Aluminum bar fixing device for automobile battery welding

Abstract

The utility model discloses an aluminum bar fixing device for automobile battery welding. The aluminum bar fixing device comprises a device body, a limiting mechanism and an auxiliary moving mechanism. A positioning head is connected below the auxiliary moving mechanism; a plurality of groups of limiting mechanisms are arranged at intervals; each group of limiting mechanism comprises a fixed block, a guide column, a pressing plate and a clamping strip; the fixed block is vertically fixed on the working table of the device main body, and the pressing plate guide column is assembled and connected with the fixed block; a first spring is further connected between the pressing plate and the fixing block; an aluminum bar clamping opening is formed in the pressing plate, and an inner cavity is formed in the aluminum bar clamping opening; the clamping strips are mounted in the inner cavity and are symmetrically distributed at the aluminum bar clamping opening; a partition plate is fixed in the inner cavity, and a second spring is connected between each clamping strip and the partition plate. The position of the aluminum bar main body is kept consistent with the welding position of the battery main body, and the situation of subsequent pseudo soldering caused by movement during welding is prevented, so that the welding precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium bar fixing device, especially a kind of aluminium bar fixing device for automobile battery welding. BACKGROUND

[0002] Aluminium bar is a kind of conductive material for battery connection, it acts as conductive bridge between battery and other electronic components, responsible for transmission current, aluminium bar is widely used in lithium ion battery, energy storage system and electric vehicle etc. field because of its light, low cost and good conductivity.

[0003] In automobile battery production, aluminium bar needs to be welded with battery, when existing aluminium bar is connected to battery, it is usually placed directly on the welding position of battery, in the process of welding, due to the action of heat, aluminium bar can be expanded by heat, or move due to the pressure applied by welding equipment, leading to poor welding, uneven welding point, and further affecting the strength of welding and the performance of current conduction, therefore, it is urgent to provide a kind of aluminium bar fixing device for battery welding to avoid the occurrence of above situation. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a kind of aluminium bar fixing device for automobile battery welding.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme that a kind of aluminium bar fixing device for automobile battery welding, including device main body, limit mechanism is arranged on the workbench surface of device main body, auxiliary moving mechanism is arranged at the top wall of the top of device main body;

[0006] The lower portion of auxiliary moving mechanism is connected with positioning head;

[0007] Limit mechanism is arranged at intervals with multiple groups, and each limit mechanism includes fixed block, guide column, pressing plate and clamping strip;

[0008] Fixed block is vertically fixed on the workbench surface of device main body, pressing plate is distributed above fixed block and is assembled and connected with fixed block at end position through guide column;First spring is also connected between pressing plate and fixed block;

[0009] Aluminium bar clamping opening is formed in the inner wall of pressing plate, and inner cavity is formed in the inner wall of pressing plate where aluminium bar clamping opening is located;Clamping strip is installed in inner cavity and is symmetrically distributed at aluminium bar clamping opening;

[0010] Inner cavity is fixed with partition plate, and second spring is connected between each clamping strip and partition plate.

[0011] As preferred, the top of fixed block is provided with cylindrical groove, one end of guide column is inserted into cylindrical groove, and the other end is fixedly connected with pressing plate.

[0012] As preferred, a limiting slot in strip shape is opened in the front side of the workbench of the device body, and a battery positioning mechanism is arranged through the limiting slot.

[0013] A set of limiting mechanisms is equipped with a set of battery positioning mechanisms.

[0014] As preferred, the battery positioning mechanism comprises a handle, a baffle and a bolt.

[0015] The back side of the handle is fixed with a limiting block, and the limiting block is slidingly assembled in the limiting slot.

[0016] The baffle is fixedly connected with the top end of the handle and forms an inverted L-shaped structure with the handle; the baffle is distributed above the workbench of the device body to limit the battery body.

[0017] The bolt is arranged on the front side of the workbench of the device body and is distributed on one side of the handle to limit the handle.

[0018] As preferred, the bolt is threadedly connected to a connecting piece, and the connecting piece is connected to one side of the handle.

