CN212919453U

CN212919453U - Flexible tongs of two clamping jaws

Info

Publication number: CN212919453U
Application number: CN202020095000.5U
Authority: CN
Inventors: 朱垂桥; 饶永忠; 欧红林; 黄才英; 李煊红; 李波; 易建伟; 王静
Original assignee: Hunan Zhongnan Intelligent Industrial Technology Co ltd
Current assignee: Hunan Zhongnan Intelligent Industrial Technology Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2021-04-09
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a double-clamping-jaw flexible gripper, which comprises a frame, a clamping jaw A and a clamping jaw B, wherein the clamping jaw A and the clamping jaw B are respectively arranged on rails at two sides of the frame and are used for clamping a workpiece; the limiting part is fixed on the rails at two ends of the telescopic part so as to limit the moving stroke of the telescopic part, the first clamping part is connected with the first end of the telescopic part and fixed on the first sliding block, the second clamping part is connected with the second end of the telescopic part and fixed on the second sliding block, the first sliding block and the second sliding block are movably arranged on the rails, and the positioning pin is fixed on the rails and used for positioning a workpiece. The double-clamping-jaw flexible gripper can improve the working beat, quickly clamp and place workpieces, greatly reduce the wire stopping risk in the operation process of equipment, and can also operate when one clamping jaw is damaged; the clamping device has the advantages of small occupied space and high economic benefit, and can clamp workpieces of various types.

Description

Flexible tongs of two clamping jaws

Technical Field

The utility model belongs to the technical field of mechanical equipment, specifically speaking, the utility model relates to a flexible tongs of two grippers.

Background

A tongs that is used for snatching the work piece among the prior art mostly is single double-layered claw tongs, and current tongs are mostly non-flexible tongs. The single-clamping-claw gripper is low in beat efficiency, multi-station rapid gripping cannot be realized, only one workpiece can be gripped at each time, and the workpiece can be continuously gripped only by putting down the workpiece. The non-flexible tongs can only grab a workpiece, cannot grab workpieces of various different types, cannot adapt to the current rapid development requirement, and cannot effectively improve the working efficiency.

In summary, it is highly desirable to provide a new flexible gripper with strong practicability and capable of gripping 2 different types of workpieces at one time, so as to overcome the defects of single clamping jaw, inflexibility, low efficiency and the like of the gripper in the prior art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the double-clamping-claw flexible gripper is provided to overcome the defects of single clamping claw, non-flexibility, low efficiency and the like of the conventional gripper.

In order to realize the purpose, the utility model discloses the technical scheme who takes does:

a double-clamping-jaw flexible gripper comprises a frame, a clamping jaw A and a clamping jaw B, wherein the clamping jaw A and the clamping jaw B are respectively arranged on rails on two sides of the frame and used for clamping a workpiece; the limiting part is fixed on the rails at two ends of the extensible part to limit the moving stroke of the extensible part, the first clamping part is connected with the first end of the extensible part and fixed on the first sliding block, the second clamping part is connected with the second end of the extensible part and fixed on the second sliding block, the first sliding block and the second sliding block are movably arranged on the rails, and the positioning pin is fixed on the rails and used for positioning workpieces.

In another preferred embodiment, a guide rail is arranged on the rail, and the first sliding block and the second sliding block are both provided with sliding grooves matched with the guide rail.

In another preferred embodiment, the first clamping member includes a first connecting seat and a first clamping finger, and the first connecting seat is connected with the first end of the telescopic member through a first hinge pin.

In another preferred embodiment, the second clamping member comprises a second connecting seat and a second clamping finger, and the second connecting seat is connected with the second end of the telescopic member through a second hinge pin.

In another preferred embodiment, the rails include a first rail and a second rail arranged in parallel, the first rail and the second rail are both provided with guide rails on the same side, and both ends of the first sliding block or the second sliding block are connected with the guide rails on the first rail and the second rail in a sliding manner.

In another preferred embodiment, the telescopic member is a cylinder and comprises a cylinder block and a cylinder rod, the end of the cylinder block is connected with the first connecting seat, and the end of the cylinder rod is connected with the second connecting seat.

