CN216542157U

CN216542157U - Workpiece clamping device for improving machining efficiency

Info

Publication number: CN216542157U
Application number: CN202123301265.XU
Authority: CN
Inventors: 汪建斌; 吴栋
Original assignee: Zhongjingxing Robot Changzhou Co ltd
Current assignee: Zhongjingxing Robot Changzhou Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-17
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to an improve work piece clamping device of machining efficiency belongs to the processing equipment field of integral key shaft, and it includes the frame, be equipped with the centre gripping polished rod in the frame, the centre gripping polished rod slides with the frame relatively, the one end of centre gripping polished rod is equipped with fixture, fixture includes the clamping jaw, the clamping jaw is connected with the centre gripping polished rod, the clamping jaw includes centre gripping dish and fixture block, the fixture block slides relatively with the centre gripping dish, the one end that the centre gripping dish was kept away from to the fixture block is equipped with the flange, the flange is located the fixture block towards one side of centre gripping dish axis, and the spindle nose of work piece base is located between flange and the centre gripping dish. This application has formed the anti-drop spacing to the work piece base of the integral key shaft by fixture centre gripping through the flange, has improved the work piece and has got the success rate of pressing from both sides the clamp of the positional stability and work piece under the state of getting by the clamp.

Description

Workpiece clamping device for improving machining efficiency

Technical Field

The application relates to the field of machining equipment of spline shafts, in particular to a workpiece clamping device for improving machining efficiency.

Background

The spline shaft has the same functions as the flat key, the semi-circular key and the wedge key and is a mechanical part for transmitting mechanical torque, a longitudinal key groove is formed in the outer surface of the spline shaft, and a rotating part sleeved on the shaft also has a corresponding key groove and can keep synchronous rotation with the shaft.

In the related art, the spline shaft is a workpiece blank before being machined, the workpiece blank in the related art is shown in fig. 1 and comprises a shaft body 41 and a shaft head 42 which are coaxial with each other, and the radial dimension of the shaft head 42 is larger than that of the shaft body 41; in the machining process of the spline shaft, the workpiece blank 4 needs to be clamped one by using a robot clamping jaw and placed on a machining machine tool, the structure of the robot clamping jaw is similar to that of a three-jaw chuck, and clamping blocks of the clamping jaw abut against the side wall of a shaft head 42 of the workpiece blank 4 and move towards the machining machine tool.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: if the robot clamping jaw is damaged in the using process, the workpiece blank cannot be tightly abutted by the individual clamping block, or the clamping jaw cannot normally clamp the workpiece blank, so that the workpiece blank further falls off from the clamping jaw.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem, the application provides a work piece clamping device for improving machining efficiency.

The application provides a work piece clamping device who improves machining efficiency adopts following technical scheme:

the utility model provides an improve work piece clamping device of machining efficiency, includes the frame, be equipped with the centre gripping polished rod eye in the frame, the centre gripping polished rod eye slides with the frame relatively, the one end of centre gripping polished rod eye is equipped with fixture, fixture includes the clamping jaw, the clamping jaw is connected with the centre gripping polished rod eye, the clamping jaw includes centre gripping dish and fixture block, fixture block and centre gripping dish slide relatively, the one end that the centre gripping dish was kept away from to the fixture block is equipped with the flange, the flange is located one side of fixture block towards centre gripping dish axis, and the spindle nose of work piece base is located between flange and the centre gripping dish.

Through adopting above-mentioned technical scheme, if the fixture block does not support the work piece base tightly, appear the clearance between the two, the work piece base has the trend of keeping away from the clamping disk and removing, and the flange can form to remove spacingly to the spindle nose of work piece base, reduces the probability that the work piece base dropped from the clamping jaw.

Preferably, a matching chamfer is arranged on one side of the flange, which is far away from the fixture block and faces the edge of one side of the clamping disc.

Through adopting above-mentioned technical scheme, when the clamping jaw made the centre gripping action, the fixture block moved towards the spindle nose, and the existence of cooperation chamfer has reduced fixture block and spindle nose and the ascending relative position required precision of direction of height, and when cooperation chamfer and spindle nose edge contact, the existence on chamfer inclined plane can make the spindle nose automatic sliding to on the flange, improves the clamp of clamping jaw and gets the success rate.

Preferably, fixture includes the mounting panel, the mounting panel slides with the centre gripping polished rod and is connected, the grip block is connected with one side that the mounting panel deviates from the centre gripping polished rod, the slip direction of the relative centre gripping polished rod of mounting panel is perpendicular with the slip direction of the relative frame of centre gripping polished rod.