[0019] As preferred, the auxiliary moving mechanism comprises a sliding groove, a fixed plate, a sliding block, a driving pulley, a driven pulley and a driving motor.

[0020] The sliding groove is opened at the top wall of the device body.

[0021] The fixed plate is fixed below the top wall of the device body, and the sliding block is slidingly assembled on the fixed plate.

[0022] The fixed plate and the sliding block jointly form a side slot, and two sets of side slots are symmetrically distributed, one set of side slots is installed with the driving pulley, and the other set of side slots is installed with the driven pulley.

[0023] The driving motor is installed above the top wall of the device body, the output end of the driving motor downwardly penetrates through the sliding groove and is connected with a connecting rod, and the connecting rod is connected with the driving pulley.

[0024] As preferred, the connecting rod is connected with the driving pulley after penetrating through the bearing at the top wall of the side slot of the sliding block.

[0025] As preferred, a T-shaped block is fixedly connected above the sliding block, and a T-shaped slot adapted to the T-shaped block is opened below the fixed plate.

[0026] As preferred, a positioning head is fixed below the sliding block.

[0027] The utility model discloses an aluminium bar fixing device for automobile battery welding, which is used as a fixing device and can be applied to the welding connection of an aluminium bar main body and a battery main body, specifically adopts a limiting mechanism to clamp and fix the aluminium bar main body, and the position of the battery main body is quickly positioned by the cooperation of the limiting mechanism and a battery positioning mechanism, so that the position of the aluminium bar main body is consistent with the welding position of the battery main body, and the subsequent false welding caused by the movement during welding is prevented, thereby improving the accuracy of welding. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the overall structure schematic diagram of the utility model.

[0029] Figure 2 It is the overall structure schematic diagram of the utility model after assembling with the battery main body and the aluminium bar main body.

[0030] Figure 3 It is Figure 1 The sectional structure schematic diagram.

[0031] Figure 4 It is Figure 1 The structure schematic diagram of the limiting mechanism.

[0032] Figure 5 It is Figure 3 The structure enlarged schematic diagram of A in the utility model.

[0033] Figure 6 It is Figure 3 The structure enlarged schematic diagram of B in the utility model.

[0034] In the drawing: 1, device main body, 2, limiting mechanism, 3, auxiliary moving mechanism, 4, battery main body, 5, aluminium bar main body, 6, battery positioning mechanism, 7, limiting groove, 8, positioning head,

[0035] 20, partition plate, 21, fixed block, 22, cylindrical groove, 23, guide column, 24, first spring, 25, pressing plate, 26, inner cavity, 27, second spring, 28, clamping strip, 29, aluminium bar clamping opening,

[0036] 31, sliding groove, 32, fixed plate, 33, sliding block, 34, side groove, 35a, driving pulley, 35b, driven pulley, 36, connecting rod, 37, driving motor, 38, T-shaped block,

[0037] 61, handle, 62, baffle, 63, connecting sheet, 64, bolt, 65, limiting block. DETAILED DESCRIPTION

[0038] The utility model will be further explained in detail in connection with the drawings and specific implementation.

[0039] The utility model discloses a kind of aluminium bar fixing devices for battery welding, overall structure is set as shown in Figure 1 As shown, including device main body 1, and limiting mechanism 2, auxiliary moving mechanism 3, battery positioning mechanism 6.

[0040] Among them, device main body 1 is as overall structure support, for the installation setting of limiting mechanism 2, auxiliary moving mechanism 3 and battery positioning mechanism 6.

[0041] As shown in Figure 2 Limiting mechanism 2 is mainly used for the clamping fixation of aluminium bar main body 5, and cooperates with battery positioning mechanism 6, and the quick positioning of battery main body 4 can be realized.

[0042] First, as shown in Figure 3 And Figure 4 Limiting mechanism 2 is set as follows: according to the length of device main body 1 and specific customization demand, limiting mechanism 2 can be set apart with multiple groups, and the structure setting principle of multiple limiting mechanism 2 is same.

