阅读说明：本技术 一种cnc数控加工中心辅助工装夹具 (CNC numerical control machining center auxiliary fixtures anchor clamps ) 是由 钱红 于 2021-09-02 设计创作，主要内容包括：本发明涉及CNC数控加工中心技术领域,具体涉及一种CNC数控加工中心辅助工装夹具,包括基座和加工单元,所述基座上端中心处开设有放置槽,加工单元设置在基座上；本发明能够解决以下问题：一、传统的数控加工中心在对工件进行固定时,多是在基座上设置固定柱,使其配合工件的预留孔对工件进行固定处理,工件在加工时易出现晃动,缺乏稳定性,从而影响固定效果；二、数控加工中心在对工件进行固定时,大部分是配套使用,无法固定不同大小的工件,因此需要对数控中心的固定装置进行频繁拆卸和更换,增加了工作量,且影响整体工作效率。(The invention relates to the technical field of CNC (computerized numerical control) machining centers, in particular to an auxiliary tool clamp of a CNC machining center, which comprises a base and a machining unit, wherein a placing groove is formed in the center of the upper end of the base, and the machining unit is arranged on the base; the present invention can solve the following problems: firstly, when a workpiece is fixed by a traditional numerical control machining center, a fixed column is mostly arranged on a base to be matched with a reserved hole of the workpiece to fix the workpiece, and the workpiece is easy to shake and lack of stability during machining, so that the fixing effect is influenced; when the workpiece is fixed by the numerical control machining center, most of the workpieces are used in a matched manner, and workpieces of different sizes cannot be fixed, so that the fixing device of the numerical control center needs to be frequently disassembled and replaced, the workload is increased, and the overall working efficiency is influenced.)

1. The utility model provides a CNC numerical control machining center assists frock clamp, includes base (1) and processing unit (2), its characterized in that: base (1) upper end center department has seted up standing groove (11), and processing unit (2) set up on base (1), wherein:

the lower end of the base (1) is provided with a feed opening (12) communicated with the placing groove (11), four corners at the upper end of the base (1) are respectively in threaded connection with a locking screw through threaded holes, an annular sliding groove (13) is formed in the base (1), a circular groove (14) communicated with the annular sliding groove (13) is formed in the right side of the annular sliding groove (13), a rotating hole (15) is formed in the right end of the circular groove (14), a spline groove (16) is formed in the middle of the rotating hole (15), a abdicating groove (17) is formed in the right side of the spline groove (16), limiting sliding grooves (18) communicated with the annular sliding groove (13) are formed in the circumferential direction at equal intervals along the upper end of the annular sliding groove (13), the upper end of each limiting sliding groove (18) is provided with a sliding groove (19) communicated with the limiting sliding groove, and the other end of each sliding groove (19) is communicated with the placing groove (11);

the processing unit (2) comprises a bearing block (21), a fixed cylinder (22), a processing cutter (23), an adjusting assembly (24), a clamping assembly (25) and a replacing assembly (26), wherein: the bearing block (21) is located above the placing groove (11), the fixed cylinder (22) is installed at the lower end of the bearing block (21), the machining tool (23) is arranged at the telescopic end of the fixed cylinder (22), the adjusting assembly (24) is rotatably arranged in the rotating hole (15), the clamping assembly (25) is installed in the annular sliding groove (13), and the replacing assembly (26) is arranged in the clamping assembly (25).

2. The CNC machining center auxiliary tooling fixture of claim 1, wherein: the adjustment assembly (24) comprises a telescopic shaft (241), a rotary disc (242) and a bevel gear (243), wherein: the telescopic shaft (241) is rotatably arranged in the rotating hole (15), a rotating disc (242) is arranged on one side, away from the circular groove (14), of the telescopic shaft (241), and a bevel gear (243) rotatably arranged in the circular groove (14) is fixedly arranged at one end, close to the circular groove (14), of the telescopic shaft (241).

