A welding device for lithium battery plates of electric vehicles

Abstract

The invention discloses a lithium battery plate welding device for an electric vehicle, which relates to the technical field of lithium battery welding, and comprises a workbench, a transmission component, a transmission turntable and a welding mechanism. The transmission component is composed of a plurality of clamping plate mechanisms, and the battery is clamped by the clamping plate mechanisms, and the metal parts are aligned with the battery electrodes, and the clamping plate mechanisms are transported by the transmission turntable, so as to form a transmission chain and improve production efficiency. A flexible protrusion is arranged in the transmission channel, and the clamping plate mechanism is firmly clamped under the welding mechanism to ensure accurate welding. The clamping plate mechanism is composed of a clamping plate 1 and a clamping plate 2 and is rotatably connected by turntables 1 and 2. Elastic blocks 1 and 2 are arranged in the clamping plate 1 and the clamping plate 2, and the battery can be firmly clamped by the rotation of turntables 1 and 2 during the transmission process, and the battery can be effectively pushed out when the clamping plate mechanism is transmitted to the arc surface of the transmission channel, so that it is convenient for manual replacement of the battery, and its convenience is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery welding, in particular to a welding device for lithium battery plates of an electric vehicle. Background Art

[0002] Electric vehicles are vehicles that use onboard power as a power source, use motors to drive wheels, and comply with various requirements of road traffic and safety regulations. The rise of electric vehicles is an important direction for the development of the automotive industry, and is also an important measure to address global climate change and achieve green and low-carbon development.

[0003] At present, electric vehicles generally use rechargeable batteries as their power source. Among them, lithium batteries are widely used in electric vehicles due to their high safety and long cycle life. Generally, a plurality of single lithium batteries are used to form a lithium battery pack to provide strong power for electric vehicles. In the production of lithium batteries, the welding of lithium battery plates is a key step in the manufacture of lithium batteries. In the prior art, the welding of lithium batteries mainly relies on manual welding. Generally, workers place two metal parts between electrodes, apply high current through a welding gun to instantly heat them and press them together to form a connection. This method cannot ensure that the metal parts are accurately pressed on the electrodes, and misalignment is prone to occur, and its welding efficiency is low.

[0004] Therefore, it is necessary to provide a lithium battery plate welding device for electric vehicles to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a welding device for lithium battery plates of electric vehicles, comprising a workbench, a transmission component, a transmission turntable and a welding mechanism, wherein a transmission channel is provided on the workbench, the transmission component is slidably arranged in the transmission channel and driven by the transmission turntable, a bracket is provided on the workbench, a cylinder component is fixedly arranged on the bracket, and the welding mechanism is slidably arranged on the bracket through the cylinder component;

[0006] The transmission assembly is composed of a plurality of clamping plate mechanisms, and the clamping plate mechanisms include a turntable 1, a turntable 2, and a pull rod, wherein the turntable 1 and the turntable 2 are respectively fixedly arranged at two ends of the pull rod;

[0007] And two adjacent turntables 1 are rotatably connected with turntable 2.

[0008] Preferably, the first turntable is also fixedly provided with a first clamping plate, and the second turntable is also fixedly provided with a second clamping plate;

[0009] The first clamping plate and the second clamping plate are arc-shaped, and the arc-shaped concave surfaces of the two clamping plates are respectively provided with the first elastic block and the second elastic block.

[0010] Preferably, a tooth groove is provided on the pull rod;

[0011] The transmission turntables are configured in two, and two guide rods are symmetrically arranged on the outside thereof, and the two transmission turntables are staggered and synchronously driven by a motor;

[0012] The guide rod can be slidably inserted into the tooth socket and drive the clamping plate mechanism to slide along the transmission channel.

[0013] Preferably, the first clamping plate and the second clamping plate are further provided with grooves;

[0014] The transmission channel is provided with a T-shaped slot, a T-shaped slide bar is slidably arranged in the slot, an arc-shaped clamping ring is fixedly arranged on the slide bar, and the clamping ring is rotatably clamped in the groove.

[0015] Preferably, four flexible protrusions are symmetrically arranged on the transmission channel and are located below the welding mechanism, and a spring is arranged between the protrusions and the transmission channel.

[0016] Preferably, the workbench is further provided with a through hole, the through hole being located below the welding mechanism, and a push ring mechanism is slidably arranged inside the through hole;

[0017] The push ring mechanism includes a push ring and a push rod, wherein the push rod is slidably arranged in the through hole, and a second spring is arranged between the push rod and the through hole, and the push ring is slidably arranged on the push rod, and a third spring is arranged between the push rod and the push ring.

