CN220679810U - Welding jig for explosion-proof valve of power battery shell - Google Patents
Welding jig for explosion-proof valve of power battery shell Download PDFInfo
- Publication number
- CN220679810U CN220679810U CN202321921262.2U CN202321921262U CN220679810U CN 220679810 U CN220679810 U CN 220679810U CN 202321921262 U CN202321921262 U CN 202321921262U CN 220679810 U CN220679810 U CN 220679810U
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- CN
- China
- Prior art keywords
- power battery
- mold core
- explosion
- proof valve
- support
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- 238000003466 welding Methods 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 10
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a welding jig for an explosion-proof valve of a power battery shell, which comprises a support, a mold core arranged on the support, a positioning part detachably arranged on the upper surface of the mold core and corresponding to the position of an explosion-proof valve mounting hole of the power battery shell, and a pressing assembly for pressing the upper side wall of the power battery shell on the upper surface of the mold core; according to the utility model, the positioning groove for positioning is formed on the mold core, the positioning block clamped in the positioning groove is used for positioning the power battery shell to be welded in the horizontal direction, and the pressing assembly arranged on the bottom plate is matched for positioning the power battery shell in the vertical direction, so that the side wall of the battery shell is prevented from deforming due to the fact that the air cylinder pushes the battery shell from the side face, and the product can keep higher quality.
Description
Technical Field
The utility model relates to the field of welding jigs, in particular to a welding jig for an explosion-proof valve of a power battery shell.
Background
The battery case of the power battery is usually formed by an aluminum extrusion process, and the thickness of the side wall of the battery case is about 0.6-1.5 mm. The welding jig is generally adopted for fixing in the process of welding the explosion-proof valve, the traditional welding jig comprises a mold core and a cylinder arranged on one lateral side of the mold core, and a certain gap is reserved between the side face of the mold core and the corresponding side face of the battery shell. When the battery shell is fixed, the power battery shell is sleeved on the mold core, one side of the battery shell is pushed and positioned by the air cylinder arranged on one lateral side of the mold core, the pushing force of the air cylinder easily causes serious deformation of the side wall of the battery shell, and the yield is low.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the utility model provides a power battery shell explosion-proof valve welding jig sets up positioning groove on the mold core to with the card locate locating piece in the positioning groove and locate the pressfitting subassembly cooperation on the bottom plate and fix a position power battery shell, effectively avoided the lateral wall deformation of power battery shell, guaranteed product quality.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a power battery shell explosion-proof valve welding jig, include the support and locate mold core on the support, still including can dismantle set up in mold core upper surface department corresponds the location portion of the explosion-proof valve mounting hole department of power battery shell and be used for with the upper side wall of power battery shell compress tightly in the pressfitting subassembly of mold core upper surface.
Further, the transverse width of the mold core is smaller than that of the inner cavity of the power battery shell, and the height of the mold core is smaller than that of the inner cavity of the power battery shell; the mold core is provided with a positioning groove matched with the positioning part at the position corresponding to the explosion-proof valve mounting hole of the power battery shell, the positioning part is limited to be a positioning block assembled in the positioning groove, and the positioning block protrudes out of the upper surface of the mold core and is profiled with the explosion-proof valve mounting hole and is used for positioning the power battery shell in the horizontal direction.
Further, an annular groove surrounding the periphery of the positioning groove is formed in the upper surface of the mold core, and a sealing ring is arranged in the annular groove, so that when the pressing assembly is pressed on the mold core, the sealing ring is pressed between the annular groove and the pressing assembly to play a sealing role.
Further, the pressing assembly comprises a pressing block arranged above the mold core and a vertical driving unit used for driving the pressing block to move along the vertical direction so as to press the battery shell on the upper surface of the mold core.
Further, the pressing block comprises a connecting part connected with an output shaft of the pressing cylinder and a pressing part connected with the connecting part and positioned right above the mold core; the position department that the pressfitting portion corresponds to explosion-proof valve mounting hole of power battery shell is provided with the through-hole that suits with it, when pressfitting portion pressfitting in on the mold core, the through-hole is around outside the explosion-proof valve mounting hole.
Further, the size of the through hole is gradually increased from bottom to top.
Further, the support comprises a bottom plate and a support arranged on the bottom plate, one end of the mold core is abutted to one side face of the support, the lower portion of the mold core is suspended, and the pressing assembly is arranged on the bottom plate and located at a position outside one lateral side of the mold core.
Further, the support is arranged at one end of the bottom plate, and comprises a first support arranged along the width direction of the bottom plate and a second support arranged at one side of the first support and having a stabilizing effect on the first support, and the mold core is arranged on one side surface of the first support, which is far away from the second support.