3. The CNC machining center auxiliary tooling fixture of claim 2, wherein: the outer wall of the middle part of the telescopic shaft (241) is fixedly sleeved with a spline (244) matched with the spline groove (16).

4. The CNC machining center auxiliary tooling fixture of claim 1, wherein: the clamping assembly (25) comprises an annular plate (251), a linkage groove (252), a limiting pin (253), a telescopic swing rod (254), a linkage pin (255), an execution block (256), a reset spring (257) and a clamping plate (258), wherein: the annular plate (251) is rotatably arranged in the annular sliding groove (13), a linkage groove (252) is formed in the upper end of the annular plate (251), a limiting pin (253) is fixedly arranged in the limiting sliding groove (18), a telescopic swing rod (254) is rotatably sleeved on the outer side of the limiting pin (253), the lower end of the telescopic swing rod (254) is hinged with a linkage pin (255) which is slidably arranged in the linkage groove (252), the upper end of the telescopic swing rod (254) is hinged with an execution block (256) which is slidably arranged in the sliding groove (19), one side of the execution block (256) far away from the placing groove (11) is connected with the sliding groove (19) through a reset spring (257), a fixing groove (2561) is formed in the execution block (256), one side of the fixing groove (2561) close to the placing groove (11) is provided with a push groove (2562), connecting holes (2563) are symmetrically formed in the front and back of the push groove (2562), and the clamping plate (258) is clamped on the execution block (256) through a mounting groove (2581), and the inner wall of the mounting groove (2581) is provided with a limiting hole (2582).

5. The CNC machining center auxiliary tooling fixture of claim 4, wherein: and fixed teeth (2511) meshed with the bevel gear (243) are arranged on the upper side of the outer wall of the annular plate (251) at equal intervals in the circumferential direction.

6. The CNC machining center auxiliary tooling fixture of claim 4, wherein: the linkage groove (252) is a star-shaped groove, and corners of the linkage groove (252) are all arc-shaped structures.

7. The CNC machining center auxiliary tooling fixture of claim 4, wherein: and the opposite ends of the clamping plate (258) are respectively provided with a fixed rubber pad (2583) for increasing the friction force.

8. The CNC machining center auxiliary tooling fixture of claim 4, wherein: the replacement assembly (26) comprises a push cylinder (261), a tapered block (262), an insert rod (263) and a retraction spring (264), wherein: push cylinder (261) set up in fixed slot (2561), push cylinder (261) flexible end is installed and is slided the toper piece (262) that sets up in push groove (2562), and inserted bar (263) slide and set up in connecting hole (2563), and inserted bar (263) opposite side all is connected with push groove (2562) through shrink spring (264), and inserted bar (263) slip setting mutually the back of the body in spacing hole (2582).

Technical Field

The invention relates to the technical field of CNC (computer numerical control) machining centers, in particular to an auxiliary tool clamp of a CNC machining center.

Background

The numerical control machining center is one of numerical control machines which have the highest yield and are widely applied in the world at present, and when the numerical control machining center is used for machining a workpiece, the workpiece needs to be limited and fixed through an auxiliary tool clamp so as to ensure the machining quality of the workpiece.

However, the following problems exist in fixing the workpiece: when fixing the workpiece, the traditional numerical control machining center mostly sets the fixing columns on the base, so that the reserved holes of the workpiece matched with the traditional numerical control machining center are used for fixing the workpiece, the workpiece is easy to shake during machining, and stability is lacked, so that the fixing effect is influenced.

When the numerical control machining center fixes the workpieces, the application range is limited, and when the workpieces of different sizes are fixed, the fixing devices of the numerical control center need to be frequently disassembled and replaced, so that the workload is increased, and the overall working efficiency is influenced.

