CN217142855U

CN217142855U - Battery case welding clamping mechanism

Info

Publication number: CN217142855U
Application number: CN202123362956.0U
Authority: CN
Inventors: 马振强; 夏冬明; 王玉峰
Original assignee: Minth Automotive Technology Research and Development Co Ltd
Current assignee: Minth Automotive Technology Research and Development Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-08-09
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a battery case welding clamping mechanism relates to location structure's technical field, has solved the relatively poor and higher problem of cost of battery case welding position precision among the prior art, include: the mechanism body, driving piece and holder, the cylinder passes through the piston rod and drives the one end upward movement of first connecting rod and second connecting rod, the other end of second connecting rod drives the one end of third connecting rod and moves along the direction of seting up of spout, the other end drive side pressure arm of first connecting rod rotates, side pressure arm and the motion of second connecting rod cooperation drive third connecting rod, and drive the motion of last pressure arm, side pressure arm and last pressure arm are from two direction cooperation locking work pieces, and when the cylinder lasts the power supply, the position of connecting rod can be locked, avoid the influence that welding deformation power brought, improve positioning accuracy, adopt two pressure arms of single cylinder drive simultaneously, can reduce occupation space, and reduce cost.

Description

Battery case welding clamping mechanism

Technical Field

The utility model relates to a technical field of location structure refers in particular to a battery case welding clamping mechanism.

Background

Present battery case is aluminium system product, in its welding process, the aluminium material shrink to the size that leads to the battery case takes place slight shrink and changes, in prior art, in order to deal with the change that battery case welded dimension takes place, exert a great yawing force in the battery case side usually and carry out the pretension, but have the relation of the pretightning force of not determining well and deformation volume, can lead to the product location inaccurate, and adopt a plurality of cylinder hold-down mechanism, cause the rise of cost and occupation space too big problem.

Disclosure of Invention

The utility model discloses having considered aforementioned problem and having made, utility model's purpose provides a battery case welding clamping mechanism, two pressure arms of single cylinder drive compress tightly the work piece, save space, and can lock the dead pressure arm through the connecting rod, fix a position more accurately.

In order to achieve the above object, the utility model provides a battery case welding clamping mechanism, include:

a mechanism body;

the driving piece comprises a piston rod, a first connecting rod, a second connecting rod and a third connecting rod, a first hinge part is arranged on the first piston rod, a second hinge part and a third hinge part are arranged on the first connecting rod, a fourth hinge part and a fifth hinge part are arranged on the second connecting rod, a sixth hinge part and a seventh hinge part are arranged on the third connecting rod, and the second hinge part and the fourth hinge part are hinged to the first hinge part; the third hinge part is hinged to the mechanism body; the fifth hinge is hinged to the sixth hinge;

the clamping piece comprises a lateral pressing arm and an upper pressing arm, the upper pressing arm is fixed on the third connecting rod, an eighth hinge portion and a ninth hinge portion are arranged on the lateral pressing arm, the eighth hinge portion is hinged to the third hinge portion, and the ninth hinge portion is hinged to the seventh hinge portion.

According to the battery box welding and clamping mechanism, the limiting part for limiting the movement limit of the sixth hinge part is arranged on the mechanism body, and when the mechanism body is positioned at the movement limit, the side pressure arm and the upper pressure arm are positioned at the positions capable of pressing a workpiece.

According to the battery box welding and clamping mechanism, the sliding groove is formed in the mechanism body and comprises the first sliding section and the second sliding section, the second sliding section is obliquely connected with the first sliding section, and the groove wall of one end, far away from the piston rod, of the sliding groove forms the limiting part.

According to the battery box welding and clamping mechanism, the sixth hinge part is provided with the first through hole, the fifth hinge part is provided with the first hinge shaft, and the first hinge shaft penetrates through the first through hole and is movably clamped in the sliding groove.

According to the battery box welding and clamping mechanism, the cover plate is arranged on the mechanism body and is arranged on the outer side of the sliding groove.

According to the battery case welding clamping mechanism, the driving piece further comprises an air cylinder, the air cylinder is located below the mechanism body, one end of the piston rod is connected with the air cylinder, a joint is arranged at the other end of the piston rod, and the first hinging portion is arranged on the joint.

