阅读说明：本技术 一种多棱曲面柱零件的加工设备 (Processing equipment for multi-edge curved surface column part ) 是由 杨义 肖淑芬 辛榕 刘正衡 赵恒� 罗康伟 郭畅 于 2021-06-29 设计创作，主要内容包括：本发明公开一种多棱曲面柱零件的加工设备,包括：支撑座,旋转平台,驱动装置,切削装置,夹持变位装置；旋转平台与支撑座转动连接,驱动装置驱动旋转平台转动；旋转平台上设有仿形板,仿形板外周间隔设有多个突起,突起边缘圆滑过渡；多个夹持变位装置间隔设置在旋转平台上且布置于同一圆周处；两个突起之间设有一个夹持变位装置；每个夹持变位装置包括夹持待加工零件的夹持部和驱动待加工零件步进翻转一定角度的、独立工作的拨动部；切削装置的刃口位于两个突起之间且在突起的推动下能远离待加工零件,并在复位件的作用下复位。本发明生产效率高,通过夹持变位装置能够适应不同产品尺寸的加工要求,满足产品多样性的需求。(The invention discloses a processing device of a multi-edge curved surface column part, which comprises: the device comprises a supporting seat, a rotating platform, a driving device, a cutting device and a clamping and shifting device; the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate; the rotary platform is provided with a profiling plate, the periphery of the profiling plate is provided with a plurality of bulges at intervals, and the edges of the bulges are in smooth transition; the clamping and position changing devices are arranged on the rotating platform at intervals and are arranged at the same circumference; a clamping position-changing device is arranged between the two bulges; each clamping and position changing device comprises a clamping part for clamping a part to be processed and a shifting part which drives the part to be processed to turn over a certain angle step by step and works independently; the cutting edge of the cutting device is positioned between the two bulges, can be far away from the part to be machined under the pushing of the bulges and is reset under the action of the resetting piece. The clamping and shifting device is high in production efficiency, can adapt to the processing requirements of different product sizes, and meets the requirement of product diversity.)

1. The utility model provides a processing equipment of many arriss curved surface post part which characterized in that includes:

the device comprises a supporting seat, a rotating platform, a driving device, a cutting device and a clamping and shifting device;

the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate;

the rotary platform is provided with a profiling plate, the periphery of the profiling plate is provided with a plurality of bulges at intervals, and the edges of the bulges are in smooth transition;

the clamping and position changing devices are arranged on the rotating platform at intervals and are arranged at the same circumference; a clamping displacement device is arranged between the two bulges;

each clamping and position changing device comprises a clamping part for clamping a part to be processed and a shifting part which drives the part to be processed to turn over a certain angle step by step and works independently;

the cutting device is arranged beside the supporting seat; the cutting edge of the cutting device is positioned between the two bulges, can be far away from the part to be machined under the pushing of the bulges and is reset under the action of the resetting piece.

2. The apparatus for processing a polygonal curved cylindrical part according to claim 1, wherein: the angle alpha of each overturn of the part to be processed is 360 degrees/n, and n is the number of the edges of the multi-edge curved surface column part.

3. The apparatus for processing a polygonal curved cylindrical part according to claim 2, wherein: the shifting part comprises a shifting lever, a ratchet wheel intermittent mechanism and an adjusting block fixed on the supporting seat; one end of the shifting rod is connected with the ratchet wheel intermittent mechanism, the other end of the shifting rod can be periodically contacted with the adjusting block, and the middle part of the shifting rod is connected with the rotating platform through a return spring; and when the deflector rod is contacted with the regulating block once, the ratchet clearance mechanism is stirred to rotate by an angle alpha, and the ratchet clearance mechanism drives the part to be processed on the clamping part to turn by the angle alpha.

4. The apparatus for processing a polygonal curved cylindrical part according to claim 3, wherein: the ratchet intermittent mechanism comprises a ratchet shell connected with the end part of the driving lever, a ratchet fixedly connected with the ratchet shell, a pawl matched with the ratchet, a non-return pawl for limiting the reverse movement of the ratchet and a pawl spring for resetting the pawl; the ratchet wheel is connected with the clamping mechanism through the synchronous mechanism; the ratchet wheel is provided with 360 degrees/alpha ratchet teeth.