Disclosure of Invention

In order to achieve the above object, the invention specifically adopts the following technical scheme that the auxiliary tool clamp for the numerical control machining center comprises a base and a machining unit, wherein a placing groove is formed in the center of the upper end of the base, and the machining unit is arranged on the base, wherein: the base is of a detachable structure, a feed opening communicated with the placing groove is formed in the lower end of the base, locking screws are connected to four corners of the upper end of the base through threaded holes in a screwed mode, the base is convenient to detach and install through the locking screws matching with the threaded holes, an annular sliding groove is formed in the base, a circular groove communicated with the annular sliding groove is formed in the right side of the annular sliding groove, a rotating hole is formed in the right end of the circular groove, a spline groove is formed in the middle of the rotating hole, a abdicating groove is formed in the right side of the spline groove, limiting sliding grooves communicated with the annular sliding groove are formed in the upper end of the annular sliding groove at equal intervals in the circumferential direction, a sliding groove communicated with the limiting sliding groove is formed in the upper end of the limiting sliding groove, and the other end of the sliding groove is communicated with the placing groove; when the machine works, the base is assembled through the locking screws matched with the threaded holes, and then the base is installed and fixed on the machining center.

The processing unit includes bearing block, fixed cylinder, processing cutter, adjusting part, centre gripping subassembly and change subassembly, wherein: the supporting block is positioned above the placing groove, the upper end of the supporting block is connected with the machining center, the lower end of the supporting block is provided with a fixed cylinder, the telescopic end of the fixed cylinder is provided with a machining cutter, the adjusting component is rotatably arranged in the rotating hole, the clamping component is arranged in the annular sliding groove, and the replacing component is arranged in the clamping component; during specific work, a worker installs a workpiece in the placing groove, the workpiece with different sizes is clamped and fixed through the clamping component in a matching mode, the stability of the workpiece during machining is ensured, the workpiece with different shapes can be clamped and fixed through the replacement component, the fixed cylinder is started at the moment, the fixed cylinder drives the machining tool to abut against the workpiece according to machining requirements, and the machining tool can be matched with a machining center to process the workpiece according to the machining requirements.

Preferably, the adjusting assembly comprises a telescopic shaft, a rotary disc and a bevel gear, wherein: the telescopic shaft is rotatably arranged in the rotating hole, a rotating disc is arranged on one side of the telescopic shaft, which is far away from the circular groove, a bevel gear rotatably arranged in the circular groove is fixedly arranged at one end of the telescopic shaft, which is close to the circular groove, and the bevel gear is meshed with the fixed teeth; when the clamping assembly is in specific work, a worker drives the telescopic shaft to rotate by rotating the rotating disc so as to drive the bevel gear to rotate, the purpose of adjusting the clamping assembly is achieved by transmission between the bevel gear and the fixed teeth, after the adjustment is completed, the worker presses the telescopic shaft into the rotating hole through the rotating disc, at the moment, the meshing state of the bevel gear and the fixed teeth is not changed, the telescopic shaft drives the spline to be clamped in the spline groove so as to limit the telescopic shaft, the condition that the bevel gear continues to rotate is further avoided, and the fixing effect of the clamping assembly is enhanced; after work is completed, a worker extracts the spline from the spline groove through the rotating disc matched with the telescopic shaft, so that the limiting effect on the telescopic shaft is eliminated, the telescopic shaft is reversely rotated, the telescopic shaft drives the bevel gear to reversely rotate, and the bevel gear drives the clamping assembly to reset.

Preferably, the outer wall of the middle part of the telescopic shaft is fixedly sleeved with a spline matched with the spline groove.

Preferably, the centre gripping subassembly includes annular plate, linkage groove, spacer pin, flexible pendulum rod, linkage round pin, carries out piece, reset spring and grip block, wherein: the annular plate is rotatably arranged in the annular sliding groove, and the upper end of the annular plate is provided with a linkage groove; spacer pin fixed mounting is in spacing spout, flexible pendulum rod rotates the cover and establishes in the spacer pin outside, and flexible pendulum rod lower extreme articulates there is the universal driving pin that slides the setting in the universal driving groove, flexible pendulum rod upper end articulates there is the execution piece that slides the inslot, but execution piece is upper and lower split structure, and the execution piece is kept away from standing groove one side and is connected with the groove that slides through reset spring, the inside fixed slot of having seted up of execution piece, the fixed slot is close to standing groove one side and has seted up the promotion groove, and the symmetry has seted up the connecting hole around the promotion groove, the grip block passes through the mounting groove joint on executing the piece, and mounting groove inner wall has seted up spacing hole.

