Resistance welding device and battery welding apparatus

Abstract

The present disclosure provides a resistance welding device and a battery welding equipment. The resistance welding device comprises a base plate, a support seat, a welding needle assembly and a bottom die assembly. The support seat is arranged on the base plate. The sliding seat of the welding needle assembly is arranged on the support seat and connected with the driving end of the driver. The bottom die assembly comprises a fixed seat and a welding column. The first adjusting groove is formed on the base plate corresponding to the position of the welding needle assembly. The first locking member passes through the mounting hole of the fixed seat and the first adjusting groove in sequence to lock and fix the fixed seat on the base plate. The welding column is arranged on the fixed seat. The second adjusting groove is formed on the base plate corresponding to the position of the support seat. The second locking member passes through the through hole of the support seat and the second adjusting groove in sequence to lock and fix the support seat on the base plate. The device does not need to increase the adjusting seat with complex structure, realizes the independent adjustment of the welding needle and the welding column, improves the flexibility of adjustment, and is especially suitable for the application with limited welding needle adjustment space.

Description

Technical Field

[0001] This disclosure relates to the field of battery welding technology, and in particular to a resistance welding apparatus and battery welding equipment. Background Technology

[0002] Resistance welding is one of the common techniques for battery welding. It mainly uses the resistance heat generated by the current passing through the workpiece and the contact area as a heat source to locally heat the workpiece while applying pressure, thereby achieving the welding and fixing of the electrode tab to the steel shell.

[0003] However, in practical applications, welding needles in welding equipment can usually only be adjusted vertically, not horizontally. In light of this, some researchers have developed a novel resistance welding device. For example, Chinese patent document CN216028708U discloses a resistance welding electrode adjustment device that achieves vertical and horizontal adjustment of the welding needle by adding an adjustment seat between the cylinder and the welding needle.

[0004] However, because the aforementioned adjusting seat needs to accommodate both the cylinder and the welding pin, its structure is quite complex, which is detrimental to manufacturing. Furthermore, from the aforementioned literature... Figure 3 As can be seen, the lower electrode is fixedly installed on the lower electrode holder, and the welding column cannot be adjusted. This means that the operator can only operate by adjusting the welding needle, making it difficult to make flexible adjustments. This is especially evident in resistance welding devices where the adjustment space of the welding needle is limited. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a method that allows for the individual adjustment of the welding needle and the welding column without the need for an additional, more complex adjustment seat, thereby effectively improving the flexibility of adjustment. This method is particularly suitable for resistance welding devices and battery welding equipment where the adjustment space for the welding needle is limited.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A resistance welding apparatus includes a base plate, a support base, a welding needle assembly, and a bottom mold assembly. The support base is disposed on the base plate. The welding needle assembly includes a sliding seat, a driver, and a welding needle. The sliding seat is slidably disposed on the support base and connected to the driving end of the driver. The welding needle is disposed on the side of the sliding seat facing the base plate. The bottom mold assembly includes a fixed seat and a welding column.

[0008] The resistance welding device further includes a locking assembly, which includes a first locking member and a second locking member; the base plate has a first adjustment groove formed corresponding to the position of the welding pin assembly, and the first locking member passes through the mounting hole of the fixed seat and the first adjustment groove in sequence to lock the fixed seat onto the base plate; the welding column is disposed on the fixed seat;

[0009] The base plate has a second adjustment groove corresponding to the position of the support seat. The second locking member passes through the through hole of the support seat and the second adjustment groove in sequence to lock and fix the support seat to the base plate.

[0010] In one embodiment, the extension directions of the first adjustment groove and the second adjustment groove are aligned with each other.

[0011] In one embodiment, the base plate further forms a third adjustment groove, which is connected to the first adjustment groove, and the extension direction of the third adjustment groove is perpendicular to the extension direction of the first adjustment groove.

[0012] In one embodiment, there are multiple first adjustment slots and multiple third adjustment slots, and each first adjustment slot and each third adjustment slot is arranged alternately to form a first grid channel.