[0043] Also as Figure 4 Each limiting mechanism 2 includes fixed block 21, guide column 23, pressing plate 25 and clamping strip 28;

[0044] Among them, fixed block 21 is fixed support structure, vertically fixed on the workbench surface of device main body 1;

[0045] Cylindrical groove 22 is set in the top of fixed block 21, and cylindrical groove 22 is used for the installation setting of guide column 23, and one end of guide column 23 is inserted into cylindrical groove 22, and the other end is fixedly connected with pressing plate 25, so that, under the cooperation of guide column 23 and cylindrical groove 22, pressing plate 25 can realize up-down guided movement.

[0046] As preferred, first spring 24 is further connected between pressing plate 25 and fixed block 21, one end of first spring 24 is fixed in spring groove in the top of fixed block 21, and the other end is fixedly connected with pressing plate 25 through spring seat. Thus, after pulling pressing plate 25 upward, first spring 24 is stretched, and battery main body 4 can be placed before the front side of fixed block 21 and below pressing plate 25;When the force of pulling pressing plate 25 upward is cancelled, first spring 24 rebounds and can drive pressing plate 25 to reset and make the bottom end face of pressing plate 25 abut battery main body 4.

[0047] As preferred, guide column 23 is usually symmetrically set two groups, and first spring 24 is set between two groups of guide columns 23, so that the up-down movement of pressing plate 25 is more stable and reliable.

[0048] For pressing plate 25, it is distributed above fixed block 21, and is mainly used for the clamping fixation of aluminium bar main body 5.

[0049] The guide column 23 is connected at one end of the pressing plate 25, and the aluminum bar clamping opening 29 is formed in the pressing plate 25. The aluminum bar body 5 is clamped and placed at the aluminum bar clamping opening 29.

[0050] As shown in the drawings, the aluminum bar clamping opening 29 is formed in the pressing plate 25, and the aluminum bar body 5 is clamped and placed at the aluminum bar clamping opening 29. Figure 4 As shown in the drawings, the aluminum bar clamping opening 29 is formed in the pressing plate 25, and the aluminum bar body 5 is clamped and placed at the aluminum bar clamping opening 29.

[0051] The clamping strip 28 is embedded and installed in the inner cavity 26 at the left and right side walls, and the clamping strip 28 is symmetrically distributed at the aluminum bar clamping opening 29 to adapt to the clamping and placement of the aluminum bar body 5.

[0052] The partition plate 20 is fixed in the inner cavity 26 at the rear side wall, and the second spring 27 is connected between each clamping strip 28 and the partition plate 20. The second spring can be a cylindrical steel wire compression spring.

[0053] Therefore, the inner cavity 26 provides guidance for the movement of the clamping strip 28. When the aluminum bar body 5 is placed on the pressing plate 25, the two clamping strips 28 are squeezed to compress the second spring 27, so that the clamping strip 28 can clamp and fix the two ends of the aluminum bar body 5.

[0054] Through the setting of the limiting mechanism 2, the fixation of the aluminum bar body 5 during welding is realized, and the displacement of the aluminum bar body is avoided, thereby helping to improve the welding quality.

[0055] Since the battery body 4 is placed below the pressing plate 25 during welding, in order to make the aluminum bar clamping opening 29 of the pressing plate 25 correspond to the welding site of the battery body 4 and realize the purpose of rapid welding positioning, the battery positioning mechanism 6 is provided.

[0056] As shown in the drawings, the limiting groove 7 is formed in the front side of the workbench of the device body 1, and the battery positioning mechanism 6 is provided through the limiting groove 7. Usually, one set of limiting mechanism 2 is equipped with one set of battery positioning mechanism 6. Figure 1 Figure 2 As shown in the drawings, the limiting groove 7 is formed in the front side of the workbench of the device body 1, and the battery positioning mechanism 6 is provided through the limiting groove 7. Usually, one set of limiting mechanism 2 is equipped with one set of battery positioning mechanism 6.

