Handheld welding pressing block

Abstract

The utility model relates to the field of chip welding, in particular to a handheld welding pressing block which comprises a handheld balancing weight and a pressing block module used for abutting against a chip in a matched mode, and the handheld balancing weight is detachably connected with the pressing block module. The handheld balancing weight is provided with a through laser channel, the pressing block module is provided with a through welding channel, and the laser channel is communicated with the welding channel; the handheld balancing weight is provided with a holding groove, and the holding groove is located in the side wall, away from the laser channel, of the handheld balancing weight. The handheld balancing weight and the pressing block module are detachably connected, so that generalization of the handheld welding pressing block is achieved, the pressing block module can be replaced to adapt to welding operation of different chips, and the manufacturing cost of the tool is reduced; according to the handheld welding pressing block, the handheld groove is formed in the handheld balancing weight, control by an operator is facilitated, the use stability of the handheld welding pressing block is improved, the chip pressing effect is guaranteed, and the product yield is increased.

Description

Technical Field

[0001] The utility model relates to the field of bar welding, in particular to a handheld welding pressing block. Background Art

[0002] Currently, the tabs of lithium battery modules are welded using laser welding technology. Before the laser welding device starts welding, pressure needs to be applied to the tabs to make them in close contact with the battery cells. Since the mechanical device applies pressure to the tabs at a fixed angle, welding leaks may occur, and manual welding is often required using welding blocks.

[0003] However, the welding blocks currently used are made for a single battery cell model, are not universal, and have high production costs. In addition, they are inconvenient to use, resulting in unsatisfactory pressing effects and a high product defect rate.

[0004] Therefore, there is an urgent need for a technical solution to solve the technical problems that the currently used welding pressing blocks are not universal and inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a handheld welding pressing block to solve the technical problems that the currently used welding pressing blocks are not universal and inconvenient to use.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A handheld welding press block, comprising a handheld counterweight block and a press block module adapted to abut against a bar, wherein the handheld counterweight block and the press block module are detachably connected;

[0008] The handheld counterweight block is provided with a through laser channel, the pressing block module is provided with a through welding channel, and the laser channel is connected with the welding channel;

[0009] The handheld counterweight block is provided with a holding groove, and the holding groove is located on a side wall of the handheld counterweight block away from the laser channel.

[0010] The utility model discloses a hand-held welding pressure block, in which a hand-held counterweight block and a pressure block module are detachably connected. When welding different types of battery cell tabs, the hand-held welding pressure block can be adapted to different types of battery cell tabs by replacing different hand-held counterweight blocks or pressure block modules. The laser can perform welding operations on the tabs through a laser channel and a welding channel. A holding groove is provided on the hand-held counterweight block, and an operator can control the hand-held counterweight block by buckling the holding groove, so that the pressure block module can abut against the tabs to make the tabs and the battery cell in close contact. When in use, the tabs are continuously pressed by the pressure block module to make the tabs and the battery cell in close contact, and the laser is allowed to pass through the laser channel and the welding channel, so that the laser can be irradiated on the tabs to make the tabs and the battery cell welded. The pressure block module and the hand-held counterweight block are designed as separate parts, and different pressure block modules can be quickly adapted to the welding of different tabs by replacing them, thereby reducing the manufacturing cost. The holding groove is convenient for the operator to hold the hand-held counterweight block, so that the operator can better control the degree of compression of the tabs, thereby improving the welding yield.

[0011] As a preferred solution of the utility model, the pressure block module includes an interchangeable block and a copper nozzle for abutting against a bar, the copper nozzle is connected to the interchangeable block, and the interchangeable block is connected to the handheld counterweight block. There are many types of copper nozzles, different copper nozzles can adapt to different types of bar, and different copper nozzles are set on different pressure block modules; when in use, the type of copper nozzle can be changed by replacing the interchangeable block.