By adopting the technical scheme, the mounting plate carries the clamping jaw to move so as to change the relative position of the clamping jaw relative to the clamping suspension rod, and even if the placing position of the workpiece blank deviates in the sliding direction vertical to the clamping suspension rod, the clamping jaw can clamp the workpiece blank by moving the mounting plate.

Preferably, fixedly connected with fixing base on the centre gripping hanging rod, be equipped with the regulation track that supplies the mounting panel to slide on the fixing base, be equipped with the regulation slide rail on the mounting panel, it is located the regulation track to adjust the slide rail, the tip of adjusting the slide rail is equipped with limit stop.

Through adopting above-mentioned technical scheme, limit stop limits the moving range of the relative fixing base of mounting panel, reduces the risk that the mounting panel drops from the fixing base.

Preferably, the clamping jaw is provided in plurality.

By adopting the technical scheme, each clamping jaw correspondingly clamps one workpiece blank, the number of the clamping jaws is increased, the number of the workpiece blanks which can be clamped by a single action of the clamping mechanism can be increased, and therefore the production efficiency is improved.

Preferably, one side fixedly connected with cooperation arch that the grip block deviates from of grip block, set up on the mounting panel and supply to cooperate protruding male cooperation groove, the length direction in cooperation groove is perpendicular with the relative gliding direction of centre gripping polished rod of mounting panel, the mounting panel is located to cooperate the inslot and slides, be equipped with the mounting that is used for fixed grip block on the mounting panel.

Preferably, the fixing member is a bolt and a nut, the mounting plate is provided with a plurality of mounting holes for selectively inserting the bolt, and the mounting holes are arranged along the length direction of the matching groove.

By adopting the technical scheme, the clamping jaws are fixedly installed on the installation plate through the bolts and the nuts, and meanwhile, the specific installation position of each clamping jaw can be independently selected through different installation spaces, so that the adaptability of the clamping mechanism to the placing positions of the workpiece blanks clamped by the clamping mechanism is improved.

Preferably, the control seat is connected to the rack in a sliding manner, the clamping suspension rod is connected with the control seat in a sliding manner, the sliding direction of the clamping suspension rod relative to the control seat is consistent with the length direction of the clamping suspension rod, the sliding direction of the control seat is perpendicular to the length direction of the clamping suspension rod, a buffer cushion block is arranged at the end part of the clamping suspension rod, and the buffer cushion block is abutted to the control seat.

Through adopting above-mentioned technical scheme, when the relative control seat of centre gripping polished rod removed, cushion block had born the striking that comes from the control seat, has also played the effect of structural protection when carrying out the stroke spacing to the centre gripping polished rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the flanges, if the workpiece blank is not tightly abutted by the fixture block, a gap is formed between the fixture block and the workpiece blank, the workpiece blank has a tendency of moving away from the clamping disc, and the flanges can limit the movement of the shaft head of the workpiece blank, so that the probability that the workpiece blank falls from the clamping jaw is reduced;

2. through a plurality of clamping jaw settings, the centre gripping polished rod single operation can once only transport a plurality of work piece base to the lathe on, has improved the machining efficiency of integral key shaft.

Drawings

Fig. 1 is a schematic view of a structure of a work blank for embodying a spline shaft in the related art.

Fig. 2 is a schematic overall structure diagram of a workpiece clamping device for improving processing efficiency in the embodiment of the present application.

Fig. 3 is a schematic overall structure diagram for embodying the holding mechanism in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing the installation relationship of the clamping jaw and the mounting plate in the embodiment of the application.

Fig. 5 is a partially enlarged view of a portion a in fig. 4.

Description of reference numerals: 1. a frame; 11. a feeding track; 12. a processing machine tool; 13. a blank table; 2. a feeding system; 21. a control seat; 22. clamping the suspension rod; 23. a fixed seat; 231. buffering cushion blocks; 232. adjusting the track; 233. an adjusting cylinder; 3. a clamping mechanism; 31. mounting a plate; 311. adjusting the slide rail; 312. a limit stop block; 3121. a buffer sponge; 313. a mating groove; 314. mounting holes; 315. a fixing member; 32. a clamping jaw; 321. a clamping plate; 3211. a mating protrusion; 322. a clamping block; 3221. blocking edges; 3222. matching and chamfering; 4. a workpiece blank; 41. a shaft body; 42. the shaft head.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses improve work piece clamping device of machining efficiency, as shown in fig. 2, including frame 1, frame 1 itself includes a unsettled material loading track 11, and the district is placed for the blank to the one end of material loading track 11, and the other end is machine tool 12. A blank table 13 is arranged at the blank placing area, and a plurality of blanks are placed on the table surface of the blank table 13. The frame 1 is provided with a feeding system 2, and the feeding system 2 is used for conveying the workpiece blanks 4 of the spline shafts from the blank placing area to a processing machine 12.