According to the battery box welding and clamping mechanism, the first hinge part is a first through hole, the second hinge part is a third through hole, the fourth hinge part is a fourth through hole, the second through hole, the third through hole and the fourth through hole are communicated, and a second hinge shaft is arranged in the through hole.

According to the battery box welding and clamping mechanism, the third hinge part is a fifth through hole, the eighth hinge part is a sixth through hole, the fifth through hole is communicated with the sixth through hole, a third hinge shaft is arranged in the through hole, and two ends of the third hinge shaft are rotatably connected with the mechanism body.

According to the battery case welding and clamping mechanism, the ninth hinge part is provided with the seventh through hole, the seventh hinge part is provided with the eighth through hole, the seventh through hole is communicated with the eighth through hole, and the fourth hinge shaft is arranged in the communication hole.

According to the above battery case welding clamping mechanism, the supporting seat is arranged on one side of the mechanism body, the supporting seat is provided with a first positioning block and a second positioning block, the side pressing arm is provided with a first abutting wheel, the upper pressing arm is provided with a second abutting wheel, and the first abutting wheel and the second abutting wheel are matched with the first positioning block and the second positioning block to clamp workpieces.

The utility model discloses following beneficial effect has: when the cylinder drives the first connecting rod and one end of the second connecting rod to move upwards through the piston rod, the other end of the second connecting rod drives one end of the third connecting rod to move along the opening direction of the sliding groove, the other end of the first connecting rod drives the side pressure arm to rotate, the side pressure arm and the second connecting rod are matched to drive the third connecting rod to move, and the upper pressure arm is driven to move, the side pressure arm and the upper pressure arm are matched to lock a workpiece from two directions, and when the cylinder continuously supplies force, the position of the connecting rod can be locked, the influence caused by welding deformation force is avoided, the positioning precision is improved, meanwhile, the single cylinder is adopted to drive the two pressure arms, the occupied space can be reduced, and the cost is reduced.

Drawings

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

fig. 2 is a schematic view of an assembly structure of the driving member and the mechanism body of the present invention;

FIG. 3 is a schematic view of the assembly structure of the driving member and the clamping member of the present invention;

fig. 4 is a schematic view of a first link structure of the present invention;

fig. 5 is a schematic view of a third link structure of the present invention;

FIG. 6 is a schematic view of the side press arm structure of the present invention;

fig. 7 is a schematic view of an assembly structure of the driving member and the second connecting rod of the present invention;

in the figure: 100. a mechanism body; 110. a chute; 120. a cover plate; 200. a drive member; 210. a piston rod; 211. a joint; 212. a second through hole; 220. a first link; 221. a third through hole; 222. a fifth through hole; 230. a second link; 231. a fourth via hole; 232. a first hinge shaft; 240. a third link; 241. a first through hole; 242. an eighth through hole; 250. a cylinder; 300. a clamping member; 310. a lateral pressure arm; 311. a sixth through hole; 312. a seventh via hole; 313. a first abutment wheel; 320. an upper pressure arm; 321. a second abutment wheel; 400. a supporting seat; 410. a first positioning block; 420. and a second positioning block.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 7, a battery case welding clamping mechanism includes:

the mechanism body 100, the mechanism body 100 is used for providing support for other components.

The driving member 200 comprises a piston rod 210, a first connecting rod 220, a second connecting rod 230 and a third connecting rod 240, wherein the first piston rod 210 is provided with a first hinge part, the first connecting rod 220 is provided with a second hinge part and a third hinge part, the second connecting rod 230 is provided with a fourth hinge part and a fifth hinge part, the third connecting rod 240 is provided with a sixth hinge part and a seventh hinge part, and the second hinge part and the fourth hinge part are both hinged to the first hinge part; the third hinge part is hinged to the mechanism body 100; the fifth hinge is hinged to the sixth hinge.

