Battery connecting piece welding positioning device

Abstract

The utility model discloses a battery connecting piece welding positioning device which comprises a first transverse clamping plate, a second transverse clamping plate, a first connecting piece sleeve and a second connecting piece sleeve. The transverse guide rail sequentially penetrates through the first connecting piece sleeve, the second connecting piece sleeve and the second transverse clamping plate. The side, close to the second transverse clamping plate, of the transverse guide rail is provided with transverse guide rail external threads and connected with a transverse locking nut. A first longitudinal clamping plate and a second longitudinal clamping plate are arranged on the two sides of the first connecting piece sleeve in the longitudinal direction, two longitudinal guide rails which are separated from each other are fixed to the side face of the first longitudinal clamping plate, and the longitudinal guide rails penetrate through the first connecting piece sleeve and the second longitudinal clamping plate. One side, close to the second longitudinal clamping plate, of the longitudinal guide rail is provided with longitudinal guide rail external threads and is connected with a longitudinal locking nut. According to the utility model, rapid positioning during welding of the battery connecting piece can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding positioning, in particular to a battery connecting piece welding positioning device. Background Art

[0002] When testing and certifying square lithium-ion batteries, it is necessary to weld connecting pieces on the poles so that current can be connected for testing. The pole is a protruding cylinder on the battery cover with a positioning hole in the center of the pole. The connecting piece is an L-shaped rectangular sheet metal plate with a welding positioning hole at one end and a round hole for connecting the test tool at the other end. The welding process is to place the end of the connecting piece with the welding positioning hole on the battery pole and align the welding positioning hole with the positioning hole on the pole. The connecting pieces on the positive and negative poles are oriented in the same direction and parallel to the length direction of the battery cover. The connecting piece welding uses laser welding to weld the connecting piece to the battery pole at the positioning hole, and finally affix protective paper tape to the connecting piece for insulation protection.

[0003] In the prior art, the method of fixing the connecting piece on the positive and negative poles of the square battery for welding is to stick the fixing tape. The sticking method is to align the positioning holes and then stick the tape around the welding end of the connecting piece to fix it, and then perform laser welding. After the welding is completed, the fixing tape is torn off and the protective paper tape is to be pasted. The method of sticking tape is time-consuming and labor-intensive. First, there is a positional relationship between the connecting piece and the pole in multiple directions of up and down translation, front and back translation, left and right translation and rotation. It is necessary to stick tape at multiple positions of the connecting piece for fixing, and the fixing relationship is not firm. Secondly, welding slag may splash during the welding process. If the welding slag splashes onto the battery cover, it will cause contamination of the cover. After the welding is completed again, the tape needs to be torn off to avoid affecting subsequent tests. On the one hand, it causes a waste of tape. On the other hand, after the welding is completed, the temperature of the connecting piece is high and it takes time to cool down, which is easy to cause burns to people. Finally, the method of sticking tape is inefficient and time-consuming.

[0004] CN211102244U discloses a battery connecting piece welding device, which presses the connecting piece onto the battery pole by installing a bracket for welding, thereby increasing the effective welding area and avoiding waste of manpower and materials. However, the process of installing the battery in the bracket during welding is not simple, and each time a battery connecting piece is welded, the bracket, the position relationship between the connecting piece and the battery need to be adjusted, resulting in a waste of time and affecting work efficiency.

[0005] CN209465869U discloses a power battery pole connecting piece welding auxiliary device, which loads the battery through a box with a cavity, and realizes the positioning of the connecting piece and the battery pole through a cover plate. However, since the size of the cavity and the cover plate is fixed, this device is only applicable to one type of battery. For multiple types of batteries, multiple devices of the same type are required to weld the connecting piece, resulting in a waste of resources. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and to provide a battery connecting piece welding positioning device, which can position the connecting pieces of multiple batteries through one adjustment, and can also position the connecting pieces of batteries of various sizes and models through adjustment.

[0007] A battery connecting piece welding positioning device comprises a first transverse clamping plate, a second transverse clamping plate, a first connecting piece sleeve and a second connecting piece sleeve, two mutually spaced transverse guide rails are fixed on the side surface of the first transverse clamping plate, and the transverse guide rail passes through the first connecting piece sleeve, the second connecting piece sleeve and the second transverse clamping plate in sequence, and the first connecting piece sleeve, the second connecting piece sleeve and the second transverse clamping plate can move on the transverse guide rail to adjust the position, and the transverse guide rail is provided with a transverse guide rail external thread on the side close to the second transverse clamping plate and is connected to a transverse locking nut; a first longitudinal clamping plate and a second longitudinal clamping plate are arranged on both sides of the longitudinal direction of the first connecting piece sleeve, two mutually spaced longitudinal guide rails are fixed on the side surface of the first longitudinal clamping plate, the longitudinal guide rail passes through the first connecting piece sleeve and the second longitudinal clamping plate, and the second longitudinal clamping plate can move on the longitudinal guide rail, and the longitudinal guide rail is provided with a longitudinal guide rail external thread on the side close to the second longitudinal clamping plate and is connected to a longitudinal locking nut.

