Battery terminal automatic welding device

Abstract

The present application provides an automatic welding device for battery terminals, belonging to the field of welding technology, comprising a clamping mechanism for clamping the terminal on the battery, a clamping and positioning mechanism for adjusting the position of the battery and clamping the battery, and a moving mechanism for synchronously moving the support block when the position of the battery is adjusted; the clamping mechanism comprises a mounting block slidably connected to a frame, a support block is arranged on the mounting block, a pressure plate is arranged under the support block, a guide rod is connected to the pressure plate, the guide rod is slidably connected to the support block, a first return spring is sleeved on the guide rod between the pressure plate and the support block, and a first linear drive is installed on the mounting block; the clamping and positioning mechanism comprises a pair of clamping blocks, a driving assembly is arranged on the mounting block, and the driving assembly is used to drive the clamping blocks to move toward each other; the present application can keep the position of the terminal on the battery unchanged during the positioning process of the battery, thereby ensuring the positioning effect of the terminal and being beneficial to improving the welding effect.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to an automatic welding device for battery terminals. Background Art

[0002] Battery terminals are metal connectors or interfaces on a battery used to connect a power source to a load. They are usually the main electrical connection points of a battery and are responsible for transferring the electrical energy stored inside the battery to an external circuit. During the battery production process, the terminals usually need to be welded to the lead columns of the battery.

[0003] Referring to the Chinese patent document with announcement number CN209140051U, entitled A Battery Terminal Welding Device, in the patent, after the battery terminals are placed, the battery enters from the input end of the conveyor belt. During transportation, the trumpet-shaped limit baffle is first adjusted to limit the vertical conveying direction of the conveyor belt. The battery continues to be transported until the photoelectric sensor detects the battery. The control system receives the signal of the photoelectric sensor and controls the second cylinder to work. The second cylinder extends the piston rod to block the forward movement of the battery, thereby positioning the battery in the conveying direction of the conveyor belt. The third cylinder drives the clamping plate, and the clamping plate cooperates with the limit baffle on the other side of the conveyor belt to clamp and fix the battery, thereby accurately positioning the battery in the vertical conveying direction of the conveyor belt. After the battery position is fixed, the terminal welding part is just below the welding gun. After the first cylinder drives the welding gun to descend to the set position, welding begins. After welding is completed, each mechanism returns to its initial state, and the welded battery is transported downstream.

[0004] Referring to the above technical solution, when the battery terminals need to be welded, the position of the battery placed on the conveyor belt will deviate from the corresponding position of the welding gun. In the process of positioning the battery by a limit plate or clamping the battery by a trumpet-shaped clamp, the battery may collide with the limit plate and vibrate. During the vibration of the battery, the L-shaped terminal may fall over or change its position relative to the battery, which will affect the welding effect. Summary of the invention

[0005] In order to solve the technical problem that the terminal position is changed due to positioning vibration, thereby affecting the welding effect, the present application provides an automatic welding device for battery terminals.

[0006] The present application provides an automatic battery terminal welding device, which adopts the following technical scheme: the automatic battery terminal welding device includes a frame, a conveyor belt conveying along the Y direction, and a welding gun that can move up and down, and also includes: a clamping mechanism, a clamping positioning mechanism and a moving mechanism; the clamping mechanism is arranged on the frame, and the clamping mechanism is used to clamp the terminal on the battery, and the clamping mechanism includes a mounting block corresponding to the welding gun, and the mounting block is slidably connected to the frame along the X direction, and a support block is arranged on the mounting block, and two pressure plates are arranged under the support block, and each pressure plate is fixedly connected to a guide rod, and the guide rod passes through the support block and slides with the support block The guide rod is dynamically connected, and a first return spring is sleeved on the guide rod. The first return spring is located between the pressure plate and the support block. The mounting block is equipped with a first linear driver for driving the mounting block to move up and down; the clamping and positioning mechanism is arranged on the mounting block, and is used to adjust and clamp the battery. The clamping and positioning mechanism includes a clamping block slidably connected to the side of the mounting block close to the conveyor belt. A pair of clamping blocks are arranged, and a driving assembly is arranged on the mounting block. The driving assembly is used to drive the clamping blocks to move toward each other; the moving mechanism is arranged on the mounting block, and the moving mechanism is used to make the support block move synchronously when the clamping block adjusts the position of the battery.

