阅读说明：本技术 一种钛合金无缝管加工工艺及其加工装置 (Titanium alloy seamless tube processing technology and processing device thereof ) 是由 陈诚 陈怡� 陈林锡 章国琴 于 2021-09-23 设计创作，主要内容包括：本发明属于钛合金无缝管加工技术领域,其具体提供了一种钛合金无缝管加工工艺及其加工装置,其特征在于：其中钛合金无缝管的加工装置包括底座、顶座、支撑导向辊轮、冷拔机头、三爪卡盘、前定位杆、后定位杆、推送管、推送机头、下压辊轮、安装座、导向座和外罩体,所述的底座是由第一底座、第二底座和第三底座从左往右连成一体所组成,所述的第一底座、所述的第二底座以及所述的第三底座的上端呈齐平状,所述的安装座和所述的导向座分别固定在第二底座顶部的左右两端,所述的顶座固定在安装座和导向座的顶部。本发明通过采用多次冷拔配合加热的方式实现了大尺寸钛合金管的冷拔加工,填补了大尺寸钛合金管冷拔工艺的空白。(The invention belongs to the technical field of titanium alloy seamless tube processing, and particularly provides a titanium alloy seamless tube processing technology and a processing device thereof, which are characterized in that: wherein processing apparatus of titanium alloy seamless pipe includes base, footstock, support direction running roller, cold drawing aircraft nose, three-jaw chuck, preceding locating lever, back locating lever, propelling movement pipe, propelling movement aircraft nose, push down running roller, mount pad, guide holder and the dustcoat body, the base turn right from a left side by first base, second base and third base and become integrative and constitute, first base the second base and the upper end of third base be flush form, the mount pad with the guide holder fix respectively at the both ends of controlling at second base top, the footstock fix the top at mount pad and guide holder. The cold-drawing processing of the large-size titanium alloy pipe is realized by adopting a mode of multiple cold-drawing matched heating, and the blank of the cold-drawing process of the large-size titanium alloy pipe is filled.)

1. The utility model provides a titanium alloy seamless pipe processingequipment which characterized in that: comprises a base, a top seat (6), a supporting guide roller (8), a cold-drawing machine head (15), a three-jaw chuck (24), a front positioning rod (25), a rear positioning rod, a pushing pipe (11), a pushing machine head (9), a pressing roller (32), a mounting seat (14), a guide seat (7) and an outer cover body (13), wherein the base is formed by connecting a first base (3), a second base (1) and a third base (2) into a whole from left to right, the upper ends of the first base (3), the second base (1) and the third base (2) are in an even shape, the mounting seat (14) and the guide seat (7) are respectively fixed at the left end and the right end of the top of the second base (1), the top seat (6) is fixed at the tops of the mounting seat (14) and the guide seat (7), and the mounting groove which is communicated from left to right is formed in the mounting seat (14), the mounting groove is internally detachably connected with an outer die, the outer cover body (13) is connected to the bottom of the top seat (6) through a sliding mechanism, a plurality of supporting guide rollers (8) are sequentially arranged at the top of the second base (1) between the mounting seat (14) and the guide seat (7) from left to right, a first vertical plate (33) is respectively arranged at the front side and the rear side of each supporting guide roller (8), the supporting guide rollers (8) are rotatably connected between the two first vertical plates at the front side and the rear side through first rotating shafts, the pressing rollers (32) are positioned right above the supporting guide rollers (8) at the leftmost end, the second vertical plates (31) are respectively arranged at the front side and the rear side of the pressing rollers (32), and the pressing rollers (32) are rotatably connected between the two second vertical plates (31) at the front side and the rear side through second rotating shafts, two second vertical plates (31) are connected with a top seat (6) through a pressing mechanism, a through hole for a titanium alloy pipe to pass through is formed in the position, which is right opposite to the mounting groove, of the outer cover body (13), an annular induction heating coil is arranged in the through hole, the titanium alloy pipe passes through the outer cover body (13) along the center of the induction heating coil, a placing frame body (5) for placing different inner molds is further arranged on the front end face of the second base (1), a first electric sliding rail (17) is arranged at the top of the first base (3), a cold drawing machine head (15) is connected onto the first electric sliding rail (17), a three-jaw chuck (24) is arranged on one side of the cold drawing machine head facing the mounting seat (14), a front positioning rod (25) extends out of the center of the three-jaw chuck (24) and is connected with the front electric cylinder, one end of the front positioning rod (25) is driven by the front electric cylinder to extend into the outer mold in the mounting groove, third base (2) on be provided with second electronic slide rail (10), propelling movement aircraft nose (9) connect in second electronic slide rail (10) and its one side detachably towards guide holder (7) is connected with propelling movement pipe (11), guide holder (7) on offer the logical groove that is used for propelling movement pipe (11) to pass, back locating lever stretch out and link to each other with electronic jar in back from the center department of propelling movement pipe (11).

2. The titanium alloy seamless tube processing apparatus according to claim 1, characterized in that: the sliding mechanism comprises a first guide post (42) horizontally fixed on the outer walls of the front side and the rear side of the top seat (6), a second guide post (40) horizontally fixed at the bottom of the top seat (6), a connecting cylinder (41), a connecting piece (44) and a puller bolt (45), one side of the outer cover body (13) is provided with the connecting cylinder (41) connected with the outer cover body into a whole, the center of the connecting cylinder (41) is provided with a second through hole matched with the second guide post (40), the position of the outer cover body (13) facing the second through hole is also provided with a third through hole matched with the second guide post (40), one end of the second guide post (40) penetrates through the connecting cylinder (41) along the second through hole and is movably connected into the third through hole of the outer cover body (13), and the other end of the second guide post (40) is connected with a side plate (39) vertically fixed at the bottom of the top seat (6), two ends of the first guide post (42) are respectively detachably provided with a limiting cover body (43), the front side and the rear side of the outer cover body are respectively connected to the first guide posts (42) on the front side and the rear side of the top seat (6) in a sliding mode through a connecting piece (44), the connecting pieces (44) are limited on the first guide posts (42) through the limiting cover bodies (43) on the two ends of the first guide posts (42), the outer wall of the connecting cylinder body (41) is provided with threaded holes communicated with the second through holes, and the tightening bolts (45) penetrate through the threaded holes to be in contact with the second guide posts (40) in the second through holes.