[0012] As a preferred solution of the utility model, the welding channel includes a first channel and a second channel, the first channel is arranged on the interchangeable block, the second channel is arranged on the copper nozzle, and the first channel is aligned and connected with the second channel. The laser is emitted from the second channel on the copper nozzle to weld the bar piece, and the copper nozzle is constructed as a tubular structure with a rectangular or circular cross-section surface, and the internal channel of the tubular structure is used as the second channel, and the end of the tubular structure abuts the bar piece; the cross-sectional area of ​​the first channel is equal to the cross-sectional area of ​​the second channel, so that the first channel is aligned and connected with the second channel, which is convenient for the laser to pass through.

[0013] As a preferred solution of the utility model, the interchangeable block and the copper nozzle are detachably connected, or the interchangeable block and the copper nozzle are an integrally formed structural part. The interchangeable block and the copper nozzle are detachably connected, and the handheld welding pressure block can be adapted to the bar to be welded by replacing the copper nozzle, and the copper nozzle is connected to the interchangeable block in a threaded connection; the interchangeable block and the copper nozzle are an integrally formed structural part, and the handheld welding pressure block can be adapted to the bar to be welded by replacing the interchangeable block.

[0014] As a preferred solution of the utility model, the center line of the laser channel and the welding channel are colinear, ensuring that the laser can smoothly pass through the laser channel and the welding channel to weld the bar piece; making it easier for the laser to pass through the welding channel, ensuring the positioning accuracy of the laser on the bar piece, and avoiding welding position deviation.

[0015] As a preferred solution of the utility model, the laser channel includes a rectangular channel with a rectangular cross section, and the rectangular channel is opened in the middle of the handheld counterweight. The cross-sectional area of ​​the laser channel is larger than the cross-sectional area of ​​the welding channel, so that the operator can more easily adjust the irradiation position of the laser, which is convenient for the operator to perform the bar welding operation.

[0016] As a preferred solution of the utility model, the pressing block module is bolted and / or snap-connected to the handheld counterweight. A connection hole is provided on the interchangeable block of the pressing block module, and a bolt is provided in the connection hole to bolt the interchangeable block to the handheld counterweight; a clamping groove is provided on the handheld counterweight, and a clamping piece is provided on the pressing block module, and the clamping piece is adapted to be connected to the clamping groove, so that the pressing block module can be fixed on the handheld counterweight.

[0017] As a preferred solution of the utility model, the handheld counterweight block is provided with a positioning groove, the pressing block module can be adapted to be embedded in the positioning groove, and the laser channel runs through the bottom of the positioning groove. By providing the positioning groove, the pressing block module can be quickly positioned and replaced, and the laser channel runs through the bottom of the positioning groove, so that the laser channel can be connected with the welding channel provided by the pressing block module.

[0018] As a preferred solution of the utility model, the positioning groove includes a rectangular groove, and the pressure block module is partially embedded in the rectangular groove. The rectangular groove is adapted to the shape of the interchangeable block, and by partially embedding the pressure block module in the rectangular groove, the interchangeable block can be better limited, so that the pressure block module is easy to remove and replace; the copper mouth protrudes the handheld counterweight block, so that the copper mouth can abut against the bar.

[0019] As a preferred solution of the utility model, the hand-held counterweight block includes a rectangular block structure, and the two holding grooves are respectively arranged on opposite sides of the rectangular block structure. Holding grooves are respectively arranged on opposite sides of the rectangular block structure, and the operator holds the hand-held counterweight block with both hands, which can keep the hand-held counterweight block balanced when applying force, so that the pressing block module is in stable contact with the bar.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] 1. The utility model provides a handheld welding pressure block, in which a handheld counterweight block and a pressure block module are detachably connected. When welding different types of battery cell tabs, the handheld welding pressure block can be adapted to different types of battery cell tabs by replacing different handheld counterweight blocks or pressure block modules; the laser can perform welding operations on the tabs through the laser channel and the welding channel; a holding groove is provided on the handheld counterweight block, and the operator can control the handheld counterweight block by buckling the holding groove, so that the pressure block module can abut the tabs to make the tabs and the battery cells in close contact; when in use, the tabs are continuously pressed by the pressure block module to make the tabs in close contact with the battery cells, and the laser is allowed to pass through the laser channel and the welding channel, and the laser can be irradiated on the tabs to make the tabs and the battery cells welded, the pressure block module and the handheld counterweight block are designed separately, and different pressure block modules can be quickly adapted to the welding of different tabs by replacing them, thereby reducing the production cost; the holding groove is convenient for the operator to hold the handheld counterweight block, so that the operator can better control the degree of compression of the tabs, thereby improving the welding yield.