5. The apparatus for processing a polygonal curved cylindrical part according to claim 4, wherein: the clamping mechanism comprises a base frame fixedly connected with the rotary platform, a fixed clamping plate fixed on one side of the base frame, and a movable clamping plate capable of sliding on the base frame, wherein a compression spring is arranged between the movable clamping plate and the base frame; the part to be processed is clamped between the fixed clamping plate and the movable clamping plate; the pawl is rotationally connected with the fixed clamping plate through a connecting shaft.

6. The apparatus for processing a polygonal curved cylindrical part according to claim 5, wherein: the synchronous mechanism comprises a driving synchronous wheel fixedly connected with the connecting shaft, a rotating thimble arranged on the fixed clamping plate and a driven synchronous wheel fixedly connected with the rotating thimble; and the synchronous belt is used for connecting the driving synchronous wheel and the driven synchronous wheel.

7. The apparatus for processing a polygonal curved cylindrical part according to claim 1, wherein: the driving mechanism comprises a motor arranged on the supporting seat, a driving gear connected with an output shaft of the motor, and a driven gear fixedly arranged on the rotating platform in a meshed mode with the driving gear.

8. The apparatus for processing a polygonal curved cylindrical part according to claim 1, wherein: the cutting device comprises a fixed upright post arranged beside the supporting seat, a swinging cross beam rotationally connected with the top of the fixed upright post, a cutting motor arranged at one end of the swinging cross beam, and a cutter connected with the output end of the cutting motor; a follower rod parallel to the fixed upright post is arranged in the middle of the swing cross beam; one end of the follower rod is connected with the swing cross beam, and the other end of the follower rod is connected with the side wall of the supporting seat through a tension spring; the cutting edge of the cutter is far away from the part to be processed when the protrusion pushes the follower rod, and is reset under the action of the tension spring.

9. The apparatus for processing a polygonal curved cylindrical part according to claim 1, wherein: the supporting seat top surface is equipped with annular guide, rotary platform bottom surface is equipped with a plurality of sliders, the slider be equipped with the spout of annular guide adaptation.

Technical Field

The invention belongs to the technical field of machining, and particularly relates to machining equipment for a multi-edge curved surface column part

Background

At present, in enterprise production, production equipment for machining a hexagonal curved surface column part (shown in figure 1) is mainly a profiling milling machine or a numerical control machine.

The Chinese patent 'double-station copying milling machine', an authorized bulletin number CN103302339B and an authorized bulletin date 2015.05.20 discloses a double-station copying milling machine, which comprises a frame, a front guide rail, a rear guide rail, a left guide rail, a right guide rail, a lifting operating mechanism and a machine head; a workbench is arranged on the frame, and a compaction cylinder is arranged on the workbench; a profile plate is arranged between the left guide rail and the right guide rail; the machine head comprises a milling cutter, a spindle box and a motor, and is arranged on the front guide rail and the rear guide rail and positioned above the workbench; the double-station profiling milling machine comprises a workbench, a lifting operating mechanism, an upper pneumatic transposition mechanism, a lower pneumatic transposition mechanism, a vertical guide rail, a lifting cylinder and an air spring, wherein the upper pneumatic transposition mechanism and the lower pneumatic transposition mechanism comprise vertical guide rails, the lifting cylinder and the air spring, the vertical guide rails are connected with a left guide rail and a right guide rail, the vertical guide rails, a front guide rail, a rear guide rail, the left guide rail and the right guide rail are perpendicular to each other, and the lifting cylinder and the air spring are arranged below the vertical guide rails.

The prior art generally only machines one part in a period of time, and changes in product size require re-manual fabrication of the source workpiece or re-numerical control programming, resulting in lower efficiencies in mass production.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide the processing equipment for the multi-edge curved-surface column part, which is used for processing a plurality of parts in the same period of time, has high production efficiency and can meet the production requirements of different product sizes.

