Aluminum shell explosion-proof valve welding tool

Abstract

The invention discloses an aluminum shell explosion-proof valve welding tool which comprises a displacement sliding table, a supporting flat plate is installed at the sliding end of the displacement sliding table, a positioning assembly is arranged on the supporting flat plate, working supports are arranged on the outer sides of the two ends of the displacement sliding table, a melting groove stamping device is arranged on one working support, and a laser welding device is arranged on the other working support. The positioning assembly comprises a supporting vertical plate, positioning side plates are arranged on the two sides of the supporting vertical plate, a working cavity is formed in the middle of the inner side of the supporting vertical plate, a centering assembly is movably installed in the middle of the inner side of the working cavity, an air suction sliding groove is formed in the lower portion of the inner side of the supporting vertical plate, and an air suction pipe is installed on one side of the air suction sliding groove. The upper side and the lower side of the positioning side plate are each provided with two positioning frames, molten metal in the welding process is received through the receiving melting groove, the radian of the top of the molten metal is reduced, the situation that the battery anti-explosion valve deviates due to the influence of adhesive force in the welding process is avoided through the centering assembly, and all positions of a welding seam are tightly connected and evenly distributed.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum shell welding, in particular to an aluminum shell explosion-proof valve welding tool. Background Art

[0002] Currently, most power batteries use lithium batteries encapsulated in aluminum shells. The explosion-proof valve is a thin-walled valve body on the battery sealing plate. When the internal pressure of the battery exceeds the specified value, the explosion-proof valve body ruptures to prevent the battery from bursting. Laser welding machines are generally used for connection, and welding tools are usually used for fixing during welding.

[0003] The application document with publication number CN118559261A discloses a welding fixture system for an explosion-proof valve of a battery cell housing, comprising: a positioning pin, which is used to fit the battery cell housing; a clamping structure, which is arranged on the side of the positioning pin and is used to clamp and fix the battery cell housing and the positioning pin; and a fixing structure, which is used to fix the explosion-proof valve at the welding position of the battery cell housing. The battery cell housing is directly fitted on the positioning pin when loading.

[0004] According to the above patents and prior art, the following questions are obtained:

[0005] Problem 1: Because the various components of the above device only ensure that the battery cell shell remains stable during the welding process, the flatness of the weld surface is poor, and a large convex edge structure is easily generated;

[0006] Problem 2: Because the above device lacks an adaptable structure and an accurate positioning structure, it cannot adapt to aluminum shells of various sizes and specifications, and is difficult to align;

[0007] Problem 3: Because the above device lacks a limiting structure, it is impossible to keep both sides of the molten tank stable during the welding process, which can easily cause the explosion-proof valve itself to shake during welding, causing adverse effects. Summary of the invention

[0008] The purpose of the present invention is to provide an aluminum shell explosion-proof valve welding tool to improve the overall work efficiency in view of the above-mentioned problems and shortcomings.

[0009] The present invention solves at least one of the following technical problems:

[0010] (1) The flatness of the weld surface is not good, which easily produces a large convex edge structure;

[0011] (2) It cannot adapt to aluminum shells of various sizes and specifications, and it is difficult to align;

[0012] (3) It is impossible to keep both sides of the molten tank stable during welding, which may easily cause the explosion-proof valve itself to shake during welding, causing adverse effects.

[0013] The purpose of the present invention can be achieved through the following technical scheme: an aluminum shell explosion-proof valve welding tool, including a shift slide, a supporting plate is installed at the sliding end of the shift slide, a positioning assembly is provided on the supporting plate, working brackets are provided on the outer sides of both ends of the shift slide, one of the working brackets is provided with a molten groove punch, and the other working bracket is provided with a laser welder, the positioning assembly includes a supporting vertical plate, positioning side plates are provided on both sides of the supporting vertical plate, a working chamber is opened in the middle of the inner side of the supporting vertical plate, a centering assembly is movably installed in the middle of the inner side of the working chamber, an air suction chute is opened in the lower inner side of the supporting vertical plate, an air suction chute is installed on one side of the air suction chute, and two positioning frames are provided on the upper and lower sides of the positioning side plate.

[0014] As a further scheme of the invention, a first screw and a second screw are respectively installed in the working chamber, and both the first screw and the second screw are bidirectional screws. The second screw is located above the first screw, and the centering assembly is installed on the second screw. First support blocks are threadedly sleeved on both sides of the first screw, and second support blocks are rotatably sleeved on both sides of the second screw, and the second support block is slidably connected to the inner wall of the working chamber, and a first oblique rod is hinged between the first support block and the second support block.

