阅读说明：本技术 双工位治具自动交换缝纫机 (Automatic exchange sewing machine of duplex position tool ) 是由 蒋斌 季红 刘金舟 吴江 于 2021-05-31 设计创作，主要内容包括：本发明涉及汽车安全气囊加工设备领域,尤其是涉及一种双工位治具自动交换缝纫机,包括一台机架、两台抓取总成、两个置物架以及一台缝纫机,所述机架包括底架以及固定于所述底架顶部的工作台面,所述抓取总成以及置物架分别对称地设置于所述工作台面两侧,所述缝纫机设置于两个抓取总成的中间位置；所述抓取总成包括位移机构以及限位机构,所述工作台面上还设置有与所述移动机构运动方向垂直的移动架；所述位移机构将治具及其上的裁片运送至所述移动架上,随后由所述移动架送至所述缝纫机处进行缝制。本发明仅需最多一名工作人员即可完成裁片治具的更换,工作效率较高,有效节省了人工成本,提高经济效益。(The invention relates to the field of automobile safety airbag processing equipment, in particular to an automatic double-station jig exchange sewing machine which comprises a rack, two grabbing assemblies, two storage racks and a sewing machine, wherein the rack comprises an underframe and a workbench top fixed at the top of the underframe, the grabbing assemblies and the storage racks are respectively and symmetrically arranged on two sides of the workbench top, and the sewing machine is arranged in the middle of the two grabbing assemblies; the grabbing assembly comprises a displacement mechanism and a limiting mechanism, and a moving frame perpendicular to the moving direction of the moving mechanism is further arranged on the working table top; the displacement mechanism conveys the jig and the cut pieces on the jig to the movable frame, and then the jig and the cut pieces are conveyed to the sewing machine by the movable frame to be sewn. The invention can complete the replacement of the cutting jig by only one operator at most, has higher working efficiency, effectively saves the labor cost and improves the economic benefit.)

1. The automatic double-station jig exchange sewing machine is characterized by comprising a rack, two grabbing assemblies, two storage racks and a sewing machine, wherein the rack comprises an underframe and a workbench top fixed on the top of the underframe;

the grabbing assembly comprises a displacement mechanism and a limiting mechanism, and a moving frame perpendicular to the moving direction of the moving mechanism is further arranged on the working table top;

the displacement mechanism conveys the jig and the cut pieces on the jig to the movable frame, and then the jig and the cut pieces are conveyed to the sewing machine by the movable frame to be sewn.

2. The automatic double-station jig exchange sewing machine according to claim 1, wherein the displacement mechanism comprises a suction mechanism and a moving mechanism, the moving mechanism is disposed below the rack and can move along a direction perpendicular to the moving direction of the moving rack, and the suction mechanism is disposed at an end of the moving mechanism and can suck the jig.

3. The automatic double-station jig exchange sewing machine according to claim 2, wherein the moving mechanism comprises a guide rail group fixed at the bottom of the storage rack, a connecting frame capable of freely moving along the guide rail group is arranged on the guide rail group, and the guide rail group is perpendicular to the arrangement direction of the moving frame.

4. The automatic double-station jig exchange sewing machine according to claim 3, wherein the suction mechanism comprises a telescopic cylinder which is arranged at the end of the first connecting piece and extends and retracts towards the jig, a chassis is fixed at the bottom of the telescopic cylinder, and a plurality of first electromagnets capable of sucking the jig are arranged on the upper surface of the chassis.

5. The automatic double-station jig exchange sewing machine according to claim 1, wherein the limiting mechanism comprises a support frame arranged below the worktable surface, a jacking cylinder is arranged on the support frame, a transition piece is arranged at the top of the jacking cylinder, and a limiting coaming is fixed on the transition piece.

6. The automatic double-station jig exchange sewing machine of claim 5, wherein the worktable surface is provided with an arc-shaped groove matched with the limiting coaming in shape, and when the jacking cylinder is lifted, the limiting coaming can extend out through the arc-shaped groove.