[0018] Preferably, the welding mechanism comprises a base, a welding gun and a push block, wherein the base is connected to the cylinder assembly, the welding gun is fixedly arranged on the base, and a push block is fixedly arranged on the outer side of the welding gun;

[0019] And the push block can push the push rod to slide along the through hole.

[0020] Compared with the prior art, the present invention provides a welding device for lithium battery plates of electric vehicles, which has the following beneficial effects:

[0021] In the present invention, a transmission component is provided to transmit the lithium battery, and the battery is clamped by a clamping plate mechanism, the metal part is aligned with the battery electrode, and the metal part and the battery plate are effectively prevented from being misaligned, and the clamping plate mechanism is provided in multiple forms, which are transported by a transmission turntable to form a transmission chain, thereby greatly improving the production efficiency. In addition, a flexible protrusion is provided in the transmission channel, which can firmly clamp the clamping plate mechanism under the welding mechanism to ensure accurate welding, and a push ring mechanism is provided under the welding mechanism, which can effectively press the metal part on the electrode to further improve its welding effect, and the clamping plate mechanism is composed of an arc-shaped clamping plate 1 and a clamping plate 2, which are rotatably connected by turntable 1 and turntable 2, and an arc-shaped elastic block 1 and an elastic block 2 are provided in the clamping plate 1 and the clamping plate 2, which can firmly clamp the battery by the rotation of the turntable 1 and the turntable 2 during the transmission process, and when the clamping plate mechanism is transmitted to the arc surface of the transmission channel, the battery is effectively pushed out, which is convenient for manual replacement of the battery, and further makes the welding work more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the transmission component in the present invention;

[0024] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0026] Figure 5 for Figure 2 The enlarged structural diagram at C in the middle;

[0027] In the figure: 1. workbench; 11. transmission channel; 111. slot; 112. slide bar; 113. snap ring; 12. bracket; 13. cylinder assembly; 14. bump; 15. push ring mechanism; 151. push ring; 152. push rod; 2. transmission assembly; 21. turntable 1; 211. clamping plate 1; 22. turntable 2; 221. clamping plate 2; 23. pull rod; 231. tooth groove; 24. groove; 3. transmission turntable; 31. guide rod; 32. motor; 4. welding mechanism; 41. base; 42. welding gun; 43. push block. DETAILED DESCRIPTION

[0028] See also Figure 1 to Figure 5In an embodiment of the present invention, a lithium battery plate welding device for an electric vehicle includes a workbench 1, a transmission component 2, a transmission turntable 3, and a welding mechanism 4, wherein a transmission channel 11 is provided on the workbench 1, the transmission component 2 is slidably arranged in the transmission channel 11, and is driven by the transmission turntable 3, a bracket 12 is provided on the workbench 1, a cylinder component 13 is fixedly arranged on the bracket 12, and the welding mechanism 4 is slidably arranged on the bracket 12 through the cylinder component 13;

[0029] The transmission assembly 2 is composed of a plurality of clamping plate mechanisms, and the clamping plate mechanisms include a turntable 1 21, a turntable 22, and a pull rod 23, wherein the turntable 1 21 and the turntable 2 22 are fixedly arranged at two ends of the pull rod 23 respectively;

[0030] The two adjacent turntables 1 21 and 22 are rotatably connected.

[0031] During implementation, the battery and metal parts are placed in the clamping plate mechanism and clamped by clamping plate 1 211 and clamping plate 2 221, and then the transmission turntable 3 is used for transmission. When the clamping plate mechanism is transported to the bottom of the welding mechanism 4, the turntable 1 21 and the turntable 2 22 are firmly stuck in the transmission channel 11 under the action of the protrusion 14, and then the welding mechanism 4 is pushed downward by the cylinder assembly 13, and the metal parts are welded to the battery electrode by the welding gun 42. Before welding, the push block 43 is used to push the push ring mechanism 15 to press the metal parts on the battery to further improve its welding effect. After welding is completed, the transmission turntable 3 is used to transmit it to the arc channel of the transmission channel 11. The turntable 1 21 and the turntable 2 22 rotate under the action of tension, so that the clamping plate 1 211 and the clamping plate 2 221 are close to each other, and the battery is pushed out by the elastic block 1 and the elastic block 2, so that it is convenient to replace it manually, further improving its convenience.

[0032] In this embodiment, Figure 1 The turntable 1 21 is also fixedly provided with a clamping plate 1 211, and the turntable 2 22 is fixedly provided with a clamping plate 221;

[0033] The first clamping plate 211 and the second clamping plate 221 are arc-shaped, and the arc-shaped concave surfaces of the two clamping plates are respectively provided with a first elastic block and a second elastic block.