As shown in fig. 2 and 3, the length direction of the feeding rail 11 is the horizontal direction, the feeding system 2 includes a control seat 21, a clamping suspension rod 22 and a clamping mechanism 3, the control seat 21 is connected with the feeding rail 11 in a sliding manner, the clamping suspension rod 22 is connected with the control seat 21 in a sliding manner, the number of the control seat 21 and the clamping suspension rod 22 is two in this embodiment, and the two control seats 21 move synchronously. The length direction of the clamping suspension rod 22 and the moving direction of the clamping suspension rod relative to the control base 21 are both vertical directions, and a motor for controlling the clamping suspension rod 22 to move is arranged on the control base 21. The lower end of the clamping suspension rod 22 is fixedly connected with a fixed seat 23 through a bolt, and the fixed seat 23 is used for installing the clamping mechanism 3; a cushion block 231 is fixedly installed on one side of the fixing seat 23 facing the control seat 21, the cushion block 231 is a rubber block, and when the cushion block 231 abuts against the control seat 21, the clamping suspension rod 22 cannot move upward relative to the control seat 21.

As shown in fig. 3 and 4, the clamping mechanism 3 includes a mounting plate 31 and a clamping jaw 32. One side fixedly connected with of mounting panel 31 adjusts slide rail 311, and the regulation track 232 that supplies to adjust slide rail 311 and slide is seted up to one side that fixing base 23 deviates from centre gripping hanging rod 22, and the length direction of adjusting track 232 is perpendicular with the length direction of material loading track 11 and the length direction of centre gripping hanging rod 22 simultaneously. An adjusting cylinder 233 is fixedly installed on one side of the fixing seat 23 facing the installation plate 31, the end portion of a piston rod of the adjusting cylinder 233 is fixedly connected with the installation plate 31, and the extension direction of the piston rod of the adjusting cylinder 233 is consistent with the length direction of the adjusting track 232. Adjust both ends of slide rail 311 and all be provided with limit stop 312, limit stop 312 pastes towards one side of adjusting track 232 and is equipped with buffer sponge 3121, and limit stop 312 and buffer sponge 3121's effect is similar with buffer cushion 231's effect, and no longer the repeated description here.

As shown in fig. 3 and 4, the clamping jaws 32 are installed on one side of the mounting plate 31 departing from the fixing seat 23, in this embodiment, the number of the clamping jaws 32 on the mounting plate 31 is three, the clamping jaws 32 adopt a pneumatic three-jaw chuck, which includes a clamping disk 321 and a fixture block 322, and the fixture block 322 is located on one side of the clamping disk 321 and connected with the clamping disk 321 in a sliding manner. The mounting panel 31 has seted up cooperation groove 313 on the one side that deviates from fixing base 23, the length direction of cooperation groove 313 is unanimous with the length direction of material loading track 11, one side integrated into one piece that the centre gripping dish 321 deviates from fixture block 322 has the cooperation arch 3211, the cooperation arch 3211 can mutually support with cooperation groove 313, three clamping jaw 32 is arranged along the length direction of cooperation groove 313, and every centre gripping dish 321 all can remove along the length direction of cooperation groove 313 through the cooperation state of cooperation arch 3211 with cooperation groove 313. Be provided with on the mounting panel 31 and be used for the fixed mounting 315 with the grip block 321, set up the waist shape hole that runs through self thickness on the grip block 321, seted up a plurality of mounting holes 314 on the mounting panel 31, the mounting 315 adopts bolt and nut, and the bolt passes waist shape hole on the grip block 321 and mounting hole 314 on the mounting panel 31 simultaneously, then with nut threaded connection. The single kidney-shaped hole corresponds to a plurality of mounting holes 314, the mounting holes 314 are uniformly arranged along the length direction of the matching groove 313, a bolt selectively passes through one of the mounting holes 314, and the arrangement of the mounting holes 314 is designed to change the mounting position of the clamping jaw 32 relative to the mounting plate 31.

As shown in fig. 4 and 5, when the clamping jaw 32 clamps the workpiece blank 4, one side of the fixture block 322 facing the axis of the clamping disc 321 is abutted against the side wall of the spindle head 42 of the workpiece blank 4, and the three fixture blocks 322 clamp the spindle head 42 together. A flange 3221 is integrally formed on one side of the fixture block 322, which is away from one end of the clamping disc 321 and faces the axis of the clamping disc 321, when the clamping jaw 32 clamps the workpiece blank 4, the spindle head 42 of the workpiece blank 4 is located between the flange 3221 and the clamping disc 321, and the flange 3221 has a certain anti-falling limiting effect on the workpiece blank 4. One side of the retaining edge 3221 away from the clamping block 322 and the edge of one side facing the clamping disc 321 are provided with a matching chamfer 3222, when the clamping jaw 32 performs a clamping action, the clamping block 322 moves towards the shaft head 42, the precision requirement of the relative position between the clamping block 322 and the shaft head 42 in the height direction is reduced by the matching chamfer 3222, and the clamping success rate of the clamping jaw 32 is improved.