Further, the two second brackets are limited to two, the two second brackets are symmetrically arranged on one side of the first bracket by taking the central axis of the first bracket as a symmetry axis, inclined planes are arranged on one sides of the two second brackets, which are far away from the first bracket, and the inclined planes gradually decrease from being close to the first bracket to being far away from the first bracket.
Further, a third bracket for installing the pressing assembly is further arranged on the bottom plate, and the pressing assembly is arranged on one side, close to the mold core, of the third bracket.
The welding jig for the explosion-proof valve of the power battery has at least the following beneficial effects: the positioning groove for positioning is formed in the mold core, the positioning block clamped in the positioning groove is used for positioning the power battery shell to be welded in the horizontal direction, and the pressing assembly arranged on the bottom plate is matched for positioning the power battery shell in the vertical direction, so that the side wall of the power battery shell is not easy to deform, and the product can keep higher quality.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic diagram of a power battery case of a welding jig for an explosion-proof valve of a power battery case of the utility model;
FIG. 2 is a schematic diagram of an embodiment of a welding fixture for an explosion-proof valve of a power battery case;
FIG. 3 is a second schematic structural view of an embodiment of the explosion-proof valve welding fixture for a power battery case according to the present utility model;
FIG. 4 is a third schematic structural view of an embodiment of an explosion-proof valve welding fixture for a power battery case according to the present utility model;
fig. 5 is a schematic structural diagram of an embodiment of a welding fixture for an explosion-proof valve of a power battery case according to the present utility model.
The meaning of the reference numerals in the drawings are:
the power battery case 1, the cavity 11 and the explosion-proof valve mounting hole 12; the device comprises a support 2, a bottom plate 21, a strip-shaped hole 211, a first bracket 22, a second bracket 23 and an inclined plane 24; the mold core 3, the positioning groove 31, the ring groove 32 and the sealing ring 33; positioning block 4, convex part 41; the pressing assembly 5, the pressing block 51, the connecting part 511, the pressing part 512, the transition inclined plane 513, the through hole 514 and the pressing cylinder 52; a third bracket 6; an explosion valve 7.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1, in order to more clearly explain the explosion-proof valve welding jig for a power battery case, the outline structure of the power battery case is preferably described. The power battery shell 1 is rectangular in whole, a cavity 11 is formed in the middle of the power battery shell, and the cavity 11 is distributed along the length direction of the power battery shell 1 and penetrates through two ends of the power battery shell 1. An explosion-proof valve mounting hole 12 for mounting the explosion-proof valve 7 is formed in the upper side wall of the power battery case 1. It should be understood that the terms "upper", "lower", etc. that refer to directions are shown in the drawings, for example, the upper side wall of the power battery case 1 described above refers to the side wall that faces upward in the drawings.
Referring to fig. 2 to 5, the welding jig for the explosion-proof valve of the power battery case of the present utility model includes a support 2, a mold core 3 disposed on the support 2, a positioning portion disposed on the upper surface of the mold core 3 and corresponding to the position of the explosion-proof valve mounting hole 12, and a pressing assembly 5 for pressing the upper sidewall of the power battery case 1 onto the upper surface of the mold core 3.
The support 2 includes a base plate 21 and a bracket disposed on an upper surface of the base plate 21. At least two side positions of the bottom plate 21 are provided with assembly holes, which are defined as bar-shaped holes 211 for adjusting the relative positions thereof when assembling the explosion-proof valve welding jig for the battery case. The support is disposed at one end of the bottom plate 21, and includes a first support 22 vertically disposed along the width direction of the bottom plate 21, and a second support 23 disposed outside the first support 22 and having a stabilizing effect on the first support 22. The two second brackets 23 are defined, and the two second brackets 23 are disposed on the upper portion of the bottom plate 21 along the longitudinal direction of the bottom plate 21 and symmetrically disposed on the outer side of the first bracket 22 with the central axis of the first bracket 22 as a symmetry axis. The two second brackets 23 each have a horizontal surface connected to the bottom plate 21, a vertical surface connected to the outer side surface of the first bracket 22, and a slope surface 24 connected between the horizontal surface and the vertical surface, and the slope surface 24 is gradually lowered from a direction approaching the first bracket 22 to a direction separating from the first bracket 22.
