CN216326625U

CN216326625U - Rotary clamp

Info

Publication number: CN216326625U
Application number: CN202122578208.XU
Authority: CN
Inventors: 杜维勇; 王建华; 赵闯; 符芳晓
Original assignee: Guangdong Pradi Technology Co ltd
Current assignee: Guangdong Pradi Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-19
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a rotary clamp, comprising: the fixture base is provided with a rotation driving device; the rotating seat is arranged on the upper side of the clamp base, the rotating seat and the clamp base rotate relatively, the rotating axis of the rotating seat is vertically arranged, and the rotating seat is in transmission connection with the rotating driving device; the clamping assembly comprises an upper clamping head and a lower clamping head, the upper clamping head and the lower clamping head are both arranged on the rotating seat, and a processing space is arranged between the upper clamping head and the lower clamping head; the quantity of centre gripping subassembly is a plurality of, and a plurality of centre gripping subassemblies are along the rotation axis circumference equipartition of rotating the seat in the periphery of rotating the seat. The rotating seat is provided with a plurality of clamping assemblies, a workpiece is clamped between an upper clamping head and a lower clamping head of each clamping assembly, and the rotating driving device can drive the rotating seat to rotate to drive the clamping assemblies and the workpiece to rotate along a vertical rotating axis; each rotating position of the workpiece corresponds to different processing procedures, so that a plurality of workpieces can be processed simultaneously, and the processing efficiency of the workpieces is improved.

Description

Rotary clamp

Technical Field

The utility model relates to the technical field of processing machines, in particular to a rotary clamp.

Background

Some machined workpieces are more demanding and may require machining at multiple locations or multiple passes. Most of the existing processing machines are used for sequentially processing workpieces by a processing main shaft according to a process after clamping the workpieces, and after one workpiece is processed, another new workpiece is replaced, so that the processing time is longer and the processing efficiency is slower for the workpieces with more processing requirements.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a rotary clamp, and aims to solve the technical problem that in the prior art, the workpiece machining efficiency is low.

In order to achieve the above object, the present invention provides a rotary jig comprising:

the fixture base is provided with a rotation driving device;

the rotating seat is arranged on the upper side of the clamp base, the rotating seat and the clamp base rotate relatively, the rotating axis of the rotating seat is vertically arranged, and the rotating seat is in transmission connection with the rotating driving device;

the clamping assembly comprises an upper chuck and a lower chuck, the upper chuck and the lower chuck are both arranged on the rotating seat, the upper chuck is arranged on the upper side of the lower chuck, and a processing space for placing a workpiece is arranged between the upper chuck and the lower chuck;

the quantity of centre gripping subassembly is a plurality of, and is a plurality of the centre gripping subassembly is followed the axis of rotation circumference equipartition of rotating the seat in the periphery of rotating the seat.

The rotating seat is provided with a plurality of clamping assemblies, the upper side and the lower side of the workpiece are respectively clamped between the upper chuck and the lower chuck of each clamping assembly, and the rotating driving device can drive the rotating seat to rotate to drive the clamping assemblies and the workpiece to rotate along a vertical rotating axis; each rotating position of the workpiece corresponds to different processing procedures, so that a plurality of workpieces can be processed simultaneously, and the processing efficiency of the workpieces is improved.

Preferably, the centre gripping subassembly includes screw rod and lower screw rod, go up the screw rod with lower screw rod all with it rotates to rotate the seat and is connected, go up the screw rod with lower screw rod all follows vertical extension, threaded connection has the upper nut on the upper screw rod, threaded connection has the lower nut on the lower screw rod, go up the chuck with upper nut fixed connection, down the chuck with lower nut fixed connection.

The upper screw rod can be rotated to drive the upper nut and the upper chuck to move up and down, and the lower screw rod can be rotated to drive the lower nut and the lower chuck to move up and down, so that the distance between the upper chuck and the lower chuck can be adjusted, the clamping device can flexibly adapt to clamping workpieces with different lengths, and the universality is improved.

Preferably, the threads of the upper screw and the lower screw are arranged in opposite directions, the upper screw and the lower screw are coaxially arranged, and the upper screw and the lower screw are fixedly connected.