[0008] Wherein, the longitudinal guide rail is located above the transverse guide rail.

[0009] Wherein, the longitudinal guide rail and the transverse guide rail are cylindrical guide rails.

[0010] Wherein, the first connecting piece sleeve is arranged with a transverse guide rail matching hole and a longitudinal guide rail matching hole which are slidably matched with the longitudinal guide rail and the transverse guide rail.

[0011] Wherein, a transverse guide rail matching hole for slidingly matching with the transverse guide rail is arranged on the second connecting piece sleeve.

[0012] The first connecting piece sleeve and the second connecting piece sleeve have the same shape.

[0013] The first connecting piece sleeve and the second connecting piece sleeve define a rectangular positioning space inside to match the battery connecting piece.

[0014] Wherein, the first connecting piece sleeve and the second connecting piece sleeve are rectangular frame structures.

[0015] Wherein, transverse locking bolts are arranged on the corresponding sides of the first connecting piece sleeve and the second connecting piece sleeve, which are used to abut against the transverse guide rail to lock and fix the first connecting piece sleeve and the second connecting piece sleeve on the transverse guide rail after the first connecting piece sleeve and the second connecting piece sleeve are moved to predetermined positions.

[0016] Wherein, the first connecting piece sleeve is provided with a longitudinal locking bolt to fix the first connecting piece sleeve to the longitudinal guide rail.

[0017] The battery connecting piece welding positioning device of the utility model fixes the battery by two pairs of clamping plates, and the connecting piece sleeve is moved and positioned on the guide rail between the clamping plates and then fixed by bolts, and then the connecting piece is placed in the sleeve for welding.

[0018] Compared with the existing devices, for the same type of square batteries, the device only needs to be adjusted once to weld the connecting pieces of multiple batteries. The operation is simple and time-saving and labor-saving. At the same time, the device is suitable for welding battery connecting pieces of various types of square batteries and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the battery connecting piece welding positioning device of the utility model.

[0020] Figure 2 It is a schematic diagram of the connection between the first transverse clamping plate and the transverse guide rail of the utility model.

[0021] Figure 3 This is a structural diagram of the first connecting piece sleeve of the utility model.

[0022] Figure 4 The figure is a schematic diagram of a battery clamping device for welding and positioning a battery connector according to the present invention.

[0023] Description of reference numerals:

[0024] 1-first transverse clamping plate, 2-first connecting plate sleeve, 3-second longitudinal clamping plate, 4-second connecting plate sleeve, 5-second transverse clamping plate, 6-transverse locking nut, 7-transverse locking bolt, 8-first longitudinal clamping plate, 9-longitudinal locking nut, 10-longitudinal locking bolt, 11-transverse guide rail, 12-longitudinal guide rail, 13-transverse guide rail external thread, 14-longitudinal guide rail external thread, 21-longitudinal guide rail matching hole, 22-transverse guide rail matching hole, 23-longitudinal locking bolt hole, 24-transverse locking bolt hole. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The battery connecting piece welding positioning device of the embodiment of the utility model realizes rapid positioning of the battery connecting piece by moving the connecting piece sleeve on the transverse and longitudinal guide rails.

[0027] like Figures 1 to 4 As shown, the battery connecting piece welding positioning device of the utility model embodiment includes a first transverse clamping plate 1, a second transverse clamping plate 5, a first connecting piece sleeve 2 and a second connecting piece sleeve 4, two mutually spaced transverse guide rails 11 are fixed on the side of the first transverse clamping plate, and the transverse guide rail 22 passes through the first connecting piece sleeve 2, the second connecting piece sleeve 4 and the second transverse clamping plate 5 in sequence, and the first connecting piece sleeve 2, the second connecting piece sleeve 4 and the second transverse clamping plate 5 can move on the transverse guide rail 11 to adjust the position, and the transverse guide rail 11 is close to the second One side of the transverse clamp 5 is provided with a transverse guide rail external thread 13 and is connected to the transverse locking nut 6; the second longitudinal clamp 3 and the first longitudinal clamp 8 are arranged on both sides of the longitudinal direction of the first connecting plate sleeve 2, and two longitudinal guide rails 12 separated from each other are fixed on the side of the first longitudinal clamp, and the longitudinal guide rail passes through the first connecting plate sleeve 2 and the second longitudinal clamp 3, and the second longitudinal clamp 3 can move on the longitudinal guide rail 12, and the longitudinal guide rail 12 is provided with a longitudinal guide rail external thread 14 on the side close to the second longitudinal clamp 3 and is connected to the longitudinal locking nut 9.