Preferably, the upper side of the outer wall of the annular plate is provided with fixing teeth at equal intervals in the circumferential direction.

Preferably, the linkage groove is a star-shaped groove facilitating reciprocating sliding of the linkage pin, and corners of the linkage groove are all arc-shaped structures.

Preferably, the ends of the clamping plates, which are not in contact with the execution block, are provided with fixed rubber pads for increasing friction force; firstly, a clamping plate is clamped on an execution block through a mounting groove by a worker, the clamping plate is locked and fixed through a replacement assembly, then the annular plate rotates in the circumferential direction under the matching action of fixed teeth and a bevel gear, the annular plate drives a linkage pin to slide through a linkage groove, when the linkage pin slides to the peak of the linkage groove, the linkage pin moves to one side of a limiting sliding groove far away from a discharging opening, at the moment, the linkage pin drives the execution block and the clamping plate to move inwards through a telescopic swing rod in a matching mode with a limiting pin, and the clamping plate is matched with a fixing rubber pad to clamp and fix the workpiece in the circumferential direction so as to enhance the fixing effect; after the work is finished, bevel gear reverse rotation for bevel gear drives annular plate reverse rotation through fixed tooth, and the annular plate drives the linkage round pin through the linkage groove and slides, and when the linkage round pin slided to the ripples millet in linkage groove, the linkage round pin removed to one side that spacing spout is close to the feed opening, and the linkage round pin drives execution block and grip block through flexible pendulum rod cooperation reset spring and resets this moment, thereby eliminates the fixed effect to the work piece, so that the workman takes off the work piece.

Preferably, the replacement assembly comprises a push cylinder, a tapered block, an insert rod and a retraction spring, wherein: the push cylinder is arranged in the fixed groove, the telescopic end of the push cylinder is provided with a conical block which is arranged in the push groove in a sliding manner, the inserted bar is arranged in the connecting hole in a sliding manner, the opposite sides of the inserted bar are connected with the push groove through contraction springs, and the opposite sides of the inserted bar are arranged in the limiting holes in a sliding manner; when the clamping device works specifically, after a clamping plate is clamped on an execution block through a mounting groove by a worker, a pushing cylinder is started, the pushing cylinder drives a conical block to move towards one side close to the clamping plate, and the conical block extrudes the insertion rods on the front side and the rear side outwards to enable the insertion rods to be inserted into the limiting holes so as to lock and fix the clamping plate; when the clamping plate needs to be replaced, the pushing cylinder drives the conical block to reset, extrusion force of the conical block to the insertion rod is eliminated, the insertion rod is enabled to reset under the action of the contraction spring, the clamping plate can be taken down by a worker at the moment, then the clamping plate needing to be installed is clamped at the opposite end of the execution block, the pushing cylinder is further enabled to be matched with the insertion rod through the conical block to lock and fix the clamping plate, the clamping plate matched with the clamping cylinder can be replaced according to workpieces with different shapes, and the applicability of the clamping device is improved.

Compared with the prior art, the invention has the beneficial effects that: 1. the processing unit provided by the invention can clamp and fix workpieces with different sizes by matching the clamping component with the adjusting component, thereby avoiding the condition of frequent disassembly of the fixing device, reducing the workload, discharging the scraps generated by processing through the feed opening and avoiding the condition that the scraps are adhered to the processing tool.

