Positioning clamping jaw

Abstract

The utility model discloses a locating clamping jaw which comprises two sets of clamping jaw arms which are symmetrically arranged, each set of clamping jaw arm comprises a clamping portion, an extending portion and a fixing portion, the clamping portion is perpendicularly connected with the extending portion, and the extending portion and the fixing portion are arranged on the same straight line. A groove is formed in one end, far away from the extension part, of the clamping part; the groove is clamped with an external conducting strip; two sets of clamping holes are formed in the end, away from the extending part, of the fixing part and are arranged in parallel. The positioning device solves the problem that positioning is inaccurate due to the fact that an existing positioning device abuts against a protruding platform of the conducting strip.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery welding, and in particular relates to a positioning clamping claw. Background Art

[0002] During the battery welding process, the conductive sheet is connected to the battery cell through the adapter, and then the conductive sheet is connected to the pole, and the pole is connected to the load, finally forming a closed circuit. In the assembly section of the lithium battery, laser welding technology is needed to weld the adapter to the conductive sheet on the top cover. During the welding process, there will be a problem of adapter offset. The offset of the adapter will cause the main body of the winding core to extend beyond the side of the top cover, making it difficult to enter the shell or even damage the battery cell. To prevent the adapter from offsetting, a mechanism is needed to be used for positioning during laser welding before welding. The existing positioning mechanism uses a horizontal clamp to clamp and press the adapter at the relative position of the conductive sheet for welding; but the existing conductive sheet protrudes above the top cover of the plastic sheet plane under the top cover. Chinese utility model patent CN220127984U discloses a positioning device for welding a battery cover plate and an adapter plate, the device includes a supporting positioning member and a clamping positioning member, the supporting positioning member is used to locate the relative position of the adapter plate and the cover plate; the clamping positioning member includes two positioning jaws for clamping the above-mentioned adapter plate, and the above-mentioned positioning jaws are provided with a positioning portion, and the above-mentioned positioning portion is used to continuously press the above-mentioned positioning adapter plate when the welding protection cover covers the adapter plate for welding. The positioning jaw has the problem of pressing against the raised platform of the conductive plate, resulting in inaccurate positioning, and the positioning structure needs to be redesigned. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a positioning clamping claw, which solves the problem of inaccurate positioning caused by the raised platform of the conductive sheet in the existing positioning device.

[0004] The technical solution of the utility model is: the utility model provides a positioning clamp, comprising: two groups of symmetrically arranged clamp arms, each group of the clamp arms comprising a clamping portion, an extending portion and a fixing portion, the clamping portion is vertically connected to the extending portion, and the extending portion and the fixing portion are arranged on the same straight line;

[0005] A groove is provided at one end of the clamping portion away from the extending portion, and the groove is clamped with the external conductive sheet;

[0006] One end of the fixing portion away from the extending portion is provided with two groups of locking holes, and the two groups of locking holes are arranged in parallel.

[0007] Furthermore, a stopper is provided on the groove, and the stopper is provided on a side away from the conductive sheet.

[0008] Furthermore, a group of bolts is provided in each group of the locking holes, and the fixing portion is detachably connected to the external driving member.

[0009] Furthermore, the locking hole is a long hole, and the bolt structure is slidably connected to the locking hole.

[0010] Furthermore, the height of the groove in the vertical direction is the same as the thickness of the conductive sheet.

[0011] Furthermore, the extension parts of the two groups of clamping jaw arms are arranged in parallel, and the sides of the two groups of extension parts away from the ground are arranged on the same horizontal plane.

[0012] Furthermore, a connecting block is provided on a side of the fixing portion facing the extending portion, and a height of the connecting block facing the extending portion is greater than a height of the connecting block facing the locking hole.

[0013] Furthermore, a side of the connecting block away from the ground in the vertical direction is flush with a side of the extending portion away from the ground.

[0014] Furthermore, the clamping portion, the extending portion and the fixing portion are integrally formed.