In another preferred embodiment, the end of the cylinder block is connected to the first connecting block by the first hinge pin; the tail end of the air cylinder rod is provided with a Y-shaped joint, and the Y-shaped joint is connected with the second connecting seat through the second hinge pin.

In another preferred embodiment, the positioning pins comprise a round pin and a diamond pin connected with the first rail and the second rail respectively, and the round pin and the diamond pin are positioned on the same side of the rails as the first clamping finger and the second clamping finger.

In another preferred embodiment, the round pin and the diamond pin are fixed to a first pin connection block and a second pin connection block, respectively, and the first pin connection block and the second pin connection block are fixed to the first rail and the second rail by a first connection plate and a second connection plate, respectively.

In another preferred embodiment, a first pressing block and a second pressing block are respectively fixed on the opposite inner side surfaces of the first rail and the second rail, the first pressing block and the second pressing block are both C-shaped, and the opening directions of the first pressing block and the second pressing block are opposite.

The technical scheme of the utility model the beneficial technological effect who gains is:

1. the double-clamping-jaw flexible gripper can improve the working beat of clamping workpieces, realize quick workpiece clamping and placing, greatly reduce the wire stopping risk caused by failure of equipment in the running process of equipment, and can also continue to run under the condition that one clamping jaw is damaged due to the two clamping jaws;

2. the utility model discloses a two flexible tongs of clamp claw's economic benefits is high, and ordinary tongs will realize that polytypic clamp is got and only can be changed the tongs, because be provided with the extensible member on the clamping jaw, the clamping jaw can press from both sides the various work pieces of size change in the stroke range of extensible member, consequently can one hold in the palm many, can realize a tongs of the work piece sharing of polytypic:

3. the utility model discloses a flexible tongs of two grippers take up an area of space little: if wanting to realize polytypic production, then need set up many equipment lines for ordinary tongs, and the utility model discloses only need a line can realize the production of polytypic work piece for the product line really reaches flexible production, fixes a position the back with the work piece through the locating pin, and the first clamp that fixes on the slider through the extensible member drive indicates with the second clamp, makes first clamp indicate and the second clamp indicates can remove along the guide rail, in order to adapt to the work piece of different models and reach accurate location.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

Fig. 1 is a top view of the overall structure of the double-jaw flexible gripper of the present invention;

FIG. 2 is a schematic view of FIG. 1 in another orientation;

FIG. 3 is a schematic view of the connection between the clamping jaw B and the frame;

fig. 4 is a schematic view of the connection structure of the air cylinder and the first and second clamping members of the present invention;

FIG. 5 is a schematic view of the cylinder structure of the present invention;

fig. 6 is a schematic structural view of the first clamping member of the present invention;

fig. 7 is a schematic structural view of the second clamping member of the present invention.

Reference numerals:

1-first limiting part 2-cylinder 3-first clamping part

4-first connecting plate 5-first sliding block A6-first pin connecting block

7-diamond pin 8-first pressing block 9-second sliding block A

10-first guide rail 11-second stop 12-second guide rail

13-second clamping piece 14-second sliding block B15-second pressing block

16-first sliding block B17-round pin 18-second pin connecting block

19-second web 20-first hinge pin 21-second hinge pin

22-cylinder seat 23-cylinder rod 24-Y type joint

25-first clamping finger 26-first connecting seat 27-second clamping finger

28-second connecting seat 29-frame 30-first rail

31-second rail 32-jaw a 33-jaw B

34-workpiece

Detailed Description

The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.

Referring to fig. 1 and 2, the double-jaw flexible gripper in this embodiment can grip different workpieces at the same time, and includes a frame 29, a clamping jaw a 32 and a clamping jaw B33, which are respectively disposed on rails on two sides of the frame 29 and used for clamping the workpieces, where the clamping jaw a 32 and the clamping jaw B33 each include a limiting member, an expansion member, a first clamping member 3, a second clamping member 13, a first slider, a second slider, and a positioning pin; the locating part is fixed on the rail at the two ends of the extensible member so as to limit the moving stroke of the extensible member, the first clamping part 3 is connected with the first end of the extensible member and fixed on the first sliding block, the second clamping part 13 is connected with the second end of the extensible member and fixed on the second sliding block, the first sliding block and the second sliding block are movably arranged on the rail, and the locating pin is fixed on the rail and used for locating a workpiece. The gripper of the utility model can simultaneously and rapidly clamp two workpieces by integrating two clamping jaws on the frame 29; through installing cylinder 2 additional, make the tongs can quick automatic adaptation work piece of different length and shape to firmly press from both sides the work piece steady, realize the flexibility of tongs.