The mold core 3 is disposed on a side (inner side) of the first support 22 away from the second support 23, a lateral width of the mold core 3 is smaller than a lateral width of the inner cavity of the power battery case 1, and a height of the mold core 3 is smaller than a height of the inner cavity of the power battery case 1. The upper surface of the mold core 3 is provided with a positioning groove 31 matched with the explosion-proof valve mounting hole 12 at a position corresponding to the explosion-proof valve mounting hole 12 of the power battery case 1, and the positioning groove 31 is matched with the positioning part for the positioning part to be assembled therein. The upper surface of the mold core 3 is provided with a ring groove 32 surrounding the periphery of the positioning groove 31, and the ring groove 32 penetrates through the mold core 3 upwards. The ring groove 32 is internally provided with a sealing ring 33, and when the pressing assembly 5 is pressed on the mold core 3, the sealing ring 33 is pressed between the ring groove 32 and the pressing assembly 5 to play a sealing role.
The positioning portion is defined as a positioning block 4 fitted in the positioning groove 31, the positioning block 4 being contoured with the explosion-proof valve mounting hole 12 and protruding upward from the power battery case 1 to position the power battery case 1 in cooperation with the press-fit assembly 5. The upper surface of the positioning block 4 is provided with a protruding portion 41, and the protruding portion 41 may be defined as a column, a stud, a bump, a lug handle, etc., so that a user can conveniently hold the positioning block 4. The height of the protruding portion 41 may be adapted to the height of the through hole 514, and the size of the through hole 514 is not limited when the user holds the protruding portion 41 after the pressing assembly 5 is pressed onto the mold core 3.
The upper part of the bottom plate 21 is also provided with a third bracket 6 for installing the pressing assembly 5, and the third bracket 6 is vertically arranged on the upper surface of the bottom plate 21 along the length direction of the bottom plate 21 and is positioned on one lateral side of the mold core 3. The pressing assembly 5 is arranged on one side, close to the mold core 3, of the third bracket 6, and comprises a pressing block 51 arranged above the mold core 3 and a vertical driving unit used for driving the pressing block 51 to move in the vertical direction so as to press the power battery case 1 on the upper surface of the mold core 3. In the embodiment shown, the vertical drive unit is defined as a press-fit cylinder 52, which press-fit cylinder 52 is mounted on the third support 6 on the side close to the mould core 3 and whose output shaft protrudes vertically upwards. The pressing block 51 includes a connection portion 511 directly connected to an output shaft of the pressing cylinder 52, and a pressing portion 512 connected to the connection portion 511 and located right above the mold core 3. The connecting portion 511 is horizontally disposed at the top of the output shaft of the pressing cylinder 52, and the pressing portion 512 is disposed at a position of the connecting portion 511, which is close to the mold core 3 and corresponds to the positioning groove 31. The thickness of the connecting portion 511 is greater than that of the pressing portion 512, and a transition slope 513 is disposed between the connecting portion 511 and the pressing portion 512. The position of the pressing portion 512 corresponding to the positioning groove 31 is provided with a through hole 514 adapted to the positioning groove, the through hole 514 penetrates through the pressing portion 512 along the vertical direction, and the cross section size of the through hole 514 is gradually increased from bottom to top so that a user can conveniently perform subsequent welding work of the explosion-proof valve 7. When the pressing portion 512 is pressed onto the mold core 3, the through hole 514 is wound around the outer periphery of the explosion-proof valve mounting hole 12.
The working mode of one embodiment of the explosion-proof valve welding jig for the power battery shell is as follows: in the initial state, the output shaft of the pressing cylinder 52 extends out to enable the pressing block 51 and the upper surface of the mold core 3 to be in a non-contact state. The positioning block 4 is placed in the positioning groove 31, so that the first air hole and the second air hole are aligned and communicated. And the inner cavity 11 of the power battery shell 1 to be welded is aligned with one side of the mold core 3, which is far away from the first support 22, and sleeved until the end part of the power battery shell 1 is abutted with the corresponding side surface of the first support 22, so that the upper side wall of the power battery shell 1 is abutted with the upper surface of the mold core 3, at the moment, the explosion-proof valve mounting hole 12 is surrounded on the periphery of the positioning block 4, and the power battery shell 1 is limited and fixed. Then, the pressing cylinder 52 is started to retract the output shaft thereof to drive the pressing block 51 to move downwards until the pressing block is abutted against the power battery case 1, at this time, the pressing block 51 presses the power battery case 1 onto the mold core 3, and the through hole 514 is wound around the periphery of the positioning block 4. And taking out the positioning block 4 to expose the explosion-proof valve mounting hole 12, putting the explosion-proof valve 7 to be welded into the explosion-proof valve mounting hole 12, and performing welding operation. After the welding is finished, the pressing cylinder 52 is started to enable the output shaft of the pressing cylinder to extend out so as to drive the pressing block 51 to move upwards, and the power battery shell 1 after the welding is finished is taken out.