[0015] Furthermore, the clamping portion, the extending portion and the fixing portion are all made of metal.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a positioning clamp, which is provided with two groups of clamp arms, each group of clamp arms is respectively provided with a clamping part, an extension part and a fixing part, a groove is provided at one end of the clamping part away from the extension part, which is used to fix the raised conductive sheet in the horizontal direction, the extension part is vertically connected to the clamping part, and the conductive sheet is pressed in the vertical direction by applying pressure in the vertical direction on the extension part to ensure that the conductive sheet is in the middle of the adapter sheet, there is no gap between the two, and the positioning is stable, and a positioning hole is provided at one end of the fixing part away from the extension part to fix the entire positioning clamp on the driving part to control the opening and closing of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a first structure of a positioning clamp provided in an embodiment of the present application;

[0019] Figure 2 A second structural diagram of a positioning clamp provided in an embodiment of the present application

[0020] Figure 3 A schematic diagram of the working state of a positioning clamp provided in an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1-clamping part, 2-extension part, 3-fixing part, 4-conductive sheet, 5-adapter sheet, 6-protective cover;

[0023] 11-groove, 12-stop portion, 31-positioning hole, 32-connecting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the present invention, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0026] The following is a detailed description of the implementation of the present invention in conjunction with the specific drawings:

[0027] Figure 1 A first structural schematic diagram of a positioning clamp provided in this embodiment, Figure 2 A second structural diagram of a positioning clamp provided in this embodiment; Figure 1 and Figure 2The positioning clamp includes two groups of symmetrically arranged clamp arms, each group of clamp arms includes a clamping portion 1, an extension portion 2 and a fixing portion 3, the clamping portion 1 is vertically connected to the extension portion 2, the extension portion 2 and the fixing portion 3 are arranged on the same straight line, an inclined surface is arranged on the outer side of one end where the clamping portion 1 is connected to the extension portion 2, the clamp arm is fixed by the fixing portion 3, a vertical downward force is applied to the extension portion 2, and the workpiece to be welded is pressed by the clamping portion 1, a groove 11 is arranged at one end of the clamping portion 1 close to the conductive sheet, and the two groups of grooves 11 are symmetrically arranged toward one side of the central axis of the positioning clamp The groove 11 is engaged with the conductive sheet, and the groove 11 is used to fix the conductive sheet 4 in the horizontal direction. A stopper 12 is provided on the side of the groove 11 away from the conductive sheet. The stopper 12 is provided on the side away from the central axis of the positioning clamp. The stopper 12 is a rectangular block. Two groups of symmetrically arranged stoppers 12 will fix the conductive sheet 4 in the middle of the adapter sheet 5 in the horizontal direction. The groove 11 and the stopper 12 work together to fit the conductive sheet 4 and the adapter sheet 5 to ensure that the adapter sheet 5 will not slip out of the clamp range. There is no gap between the conductive sheet 4 and the adapter sheet 5 during welding.

[0028] In a specific implementation process, the height of the groove 11 in the vertical direction is set to be the same as the thickness of the conductive sheet 4 , and the conductive sheet 4 and the adapter sheet 5 are clamped and pressed in the vertical direction to ensure that the conductive sheet 4 is located in the middle of the adapter sheet 5 .

[0029] Two groups of locking holes 31 are provided at one end of the fixing portion 3 away from the extending portion 2. The two groups of locking holes 31 are arranged in parallel. A group of bolts is provided in each group of locking holes 31. The fixing portion 3 is fixed to the driving structure by the bolts. Preferably, the locking holes 31 are long holes. The bolts are slidably connected to the locking holes to adjust the spacing between the clamping claw arms. After adjustment, the two groups of bolts are locked.

[0030] A connecting block 32 is provided on the side of the fixing portion 3 facing the extension portion 2. The height of the connecting block 32 facing the extension portion 2 is greater than the height of the connecting block 32 facing the positioning hole 31. The side of the connecting block 32 facing the ground and the side away from the ground are both inclined surfaces to avoid the welding table. The cross-section of the connecting block 32 is a parallelogram. The end of the side of the connecting block 32 close to the extension portion 2 away from the center axis of the clamp is connected to the extension portion 2, so as to enlarge the distance between the two clamp arms for facilitating welding operations and at the same time increase the height of the extension portion 2 to prevent positioning failure due to insufficient clamp height.