[0057] As shown in the drawings, the limiting groove 7 is formed in the front side of the workbench of the device body 1, and the battery positioning mechanism 6 is provided through the limiting groove 7. Usually, one set of limiting mechanism 2 is equipped with one set of battery positioning mechanism 6. Figure 3 Figure 6 As shown in the drawings, the battery positioning mechanism 6 is provided with a handle 61, a baffle 62, and a bolt 64.

[0058] The back side of the handle 61 is fixed with a limiting block 65, and the limiting block 65 is slidingly assembled in the limiting groove 7.

[0059] ​​The baffle 62 is fixedly connected with the top end of the handle 61 and forms an inverted L-shaped structure with the handle 61; the baffle 62 is distributed above the workbench of the device body 1 to limit the battery body 4;

[0060] The bolt 64 is arranged at the front side of the workbench of the device body 1 and is distributed on one side of the handle 61 to limit the handle 61. The bolt 64 is specifically connected with the connecting sheet 63 through threads, and the connecting sheet 63 is connected with one side of the handle 61.

[0061] Therefore, by pulling the handle 61 to slide the limiting block 65 in the limiting groove 7, the position of the baffle 62 can be adjusted; by rotating the bolt 64 to make the bolt abut against the front wall of the workbench of the device body 1, the baffle 62 can be fixed at the current position.

[0062] Generally, the models of the battery body 4 are different; when the battery body 4 of the current model is placed on the workbench of the device body 1 for the first time, the baffle 62 is adjusted by sliding to abut against the side surface of the battery body 4, and then the bolt 64 is rotated to fix the baffle 62 at the current position; when the battery body 4 of the current model is connected with the aluminum bar body 5 for welding connection processing, the battery body 4 can be quickly placed. The slidable baffle 62 can meet the use requirement of quick positioning and placement of the battery body 4 of different models.

[0063] After the above positioning and fixing of the battery body 4 and the aluminum bar body 5 are completed, the welding connection of the battery body 4 and the aluminum bar body 5 is performed. The laser welding head is arranged on the positioning head 8, the positioning head 8 is connected below the auxiliary moving mechanism 3, and under the linear reciprocating motion of the auxiliary moving mechanism 3, a plurality of groups of the battery body 4 and the aluminum bar body 5 that are fixed and positioned can be welded to improve the welding efficiency.

[0064] As shown in Figure 3 and Figure 5 The auxiliary moving mechanism 3 specifically comprises a sliding groove 31, a fixed plate 32, a sliding block 33, a driving pulley 35a, a driven pulley 35b, and a driving motor 37.

[0065] The sliding groove 31 is arranged on the top wall of the device body 1; the fixed plate 32 is fixedly arranged below the top wall of the device body 1, and the sliding block 33 is slidingly assembled on the fixed plate 32; a T-shaped block 38 is fixedly connected above the sliding block 33, and a T-shaped groove adapted to the T-shaped block 38 is arranged below the fixed plate 32, so that the sliding block 33 can slide relative to the fixed plate 32 in a guided manner.

[0066] As shown in Figure 5As shown, the fixed plate 32 and the sliding block 33 are jointly formed with a side groove 34, the side groove 34 is symmetrically distributed with two groups, one group of side grooves 34 is provided with a driving wheel 35a, and the other group of side grooves 34 is provided with a driven wheel 35b; the driving motor 37 is installed above the top wall of the device body 1, the output end of the driving motor 37 passes through the sliding groove 31 downward and is connected with a connecting rod 36, and the connecting rod 36 is connected with the driving wheel 35a.

[0067] Therefore, the driving motor 37 is started to drive the connecting rod 36 to rotate, and then drive the driving wheel 35a to rotate, and the rotation of the wheel in the side groove drives the sliding block to move, and then the positioning head 8 can be continuously moved to realize the laser welding of the plurality of battery bodies and the aluminum bar bodies.