2. The adjusting assembly provided by the invention can adjust the clamping assembly by matching the telescopic shaft with the bevel gear so that the clamping assembly can clamp and fix a workpiece, and after the clamping assembly is adjusted, the telescopic shaft drives the spline to be clamped in the spline groove so as to limit the rotation direction of the telescopic shaft, so that the condition that the bevel gear rotates is avoided, and the fixing effect of the clamping assembly is enhanced.

3. According to the clamping assembly, the annular plate is matched with the linkage groove to drive the linkage pin to slide, the linkage pin is matched with the limiting pin through the telescopic swing rod to drive the execution block and the clamping plate to move inwards, and the clamping plate is matched with the fixing rubber mat to circumferentially clamp and fix a workpiece, so that the fixing effect is enhanced.

4. The replacing component provided by the invention has the advantages that the conical block is driven by the pushing cylinder to retract and reset so as to eliminate the extrusion force of the conical block on the inserted rod, the inserted rod retracts and resets under the action of the retraction spring, the clamping plate can be replaced at the moment, the conical block is driven by the pushing cylinder to be matched with the inserted rod to lock and fix the clamping plate, so that the clamping plate matched with the workpiece can be replaced according to different shapes of the workpiece, and the applicability of the replacing component is improved.

Drawings

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

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a partial schematic view of the adjustment assembly of the present invention.

Fig. 4 is a schematic perspective view of an adjustment assembly of the present invention.

Fig. 5 is a perspective view of the clamping assembly of the present invention.

Fig. 6 is an enlarged view of the invention at x of fig. 5.

Fig. 7 is a partial schematic view of the structure between the clamping assembly and the replacing assembly.

FIG. 8 is a sectional view taken along line G-G of FIG. 7 in accordance with the present invention.

In the figure: A. a workpiece; 1. a base; 11. a placement groove; 1a, locking screws; 1b, a threaded hole; 12. a feeding port; 13. an annular chute; 14. a circular groove; 15. rotating the hole; 16. a spline groove; 17. a yielding groove; 18. a limiting chute; 19. a sliding groove; 2. a processing unit; 21. a bearing block; 22. fixing the air cylinder; 23. processing a cutter; 24. an adjustment assembly; 241. a telescopic shaft; 242. rotating the disc; 243. a bevel gear; 244. a spline; 25. a clamping assembly; 251. an annular plate; 2511. fixing teeth; 252. a linkage groove; 253. a spacing pin; 254. a telescopic swing rod; 255. a linkage pin; 256. an execution block; 2561. fixing grooves; 2562. a push groove; 2563. connecting holes; 257. a return spring; 258. a clamping plate; 2581. mounting grooves; 2582. a limiting hole; 2583. fixing the rubber pad; 26. replacing the component; 261. a push cylinder; 262. a conical block; 263. inserting a rod; 264. the spring is contracted.

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 8, the auxiliary tool clamp for CNC numerical control machining center includes a base 1 and a machining unit 2, a placing groove 11 is opened at the center of the upper end of the base 1, the machining unit 2 is disposed on the base 1, wherein: the base 1 is of a detachable structure, a feed opening 12 communicated with the placing groove 11 is formed in the lower end of the base 1, locking screws 1a are connected at four corners of the upper end of the base 1 through threaded holes 1b in a threaded manner, the base 1 is convenient to detach and mount through the matching of the locking screws 1a and the threaded holes 1b, an annular sliding groove 13 is formed in the base 1, a circular groove 14 communicated with the annular sliding groove 13 is formed in the right side of the annular sliding groove 13, a rotating hole 15 is formed in the right end of the circular groove 14, a spline groove 16 is formed in the middle of the rotating hole 15, a abdicating groove 17 is formed in the right side of the spline groove 16, limiting sliding grooves 18 communicated with the annular sliding groove 13 are formed in the circumferential direction at equal intervals along the upper end of the annular sliding groove 13, a sliding groove 19 communicated with the upper end of the limiting sliding groove 18 is formed in the upper end of the sliding groove, and the other end of the sliding groove 19 is communicated with the placing groove 11; during specific work, the base 1 is assembled through the locking screws 1a and the threaded holes 1b, and then the base 1 is installed and fixed on the machining center.