Referring to fig. 3, the limiting member in this embodiment includes a first limiting member 1 and a second limiting member 11, wherein the first limiting member 1 is fixed on the rail at the first end of the telescopic member through a bolt and a nut, and the second limiting member 11 is fixed on the rail at the second end of the telescopic member through a bolt and a nut. Because the first end and the second end of the telescopic part are connected with the first sliding block and the second sliding block through the first clamping part 3 and the second clamping part 13, the first sliding block and the second sliding block can be electrically moved on the rail in the working process of the telescopic part. The first limiting part 1 and the second limiting part 11 are arranged at the two telescopic ends, so that the moving distance of the telescopic part can be ensured to be within an appointed stroke.

Referring to fig. 3 to 5, the telescopic member of the present embodiment is a cylinder 2, and includes a cylinder block 22 and a cylinder rod 23, so that when the cylinder 2 operates, the first clamping member 3 and the second clamping member 13 connected to the cylinder 2 can be driven to move toward or away from each other. In other embodiments, a cylinder or other components with similar working principles can be used as the telescopic member. Referring to fig. 3, the rails are disposed on the rails on both sides of the frame 29, and the first and second sliding blocks are each provided with a sliding groove engaged with the rails. Because the first slide block and the second slide block are respectively connected with the first clamping piece 3 and the second clamping piece 13, when the first slide block and the second slide block move along the guide rail, the moving direction of the air cylinder rod 23 is limited, and the air cylinder rod 23 is prevented from deviating when moving.

Referring to fig. 6 to 7, on the basis of the above embodiment, as a modification of the embodiment, in another embodiment, the first clamping member 3 includes a first connecting seat 26 and a first clamping finger 25, and the first connecting seat 26 is connected with the first end of the telescopic member through the first hinge pin 20. The second clamping member 13 comprises a second connecting seat 28 and a second clamping finger 27, the second connecting seat 28 being connected to the second end of the telescopic member by a second hinge pin 21. The end of the cylinder block 22 is connected to a first connecting block 26, and the end of the cylinder rod 23 is connected to a second connecting block 28. The end of the cylinder block 22 is connected to the first connecting block 26 by the first hinge pin 20; the end of the cylinder rod 23 is provided with a Y-joint 24, and the Y-joint 24 is connected with a second connecting seat 28 by a second hinge pin 21.

Referring to fig. 2 and fig. 3, as a modification of this embodiment, in another embodiment, the rails include a first rail 30 and a second rail 31 which are arranged in parallel, and guide rails are arranged on the same side of the first rail 30 and the second rail 31, that is, a first guide rail 10 is arranged on the bottom side of the first rail 30, a second guide rail 12 is arranged on the bottom side of the second rail 31, and both ends of the first slider or the second slider are connected with the guide rails on the first rail 30 and the second rail 31 in a sliding manner. As can be seen from fig. 3, the first slider includes a first slider A5 and a first slider B14 coupled to the first guide rail 10 and the second guide rail 12, respectively, and the second slider includes a second slider a 16 and a second slider B9 coupled to the first guide rail 10 and the second guide rail 12, respectively.

Referring to fig. 3, on the basis of the above embodiment, as a modification of the embodiment, in another embodiment, the positioning pins include a round pin 17 and a diamond pin 7 connected to the first rail 30 and the second rail 31, respectively, and the round pin 17 and the diamond pin 7 are located on the same side of the rails as the first clamping finger 25 and the second clamping finger 27. The round pin 17 and the diamond-shaped pin 7 are respectively fixed on the first pin connecting block 6 and the second pin connecting block 18, and the first pin connecting block 6 and the second pin connecting block 18 are respectively fixed on the first rail 30 and the second rail 31 through the first connecting plate 4 and the second connecting plate 19. Through integrating two kinds of locating pins for the work piece of tongs quick positioning different grade type realizes the precision of getting.