[0015] As a further scheme of the invention, a centering groove is opened in the top center of the supporting vertical plate, one end of the first screw rod is fixedly connected to a transmission shaft, one end of the transmission shaft is fixedly connected to a first knob, the transmission shaft passes through the supporting vertical plate and is rotatably connected thereto, a first groove is opened through the middle part of one end of the supporting vertical plate, a first slider is slidably connected in the first groove, one end of the second screw rod passes through the first slider, and a second knob is installed on the end of the second screw rod.

[0016] As a further solution of the invention, second sliding grooves are symmetrically provided on the upper and lower sides of the positioning side plate, the second sliding grooves correspond one-to-one to the positioning frame, a positioning block is installed in the middle of the second sliding groove, first springs are installed on both sides of the positioning block, a second slider is installed on the end of the first spring, the second slider is slidably connected to the second sliding groove, and a second diagonal rod is hingedly installed between the second slider and the positioning frame.

[0017] As a further solution of the invention, a third sliding groove is opened on the upper and lower sides of both ends of the supporting vertical plate, a third slider is slidably connected in the third sliding groove, a second spring is installed between one end of the third slider and the groove wall of the third sliding groove, and a third diagonal rod is hingedly installed between the third slider and the side edge of the positioning side plate.

[0018] As a further solution of the invention, an intake piston is movably installed in the intake pipe, the intake piston maintains contact and sealing with the intake pipe, the intake piston is fixedly connected with an intake transmission rod, the intake transmission rod passes through one end of the intake pipe, and the intake transmission rod is fixedly connected with a transmission slider, which is slidably connected to the intake slide groove.

[0019] As a further scheme of the invention, an intake screw is rotatably connected in the intake slide groove, the intake screw thread passes through the transmission slider, one end of the intake screw passes through the supporting vertical plate and is rotatably connected thereto, a third knob is installed on the end of the intake screw, an air guide pipe is buried in the supporting vertical plate, and the air guide pipe is communicated with the intake pipe.

[0020] As a further scheme of the invention, the centering assembly includes a centering slider, which is provided with two symmetrical threads sleeved on the corresponding threads of the second screw rod, and a crimping support block is installed on the centering slider, and a centering top block is fixedly connected to the middle part of the upper surface of the crimping support block, and a plurality of air intake holes are opened on the upper surface of the centering top block, and a shunt pipe is buried in the crimping support block, and the shunt pipe is connected to the corresponding air intake holes, and the shunt pipe is connected to a first hose, and the two first hoses are connected to the air guide pipe through the second hose.

[0021] As a further solution of the invention, the centering slider is slidably connected to the inner wall of the working chamber, and a supporting pad is clamped and installed between the two crimping support blocks. The upper surface of the supporting pad is flush with and has the same width as the upper surface of the crimping support block.

[0022] As a further scheme of the invention, limit assemblies are provided on the support plate and on both sides of the positioning assembly, the limit assemblies include a horizontal push rod, an L-shaped slide is installed on the top pushing end of the horizontal push rod, the horizontal section of the L-shaped slide is slidably connected to the horizontal push rod to maintain horizontality, a side limit block is provided on the end face of the L-shaped slide, a number of spring rods evenly distributed in a rectangular array are provided between the side limit block and the L-shaped slide, a shock-absorbing pad is installed on the side of the side limit block, a vertical push rod is installed on the top of the L-shaped slide, a support sleeve is installed on the top pushing end of the vertical push rod, the support sleeve is horizontally arranged, a limit pressure plate is spliced ​​and installed in the support sleeve, a limit pressure block is spliced ​​and installed on the end of the limit pressure plate, and a melt slot punch head is spliced ​​and installed on the punching end of the melt slot punch, and the melt slot punch head corresponds to the mounting slot.

[0023] Beneficial effects of the present invention:

[0024] (1) During operation, the battery aluminum shell is installed by the positioning assembly, and then the shift slide moves the positioned battery aluminum shell to the bottom of the molten groove punch. The molten groove punch punches the top edge of the installation groove to form a receiving molten groove. After punching, the shift slide is reset first. After the battery explosion-proof valve is installed in the installation groove, the battery explosion-proof valve is limited by the centering assembly. Then, the battery aluminum shell is moved to the bottom of the laser welder. The laser welder welds the battery explosion-proof valve and the battery aluminum shell together along the edge of the installation groove. The receiving molten groove receives the molten metal during the welding process and reduces the curvature of the top of the molten metal, so that the surface of the weld joint remains flat. The centering assembly is used to prevent the battery explosion-proof valve from being offset due to the influence of the adhesion during welding, further improving the surface flatness of the weld, and making the welds tightly connected and evenly distributed.