[0022] 2. The utility model provides a handheld welding pressure block with a simple structure, easy production and convenient use. The handheld counterweight block and the pressure block module are detachably connected to realize the universalization of the handheld welding pressure block. The pressure block module can be replaced to adapt to welding operations of different bars, thereby reducing the manufacturing cost of tooling. A holding groove is provided on the handheld counterweight block to facilitate control by operators, thereby improving the stability of the handheld welding pressure block, ensuring the clamping effect on the bar, and improving the product yield. It has good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a handheld welding pressing block of Example 1;

[0024] Figure 2 This is a schematic structural diagram of a handheld welding pressing block of Example 1;

[0025] Figure 3 is a schematic structural diagram of a briquetting module of Example 1;

[0026] Figure 4 is a schematic cross-sectional structural diagram of the briquetting module of Example 1;

[0027] Figure 5 is a schematic structural diagram of a handheld counterweight block of Example 1;

[0028] Figure 6 It is a structural schematic diagram of a pressing block module of a handheld welding pressing block;

[0029] Figure 7 It is a structural schematic diagram of a pressing block module of a handheld welding pressing block;

[0030] Figure 8The present invention is a structural schematic diagram of a pressing block module of a handheld welding pressing block.

[0031] icon:

[0032] 1-handheld counterweight, 2-pressing block module, 3-laser channel, 4-welding channel, 5-holding groove, 6-positioning groove, 21-interchangeable block, 22-copper nozzle, 41-first channel, 42-second channel. DETAILED DESCRIPTION

[0033] The utility model is described in detail below in conjunction with the accompanying drawings.

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] Example 1

[0036] like Figure 1-Figure 5 A handheld welding press block shown in the figure comprises a handheld counterweight block 1 and a press block module 2 adapted to abut against a bar, wherein the handheld counterweight block 1 and the press block module 2 are detachably connected;

[0037] The handheld counterweight block 1 is provided with a through laser channel 3, the pressing block module 2 is provided with a through welding channel 4, and the laser channel 3 is connected with the welding channel 4;

[0038] The handheld counterweight 1 is provided with a gripping groove 5, and the gripping groove 5 is located on the side wall of the handheld counterweight 1 away from the laser channel 3.

[0039] The handheld counterweight 1 and the pressure block module 2 are detachably connected, and when welding different types of battery cell tabs, the handheld welding pressure block can be adapted to different types of battery cell tabs by replacing different handheld counterweights 1 or pressure block modules 2; the laser can perform welding operations on the tabs through the laser channel 3 and the welding channel 4; the handheld counterweight 1 is provided with a holding groove 5, and the operator can control the handheld counterweight 1 by buckling the holding groove 5, so that the pressure block module 2 can abut against the tab to make the tab and the battery cell in close contact.

[0040] Specifically, the handheld counterweight 1 is a rectangular block structure, and two holding grooves 5 are respectively arranged on opposite sides of the rectangular block structure; the operator can hold the handheld counterweight 1 with both hands to keep the handheld counterweight 1 balanced, so that the operator can better press down on the handle.