[0013] In one embodiment, the base plate further forms a fourth adjustment groove, which is connected to the second adjustment groove, and the extension direction of the fourth adjustment groove is perpendicular to the extension direction of the second adjustment groove.

[0014] In one embodiment, there are multiple second adjustment slots and multiple fourth adjustment slots, and each second adjustment slot and each fourth adjustment slot is arranged alternately to form a second grid channel.

[0015] In one embodiment, the first locking element is a first bolt and a first nut; the fixing seat has the mounting hole, and the first nut is located on the side of the base plate opposite to the fixing seat; the first bolt passes through the mounting hole and the first adjusting groove in sequence, and is screwed into the first nut; and / or,

[0016] The second locking element is a second bolt and a second nut; the support base has the through hole, and the second nut is located on the side of the base plate opposite to the support base; the second bolt passes through the through hole and the second adjusting groove in sequence, and is screwed into the second nut; and / or,

[0017] The through hole is a waist-shaped hole.

[0018] In one embodiment, the fixing base includes a base, an adjusting base, and an insulating fixing block. The base has the through hole, the adjusting base is connected to one side of the base, and the insulating fixing block is disposed on one side of the adjusting base.

[0019] In one embodiment, the base includes a first clamping block, a second clamping block, a third locking member, and a metal conductive rod. The first clamping block has a mounting groove, and a first arc-shaped positioning groove is formed within the mounting groove. The second clamping block has a corresponding second arc-shaped positioning groove. The second clamping block is threadedly connected to the first clamping block via the third locking member, such that the first arc-shaped positioning groove and the second arc-shaped positioning groove together form a clamping cavity. The clamping cavity is used to clamp and fix the metal conductive rod, and the metal conductive rod is insulated from and separated from the clamping cavity; and / or

[0020] The adjusting seat has a fifth adjusting groove, and the base also includes a fourth locking member. The fourth locking member passes through the positioning hole of the insulating fixing clamp and the fifth adjusting groove in sequence to fix the insulating fixing clamp onto the adjusting seat.

[0021] A battery welding apparatus, comprising the resistance welding device described in any of the above embodiments.

[0022] Compared with the prior art, this disclosure has at least the following advantages:

[0023] 1) Since the base plate has a first adjustment groove corresponding to the position of the welding needle assembly, the first locking member passes through the mounting hole of the fixed seat and the first adjustment groove in sequence to lock the fixed seat onto the base plate; so as to realize the adjustable and detachable setting of the fixed seat and the base plate. When it is necessary to adjust the position of the welding column, the operator can manually remove the first locking member, then move the fixed seat to the position of the first adjustment groove so that the welding column on the fixed seat is aligned with the welding needle, and finally lock the first locking member, thereby realizing the individual adjustment of the horizontal direction of the welding column, which is especially suitable for resistance welding devices with limited welding needle adjustment space.

[0024] 2) Since the base plate has a second adjustment groove corresponding to the position of the support seat, the second locking member passes through the through hole of the support seat and the second adjustment groove in sequence to lock and fix the support seat to the base plate. This realizes the adjustable and detachable setting of the support seat and the base plate. When it is necessary to adjust the position of the welding needle, the operator can manually disassemble the second locking member, then move the support seat to the position of the second adjustment groove so that the welding needle on the support seat is aligned with the welding column, and finally lock the second locking member. This realizes the individual adjustment of the horizontal direction of the welding needle, so that the operator can choose to adjust the welding column or the welding needle individually or simultaneously according to the actual application situation. This improves the flexibility of the resistance welding device adjustment. In particular, with the use of the sliding seat, the driver can drive the welding needle to move in the vertical direction of the support seat to better adapt to the application of various specifications and different application scenarios, and there is no need to add a more complex adjustment seat, which is convenient for the operator to produce and process. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the resistance welding device according to an embodiment of the present invention from one direction.

[0027] Figure 2 for Figure 1 The enlarged view shown at point A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the base plate in one direction according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the base plate in one direction according to another embodiment of the present invention.