[0025] (2) During operation, the battery aluminum shell is positioned horizontally by pushing the positioning side plates toward both sides, and the battery aluminum shell is positioned vertically by pushing the positioning frame, and the battery aluminum shell is positioned horizontally and vertically by the centering assembly, thereby completing the positioning of the battery aluminum shell in a three-dimensional orthogonal coordinate system, and making the groove center of the mounting groove coplanar with the molten groove punching head and the welding head of the laser welder, and accurately positioning the mounting groove to facilitate accurate stamping and forming of the molten groove, and further making the molten metal in the welding process evenly distributed and the surface flat, thereby improving the overall flatness;

[0026] (3) During operation, the second inclined rod pushes the second slider to compress the first spring to generate elastic force as a reaction force, thereby pushing the positioning frame back to adjust the battery aluminum shell in the vertical direction, and the third inclined rod pushes the third slider to compress the second spring to form elastic force, thereby pushing the positioning side plate back to adjust the battery aluminum shell in the horizontal direction, and the second screw rod pushes the two centering sliders symmetrically and together, and then the first screw rod pushes them up and passes through the middle of the centering slot until the upper surface of the crimping support block is aligned with the top inner surface of the battery aluminum shell. The side walls are abutted, and then the second screw is rotated to separate the centering slider, and the crimping support blocks are pushed to both sides synchronously until the two centering top blocks are abutted against the end sides of the mounting groove, thereby completing the centering of the battery aluminum shell, so that the axis of the mounting groove is located in the same vertical plane as the molten groove punch and the laser welder, accurately positioning the battery aluminum shells of various specifications in three axes, and further accurately positioning the mounting groove and the battery explosion-proof valve, so that the final weld width is uniform, the weld surface is flat, and the battery explosion-proof valve is densely connected to the groove wall of the mounting groove;

[0027] (4) During operation, the centering assembly is lowered, and after the receiving molten groove is punched, the battery explosion-proof valve is placed in the installation groove, and then the centering assembly is lifted until the upper surface of the centering top block abuts against the battery explosion-proof valve, and then the third knob is turned to move the transmission slider through the suction screw, and then the suction piston is moved through the suction transmission rod to reduce the air pressure in the air guide pipe, thereby forming a low pressure in the centering assembly, so that the suction through hole adsorbs the battery explosion-proof valve and limits it, and the stability of the battery explosion-proof valve is maintained by the centering assembly itself, thereby improving the flatness of the weld surface by improving the stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a top view of the overall structure of the present invention;

[0030] Figure 2A top view of the overall structure of the positioning assembly of the present invention;

[0031] Figure 3 A side view of the internal structure of the positioning side plate of the present invention;

[0032] Figure 4 A side view of the internal structure of the support vertical plate when the centering assembly of the present invention is not extended;

[0033] Figure 5 for Figure 4 A magnified schematic diagram of the middle A area;

[0034] Figure 6 for Figure 4 The enlarged diagram of the B area;

[0035] Figure 7 It is a side view of the internal structure of the supporting vertical plate when the centering assembly of the present invention is connected with the installation groove;

[0036] Figure 8 for Figure 7 Enlarged schematic diagram of the middle C area;

[0037] Fig. 9 A side view of the internal structure of the vertical plate supporting the battery explosion-proof valve when the battery explosion-proof valve is placed in the present invention;

[0038] Fig.10 for Fig. 9 A magnified schematic diagram of the middle D area;

[0039] Fig.11 It is a side view of the overall structure of the centering assembly of the present invention;

[0040] Fig.12 It is a side view of a local structure of a molten groove punch head punching a molten groove to receive the molten groove of the present invention;

[0041] Fig.13 It is a side view of the overall structure of the limiting assembly of the present invention;

[0042] In the figure: 101, shift slide; 102, support plate; 103, positioning assembly; 104, limit assembly; 105, working bracket; 106, melt groove punch; 107, laser welder; 201, support vertical plate; 202, working chamber; 203, first screw; 204, second screw; 205, first support block; 206, second support block; 207, first oblique rod; 208, centering assembly; 209, centering slide; 210, transmission shaft; 211, first knob; 212, first slide; 213, first slider; 214, second knob; 301, positioning side plate; 302, second slide; 303, positioning block; 304, first spring; 305, second slider; 306, positioning frame; 307, second oblique rod; 308, third slide; 309, third slider; 310, third Oblique rod; 311, second spring; 401, suction slide; 402, suction pipe; 403, suction piston; 404, suction transmission rod; 405, transmission slider; 406, suction screw; 407, third knob; 408, air guide tube; 501, centering slider; 502, crimping support block; 503, centering top block; 504, support pad; 505, suction through hole; 506, shunt pipe; 507 , first hose; 508, second hose; 601, horizontal push rod; 602, L-shaped slide; 603, spring rod; 604, side limit block; 605, shock-absorbing cushion; 606, vertical push rod; 607, support sleeve; 608, limit pressure plate; 609, limit pressure block; 610, melt tank punch head; 701, battery aluminum shell; 702, installation groove; 703, battery explosion-proof valve; 704, receiving melt tank. DETAILED DESCRIPTION