In order to achieve the above object, the present invention provides a device for processing a polygonal curved cylindrical part, comprising:

the device comprises a supporting seat, a rotating platform, a driving device, a cutting device and a clamping and shifting device;

the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate;

the rotary platform is provided with a profiling plate, the periphery of the profiling plate is provided with a plurality of bulges at intervals, and the edges of the bulges are in smooth transition;

the clamping and position changing devices are arranged on the rotating platform at intervals and are arranged at the same circumference; a clamping displacement device is arranged between the two bulges;

each clamping and position changing device comprises a clamping part for clamping a part to be processed and a shifting part which drives the part to be processed to turn over a certain angle step by step and works independently;

the cutting device is arranged beside the supporting seat; the cutting edge of the cutting device is positioned between the two bulges, can be far away from the part to be machined under the pushing of the bulges and is reset under the action of the resetting piece.

Preferably, the angle α of each turn of the part to be machined is 360 °/n, and n is the number of edges of the polygonal curved-surface cylindrical part.

Preferably, the shifting part comprises a shifting lever, a ratchet intermittent mechanism and an adjusting block fixed on the supporting seat; one end of the shifting rod is connected with the ratchet wheel intermittent mechanism, the other end of the shifting rod can be periodically contacted with the adjusting block, and the middle part of the shifting rod is connected with the rotating platform through a return spring; and when the deflector rod is contacted with the regulating block once, the ratchet clearance mechanism is stirred to rotate by an angle alpha, and the ratchet clearance mechanism drives the part to be processed on the clamping part to turn by the angle alpha.

Preferably, the ratchet intermittent mechanism comprises a ratchet housing connected with the end of the shift lever, a ratchet fixedly connected with the ratchet housing, a pawl adapted to the ratchet, a non-return pawl for limiting reverse movement of the ratchet, and a pawl spring for resetting the pawl; the ratchet wheel is connected with the clamping mechanism through the synchronous mechanism; the ratchet wheel is provided with 360 degrees/alpha ratchet teeth. The shifting rod and the adjusting block act once, the shifting rod moves upwards by the height change of the adjusting block to drive the ratchet shell to rotate by an alpha angle, at the moment, the ratchet wheel synchronously rotates by the alpha angle, the stroke of the ratchet wheel is limited by the pawl and the non-return pawl, and meanwhile, the synchronous mechanism is utilized to actuate a part to be processed on the clamping mechanism to turn over the alpha angle.

Still further preferably, the clamping mechanism comprises a base frame fixedly connected with the rotary platform, a fixed clamping plate fixed on one side of the base frame, and a movable clamping plate capable of sliding on the base frame, and a compression spring is arranged between the movable clamping plate and the base frame; the part to be processed is clamped between the fixed clamping plate and the movable clamping plate; the pawl is rotationally connected with the fixed clamping plate through a connecting shaft.

Preferably, the synchronizing mechanism comprises a driving synchronizing wheel fixedly connected with the connecting shaft, a rotating thimble arranged on the fixed clamping plate and a driven synchronizing wheel fixedly connected with the rotating thimble; and the synchronous belt is used for connecting the driving synchronous wheel and the driven synchronous wheel.

Preferably, the driving mechanism comprises a motor installed on the supporting seat, a driving gear connected with an output shaft of the motor, and a driven gear fixedly installed on the rotating platform in a meshed manner with the driving gear.

Preferably, the cutting device comprises a fixed upright post arranged beside the supporting seat, a swinging cross beam rotationally connected with the top of the fixed upright post, a cutting motor arranged at one end of the swinging cross beam, and a cutter connected with the output end of the cutting motor; a follower rod parallel to the fixed upright post is arranged in the middle of the swing cross beam; one end of the follower rod is connected with the swing cross beam, and the other end of the follower rod is connected with the side wall of the supporting seat through a tension spring; the cutting edge of the cutter is far away from the part to be processed when the protrusion pushes the follower rod, and is reset under the action of the tension spring.

Preferably, the supporting seat top surface is equipped with annular guide, rotary platform bottom surface is equipped with a plurality of sliders, the slider be equipped with the spout of annular guide adaptation.

The invention has the beneficial effects that: the invention can continuously process six workpieces by one-time feeding, and has high production efficiency; the clamping and shifting device can adapt to the processing requirements of different product sizes, and the requirement of product diversity is met.