3. The titanium alloy seamless tube processing apparatus according to claim 1, characterized in that: the pressing mechanism comprises a pressing electric cylinder (12), a lower pressing plate (26), a first spring (28), a third guide pillar (29) and a supporting plate (27), the upper end of a second vertical plate (31) is fixed to the bottom of the supporting plate (27), the supporting plate (27) is located under the lower pressing plate (26) and is connected with the lower pressing plate through the first spring (28), the upper end of the third guide pillar (29) is fixed to the bottom of the lower pressing plate (26), the lower end of the third guide pillar (29) penetrates through the supporting plate (27) and is in sliding connection with the supporting plate, one end of the third guide pillar (29) penetrating through the supporting plate (27) is provided with a falling prevention plate (30), the pressing electric cylinder (12) is installed on a top seat (6), and the shaft outlet end of the pressing electric cylinder (12) penetrates through the top seat (6) and is connected with the lower pressing plate (26).

4. The titanium alloy seamless tube processing apparatus according to claim 1, characterized in that: first base (3) on still be provided with titanium alloy pipe and retrieve the direction cover body (16), the lower extreme of the direction cover body (16) is retrieved to titanium alloy pipe stretches into in first base (3) and is linked together with guide way (4) of seting up on first base (3) front end outer wall, one section that guide way (4) are located first base (3) is the slope form, all be provided with interception roller assembly (18) on the outer wall of first base (3) front end and second base (1) front end, be provided with interception roller assembly (18) three or more on the outer wall of first base (3) front end, a plurality of interception roller assembly (18) on first base (3) and second base (1) are from left side to right horizontal arranging in proper order.

5. The titanium alloy seamless tube processing apparatus according to claim 4, wherein: the titanium alloy pipe recovery guide cover body (16) is formed by connecting an upper cover body (16-1) and a lower cover body (16-8) into a whole up and down, the upper cover body is wide at the top and narrow at the bottom, one side of the lower cover body (16-8) is provided with a notch (16-2) communicated with a guide groove (4), the other side of the lower cover body is provided with a U-shaped seat (16-5) and a switch electric cylinder (16-6), the switch electric cylinder (16-6) is connected with an adjusting plate (16-4) through a connecting rod (16-7), two ends of the connecting rod (16-7) are respectively movably connected with the adjusting plate (16-4) and the switch electric cylinder (16-6), one end of the adjusting plate (16-4) is rotatably connected in the U-shaped seat (16-5) through a third rotating shaft, the top of the adjusting plate (16-4) is connected with the buffer plate (16-3) through a second spring (16-9).

6. The titanium alloy seamless tube processing apparatus according to claim 4, wherein: the interception roller component (18) consists of a fourth rotating shaft (18-2), a first roller (18-1), an interception plate (18-3) and a driving wheel (18-4), the first roller (18-1) and the interception plate (18-3) are connected into a whole left and right, one end of the fourth rotating shaft (18-2) sequentially passes through the first roller (18-1) and the interception plate (18-3), the driving wheel (18-4) is arranged on one end of a fourth rotating shaft (18-2) which passes through the interception plate (18-3), the first roller (18-1) is sleeved on the fourth rotating shaft (18-2) and rotates along with the fourth rotating shaft, and the driving wheels (18-4) connected to the plurality of intercepting roller assemblies (18) are sequentially connected through the conveyor belt.

7. The titanium alloy seamless tube processing apparatus according to claim 4, wherein: the front end face of the second base (1) is vertically provided with a sliding rail (21), the sliding rail (21) is connected with a lifting plate (20) in a sliding manner, the bottom of the lifting plate (20) is connected with a lifting electric cylinder (22) arranged on the front end face of the second base (1), the front end face of the lifting plate (20) is horizontally and sequentially connected with a plurality of lifting roller assemblies (23), each lifting roller assembly is composed of a fifth rotating shaft (23-2), a second roller (23-1) and a limiting plate (23-3), the right end of the lifting plate is provided with a baffle (19) connected with the lifting roller assembly into a whole, one end of the fifth rotating shaft (23-2) is rotatably connected to the front end face of the lifting plate (20), and the second roller (23-1) is sleeved on the other end of the fifth rotating shaft (23-2) and rotates along with the second roller (23-1), the second roller (23-1) and the limiting plate (23-3) are connected into a whole.

8. The titanium alloy seamless tube processing apparatus according to claim 4, wherein: the top of the second base (1) is further provided with an inner mold protection device, the inner mold protection device comprises a frame body (35), fourth guide columns (38), a fourth spring (37) and guide rings (36) arranged on the front side and the rear side of the frame body (35), the frame body (35) is located on the right side of the mounting seat (24) and connected to the top of the second base (1) through the fourth spring (37), the two fourth guide columns (38) are vertically arranged on the top of the second base (1) relative to the positions of the guide rings (36) on the front side and the rear side of the frame body (35), the fourth guide columns (38) penetrate through the guide rings (36) and are in sliding connection with the guide rings, and grooves used for falling into the frame body when the inner mold falls are formed in the top of the frame body (35).

9. The titanium alloy seamless tube processing apparatus according to claim 1, characterized in that: the bottom of the top seat (6) is vertically fixed with a feeding baffle (54), the lower end of the feeding baffle (54) extends to the upper part of one end of the supporting guide roller (8), the feeding baffle (54) faces the blanking guide cover body (46) of the feeding mechanism, the feeding mechanism comprises a top plate (48), two supports (47), a distribution mechanism and a blanking guide cover body (46), the two supports (47) are arranged, the two supports (47) are oppositely arranged, the top plate (48) is fixed at the upper ends of the two supports (47), the distribution mechanism is arranged between the two supports (47), the distribution mechanism comprises a distribution disc (53), a driving shaft, a second servo motor, an arc baffle (51) and an arc baffle mounting seat (50), the arc baffle (51) and the arc baffle mounting seat (50) are respectively provided with two parts, the utility model discloses a pipe fitting, including distribution plate (53), arc baffle (51), drive shaft, arc baffle mount pad (50), support (47), arc baffle (53), second guide way, regulation bolt (52), the one end of regulation bolt (52) is passed through the screw through hole and is stretched into in the guide way with arc baffle (51), arc baffle (51) seted up towards one side of distribution plate with distribution plate (53) excircle assorted arc wall, evenly set up a plurality of on the outer wall of distribution plate (53) and be used for the depositing of tubular product and accomodate the groove, the drive shaft link to each other with second servo motor, two arc baffle mount pad (50) are fixed respectively on two supports (47), set up the second guide way that is used for connecting arc baffle (51) on arc baffle mount pad (50), one side swing joint that keeps away from the arc wall on arc baffle (51) is in the guide way, arc baffle mount pad (50) on still set up the screw through hole that communicates with second guide way, screw through hole in-connection have regulation bolt (52), the one end of regulation bolt (52) is passed the screw through hole and is stretched into in the guide way with arc baffle (51) The feeding device is characterized in that the feeding holes are formed between the upper ends of the two arc-shaped baffle mounting seats (50), the discharging holes are formed between the lower ends of the two arc-shaped baffle mounting seats, the guide seats (49) used for rolling pipes are arranged at the tops of the two arc-shaped baffle mounting seats, the blanking material guide cover body (46) is obliquely arranged, the upper end of the blanking material guide cover body is connected with the discharging holes, and the lower end of the blanking material guide cover body (46) extends to the position above the other end of the supporting guide roller wheel (8) and faces the feeding baffle (54).