[0043] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0044] See also Figure 1-13As shown: a welding tool for an aluminum shell explosion-proof valve, comprising a shift slide 101, a supporting plate 102 is installed at the sliding end of the shift slide 101, a positioning assembly 103 is arranged on the supporting plate 102, working brackets 105 are arranged on the outer sides of both ends of the shift slide 101, a molten groove punch 106 is arranged on one of the working brackets 105, and a laser welder 107 is arranged on the other working bracket 105, the positioning assembly 103 comprises a supporting vertical plate 201, positioning side plates 301 are arranged on both sides of the supporting vertical plate 201, a working chamber 202 is opened in the middle of the inner side of the supporting vertical plate 201, a centering assembly 208 is movably installed in the middle of the inner side of the working chamber 202, an air suction chute 401 is opened in the lower inner side of the supporting vertical plate 201, an air suction chute 401 is installed on one side of the air suction chute 401, and two positioning frames 306 are arranged on the upper and lower sides of the positioning side plate 301;

[0045] When the present embodiment is working, the working ends of the molten groove punch 106 and the laser welder 107, the sliding end of the shift slide 101, and the centering assembly 208 are all located on the same vertical plane. The battery aluminum shell 701 is installed by the positioning assembly 103. The top of the battery aluminum shell 701 has been provided with an installation groove 702 for installing the battery explosion-proof valve 703. During installation, the positioning side plate 301 is located inside the battery aluminum shell 701, and the positioning side plate 301 is pushed to both sides to adjust the battery aluminum shell 701 in the horizontal direction. The battery aluminum shell 701 is positioned upward, and the positioning frame 306 is pushed to position the battery aluminum shell 701 in the vertical direction. Then the battery aluminum shell 701 is moved to the middle of the supporting vertical plate 201, and the centering component 208 in the working chamber 202 is adjusted. The mounting groove 702 on the battery aluminum shell 701 is positioned by the centering component 208, so that the centering component 208 is coaxial with the mounting groove 702, thereby positioning the battery aluminum shell 701 in the horizontal and vertical directions, and then completing the battery aluminum shell 701. After positioning in a three-dimensional orthogonal coordinate system, the shift slide 101 moves the positioned battery aluminum shell 701 to the bottom of the molten groove punch 106. The molten groove punch 106 punches the top edge of the mounting groove 702 to form a receiving molten groove 704. After punching, the shift slide 101 is reset first. After the battery explosion-proof valve 703 is installed in the mounting groove 702, the battery explosion-proof valve 703 is limited by the centering component 208. Then, the battery aluminum shell 701 is moved to the laser welder 107. Directly below, the laser welder 107 welds the battery explosion-proof valve 703 and the battery aluminum shell 701 together along the edge of the mounting groove 702, and the centering component 208 is used to prevent the battery explosion-proof valve 703 from being offset due to the adhesion during welding. The receiving molten metal in the welding process is received by the receiving molten groove 704, and the curvature of the top of the molten metal is reduced, so that the surface of the welding joint remains flat and the flatness is improved. Then the shift slide 101 is reset to complete the welding of the explosion-proof valve and replace the aluminum shell.

[0046] The first screw rod 203 and the second screw rod 204 are respectively installed in the working chamber 202. The first screw rod 203 and the second screw rod 204 are both bidirectional screw rods. The second screw rod 204 is located above the first screw rod 203, and the centering assembly 208 is installed on the second screw rod 204. The first support block 205 is threadedly sleeved on both sides of the first screw rod 203. The second support block 206 is rotatably sleeved on both sides of the second screw rod 204. The second support block 206 is slidably connected to the inner wall of the working chamber 202, and the first support block 205 and the second support block 206 are hinged together. A first inclined rod 207 is connected, a centering slot 209 is provided at the top center of the support vertical plate 201, one end of the first screw rod 203 is fixedly connected to a transmission shaft 210, one end of the transmission shaft 210 is fixedly connected to a first knob 211, the transmission shaft 210 penetrates the support vertical plate 201 and is rotatably connected thereto, a first slot 212 is penetrated through the middle of one end of the support vertical plate 201, a first slider 213 is slidably connected in the first slot 212, one end of the second screw rod 204 penetrates the first slider 213, and a second knob 214 is installed at the end of the second screw rod 204;