Drawings

FIG. 1 is a perspective view of a part to be machined

FIG. 2 is a perspective view of the present invention

FIG. 3 is a schematic top view of the present invention

FIG. 4 is a schematic view of the structure of the cutting device of the present invention

FIG. 5 is a schematic view of the clamping and position-changing device of the present invention

FIG. 6 is a side view of the clamping indexing device of the present invention

FIG. 7 is a partially cut-away perspective view of the present invention

FIG. 8 is a schematic enlarged view of a portion of FIG. 2 at A

Detailed Description

The technical solutions of the present invention (including the preferred ones) are further described in detail by means of fig. 2 to 8 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

As shown in fig. 2 and 8, the present invention provides a device for processing a multi-edge curved-surface column part, comprising: a supporting seat 001, a rotating platform 002, a driving device, a cutting device 100 and a clamping displacement device 200;

the supporting seat 001 is used as an annular base of the equipment and is fixed; install annular guide rail 010 above bearing 001, be equipped with the slider 011 with annular guide rail 010 adaptation on the rotary platform 002, see fig. 7 and show, rotary platform 002 rotates with bearing 001 through slider 011 and annular guide rail 010 and is connected, be equipped with driven gear 006 and imitative board 003 on the rotary platform 002, drive arrangement is including establishing gear motor 009 on bearing 001, driving gear 007 is connected to the output of gear motor 009, it is rotatory under gear motor 009 drives when driving gear 007, begin rotatory rotary platform 002 of drive and the whole rotary motion of imitative board 003 of drive through gear engagement driven gear 006.

A plurality of gripping and displacing means 200 are fixed on the rotary platform 002 at intervals and arranged at the same circumference to rotate with the rotary platform 002, and each gripping and displacing means 200 is installed between the connected protruding portions (flat ring portion) of the profile plate 003, as shown in fig. 3.

Each clamping and position changing device comprises a clamping part for clamping a part to be processed and a shifting part which drives the part to be processed to turn over a certain angle step by step and works independently; the angle alpha of each overturn of the part to be processed is 360 degrees/n, n is the number of the edges of the multi-edge curved surface column part, in the example, n is 6 degrees, and alpha is 60 degrees. The toggle part comprises a toggle rod 210, a ratchet intermittent mechanism 300 and an adjusting block 004 fixed on the supporting seat 001; one end of the shifting lever 210 is connected with the ratchet intermittent mechanism 300, the other end of the shifting lever can be periodically contacted with the adjusting block 004, and the middle part of the shifting lever is connected with the rotating platform 002 through the reset spring 209; when the shift lever 210 contacts the adjusting block 004 once, the shift lever shifts the ratchet clearance mechanism 300 to rotate by an angle alpha, and the ratchet clearance mechanism 300 drives the part to be processed on the clamping part to turn by the angle alpha.

The adjusting block 004 is fixedly arranged on the supporting seat 001, and is shown in fig. 7 and 8. And when each clamping and position changing device 200 rotates one circle along with the rotating platform 002, the shifting rod 210 of the clamping and position changing device 200 can act with the adjusting block 004 once, and the shifting rod 210 moves upwards due to the height change of the adjusting block 004.

The ratchet intermittent mechanism 300 comprises a ratchet housing 305 connected with the end of the shift lever 210, a ratchet 302 fixedly connected with the ratchet housing 305, a pawl 304 matched with the ratchet 302, a check pawl 307 for limiting the reverse movement of the ratchet 302, and a pawl spring 303 for resetting the pawl 304; the ratchet 302 is connected with the clamping mechanism through a synchronizing mechanism; the ratchet 302 is provided with 360/a ratchet teeth, in this example 6 ratchet teeth. The shifting rod 210 and the adjusting block 004 act once, the shifting rod moves upwards due to the height change of the adjusting block so as to drive the ratchet shell to rotate by an angle alpha, at the moment, the ratchet wheel synchronously rotates by the angle alpha, the stroke of the ratchet wheel is limited by the pawl and the non-return pawl, and meanwhile, the synchronous mechanism is utilized to actuate a part to be processed on the clamping mechanism to turn over by the angle alpha.