The implementation principle of the workpiece clamping device for improving the machining efficiency is as follows:

firstly, arranging a plurality of workpiece blanks 4 on the blank table 13 regularly in groups of three, adjusting the fixed positions of the clamping jaws 32 on the mounting plate 31 according to the relative arrangement positions of the workpiece blanks 4 in each group, starting the feeding system 2, clamping two groups of workpiece blanks 4 by the clamping mechanism 3 at a time, and conveying the workpiece blanks towards the processing machine 12 under the coordination of the clamping suspension rods 22 and the control seat 21.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an improve work piece clamping device of machining efficiency, includes frame (1), be equipped with centre gripping polished rod eye (22) on frame (1), centre gripping polished rod eye (22) and frame (1) relative slip, the one end of centre gripping polished rod eye (22) is equipped with fixture (3), fixture (3) are including clamping jaw (32), clamping jaw (32) are connected with centre gripping polished rod eye (22), clamping jaw (32) are including centre gripping dish (321) and fixture block (322), fixture block (322) and centre gripping dish (321) relative slip, its characterized in that: a flange (3221) is arranged at one end, away from the clamping disc (321), of the clamping block (322), the flange (3221) is located on one side, facing the axis of the clamping disc (321), of the clamping block (322), and a shaft head (42) of the workpiece blank (4) is located between the flange (3221) and the clamping disc (321).

2. The workpiece clamping device for improving the machining efficiency as recited in claim 1, wherein: and a matching chamfer (3222) is formed at the edge of one side of the retaining edge (3221) far away from the clamping block (322) and facing the clamping disc (321).

3. The workpiece clamping device for improving the machining efficiency as recited in claim 1, wherein: fixture (3) include mounting panel (31), mounting panel (31) slide with centre gripping polished rod eye (22) and be connected, centre gripping dish (321) are connected with one side that mounting panel (31) deviate from centre gripping polished rod eye (22), the slip direction of the relative centre gripping polished rod eye (22) of mounting panel (31) is perpendicular with the slip direction of the relative frame (1) of centre gripping polished rod eye (22).

4. The workpiece clamping device for improving the machining efficiency as recited in claim 3, wherein: fixedly connected with fixing base (23) on centre gripping polished rod eye (22), be equipped with on fixing base (23) and supply adjusting rail (232) that mounting panel (31) slided, be equipped with on mounting panel (31) and adjust slide rail (311), it is located adjusting rail (232) to adjust slide rail (311), the tip of adjusting slide rail (311) is equipped with limit stop (312).

5. The workpiece clamping device for improving the machining efficiency as recited in claim 3, wherein: the clamping jaw (32) is provided with a plurality of clamping jaws.

6. The workpiece clamping device for improving the machining efficiency as recited in claim 5, wherein: one side fixedly connected with cooperation arch (3211) that centre gripping dish (321) deviates from fixture block (322), offer on mounting panel (31) and supply to cooperate protruding (3211) male cooperation groove (313), the length direction and the relative centre gripping hanging rod (22) gliding direction of mounting panel (31) of cooperation groove (313) are perpendicular, mounting panel (31) are located and slide in cooperation groove (313), be equipped with mounting (315) that are used for fixed centre gripping dish (321) on mounting panel (31).

7. The workpiece clamping device for improving the machining efficiency as recited in claim 6, wherein: the fixing piece (315) is a bolt and a nut, a plurality of mounting holes (314) for selectively inserting the bolt are formed in the mounting plate (31), and the mounting holes (314) are arranged along the length direction of the matching groove (313).

8. The workpiece clamping device for improving the machining efficiency as recited in claim 1, wherein: the utility model discloses a clamping suspension rod, including frame (1), centre gripping suspension rod (22) and control seat (21), the frame is slided on (1) and is connected with control seat (21), the slip direction of centre gripping suspension rod (22) relative control seat (21) is unanimous with the length direction of centre gripping suspension rod (22), the slip direction of control seat (21) is perpendicular with the length direction of centre gripping suspension rod (22), the tip of centre gripping suspension rod (22) is equipped with buffer pad (231), buffer pad (231) and control seat (21) butt.