CN212892667U

CN212892667U - Workpiece grabbing mechanism

Info

Publication number: CN212892667U
Application number: CN202020680932.6U
Authority: CN
Inventors: 高立伟
Original assignee: Handtmann Light Metal Foundry Tianjin Co ltd
Current assignee: Handtmann Light Metal Foundry Tianjin Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-04-06
Anticipated expiration: 2030-04-28

Abstract

The utility model relates to a workpiece grabbing mechanism, which comprises a track, a base, a connecting platform and a supporting column, the base is arranged on the track and is followed by the rack and pinion transmission assembly, the second push-pull air cylinder is installed on the base, the output end of the second push-pull air cylinder is connected with the connecting platform, the connecting platform is arranged above the base, the support column is fixed on the connecting platform, the rotary air cylinder is fixed on one side of the support column, the output end of the rotary air cylinder is connected with the support column through a mounting plate, the top of the support column is connected with the first connecting plate, the upper portion of the first connecting plate is connected with the second connecting plate through a stand column, the first push-pull air cylinder is installed on the second connecting plate, the output end of the first push-pull air cylinder penetrates through the second connecting plate and is connected with the grabbing assembly, and the first push-pull air cylinder grabs the push-pull grabbing assembly to achieve butt. The utility model discloses simple structure, easy and simple to handle replace artifically, improve work efficiency.

Description

Workpiece grabbing mechanism

Technical Field

The utility model relates to a work piece snatchs technical field, especially relates to a work piece snatchs mechanism.

Background

A finished machined workpiece needs to be machined through multiple working procedures, and in the existing machining, after the workpiece is machined through one working procedure, a worker needs to manually change to the next working procedure for machining. The clamping is carried out manually, the efficiency is low, and the labor intensity of workers is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a simple structure, easy and simple to handle replace artifically, improve work efficiency's work piece and snatch mechanism.

The utility model provides a workpiece grabbing mechanism, which comprises a track, a base, a connecting platform, a supporting column, a rotary cylinder, a supporting column, a first push-pull cylinder, a second push-pull cylinder and a grabbing component, the base is arranged on the track and slides along the track through the gear rack transmission assembly, the second push-pull air cylinder is arranged on the base, the output end of the second push-pull air cylinder is connected with the connecting platform, the connecting platform is arranged above the base, the support is fixed on the connecting platform, the rotary cylinder is fixed on one side of the support, the output end of the rotary cylinder is connected with a support column through a mounting plate, the top of the support column is connected with a first connecting plate, the upper part of the first connecting plate is connected with a second connecting plate through an upright post, a first push-pull cylinder is arranged on the second connecting plate, the output end of the first push-pull air cylinder penetrates through the second connecting plate and is connected with the grabbing assembly;

the grabbing assembly comprises a first grabbing arm, a second grabbing arm and a third grabbing arm, the center of the third grabbing arm is fixed to the output end of the first push-pull cylinder, the two ends of the third grabbing arm are respectively and sequentially connected with the second grabbing arm and the first grabbing arm in a rotating mode, one end of the second grabbing arm vertically slides relative to one end of the first grabbing arm, and the other end of the first grabbing arm is arranged on the second connecting plate and horizontally slides relative to the second connecting plate.

Preferably, a first sliding groove is formed in one end of the second grabbing arm, the top of the first grabbing arm is arranged in the first sliding groove and is rotatably connected with the two sides of the second grabbing arm through a first connecting shaft, third sliding grooves are formed in the two sides of the first grabbing arm, the first connecting shaft transversely penetrates through the first grabbing arm and vertically slides along the third sliding grooves, a sliding block is arranged at the bottom of the first grabbing arm, and a fourth sliding groove connected with the sliding block in a matched mode is formed in the second connecting plate.

In any one of the above schemes, preferably, the other end of the second grabbing arm is provided with a second sliding chute, and the end of the third grabbing arm is arranged in the second sliding chute and is rotatably connected with two sides of the second grabbing arm through a second connecting shaft.

In any of the above schemes, preferably, a rubber block is arranged on an end face of one end of the first grabbing arm.

In any of the above embodiments, an end surface of the rubber block is preferably a wedge surface.

Preferably in any one of the above schemes, the gear-rack transmission assembly comprises a rack, a gear, a speed reducer and a driving motor, wherein the output end of the driving motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the gear, the gear is connected with the bottom of the base through a rotating shaft, the gear is meshed with the rack, and the rack is arranged on the inner side of the track.

In any of the above schemes, preferably, the center of the bottom of the base is provided with an installation seat, a guide rod penetrates through the installation seat, and the guide rod is arranged along the long side direction of the rail.