[0047] When this embodiment is working, when the battery aluminum shell 701 is positioned horizontally and vertically by the centering component 208, the first knob 211 is first rotated to drive the first screw 203 to rotate through the transmission shaft 210, and then the two first support blocks 205 are synchronously moved to make the first inclined rod 207 change from inclined to vertical, thereby lifting the second support block 206 and the second screw 204, and the centering component 208 is passed through the centering slot 209, so that the centering component 208 is docked with the mounting slot 702 of the battery aluminum shell 701, and then the second knob 214 is rotated to drive the centering component 208 through the second screw 204 to center and horizontally and vertically position the battery aluminum shell 701.

[0048] The upper and lower sides of the positioning side plate 301 are symmetrically provided with second slide grooves 302, and the second slide grooves 302 correspond to the positioning frame 306 one by one. A positioning block 303 is installed in the middle of the second slide groove 302, and first springs 304 are installed on both sides of the positioning block 303. A second slider 305 is installed at the end of the first spring 304. The second slider 305 is slidably connected to the second slide groove 302, and a second oblique rod 307 is hingedly installed between the second slider 305 and the positioning frame 306;

[0049] A third slide groove 308 is provided on both upper and lower sides of both ends of the supporting vertical plate 201, a third slider 309 is slidably connected in the third slide groove 308, a second spring 311 is installed between one end of the third slider 309 and the groove wall of the third slide groove 308, and a third oblique rod 310 is hingedly installed between the third slider 309 and the side of the positioning side plate 301;

[0050] When this embodiment is working, the battery aluminum shell 701 is installed on the supporting vertical plate 201 through the third inclined rod 310 and the positioning frame 306. During the guidance, the second inclined rod 307 pushes the second slider 305 to compress the first spring 304 to generate elastic force as a reaction force, thereby pushing the positioning frame 306 in reverse, and the battery aluminum shell 701 is positioned and adjusted in the vertical direction. The third inclined rod 310 pushes the third slider 309 to compress the second spring 311 to generate elastic force, thereby pushing the positioning side plate 301 in reverse, and the battery aluminum shell 701 is positioned and adjusted in the horizontal direction.

[0051] An air intake piston 403 is movably installed in the air intake pipe 402, and the air intake piston 403 maintains contact and sealing with the air intake pipe 402. The air intake piston 403 is fixedly connected to an air intake transmission rod 404, which penetrates one end of the air intake pipe 402, and the air intake transmission rod 404 is fixedly connected to a transmission slider 405, which is slidably connected to the air intake slide 401, and an air intake screw 406 is rotatably connected in the air intake slide 401, and the air intake screw 406 threadably penetrates the transmission slider 405, and one end of the air intake screw 406 penetrates the support vertical plate 201 and is rotatably connected thereto, and a third knob 407 is installed at the end of the air intake screw 406, and an air guide pipe 408 is buried in the support vertical plate 201, and the air guide pipe 408 is connected to the air intake pipe 402;

[0052] When the present embodiment is working, after the battery explosion-proof valve 703 is placed, the centering component 208 forms a contact seal with the battery explosion-proof valve 703, and then the third knob 407 is turned to move the transmission slider 405 through the suction screw 406, and then the suction piston 403 is moved through the suction transmission rod 404 to reduce the air pressure in the air guide tube 408, thereby forming a low pressure in the centering component 208, thereby adsorbing and limiting the battery explosion-proof valve 703, and utilizing the stability of the centering component 208 itself to maintain the stability of the battery explosion-proof valve 703, thereby improving the flatness of the weld surface.

[0053] The centering assembly 208 includes a centering slider 501, which is provided with two symmetrical threads sleeved on the corresponding threads of the second screw rod 204, and the centering slider 501 is slidably connected to the inner wall of the working chamber 202. A crimping support block 502 is installed on the centering slider 501, and a centering top block 503 is fixedly connected to the middle of the upper surface of the crimping support block 502. A support cushion block 504 is clamped and installed between the two crimping support blocks 502. The upper surface of the support cushion block 504 is flush with the upper surface of the crimping support block 502 and has the same width. A plurality of air intake holes 505 are opened on the upper surface of the centering top block 503. A shunt pipe 506 is buried in the crimping support block 502, and the shunt pipe 506 is connected to the corresponding air intake hole 505. The shunt pipe 506 is connected to a first hose 507, and the two first hoses 507 are connected to the air guide pipe 408 through a second hose 508;