[0041] Specifically, the pressing block module 2 is composed of an interchangeable block 21 and a copper nozzle 22. The interchangeable block 21 is a rectangular block, and the copper nozzle 22 is a tubular structure whose end can abut against the bar. The copper nozzle 22 is arranged in the middle of the interchangeable block 21; the copper nozzle 22 is arranged on one side of the rectangular block, and the other side is connected to the handheld counterweight block 1; the cross-sectional area of ​​the tubular structure is rectangular or circular, and different copper nozzles 22 differ in the shape or size of the cross-section. When in use, the copper nozzles 22 arranged on different interchangeable blocks 21 are different. By replacing the interchangeable block 21, the handheld welding pressing block can be suitable for different types of bar welding operations.

[0042] Specific, optional Figure 6-Figure 8 The interchange block 21 is shown.

[0043] Specifically, the laser channel 3 is a rectangular channel with a rectangular cross-section, and the rectangular channel is opened in the middle of the handheld counterweight 1; the laser channel 3 is collinear with the center line of the welding channel 4; the cross-sectional area of ​​the rectangular channel is larger than the cross-sectional area of ​​the welding channel 4, which is convenient for the operator to observe whether the laser passes through the welding channel 4; the laser channel 3 is collinear with the center line of the welding channel 4, so that the laser can more easily pass through the welding channel 4 and irradiate the bar.

[0044] Specifically, the welding channel 4 is composed of a first channel 41 and a second channel 42. The first channel 41 is arranged on the interchangeable block 21, and the second channel 42 is arranged on the copper nozzle 22. The first channel 41 is aligned and connected with the second channel 42. The cross-sectional shapes of the first channel 41 and the second channel 42 are the same, so that the laser can be more easily irradiated on the bar.

[0045] Specifically, the interchangeable block 21 and the copper nozzle 22 are integrally formed structural parts; by replacing the pressing block module 2, the handheld welding pressing block can be adapted to the welding of different pieces.

[0046] Specifically, the handheld counterweight 1 is provided with a positioning groove 6, so that the interchangeable block 21 can be adapted and embedded in the positioning groove 6, and the laser channel 3 passes through the bottom of the positioning groove 6. The positioning groove 6 includes a rectangular groove, and the interchangeable block 21 is partially embedded in the rectangular groove. By providing the positioning groove 6, the positioning groove 6 is constructed as a rectangular groove adapted to the interchangeable block 21. When the interchangeable block 21 is embedded in the rectangular groove, the rectangular groove can limit the interchangeable block 21, thereby realizing the rapid replacement of the pressing block module 2 on the handheld counterweight 1; the interchangeable block 21 is partially embedded in the rectangular groove, so that the copper nozzle 22 protrudes and can abut against the bar.

[0047] Specifically, the handheld counterweight block 1 is connected by bolts; two connecting holes are set on the interchangeable block 21, and the two connecting holes are symmetrically arranged on both sides of the copper mouth 22. By setting bolts in the connecting holes, the bolt connection is interchangeable with the handheld counterweight block 1, so that the pressing block module 2 is firmly fixed on the handheld counterweight block 1.

[0048] A handheld welding pressure block of the present embodiment, when in use, continuously applies pressure to the bar piece through the pressure block module 2, so that the bar piece is in close contact with the battery cell, and the laser is allowed to pass through the laser channel 3 and the welding channel 4. The laser can be irradiated on the bar piece to weld the bar piece and the battery cell. The pressure block module 2 and the handheld counterweight block 1 are designed to be separated. By replacing different pressure block modules 2, the welding of different bar pieces can be quickly adapted, thereby reducing the production cost; the holding groove 5 is convenient for the operator to hold the handheld counterweight block 1, so that the operator can better control the degree of compression of the bar piece, thereby improving the welding yield.

[0049] Example 2

[0050] The handheld welding pressing block of this embodiment has a structure substantially the same as that of the embodiment 1, but is different from the embodiment 1 in that the interchangeable block 21 and the copper nozzle 22 are detachably connected.