[0030] Reference numerals: 10, resistance welding device; 100, base plate; 110, first adjusting groove; 120, second adjusting groove; 130, third adjusting groove; 140, fourth adjusting groove; 200, support base; 210, through hole; 300, welding needle assembly; 310, sliding seat; 320, driver; 330, welding needle; 400, bottom mold assembly; 410, fixed seat; 411, base; 4111, first clamping block; 4111a, mounting hole; 4112, second clamping block; 4113, third locking element; 4114, clamping cavity; 4115, metal conductive rod; 4116, fourth locking element; 412, adjusting seat; 413, insulating fixing clamp; 420, welding column; 510, first locking element; 520, second locking element. Detailed Implementation

[0031] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0035] Please see Figures 1 to 3An embodiment of the resistance welding apparatus 10 includes a base plate 100, a support base 200, a welding needle assembly 300, and a bottom mold assembly 400. The support base 200 is disposed on the base plate 100. The welding needle assembly 300 includes a sliding seat 310, a driver 320, and a welding needle 330. The sliding seat 310 is slidably disposed on the support base 200 and connected to the driving end of the driver 320. The welding needle 330 is disposed on the side of the sliding seat 310 facing the base plate 100 to ensure that the welding needle 330 is positioned opposite to the welding column 420, thereby ensuring the normal operation of resistance welding. The bottom mold assembly 400 includes a fixing base 410 and a welding column 420; the resistance welding device 10 further includes a locking assembly, which includes a first locking member 510 and a second locking member 520; the base plate 100 has a first adjustment groove 110 formed at the position corresponding to the welding pin assembly 300, and the first locking member 510 passes through the mounting hole 4111a of the fixing base 410 and the first adjustment groove 110 in sequence to lock the fixing base 410 onto the base plate 100; the welding column 420 is disposed on the fixing base 410; the base plate 100 has a second adjustment groove 120 formed at the position corresponding to the support base 200, and the second locking member 520 passes through the through hole 210 of the support base 200 and the second adjustment groove 120 in sequence to lock the support base 200 onto the base plate 100.

[0036] It is understood that, since the base plate 100 has a first adjustment groove 110 corresponding to the position of the welding needle assembly 300, the first locking member 510 passes through the mounting hole 4111a of the fixed seat 410 and the first adjustment groove 110 in sequence to lock the fixed seat 410 onto the base plate 100; so as to realize the adjustable and detachable setting of the fixed seat 410 and the base plate 100. When it is necessary to adjust the position of the welding column 420, the operator can manually remove the first locking member 510, then move the fixed seat 410 to the position of the first adjustment groove 110, so that the welding column 420 located on the fixed seat 410 is aligned with the welding needle 330, and finally lock the first locking member 510, thereby realizing the individual adjustment of the horizontal direction of the welding column 420, which is especially suitable for resistance welding devices 10 with limited adjustment space for the welding needle 330.

[0037] It can also be understood that, since the base plate 100 has a second adjustment groove 120 corresponding to the position of the support base 200, the second locking member 520 passes through the through hole 210 of the support base 200 and the second adjustment groove 120 in sequence to lock and fix the support base 200 to the base plate 100, realizing the adjustable and detachable setting of the support base 200 and the base plate 100. When it is necessary to adjust the position of the welding needle 330, the operator can manually remove the second locking member 520, then move the support base 200 to the position of the second adjustment groove 120, so that the welding needle 330 on the support base 200 is aligned with the welding column 420, and finally lock the second locking member 520. The fastener 520 allows for individual horizontal adjustment of the welding needle 330, ensuring that the welding needle 330 and the welding column 420 are not interfered with during adjustment. This allows the operator to choose to adjust the welding column 420, the welding needle 330, or both simultaneously, depending on the actual application. This improves the flexibility of the resistance welding device 10. In particular, when used in conjunction with the sliding seat 310, the driver 320 can drive the welding needle 330 to move vertically in the support seat 200, better adapting to various applications with different specifications and usage scenarios. Furthermore, it eliminates the need for a more complex adjustment seat 412, making it easier for the operator to process and manufacture.