The clamping member 300 comprises a lateral pressing arm 310 and an upper pressing arm 320, the upper pressing arm 320 is fixed on the third connecting rod 240, the lateral pressing arm 310 is provided with an eighth hinge part and a ninth hinge part, the eighth hinge part is hinged to the third hinge part, the ninth hinge part is hinged to the seventh hinge part, wherein the lateral pressing arm 310, the first connecting rod 220, the second connecting rod 230 and the third connecting rod 240 form a four-bar linkage, when the piston rod 210 drives one end of the first connecting rod 220 and one end of the second connecting rod 230 to move upwards, the first connecting rod 220 drives the lateral pressing arm 310 to rotate towards the left until the lateral pressing arm 310 abuts against one side wall of a workpiece, the lateral pressing arm 310 drives one end of the third connecting rod 240 to move towards the left, the second connecting rod 230 drives the other end of the third connecting rod 240 to move upwards, one end of the third connecting rod 240 connected with the lateral pressing arm 310 rotates towards the left and then drives the upper pressing arm 320 to press the workpiece from the top, so that one driving member 200 simultaneously drives the lateral pressing arm 310 and the upper pressing arm 320 to clamp the workpiece, the occupied space is saved, and when the driving piece 200 provides a continuous upward force, the four-bar mechanism has a locking state, so that the positioning precision error caused by welding deformation force is eliminated, and the positioning precision is ensured.

The mechanism body 100 is provided with a limiting part for limiting the movement limit of the sixth hinge part, and when the sixth hinge part is at the movement limit, the side pressure arm 310 and the upper pressure arm 320 are at positions capable of pressing the workpiece, that is, when the sixth hinge part moves to the movement limit position, the sixth hinge part cannot continue to move in the original movement direction, at this time, the side pressure arm 310 and the upper pressure arm 320 cannot continue to move, and the side pressure arm 310 and the upper pressure arm 320 are in a locked state.

The sliding groove 110 is arranged on the mechanism body 100, the sliding groove 110 includes a first sliding section and a second sliding section, the second sliding section is inclined to be connected with the first sliding section, a groove wall of one end of the sliding groove 110 far away from the piston rod 210 forms a limiting part, namely, when the sixth hinge part moves to the top of the sliding groove 110, the sixth hinge part is at the movement limit, and the specific angle of the sliding groove 110 can be set through the rotation angle of the third connecting rod.

The sixth hinge portion is a first through hole 241, the fifth hinge portion is a first hinge shaft 232, the first hinge shaft 232 passes through the first through hole 241 and is movably clamped in the sliding groove 110, and both ends of the first hinge shaft 232 are provided with support rollers, and the support rollers slide in the sliding groove 110.

The mechanism body 100 is provided with a cover plate 120, the cover plate 120 is disposed outside the sliding groove 110, and the cover plate 120 is used for sealing the sliding groove 110.

The driving member 200 further includes an air cylinder 250, the air cylinder 250 is located below the mechanism body 100, one end of the piston rod 210 is connected to the air cylinder 250, the other end of the piston rod 210 is provided with a joint 211, the first hinge portion is arranged on the joint 211, and the air cylinder 250 drives the first connecting rod 220 and the second connecting rod 230 to move up and down and drives the first connecting rod 220 and the second connecting rod 230 to move through the joint 211.

The first hinge part is a first through hole, the second hinge part is a third through hole 221, the fourth hinge part is a fourth through hole 231, the second through hole 212, the third through hole 221 and the fourth through hole 231 are communicated, and a second hinge shaft is arranged in the communication hole.

The third hinge part is a fifth through hole 222, the eighth hinge part is a sixth through hole 311, the fifth through hole 222 is communicated with the sixth through hole 311, a third hinge shaft is arranged in the through hole, and two ends of the third hinge shaft are rotatably connected with the mechanism body 100.

The ninth hinge portion is provided with a seventh through hole 312, the seventh hinge portion is provided with an eighth through hole 242, the seventh through hole 312 is communicated with the eighth through hole 242, and a fourth hinge shaft is arranged in the communication hole.

The mechanism further comprises a supporting seat 400, the supporting seat 400 is arranged on one side of the mechanism body 100, a first positioning block 410 and a second positioning block 420 are arranged on the supporting seat 400, a first abutting wheel 313 is arranged on the side pressing arm 310, a second abutting wheel 321 is arranged on the upper pressing arm 320, the first abutting wheel 313, the second abutting wheel 321, the first positioning block 410 and the second positioning block 420 are matched to clamp a workpiece, the first positioning block 410 is used for supporting the bottom of the workpiece, the second positioning block 420 is used for supporting one side, away from the first abutting wheel 313, of the workpiece, and when the first abutting wheel 313 and the second abutting wheel 321 are abutted to the workpiece, the workpiece can be clamped.

