阅读说明：本技术 一种不锈钢弯头管件表面精加工装置及精加工方法 (Finish machining device and finish machining method for surface of stainless steel elbow pipe fitting ) 是由 黄伟 付子豪 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种不锈钢弯头管件表面精加工装置及精加工方法,包括底板、夹紧装置、链接装置,所述的底板左端安装有链接装置,底板的右端安装有夹紧装置,本发明可以解决现有不锈钢弯头表面加工时存在的以下难题,一、传统的不锈钢弯头管件表面加工时需要人工使用工具进行夹持手动旋转,旋转的角度不均匀,影响产品的质量,不能同时对多个不锈钢弯头管件表面进行加工,工作效率低；二、传统机器在对不锈钢弯头管件表面加工时,不能对多种型号的不锈钢弯头进行加工,不锈钢弯头管件易发生夹持不稳而掉落,使得加工效果不佳,影响加工进度,可以实现智能化对不锈钢弯头管件的加工。(The invention relates to a stainless steel elbow pipe fitting surface finish machining device and a finish machining method, and the stainless steel elbow pipe fitting surface finish machining device comprises a bottom plate, a clamping device and a linking device, wherein the linking device is installed at the left end of the bottom plate, and the clamping device is installed at the right end of the bottom plate; secondly, traditional machine adds man-hour to stainless steel elbow pipe fitting surface, can not process the stainless steel elbow of multiple model, and the stainless steel elbow pipe fitting easily takes place the centre gripping unstability and drops for the processing effect is not good, influences the processing progress, can realize intelligent processing to stainless steel elbow pipe fitting.)

1. The utility model provides a stainless steel elbow pipe fitting surface finishing device, includes bottom plate (1), clamping device (2), chaining device (3), its characterized in that: the left end of the bottom plate (1) is provided with a linking device (3), and the right end of the bottom plate (1) is provided with a clamping device (2); wherein:

the clamping device (2) comprises a supporting plate (21), an inserting roller (22), a first bidirectional cylinder (23), a first cylinder (24), a retention disc (25), an expansion disc (26), an expansion plate (27) and a rubber pad (28), the supporting plate (21) is fixedly arranged at the right end of the bottom plate (1), a driving mechanism (29) is arranged on the outer wall of the right end of the supporting plate (21), the inserting roller (22) is uniformly arranged on the outer wall of the left end of the supporting plate (21) from front to back through a bearing, a cylindrical groove is formed in the inserting roller (22), a through hole is formed in the right end of the inserting roller (22), the first bidirectional cylinder (23) is fixedly arranged on the inner wall of the right end of the cylindrical groove, the output end of the first bidirectional cylinder (23) penetrates through the through hole to be provided with a tightening mechanism (4) through a flange, the retention disc (25) is fixedly arranged at the left end of the first bidirectional, install cylinder (24) on the retention disc (25) left end outer wall, the output of cylinder (24) has expansion disc (26) through flange joint, inserts roller (22) and goes up and evenly to have seted up square groove along its circumference direction, has expansion plate (27) through round pin hub connection in the square groove, and the right-hand member of expansion plate (27) is supported and is leaned on expansion disc (26), and rubber pad (28) are installed to the left end of expansion plate (27).

2. The stainless steel elbow pipe surface finishing device of claim 1, wherein: tightening mechanism (4) including telescopic link (41), rack (42), gear (43), motor (44), square bar (45) and connecting rod (46), telescopic link (41) pass through the output of flange symmetric connection at two-way cylinder (23), install connecting rod (46) on the outer wall of telescopic link (41), motor (44) are installed to the left end of connecting rod (46), install gear (43) on the output shaft of motor (44), rack (42) with a gear (43) meshing are installed to the left end of telescopic link (41), square bar (45) are installed to rack (42) lower extreme, push down branch chain (47) are installed to the lower extreme of square bar (45).

3. The stainless steel elbow pipe surface finishing device of claim 2, wherein: push down branch chain (47) include two-way cylinder (471), curved bar (472), slide bar (473), arc (474) and clamp plate (475), the lower extreme of square bar (45) install arc (474), clamp plate (475) are installed through the round pin shaft symmetry in the front and back both ends of arc (474), the arc wall has been seted up on clamp plate (475), slide bar (473) are installed through sliding fit's mode in the arc wall, install two-way cylinder (471) on the right-hand member inner wall of square bar (45), curved bar (472) are installed through flange symmetry to the output of two-way cylinder (471), curved bar (472) lower extreme fixed mounting is on slide bar (473).