[0038] like Figure 3 As shown, in one embodiment, the extension directions of the first adjustment groove 110 and the second adjustment groove 120 are aligned with each other so that the operator can quickly and accurately adjust and align the welding needle 330 and the welding column 420.

[0039] like Figure 4 As shown, in one embodiment, the base plate 100 also forms a third adjustment groove 130, which is connected to the first adjustment groove 110, and the extension direction of the third adjustment groove 130 is perpendicular to the extension direction of the first adjustment groove 110, so that the operator can adjust the fixed seat 410 in different directions on the horizontal plane through the third adjustment groove 130, which further improves the flexibility of adjustment.

[0040] In one embodiment, the first adjustment groove 110 extends in the same direction as the X direction of the base plate 100, and the third adjustment groove 130 extends in the same direction as the Y direction of the base plate 100, so as to realize the rapid adjustment of the fixing seat 410 in the X and Y directions on the horizontal plane of the base plate 100.

[0041] In one embodiment, there are multiple first adjustment slots 110 and multiple third adjustment slots 130. Each first adjustment slot 110 and each third adjustment slot 130 is arranged alternately to form a first grid channel, which allows the operator to select the adjustment direction according to the actual situation, further improving the flexibility of adjustment, so as to better adapt to the welding applications of batteries with different angles and specifications.

[0042] like Figure 4 As shown, in one embodiment, each first adjustment groove 110 is equidistantly distributed along the width direction of the base plate 100, that is, the multiple first adjustment grooves 110 are uniformly distributed in the X direction of the horizontal plane of the base plate 100; each third adjustment groove 130 is distributed along the length direction of the base plate 100, that is, the multiple third adjustment grooves 130 are uniformly distributed in the Y direction of the horizontal plane of the base plate 100; thereby effectively increasing the adjustment area of ​​the fixing seat 410 in the XY direction of the horizontal plane of the base plate 100, so as to better adapt to the welding applications of batteries with different angles and specifications; and the uniformly distributed first adjustment grooves 110 and third adjustment grooves 130 can effectively avoid the problem of reduced structural strength of the base plate 100 due to uneven distribution of the first adjustment grooves 110 and third adjustment grooves 130.

[0043] Similarly, in order to improve the rapid adjustment of the support base 200 in the X and Y directions on the horizontal plane of the base plate 100, in one embodiment, the base plate 100 is further formed with a fourth adjustment groove 140. The fourth adjustment groove 140 is connected to the second adjustment groove 120, and the extension direction of the fourth adjustment groove 140 is perpendicular to the extension direction of the second adjustment groove 120. The extension direction of the second adjustment groove 120 is the same as the X direction of the base plate 100, and the extension direction of the fourth adjustment groove 140 is the same as the Y direction of the base plate 100, so as to realize the rapid adjustment of the support base 200 in the X and Y directions on the horizontal plane of the base plate 100.

[0044] In one embodiment, there are multiple second adjustment slots 120 and multiple fourth adjustment slots 140. Each second adjustment slot 120 and each fourth adjustment slot 140 is arranged alternately to form a second grid channel, which allows the operator to select the adjustment direction according to the actual situation, further improving the flexibility of adjustment, so as to better adapt to the welding applications of batteries with different angles and specifications.

[0045] like Figure 4As shown, in one embodiment, each of the second adjustment slots 120 is equidistantly distributed along the width direction of the base plate 100, that is, the multiple second adjustment slots 120 are uniformly distributed in the X direction of the horizontal plane of the base plate 100; each of the fourth adjustment slots 140 is distributed along the length direction of the base plate 100, that is, the multiple fourth adjustment slots 140 are uniformly distributed in the Y direction of the horizontal plane of the base plate 100; thereby effectively increasing the adjustment area of ​​the support base 200 in the XY direction of the horizontal plane of the base plate 100, so as to better adapt to the welding applications of batteries with different angles and specifications; and also effectively avoiding the problem of reduced structural strength of the base plate 100 due to uneven distribution of the second adjustment slots 120 and the fourth adjustment slots 140.