The utility model provides a battery case welding clamping mechanism, cylinder 250 passes through the one end upward movement of piston rod 210 drive first connecting rod 220 and second connecting rod 230, the one end of the third connecting rod 240 of other end drive of second connecting rod 230 is followed spout 110 and is offered the direction motion, the other end drive side pressure arm 310 of first connecting rod 220 rotates, side pressure arm 310 and the third connecting rod 240 motion of second connecting rod 230 cooperation drive, and drive the motion of last pressure arm 320, side pressure arm 310 and last pressure arm 320 are from two direction cooperation locking work pieces, and when cylinder 250 lasts the power supply, the position of connecting rod can be locked, avoid the influence that welding deformation power brought, improve positioning accuracy, adopt two pressure arms of single cylinder 250 drive simultaneously, can reduce occupation space, and reduce cost.

The technical solutions of the present invention have been described in detail with reference to the accompanying drawings, and the described embodiments are used to help understand the ideas of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the claims.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A battery case welding clamping mechanism, comprising:

a mechanism body;

the driving piece comprises a piston rod, a first connecting rod, a second connecting rod and a third connecting rod, wherein a first hinge part is arranged on the piston rod, a second hinge part and a third hinge part are arranged on the first connecting rod, a fourth hinge part and a fifth hinge part are arranged on the second connecting rod, a sixth hinge part and a seventh hinge part are arranged on the third connecting rod, and the second hinge part and the fourth hinge part are both hinged to the first hinge part; the third hinge part is hinged to the mechanism body; the fifth hinge is hinged to the sixth hinge;

2. The clamping mechanism for welding the battery box as claimed in claim 1, wherein the mechanism body is provided with a limiting part for limiting the movement limit of the sixth hinge part, and at the movement limit, the side pressure arm and the upper pressure arm are located at positions capable of pressing the workpiece.

3. The battery box welding and clamping mechanism as claimed in claim 2, wherein the mechanism body is provided with a sliding groove, the sliding groove comprises a first sliding section and a second sliding section, the second sliding section is obliquely connected with the first sliding section, and a groove wall of one end of the sliding groove, which is far away from the piston rod, forms the limiting part.

4. A welding and clamping mechanism for a battery case as defined in claim 3, wherein said sixth hinge portion is formed as a first through hole, and said fifth hinge portion is formed as a first hinge shaft, and said first hinge shaft is movably inserted into said sliding groove through said first through hole.

5. A clamping mechanism for welding a battery box according to claim 3, wherein a cover plate is arranged on the mechanism body, and the cover plate is arranged outside the sliding groove.

6. A clamping mechanism for welding a battery box as claimed in claim 1, wherein said driving member further comprises a cylinder, said cylinder is located under said mechanism body, one end of said piston rod is connected to said cylinder, and a joint is provided on the other end of said piston rod, said first hinge portion is provided on said joint.

7. The battery pack welding and clamping mechanism according to claim 6, wherein said first hinge portion is provided with a second through hole, said second hinge portion is provided with a third through hole, said fourth hinge portion is provided with a fourth through hole, said second through hole, said third through hole and said fourth through hole are communicated, and a second hinge shaft is arranged in the communication hole.

8. A clamping mechanism for welding a battery box according to claim 7, wherein said third hinge part is a fifth through hole, said eighth hinge part is a sixth through hole, said fifth through hole is communicated with said sixth through hole, a third hinge shaft is arranged in said sixth through hole, and both ends of said third hinge shaft are rotatably connected with said mechanism body.

9. The battery pack welding and clamping mechanism according to claim 8, wherein said ninth hinge portion is provided with a seventh through hole, said seventh hinge portion is provided with an eighth through hole, said seventh through hole is communicated with said eighth through hole, and a fourth hinge shaft is arranged in said communication hole.

10. The clamping mechanism for battery box welding as claimed in claim 1, further comprising a supporting seat, wherein the supporting seat is disposed at one side of the mechanism body, the supporting seat is provided with a first positioning block and a second positioning block, the side pressing arm is provided with a first abutting wheel, the upper pressing arm is provided with a second abutting wheel, and the first abutting wheel and the second abutting wheel cooperate with the first positioning block and the second positioning block to clamp a workpiece.