In the internal structure of the clamping and displacing device 200, a shift lever 210 is fixedly connected with a ratchet housing 305, and a pawl 304 and a pawl spring 303 are fixedly arranged in the ratchet housing 305; as shown in fig. 6, the ratchet 302 is coaxially coupled to the driving synchronizing wheel 301 through a connecting shaft 306, and the driving synchronizing wheel 301 performs power transmission with the driven synchronizing wheel 206 through the timing belt 207. And the driven synchronizing wheel 206 is connected to the rotating shaft 204. Therefore, when the ratchet 302 rotates a certain angle, the rotating shaft 204 will finally hold the workpiece and rotate the same angle.

Due to the height change of the adjusting block 004, the shift lever 210 moves upwards as shown by the arrow in fig. 6, the shift lever 210 moves upwards to enable the ratchet housing 305 to move clockwise (shown), the clockwise movement of the ratchet housing 305 enables the pawl 304 fixedly installed inside the ratchet housing to move clockwise synchronously, and the ratchet 302 is not fixed relative to the pawl 304. In this example, the lever 210 and the adjusting block 004 act once, the designed height value of the adjusting block 004 will make the lever 210 move upwards to drive the ratchet housing 305 to move clockwise by 60 degrees, the pawl 304 installed in the ratchet housing 305 must rotate clockwise by 60 degrees, while in this example, the ratchet 302 has 6 ratchet teeth uniformly distributed, the angle between the ratchet teeth is 60 degrees, therefore, the pawl 304 must rotate clockwise by 60 degrees synchronously, and must go over one ratchet tooth, when the ratchet housing 305 moves clockwise, the curved surface of the pawl 304 rotating with the curved surface of the ratchet tooth will drive the ratchet 302 to have a clockwise rotation tendency, but because the existence of the check pawl 307 hinders the clockwise movement of the ratchet 302, the ratchet 302 has only the possibility of rotating counterclockwise as shown in 6. Therefore, the curved surface of the pawl 304 is in contact with the curved surface of the ratchet tooth for a high degree and cannot drive the ratchet wheel 302 to rotate clockwise. Due to the curved surface characteristic of the pawl 304, the pawl spring 303 is compressed, so that the pawl 304 rotates clockwise and lifts upwards simultaneously, curved surface extrusion does not exist after bypassing ratchets, the pawl spring 303 resets and rebounds and the action of the return spring 209, the ratchet housing 305 moves anticlockwise as a result of the action, the pawl 304 stirs one ratchet tooth anticlockwise to move, the ratchet 302 also rotates anticlockwise by 60 degrees, and finally the rotating shaft 204 clamps a workpiece and rotates by the same 60 degrees.

The clamping mechanism comprises a base frame 201 fixedly connected with the rotating platform 002, a fixed clamping plate 205 fixed on one side of the base frame 201, and a movable clamping plate 203 capable of sliding on the base frame 201, wherein a compression spring 202 is arranged between the movable clamping plate 203 and the base frame 201; the part to be processed is clamped between the fixed clamping plate 205 and the movable clamping plate 203; the pawl 304 is rotatably connected to the stationary jaw 205 by a connecting shaft 306.

The cutting device 100 comprises a fixed upright post 101 arranged beside a supporting seat 001, a swing beam 102 rotatably connected with the top of the fixed upright post 101, a cutting motor 103 arranged at one end of the swing beam 102, and a cutter 104 connected with the output end of the cutting motor 103; a follower rod 105 parallel to the fixed upright 101 is arranged in the middle of the swing cross beam 102; one end of the follower rod 105 is connected with the swing beam 102, and the other end of the follower rod is connected with the side wall of the supporting seat 001 through a tension spring 005; the cutting edge of the cutter 104 is away from the part to be machined when the protrusion pushes the follower bar 105, and is reset by the tension spring 005.

The above analysis shows that the clamping and displacing device 200 has two functions:

1. workpieces with different lengths can be clamped and fastened in the machining process; due to the elastic compression of the compression spring 202, the clamping distance between the movable clamp plate 203 and the fixed clamp plate 205 is elastically adjustable, and can adapt to workpieces with different lengths;

2. in the machining process, the workpiece can rotate by 60 degrees only by the action of the deflector rod 210 and the adjusting block 004 once.