10. A titanium alloy seamless tube processing apparatus according to any one of claims 1 to 9, characterized in that: the machining process of the titanium alloy seamless tube machining device comprises the following steps:

s1: conveying the titanium alloy pipe to be subjected to cold drawing processing to a supporting guide roller of a cold drawing device through an automatic feeding mechanism;

s2: installing an outer die in an installation seat of the cold-drawing device, and adjusting the position of an outer cover body to enable the outer die to be tightly attached to the right end face of the installation seat;

s3: starting a pushing mechanism at the right end of the cold drawing device, conveying the titanium alloy pipe leftwards by using a pushing pipe, detecting the position of the titanium alloy pipe by using a photoelectric probe arranged in the cold drawing device, and starting a downward pressing electric cylinder to clamp the titanium alloy pipe up and down by using a downward pressing roller and a supporting guide roller when the photoelectric probe detects the titanium alloy pipe;

s4: adjusting the position of a cold drawing machine head at the left end of the cold drawing device to enable a three-jaw chuck arranged at the right end of the cold drawing machine head to be close to the left end of the mounting seat, and starting a front electric cylinder to enable a front positioning rod to penetrate through the cold drawing machine head, extend out of the center of the three-jaw chuck and extend into an outer die of the mounting seat;

s5: after the titanium alloy pipe is clamped, a rear electric cylinder connected with a rear positioning rod in the pushing pipe is started to enable the rear positioning rod to extend into the front end of the titanium alloy pipe from the rear end of the titanium alloy pipe, an inner die is installed on the rear positioning rod in the right end of the titanium alloy pipe, a conveying servo motor connected with a pressing roller is started, the titanium alloy pipe can be continuously conveyed leftwards under the action of friction force, meanwhile, a pushing mechanism and the rear electric cylinder are started to enable the pushing pipe and the inner die to be conveyed leftwards together with the titanium alloy pipe, when the titanium alloy pipe penetrates through an outer cover body, the titanium alloy pipe before cold drawing is heated through an induction coil installed in the outer cover body, when the left end of the titanium alloy pipe extends into the outer die, a front positioning rod can be inserted into the inner die, and at the moment, the rear electric cylinder is closed to enable the inner die to be pushed forwards and backwards in the outer die by the front positioning rod and the rear positioning rod;

s6: continuously starting a conveying servo motor and a pushing mechanism to enable the left end of the titanium alloy pipe to penetrate through the mounting seat and be connected into the three-jaw chuck, fixing the left end of the titanium alloy pipe and the cold drawing machine head through the three-jaw chuck, and starting the pressing electric cylinder reversely to enable the pressing roller to be separated from the titanium alloy pipe;

s7: starting a cold-drawing machine head and a pushing mechanism to enable the titanium alloy pipe to translate until the titanium alloy pipe completely penetrates through the mounting seat, performing first cold drawing on the titanium alloy pipe after the titanium alloy pipe is electrically heated by utilizing the matching of an outer die and an inner die, meanwhile, firstly reversely starting a rear electric cylinder to enable the inner die to be separated from a rear positioning rod, and then reversely starting a front electric cylinder to enable the inner die to be separated from a front positioning rod through manual control;

s8: the titanium alloy pipe subjected to the first cold drawing is placed on the supporting guide roller again, and then the steps S3 to S7 are repeated for n times until the size of the titanium alloy pipe meets the requirement, an inner die is replaced every time the titanium alloy pipe passes through the step S5, the outer diameter of the inner die which is replaced every time is intersected with the outer diameter of the inner die which is replaced last time and is 1-2mm larger, the difference of the outer diameters of the inner dies which are replaced every time is the same, and n = (the inner diameter before the titanium alloy pipe is processed-the inner diameter required by the titanium alloy pipe)/(the outer diameter before the inner die is replaced-the outer diameter before the inner die is replaced) in the step S8.

Technical Field

The invention relates to the technical field of titanium alloy seamless tube processing, in particular to a titanium alloy seamless tube processing technology and a processing device thereof.

Background

The titanium alloy seamless pipe is a hollow long-strip steel material, has the same bending strength and torsion strength and lighter weight, and is widely applied to the fields of aviation, military industry, construction, machine manufacturing, steel construction projects, shipbuilding, solar power generation supports, steel structure engineering, electric power engineering, power plants, agriculture, chemical machinery and the like.

The titanium alloy is an alloy formed by adding other elements based on titanium element, compared with a seamless steel tube, the titanium alloy seamless tube has higher strength (tensile strength/density), the tensile strength can reach 100-140 kgf/mm < 2 >, and the density is only 60% of that of the steel.

The titanium alloy seamless tube also has the advantage of good medium-temperature strength, the use temperature is hundreds of degrees higher than that of aluminum alloy, the required strength can be still maintained at the medium temperature, and the titanium alloy seamless tube can work for a long time at the temperature of 450-500 ℃. The titanium alloy has good corrosion resistance, immediately forms a layer of uniform and compact oxide film on the surface of titanium in the atmosphere, and has the capability of resisting corrosion of various mediums. Titanium generally has good corrosion resistance in oxidizing and neutral media, and is more excellent in corrosion resistance in seawater, wet chlorine and chloride solutions. However, in reducing media such as hydrochloric acid and the like, titanium has poor corrosion resistance and good low-temperature performance; titanium alloys with extremely low interstitial elements, such as TA7, can maintain certain plasticity at the temperature of 253 ℃ below zero, and have the advantages of low elastic modulus, small thermal conductivity, no ferromagnetism, high hardness, poor punchability and good thermoplasticity; due to the poor stamping of the titanium alloy, the titanium alloy pipe is easy to break during cold drawing, so that other modes can be selected for processing the titanium alloy pipe with a long length, and compared with a cold drawing process, the other modes are complex in operation and high in cost.