On the basis of the above embodiment, as an improvement of the embodiment, in another embodiment, the first pressing block 8 and the second pressing block 15 are respectively fixed on the opposite inner side surfaces of the first rail 30 and the second rail 31, and both the first pressing block 8 and the second pressing block 15 are C-shaped and have opposite opening directions. The two pressing blocks are arranged to prevent the workpiece from moving upwards when the clamping jaw clamps the workpiece.

The operation of the two-jaw flexible gripper in one embodiment is briefly described with reference to fig. 1 to 7: placing the workpiece between the first clamping piece 3 and the second clamping piece 13 of the clamping jaw B33, and positioning the workpiece through the round pin 17 and the diamond-shaped pin 7 of the clamping jaw B33; the cylinder 2 is opened to work, the cylinder rod 23 is retracted, and the first clamping finger 25 and the second clamping finger 27 move towards each other, so that the clamping jaw B33 is closed and clamps the workpiece; when the cylinder rod 23 is extended, the first and second

gripping fingers

25 and 27 move away from each other, causing the jaw B33 to open and release the workpiece. Since the working processes of the clamping jaw A32 and the clamping jaw B33 are the same, the detailed description is omitted.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The double-clamping-jaw flexible gripper is characterized by comprising a frame, a clamping jaw A and a clamping jaw B, wherein the clamping jaw A and the clamping jaw B are respectively arranged on rails on two sides of the frame and used for clamping a workpiece; the limiting part is fixed on the rails at two ends of the extensible part to limit the moving stroke of the extensible part, the first clamping part is connected with the first end of the extensible part and fixed on the first sliding block, the second clamping part is connected with the second end of the extensible part and fixed on the second sliding block, the first sliding block and the second sliding block are movably arranged on the rails, and the positioning pin is fixed on the rails and used for positioning workpieces.

2. The double-gripper flexible gripper according to claim 1, characterized in that said rails are provided with guide rails, said first slider and said second slider being provided with sliding grooves cooperating with said guide rails.

3. The dual gripper flexible grip of claim 2 wherein the first gripper includes a first connector and a first gripping finger, the first connector being connected to the first end of the telescoping member by a first hinge pin.

4. The dual gripper flexible grip of claim 3 wherein the second gripping member includes a second connecting base and a second gripping finger, the second connecting base being connected to the second end of the telescoping member by a second hinge pin.

5. The double-gripper flexible gripper according to claim 4, wherein the rails comprise a first rail and a second rail which are arranged in parallel, guide rails are arranged on the same side of the first rail and the second rail, and two ends of the first sliding block or the second sliding block are connected with the guide rails on the first rail and the second rail in a sliding mode.

6. The dual-gripper flexible hand grip of claim 5 wherein the telescoping member is a cylinder comprising a cylinder block and a cylinder rod, the cylinder block having a distal end connected to the first connecting block and the cylinder rod having a distal end connected to the second connecting block.

7. The dual-grip flexible hand grip of claim 6 wherein the distal end of the cylinder block is connected to the first connection block by the first hinge pin; the tail end of the air cylinder rod is provided with a Y-shaped joint, and the Y-shaped joint is connected with the second connecting seat through the second hinge pin.

8. The dual-gripper flexible gripper of claim 5, wherein said positioning pins comprise round and diamond pins connected to said first and second rails, respectively, said round and diamond pins being located on the same side of said rails as said first and second gripping fingers.

9. The dual-gripper flexible gripper of claim 8, wherein said round and diamond-shaped pins are fixed to a first and second pin connection block, respectively, said first and second pin connection blocks being fixed to said first and second rails by a first and second connecting plate, respectively.

10. The double-gripper flexible gripper according to claim 9, wherein the first and second pressing blocks are fixed on the opposite inner side surfaces of the first and second rails, respectively, and are C-shaped with the openings thereof facing away from each other.