[0028] Optionally, the longitudinal guide rail 12 is horizontally located above the transverse guide rail 11. Optionally, the longitudinal guide rail 12 and the transverse guide rail 11 are cylindrical guide rails.

[0029] like Figure 3 As shown, the first connecting plate sleeve 2 is provided with a transverse guide rail matching hole 22 and a longitudinal guide rail matching hole 21 which are slidably matched with the longitudinal guide rail 12 and the transverse guide rail 11 , wherein the second connecting plate sleeve 4 is provided with a transverse guide rail matching hole which is slidably matched with the transverse guide rail 11 .

[0030] Optionally, the first connecting piece sleeve 2 and the second connecting piece sleeve 4 have the same shape. Optionally, the first connecting piece sleeve 2 and the second connecting piece sleeve 4 define a rectangular positioning space that cooperates with the battery connecting piece 9. Preferably, the first connecting piece sleeve 2 and the second connecting piece sleeve 4 are rectangular frame structures.

[0031] like Figure 3As shown, transverse locking bolts 7 are arranged in the transverse locking bolt holes 24 on the corresponding sides of the first connecting piece sleeve 2 and the second connecting piece sleeve 4, which are used to abut against the transverse guide rail 11 to lock and fix the first connecting piece sleeve and the second connecting piece sleeve on the transverse guide rail after the first connecting piece sleeve 2 and the second connecting piece sleeve 4 move to a predetermined position. Among them, longitudinal locking bolts 10 are arranged in the longitudinal locking bolt holes 23 on the first connecting piece sleeve 2 to fix the first connecting piece sleeve to the longitudinal guide rail.

[0032] Optionally, the first connecting plate sleeve 2 and the second connecting plate sleeve 4 are both made of alumina ceramic material, which can provide insulation protection, achieve good heat insulation effect, and prevent welding slag splashing during the welding process from contaminating the battery cover.

[0033] In the present application, except for the first connecting plate sleeve and the second connecting plate sleeve which are both made of alumina ceramic, the remaining parts are made of stainless steel.

[0034] like Figure 2 As shown, the first transverse clamping plate is provided with two cylindrical transverse guide rails 11 with transverse guide rail external threads 13. When installed, the two cylindrical transverse guide rails 11 pass through the transverse guide rail matching holes of the circular hole structure of the lower part of the first connecting piece sleeve 2 and the second connecting piece sleeve 4 respectively, as shown in FIG. Figure 3 The transverse guide rail matching hole 22 on the first connecting piece sleeve 2 (the second connecting piece sleeve 4 has a corresponding transverse guide rail matching hole) and the circular hole at the corresponding position on the second transverse clamping plate 5 are used to clamp the battery 10 transversely through two transverse locking nuts 6 and the external threads on the transverse guide rail 11. Among them, two cylindrical longitudinal guide rails 12 with longitudinal guide rail external threads 14 at the tail ends are also fixed on the first longitudinal clamping plate 8. When installed, the cylindrical longitudinal guide rails 12 pass through the circular holes on the upper part of the first connecting piece sleeve 2 (such as Figure 3 The longitudinal guide rail matching hole 21 on the first connecting piece sleeve shown in the figure, and the circular hole at the corresponding position on the second longitudinal clamping plate 3, are also screwed with two hexagonal nuts (such as Figure 1 The longitudinal locking nut 9) shown cooperates with the external threads on the longitudinal guide rail 12 to clamp the battery longitudinally.

[0035] Among them, the first connecting piece sleeve 2 can drive the second connecting piece sleeve 4 to move longitudinally and position on the longitudinal guide rail 12. At the same time, the first connecting piece sleeve 2 and the second connecting piece sleeve 4 can be moved and positioned on the transverse guide rail 11. After the two are positioned at the appropriate positions, the locking bolts of the hexagonal bolt structure are tightened to fix the positional relationship between the first connecting piece sleeve 2 and the second connecting piece sleeve 4 and the transverse guide rail and the longitudinal guide rail.

[0036] like Figure 4As shown, when in use, the battery is clamped by the first transverse clamping plate, the second transverse clamping plate and the first longitudinal clamping plate, the second longitudinal clamping plate, the first connecting piece sleeve and the second connecting piece sleeve move on the transverse guide rail and the longitudinal guide rail, the connecting piece welding position is positioned, and the device is fixed by tightening the transverse locking nut in the form of a hexagonal nut, the longitudinal locking nut and the transverse locking bolt in the form of a hexagonal bolt, and the longitudinal locking bolt, and then the battery connecting piece is placed for welding. After welding is completed, the device is removed and directly placed on the next battery and then the connecting piece is placed for welding, which improves the efficiency of connecting piece welding and saves time and effort. When replacing batteries of different sizes, the device needs to be readjusted once, and multiple batteries can be welded.