[0054] When this embodiment is working, the two centering sliders 501 are first pushed symmetrically and brought together by the thread of the second screw 204, and then lifted by the first screw 203, passing through the middle of the centering slide groove 209 until the upper surface of the crimping support block 502 abuts against the inner wall of the top of the battery aluminum shell 701, and then the second screw 204 is rotated to separate the centering slider 501, and the crimping support block 502 is pushed to both sides synchronously until the two centering top blocks 503 abut against the end side of the mounting groove 702, thereby completing the centering of the battery aluminum shell 701, so that the axis of the mounting groove 702 is aligned with the molten groove. The punch 106 and the laser welder 107 are located in the same vertical plane, and then the centering component 208 is lowered. After the receiving molten groove 704 is punched, the battery explosion-proof valve 703 is placed in the installation groove 702, and then the centering component 208 is lifted until the upper surface of the centering top block 503 abuts against the battery explosion-proof valve 703, and then the pressure is reduced by suction through the suction pipe 402, so that the suction through hole 505 adsorbs the battery explosion-proof valve 703 and limits it. When the shift slide 101 is reset, the suction pipe 402 is reset, the air pressure is restored, and the crimping support block 502 and the battery explosion-proof valve 703 are separated to complete the overall operation.

[0055] The support plate 102 is provided with a limit assembly 104 on both sides of the positioning assembly 103. The limit assembly 104 includes a horizontal push rod 601. The top push end of the horizontal push rod 601 is installed with an L-shaped slide 602. The horizontal section of the L-shaped slide 602 is slidably connected with the horizontal push rod 601 to maintain horizontality. The end surface of the L-shaped slide 602 is provided with a side limit block 604. A plurality of spring rods 603 evenly distributed in a rectangular array are provided between the side limit block 604 and the L-shaped slide 602. A shock-absorbing cushion 605 is installed on the side of the block 604, a vertical push rod 606 is installed on the top of the L-shaped slide 602, a support sleeve 607 is installed on the top push end of the vertical push rod 606, the support sleeve 607 is horizontally arranged, a limited pressure plate 608 is spliced ​​and installed in the support sleeve 607, and a limited pressure block 609 is spliced ​​and installed on the end of the limited pressure plate 608, and a melt slot punch head 610 is spliced ​​and installed on the punching end of the melt slot punch 106, and the melt slot punch head 610 corresponds to the installation slot 702;

[0056] When this embodiment is working, after the battery aluminum shell 701 is positioned, the horizontal push rod 601 pushes the L-shaped slide 602, so that the shock-absorbing pad 605 clamps the two sides of the battery aluminum shell 701, and the shock-absorbing pad 605 and the spring rod 603 reduce the damage to the side wall of the battery aluminum shell 701, and maintain a uniform limiting pressure, then select the corresponding limiting pressure block 609 according to the shape and size of the installation groove 702, and adjust the length of the limiting pressure plate 608 extending out of the supporting sleeve 607, so that the opposite side of the limiting pressure block 609 is aligned with the edge of the receiving molten groove 704 when the shock-absorbing pad 605 clamps the battery aluminum shell 701, and then the vertical push rod 606 moves the limiting pressure block 609 downward, so that the limiting pressure block 609 is just in contact with the battery aluminum shell 701 while maintaining a distance from the receiving molten groove 704, thereby avoiding vibration of the receiving molten groove 704 when receiving the molten metal, thereby improving the surface flatness of the weld.

[0057] When the present invention is in use, the staff installs the battery aluminum shell 701 through the positioning component 103, and then the shift slide 101 moves the positioned battery aluminum shell 701 to the bottom of the molten groove punch 106. The molten groove punch 106 punches the top edge of the installation groove 702 to form a receiving molten groove 704. After punching, the shift slide 101 is reset first, and after the battery explosion-proof valve 703 is installed in the installation groove 702, the battery explosion-proof valve 703 is limited by the centering component 208, and then the battery aluminum shell 701 is shifted. Move to the bottom of the laser welder 107, the laser welder 107 welds the battery explosion-proof valve 703 and the battery aluminum shell 701 together along the edge of the installation groove 702, and receives the molten metal in the welding process through the receiving molten groove 704, and reduces the curvature of the top of the molten metal, so that the surface of the weld joint remains flat, and the centering component 208 is used to prevent the battery explosion-proof valve 703 from being deviated due to the adhesion during welding, further improve the surface flatness of the weld, and make the welds tightly connected and evenly distributed;