[0068] As preferred, the driving wheel 35a and the corresponding side wall surface of the side groove are both frosted surfaces, and the two are attached to each other, and the sliding drive of the sliding block 33 is realized by using the friction force.

[0069] Alternatively, the driving wheel 35a can adopt a gear form, and the corresponding side groove side wall is provided with a rack meshing with the gear to realize the sliding drive of the sliding block 33.

[0070] For the driven wheel 35b, a pulley form can be adopted to assist the stable sliding of the sliding block 33.

[0071] As preferred, the connecting rod 36 passes through the bearing at the top wall of the side groove of the sliding block 33 and is connected with the driving wheel 35a. The bearing structure is used to stably drive the driving wheel 35a to rotate by the connecting rod 36.

[0072] Therefore, the movement distance of the sliding block 33 on the fixed plate 32 can be controlled by presetting the rotation times of the driving motor 37, so that the positioning head is continuously moved and positioned to the required laser welding position. The aluminum bar bodies on the battery bodies are laser welded, and the plurality of battery bodies and aluminum bar bodies are positioned and placed on the device body, and the welding is carried out by the continuous movement of the positioning head, so that the welding efficiency is improved.

[0073] As can be seen from the above, for the aluminum bar fixing device for battery welding, when the battery body 4 and the aluminum bar body 5 are welded and connected, the positions of the battery body 4 and the aluminum bar body 5 need to be positioned, so as to facilitate laser welding.

[0074] Firstly, the battery body 4 is placed on the workbench of the device body 1, the guide column 23 is driven to slide in the cylindrical groove 22 by pulling the pressing plate 25, the first spring 24 is stretched, the bottom end of the pressing plate 25 is brought into abutment with the battery body 4 by the rebound of the first spring 24, the aluminum bar clamp opening 29 of the pressing plate 25 is placed in correspondence with the welding point of the battery body 4, the aluminum bar body 5 is placed on the pressing plate 25, the second spring 27 is compressed by extruding the two clamping strips 28, the two ends of the aluminum bar body 5 are clamped and fixed by the clamping strips 28, and the aluminum bar body 5 is placed in correspondence with the welding point of the battery body 4;

[0075] Secondly, the placement position of the battery body 4 can be accurately limited under the cooperation of the baffle, the limiting block, the limiting groove and the like, so that the welding point of the aluminum bar body 5 can be quickly corresponded to the welding point of the battery body 4, thereby facilitating welding connection.

[0076] After the positioning and fixed placement of the battery body 4 and the aluminum bar body 5 are completed, the driving motor 37 is started to drive the connecting rod 36 to rotate, and then drive the driving pulley 35a to rotate, the sliding block 33 is driven to slide by the driving pulley 35a rotating in the side groove 34, the sliding block 33 moves under the limiting of the T-shaped block 38, and drives the positioning head 8 to move to the welding point for laser welding. Multiple groups of battery bodies 4 are placed on the device body 1, and the above operation is repeated for limiting, and the multiple groups of battery bodies 4 and aluminum bar bodies 5 are welded by the continuous movement of the positioning head 8, thereby improving the efficiency of the aluminum bar connection.

[0077] Compared with the prior art, the present new type has the following technical advantages:

[0078] 1) The aluminum bar body and the battery body can be quickly positioned and the welding position can be kept consistent, the efficiency of the welding operation is improved, the aluminum bar body is not easy to displace, the subsequent false welding and the like are prevented, and the welding accuracy is improved;

[0079] 2) After multiple groups of battery bodies and aluminum bar bodies are positioned and placed, the positioning head can continuously move, and the laser welding process can be continuously performed, thereby improving the efficiency of the welding work.

[0080] The above embodiments are not a limitation on the present application, and the present application is not limited to the above examples, and the changes, modifications, additions or replacements made by the person skilled in the art within the technical scheme of the present application also belong to the protection scope of the present application.