7. The automatic exchange sewing machine of a double-station jig according to claim 5, wherein the limiting coaming is provided with a groove matched with the edge of the jig.

8. The automatic double-station jig exchange sewing machine according to claim 1, further comprising a positioning mechanism, wherein the positioning mechanism comprises a second electromagnet and a third electromagnet which are respectively arranged at the starting position and the ending position of the displacement mechanism.

9. The automatic double-station jig exchange sewing machine of claim 8, wherein the worktable surface is provided with a plurality of accommodating holes, and the second electromagnet and the third electromagnet are accommodated in the accommodating holes.

10. The double-station jig automatic exchange sewing machine of claim 1, wherein a storage box is fixed to the top end of the storage rack.

Technical Field

The invention relates to the field of automobile safety airbag processing equipment, in particular to an automatic double-station jig exchanging sewing machine.

Background

Automobile air bag cut-parts need arrange the tool in the top and can sew, and the tool also is a fixed frock that commonly among the sewing process.

In the sewing process, after the sewing is finished, the original jig and the cut pieces need to be taken out, then the new jig and the new cut pieces are placed into the sewing machine, and next sewing can be carried out.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the defects, the double-station jig automatic exchange sewing machine which only needs one person is provided.

The specific scheme is as follows:

the double-station jig automatic exchange sewing machine comprises a rack, two grabbing assemblies, two storage racks and a sewing machine, wherein the rack comprises a bottom frame and a workbench surface fixed at the top of the bottom frame, the grabbing assemblies and the storage racks are respectively and symmetrically arranged on two sides of the workbench surface, and the sewing machine is arranged in the middle of the two grabbing assemblies;

the grabbing assembly comprises a displacement mechanism and a limiting mechanism, and a movable frame perpendicular to the movement direction of the moving mechanism is further arranged on the working table top;

the displacement mechanism conveys the jig and the cut pieces on the jig to the movable frame, and then the jig and the cut pieces are conveyed to the sewing machine by the movable frame to be sewn.

Further, the displacement mechanism comprises a sucking-up mechanism and a moving mechanism, the moving mechanism is arranged below the article shelf and can move along the direction perpendicular to the moving direction of the moving frame, and the sucking-up mechanism is arranged at the end part of the moving mechanism and can suck up the jig.

Further, moving mechanism is including being fixed in the guide rail group of supporter bottom, be provided with on the guide rail group and follow the link of guide rail group free movement, the guide rail group with it sets up the direction looks perpendicular to remove the frame.

Further, the suction mechanism comprises a telescopic cylinder which is arranged at the end part of the first connecting piece and stretches towards the jig direction, a base plate is fixed at the bottom of the telescopic cylinder, and a plurality of first electromagnets capable of attracting the jig are arranged on the upper surface of the base plate.

Further, stop gear including set up in table surface below the carriage, be provided with the jacking cylinder on the carriage, jacking cylinder top is provided with the transition piece, be fixed with the spacing bounding wall on the transition piece.

Furthermore, an arc-shaped groove matched with the limiting enclosing plate in shape is formed in the working table, and when the jacking cylinder is lifted, the limiting enclosing plate can extend out through the arc-shaped groove.

Furthermore, a groove matched with the edge of the jig is formed in the limiting enclosing plate.

Furthermore, the device also comprises a positioning mechanism, wherein the positioning mechanism comprises a second electromagnet and a third electromagnet which are respectively arranged at the starting position and the ending position of the displacement mechanism.

Furthermore, a plurality of accommodating holes are formed in the working table top, and the second electromagnet and the third electromagnet are accommodated in the accommodating holes.

Furthermore, a storage box is fixed at the top end of the storage rack.

Compared with the traditional technical scheme, the technical scheme of the invention has the advantages that:

1. the invention can complete the replacement of the cutting jig by only one operator at most, has higher working efficiency, effectively saves the labor cost and improves the economic benefit.

2. The invention adopts the magnetic attraction structure to automatically grab and put down the jig, does not need workers to send the jig to the sewing machine in person, and has higher automation degree.