The upper screw rod and the lower screw rod are fixedly connected and are reversely arranged in threads, when the upper screw rod and the lower screw rod are rotated, the upper chuck and the lower chuck synchronously move and are far away from or close to each other, and the distance is convenient to adjust; in addition, the gravity of the upper chuck and the gravity of the lower chuck are mutually offset through the upper screw and the lower screw, the self-locking positioning effect is achieved, and the position is not easy to change after the position is adjusted.

Preferably, a hand-cranking block is fixedly connected to the upper screw rod and/or the lower screw rod, and a hand-cranking portion is arranged on the hand-cranking block. When the distance between the upper chuck and the lower chuck needs to be adjusted, the hand-cranking block, the upper screw rod and the lower screw rod are manually rotated through the hand-cranking part, the rotating seat is not required to be provided with additional power to drive the upper screw rod and the lower screw rod, and the arrangement of wire connection on the rotating seat is simplified.

Preferably, the clamping assembly further comprises a chip blocking plate, the chip blocking plate is fixedly connected with the rotating seat, the chip blocking plate is arranged between the upper chuck and the lower chuck, and the chip blocking plate is arranged between the upper screw rod and the lower screw rod and between the processing spaces. The chip blocking plate is used for blocking and reducing material chips and machining liquid in machining from splashing to the upper screw and the lower screw, influences on the upper screw and the lower screw are reduced, and the service life is prolonged.

Preferably, a supporting member is arranged on the chip blocking plate, the supporting member is arranged on one side of the chip blocking plate close to the processing space, and the supporting member is used for supporting the suspended part of the workpiece. Because the upside and the downside of work piece have last chuck and lower chuck centre gripping atress respectively, the middle part of work piece is unsettled, and intensity is lower, and the middle part atress of work piece is easy to be out of shape when processing, reduces the machining precision. Therefore, the supporting member is arranged to support the suspended part of the workpiece, so that the strength of the middle part of the workpiece can be enhanced, and the processing precision is improved.

Preferably, a spacing baffle is arranged between two adjacent clamping assemblies and fixedly connected with the rotating seat. The spacing baffle plates are used for spacing two adjacent clamping assemblies, and can prevent material scraps and machining liquid generated during machining of one workpiece from splashing to the adjacent workpiece and the clamping assemblies, so that the adjacent workpiece and the clamping assemblies are prevented from being influenced mutually.

Preferably, the number of clamping assemblies is four. The processing positions of the four clamping assemblies are distributed reasonably and the number of the four clamping assemblies is more reasonable.

Preferably, the rotating fixture further comprises a chip collecting disc fixedly connected with the fixture base, the rotating seat is arranged on the upper side of the middle of the chip collecting disc, a chip outlet is formed in the chip collecting disc, a chip scraping plate is fixedly connected to the rotating seat and arranged on the upper side of the chip collecting disc, and the chip scraping plate extends from the inner side of the chip collecting disc to the outer edge of the chip collecting disc. The scraps produced during workpiece processing can fall into the scrap collecting disc, the scrap scraping plate rotates along with the rotating seat and can push the scraps to the scrap outlet to be discharged, and excessive scraps are prevented from being accumulated in the scrap collecting disc.

Preferably, the chip outlet is arranged at the outer side of the chip collecting disc, and the extending direction of the chip scraping plate is inclined backwards in the advancing direction from inside to outside. Therefore, when the scrap scraping plate rotates, the scrap scraping plate can push the scraps close to the inner side of the scrap collecting disc outwards, and accumulation of the scraps on the inner side of the scrap collecting disc is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

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

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the construction of the chip collecting disc and scraper plate of the present invention.

In the drawings: 1-a clamp base, 2-a rotating base, 21-a spacing baffle, 22-a scrap scraping plate, 3-a clamping assembly, 31-an upper chuck, 32-a lower chuck, 33-an upper screw, 34-a lower screw, 35-a hand-operated block, 351-a hand-operated part, 36-a supporting part, 37-a scrap blocking plate, 371-a hand-operated through hole, 4-a scrap collecting disc, 41-a scrap outlet and 5-a workpiece.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 4, a rotary jig includes a jig base 1, a rotary base 2, and a plurality of clamping assemblies 3.