Compared with the prior art, the utility model has the advantages and beneficial effects do:

1. the automatic grabbing device has the advantages that automatic grabbing of workpieces can be achieved, the traditional manual clamping mode is replaced, the structure is simple, the operation is simple and convenient, the working efficiency is improved, and the labor intensity of workers is reduced.

2. Through being equipped with revolving cylinder, revolving cylinder drives in order to loop through support column, first connecting plate, second connecting plate and snatchs the vertical rotation of subassembly, makes the work piece be located all the time on snatching the subassembly at the transfer in-process to when avoiding the work piece to be located and snatching the subassembly, the work piece drops the phenomenon because of self gravity at the transfer in-process.

3. Through being equipped with first push-and-pull cylinder, snatching the subassembly, snatch the subassembly through first push-and-pull cylinder push-and-pull and in order to realize comparing work piece to the inside butt of work piece, press from both sides the work piece from the outside and compare, can avoid the influence to work piece surface finish, moreover, because the work piece is shell structure, can realize pressing from both sides on the basis of getting structural stability guaranteeing, reduce to shell overall structure extrusion deformation, guarantee work piece yield.

The following describes a workpiece grabbing mechanism of the present invention with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the workpiece gripping mechanism of the present invention during support; (omitting speed reducer, driving motor)

Fig. 2 is a schematic structural view of the workpiece gripping mechanism when the workpiece gripping mechanism is retracted; (omitting speed reducer, driving motor)

FIG. 3 is a top view of the structure of FIG. 1 at A;

FIG. 4 is a side view of the structure of FIG. 2 at B;

fig. 5 is a schematic view of an installation structure of the connecting platform and the rail in the workpiece grabbing mechanism of the present invention;

wherein: 1. connecting the platform; 2. a pillar; 3. a rotating cylinder; 4. mounting a plate; 5. a support pillar; 6. a first connecting plate; 7. A column; 8. a second connecting plate; 81. a fourth chute; 9. a first gripper arm; 91. a slider; 10. a second gripper arm; 101. a first chute; 102. a second chute; 11. a third gripper arm; 12. a first push-pull cylinder; 13. a rack; 14. a track; 15. a second push-pull cylinder; 16. a base; 17. a mounting seat; 18. a guide bar; 19. a rotating shaft; 20. a gear.

Detailed Description

As shown in fig. 1, 3 and 5, the utility model provides a workpiece grabbing mechanism, which comprises a rail 14, a base 16, a connecting platform 1, a pillar 2, a rotary cylinder 3, a support pillar 5, a first push-pull cylinder 12, a second push-pull cylinder 15 and a grabbing component, wherein the base 16 is arranged on the rail 14 and slides along the rail 14 through a gear 20 and a rack 13 transmission component, the second push-pull cylinder 15 is arranged on the base 16, the output end of the second push-pull cylinder 15 is connected with the connecting platform 1, the connecting platform 1 is arranged above the base 16, the pillar 2 is fixed on the connecting platform 1, the rotary cylinder 3 is fixed on one side of the pillar 2, the output end of the rotary cylinder 3 is connected with the support pillar 5 through a mounting plate 4, the top of the support pillar 5 is connected with a first connecting plate 6, the upper part of the first connecting plate 6 is connected with a second connecting plate 8 through a column 7, the first, the output end of the first push-pull air cylinder 12 penetrates through the second connecting plate 8 and is connected with the grabbing component, and the first push-pull air cylinder 12 pushes and pulls the grabbing component to realize abutting and separation of workpieces.

The workpiece grabbing mechanism of the embodiment is arranged between the adjacent machining processes and used for grabbing the transmission shell. The specific working process is as follows: the base 16 slides to one of them process department along track 14 under the effect of gear 20 rack 13 transmission unit, revolving cylinder 3 moves, loop through support column 5, first connecting plate 6, second connecting plate 8 and drive and snatch the subassembly vertical rotation, make and snatch the subassembly face down, second push-and-pull cylinder 15 moves, drives and snatchs the subassembly and descend to the casing in, and first push-and-pull cylinder 12 moves, and the subassembly is snatched in the downward pulling, makes the both ends and the work piece inner wall looks butt of snatching the subassembly, realizes snatching the work piece.