Disclosure of Invention

The invention provides a processing technology and a processing device of a titanium alloy seamless tube, which realize cold-drawing processing of a large-size titanium alloy tube by adopting a mode of multiple cold-drawing matched heating, thereby filling the blank of the cold-drawing technology of the large-size titanium alloy tube, and meanwhile, the invention has simple operation and high cold-drawing yield, and is suitable for large-scale popularization and use.

In order to solve the technical problem, the invention provides a titanium alloy seamless tube processing device, which is characterized in that: comprises a base, a top seat, supporting guide rollers, a cold-drawing machine head, a three-jaw chuck, a front positioning rod, a rear positioning rod, a pushing pipe, a pushing machine head, a pressing roller, a mounting seat, a guide seat and an outer cover body, wherein the base is formed by connecting a first base, a second base and a third base into a whole from left to right, the upper ends of the first base, the second base and the third base are flush, the mounting seat and the guide seat are respectively fixed at the left end and the right end of the top of the second base, the top seat is fixed at the top of the mounting seat and the guide seat, the mounting seat is provided with a left-right through mounting groove, the mounting groove is internally and detachably connected with an outer die, the outer cover body is connected at the bottom of the top seat through a sliding mechanism, and the top of the second base between the mounting seat and the guide seat is sequentially provided with a plurality of supporting guide rollers from left to right, the front side and the rear side of the supporting guide roller are respectively provided with a first vertical plate, the supporting guide roller is rotatably connected between the two first vertical plates at the front side and the rear side through a first rotating shaft, the pressing roller is positioned right above the leftmost supporting guide roller, the front side and the rear side of the pressing roller are respectively provided with a second vertical plate, the pressing roller is rotatably connected between the two second vertical plates at the front side and the rear side through a second rotating shaft, the two second vertical plates are connected with the top seat through a pressing mechanism, a through hole for the titanium alloy pipe to pass through is arranged at the position on the outer cover body right opposite to the installation groove, an annular induction heating coil is arranged in the through hole, the titanium alloy pipe passes through the outer cover body along the center of the induction heating coil, the front end surface of the second base is also provided with a placing frame body for placing different inner dies, and the top of the first base is provided with a first electric sliding rail, cold drawing aircraft nose connect on first electronic slide rail and its one side towards the mount pad install three-jaw chuck, preceding locating lever stretch out and link to each other with preceding electronic jar from three-jaw chuck's center, the one end of preceding locating lever stretch into the outer mould in the mounting groove through preceding electronic jar drive in, the third base on be provided with second electronic slide rail, the propelling movement aircraft nose connect at second electronic slide rail and its one side detachably towards the guide holder is connected with the propelling movement pipe, the guide holder on offer the logical groove that is used for the propelling movement pipe to pass, back locating lever stretch out and link to each other with back electronic jar from the center of propelling movement pipe.

Further: the sliding mechanism comprises a first guide post horizontally fixed on the outer walls of the front side and the rear side of the top seat, a second guide post horizontally fixed at the bottom of the top seat, a connecting cylinder, a connecting piece and a puller bolt, wherein the connecting cylinder connected with the outer cover into a whole is arranged on one side of the outer cover, a second through hole matched with the second guide post is formed in the center of the connecting cylinder, a third through hole matched with the second guide post is also formed in the position, facing the second through hole, of the outer cover, one end of the second guide post penetrates through the connecting cylinder along the second through hole and is movably connected into the third through hole of the outer cover, the other end of the second guide post is connected with a side plate vertically fixed at the bottom of the top seat, a limiting cover body is detachably mounted at each of the two ends of the first guide post, and the front side and the rear side of the outer cover are respectively connected to the first guide posts at the front side and the rear side of the top seat through a connecting piece in a sliding manner, the connecting piece is limited on the first guide pillar through limiting cover bodies at two ends of the first guide pillar, a threaded hole communicated with the second through hole is formed in the outer wall of the connecting cylinder body, and the tightening bolt penetrates through the threaded hole to be in contact with the second guide pillar in the second through hole.

And further: the lower pressing mechanism comprises a lower pressing electric cylinder, a lower pressing plate, a first spring, a third guide pillar and a supporting plate, the upper end of the second vertical plate is fixed to the bottom of the supporting plate, the supporting plate is located under the lower pressing plate and is connected with the lower pressing plate through the first spring, the upper end of the third guide pillar is fixed to the bottom of the lower pressing plate, the lower end of the third guide pillar penetrates through the supporting plate and is in sliding connection with the supporting plate, an anti-falling plate is installed at one end of the third guide pillar penetrating through the supporting plate, the lower pressing electric cylinder is installed on the top seat, and the shaft outlet end of the lower pressing electric cylinder penetrates through the top seat and is connected with the lower pressing plate.

And further: the first base on still be provided with the titanium alloy pipe and retrieve the direction cover body, the lower extreme that the direction cover body was retrieved to the titanium alloy pipe stretches into in the first base and communicates with the guide way of seting up on first base front end outer wall mutually, one section that the guide way is located first base is the slope form, all be provided with the interception roller assembly on the first base front end outer wall and on the outer wall of second base front end, be provided with the interception roller assembly more than three or three on the outer wall of first base front end, a plurality of interception roller assembly on first base and the second base is from a left side turn right in proper order and horizontally arranges.

And further: the titanium alloy pipe retrieve the guide cover body and constitute by last cover body and cover body down and link to one piece from top to bottom, last cover body be narrow form under wide, one side of the lower cover body set up the breach that communicates with the guide way mutually, the electronic jar of U type seat and switch is installed to the opposite side of the lower cover body, the electronic jar of switch passes through the connecting rod and links to each other with the regulating plate, the both ends of connecting rod respectively with the electronic jar swing joint of regulating plate and switch, the one end of regulating plate is passed through the third pivot and is rotated and connect in U type seat, the top of regulating plate link to each other with the buffer board through the second spring.

And further: the intercepting roller component comprises a fourth rotating shaft, a first roller, an intercepting plate and a driving wheel, the first roller and the intercepting plate are connected into a whole left and right, one end of the fourth rotating shaft sequentially penetrates through the first roller and the intercepting plate, the driving wheel is installed at one end of the fourth rotating shaft penetrating through the intercepting plate, the first roller is sleeved on the fourth rotating shaft and rotates together with the fourth rotating shaft, and the driving wheels connected to the intercepting roller components are sequentially connected through a conveying belt.

And further: the preceding terminal surface of second base on still vertically be provided with the slide rail, the slide rail on sliding connection have a lifter plate, the bottom of lifter plate links to each other with the electronic jar of lift of installing on the terminal surface before the second base, the preceding terminal surface of lifter plate on still the level have connected gradually a plurality of lift roller subassembly, the lift roller subassembly by fifth pivot, second roller, limiting plate, the right-hand member of lifter plate be provided with rather than the baffle that fuses, the one end of fifth pivot rotate and connect on the preceding terminal surface of lifter plate, second roller suit on the other end of fifth pivot and along with it is together rotatory, second roller and limiting plate fuse.