4. The stainless steel elbow pipe surface finishing device of claim 1, wherein: actuating mechanism (29) including No. two motor (291), straight board (292), No. two gear (293) and internal tooth belt (294), straight board (292) install the right-hand member that lies in backup pad (21) on bottom plate (1), No. two motor (291) are installed to straight board (292) upper end, install No. two gear (293) on the output shaft of No. two motor (291), No. two gear (293) are installed on inserting roller (22) through the bearing, link to each other through internal tooth belt (294) between No. two gear (293).

5. The stainless steel elbow pipe surface finishing device of claim 1, wherein: the connecting device (3) comprises a fixed plate (31), a sliding plate (32), a second cylinder (33), a positioning disc (34), balls (35), a connecting rod (36) and a second telescopic rod (37), wherein the bottom plate (1) is provided with a sliding groove, the fixed plate (31) is installed at the left end of the bottom plate (1), the second cylinder (33) is installed on the outer wall of the right end of the fixed plate (31), the output end of the second cylinder (33) is provided with the sliding plate (32) through a flange, the sliding plate (32) is installed in the sliding groove in a sliding fit mode, the positioning disc (34) is evenly installed on the outer wall of the right end of the sliding plate (32) from front to back, the positioning disc (34) is provided with an omega-shaped groove along the circumferential direction thereof, the balls (35) are installed in the omega-shaped groove, one end of the connecting rod (36) is installed on the balls (35), a magnetic branch chain (38) is arranged on the second telescopic rod (37).

6. The stainless steel elbow pipe surface finishing device of claim 5, wherein: the magnetic branched chain (38) comprises a square block (381) and a magnet (382), the square block (381) is installed on the second telescopic rod (37), the magnet (382) is fixedly installed on the square block (381), and the square block (381) is connected with one another through a pin shaft.

7. The finishing method of a surface finishing device for stainless steel elbow pipe fittings according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:

s1, manually sleeving the stainless steel elbow pipe fitting to be processed on the insert roller (22);

s2, internal clamping: the first air cylinder (24) pushes the expansion disc (26) to move towards the left end, so that the expansion disc (26) pushes the expansion plate (27) to rotate, and the rubber pad (28) on the expansion plate (27) abuts against the inner wall of the stainless steel elbow pipe fitting;

s3, clamping the outer wall: the first motor (44) drives the arc plate (474) to align to the stainless steel elbow pipe fitting, the first bidirectional cylinder (23) drives the arc plate (474) to press the outer wall of the stainless steel elbow pipe fitting, and the second bidirectional cylinder (471) moves to enable the pressing plate (475) to press the outer wall of the stainless steel elbow pipe fitting;

s4, after the sliding plate (32) is pushed to move to a proper position by the second air cylinder (33), the magnetic branch chain (38) is manually stretched into the stainless steel elbow pipe fitting, so that the magnet (382) is tightly attracted on the inner wall of the stainless steel elbow pipe fitting;

s5, rotation: no. two motors (291) rotate and make the internal tooth belt (294) drive No. two gears (293) of evenly installing on inserting roller (22) and rotate, drive and insert roller (22) and rotate for stainless steel elbow pipe fitting rotates, processes stainless steel elbow pipe fitting.

Technical Field

The invention relates to the technical field of pipe fitting surface machining, in particular to a stainless steel elbow pipe fitting surface finish machining device and a finish machining method.

Background

Stainless steel elbow mainly used in the pipe installation connect the pipe fitting, in the pipe-line system, the elbow is the pipe fitting that changes the pipeline direction, divide according to the angle, there are 45 degrees and 90 degrees and 180 degrees the most commonly used, in addition according to the engineering needs still include other abnormal angle elbows such as 60 degrees, the material of elbow has cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non ferrous metal and plastics, wherein stainless steel elbow is different from carbon steel elbow's main material, usually increased high proportion Cr on the carbon steel basis, alloy such as Ni forms, the content proportion can reach more than 20%, its chemical composition that contains can keep the elbow surface can not rust for a long time, can not corroded, the mode that elbow and pipe connection have: direct welding (the most common way), flange connection, hot melt connection, electrofusion connection, screw connection, socket connection, and the like.