[0034] During implementation, two adjacent clamping plate mechanisms clamp the battery and metal parts through the rotation connection of the turntable 1 21 and the turntable 2 22 and the clamping plate 1 211 and the clamping plate 2 221. When the clamping plate mechanism is transmitted to the arc channel of the transmission channel, the turntable 1 21 and the turntable 2 22 rotate under the pulling force of the pull rod 23, which drives the clamping plate 1 211 and the clamping plate 2 221 to move closer to each other, so that the elastic block 1 and the elastic block 2 push the welded battery outward, which is convenient for people. The worker replaces the battery to improve its convenience, and then places a new battery that needs to be welded. The clamping plate mechanism is transmitted to the straight channel of the transmission channel 11 under the action of the transmission turntable 3. During this process, the turntable 1 21 and the turntable 2 22 rotate under the action of the pull rod 23, and drive the clamping plate 1 211 and the clamping plate 2 221 to rotate to both sides again, so that the elastic block 1 and the elastic block 2 firmly clamp the new battery to ensure that it will not deviate and cause inaccurate welding.

[0035] In this embodiment, Figure 2 , Figure 4 and Figure 5 , a tooth groove 231 is formed on the pull rod 23;

[0036] The transmission turntables 3 are configured in two, and two guide rods 31 are symmetrically arranged on the outside thereof, and the two transmission turntables 3 are staggered and synchronously driven by a motor 32;

[0037] The guide rod 31 can be slidably inserted into the tooth groove 231 and drive the clamping plate mechanism to slide along the transmission channel 11 .

[0038] In particular, two transmission turntables 3 are provided, and they are staggered and synchronously arranged, so that when one of the transmission turntables 3 is transmitting the clamping mechanism, the other will not transmit the clamping mechanism, and the transmission ratio of the transmission turntable 3 to the tooth socket 231 is 8:1, that is, the transmission turntable 3 rotates 1 / 8, and the clamping mechanism moves a distance equal to its length. When the transmission turntable 3 is synchronously driven by the motor 32, it uses the guide rod 31 to transmit the clamping mechanism, and the transmission turntable 3 rotates one circle and only transmits the clamping mechanism twice. The two transmission turntables 3 work together to transmit the clamping mechanism once every 1 / 4 rotation, thereby realizing intermittent transmission of the clamping mechanism, providing welding time for the welding mechanism 4, and further improving its degree of automation.

[0039] In this embodiment, the first clamping plate 211 and the second clamping plate 221 are further provided with a groove 24;

[0040] The transmission channel 11 is provided with a T-shaped slot 111 , in which a T-shaped slide bar 112 is slidably disposed, and an arc-shaped snap ring 113 is fixedly disposed on the slide bar 112 , and the snap ring 113 is rotatably clamped in the groove 24 .

[0041] In particular, the retaining ring 113 is provided to further limit the connection of the clamping mechanism, so that the clamping mechanism remains stable when being transmitted in the transmission channel 11, effectively preventing the battery from being offset during the transmission process and causing inaccurate welding. In addition, the clamping plate 1 211 and the clamping plate 2 221 are provided with a groove 24, so that the retaining ring 113 can rotate along the groove 24, further ensuring that when the clamping mechanism is transmitted to the arc channel of the transmission channel 11, its limiting effect will not be affected by the rotation of the clamping plate 1 211 and the clamping plate 2 221.

[0042] In this embodiment, four flexible protrusions 14 are symmetrically arranged on the transmission channel 11 and are located below the welding mechanism 4 . A spring is arranged between the protrusion 14 and the transmission channel 11 .

[0043] During implementation, when the clamping mechanism is transferred to the bottom of the welding mechanism 4, the connection between two adjacent clamping mechanisms is accurately clamped under the welding mechanism 4 through four protrusions 14, that is, the turntable 21 is clamped in the middle of the four protrusions 14 to ensure that the welding mechanism 4 is aligned with the battery to prevent welding deviation.

[0044] In this embodiment, Figure 3 The workbench 1 is also provided with a through hole, which is located below the welding mechanism 4, and a push ring mechanism 15 is slidably arranged inside the through hole;

[0045] The push ring mechanism 15 includes a push ring 151 and a push rod 152, wherein the push rod 152 is slidably disposed in the through hole, and a second spring is disposed between the push rod 152 and the through hole, and the push ring 151 is slidably disposed on the push rod 152, and a third spring is disposed between the push rod 152 and the push ring 151.

[0046] In this embodiment, the welding mechanism 4 includes a base 41, a welding gun 42 and a push block 43, wherein the base 41 is connected to the cylinder assembly 13, the welding gun 42 is fixedly arranged on the base 41, and a push block 43 is fixedly arranged on the outer side of the welding gun 42;

[0047] Furthermore, the push block 43 can push the push rod 152 to slide along the through hole.