The cutting apparatus 100 is installed outside the supporting base 001, and the follower rod 105 is flexibly connected to the supporting base 001 by a tension spring 005. The cutting motor 103 is connected with a cutter 104 and is arranged on the swinging beam 102, the swinging beam 102 is arranged on the fixed upright post 101 and can rotate around the fixed upright post 101 when no external force is restrained. As shown in fig. 2 and 3, since the protrusions and the flat ring portions of the profile plate 003 are alternately arranged, when the profile plate 003 rotates clockwise along with the rotary platform 002, the protrusions and the flat ring portions alternately act on the follower rods 105: when the protrusion portion acts on the follower rod 105, the swinging beam 102 swings away from the rotating platform 002 in the direction of arrow 1 in fig. 3 due to the extrusion of the protrusion portion on the follower rod 105, and the tool 104 mounted on the swinging beam 102 also moves away from the rotating platform 002, so that the tool 104 cannot process the workpiece mounted on the clamping and displacing device 200, and the tension spring 005 is in a tension state; as the rotary platform 002 rotates, the protruding portion is far away from the follower rod 105 and the flat ring portion starts to approach the follower rod 105, the swing beam 102 is turned to approach the rotary platform 002 in the direction of arrow 2 in fig. 3 due to the rebound action of the tension spring 005, and the clamping and displacing device 200 is installed at the flat ring portion of the profile plate 003, so that the tool 104 installed on the swing beam 102 also approaches the rotary platform 002, and the tool 104 can process the workpiece installed on the clamping and displacing device 200.

The working process is as follows:

1. the workpiece blank is arranged on the clamping and position changing device 200, and the speed reducing motor 009 and the cutting motor 103 are started to drive the driving gear 007 and the cutter 104 to rotate;

2. due to gear engagement transmission, the driving gear 007 drives the driven gear 006 to start to rotate, and further drives the rotating platform 002, the profile plate 003 and the clamping and position changing devices 200 arranged on the rotating platform 002 to integrally rotate;

3. when one clamping and displacing device 200 rotates until the shift lever 210 of the clamping and displacing device is contacted with the regulating block 004 fixedly arranged on the supporting seat 001 once, the workpiece rotates by 60 degrees along the self rotating shaft and then continues to rotate along the horizontal direction of the rotating platform 002;

4. when the horizontal rotation continues, the flat ring portion of the profile plate 003 is close to the follower rod 105, the swinging beam 102 and the tool 104 mounted thereon in rotation will be close to and cut the workpiece blank held by the holding and displacing device 200 mounted at the flat ring portion of the profile plate 003 just by the resilience of the tension spring 005. In the cutting process, the workpiece blank is driven by the rotating platform 002 to rotate all the time, so that the machined surface after cutting is a curved surface;

5. with the rotation of the rotary platform 002, the flat ring part is far away from the follower rod 105 and the protruding part is close to the follower rod 105, the extrusion of the follower rod 105 by the protruding part makes the swing beam 102 far away from the rotary platform 002, the cutter 104 mounted on the swing beam 102 is also far away from the rotary platform 002, and the clamping displacement device 200 is not mounted at the protruding part, so the cutter 104 is not needed to be cut and processed, and the tension spring 005 is in a stretching state;

6. repeating the steps 3, 4 and 5 in sequence, and after the rotating platform 002 rotates for a circle, the cutter 104 sequentially performs primary curved surface processing on all workpiece blanks clamped by the clamping and shifting device 200;

7. since the present example is described with respect to processing a hexagonal curved surface column part, and the deflector rod 210 and the adjusting block 004 act once, the workpiece rotates by 60 degrees, so that only after the rotating platform 002 rotates for six weeks, all workpiece blanks clamped on the clamping and displacing device 200 can be completely processed into the required hexagonal curved surface column part;

8. after the rotary platform 002 completes six rotations, the workpiece blank is processed into a hexagonal curved surface column part, and the machine is stopped for discharging.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.