[0007] By adopting the above technical solution, when the terminal needs to be welded on the battery, the battery with the terminal placed is first placed on the conveyor belt, and the conveyor belt transports the battery to the corresponding position of the support block. The support block moves downward under the drive of the first linear drive and drives the pressure plate to move downward. The pressure plate first contacts the terminal, and then the support block continues to move downward, the first return spring is compressed, and the pressure plate presses the terminal against the battery under the action of the elastic force of the first return spring.

[0008] After the pressure plate presses the terminal onto the battery, the clamping block clamps the battery and adjusts the angle and position of the battery under the action of the driving assembly. At the same time, the moving mechanism drives the support block and the pressure plate to move synchronously. Then the mounting block moves toward the conveyor belt and drives the battery, terminal, pressure plate and support block to move synchronously. After that, the battery contacts the frame and is limited.

[0009] In the present application, the terminal is first pressed by a pressure plate, and then the support block and the pressure plate are moved synchronously with the battery when the clamping block adjusts the angle and position of the battery, so that the terminal can always maintain an unchanged relative position with the battery, which changes the existing method in which the clamping block can only position the battery, and can reduce the risk of the terminal tilting or moving on the battery, which is beneficial to improving the welding effect. At the same time, in the present application, the clamping block first adjusts the position of the battery before pushing the battery to abut against the frame, thereby reducing the risk of damage to the battery due to contact with the frame when the battery is skewed, which is beneficial to ensuring the life of the battery.

[0010] Optionally, the driving assembly includes a sliding groove horizontally opened on the side of the mounting block close to the conveyor belt, a pair of clamping blocks are slidably arranged in the sliding groove, a stud bolt is horizontally rotated in the mounting block, the threads at both ends of the stud bolt have opposite rotation directions, and the two ends of the stud bolt are respectively threadedly connected to two clamping blocks, and a rotation source is installed on the mounting block, and the rotation source is used to drive the stud bolt to rotate.

[0011] By adopting the above technical solution, when the clamping block is needed to clamp and position the battery, the rotation source rotates forward to drive the stud bolt to rotate, and the rotation of the stud bolt drives the clamping block to move in a direction close to each other and clamp the battery; when the terminal is welded to the battery, the rotation source rotates reversely to drive the stud bolt to rotate, and the rotation of the stud bolt drives the clamping block to move in a direction away from each other and cancels clamping the battery.

[0012] Optionally, the moving mechanism includes a suction cup arranged under the support block, and the mounting block is provided with an X-direction adjustment component, a Y-direction adjustment component and an angle adjustment component, the X-direction adjustment component is used to move the support block in the X direction when the clamping block drives the battery to move, the Y-direction adjustment component is used to move the support block in the Y direction when the clamping block drives the battery to move, and the angle adjustment component is used to change the angle of the support block when the clamping block drives the battery to move.

[0013] By adopting the above technical solution, when the support block moves downward, the support block drives the suction cup to move downward, and the suction cup is sucked on the battery. Then the clamping block clamps the battery to position it. The battery moves and the stroke can be decomposed into movement in the X direction and Y direction and rotation around its own center. Driven by the suction cup, the pressing action of the pressure plate, and the action of the X-direction adjustment component, the Y-direction adjustment component and the angle adjustment component, the support block can move synchronously driven by the battery.

[0014] By setting the suction cup, when the clamping block pushes the battery to rotate, the suction cup can keep the battery and the support block in a fixed state, so that the support block, the pressure plate and the battery can move synchronously when the battery rotates, which is beneficial to keep the position between the battery and the terminal unchanged and improve the welding effect.

[0015] Optionally, the X-direction adjustment component includes a support frame installed on the mounting block, a sliding block is slidably connected to the support frame, a driving end of the first linear actuator is fixedly connected to the sliding block, a connecting block is arranged above the support block, a connecting rod is fixedly connected to the connecting block, the connecting rod passes through the sliding block and an end portion is fixedly connected to a limiting plate, and a second return spring is arranged between the limiting plate and the sliding block.