However, the following problems exist in the surface processing of the existing stainless steel elbow, that is, the surface processing of the traditional stainless steel elbow pipe needs to be manually clamped and rotated by using a tool, the rotating angle is not uniform, the quality of a product is affected, the surfaces of a plurality of stainless steel elbow pipes cannot be simultaneously processed, and the working efficiency is low; secondly, traditional machine adds man-hour to stainless steel elbow pipe fitting surface, can not process the stainless steel elbow of multiple model, and the stainless steel elbow pipe fitting easily takes place the centre gripping unstability and drops for the processing effect is not good, influences the processing progress, can realize intelligent processing to stainless steel elbow pipe fitting.

Disclosure of Invention

Technical problem to be solved

The invention provides a device and a method for finish machining the surface of a stainless steel elbow pipe fitting, which can solve the problems existing in the surface machining of the stainless steel elbow.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme that the surface finishing device for the stainless steel elbow pipe fitting comprises a bottom plate, a clamping device and a linking device, wherein the linking device is installed at the left end of the bottom plate, and the clamping device is installed at the right end of the bottom plate.

The clamping device comprises a supporting plate, an inserting roller, a first bidirectional cylinder, a first cylinder, a retention disc, an expansion plate and a rubber pad, wherein the supporting plate is fixedly arranged at the right end of a bottom plate, a driving mechanism is arranged on the outer wall of the right end of the supporting plate, the inserting roller is uniformly arranged on the outer wall of the left end of the supporting plate from front to back through a bearing, a cylindrical groove is formed in the inserting roller, a through hole is formed in the right end of the inserting roller, the first bidirectional cylinder is fixedly arranged on the inner wall of the right end of the cylindrical groove, the output end of the first bidirectional cylinder penetrates through the through hole and is provided with a tightening mechanism through a flange, the retention disc is fixedly arranged at the left end of the first bidirectional cylinder in the cylindrical groove, the first cylinder is arranged on the outer wall of the left end of the retention disc, the output end of the first, an expansion plate is connected in the square groove through a pin shaft, the right end of the expansion plate is abutted against the expansion disc, and a rubber pad is installed at the left end of the expansion plate.

During specific work, the stainless steel elbow pipe fitting sleeve to be processed is arranged on the inserting roller, the first air cylinder pushes the expansion disc to move leftwards, the expansion disc pushes the expansion plate to rotate, the rubber pad installed on the expansion plate is rotated to abut against the inner wall of the stainless steel elbow pipe fitting, the friction force of the rubber pad is utilized to clamp the inside of the stainless steel elbow pipe fitting, and the stainless steel elbow pipe fitting is prevented from sliding down when rotating.

Tightening mechanism include telescopic link, rack, a gear, a motor, square bar and connecting rod, a telescopic link pass through flange symmetric connection at the output of a two-way cylinder, install the connecting rod on the outer wall of a telescopic link, a motor is installed to the left end of connecting rod, install a gear on the output shaft of a motor, a rack with a gear engagement is installed to the left end of telescopic link, the square bar is installed to the rack lower extreme, the lower extreme of square bar is installed and is pushed down the branch chain.

The lower pressing branch chain comprises a two-way cylinder, a bent rod, a sliding rod, an arc plate and a pressing plate, the arc plate is installed at the lower end of the square rod, the pressing plate is installed at the front end and the rear end of the arc plate through pin shaft symmetry, an arc groove is formed in the pressing plate, the sliding rod is installed in the arc groove through a sliding fit mode, the two-way cylinder is installed on the inner wall of the right end of the square rod, the bent rod is installed at the output end of the two-way cylinder through flange symmetry, and the lower end of the bent rod is fixedly installed on the sliding rod.

When the concrete during operation, a motor rotates, drive a gear revolve, make the rack drive down press the branch chain and move when the arc aims at stainless steel elbow pipe fitting, the position of motor stall stability arc, a two-way cylinder drives the motion of crimple mechanism to stainless steel elbow pipe fitting centre of a circle, make the arc compress tightly the outer wall of stainless steel elbow pipe fitting, No. two-way cylinder drives the knee motion, make the slide bar slide in the arc wall when reaching suitable position, it compresses tightly the outer wall of stainless steel elbow pipe fitting to drive the clamp plate, the position of stable stainless steel elbow pipe fitting that can be better, make stainless steel elbow pipe fitting can not take place the landing and influence the quality of processing progress and processing man-hour.