And further: the top of the second base is also provided with an inner mold protection device, the inner mold protection device comprises a frame body, a fourth guide pillar, a fourth spring and guide rings arranged on the front side and the rear side of the frame body, the frame body is located on the right side of the mounting seat and connected to the top of the second base through the fourth spring, two fourth guide pillars are vertically arranged on the top of the second base relative to the positions of the guide rings on the front side and the rear side of the frame body, the fourth guide pillars penetrate through the guide rings and are in sliding connection with the guide rings, and a groove used for falling into the frame body when the inner mold falls is formed in the top of the frame body.

And further: the bottom of the top seat is also vertically fixed with a feeding baffle, the lower end of the feeding baffle extends to the upper part of one end of the supporting guide roller, the feeding baffle faces against a discharging guide cover body of the feeding mechanism, the feeding mechanism comprises a top plate, supports, a distribution mechanism and a discharging guide cover body, the supports are arranged in two numbers, the two supports are oppositely arranged, the top plate is fixed at the upper ends of the two supports, the distribution mechanism is arranged between the two supports, the distribution mechanism comprises a distribution disc, a driving shaft, a second servo motor, an arc baffle and an arc baffle mounting seat, the arc baffle and the arc baffle mounting seat are respectively arranged in two numbers, the distribution disc is sleeved on the driving shaft, two arc baffles are respectively arranged on two sides of the distribution disc, and one side of the arc baffle, facing the distribution disc, is provided with an arc groove matched with the excircle of the distribution disc, the outer wall of the distribution disc is uniformly provided with a plurality of storage grooves for pipes, the driving shaft is connected with a second servo motor, two arc baffle installation seats are respectively fixed on two brackets, the arc baffle installation seats are provided with second guide grooves for connecting arc baffles, one sides of the arc baffles, far away from the arc grooves, are movably connected in the guide grooves, the arc baffle installation seats are also provided with threaded through holes communicated with the second guide grooves, the threaded through holes are internally connected with adjusting bolts, one ends of the adjusting bolts penetrate through the threaded through holes and extend into the guide grooves to be connected with the arc baffles, a feed inlet is formed between the upper ends of the two arc baffle installation seats, a discharge outlet is formed between the lower ends of the two arc baffle installation seats, and the tops of the two arc baffle installation seats are provided with guide seats for the pipes to roll, the feeding guide cover is obliquely arranged, the upper end of the feeding guide cover is connected with the discharge port, and the lower end of the feeding guide cover extends to the position above the other end of the supporting guide roller and faces the feeding baffle.

S1: conveying the titanium alloy pipe to be subjected to cold drawing processing to a supporting guide roller of a cold drawing device through an automatic feeding mechanism;

s2: installing an outer die in an installation seat of the cold-drawing device, and adjusting the position of an outer cover body to enable the outer die to be tightly attached to the right end face of the installation seat;

s3: starting a pushing mechanism at the right end of the cold drawing device, conveying the titanium alloy pipe leftwards by using a pushing pipe, detecting the position of the titanium alloy pipe by using a photoelectric probe arranged in the cold drawing device, and starting a downward pressing electric cylinder to clamp the titanium alloy pipe up and down by using a downward pressing roller and a supporting guide roller when the photoelectric probe detects the titanium alloy pipe;

s4: adjusting the position of a cold drawing machine head at the left end of the cold drawing device to enable a three-jaw chuck arranged at the right end of the cold drawing machine head to be close to the left end of the mounting seat, and starting a front electric cylinder to enable a front positioning rod to penetrate through the cold drawing machine head, extend out of the center of the three-jaw chuck and extend into an outer die of the mounting seat;

s5: after the titanium alloy pipe is clamped, a rear electric cylinder connected with a rear positioning rod in the pushing pipe is started to enable the rear positioning rod to extend into the front end of the titanium alloy pipe from the rear end of the titanium alloy pipe, an inner die is installed on the rear positioning rod in the right end of the titanium alloy pipe, a conveying servo motor connected with a pressing roller is started, the titanium alloy pipe can be continuously conveyed leftwards under the action of friction force, meanwhile, a pushing mechanism and the rear electric cylinder are started to enable the pushing pipe and the inner die to be conveyed leftwards together with the titanium alloy pipe, when the titanium alloy pipe penetrates through an outer cover body, the titanium alloy pipe before cold drawing is heated through an induction coil installed in the outer cover body, when the left end of the titanium alloy pipe extends into the outer die, a front positioning rod can be inserted into the inner die, and at the moment, the rear electric cylinder is closed to enable the inner die to be pushed forwards and backwards in the outer die by the front positioning rod and the rear positioning rod;

s6: continuously starting a conveying servo motor and a pushing mechanism to enable the left end of the titanium alloy pipe to penetrate through the mounting seat and be connected into the three-jaw chuck, fixing the left end of the titanium alloy pipe and the cold drawing machine head through the three-jaw chuck, and starting the pressing electric cylinder reversely to enable the pressing roller to be separated from the titanium alloy pipe;

s7: starting a cold-drawing machine head and a pushing mechanism to enable the titanium alloy pipe to translate until the titanium alloy pipe completely penetrates through the mounting seat, performing first cold drawing on the titanium alloy pipe after the titanium alloy pipe is electrically heated by utilizing the matching of an outer die and an inner die, meanwhile, firstly reversely starting a rear electric cylinder to enable the inner die to be separated from a rear positioning rod, and then reversely starting a front electric cylinder to enable the inner die to be separated from a front positioning rod through manual control;

s8: the titanium alloy pipe subjected to the first cold drawing is placed on the supporting guide roller again, and then the steps S3 to S7 are repeated for n times until the size of the titanium alloy pipe meets the requirement, an inner die is replaced every time the titanium alloy pipe passes through the step S5, the outer diameter of the inner die which is replaced every time is intersected with the outer diameter of the inner die which is replaced last time and is 1-2mm larger, the difference of the outer diameters of the inner dies which are replaced every time is the same, and n = (the inner diameter before the titanium alloy pipe is processed-the inner diameter required by the titanium alloy pipe)/(the outer diameter before the inner die is replaced-the outer diameter before the inner die is replaced) in the step S8.