The processing unit 2 comprises a bearing block 21, a fixed cylinder 22, a processing cutter 23, an adjusting component 24, a clamping component 25 and a replacing component 26, wherein: the supporting block 21 is positioned above the placing groove 11, the upper end of the supporting block 21 is connected with the machining center, the lower end of the supporting block 21 is provided with a fixed cylinder 22, the telescopic end of the fixed cylinder 22 is provided with a machining tool 23, an adjusting assembly 24 is rotatably arranged in the rotating hole 15, a clamping assembly 25 is arranged in the annular sliding groove 13, and a replacing assembly 26 is arranged in the clamping assembly 25; during specific work, the workman installs work piece A in standing groove 11, and carry out the centre gripping through centre gripping subassembly 25 cooperation adjusting part 24 to the work piece A of variation in size fixed, ensure the stability during work piece A adds man-hour, set up through changing subassembly 26 and can realize carrying out the fixed function of centre gripping to the work piece A of different shapes, start fixed cylinder 22 this moment, fixed cylinder 22 drives machining tool 23 according to the processing requirement and supports and lean on work piece A, machining tool 23 alright cooperation machining center processes according to the processing requirement to work piece A.

The adjustment assembly 24 includes a telescopic shaft 241, a rotary disc 242, and bevel gears 243, wherein: the telescopic shaft 241 is rotatably arranged in the rotating hole 15, a rotating disc 242 is arranged on one side of the telescopic shaft 241, which is far away from the circular groove 14, a bevel gear 243 rotatably arranged in the circular groove 14 is fixedly arranged at one end of the telescopic shaft 241, which is close to the circular groove 14, the bevel gear 243 is meshed with a fixed tooth 2511, and a spline 244 matched with the spline groove 16 is fixedly sleeved on the outer wall of the middle part of the telescopic shaft 241; during specific work, a worker drives the telescopic shaft 241 to rotate through rotating the rotating disc 242, so as to drive the bevel gear 243 to rotate, the purpose of adjusting the clamping component 25 is achieved through transmission between the bevel gear 243 and the fixed teeth 2511, after the adjustment is completed, the worker presses the telescopic shaft 241 into the rotating hole 15 through the rotating disc 242, at the moment, the meshing state of the bevel gear 243 and the fixed teeth 2511 is not changed, the telescopic shaft 241 drives the spline 244 to be clamped in the spline groove 16, so that the telescopic shaft 241 is limited, the condition that the bevel gear 243 continuously rotates is avoided, and the fixing effect of the clamping component 25 is enhanced; after the work is finished, the worker pulls out the spline 244 from the spline groove 16 through the rotating disc 242 in cooperation with the telescopic shaft 241, so that the limiting effect on the telescopic shaft 241 is eliminated, and then the telescopic shaft 241 is rotated in the reverse direction, so that the telescopic shaft 241 drives the bevel gear 243 to rotate in the reverse direction, and the clamping assembly 25 is driven to reset through the bevel gear 243.