Rotate the upside that seat 2 located anchor clamps base 1, rotate seat 2 and anchor clamps base 1 relative rotation, rotate the vertical setting of axis of rotation of seat 2, be equipped with rotation drive arrangement on the anchor clamps base 1, rotate seat 2 and be connected with the transmission of rotation drive arrangement, rotation drive arrangement can drive and rotate seat 2 and rotate.

The clamping assembly 3 comprises an upper clamping head 31 and a lower clamping head 32, the upper clamping head 31 and the lower clamping head 32 are both arranged on the rotating base 2, the upper clamping head 31 is arranged on the upper side of the lower clamping head 32, and a processing space for placing the workpiece 5 is arranged between the upper clamping head 31 and the lower clamping head 32. A plurality of centre gripping subassemblies 3 are followed the rotation axis circumference equipartition that rotates seat 2 in the periphery that rotates seat 2.

The rotating seat 2 is provided with a plurality of clamping assemblies 3, the upper side and the lower side of the workpiece 5 are respectively clamped between the upper chuck 31 and the lower chuck 32 of each clamping assembly 3, the workpiece 5 is clamped and fixed in the machining space, and the rotating driving device can drive the rotating seat 2 to rotate to drive the clamping assemblies 3 and the workpiece 5 to rotate along a vertical rotating axis. A plurality of machining spindles are provided on the outer periphery of the rotary base 2 at positions corresponding to the rotational positions of the workpiece 5, and a position for attaching and detaching the workpiece 5 may be provided in the rotational positions of the workpiece 5. Different processing main shafts correspond to different processing procedures, and when the workpiece 5 rotates, different processing is performed through the processing main shafts in sequence, and finally all processing is completed. Such a plurality of machining processes for one workpiece 5 are divided into a plurality of machining spindles, and the plurality of workpieces 5 are simultaneously machined by the plurality of machining axes and by the positional rotation of the plurality of workpieces 5, thereby improving the machining efficiency for the workpieces 5 without waiting for one workpiece 5 to be completely machined at a time and then machining the next workpiece 5.

In some embodiments, the clamping assembly 3 includes an upper screw 33 and a lower screw 34, the upper screw 33 and the lower screw 34 are both rotatably connected to the rotating base 2, the upper screw 33 and the lower screw 34 both extend vertically, an upper nut is screwed on the upper screw 33, a lower nut is screwed on the lower screw 34, the upper chuck 31 is fixedly connected to the upper nut, and the lower chuck 32 is fixedly connected to the lower nut. The clamping assembly 3 further comprises a vertically extending guide rail which is fixedly connected with the rotating base 2, and the upper chuck 31 and the lower chuck 32 are slidably connected with the guide rail.

The upper screw 33 can be rotated to drive the upper nut and the upper chuck 31 to move up and down, and the lower screw 34 can be rotated to drive the lower nut and the lower chuck 32 to move up and down, so that the distance between the upper chuck 31 and the lower chuck 32 can be adjusted, the workpiece 5 with different lengths can be flexibly clamped, and the universality is improved.

Further, the threads of the upper screw 33 and the lower screw 34 are arranged in opposite directions, the upper screw 33 and the lower screw 34 are coaxially arranged, and the upper screw 33 and the lower screw 34 are fixedly connected.

The upper screw 33 and the lower screw 34 are fixedly connected and the threads are arranged in opposite directions, when the upper screw 33 and the lower screw 34 are rotated, the upper chuck 31 and the lower chuck 32 synchronously move and are far away from or close to each other, so that the distance is conveniently adjusted; in addition, the gravity of the upper chuck 31 and the gravity of the lower chuck 32 are mutually offset through the upper screw 33 and the lower screw 34, so that the self-locking positioning effect is achieved, and the position is not easy to change after the position is adjusted.

Furthermore, a hand-cranking block 35 is fixedly connected to the upper screw 33 and/or the lower screw 34, and a hand-cranking portion 351 is arranged on the hand-cranking block 35.