After the structure is adopted, the cold-drawing processing of the large-size titanium alloy pipe is realized by adopting a mode of multiple cold-drawing matched heating, so that the blank of the cold-drawing process of the large-size titanium alloy pipe is filled, and meanwhile, the cold-drawing processing method is simple to operate, high in cold-drawing yield and suitable for large-scale popularization and application.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is an internal structure view of a titanium alloy pipe recovery guide cover body.

Fig. 3 is a structural view of an intercepting roller assembly.

Fig. 4 is a structural view of the elevating roller assembly.

Fig. 5 is an enlarged view of a in fig. 1.

Fig. 6 is a partial configuration diagram of the pressing mechanism.

Fig. 7 is a fitting structure view of the down-pressure roller and the support guide roller.

Fig. 8 is a structural view of an inner mold guard.

Fig. 9 is a structural view of the slide mechanism.

Fig. 10 is a structural view of the feed mechanism.

In the figure: 1. a second base; 2. a third base; 3. a first base; 4. a guide groove; 5. placing the frame body; 6. a top seat; 7. a guide seat; 8. supporting a guide roller; 9. pushing the machine head; 10. a second electric slide rail; 11. pushing the pipe; 12. pressing down the electric cylinder; 13. an outer cover body; 14. a mounting seat; 15. cold drawing the machine head; 16. the titanium alloy pipe is recovered and guided to the cover body; 16-1, an upper cover body; 16-2, a gap; 16-3, a buffer plate; 16-4, adjusting plates; 16-5, a U-shaped seat; 16-6, switching an electric cylinder; 16-7, connecting rod; 16-8, a lower cover body; 16-9, a second spring; 17. a first electric slide rail; 18. intercepting a roller assembly; 18-1, a first roller; 18-2, a fourth rotating shaft; 18-3, a interception plate; 18-4, a transmission wheel; 19. a baffle plate; 20. a lifting plate; 21. a slide rail; 22. a lifting electric cylinder; 23. a lifting roller assembly; 23-1, a second roller; 23-2, a fifth rotating shaft; 23-3, a limiting plate; 24. a three-jaw chuck; 25. a front positioning rod; 26. a lower pressing plate; 27. a support plate; 28. a first spring; 29. a third guide post; 30. an anti-falling plate; 31. a second vertical plate; 32. pressing down the roller; 33. a first vertical plate; 34. a first servo motor; 35. a frame body; 36. a guide ring; 37. a fourth spring; 38. a fourth guide post; 39. a side plate; 40. a second guide post; 41. connecting the cylinder body; 42. a first guide post; 43. a limiting cover body; 44. a connecting member; 45. jacking the bolt; 46. a blanking material guide cover body; 47. a support; 48. a top plate; 49. a guide seat; 50. an arc baffle mounting seat; 51. an arc-shaped baffle plate; 52. adjusting the bolt; 53. a distribution tray; 54. a feed baffle.

Detailed Description

As shown in fig. 1, 5 and 7, the titanium alloy seamless tube processing device comprises a base, a top seat 6, a supporting guide roller 8, a cold drawing machine head 15, a three-jaw chuck 24, a front positioning rod 25, a rear positioning rod, a pushing pipe 11, a pushing machine head 9, a pressing roller 32, a mounting seat 14, a guide seat 7 and an outer cover body 13, wherein the base is formed by connecting a first base 3, a second base 1 and a third base 2 into a whole from left to right, the upper ends of the first base 3, the second base 1 and the third base 2 are flush, the mounting seat 14 and the guide seat 7 are respectively fixed at the left end and the right end of the top of the second base 1, the top seat 6 is fixed at the tops of the mounting seat 14 and the guide seat 7, the mounting seat 14 is provided with a left-right through mounting groove, an outer die is detachably connected in the mounting groove, the outer cover body 13 is connected to the bottom of the top seat 6 through a sliding mechanism, a plurality of supporting guide rollers 8 are sequentially arranged from left to right on the top of the second base 1 between the installation seat 14 and the guide seat 7, a first vertical plate 33 is respectively arranged on the front side and the rear side of each supporting guide roller 8, the supporting guide rollers 8 are rotatably connected between the two first vertical plates on the front side and the rear side through first rotating shafts, the pressing rollers 32 are positioned right above the supporting guide rollers 8 at the leftmost end, a second vertical plate 31 is respectively arranged on the front side and the rear side of each pressing roller 32, each pressing roller 32 is rotatably connected between the two second vertical plates 31 on the front side and the rear side through second rotating shafts, one end of each second rotating shaft is connected with a first servo motor 34 fixed on one second vertical plate, and the two second vertical plates 31 are connected with the top seat 6 through pressing mechanisms, a through hole for the titanium alloy pipe to pass through is formed in the position, opposite to the installation groove, of the outer cover body 13, an annular induction heating coil is arranged in the through hole, the titanium alloy pipe passes through the outer cover body 13 along the center of the induction heating coil, a placing frame body 5 for placing different inner molds is further arranged on the front end face of the second base 1, a first electric slide rail 17 is arranged at the top of the first base 3, the cold drawing machine head 15 is connected to the first electric slide rail 17, a three-jaw chuck 24 is arranged on one side, facing the installation seat 14, of the cold drawing machine head 15, the front positioning rod 25 extends out from the center of the three-jaw chuck 24 and is connected with a front electric cylinder, one end of the front positioning rod 25 is driven by the front electric cylinder to extend into the outer mold in the installation groove, a second electric slide rail 10 is arranged on the third base 2, the pushing machine head 9 is connected to the second electric slide rail 10, and a pushing pipe 11 is detachably connected to one side, facing the guide seat 7, the guide seat 7 is provided with a through groove for the pushing pipe 11 to pass through, and the rear positioning rod extends out of the center of the pushing pipe 11 and is connected with the rear electric cylinder.