The clamping assembly 25 comprises an annular plate 251, a linkage groove 252, a limit pin 253, a telescopic swing rod 254, a linkage pin 255, an execution block 256, a reset spring 257 and a clamping plate 258, wherein: the annular plate 251 is rotatably arranged in the annular sliding groove 13, and fixed teeth 2511 are circumferentially arranged on the upper side of the outer wall of the annular plate 251 at equal intervals; the upper end of the annular plate 251 is provided with a linkage groove 252, the linkage groove 252 is a star-shaped groove which facilitates the reciprocating sliding of the linkage pin 255, and corners of the linkage groove 252 are all arc-shaped structures; spacing pin 253 fixed mounting is in spacing spout 18, flexible pendulum rod 254 rotates the cover and establishes in the spacing pin 253 outside, and flexible pendulum rod 254 lower extreme articulates there is the linkage pin 255 that slides the setting in linkage groove 252, flexible pendulum rod 254 upper end articulates there is the execution piece 256 that slides the setting in sliding groove 19, execution piece 256 is upper and lower removable fraction structure, and execute piece 256 keep away from standing groove 11 one side and be connected with sliding groove 19 through reset spring 257, execute 256 inside fixed slot 2561 of having seted up of piece, fixed slot 2561 is close to standing groove 11 one side and has seted up push groove 2562, and push groove 2562 front and back symmetry has seted up connecting hole 2563, grip block 258 passes through mounting groove 2581 joint on executing piece 256, grip block 258 does not all install the fixed cushion 2583 of increase frictional force with the one end of executing 256 contacts, and spacing hole 2582 has been seted up to the mounting groove 2581 inner wall.

When the clamping device works specifically, firstly, a worker clamps the clamping plate 258 on the execution block 256 through the mounting groove 2581, and then locks and fixes the clamping plate 258 through the replacing component 26, then the annular plate 251 circumferentially rotates under the matching action of the fixed teeth 2511 and the bevel gear 243, the annular plate 251 drives the linkage pin 255 to slide through the linkage groove 252, when the linkage pin 255 slides to the wave crest of the linkage groove 252, the linkage pin 255 moves to one side of the limiting sliding groove 18 far away from the blanking opening 12, at the moment, the linkage pin 255 drives the execution block 256 and the clamping plate 258 to move inwards through the telescopic swing rod 254 matched with the limiting pin 253, so that the clamping plate 258 is matched with the fixed rubber pad 2583 to circumferentially clamp and fix the workpiece A, and the fixing effect is enhanced; after the work is finished, the bevel gear 243 rotates reversely, so that the bevel gear 243 drives the annular plate 251 to rotate reversely through the fixed tooth 2511, the annular plate 251 drives the linkage pin 255 to slide through the linkage groove 252, when the linkage pin 255 slides to the trough of the linkage groove 252, the linkage pin 255 moves to one side of the limiting sliding groove 18 close to the discharging opening 12, and at the moment, the linkage pin 255 drives the execution block 256 and the clamping plate 258 to reset through the telescopic swing rod 254 in cooperation with the reset spring 257, so that the fixing effect on the workpiece A is eliminated, and the workpiece A can be conveniently taken down by a worker.

The replacement assembly 26 includes a push cylinder 261, a tapered block 262, an insert rod 263, and a retraction spring 264, wherein: the pushing cylinder 261 is arranged in the fixing groove 2561, the telescopic end of the pushing cylinder 261 is provided with a conical block 262 which is arranged in the pushing groove 2562 in a sliding manner, the inserted rod 263 is arranged in the connecting hole 2563 in a sliding manner, the opposite sides of the inserted rod 263 are connected with the pushing groove 2562 through the contraction spring 264, and the inserted rod 263 is arranged in the limiting hole 2582 in a sliding manner and opposite to each other; when the clamping plate 258 is clamped on the execution block 256 through the mounting groove 2581, a worker starts the pushing cylinder 261, the pushing cylinder 261 drives the conical block 262 to move towards one side close to the clamping plate 258, and the conical block 262 extrudes the inserting rods 263 at the front side and the rear side outwards to enable the inserting rods to be inserted into the limiting hole 2582 so as to lock and fix the clamping plate 258; when the clamping plate 258 needs to be replaced, the pushing cylinder 261 drives the conical block 262 to reset, extrusion force of the conical block 262 on the inserting rod 263 is eliminated, the inserting rod 263 resets under the action of the contraction spring 264, at the moment, a worker can take the clamping plate 258 down, then the clamping plate 258 needing to be installed is clamped at the opposite end of the execution block 256, further, the pushing cylinder 261 locks and fixes the clamping plate 258 through the conical block 262 and the inserting rod 263 in a matching mode, the clamping plate 258 matched with the clamping plate can be replaced according to workpieces A in different shapes, and the applicability of the invention is improved.