The interlinkage device include and decide board, sliding plate, No. two cylinders, location disc, ball, connecting rod and No. two telescopic links, the bottom plate on seted up the spout, decide the board and install on the bottom plate left end, decide and install No. two cylinders on the board right-hand member outer wall, the sliding plate is installed through the flange to the output of No. two cylinders, the sliding plate is installed in the spout through sliding fit's mode, evenly install the location disc from the front to the back on the sliding plate right-hand member outer wall, the location disc is last to have seted up omega type groove along its circumference direction, install the ball in the omega type groove, the one end of connecting rod is installed on the ball, No. two telescopic links are installed to the other end of connecting.

The utility model discloses a stainless steel elbow pipe fitting, including magnetism branch chain, cylinder, sliding plate, magnet, the square is installed on No. two telescopic links, fixed mounting has magnet on the square, link to each other through the round pin axle between the square, concrete during operation, after clamping device presss from both sides tight stainless steel elbow pipe fitting, No. two cylinders promote the sliding plate to move to suitable position after, stretch into the magnetism branch chain in the stainless steel elbow pipe fitting, make the inner wall of magnet suction stainless steel elbow pipe fitting, when stainless steel elbow pipe fitting rotates, the ball of magnetism branch chain upper end rotates along the movement track of stainless steel elbow pipe fitting in omega type inslot, the elasticity of magnetism branch chain when rotating has been guaranteed to the flexible function of No. two telescopic links, make stainless steel elbow pipe fitting pivoted.

As a preferred technical scheme, the driving mechanism comprises a second motor, a straight plate, a second gear and an inner toothed belt, the straight plate is arranged on the bottom plate and located at the right end of the supporting plate, the second motor is arranged at the upper end of the straight plate, the second gear is arranged on an output shaft of the second motor and arranged on the inserting roller through a bearing, and the second gears are connected through the inner toothed belt.

In addition, the invention also provides a finish machining method of the stainless steel elbow pipe fitting surface finish machining device, which comprises the following steps:

s1, manually sleeving a stainless steel elbow pipe fitting to be processed on the insertion roller;

s2, internal clamping: the first cylinder pushes the expansion disc to move towards the left end, so that the expansion disc pushes the expansion plate to rotate, and the rubber pad on the expansion plate is tightly propped against the inner wall of the stainless steel elbow pipe fitting;

s3, clamping the outer wall: the first motor drives the arc plate to be aligned with the stainless steel elbow pipe fitting, the first bidirectional cylinder drives the arc plate to press the outer wall of the stainless steel elbow pipe fitting, and the second bidirectional cylinder moves to enable the pressing plate to press the outer wall of the stainless steel elbow pipe fitting;

s4, after the sliding plate is pushed to move to a proper position by the second air cylinder, the magnetic branched chain is manually stretched into the stainless steel elbow pipe fitting, so that the magnet is tightly attracted on the inner wall of the stainless steel elbow pipe fitting;

s5, rotation: no. two motor rotations make the internal tooth belt drive No. two gear revolve of evenly installing on inserting the roller, drive and insert the roller and rotate for stainless steel elbow pipe fitting rotates, processes stainless steel elbow pipe fitting.

(III) advantageous effects

1. The invention can solve the following problems in the surface processing of the existing stainless steel elbow, i.e. the traditional stainless steel elbow pipe fitting needs to be clamped and manually rotated by a manual tool in the surface processing, the rotating angle is not uniform, the product quality is influenced, the surfaces of a plurality of stainless steel elbow pipe fittings can not be processed at the same time, and the working efficiency is low; secondly, traditional machine adds man-hour to stainless steel elbow pipe fitting surface, can not process the stainless steel elbow of multiple model, and the stainless steel elbow pipe fitting easily takes place the centre gripping unstability and drops for the processing effect is not good, influences the processing progress, can realize intelligent processing to stainless steel elbow pipe fitting.

2. The connecting device and the clamping device designed by the invention are uniformly installed from front to back, the surfaces of a plurality of stainless steel elbow pipe fittings can be simultaneously processed under the driving of the driving mechanism, the working efficiency is improved, and the processing quality of products is greatly improved by uniform rotation.