[0046] In one embodiment, the total area of ​​the first grid channel accounts for 1 / 4 to 1 / 2 of the total area of ​​the base plate 100, so as to ensure that the total area of ​​the first grid channel is appropriately distributed on the base plate 100, so as to meet the welding requirements of producing batteries of various specifications, while also reducing the excessive area of ​​the first grid channel and thus reducing the service life of the base plate 100.

[0047] In one embodiment, the total area of ​​the first grid channel accounts for 1 / 6 to 1 / 5 of the total area of ​​the base plate 100.

[0048] In one embodiment, the first locking member 510 is a first bolt and a first nut; the fixing seat 410 has the mounting hole 4111a, and the first nut is located on the side of the base plate 100 opposite to the fixing seat 410; the first bolt passes through the mounting hole 4111a and the first adjusting groove 110 in sequence, and is screwed into the first nut; so as to realize the locking and fixing of the first locking member 510 to the fixing seat 410.

[0049] Similarly, in one embodiment, the second locking member 520 is a second bolt and a second nut; the support base 200 has the through hole 210, and the second nut is located on the side of the base plate 100 opposite to the support base 200; the second bolt passes through the through hole 210 and the second adjusting groove 120 in sequence and is screwed into the second nut; so as to realize the locking and fixing of the support base 200 by the second locking member 520.

[0050] In one embodiment, the first locking member 510 further includes a washer disposed between the second bolt and the mounting hole 4111a of the fixing seat 410, so as to achieve reliable and stable locking and fixing of the fixing seat 410.

[0051] In one embodiment, the second locking member 520, the third locking member 4113 and the fourth locking member 4116 have a similar structure to the first locking member 510 to achieve a reliable and stable locking effect.

[0052] In one embodiment, the through hole 210 is an oblong hole, which allows the operator to make fine adjustments to the support 200 on the base plate 100 through the oblong hole, so as to better adapt to the application of some fine-tuning resistance welding devices 10.

[0053] like Figure 2 As shown, in one embodiment, the fixing base 410 includes a base 411, an adjusting base 412, and an insulating fixing block 413. The base 411 has the through hole 210. The adjusting base 412 is connected to one side of the base 411. The insulating fixing block 413 is disposed on one side of the adjusting base 412. The added adjusting base 412 facilitates the operator to adjust the distance between the insulating fixing block 413 and the welding post 420, so as to better adapt to the clamping and fixing of batteries of different specifications.

[0054] like Figure 2 As shown, in one embodiment, the base 411 includes a first clamping block 4111, a second clamping block 4112, a third locking member 4113, and a metal conductive rod 4115. The first clamping block 4111 has a mounting groove, in which a first arc-shaped positioning groove is formed. The second clamping block 4112 has a corresponding second arc-shaped positioning groove. The second clamping block 4112 is threadedly connected to the first clamping block 4111 via the third locking member 4113, so that the first arc-shaped positioning groove and the second arc-shaped positioning groove together form a clamping mechanism. The clamping cavity 4114 is used to clamp and fix the metal conductive rod 4115, such that the first arc-shaped positioning groove and the second arc-shaped positioning groove together form the clamping cavity 4114. The clamping cavity 4114 is used to clamp and fix the metal conductive rod 4115, and the metal conductive rod 4115 is insulated from the clamping cavity 4114. This allows for the clamping and fixing of metal conductive rods 4115 of different specifications, better adapting to the welding and fixing of batteries of different specifications, and facilitating the operator to disassemble and install damaged metal conductive rods 4115.

[0055] In one embodiment, an insulating sleeve is provided inside the clamping cavity 4114 to achieve an insulating separation between the clamping cavity 4114 and the metal conductive rod 4115.

[0056] It is also understandable that the added metal conductive rod 4115 not only provides better structural support for the welding column 420, but also has better conductivity and heat dissipation, so as to better adapt to the welding operation of high current resistance welding.

