CN217167652U

CN217167652U - Variable-diameter claw for workpiece shaft

Info

Publication number: CN217167652U
Application number: CN202220381575.2U
Authority: CN
Inventors: 陈英雷; 王会波; 胡朝帅; 石荣勇
Original assignee: Shandong Huifeng Transmission Co ltd
Current assignee: Shandong Huifeng Transmission Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-12
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to a variable-diameter claw of a workpiece shaft, which comprises a mounting rack, wherein a balance adjusting mechanism is arranged on the mounting rack, the balance adjusting mechanism comprises an upper balance plate and a lower balance plate, the upper balance plate is connected with a piston rod of a cylinder, two ends of the upper balance plate are correspondingly connected with two ends of the lower balance plate through two side shafts respectively, a connecting pin is arranged on each side shaft, two connecting plates are rotatably connected on each connecting pin, one end of each connecting plate, which is far away from the connecting pin, is hinged with a clamping finger, and the middle part of each clamping finger is hinged with the mounting rack; and a hard alloy block is embedded on the clamping surface of each clamping finger. The arrangement of the balance adjusting mechanism can enhance the stability in the grabbing process; the tungsten-cobalt hard alloy has excellent wear resistance, can improve the wear degree of the finger grabbing part, and improves the service life of the finger clamping.

Description

Variable-diameter claw for workpiece shaft

Technical Field

The utility model relates to a machinery cleft hand especially relates to work piece axle variable diameter cleft hand.

Background

The shaft parts need to be transferred in the production and processing process, the conventional transfer mode is transfer through a mechanical claw, and the conventional claw has the conditions that the grabbing is unstable, the finger grabbing part is easy to wear and the like when the shaft parts are transferred.

Based on the problems, the applicant carries out innovative research and develops the variable-diameter claw of the workpiece shaft.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide the variable footpath cleft hand of work piece axle.

The utility model is realized by the following technical scheme, the variable diameter claw of the workpiece shaft is provided, including the mounting bracket, be equipped with the balance adjustment mechanism on the mounting bracket, the balance adjustment mechanism includes upper balance plate and lower balance plate, and upper balance plate is connected with the piston rod of cylinder, and the both ends of upper balance plate correspond with the both ends of lower balance plate through two side shafts respectively and are connected, all are equipped with the connecting pin on every side shaft, all rotate on every connecting pin and connect two connecting plates, and the one end that every connecting plate kept away from the connecting pin all articulates a clamp finger, and the middle part that every clamp finger articulates with the mounting bracket; and a hard alloy block is embedded on the clamping surface of each clamping finger.

Preferably, the upper end of each side shaft is hinged with the upper balance plate through a pin shaft, and the lower end of each side shaft is hinged with the lower balance plate through a pin shaft.

Preferably, the upper balance plate and the lower balance plate are identical in structure.

Preferably, the mounting bracket comprises a top plate and two guide plates, the two guide plates are respectively and fixedly connected to two ends of the lower surface of the top plate, a circular through hole for the piston rod to pass through is formed in the top plate, and the two guide plates are located on two sides of the piston rod.

Preferably, a piston rod of the air cylinder is connected with the upper balance plate through a pin shaft.

Preferably, each guide plate is provided with a square through hole, the two side shafts are respectively placed in the two square through holes, and the connecting pin on each side shaft faces outwards.

Preferably, two long shafts penetrate through the two guide plates, a shaft hole for the long shafts to penetrate through is formed in the middle of each clamping finger, and the clamping fingers are sleeved on the long shafts and are limited through nuts in threaded connection on the long shafts. Two guide plates are connected through two long shafts, so that the structural strength and the stability can be improved, and two opposite clamping fingers can be ensured to be coaxial.

Preferably, a plurality of lightening holes are formed in each of the gripping fingers.

Preferably, the material of the hard alloy block is tungsten cobalt hard alloy, and an installation groove for accommodating the hard alloy block is arranged on the clamping surface of the clamping finger. The tungsten-cobalt hard alloy has excellent wear resistance, can improve the wear degree of the finger grabbing part, and improves the service life of the finger clamping.

Preferably, the lower end of each clamping finger is provided with a hook bent inwards, and the shaft piece can be prevented from falling off due to the arrangement of the hooks.

The utility model has the advantages that:

1. the arrangement of the balance adjusting mechanism can enhance the stability in the grabbing process; the tungsten-cobalt hard alloy has excellent wear resistance, can improve the wear degree of the finger grabbing part, and improves the service life of the finger clamping.

2. The lower extreme of every clamp finger all is equipped with the crotch of inside buckling, and the setting of crotch can avoid the axle piece to drop.

Drawings

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

fig. 2 is an isometric view of the mounting bracket of the present invention;

FIG. 3 is an isometric view of the connection plate of the present invention;

fig. 4 is an isometric view of the gripping fingers of the present invention;

fig. 5 is an isometric view of the upper balance plate or the lower balance plate of the present invention;

fig. 6 is an isometric view of the side shaft of the present invention;

shown in the figure:

1. the device comprises a top plate, 2, a guide plate, 3, a square through hole, 4, a circular through hole, 5, a connecting plate, 6, a clamping finger, 7, a mounting groove, 8, a hook, 9, a shaft hole, 10, a lightening hole, 11, a lower balance plate, 12, a side shaft, 13, a connecting pin, 14, an upper balance plate, 15, a piston rod, 16, a long shaft, 17 and a hard alloy block.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1-6, the utility model discloses a mounting bracket is equipped with balance adjustment mechanism on the mounting bracket, and balance adjustment mechanism's setting can strengthen the stability of snatching the in-process. The balance adjusting mechanism comprises an upper balance plate 14 and a lower balance plate 11, the upper balance plate 14 and the lower balance plate 11 are identical in structure, the upper balance plate 14 is connected with a piston rod 15 of the cylinder, two ends of the upper balance plate 14 are correspondingly connected with two ends of the lower balance plate 11 through two side shafts 12 respectively, the upper end of each side shaft 12 is hinged to the upper balance plate 14 through a pin shaft, and the lower end of each side shaft 12 is hinged to the lower balance plate 11 through a pin shaft. All be equipped with connecting pin 13 on every limit axle 12, all rotate on every connecting pin 13 and connect two connecting plates 5, the finger 6 is got to every connecting plate 5 one end of keeping away from connecting pin 13 all articulated one, and every middle part of getting finger 6 is articulated with the mounting bracket. The clamping surface of each clamping finger 6 is embedded with a hard alloy block 17.

The mounting bracket includes roof 1 and two deflector 2, and two deflector 2 rigid couplings are at the both ends of 1 lower surface of roof respectively, are equipped with the circular through-hole 4 that supplies piston rod 15 to pass on roof 1, and two deflector 2 are located the both sides of piston rod 15. The piston rod 15 of the cylinder is connected with the upper balance plate 14 through a pin shaft. Each guide plate 2 is provided with a square through hole 3, two side shafts 12 are respectively placed in the two square through holes 3, and the connecting pin 13 on each side shaft 12 faces outwards. The side shaft 12 can move up and down in the square through hole 3 under the drive of the piston rod 15.

Two long shafts 16 penetrate through the two guide plates 2, a shaft hole 9 for the long shaft 16 to penetrate through is formed in the middle of each clamping finger 6, and the clamping fingers 6 are sleeved on the long shafts 16 and limited through nuts connected with the long shafts 16 through threads. By connecting the two guide plates 2 by means of the two long axes 16, the structural strength and stability can be increased, while ensuring that the two opposing gripping fingers 6 are coaxial.

In order to reduce the weight of the gripping fingers 6, a plurality of lightening holes 10 are provided in each gripping finger 6.

The hard alloy block 17 is made of tungsten-cobalt hard alloy, and the tungsten-cobalt hard alloy has excellent wear resistance, so that the wear degree of a finger grabbing part can be improved, and the service life of the clamping finger 6 is prolonged. An installation groove 7 for accommodating a hard alloy block 17 is arranged on the clamping surface of the clamping finger 6.

In order to improve the grabbing firmness, the lower end of each clamping finger 6 is provided with a bent hook 8 bent inwards, and the shaft part can be prevented from falling off due to the arrangement of the bent hooks 8.

The position of each gripping finger 6 on the mounting frame is fixed, and the two gripping fingers 6 on each side can be opened or closed under the pushing or pulling of the piston rod 15, so that the shaft can be gripped.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. But work piece axle reducing claw hand, its characterized in that: the clamping device comprises a mounting frame, wherein a balance adjusting mechanism is arranged on the mounting frame, the balance adjusting mechanism comprises an upper balance plate and a lower balance plate, the upper balance plate is connected with a piston rod of a cylinder, two ends of the upper balance plate are correspondingly connected with two ends of the lower balance plate through two side shafts respectively, a connecting pin is arranged on each side shaft, two connecting plates are rotatably connected on each connecting pin, one end of each connecting plate, which is far away from the connecting pin, is hinged with a clamping finger, and the middle part of each clamping finger is hinged with the mounting frame; and a hard alloy block is embedded on the clamping surface of each clamping finger.

2. The workpiece axis variable diameter gripper of claim 1, wherein: the upper end of each side shaft is hinged with the upper balance plate through a pin shaft, and the lower end of each side shaft is hinged with the lower balance plate through a pin shaft.

3. The workpiece axis variable diameter gripper of claim 2, wherein: the upper balance plate and the lower balance plate are identical in structure.

4. The workpiece axis variable diameter gripper of claim 1, wherein: the mounting bracket comprises a top plate and two guide plates, the two guide plates are fixedly connected to two ends of the lower surface of the top plate respectively, a circular through hole for the piston rod to penetrate through is formed in the top plate, and the two guide plates are located on two sides of the piston rod.

5. The workpiece axis variable diameter gripper of claim 4, wherein: the piston rod of the cylinder is connected with the upper balance plate through a pin shaft.

6. The workpiece axis variable diameter gripper of claim 5, wherein: all be equipped with a square through-hole on every deflector, two limit axles are placed respectively in two square through-holes and every epaxial connecting pin of limit is outside.

7. The workpiece axis variable diameter gripper of claim 6, wherein: two long shafts penetrate through the two guide plates, a shaft hole for the long shaft to penetrate through is formed in the middle of each clamping finger, and the clamping fingers are sleeved on the long shafts and are limited through nuts in threaded connection on the long shafts.

8. The workpiece axis variable diameter gripper of claim 1, wherein: each clamping finger is provided with a plurality of lightening holes.

9. The workpiece axis variable diameter gripper of claim 1, wherein: the material of the hard alloy block is tungsten cobalt hard alloy, and an installation groove for accommodating the hard alloy block is arranged on the clamping surface of the clamping finger.

10. The workpiece axis variable diameter gripper of claim 1, wherein: the lower end of each clamping finger is provided with an inward bent hook.