[0037] When the device of the utility model is used and installed, the first connecting piece sleeve, the second connecting piece sleeve, the second transverse clamping plate and two transverse locking nuts in the form of hexagonal nuts are first installed in sequence on the transverse guide rail connected to the first transverse clamping plate, and then the longitudinal guide rail connected to the first longitudinal clamping plate is passed through the first connecting piece sleeve, the second longitudinal clamping plate and two other longitudinal locking nuts in the form of hexagonal nuts in sequence.

[0038] When positioning specifically, Figure 4 As shown, first place the battery 10, adjust and lock the transverse locking nut so that the battery 10 can be clamped in the transverse direction, then move the first connecting piece sleeve and the second connecting piece sleeve for transverse positioning, tighten the two transverse locking bolts in the form of hexagonal bolts under the first connecting piece sleeve and the second connecting piece sleeve, and lock the longitudinal locking nut to clamp the battery in the longitudinal direction. Then loosen the transverse locking nut to move the first connecting piece sleeve and the second connecting piece sleeve on the longitudinal guide rail for positioning. After the longitudinal movement and positioning, tighten the longitudinal locking bolts and transverse locking nuts in the form of hexagonal bolts on the upper part of the first connecting piece sleeve. At this point, the device is adjusted, and two connecting pieces 9 in the same direction are placed inside the first connecting piece sleeve and the second connecting piece sleeve for welding, as shown in FIG. Figure 4 shown.

[0039] After the welding of the connecting piece on one battery is completed, the device of the utility model is removed from the battery and placed on the next battery 10 to be welded, and then two connecting pieces 9 are placed for welding, and this process is repeated to complete the welding of multiple battery connecting pieces.

[0040] The battery connector welding positioning device of the utility model can realize rapid positioning of the battery connector during welding, realizes the functions of insulation, heat insulation and prevention of welding slag splashing through the connector sleeve, replaces the tape sticking method to reduce the waste of tape, and avoids the explosion point and the like that may be caused by laser contact with the tape.

[0041] The battery connecting piece welding positioning device of the utility model can be used for the welding positioning of square battery connecting pieces, and solves the shortcomings of the traditional method of sticking tape, such as low efficiency, inaccurate positioning, secondary pollution and time-consuming and labor-intensive. Compared with the existing patented technology, it can realize the positioning welding of multiple batteries at one time, and can be suitable for welding connecting pieces of various types of batteries through device adjustment, and has wide adaptability.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

[0043] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery connector welding positioning device, characterized in that: The cam is a cross-linked structure in which the first and second connecting plates are connected, and the two connecting plates are connected in a direction of rotation from the center of the cam, so that the cam can move relative to the first connecting plate and the second connecting plate respectively.

2. The battery connector welding positioning device according to claim 1, characterized in that: The longitudinal guide rail is located above the transverse guide rail.

3. The battery connector welding positioning device according to claim 1, characterized in that: The longitudinal guide rail and the transverse guide rail are cylindrical guide rails.

4. The battery connector welding positioning device according to claim 1, characterized in that: The first connecting piece sleeve is provided with a transverse guide rail matching hole and a longitudinal guide rail matching hole which are slidably matched with the longitudinal guide rail and the transverse guide rail.

5. The battery connector welding positioning device according to claim 1, characterized in that: The second connecting piece sleeve is provided with a transverse guide rail matching hole which is slidably matched with the transverse guide rail.

6. The battery connector welding positioning device according to claim 1, characterized in that: The first connecting piece sleeve and the second connecting piece sleeve have the same shape.

7. The battery connector welding positioning device according to claim 1, characterized in that: The first connecting piece sleeve and the second connecting piece sleeve define a rectangular positioning space that matches the battery connecting piece.

8. The battery connector welding positioning device according to claim 1, characterized in that: The first connecting piece sleeve and the second connecting piece sleeve are rectangular frame structures.

9. The battery connector welding positioning device according to claim 1, characterized in that: Transverse locking bolts are arranged on the corresponding sides of the first connecting piece sleeve and the second connecting piece sleeve, which are used to abut against the transverse guide rail to lock and fix the first connecting piece sleeve and the second connecting piece sleeve on the transverse guide rail after the first connecting piece sleeve and the second connecting piece sleeve move to a predetermined position.

10. The battery connecting piece welding positioning device according to claim 1, characterized in that: The first connecting piece sleeve is provided with a longitudinal locking bolt to fix the first connecting piece sleeve to the longitudinal guide rail.

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