[0016] By adopting the above technical solution, when the clamping block clamps and positions the battery, the movement of the battery in the X direction can drive the support block to move in the X direction, the movement of the support block drives the movement of the connecting block, the movement of the connecting block drives the movement of the connecting rod and the limit plate and causes the second return spring to undergo elastic deformation; after the welding of the terminals is completed and the pressure plate is separated from the terminals, the support block can return to its initial position in the X direction under the action of the restoring force of the second return spring.

[0017] Optionally, the Y-direction adjustment component includes a moving block, a placement groove is opened in the connecting block along the Y-axis direction for the moving block to slide horizontally, a third return spring is arranged between the two side walls of the moving block in the Y-axis direction and the side walls of the placement groove, and the bottom of the moving block is connected to the top of the support block by a fixing rod.

[0018] By adopting the above technical solution, when the clamping block clamps the battery in position, the movement of the battery in the Y direction can drive the support block to move synchronously in the Y direction, and the movement of the support block drives the moving block to slide along the placement groove and causes the third reset springs on both sides of the moving block to deform; after the welding of the terminals is completed and the pressure plate is separated from the terminals, the moving block moves under the action of the restoring force of the third reset springs on both sides, and the movement of the moving block drives the fixed rod and the support block to move back to the initial position in the Y direction.

[0019] Optionally, the angle adjustment assembly includes a torsion spring sleeved on the fixed rod, and two ends of the torsion spring are respectively fixedly connected to the moving block and the supporting block, and the fixed rod is rotatably connected to the supporting block.

[0020] By adopting the above technical solution, when the clamping block clamps the battery in position, the rotation of the battery in the angular direction can drive the support block to rotate and cause the torsion spring to deform; after the welding of the terminal is completed and the pressure plate is separated from the terminal, the support block can rotate back to the initial angle under the action of the torsion spring restoring force.

[0021] Optionally, a pair of the clamping blocks are fixedly connected with a baffle on one side facing each other, and the baffle is located on the top of the clamping block.

[0022] By adopting the above technical solution, the baffle can protect the upper surface of the battery when the welding gun is welding the terminal and the battery, reducing the risk of the molten liquid of the welding rod falling on the battery surface and damaging the battery, thereby ensuring the life of the battery.

[0023] Optionally, a guide groove is provided on the upper surface of the baffle.

[0024] By adopting the above technical solution, the setting of the guide groove can guide the movement of the welding wire, making it convenient to align the position of the welding wire with the welding point.

[0025] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0026] 1. In the present application, the terminal is first pressed by a pressure plate, and then the support block and the pressure plate are moved synchronously with the battery when the clamping block adjusts the angle and position of the battery, so that the terminal can always maintain a relative position with the battery unchanged, which changes the existing clamping block that can only position the battery, and can reduce the risk of the terminal tilting or moving on the battery, which is beneficial to improving the welding effect. At the same time, in the present application, the clamping block first adjusts the position of the battery before pushing the battery to abut against the frame, thereby reducing the risk of damage to the battery due to contact with the frame when the battery is skewed, which is beneficial to ensuring the life of the battery.

[0027] 2. By setting the baffle, the upper surface of the battery can be protected when the welding gun is welding the terminal and the battery, reducing the risk of the molten liquid of the welding rod falling on the surface of the battery and damaging the battery, thereby ensuring the life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the structure of the support block and the mounting block in the embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of the structure of the clamping mechanism in the embodiment of the present application;

[0031] Figure 4 It is a schematic diagram of the structure of the angle adjustment component in the embodiment of the present application.