Compared with the prior art, the welding jig for the explosion-proof valve of the power battery shell is provided with the positioning groove for positioning, the positioning block clamped in the positioning groove is used for positioning the power battery shell to be welded in the horizontal direction, and the pressing assembly arranged on the bottom plate is matched for positioning the power battery shell in the vertical direction, so that the side wall of the battery shell is prevented from being deformed due to the fact that the battery shell is pushed by the air cylinder from the side face, and the product can keep higher quality.
Claims (10)
1. The utility model provides a power battery shell explosion-proof valve welding jig, includes the support and locates mold core on the support, its characterized in that: the power battery shell explosion-proof valve assembly comprises a mold core, a positioning part and a pressing assembly, wherein the positioning part is detachably arranged at the position, corresponding to an explosion-proof valve mounting hole, of the power battery shell, at the upper surface of the mold core, and the pressing assembly is used for pressing the upper side wall of the power battery shell to the upper surface of the mold core.
2. The welding jig for the explosion-proof valve of the power battery case according to claim 1, wherein: the transverse width of the mold core is smaller than that of the inner cavity of the power battery shell, and the height of the mold core is smaller than that of the inner cavity of the power battery shell; the mold core is provided with a positioning groove matched with the positioning part at the position corresponding to the explosion-proof valve mounting hole of the power battery shell, the positioning part is limited to be a positioning block assembled in the positioning groove, and the positioning block protrudes out of the upper surface of the mold core and is profiled with the explosion-proof valve mounting hole and is used for positioning the power battery shell in the horizontal direction.
3. The welding jig for the explosion-proof valve of the power battery case according to claim 2, wherein: the upper surface of the mold core is provided with a ring groove surrounding the periphery of the positioning groove, and a sealing ring is arranged in the ring groove, and when the pressing assembly is pressed on the mold core, the sealing ring is pressed between the ring groove and the pressing assembly to play a sealing role.
4. The welding jig for the explosion-proof valve of the power battery case according to claim 1, wherein: the pressing assembly comprises a pressing block arranged above the mold core and a vertical driving unit used for driving the pressing block to move along the vertical direction so as to press the power battery shell on the upper surface of the mold core.
5. The welding jig for the explosion-proof valve of the power battery case according to claim 4, wherein: the pressing block comprises a connecting part connected with an output shaft of the vertical driving unit and a pressing part connected with the connecting part and positioned right above the mold core; the position department that the pressfitting portion corresponds to explosion-proof valve mounting hole of power battery shell is provided with the through-hole that suits with it, when pressfitting portion pressfitting in on the mold core, the through-hole is around outside the explosion-proof valve mounting hole.
6. The welding jig for the explosion-proof valve of the power battery case according to claim 5, wherein: the size of the through hole is gradually increased from bottom to top.
7. The welding jig for the explosion-proof valve of the power battery case according to claim 1, wherein: the support comprises a bottom plate and a support arranged on the bottom plate, one end of the mold core is abutted to one side face of the support, the lower portion of the mold core is suspended, and the pressing assembly is arranged on the bottom plate and located at a position outside one lateral side of the mold core.
8. The welding jig for the explosion-proof valve of the power battery case according to claim 7, wherein: the support is located the one end of bottom plate, including one along the first support that the width direction of bottom plate set up and locate first support one side is right first support plays the second support of stabilization effect, the mold core is located on the first support is kept away from on the side of second support.
9. The power cell case explosion-proof valve welding jig of claim 8, wherein: the second supports are limited to two, the two second supports are symmetrically arranged on one side of the first support by taking the central axis of the first support as a symmetry axis, inclined planes are arranged on one sides of the two second supports, which are far away from the first support, and the inclined planes gradually decrease from being close to the first support to being far away from the first support.
10. The welding jig for the explosion-proof valve of the power battery case according to claim 7, wherein: and a third bracket for installing the pressing assembly is further arranged on the bottom plate, and the pressing assembly is arranged on one side, close to the mold core, of the third bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921262.2U CN220679810U (en) | 2023-07-20 | 2023-07-20 | Welding jig for explosion-proof valve of power battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921262.2U CN220679810U (en) | 2023-07-20 | 2023-07-20 | Welding jig for explosion-proof valve of power battery shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220679810U true CN220679810U (en) | 2024-03-29 |
Family
ID=90403644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321921262.2U Active CN220679810U (en) | 2023-07-20 | 2023-07-20 | Welding jig for explosion-proof valve of power battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220679810U (en) |
-
2023
- 2023-07-20 CN CN202321921262.2U patent/CN220679810U/en active Active
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