The first push-pull air cylinder 12 acts again to enable the grabbing component with the workpiece to ascend, the base 16 slides along the rail 14 to be away from the working procedure for a certain distance under the action of the gear 20 and rack 13 transmission components, the rotary air cylinder 3 acts again to drive the grabbing component to rotate vertically again through the support column 5, the first connecting plate 6 and the second connecting plate 8, so that the grabbing component with the workpiece faces upwards, then the base 16 slides along the rail 14 to be close to another working procedure under the action of the gear 20 and rack 13 transmission components, the rotary air cylinder 3 acts again to drive the grabbing component to rotate vertically, so that the grabbing component with the workpiece faces downwards, the grabbing component is driven to descend through the first push-pull air cylinder 12 again, so that after the workpiece is contacted with the conveying belt of the next working procedure, the first push-pull air cylinder 12 acts to push the grabbing component upwards to separate two ends of the grabbing component from the inner wall of the workpiece, and releasing the workpiece is realized, so that the process of grabbing and transferring the workpiece is completed, and the cycle is repeated.

The workpiece grabbing mechanism of the embodiment can realize automatic grabbing of workpieces, replaces the traditional manual clamping mode, is simple in structure and easy and convenient to operate, improves the working efficiency, and reduces the labor intensity of workers.

The work piece of this embodiment snatchs the mechanism through being equipped with revolving cylinder 3, and revolving cylinder 3 drives in order to loop through support column 5, first connecting plate 6, second connecting plate 8 and snatchs the vertical rotation of subassembly, makes the work piece be located all the time and snatchs the subassembly at the transfer in-process on to when avoiding the work piece to be located and snatching the subassembly under, the work piece is because of self gravity at the transfer in-process phenomenon of droing.

The work piece of this embodiment snatchs the mechanism through being equipped with first push-and-pull cylinder 12, snatchs the subassembly through first push-and-pull cylinder 12 push-and-pull in order to realize pressing from both sides the butt and the separation inside the work piece, with press from both sides from the outside and get the work piece and compare, can avoid the influence to the work piece surface finish degree, moreover, because the work piece is shell structure, can realize pressing from both sides on the basis of getting structural stability in the assurance, reduce to shell overall structure extrusion deformation, guarantee work piece yield.

The grabbing component comprises a first grabbing arm 9, a second grabbing arm 10 and a third grabbing arm 11, the center of the third grabbing arm 11 is fixed to the output end of the first push-pull air cylinder 12, the two ends of the third grabbing arm 11 are respectively and sequentially connected with the second grabbing arm 10 and the first grabbing arm 9 in a rotating mode, one end of the second grabbing arm 10 vertically slides relative to one end of the first grabbing arm 9, and the other end of the first grabbing arm 9 is arranged on the second connecting plate 8 and horizontally slides relative to the second connecting plate.

Wherein, the first spout 101 has been seted up to the one end that the arm 10 was snatched to the second, the first top of snatching the arm 9 is located in the first spout 101 and is connected through the rotation of first connecting axle and the both sides that the arm 10 was snatched to the second, the third spout has been seted up to the first both sides of snatching the arm 9, first connecting axle transversely runs through first arm 9 of snatching and along the vertical slip of third spout, the first bottom of snatching the arm 9 is equipped with slider 91, be equipped with the fourth spout 81 of being connected with slider 91 cooperation on the second connecting plate 8.

The other end of the second grabbing arm 10 is provided with a second sliding chute 102, and the end of the third grabbing arm 11 is arranged in the second sliding chute 102 and is rotatably connected with the two sides of the second grabbing arm 10 through a second connecting shaft.

The specific working process of the grabbing component comprises the following steps: as shown in fig. 1 and fig. 2, the structure of the grasping assembly abutting against the inner wall of the workpiece is schematically illustrated. The first push-pull air cylinder 12 pulls the third grabbing arm 11 downwards, and two ends of the third grabbing arm 11 respectively drive the second grabbing arm 10 and the first grabbing arm 9 in sequence, so that the third grabbing arm 11 is perpendicular to the axis of the second grabbing arm 10, and the second grabbing arm 10 is coaxial with the axis of the first grabbing arm 9. At this time, one end of the second grabbing arm 10 rotates relative to the top of the first grabbing arm 9 through the first connecting shaft and slides downwards along the third sliding chute, the bottom of the first grabbing arm 9 slides outwards along the fourth sliding chute 81 through the sliding block 91, and the other end of the second grabbing arm 10 rotates relative to the third grabbing arm 11 through the second connecting shaft.