[0048] During implementation, the base 41 moves downward under the action of the cylinder assembly 13. During this process, the push block 43 can preferentially contact the push rod 152 and push the push rod 152 to slide downward. The sliding of the push rod 152 can drive the push ring 151 to slide, and it preferentially contacts the metal part and presses the metal part onto the battery under the action of spring three. Then the welding gun 42 contacts the metal part and welds it to the battery electrode, further improving its welding effect, that is, realizing the working state of pressing first and then welding, and preventing the occurrence of welding offset.

[0049] To sum up, when the present invention is implemented, the battery and the metal parts are clamped by the clamping mechanism, and they are transmitted by the transmission turntable 3. Then, the metal parts are welded by the welding mechanism 4. Before welding, the metal parts are pressed by the push ring mechanism 15, and the transmission turntable 3 is staggered and synchronously set to two, so that it can intermittently transmit the clamping mechanism, which is convenient for the welding mechanism 4 to perform welding. Four protrusions 14 are set in the transmission channel 11, so that the clamping mechanism can be firmly stuck in the transmission channel 11, so that the battery is aligned with the welding mechanism 4, and elastic blocks 1 and 2 are set in clamp plate 1 211 and clamp plate 2 221. Through the rotation of turntable 1 21 and turntable 2 22, it can be in two working states of clamping or pushing the battery, further improving its convenience.

[0050] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for lithium battery plates of electric vehicles, characterized in that: The invention comprises a workbench (1), a transmission component (2), a transmission turntable (3) and a welding mechanism (4), wherein the workbench (1) is provided with a transmission channel (11), the transmission component (2) is slidably arranged in the transmission channel (11) and driven by the transmission turntable (3), the workbench (1) is provided with a bracket (12), a cylinder component (13) is fixedly arranged on the bracket (12), and the welding mechanism (4) is slidably arranged on the bracket (12) via the cylinder component (13); The transmission assembly (2) is composed of a plurality of clamping plate mechanisms, wherein the clamping plate mechanisms include a first turntable (21), a second turntable (22) and a pull rod (23), wherein the first turntable (21) and the second turntable (22) are respectively fixedly arranged at two ends of the pull rod (23); The two adjacent turntables 1 (21) and 2 (22) are rotatably connected; The first turntable (21) is also fixedly provided with a first clamping plate (211), and the second turntable (22) is fixedly provided with a second clamping plate (221); The first clamping plate (211) and the second clamping plate (221) are arc-shaped, and the arc-shaped concave surfaces of the two clamping plates are respectively provided with an elastic block first and an elastic block second for pushing out the battery; The first clamping plate (211) and the second clamping plate (221) are also provided with grooves (24); The transmission channel (11) is provided with a T-shaped slot (111), a T-shaped slide bar (112) is slidably arranged in the slot (111), an arc-shaped snap ring (113) is fixedly arranged on the slide bar (112), and the snap ring (113) is rotatably clamped in the groove (24); The pull rod (23) is provided with a tooth groove (231); The transmission turntables (3) are configured in two, and two guide rods (31) are symmetrically arranged on the outside thereof. The two transmission turntables (3) are arranged alternately, and the two are synchronously driven by a motor (32); The guide rod (31) can be slidably inserted into the tooth socket (231) and drive the clamping plate mechanism to slide along the transmission channel (11); Four flexible protrusions (14) are also symmetrically arranged on the transmission channel (11), and are located below the welding mechanism (4); a spring is arranged between the protrusion (14) and the transmission channel (11).

2. The electric vehicle lithium battery plate welding device according to claim 1, characterized in that: The workbench (1) is also provided with a through hole, the through hole being located below the welding mechanism (4), and a push ring mechanism (15) is slidably arranged inside the through hole; The push ring mechanism (15) comprises a push ring (151) and a push rod (152), wherein the push rod (152) is slidably arranged in the through hole, and a second spring is arranged between the push rod (152) and the through hole, and the push ring (151) is slidably arranged on the push rod (152), and a third spring is arranged between the push rod (152) and the push ring (151).

3. The electric vehicle lithium battery plate welding device according to claim 2, characterized in that: The welding mechanism (4) comprises a base (41), a welding gun (42) and a push block (43), wherein the base (41) is connected to the cylinder assembly (13), the welding gun (42) is fixedly arranged on the base (41), and a push block (43) is fixedly arranged on the outside of the welding gun (42); Furthermore, the push block (43) can push the push rod (152) to slide along the through hole.

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