3. The invention is also provided with a positioning mechanism which can accurately judge and confirm whether the position reached by the cutting piece is a reasonable position or not, so as to prevent the cutting piece from deviating.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

FIG. 2 is a schematic perspective view of the table top of the present invention after being connected to a sewing machine;

FIG. 3 is a schematic view of a grasping assembly according to the present invention;

FIG. 4 is a schematic view of the table top and the jig of the present invention in the initial position;

FIG. 5 is a rear side view angle schematic of FIG. 4;

FIG. 6 is a right side view schematic of FIG. 4;

fig. 7 is a schematic structural view of the limiting mechanism of the present invention.

Wherein:

A. a jig;

10. the device comprises a machine frame, 11 parts of a working table top, 111 parts of an arc-shaped groove, 112 parts of a containing hole and 12 parts of a movable frame;

20. grabbing the assembly;

30. the device comprises a displacement mechanism, 31, a moving mechanism, 311, a guide rail group, 312, a connecting frame, 32, a sucking mechanism, 321, a telescopic cylinder, 322, a chassis, 323 and a first electromagnet;

40. the device comprises a limiting mechanism, 41, a supporting frame, 42, a jacking cylinder, 43, a transition piece, 44, a limiting surrounding plate and 441, a groove;

50. a positioning mechanism, 51, a second electromagnet, 52, a third electromagnet;

60. a storage rack 61, a storage box;

70. a sewing machine.

Detailed Description

In light of the foregoing, it is intended that the following description be interpreted to cover all such alterations and modifications as fall within the true spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

The invention will be further illustrated with reference to the following figures:

referring to fig. 1, the automatic double-station jig exchanging sewing machine 70 includes a frame 10, two grabbing assemblies 20, two article holders 60 and a sewing machine 70, wherein the frame 10 includes an underframe and a worktable 11 fixed on the top of the underframe, the grabbing assemblies 20 and the article holders 60 are respectively and symmetrically disposed on two sides of the worktable 11, and the sewing machine 70 is disposed in the middle of the two grabbing assemblies 20;

the grabbing assembly 20 comprises a displacement mechanism 30 and a limiting mechanism 40, and a moving frame 12 perpendicular to the moving direction of the moving mechanism 31 is further arranged on the working table 11; the displacement mechanism 30 transports the jig and the cut pieces thereon to the movable frame 12, and then the jig and the cut pieces are transported to the sewing machine 70 from the movable frame 12 for sewing.

As shown in fig. 1, in the above-mentioned automatic double-station jig-changing sewing machine 70, the bottom of the frame 10 is a detachable and mountable frame structure built up by a metal frame, and universal wheels capable of moving freely are fixed at the bottom of the frame, so as to facilitate the movement of the whole machine.

The working table 11 is fixed on the top of the frame 10, in this embodiment, the working table 11 and the frame 10 are fixed by welding, but may be fixed by other fixing methods such as bonding or screws and bolts, and this embodiment is not limited thereto.

In the above-mentioned sewing machine 70, it can be seen that the sewing machine 70 with the head facing the working table 11 is disposed on the rear side edge of the frame 10, and the stepping hole is disposed on the working table 11 at the bottom of the head of the sewing machine 70, so as to facilitate the operation of the sewing machine 70. The left front part and the right front part of the sewing machine 70 are respectively provided with a grabbing assembly 20 symmetrically, and the outer side of the grabbing assembly 20 is provided with a storage rack 60. The shelf 60 is L-shaped, one side of which is perpendicular to the working table 11, the top of the other side is provided with a storage box 61, and a part of the grabbing assembly 20 is fixed below the storage box.

The movable frame 12 is installed on the working table 11 and designed at the rear end of the mechanism of the sewing machine 70 for receiving the jig sent from the grabbing assembly 20.

In the present invention, the jig is placed on the rack 60 at the initial position, and the worker takes out the jig from one side and places the jig on the gripper assembly 20, and the jig is transferred from the gripper assembly 20 to the movable frame 12, and then transferred from the movable frame 12 to the sewing machine 70 for sewing.