As shown in fig. 3 and 4, the structure of the grabbing component for separating the inner wall of the workpiece is schematically shown. The first push-pull air cylinder 12 pushes the third grabbing arm 11 upwards, and two ends of the third grabbing arm 11 respectively drive the second grabbing arm 10 and the first grabbing arm 9 in sequence, so that the axis of the third grabbing arm 11 and the axis of the second grabbing arm 10 are coaxial, and the axis of the second grabbing arm 10 and the axis of the first grabbing arm 9 are perpendicular. At this time, one end of the second grabbing arm 10 rotates relative to the top of the first grabbing arm 9 through the first connecting shaft and slides upwards along the third sliding chute, the bottom of the first grabbing arm 9 slides inwards horizontally along the fourth sliding chute 81 through the sliding block 91, and the other end of the second grabbing arm 10 rotates relative to the third grabbing arm 11 through the second connecting shaft.

Furthermore, a rubber block is arranged on the end face of one end of the first grabbing arm 9. Due to the arrangement of the rubber block, on one hand, the phenomenon that the grabbing component is scratched when being abutted against the inner wall of the workpiece can be effectively prevented, so that the quality of the workpiece is ensured; on the other hand, because the rubber block itself has elasticity, can guarantee to snatch the butt effort between subassembly and the work piece, increase the frictional force between first arm 9 and the work piece inner wall of snatching simultaneously to guarantee to snatch the structural stability of snatching between subassembly and the work piece, prevent that the work piece from droing.

And furthermore, the end face of the rubber block is a wedge-shaped face, so that the contact area between the end face of the rubber block and the inner wall of the workpiece is further increased.

Further, the gear 20 and rack 13 transmission assembly comprises a rack 13, a gear 20, a speed reducer and a driving motor, wherein the output end of the driving motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the gear 20, the gear 20 is connected with the bottom of the base 16 through a rotating shaft 19, the gear 20 is meshed with the rack 13, and the rack 13 is arranged on the inner side of the track 14. In this structure, the driving motor sequentially transmits power to the speed reducer and the gear 20, and the gear 20 rotates, thereby driving the base 16 to slide along the rail 14.

Further, the center of the bottom of the base 16 is provided with an installation seat 17, a guide rod 18 penetrates through the installation seat 17, and the guide rod 18 is arranged along the long side direction of the rail 14. In this structure, the guide rod 18 is provided to ensure the stability of the sliding of the connecting platform 1 along the rail 14, thereby realizing the stable transfer when the workpiece grabbing mechanism grabs the workpiece.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a work piece snatchs mechanism which characterized in that: the device comprises a track, a base, a connecting platform, a pillar, a rotary cylinder, a support column, a first push-pull cylinder, a second push-pull cylinder and a grabbing assembly, wherein the base is arranged on the track and slides along the track through a gear rack transmission assembly, the second push-pull cylinder is arranged on the base, the output end of the second push-pull cylinder is connected with the connecting platform, the connecting platform is arranged above the base, the pillar is fixed on the connecting platform, the rotary cylinder is fixed on one side of the pillar, the output end of the rotary cylinder is connected with the support column through a mounting plate, the top of the support column is connected with a first connecting plate, the upper part of the first connecting plate is connected with a second connecting plate through a stand column, the first push-pull cylinder is arranged on the second connecting plate, and the output end of the first push-pull cylinder;

2. A workpiece gripping mechanism as claimed in claim 1, characterised in that: the second snatchs the one end of arm and has seted up first spout, the first top of snatching the arm locate in the first spout and through first connecting axle with the second snatchs the both sides of arm and rotate and connect, the third spout has been seted up to the first both sides of snatching the arm, first connecting axle transversely runs through first snatchs the arm and follows the vertical slip of third spout, the first bottom of snatching the arm is equipped with the slider, be equipped with the fourth spout of being connected with the slider cooperation on the second connecting plate.

3. A workpiece gripping mechanism as claimed in claim 1, characterised in that: the other end of the second grabbing arm is provided with a second sliding groove, and the end part of the third grabbing arm is arranged in the second sliding groove and is rotatably connected with the two sides of the second grabbing arm through a second connecting shaft.

4. A workpiece gripping mechanism as claimed in claim 1, characterised in that: and a rubber block is arranged on one end face of the first grabbing arm.

5. The workpiece gripping mechanism of claim 4, wherein: the end face of the rubber block is a wedge-shaped face.

6. A workpiece gripping mechanism as claimed in claim 1, characterised in that: the gear and rack transmission assembly comprises a rack, a gear, a speed reducer and a driving motor, wherein the output end of the driving motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the gear, the gear is connected with the bottom of the base through a rotating shaft, the gear is meshed with the rack and is connected with the rack, and the rack is arranged on the inner side of the track.

7. A workpiece gripping mechanism as claimed in claim 6, characterised in that: the base is characterized in that a mounting seat is arranged at the center of the bottom of the base, a guide rod penetrates through the mounting seat, and the guide rod is arranged along the long edge direction of the rail.