[0057] In one embodiment, the metal conductive rod 4115 is a brass rod.

[0058] In one embodiment, the welding post 420 is snapped onto the metal conductive rod 4115 to achieve a connection between the welding post 420 and the metal conductive rod 4115, thereby ensuring the normal operation of resistance welding.

[0059] It should be noted that the specific structure of the sliding seat 310 slidingly disposed on the support seat 200, the specific structure of the driver 320 and the sliding seat 310, and the specific structure of the welding pin 330 and the sliding seat 310 are existing technologies. Therefore, they will not be described in detail in this disclosure.

[0060] like Figure 2 As shown, in one embodiment, the adjusting seat 412 forms a fifth adjusting groove, and the base 411 further includes a fourth locking member 4116. The fourth locking member 4116 passes through the positioning hole of the insulating fixing clamp 413 and the fifth adjusting groove in sequence to fix the insulating fixing clamp 413 on the adjusting seat 412, thereby realizing the detachable adjustment of the adjusting seat 412 and the insulating fixing clamp 413, which makes it convenient for the operator to adjust the position of the insulating fixing clamp 413 on the fixing seat 410.

[0061] In one embodiment, the positioning hole and the mounting hole 4111a are both oblong holes, which allow the operator to make fine adjustments to the mounting base 410 on the base plate 100 through the oblong holes, so as to better adapt to the application of some fine-tuning resistance welding devices 10.

[0062] In one embodiment, the driver 320 is a cylinder or a rotary motor.

[0063] This disclosure also provides a battery welding apparatus, including the resistance welding device 10 described in any of the above embodiments. The battery welding apparatus further includes a hole-expanding device, which increases the aperture of the battery cell, allowing the welding needle 330 to more smoothly extend into the bottom of the cell, thereby completing the welding operation between the cell and the steel casing. In particular, the use of the first adjusting groove 110, the second adjusting groove 120, the first locking member 510, the second locking member 520, and the driver 320 allows the operator to select a convenient adjustment method according to actual needs, enabling rapid production line changeover operations for different batteries. Furthermore, the battery is a cylindrical battery.

[0064] Compared with the prior art, this disclosure has at least the following advantages:

[0065] 1) Since the base plate 100 has a first adjustment groove 110 corresponding to the position of the welding needle assembly 300, the first locking member 510 passes through the mounting hole 4111a of the fixed seat 410 and the first adjustment groove 110 in sequence to lock the fixed seat 410 onto the base plate 100; so as to realize the adjustable and detachable setting of the fixed seat 410 and the base plate 100. When it is necessary to adjust the position of the welding column 420, the operator can manually remove the first locking member 510, then move the fixed seat 410 to the position of the first adjustment groove 110, so that the welding column 420 on the fixed seat 410 is aligned with the welding needle 330, and finally lock the first locking member 510, thereby realizing the individual adjustment of the horizontal direction of the welding column 420, which is especially suitable for resistance welding devices 10 with limited adjustment space for the welding needle 330.

[0066] 2) Since the base plate 100 has a second adjustment groove 120 corresponding to the position of the support base 200, the second locking member 520 passes through the through hole 210 and the second adjustment groove 120 of the support base 200 in sequence to lock and fix the support base 200 to the base plate 100. This realizes the adjustable and detachable arrangement of the support base 200 and the base plate 100. When it is necessary to adjust the position of the welding needle 330, the operator can manually remove the second locking member 520 and then move the support base 200 to the position of the second adjustment groove 120 so that the welding needle 330 on the support base 200 is aligned with the welding column 420. Finally, the second locking element 520 is locked, thereby enabling individual adjustment of the horizontal direction of the welding needle 330. This allows the operator to choose to adjust the welding column 420 or the welding needle 330 individually or simultaneously, depending on the actual application. This improves the flexibility of the resistance welding device 10 adjustment. In particular, when used in conjunction with the sliding seat 310, the driver 320 can drive the welding needle 330 to move in the vertical direction of the support seat 200, so as to better adapt to various applications of different specifications and usage scenarios. Moreover, there is no need to add a more complex adjustment seat 412, which is convenient for the operator to process.