In the process, the operator can put the jig on the other side into the corresponding station, after the jig and the cut pieces thereon are sewn, the jig is sent out by the moving frame 12 and the grabbing assembly 20, and the jig which is not sent to one side of the sewing machine 70 is further sent into the sewing machine 70, and the process is repeated. The jig does not need to be taken manually, the jig to be sewn and the cut pieces can be placed in the sewing machine 70 in the working process by utilizing the gap time, and the production efficiency is high.

As shown in fig. 1-3, the displacement mechanism 30 includes a suction mechanism 32 and a moving mechanism 31, the moving mechanism 31 is disposed below the rack 60 and can move along a direction perpendicular to the moving direction of the moving rack 12, and the suction mechanism 32 is disposed at an end of the moving mechanism 31 and can suck the jig.

The moving mechanism 31 includes a guide rail set 311 fixed to the bottom of the rack 60, a connecting frame 312 capable of freely moving along the guide rail set 311 is disposed on the guide rail set 311, and the guide rail set 311 is perpendicular to the direction of the moving frame 12.

In the above-mentioned moving mechanism 31, the guide rail set 311 includes three parallel guide rails, one of which is a main guide rail and the other of which is a stabilizing guide rail, and the purpose of the guide rail set is to prevent the connecting frame 312 from falling and reduce the probability of the connecting frame 312 falling out. In this embodiment, the connecting frame 312 moves along the y-direction, and the moving frame 12 moves along the x-direction.

Inhale mechanism 32 including set up in first connecting piece tip, the flexible cylinder 321 towards the tool direction, flexible cylinder 321 bottom is fixed with chassis 322, chassis 322 upper surface is provided with the first electro-magnet 323 that a plurality of can attract the tool.

In the moving mechanism 31 and the sucking mechanism 32, as shown in fig. 3, the jig is made of iron in the middle circle, and the jig can be sucked by the electromagnet, so when the telescopic cylinder 321 is pressed down, the first electromagnet 323 on the chassis 322 is energized, and the first electromagnets 323 arranged can suck the jig.

In a specific implementation process, the first electromagnets 323 are uniformly arranged on the chassis 322, and generally 4 to 8 electromagnets, in this embodiment 6 electromagnets, are arranged.

The limiting mechanism 40 comprises a supporting frame 41 arranged below the working table 11, a jacking cylinder 42 is arranged on the supporting frame 41, a transition piece 43 is arranged at the top of the jacking cylinder 42, and a limiting coaming 44 is fixed on the transition piece 43.

An arc-shaped groove 111 matched with the limiting enclosing plate 44 in shape is formed in the working table 11, and when the jacking cylinder 42 is lifted, the limiting enclosing plate 44 can extend out through the arc-shaped groove 111.

The limiting enclosing plate 44 is provided with a groove 441 matched with the edge of the jig.

The limiting coaming 44 is arc-shaped, the inner shape of the limiting coaming is just matched with the appearance of the jig, and the inner shape of the limiting coaming 44 is also provided with a notch which is matched with the bulge on the side edge of the jig. When the jig is put down, the jig can be just embedded between the four limiting enclosing plates 44, so that the position of the jig can be ensured.

Under the effect of jacking cylinder 42, spacing bounding wall 44 and transition piece 43 pass arc 111 and stretch out or shrink, make things convenient for operating personnel to take or put down tool and cut-parts.

The positioning mechanism 50 is further provided, and the positioning mechanism 50 comprises a second electromagnet 51 and a third electromagnet 52 which are respectively arranged at the starting position and the ending position of the displacement mechanism 30.

The working table 11 is provided with a plurality of accommodating holes 112, and the second electromagnet 51 and the third electromagnet 52 are accommodated in the accommodating holes 112.

In the positioning mechanism 50, the electromagnets respectively arranged at the starting position and the ending position can attract the jig to reach the designated position when the suction mechanism 32 does not grab the jig, and when the suction mechanism 32 is powered on, the positioning mechanism 50 is powered off to release the jig.

A storage box 61 is fixed on the top of the storage rack 60. The storage box is provided with a treatment tool which is not sewed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.