3. The clamping device, the locking mechanism and the linking device are matched with each other, the clamping device clamps the interior of the stainless steel elbow pipe fitting during machining, the locking mechanism clamps the exterior of the stainless steel elbow pipe fitting, double clamping ensures that the stainless steel elbow pipe fitting cannot fall off during machining, the linking device ensures the stability of rotation when the stainless steel elbow pipe fitting rotates, the machining progress is accelerated, and different types of stainless steel elbow pipe fittings can be machined by adjusting the positions of the first bidirectional cylinder and the first telescopic rod.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the clamping assembly of the present invention;

FIG. 3 is a cross-sectional view of the clamping assembly of the present invention;

FIG. 4 is a schematic view of a depressed branched chain structure of the present invention;

FIG. 5 is a schematic view of a link assembly of the present invention;

fig. 6 is a schematic view of the driving mechanism of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 6, the surface finishing device for the stainless steel elbow pipe fitting comprises a bottom plate 1, a clamping device 2 and a linking device 3, wherein the linking device 3 is installed at the left end of the bottom plate 1, and the clamping device 2 is installed at the right end of the bottom plate 1.

The clamping device 2 comprises a supporting plate 21, an inserting roller 22, a first bidirectional cylinder 23, a first cylinder 24, a retention disc 25, an expansion disc 26, an expansion plate 27 and a rubber pad 28, the supporting plate 21 is fixedly arranged at the right end of the bottom plate 1, a driving mechanism 29 is arranged on the outer wall of the right end of the supporting plate 21, the inserting roller 22 is uniformly arranged on the outer wall of the left end of the supporting plate 21 from front to back through a bearing, a cylindrical groove is formed in the inserting roller 22, a through hole is formed in the right end of the inserting roller 22, the first bidirectional cylinder 23 is fixedly arranged on the inner wall of the right end of the cylindrical groove, a contracting mechanism 4 is arranged at the output end of the first bidirectional cylinder 23 through a flange after penetrating through the through hole, the retention disc 25 is fixedly arranged at the left end of the first bidirectional cylinder 23 in the cylindrical groove, the first cylinder 24 is arranged on the outer wall of the left, insert evenly seted up square groove along its circumferential direction on the roller 22, there is expansion board 27 square inslot through the round pin hub connection, and expansion board 27's right-hand member supports and leans on expansion disc 26, and rubber pad 28 is installed to expansion board 27's left end.

During specific work, the stainless steel elbow pipe fitting sleeve that will process is established on inserting roller 22, and cylinder 24 promotes expansion disc 26 and moves left for expansion disc 26 promotes expansion plate 27 and rotates, rotates the rubber pad 28 of installing on expansion plate 27 and supports tightly on the inner wall of stainless steel elbow pipe fitting, prevents that stainless steel elbow pipe fitting landing when rotating from carrying out the one-level to press from both sides tightly stainless steel elbow pipe fitting.

Tightening mechanism 4 include telescopic link 41, rack 42, a gear 43, a motor 44, square bar 45 and connecting rod 46, telescopic link 41 pass through the output of flange symmetric connection at a two-way cylinder 23, install connecting rod 46 on telescopic link 41's the outer wall, a motor 44 is installed to connecting rod 46's left end, install a gear 43 on motor 44's the output shaft, telescopic link 41's left end install with a gear 43 meshed rack 42, square bar 45 is installed to rack 42 lower extreme, push down branch chain 47 is installed to square bar 45's lower extreme.

Push down branched chain 47 include two-way cylinder 471, curved bar 472, slide bar 473, arc 474 and clamp plate 475, the lower extreme of square bar 45 install arc 474, clamp plate 475 is installed through round pin shaft symmetry in the front and back both ends of arc 474, the arc wall has been seted up on the clamp plate 475, slide bar 473 is installed through sliding fit's mode in the arc wall, install two-way cylinder 471 on the right-hand member inner wall of square bar 45, curved bar 472 is installed through flange symmetry to the output of two-way cylinder 471, curved bar 472 lower extreme fixed mounting is on slide bar 473.