The processing technology using the device comprises the following steps:

s1: conveying the titanium alloy pipe to be subjected to cold drawing processing to a supporting guide roller of a cold drawing device through an automatic feeding mechanism;

s2: installing an outer die in an installation seat of the cold-drawing device, and adjusting the position of an outer cover body to enable the outer die to be tightly attached to the right end face of the installation seat;

s3: starting a pushing mechanism at the right end of the cold drawing device, conveying the titanium alloy pipe leftwards by using a pushing pipe, detecting the position of the titanium alloy pipe by using a photoelectric probe arranged in the cold drawing device, and starting a downward pressing electric cylinder to clamp the titanium alloy pipe up and down by using a downward pressing roller and a supporting guide roller when the photoelectric probe detects the titanium alloy pipe;

s4: adjusting the position of a cold drawing machine head at the left end of the cold drawing device to enable a three-jaw chuck arranged at the right end of the cold drawing machine head to be close to the left end of the mounting seat, and starting a front electric cylinder to enable a front positioning rod to penetrate through the cold drawing machine head, extend out of the center of the three-jaw chuck and extend into an outer die of the mounting seat;

s5: after the titanium alloy pipe is clamped, a rear electric cylinder connected with a rear positioning rod in the pushing pipe is started to enable the rear positioning rod to extend into the front end of the titanium alloy pipe from the rear end of the titanium alloy pipe, an inner die is installed on the rear positioning rod in the right end of the titanium alloy pipe, a conveying servo motor connected with a pressing roller is started, the titanium alloy pipe can be continuously conveyed leftwards under the action of friction force, meanwhile, a pushing mechanism and the rear electric cylinder are started to enable the pushing pipe and the inner die to be conveyed leftwards together with the titanium alloy pipe, when the titanium alloy pipe penetrates through an outer cover body, the titanium alloy pipe before cold drawing is heated through an induction coil installed in the outer cover body, when the left end of the titanium alloy pipe extends into the outer die, a front positioning rod can be inserted into the inner die, and at the moment, the rear electric cylinder is closed to enable the inner die to be pushed forwards and backwards in the outer die by the front positioning rod and the rear positioning rod;

s6: continuously starting a conveying servo motor and a pushing mechanism to enable the left end of the titanium alloy pipe to penetrate through the mounting seat and be connected into the three-jaw chuck, fixing the left end of the titanium alloy pipe and the cold drawing machine head through the three-jaw chuck, and starting the pressing electric cylinder reversely to enable the pressing roller to be separated from the titanium alloy pipe;

s7: starting a cold-drawing machine head and a pushing mechanism to enable the titanium alloy pipe to translate until the titanium alloy pipe completely penetrates through the mounting seat, performing first cold drawing on the titanium alloy pipe after the titanium alloy pipe is electrically heated by utilizing the matching of an outer die and an inner die, meanwhile, firstly reversely starting a rear electric cylinder to enable the inner die to be separated from a rear positioning rod, and then reversely starting a front electric cylinder to enable the inner die to be separated from a front positioning rod through manual control;

s8: the titanium alloy pipe subjected to the first cold drawing is placed on the supporting guide roller again, and then the steps S3 to S7 are repeated for n times until the size of the titanium alloy pipe meets the requirement, an inner die is replaced every time the titanium alloy pipe passes through the step S5, the outer diameter of the inner die which is replaced every time is intersected with the outer diameter of the inner die which is replaced last time and is 1-2mm larger, the difference of the outer diameters of the inner dies which are replaced every time is the same, and n = (the inner diameter before the titanium alloy pipe is processed-the inner diameter required by the titanium alloy pipe)/(the outer diameter before the inner die is replaced-the outer diameter before the inner die is replaced) in the step S8.

The cold-drawing processing of the large-size titanium alloy pipe is realized by adopting a mode of multiple cold-drawing matched heating, so that the blank of the cold-drawing process of the large-size titanium alloy pipe is filled, and meanwhile, the cold-drawing processing method is simple to operate, high in cold-drawing yield and suitable for large-scale popularization and use; and the heating efficiency and the cold drawing working efficiency are greatly improved by an induction heating mode.

The sliding mechanism as shown in fig. 9 includes a first guide post 42 horizontally fixed on the outer walls of the front and rear sides of the top base 6, a second guide post 40 horizontally fixed at the bottom of the top base 6, a connecting cylinder 41, a connecting piece 44 and a tightening bolt 45, wherein one side of the outer cover 13 is provided with the connecting cylinder 41 connected with the outer cover, the center of the connecting cylinder 41 is provided with a second through hole matched with the second guide post 40, the outer cover 13 is also provided with a third through hole matched with the second guide post 40 at the position facing the second through hole, one end of the second guide post 40 passes through the connecting cylinder 41 along the second through hole and is movably connected into the third through hole of the outer cover 13, the other end of the second guide post 40 is connected with a side plate 39 vertically fixed at the bottom of the top base 6, two ends of the first guide post 42 are respectively detachably provided with a limiting cover 43, and the front and rear sides of the outer cover are respectively connected with the first guide posts at the front and rear sides of the top base 6 by the connecting piece 44 in a sliding manner In the connection cylinder body 41, a threaded hole communicated with the second through hole is formed in the outer wall of the connection cylinder body 41, and the tightening bolt 45 penetrates through the threaded hole to contact with the second guide post 40 in the second through hole. The second guide posts and the two first guide posts are arranged in a triangular mode, so that the outer cover body can be effectively prevented from changing positions in the translation process, and the stability of the structure is improved.

The pressing mechanism shown in fig. 1 and 6 comprises a pressing electric cylinder 12, a lower pressing plate 26, a first spring 28, a third guide post 29 and a supporting plate 27, wherein the upper end of the second vertical plate 31 is fixed at the bottom of the supporting plate 27, the supporting plate 27 is positioned right below the lower pressing plate 26 and is connected with each other through the first spring 28, the upper end of the third guide post 29 is fixed at the bottom of the pressing plate 26, the lower end of the third guide post 29 penetrates through the supporting plate 27 and is connected with the supporting plate in a sliding manner, one end of the third guide post 29 penetrating through the supporting plate 27 is provided with a falling prevention plate 30, the pressing electric cylinder 12 is arranged on a top seat 6, and the shaft outlet end of the pressing electric cylinder 12 penetrates through the top seat 6 and is connected with the lower pressing plate 26. The titanium alloy pipe is protected by arranging the first spring, so that the titanium alloy pipe is prevented from being damaged in the pressing process.

As shown in fig. 1, a titanium alloy pipe recycling guide cover body 16 is further disposed on the first base 3, a lower end of the titanium alloy pipe recycling guide cover body 16 extends into the first base 3 and is communicated with a guide groove 4 formed in the outer wall of the front end of the first base 3, a section of the guide groove 4 located in the first base 3 is inclined, intercepting roller assemblies 18 are disposed on the outer wall of the front end of the first base 3 and the outer wall of the front end of the second base 1, three or more intercepting roller assemblies 18 are disposed on the outer wall of the front end of the first base 3, and the plurality of intercepting roller assemblies 18 on the first base 3 and the second base 1 are horizontally arranged from left to right in sequence.