[0031] The clamping portion 1, the extending portion 2 and the fixing portion 3 are integrally formed by metal forging to increase the structural strength of the positioning clamp.

[0032] Figure 3 A schematic diagram of the working of a positioning clamp provided in this embodiment is shown as follows: Figure 3As shown, the extensions 2 on the two groups of jaw arms are parallel in the horizontal direction, and the two groups of extensions 2 are arranged on the same horizontal plane with their vertically upward sides. During the welding process, the protective cover 6 presses the upper part of the extension 2 to press the entire positioning jaw onto the conductive sheet 4 and the adapter sheet 5 to be welded. The device is stably positioned to ensure that there is no gap between the conductive sheet 4 and the adapter sheet 5 during welding.

[0033] Before welding, place the conductive sheet 4 in the middle of the adapter sheet 5, drive the two groups of clamping arms close to the conductive sheet 4, adjust the bolts in the positioning hole 31, adjust the positioning left and right and lock it, clamp the groove 11 of the clamping part 1 with the conductive sheet 4, and fit the two sides of the stopper 12 with the two sides of the conductive sheet 4 to complete the horizontal fixation, then cover the protective cover 6 to press the extension 2 of the clamping jaw, and the extension 2 applies a vertical force to the clamping part 1 to complete the vertical fixation, and send the whole to the welding area. There are three groups of openings on the protective cover 6, and the middle opening corresponds to the gap between the two groups of extensions 2. The welding device extends from the opening to perform welding operations. The upper and lower groups of openings are connected to the middle opening to introduce protective gas and exhaust gas during welding. The positioning jaws in this application are not easy to deviate during welding, and the extension 2 is at a high height from the workbench to prevent positioning failure caused by insufficient height of the horizontal jaws.

[0034] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0035] Note that in the description of this specification, the reference terms "some embodiments", "other embodiments", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A positioning clamp, characterized in that: include: Two groups of symmetrically arranged clamping arms, each group of the clamping arms comprises a clamping portion, an extending portion and a fixing portion, the clamping portion is vertically connected to the extending portion, and the extending portion and the fixing portion are arranged on the same straight line; A groove is provided at one end of the clamping portion away from the extending portion, and the groove is clamped with the external conductive sheet; One end of the fixing portion away from the extending portion is provided with two groups of locking holes, and the two groups of locking holes are arranged in parallel.

2. A positioning clamp as claimed in claim 1, characterized in that: A stopping portion is provided on the groove, and the stopping portion is arranged on a side away from the conductive sheet.

3. A positioning clamp as claimed in claim 1, characterized in that: A group of bolts is arranged in each group of the positioning holes, and the fixing part is detachably connected to the external driving member.

4. A positioning clamp as claimed in claim 3, characterized in that: The locking hole is a long hole, and the bolt is slidably connected to the locking hole.

5. A positioning clamp as claimed in claim 1, characterized in that: The height of the groove in the vertical direction is the same as the thickness of the conductive sheet.

6. A positioning clamp as claimed in claim 1, characterized in that: The extension parts of the two groups of clamping claw arms are arranged in parallel, and the sides of the two groups of extension parts away from the ground are arranged on the same horizontal plane.

7. A positioning clamp as claimed in claim 1, characterized in that: A connecting block is provided on one side of the fixing portion facing the extending portion, and a height of the connecting block facing the extending portion is greater than a height of the connecting block facing the locking hole.

8. A positioning clamp as claimed in claim 7, characterized in that: A side of the connecting block away from the ground in a vertical direction is flush with a side of the extending portion away from the ground.

9. A positioning clamp as claimed in claim 1, characterized in that: The clamping portion, the extending portion and the fixing portion are integrally formed.

10. A positioning clamp as claimed in claim 1, characterized in that: The clamping portion, the extending portion and the fixing portion are all made of metal.

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