During specific work, a motor 44 rotates and drives a gear 43 to rotate so that a rack 42 drives to press down a branched chain 47 to move, make arc 474 aim at stainless steel elbow pipe fitting, a motor 44 stop rotation makes the stable position of arc 474 aim at stainless steel elbow pipe fitting, a two-way cylinder 23 drives tightening mechanism 4 to move to the stainless steel elbow pipe fitting centre of a circle, make arc 474 compress tightly the outer wall of stainless steel elbow pipe fitting, No. two-way cylinder 471 drives curved bar 472 and when moving to suitable position, make slide bar 473 slide in the arc wall, drive clamp plate 475 compresses tightly the outer wall of stainless steel elbow pipe fitting, it is tight to carry out the second grade to stainless steel elbow pipe fitting.

The link device 3 include fixed plate 31, sliding plate 32, No. two cylinders 33, location disc 34, ball 35, connecting rod 36 and No. two telescopic links 37, bottom plate 1 on seted up the spout, fixed plate 31 is installed and is installed No. two cylinders 33 on bottom plate 1 left end, fixed plate 31 right-hand member outer wall, the sliding plate 32 is installed through the flange to the output of No. two cylinders 33, sliding plate 32 installs in the spout through sliding fit's mode, evenly install location disc 34 from front to back on the sliding plate 32 right-hand member outer wall, location disc 34 has seted up omega type groove along its circumferential direction on, ball 35 is installed to omega type inslot, the one end of connecting rod 36 is installed on ball 35, No. two telescopic links 37 are installed to the other end of connecting rod 36, install magnetism branch chain 38 on No. two telescopic links 37.

Magnetic branch chain 38 include square 381 and magnet 382, square 381 install on No. two telescopic links 37, fixed mounting has magnet 382 on the square 381, link to each other through the round pin axle between the square 381, when concrete during operation, after clamping device 2 presss from both sides tight stainless steel elbow pipe fitting, No. two cylinders 33 promote the sliding plate 32 and move to suitable position after, stretch into magnetic branch chain 38 in the stainless steel elbow pipe fitting, make magnet 382 inhale the inner wall of tight stainless steel elbow pipe fitting, when stainless steel elbow pipe fitting rotates, magnetic branch chain 38 rotates with stainless steel elbow pipe fitting, stability when stainless steel elbow pipe fitting rotates has been stabilized more.

Actuating mechanism 29 include No. two motors 291, straight board 292, No. two gears 293 and internal tooth belt 294, straight board 292 install the right-hand member that lies in backup pad 21 on bottom plate 1, No. two motors 291 are installed to straight board 292 upper end, install No. two gears 293 on No. two motors 291's the output shaft, No. two gears 293 pass through the bearing and install on inserting roller 22, link to each other through internal tooth belt 294 between No. two gears 293, during specific work, No. two motors 291 rotate and drive No. two gears 293 and rotate, make internal tooth belt 294 drive No. two gears 293 of evenly installing on inserting roller 22 and rotate, the drive inserts roller 22 and rotates, make stainless steel elbow pipe fitting rotate.

In addition, the application also comprises a finish machining method of the stainless steel elbow pipe fitting surface finish machining device, which comprises the following machining steps:

s1, manually sleeving the stainless steel elbow pipe fitting to be processed on the insert roller 22;

s2, internal clamping: the first air cylinder 24 pushes the expansion disc 26 to move towards the left end, so that the expansion disc 26 pushes the expansion plate 27 to rotate, and the rubber pad 28 on the expansion plate 27 is tightly pressed against the inner wall of the stainless steel elbow pipe fitting;

s3, clamping the outer wall: the first motor 44 drives the arc plate 474 to align with the stainless steel elbow pipe fitting, the first bidirectional cylinder 23 drives the arc plate 474 to press the outer wall of the stainless steel elbow pipe fitting, and the second bidirectional cylinder 471 moves to enable the pressing plate 475 to press the outer wall of the stainless steel elbow pipe fitting;

s4, after the sliding plate 32 is pushed by the second cylinder 33 to move to a proper position, the magnetic branch 38 is manually extended into the stainless steel elbow pipe fitting, so that the magnet 382 is tightly attracted on the inner wall of the stainless steel elbow pipe fitting;

s5, rotation: no. two motors 291 rotate and make the internal tooth belt 294 drive the rotation of No. two gears 293 evenly installed on inserting roller 22, drive and insert roller 22 and rotate for stainless steel elbow pipe fitting rotates, processes stainless steel elbow pipe fitting.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.