[0058] During operation, the battery aluminum shell 701 is positioned horizontally by pushing the positioning side plates 301 toward both sides, and the battery aluminum shell 701 is positioned vertically by pushing the positioning frame 306, and the battery aluminum shell 701 is positioned horizontally and vertically by the centering assembly 208, thereby completing the positioning of the battery aluminum shell 701 in a three-dimensional orthogonal coordinate system, and making the groove center of the mounting groove 702 coplanar with the molten groove punching head 610 and the welding head of the laser welder 107, and accurately positioning the mounting groove 702 to facilitate accurate stamping and forming of the molten groove 704, and further making the molten metal in the welding process evenly distributed and the surface flat, thereby improving the overall flatness;

[0059] During operation, the second inclined rod 307 pushes the second slider 305 to compress the first spring 304 to generate elastic force as a reaction force, thereby pushing the positioning frame 306 back to adjust the battery aluminum shell 701 in the vertical direction, and the third inclined rod 310 pushes the third slider 309 to compress the second spring 311 to generate elastic force, thereby pushing the positioning side plate 301 back to adjust the battery aluminum shell 701 in the horizontal direction, and the threaded push of the second screw 204 makes the two centering sliders 501 symmetrical and gathered together, and then the first screw 203 is lifted and passes through the middle of the centering slot 209 until the upper surface of the crimping support block 502 is pressed against the top of the battery aluminum shell 701 The inner walls are abutted, and then the second screw 204 is rotated to separate the centering slider 501, and the crimping support block 502 is pushed to both sides synchronously until the two centering top blocks 503 are abutted against the end sides of the mounting groove 702, thereby completing the centering of the battery aluminum shell 701, so that the axis of the mounting groove 702 is located in the same vertical plane as the molten groove punch 106 and the laser welder 107, accurately positioning the battery aluminum shell 701 of various specifications in three axes, and further accurately positioning the mounting groove 702 and the battery explosion-proof valve 703, so that the final weld width is uniform, the weld surface is flat, and the battery explosion-proof valve 703 is densely connected to the groove wall of the mounting groove 702;

[0060] During operation, the centering component 208 is lowered, and after the receiving molten groove 704 is punched, the battery explosion-proof valve 703 is placed in the installation groove 702, and then the centering component 208 is lifted until the upper surface of the centering top block 503 abuts against the battery explosion-proof valve 703, and then the third knob 407 is turned to move the transmission slider 405 through the suction screw 406, and then the suction piston 403 is moved through the suction transmission rod 404 to reduce the air pressure in the air guide tube 408, so that low pressure is formed in the centering component 208, so that the suction through hole 505 adsorbs the battery explosion-proof valve 703 and limits it, and the stability of the battery explosion-proof valve 703 is maintained by the stability of the centering component 208 itself, thereby improving the flatness of the weld surface by improving the stability.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding tool for an aluminum shell explosion-proof valve, characterized in that: The invention comprises a shift slide (101), a supporting plate (102) is installed at the sliding end of the shift slide (101), a positioning assembly (103) is arranged on the supporting plate (102), working brackets (105) are arranged on the outer sides of both ends of the shift slide (101), a molten groove punch (106) is arranged on one of the working brackets (105), and a laser welder (107) is arranged on the other working bracket (105), and the positioning assembly (103) comprises a supporting vertical plate (201 ), positioning side plates (301) are provided on both sides of the supporting vertical plate (201), a working chamber (202) is provided in the middle of the inner side of the supporting vertical plate (201), a centering component (208) is movably installed in the middle of the inner side of the working chamber (202), an air suction chute (401) is provided in the lower inner side of the supporting vertical plate (201), an air suction chute (402) is installed on one side of the air suction chute (401), and two positioning frames (306) are provided on the upper and lower sides of the positioning side plate (301).

2. The aluminum shell explosion-proof valve welding tool according to claim 1 is characterized in that: A first screw rod (203) and a second screw rod (204) are respectively installed in the working chamber (202); the first screw rod (203) and the second screw rod (204) are both bidirectional screw rods; the second screw rod (204) is located above the first screw rod (203), and a centering assembly (208) is installed on the second screw rod (204); first support blocks (205) are threadedly sleeved on both sides of the first screw rod (203); second support blocks (206) are rotatably sleeved on both sides of the second screw rod (204), and the second support block (206) is slidably connected to the inner wall of the working chamber (202); a first oblique rod (207) is hingedly connected between the first support block (205) and the second support block (206).