Claims

1. A device for fixing an aluminum bar for welding of an automobile battery, comprising a device body (1), characterized in that: The workbench of the device body (1) is provided with a limiting mechanism (2), and the top wall of the device body (1) is provided with an auxiliary moving mechanism (3); The auxiliary moving mechanism (3) is connected with a positioning head (8) below; The limiting mechanism (2) is arranged in multiple groups in intervals, and each group of the limiting mechanism (2) comprises a fixed block (21), a guide column (23), a pressing plate (25) and a clamping strip (28); The fixed block (21) is vertically fixed on the workbench of the device body (1), the pressing plate (25) is distributed above the fixed block (21) and is assembled and connected with the fixed block (21) at the end position through the guide column (23); the first spring (24) is further connected between the pressing plate (25) and the fixed block (21); An aluminum bar clamping opening (29) is formed in the pressing plate (25), and an inner cavity (26) is formed in the side wall of the pressing plate (25) where the aluminum bar clamping opening (29) is located; the clamping strip (28) is installed in the inner cavity (26) and is symmetrically distributed at the aluminum bar clamping opening (29); The inner cavity (26) is fixed with a partition plate (20), and the second spring (27) is connected between each clamping strip (28) and the partition plate (20).

2. The aluminum bar fixture for automobile battery welding according to claim 1, characterized in that: A cylindrical groove (22) is formed in the top of the fixed block (21), and one end of the guide column (23) is inserted into the cylindrical groove (22), and the other end is fixedly connected with the pressing plate (25).

3. The aluminum bar fixture for automobile battery welding of claim 1, wherein: A limiting groove (7) in a strip shape is formed in the front side of the workbench of the device body (1), and a battery positioning mechanism (6) is arranged through the limiting groove (7); One group of the limiting mechanism (2) is equipped with one group of the battery positioning mechanism (6).

4. The aluminum bar fixture for automobile battery welding according to claim 3, characterized in that: The battery positioning mechanism (6) comprises a handle (61), a baffle (62) and a bolt (64); The back side of the handle (61) is fixed with a limiting block (65), and the limiting block (65) is slidingly assembled in the limiting groove (7); The top end of the baffle (62) is fixedly connected with the handle (61) and forms an inverted L-shaped structure with the handle (61); the baffle (62) is distributed above the workbench of the device body (1) to limit the battery body (4); The bolt (64) is arranged on the front side of the workbench of the device body (1) and is distributed on one side of the handle (61) to limit the handle (61).

5. The aluminum bar fixture for automotive battery welding of claim 4, wherein: The bolt (64) is threadedly connected to a connecting piece (63), and the connecting piece (63) is connected to one side of the handle (61).

6. The aluminum bar fixture for automobile battery welding according to claim 2 or 5, characterized in that: The auxiliary moving mechanism (3) comprises a sliding groove (31), a fixed plate (32), a sliding block (33), a driving pulley (35a), a driven pulley (35b) and a driving motor (37); The sliding groove (31) is formed in the top wall of the device body (1); The fixed plate (32) is fixed below the top wall of the device body (1), and the sliding block (33) is slidingly assembled on the fixed plate (32); The fixed plate (32) and the sliding block (33) jointly form side grooves (34), and two groups of side grooves (34) are symmetrically distributed, one group of side grooves (34) is provided with a driving runner (35a), and the other group of side grooves (34) is provided with a driven runner (35b); The driving motor (37) is installed above the top wall of the device body (1), the output end of the driving motor (37) penetrates through the sliding groove (31) downward and is connected with a connecting rod (36), and the connecting rod (36) is connected with the driving runner (35a).

7. The aluminum bar fixture for automotive battery welding of claim 6, wherein: The connecting rod (36) penetrates through the bearing at the top wall of the side groove of the sliding block (33) and is connected with the driving runner (35a).

8. The aluminum bar fixture for automobile battery welding of claim 6, wherein: The upper side of the sliding block (33) is fixedly connected with a T-shaped block (38), and the lower side of the fixed plate (32) is provided with a T-shaped groove matched with the T-shaped block (38).

9. The aluminum bar fixture for automotive battery welding of claim 7, wherein: The positioning head (8) is fixed below the sliding block (33).

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