The titanium alloy pipe recovery guiding cover 16 shown in figures 1 and 2 is composed of an upper cover 16-1 and a lower cover 16-8 which are connected into a whole up and down, the upper cover body is wide at the upper part and narrow at the lower part, one side of the lower cover body 16-8 is provided with a notch 16-2 communicated with the guide groove 4, the other side of the lower cover body is provided with a U-shaped seat 16-5 and a switch electric cylinder 16-6, the switch electric cylinder 16-6 is connected with the adjusting plate 16-4 through a connecting rod 16-7, two ends of the connecting rod 16-7 are respectively movably connected with an adjusting plate 16-4 and a switch electric cylinder 16-6, one end of the adjusting plate 16-4 is rotatably connected in the U-shaped seat 16-5 through a third rotating shaft, the top of the adjusting plate 16-4 is connected with the buffer plate 16-3 through a second spring 16-9. The titanium alloy pipe cold-drawing device not only can effectively prevent the titanium alloy pipe from being damaged when the titanium alloy pipe falls off, but also can automatically and uniformly process the cold-drawn titanium alloy pipe, when the titanium alloy pipe needs to be cold-drawn, the titanium alloy pipe is conveyed back to the lifting roller wheel assembly through the intercepting roller wheel assembly, and when the cold-drawing of the titanium alloy pipe is finished, the titanium alloy pipe is conveyed to the next procedure through the intercepting roller wheel assembly in a reverse rotation mode. After each cold drawing is finished, the three-jaw chuck is loosened to move the titanium alloy pipe, and the titanium alloy pipe can automatically fall into the titanium alloy pipe recovery guide cover body.

The intercepting roller assembly 18 shown in fig. 1 and 3 is composed of a fourth rotating shaft 18-2, a first roller 18-1, an intercepting plate 18-3 and a driving wheel 18-4, wherein the first roller 18-1 and the intercepting plate 18-3 are connected into a whole from left to right, one end of the fourth rotating shaft 18-2 sequentially passes through the first roller 18-1 and the intercepting plate 18-3, the driving wheel 18-4 is installed at one end of the fourth rotating shaft 18-2 passing through the intercepting plate 18-3, the first roller 18-1 is sleeved on the fourth rotating shaft 18-2 and rotates along with the fourth rotating shaft 18-2, and the driving wheels 18-4 connected to a plurality of intercepting roller assemblies 18 are sequentially connected through a conveying belt. According to the invention, the titanium alloy pipe can effectively stay on the first roller after coming out of the guide groove through the interception plate.

As shown in fig. 1 and 4, a slide rail 21 is further vertically arranged on the front end surface of the second base 1, a lifting plate 20 is slidably connected to the slide rail 21, the bottom of the lifting plate 20 is connected with a lifting electric cylinder 22 arranged on the front end surface of the second base 1, a plurality of lifting roller assemblies 23 are horizontally and sequentially connected on the front end surface of the lifting plate 20, the lifting roller component consists of a fifth rotating shaft 23-2, a second roller 23-1 and a limiting plate 23-3, a baffle plate 19 connected with the right end of the lifting plate into a whole is arranged at the right end of the lifting plate, one end of a fifth rotating shaft 23-2 is rotatably connected on the front end surface of the lifting plate 20, the second roller 23-1 is sleeved on the other end of the fifth rotating shaft 23-2 and rotates along with the fifth rotating shaft 23-2, and the second roller 23-1 and the limiting plate 23-3 are connected into a whole. When the titanium alloy pipe is conveyed to the lifting roller wheel assembly again along with the intercepting roller wheel assembly, the lifting electric cylinder is started to improve the height of the titanium alloy pipe, so that people can conveniently convey the titanium alloy pipe to the supporting guide roller wheel again, the working strength of an operator is greatly reduced, and the practicability is improved.

As shown in fig. 1 and 8, an inner mold protector is further disposed on the top of the second base 1, the inner mold protector includes a frame 35, fourth guide posts 38, fourth springs 37, and guide rings 36 disposed on the front and rear sides of the frame 35, the frame 35 is located on the right side of the mounting seat 24 and is connected to the top of the second base 1 through the fourth springs 37, two fourth guide posts 38 are vertically disposed on the top of the second base 1 relative to the positions of the guide rings 36 on the front and rear sides of the frame 35, the fourth guide posts 38 pass through the guide rings 36 and are slidably connected thereto, and a groove for the inner mold to fall into the frame when falling is formed in the top of the frame 35. By adopting the structure, the inner die can be effectively prevented from being damaged when falling.

As shown in fig. 1, 7 and 10, a feeding baffle 54 is vertically fixed at the bottom of the top base 6, the lower end of the feeding baffle 54 extends to the upper side of one end of the supporting guide roller 8, the feeding baffle 54 faces the discharging guiding cover 46 of the feeding mechanism, the feeding mechanism includes a top plate 48, two brackets 47, a distribution mechanism and the discharging guiding cover 46, the brackets 47 are arranged oppositely, the top plate 48 is fixed at the upper ends of the two brackets 47, the distribution mechanism is installed between the two brackets 47, the distribution mechanism includes a distribution plate 53, two driving shafts, a second servo motor, arc baffles 51 and arc baffle installation bases 50, the arc baffles 51 and the arc baffle installation bases 50 are respectively provided, the distribution plate 53 is sleeved on the driving shafts and two sides of the distribution plate 53 are respectively provided with one arc baffle 51, the side of the arc baffle 51 facing the distribution disc is provided with an arc-shaped groove matched with the excircle of the distribution disc 53, the outer wall of the distribution disc 53 is uniformly provided with a plurality of storage grooves for pipes, the driving shaft is connected with a second servo motor, two arc baffle installation seats 50 are respectively fixed on two brackets 47, the arc baffle installation seat 50 is provided with a second guide groove for connecting the arc baffle 51, one side of the arc baffle 51 far away from the arc-shaped groove is movably connected in the guide groove, the arc baffle installation seat 50 is also provided with a threaded through hole communicated with the second guide groove, the threaded through hole is internally connected with an adjusting bolt 52, one end of the adjusting bolt 52 passes through the threaded through hole and extends into the guide groove to be connected with the arc baffle 51, a feed inlet is formed between the upper ends of the two arc baffle installation seats 50, and a discharge outlet is formed between the lower ends of the two arc baffle installation seats, the tops of the two arc baffle mounting seats are provided with guide seats 49 for rolling the pipes, the blanking material guide cover body 46 is obliquely arranged, the upper end of the blanking material guide cover body is connected with the discharge hole, and the lower end of the blanking material guide cover body 46 extends to the position above the other end of the supporting guide roller wheel 8 and is opposite to the feeding baffle 54. By adopting the structure, the automatic feeding device can automatically complete one-by-one feeding, greatly reduces the working strength of operators, and plays a role in increasing the practical performance and improving the working efficiency.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.