3. The aluminum shell explosion-proof valve welding tool according to claim 2 is characterized in that: A centering groove (209) is provided at the top center of the support vertical plate (201); one end of the first screw rod (203) is fixedly connected to a transmission shaft (210); one end of the transmission shaft (210) is fixedly connected to a first knob (211); the transmission shaft (210) passes through the support vertical plate (201) and is rotatably connected thereto; a first groove (212) is provided through the middle of one end of the support vertical plate (201); a first sliding block (213) is slidably connected in the first groove (212); one end of the second screw rod (204) passes through the first sliding block (213); and a second knob (214) is installed at the end of the second screw rod (204).

4. The aluminum shell explosion-proof valve welding tool according to claim 1 is characterized in that: The upper and lower sides of the positioning side plate (301) are symmetrically provided with second slide grooves (302), the second slide grooves (302) correspond to the positioning frame (306) one by one, a positioning block (303) is installed in the middle of the second slide groove (302), first springs (304) are installed on both sides of the positioning block (303), a second slider (305) is installed at the end of the first spring (304), the second slider (305) is slidably connected to the second slide groove (302), and a second oblique rod (307) is hingedly installed between the second slider (305) and the positioning frame (306).

5. The aluminum shell explosion-proof valve welding tool according to claim 4 is characterized in that: The upper and lower sides of both ends of the supporting vertical plate (201) are provided with a third sliding groove (308), a third sliding block (309) is slidably connected in the third sliding groove (308), a second spring (311) is installed between one end of the third sliding block (309) and the groove wall of the third sliding groove (308), and a third inclined rod (310) is hingedly installed between the third sliding block (309) and the side of the positioning side plate (301).

6. The aluminum shell explosion-proof valve welding tool according to claim 1 is characterized in that: An air intake piston (403) is movably installed in the air intake pipe (402), and the air intake piston (403) maintains a contact seal with the air intake pipe (402). The air intake piston (403) is fixedly connected to an air intake transmission rod (404), and the air intake transmission rod (404) passes through one end of the air intake pipe (402). The air intake transmission rod (404) is fixedly connected to a transmission slider (405), and the transmission slider (405) is slidably connected to the air intake slide groove (401).

7. The aluminum shell explosion-proof valve welding tool according to claim 6 is characterized in that: An air suction screw (406) is rotatably connected in the air suction chute (401), and the air suction screw (406) threadably penetrates the transmission slider (405). One end of the air suction screw (406) penetrates the support vertical plate (201) and is rotatably connected thereto. A third knob (407) is installed at the end of the air suction screw (406). An air guide pipe (408) is buried in the support vertical plate (201), and the air guide pipe (408) is connected to the air suction pipe (402).

8. The aluminum shell explosion-proof valve welding tool according to claim 7 is characterized in that: The centering assembly (208) comprises a centering slider (501), the centering slider (501) is provided with two symmetrical threads sleeved on the corresponding threads of the second screw rod (204), a crimping support block (502) is installed on the centering slider (501), a centering top block (503) is fixedly connected to the middle of the upper surface of the crimping support block (502), a plurality of air intake holes (505) are opened on the upper surface of the centering top block (503), a shunt pipe (506) is buried in the crimping support block (502), the shunt pipe (506) is connected to the corresponding air intake holes (505), the shunt pipe (506) is connected to a first hose (507), and the two first hoses (507) are both connected to the air guide pipe (408) through the second hose (508).

9. The aluminum shell explosion-proof valve welding tool according to claim 8, characterized in that: The centering slider (501) is slidably connected to the inner wall of the working chamber (202), and a support pad (504) is clamped and installed between the two crimping support blocks (502). The upper surface of the support pad (504) is flush with the upper surface of the crimping support block (502) and has the same width.

10. The aluminum shell explosion-proof valve welding tool according to claim 1, characterized in that: The support plate (102) is provided with a limit assembly (104) on both sides of the positioning assembly (103), and the limit assembly (104) includes a horizontal push rod (601), and an L-shaped slide (602) is installed at the top pushing end of the horizontal push rod (601), and the horizontal section of the L-shaped slide (602) is slidably connected to the horizontal push rod (601) to maintain horizontality, and a side limit block (604) is provided on the end surface of the L-shaped slide (602), and a plurality of elastic springs evenly distributed in a rectangular array are provided between the side limit block (604) and the L-shaped slide (602). The spring rod (603) and the side limit block (604) are equipped with a shock-absorbing cushion (605). A vertical push rod (606) is installed on the top of the L-shaped slide (602). A support sleeve (607) is installed on the top pushing end of the vertical push rod (606). The support sleeve (607) is arranged horizontally. A limit pressure plate (608) is spliced ​​and installed in the support sleeve (607). A limit pressure block (609) is spliced ​​and installed on the end of the limit pressure plate (608). A melt groove punch head (610) is spliced ​​and installed on the punching end of the melt groove punch (106).

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