[0067] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A resistance welding apparatus, comprising a base plate, a support base, a welding pin assembly, and a bottom mold assembly, wherein the support base is disposed on the base plate, the welding pin assembly includes a sliding seat, a driver, and a welding pin, the sliding seat is slidably disposed on the support base and connected to the driving end of the driver, and the welding pin is disposed on the side of the sliding seat facing the base plate; the bottom mold assembly includes a fixed seat and a welding column; characterized in that, The resistance welding device further includes a locking assembly, which includes a first locking member and a second locking member; the base plate has a first adjustment groove formed corresponding to the position of the welding pin assembly, and the first locking member passes through the mounting hole of the fixed seat and the first adjustment groove in sequence to lock the fixed seat onto the base plate; the welding column is disposed on the fixed seat; The base plate has a second adjustment groove corresponding to the position of the support seat. The second locking member passes through the through hole of the support seat and the second adjustment groove in sequence to lock and fix the support seat to the base plate.

2. The resistance welding apparatus according to claim 1, characterized in that, The extension directions of the first adjustment groove and the second adjustment groove are aligned with each other.

3. The resistance welding apparatus according to claim 1, characterized in that, The base plate also has a third adjustment groove, which is connected to the first adjustment groove, and the extension direction of the third adjustment groove is perpendicular to the extension direction of the first adjustment groove.

4. The resistance welding apparatus according to claim 3, characterized in that, There are multiple first adjustment slots and multiple third adjustment slots, and each first adjustment slot and each third adjustment slot is arranged alternately to form a first grid channel.

5. The resistance welding apparatus according to claim 3, characterized in that, The base plate also has a fourth adjustment groove, which is connected to the second adjustment groove, and the extension direction of the fourth adjustment groove is perpendicular to the extension direction of the second adjustment groove.

6. The resistance welding apparatus according to claim 5, characterized in that, There are multiple second adjustment slots and multiple fourth adjustment slots, and each second adjustment slot and each fourth adjustment slot is arranged alternately to form a second grid channel.

7. The resistance welding apparatus according to claim 1, characterized in that, The first locking element is a first bolt and a first nut; the fixing base has the mounting hole, and the first nut is located on the side of the base plate opposite to the fixing base; the first bolt passes through the mounting hole and the first adjusting groove in sequence, and is screwed into the first nut; and / or, The second locking element is a second bolt and a second nut; the support base has the through hole, and the second nut is located on the side of the base plate opposite to the support base; the second bolt passes through the through hole and the second adjusting groove in sequence, and is screwed into the second nut; and / or, The through hole is a waist-shaped hole.

8. The resistance welding apparatus according to claim 7, characterized in that, The fixing base includes a base, an adjusting base, and an insulating fixing block. The base has the through hole, the adjusting base is connected to one side of the base, and the insulating fixing block is disposed on one side of the adjusting base.

9. The resistance welding apparatus according to claim 8, characterized in that, The base includes a first clamping block, a second clamping block, a third locking member, and a metal conductive rod. The first clamping block has a mounting groove, within which a first arc-shaped positioning groove is formed. The second clamping block has a corresponding second arc-shaped positioning groove. The second clamping block is threadedly connected to the first clamping block via the third locking member, such that the first and second arc-shaped positioning grooves together form a clamping cavity. The clamping cavity is used to clamp and fix the metal conductive rod, and the metal conductive rod is insulated from and separated from the clamping cavity; and / or The adjusting seat has a fifth adjusting groove, and the base also includes a fourth locking member. The fourth locking member passes through the positioning hole of the insulating fixing clamp and the fifth adjusting groove in sequence to fix the insulating fixing clamp onto the adjusting seat.

10. A battery welding device, characterized in that, The resistance welding apparatus includes any one of claims 1-9.

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