[0032] Explanation of the reference numerals: 1. frame; 11. welding gun; 2. conveyor belt; 3. clamping mechanism; 31. mounting block; 311. sliding groove; 32. support block; 33. guide rod; 34. pressure plate; 35. first return spring; 36. first linear actuator; 4. clamping and positioning mechanism; 41. clamping block; 42. drive assembly; 421. stud bolt; 5. moving mechanism; 51. suction cup; 52. X-direction adjustment assembly; 521. support frame; 522. sliding block; 523. connecting block; 524. connecting rod; 525. limiting plate; 526. second return spring; 53. Y-direction adjustment assembly; 531. moving block; 532. placement groove; 533. third return spring; 534. fixing rod; 54. angle adjustment assembly; 541. torsion spring; 6. baffle; 61. guide groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 4, the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0034] Reference Figure 1 and Figure 2 The automatic battery terminal welding device includes a frame 1, a conveyor belt 2, a welding gun 11, a clamping mechanism 3 and a clamping positioning mechanism 4. The frame 1 is arranged on a horizontal plane, the conveyor belt 2 is horizontally installed on the frame 1 along the Y direction, the conveyor belt 2 is used to convey the battery, and when the battery is placed on the conveyor belt 2, the terminal is located at a suitable welding position on the battery; the welding gun 11 is arranged on the frame 1 and is located above the conveyor belt 2. The welding gun 11 can move up and down and is used to weld the terminal on the battery. The above is the prior art and will not be described in detail.

[0035] Among them, refer to Figure 1 and Figure 2 The clamping mechanism 3 is arranged on the frame 1, and the clamping mechanism 3 is used to clamp the terminal on the battery before welding and positioning the battery; the clamping positioning mechanism 4 is arranged on the frame 1, and the clamping positioning mechanism 4 is used to adjust the position of the battery and to clamp the battery.

[0036] Reference Figure 2 and Figure 3 The clamping mechanism 3 includes a mounting block 31, a support block 32, a pressure plate 34, a guide rod 33, a first return spring 35 and a first linear actuator 36. The mounting block 31 is arranged corresponding to the welding gun 11 and is slidably connected to the frame 1. The mounting block 31 is located on one side of the conveyor belt 2. A second linear actuator is installed on the frame 1. The telescopic end of the second linear actuator is fixedly connected to the side of the mounting block 31 away from the conveyor belt 2. The second linear actuator is used to drive the mounting block 31 to move along the X direction;

[0037] Among them, refer to Figure 3 The support block 32 is disposed on the mounting block 31, two pressing plates 34 are provided and are located below the support block 32, the minimum distance between the two pressing plates 34 is smaller than the minimum distance between the two terminals on the battery, and the maximum distance between the two pressing plates 34 is larger than the maximum distance between the two terminals on the battery;

[0038] Among them, refer to Figure 3There are four guide rods 33 and they are all slidably connected to the support block 32. One end of each guide rod 33 away from the pressure plate 34 is fixedly connected to a limit block. The four guide rods 33 are divided into two groups. Each group of guide rods 33 is fixedly connected to a pressure plate 34. The setting of the guide rods 33 can improve the stability of the pressure plate 34 and reduce the risk of deflection of the pressure plate 34. The same number of first return springs 35 are provided corresponding to the guide rods 33. Each first return spring 35 is sleeved on a guide rod 33 and is located between the support block 32 and the pressure plate 34. The first linear drive 36 is provided on the mounting block 31. The first linear drive 36 is used to drive the support block 32 to move up and down.

[0039] When the terminal needs to be welded on the battery, the support block 32 moves downward under the drive of the first linear drive 36 and drives the pressure plate 34 to move downward, and the pressure plate 34 contacts the terminal. Then the support block 32 continues to move downward, the first return spring 35 is compressed, and the pressure plate 34 presses the terminal against the battery under the action of the elastic force of the first return spring 35.

[0040] Reference Figure 2 and Figure 3 The clamping and positioning mechanism 4 includes a clamping block 41 and a driving assembly 42. A pair of clamping blocks 41 are provided, and the pair of clamping blocks 41 are slidably connected to the side of the mounting block 31 close to the conveyor belt 2. The bottom of the clamping block 41 is higher than the conveyor belt 2 and lower than the top of the battery. The clamping blocks 41 are parallel to each other. The driving assembly 42 is provided on the mounting block 31, and the driving assembly 42 is used to drive the clamping blocks 41 to move toward each other.