When the distance between the upper chuck 31 and the lower chuck 32 needs to be adjusted, the hand-cranking portion 351 is used for manually rotating the hand-cranking block 35, the upper screw 33 and the lower screw 34, and no additional power is needed to be arranged on the rotating base 2 for driving the upper screw 33 and the lower screw 34, so that the arrangement of wire connection on the rotating base 2 is simplified. The hand-shaking block 35 may be provided at the upper end of the upper screw 33, at the lower end of the lower screw 34, or between the upper screw 33 and the lower screw 34. The hand-operated block 35 can be set as a hand-operated wheel, and a hand-operated part 351 is arranged on the hand-operated wheel. Or a plurality of hand jacks are arranged at the periphery of the hand block 35, each hand jack is a hand part 351 and can be inserted into a hand rod, when the distance needs to be adjusted, a handle rocker is inserted into each hand jack, and the upper screw 33 and the lower screw 34 can be rotated by shaking the hand rod; the hand-operated jacks are arranged to enable a plurality of hand-operated rods to be swung in different angles, so that the workpiece 5 does not obstruct the hand-operated rods to be swung.

In some embodiments, the clamping assembly 3 further includes a chip blocking plate 37, the chip blocking plate 37 is fixedly connected to the rotating base 2, the chip blocking plate 37 is disposed between the upper chuck 31 and the lower chuck 32, and the chip blocking plate 37 is disposed between the upper screw 33 and the lower screw 34 and the processing space. The chip blocking plate 37 is used for blocking and reducing the splashing of the material chips and the processing liquid in the processing process to the upper screw 33 and the lower screw 34, reducing the influence on the upper screw 33 and the lower screw 34 and prolonging the service life. The chip guard 37 also serves to shield the guide rail.

Further, when the hand-cranking block 35 is between the upper screw 33 and the lower screw 34, a hand-cranking through hole 371 is provided on the chip blocking plate 37, the hand-cranking through hole 371 is opposite to the hand-cranking block 35, and the hand-cranking block 35 can be rotated through the hand-cranking through hole 371.

In some embodiments, a support member 36 is provided on the chip guard 37, the support member 36 is provided on a side of the chip guard 37 near the machining space, and the support member 36 is used for supporting the suspended portion of the workpiece 5.

Because the upper chuck 31 and the lower chuck 32 are respectively arranged on the upper side and the lower side of the workpiece 5 for clamping and stressing, the middle part of the workpiece 5 is suspended, the strength is lower, the middle part of the workpiece 5 is stressed and easily deformed during processing, and the processing precision is reduced, therefore, the supporting member 36 is arranged for supporting the suspended part of the workpiece 5, the strength of the middle part of the workpiece 5 can be enhanced, the deformation is reduced, and the processing precision is improved. An air cylinder or a manual jig may be provided on the chip retainer 37, and the support member 36 may be provided on the air cylinder or the manual jig, and may hold the workpiece 5 to support the workpiece during machining.

In some embodiments, both the upper jaw 31 and the lower jaw 32 are powered jaws. The electric chuck can be electrically controlled, so that the workpiece 5 can be conveniently clamped or loosened; the electric chuck can also be set as a rotating shaft, and can drive the workpiece 5 to rotate so as to switch the processing surface of the workpiece 5.

In some embodiments, a spacing baffle 21 is disposed between two adjacent clamping assemblies 3, and the spacing baffle 21 is fixedly connected to the rotating base 2. The spacing baffle 21 separates two adjacent clamping components 3, and the spacing baffle 21 can prevent material scraps and machining liquid generated during machining of one workpiece 5 from splashing to the adjacent workpiece 5 and the adjacent clamping components 3, so that mutual influence between the adjacent workpiece 5 and the adjacent clamping components 3 is avoided.

In some embodiments, the number of clamping assemblies 3 is four. Correspondingly, the number of the processing main shafts is three, the position of one workpiece 5 is arranged, the three workpieces 5 can be processed simultaneously, and the processing positions of the four clamping assemblies 3 are distributed reasonably. In some embodiments, the number of the clamping assemblies 3 may also be three or five, and the like, and may be adapted according to the machining requirements and the position requirements of the workpiece 5.

In some embodiments, since the components in the clamping assembly 3 may need to be connected to wires and/or air pipes, an electrical slip ring rotary joint is provided at the top of the rotatable base 2, and the spool of the clamping assembly 3 is connected to the spool outside the rotatable base 2 through the electrical slip ring rotary joint, so that the spool in the clamping assembly 3 does not rotate the spool outside the rotatable base 2 when rotating.