[0051] Specifically, the interchangeable block 21 and the copper nozzle 22 are threadedly connected, so that the copper nozzle 22 can be easily replaced and maintained.

[0052] Example 3

[0053] The handheld welding pressing block of this embodiment has a structure substantially the same as that of the embodiment 1, except that the interchangeable block 21 is snap-connected to the handheld counterweight block 1.

[0054] Specifically, a snap groove is set on the handheld counterweight block 1, and a snap piece is set on the interchangeable block 21. The cooperation between the through-hole snap groove and the snap piece enables the interchangeable block 21 to be fixed on the handheld counterweight block 1, making it easy to disassemble and install the interchangeable block 21 and the handheld counterweight block 1.

[0055] Example 4

[0056] The handheld welding pressing block of this embodiment has a structure substantially the same as that of the first embodiment. The difference from the first embodiment is that the four sides of the rectangular block structure are provided with gripping grooves 5 to facilitate the operator to grip.

[0057] Example 5

[0058] The handheld welding pressing block of this embodiment has a structure substantially the same as that of the embodiment 1. The difference from the embodiment 1 is that the height of the interchangeable block 21 is equal to the depth of the positioning groove 6, and the interchangeable block 21 is completely embedded in the positioning groove 6.

[0059] Specifically, the copper mouth 22 protrudes from the handheld counterweight 1, so that the copper mouth 22 can abut against the jaws.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld welding press block, characterized in that: It comprises a handheld counterweight (1) and a pressing block module (2) adapted to abut against a bar, wherein the handheld counterweight (1) and the pressing block module (2) are detachably connected; The handheld counterweight (1) is provided with a through laser channel (3), the pressing block module (2) is provided with a through welding channel (4), and the laser channel (3) is in communication with the welding channel (4); The handheld counterweight (1) is provided with a gripping groove (5), and the gripping groove (5) is located on a side wall of the handheld counterweight (1) away from the laser channel (3).

2. A handheld welding press block as claimed in claim 1, characterized in that: The pressing block module (2) comprises an interchangeable block (21) and a copper nozzle (22) for abutting against a bar, the copper nozzle (22) being connected to the interchangeable block (21), and the interchangeable block (21) being connected to the handheld counterweight block (1).

3. A handheld welding press block as claimed in claim 2, characterized in that: The welding channel (4) comprises a first channel (41) and a second channel (42); the first channel (41) is arranged on the interchangeable block (21), the second channel (42) is arranged on the copper nozzle (22), and the first channel (41) is aligned and connected with the second channel (42).

4. A handheld welding press block as claimed in claim 2, characterized in that: The interchangeable block (21) and the copper nozzle (22) are detachably connected, or the interchangeable block (21) and the copper nozzle (22) are integrally formed structural parts.

5. A handheld welding press block as claimed in claim 1, characterized in that: The center lines of the laser channel (3) and the welding channel (4) are collinear.

6. A handheld welding press block as claimed in claim 1, characterized in that: The laser channel (3) comprises a rectangular channel with a rectangular cross-section, and the rectangular channel is opened in the middle of the handheld counterweight (1).

7. A handheld welding press block as claimed in claim 1, characterized in that: The pressing block module (2) is bolted and / or snap-connected to the handheld counterweight (1).

8. A handheld welding press block as claimed in claim 1, characterized in that: The handheld counterweight (1) is provided with a positioning groove (6), the pressing block module (2) can be adapted to be embedded in the positioning groove (6), and the laser channel (3) runs through the bottom of the positioning groove (6).

9. A handheld welding press block as claimed in claim 8, characterized in that: The positioning groove (6) comprises a rectangular groove, and the pressing block module (2) is partially embedded in the rectangular groove.

10. A handheld welding press block according to any one of claims 1 to 9, characterized in that: The handheld counterweight (1) comprises a rectangular block structure, and the two gripping grooves (5) are respectively arranged on two opposite sides of the rectangular block structure.

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