[0041] Reference Figure 4 The driving assembly 42 includes a sliding groove 311, a stud bolt 421 and a rotation source. The sliding groove 311 is horizontally opened along the Y direction on the side of the mounting block 31 close to the conveyor belt 2, and a pair of clamping blocks 41 are both slidably set in the sliding groove 311; the stud bolt 421 is rotatably set in the mounting block 31, and the threads at both ends of the stud bolt 421 are in opposite directions, and the two ends of the stud bolt 421 are respectively threadedly connected with the two clamping blocks 41, and the rotation source is installed on the mounting block 31. The driving shaft of the rotation source is fixedly connected with a first gear, and the outer side wall of the middle rod of the stud bolt 421 is fixedly sleeved with a second gear, and the first gear can mesh with the second gear.

[0042] When the clamping block 41 is needed to clamp and position the battery, the rotation source rotates forward to drive the stud bolt 421 to rotate, and the rotation of the stud bolt 421 drives the clamping block 41 to move in a direction close to each other and clamp the battery; when the terminal is welded to the battery, the rotation source rotates reversely to drive the stud bolt 421 to rotate, and the rotation of the stud bolt 421 drives the clamping block 41 to move away from each other and cancel the clamping of the battery.

[0043] Reference Figure 1The battery terminal automatic welding device further comprises a moving mechanism 5. The moving mechanism 5 is arranged on the mounting block 31, and the moving mechanism 5 is used to make the supporting block 32 move synchronously when the clamping block 41 drives the battery to move.

[0044] Reference Figure 3 and Figure 4 The moving mechanism 5 includes a suction cup 51, an X-direction adjustment component 52, a Y-direction adjustment component 53 and an angle adjustment component 54. Two suction cups 51 are provided, and both suction cups 51 are mounted on the support block 32 and are located below the support block 32. The height of the suction cup 51 is higher than the height of the pressure plate 34 when the first return spring 35 is not compressed;

[0045] Among them, refer to Figure 3 The X-direction adjustment component 52, the Y-direction adjustment component 53 and the angle adjustment component 54 are all arranged on the mounting block 31. The X-direction adjustment component 52 is used to move the support block 32 in the X-direction when the clamping block 41 drives the battery to move. The Y-direction adjustment component 53 is used to move the support block 32 in the Y-direction when the clamping block 41 drives the battery to move. The angle adjustment component 54 is used to change the angle of the support block 32 when the clamping block 41 drives the battery to move.

[0046] Reference Figure 3 and Figure 4 The X-direction adjustment assembly 52 includes a support frame 521, a sliding block 522, a connecting block 523, a connecting rod 524, a limit plate 525, and a second return spring 526. The support frame 521 is vertically arranged and fixedly connected to the mounting block 31, the sliding block 522 is slidably connected to the support frame 521, the moving end of the first linear actuator 36 is fixedly connected to the sliding block 522, the connecting block 523 is arranged on the support block 32, three connecting rods 524 are arranged, one end of the three connecting rods 524 is fixedly connected to the connecting block 523, the other ends of the three connecting rods 524 pass through the sliding block 522 and are fixedly connected to the limit plate 525, and the second return spring 526 is arranged between the sliding block 522 and the limit plate 525.

[0047] When the clamping block 41 clamps the battery in position, the movement of the battery in the X direction can drive the support block 32 to move along the X direction, and the movement of the support block 32 drives the connection block 523 to move, and the movement of the connection block 523 drives the connection rod 524 and the limit plate 525 to move and causes the second return spring 526 to elastically deform; after the welding of the terminals is completed and the pressure plate 34 is separated from the terminals, the support block 32 can return to the initial position in the X direction under the action of the restoring force of the second return spring 526.

[0048] Reference Figure 4The Y-direction adjustment assembly 53 includes a moving block 531, a placement slot 532, a third return spring 533 and a fixed rod 534. The connection block 523 is provided with a placement slot 532 horizontally along the Y direction, the moving block 531 is arranged in the placement slot 532 and can slide along the placement slot 532, two third return springs 533 are provided, the two third return springs 533 are respectively arranged on both sides of the moving block 531, and the two ends of each third return spring 533 are respectively fixedly connected to the side wall of the placement slot 532 and the moving block 531, one end of the fixed rod 534 is fixedly connected to the moving block 531, and the end of the fixed rod 534 away from the moving block 531 is rotatably connected to the support block 32.