In some embodiments, the rotating fixture further includes a chip collecting disc 4, the chip collecting disc 4 is fixedly connected with the fixture base 1, the rotating seat 2 is disposed on the upper side of the middle portion of the chip collecting disc 4, a chip outlet 41 is disposed on the chip collecting disc 4, a chip scraping plate 22 is fixedly connected to the rotating seat 2, the chip scraping plate 22 is disposed on the upper side of the chip collecting disc 4, and the chip scraping plate 22 extends from the inner side of the chip collecting disc 4 to the outer edge of the chip collecting disc 4. The scraps generated during the processing of the workpiece 5 fall into the scrap collecting disc 4, and the scrap scraping plate 22 rotates along with the rotating seat 2 and can push the scraps to the scrap outlet 41 for discharging, so that excessive scraps are prevented from being accumulated in the scrap collecting disc 4.

Further, the chip outlet 41 is provided outside the chip tray 4, and the extending direction of the chip scraper 22 is inclined rearward in the traveling direction from the inside to the outside. The chip outlet 41 is arranged outside the chip collecting disc 4, so that the parts such as a rotation driving device and the like on the lower side of the clamp base 1 can be conveniently avoided. If the scraper plate 22 extends in the radial direction of the chip tray 4, the chips located on the inner side are less likely to be discharged outwards, since the outer portion passes more chips over a larger area, while the inner portion passes less chips over a smaller area. According to the technology, the extending direction of the scrap scraping plate 22 is inclined backwards in the advancing direction from inside to outside, and when the scrap scraping plate 22 rotates, the inclined scrap scraping plate 22 can push out the scraps close to the inner side of the scrap collecting disc 4 outwards, so that the accumulation of the scraps on the inner side of the scrap collecting disc 4 is reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A rotating fixture, comprising:

the fixture base is provided with a rotation driving device;

2. The rotating fixture of claim 1, wherein the clamping assembly comprises an upper screw and a lower screw, the upper screw and the lower screw are both rotatably connected to the rotating base, the upper screw and the lower screw extend vertically, an upper nut is threadedly connected to the upper screw, a lower nut is threadedly connected to the lower screw, the upper collet is fixedly connected to the upper nut, and the lower collet is fixedly connected to the lower nut.

3. A rotary jig according to claim 2, wherein the threads of the upper screw and the lower screw are oppositely arranged, the upper screw and the lower screw are coaxially arranged, and the upper screw and the lower screw are fixedly connected.

4. The rotating clamp according to claim 3, wherein a hand-cranking block is fixedly connected to the upper screw rod and/or the lower screw rod, and a hand-cranking portion is arranged on the hand-cranking block.

5. The rotating fixture of claim 2, wherein the clamping assembly further comprises a chip retainer, the chip retainer is fixedly coupled to the rotating base, the chip retainer is disposed between the upper and lower jaws, and the chip retainer is disposed between the upper and lower threaded rods and the processing space.

6. The rotating jig of claim 5, wherein the chip blocking plate is provided with a support member provided on a side of the chip blocking plate adjacent to the processing space, the support member being adapted to support a suspended portion of the workpiece.

7. The rotating fixture of claim 1, wherein a spacing baffle is disposed between two adjacent clamping assemblies, and the spacing baffle is fixedly connected to the rotating base.

8. A rotary clamp according to claim 1, wherein said clamping assemblies are four in number.

9. The rotating fixture according to claim 1, wherein the rotating fixture further comprises a chip collecting disc, the chip collecting disc is fixedly connected with the fixture base, the rotating base is arranged on the upper side of the middle part of the chip collecting disc, a chip outlet is arranged on the chip collecting disc, a chip scraping plate is fixedly connected to the rotating base, the chip scraping plate is arranged on the upper side of the chip collecting disc, and the chip scraping plate extends from the inner side of the chip collecting disc to the outer edge of the chip collecting disc.

10. The rotating clamp according to claim 9, wherein the chip outlet is provided outside the chip collecting plate, and the extending direction of the chip scraping plate is inclined backward in the traveling direction from inside to outside.