During specific work, the first step is as follows: the worker assembles the base 1 through the locking screw 1a and the threaded hole 1b, and then installs and fixes the base 1 on the machining center.

The second step is that: the workman will carry out piece 256 with its matched with grip block 258 joint according to work piece A's shape, and then installs work piece A in standing groove 11, at this moment, starts push cylinder 261, and push cylinder 261 drives toper piece 262 and removes to being close to grip block 258 one side, and toper piece 262 extrudees the inserted bar 263 of front and back both sides to the outside, makes it insert to spacing hole 2582 in to locking fixedly to grip block 258.

The third step: a worker drives the telescopic shaft 241 to rotate through the rotating disc 242, so that the telescopic shaft 241 drives the bevel gear 243 to rotate, the annular plate 251 circumferentially rotates under the matching action of the fixed teeth 2511 and the bevel gear 243, the annular plate 251 drives the linkage pin 255 to slide through the linkage groove 252, when the linkage pin 255 slides to the peak of the linkage groove 252, the linkage pin 255 moves to one side of the limiting sliding groove 18 far away from the blanking opening 12, the linkage pin 255 drives the execution block 256 and the clamping plate 258 to move inwards through the telescopic swing rod 254 in a matching mode of the limiting pin 253, so that the clamping plate 258 circumferentially clamps and fixes a workpiece A in a matching mode of the fixing rubber pad 2583 to enhance the fixing effect, after the adjustment is completed, the worker presses the telescopic shaft 241 into the rotating hole 15 through the rotating disc 242, at the moment, the meshing state of the bevel gear 243 and the fixed teeth 2511 is not changed, and the telescopic shaft 241 drives the spline 244 to be clamped in the spline groove 16, the telescopic shaft 241 can be limited, so that the situation that the bevel gear 243 continues to rotate is avoided, and the fixing effect on the clamping component 25 is enhanced.

The fourth step: start fixed cylinder 22, fixed cylinder 22 will drive machining tool 23 according to the processing requirement and lean on work piece A, and machining tool 23 alright cooperation machining center processes work piece A according to the processing requirement, and the piece that the processing produced will flow out through feed opening 12, has avoided the adhesion situation on machining tool 23.

The fifth step: after the work is finished, a worker pulls out the spline 244 from the spline groove 16 through the rotating disc 242 in cooperation with the telescopic shaft 241, so that the limiting effect on the telescopic shaft 241 is eliminated, the telescopic shaft 241 is rotated reversely, the telescopic shaft 241 drives the bevel gear 243 to rotate reversely, the bevel gear 243 drives the annular plate 251 to rotate reversely through the fixed teeth 2511, the annular plate 251 drives the linkage pin 255 to slide through the linkage groove 252, when the linkage pin 255 slides to the trough of the linkage groove 252, the linkage pin 255 moves to one side of the limiting sliding groove 18 close to the discharging opening 12, at the moment, the linkage pin 255 drives the execution block 256 and the clamping plate 258 to reset through the telescopic swing rod 254 in cooperation with the reset spring 257, and therefore the fixing effect on the workpiece a is eliminated, and the worker can take the workpiece a down conveniently.

And a sixth step: when the clamping plate 258 needs to be replaced, the pushing cylinder 261 drives the conical block 262 to retract and reset, extrusion force of the conical block 262 on the inserting rod 263 is eliminated, the inserting rod 263 resets under the action of the contraction spring 264, at the moment, a worker can take the clamping plate 258 down, then the clamping plate 258 needing to be installed is clamped at the opposite end of the execution block 256, and further the pushing cylinder 261 locks and fixes the clamping plate 258 through the conical block 262 and the inserting rod 263 in a matching mode, so that the clamping plate 258 matched with the clamping plate can be replaced according to workpieces A in different shapes, and the applicability of the invention is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; 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.