[0049] When the clamping block 41 clamps the battery in position, the movement of the battery in the Y direction can drive the support block 32 to move synchronously in the Y direction. The movement of the support block 32 drives the moving block 531 to slide along the placement groove 532 and causes the third return springs 533 on both sides of the moving block 531 to deform. After the welding of the terminals is completed and the pressure plate 34 is separated from the terminals, the moving block 531 moves under the action of the restoring force of the third return springs 533 on both sides. The movement of the moving block 531 drives the fixed rod 534 and the support block 32 to move back to the initial position in the Y direction.

[0050] Reference Figure 4 The angle adjustment assembly 54 includes a torsion spring 541 , which is sleeved on the fixing rod 534 , and two ends of the torsion spring 541 are fixedly connected to the moving block 531 and the supporting block 32 , respectively.

[0051] When the clamping block 41 clamps the battery in position, the rotation of the battery in the angular direction can drive the support block 32 to rotate and cause the torsion spring 541 to deform; after the welding of the terminals is completed and the pressure plate 34 is separated from the terminals, the support block 32 can rotate back to the initial angle under the action of the restoring force of the torsion spring 541.

[0052] When the support block 32 moves downward, the support block 32 drives the suction cup 51 to move downward, and the suction cup 51 is sucked on the battery. Then the clamping block 41 clamps the battery in place, and the battery moves and its stroke can be decomposed into movement in the X direction, Y direction and rotation around its own center. Driven by the suction cup 51, the pressing plate 34 and the X-direction adjustment component 52, the Y-direction adjustment component 53 and the angle adjustment component 54, the support block 32 can move synchronously driven by the battery.

[0053] By setting the suction cup 51, when the clamping block 41 pushes the battery to rotate, the suction cup 51 can keep the battery and the support block 32 in a fixed state, so that the support block 32, the pressure plate 34 and the battery can move synchronously when the battery rotates, which is beneficial to keep the position between the battery and the terminal unchanged and improve the welding effect.

[0054] Reference Figure 3 and Figure 4 The battery terminal automatic welding device also includes a baffle 6. The baffle 6 is provided with the same number of corresponding clamping blocks 41, and each baffle 6 is fixedly connected to the opposite side of the clamping block 41, and the baffle 6 is located on the top of the clamping plate. A guide groove 61 is opened above the baffle 6, and the guide groove 61 can allow the welding wire to pass through. The guide groove 61 is used to guide the movement of the welding wire to facilitate the alignment of the welding wire and the terminal position.

[0055] The baffle 6 can protect the upper surface of the battery when the welding gun 11 is welding the terminal and the battery, thereby reducing the risk of the molten electrode falling on the battery surface and damaging the battery, thereby ensuring the life of the battery.

[0056] After the pressing plate 34 presses the terminal onto the battery, the clamping block 41 clamps the battery and adjusts the angle and position of the battery under the action of the driving assembly 42. At the same time, the moving mechanism 5 drives the supporting block 32 and the pressing plate 34 to move synchronously. Then, the mounting block 31 moves toward the direction close to the conveyor belt 2 and drives the battery, the terminal, the pressing plate 34 and the supporting block 32 to move synchronously. After that, the battery contacts the frame 1 and is limited.

[0057] In the present application, the terminal is first pressed by the pressure plate 34, and then the support block 32 and the pressure plate 34 are moved synchronously with the battery when the clamping block 41 adjusts the angle and position of the battery, so that the terminal can always maintain a relative position with the battery unchanged, which changes the existing clamping block 41 that can only position the battery, and can reduce the risk of the terminal tilting or moving on the battery, which is beneficial to improving the welding effect. At the same time, in the present application, the clamping block 41 first adjusts the position of the battery before pushing the battery to abut against the frame 1, thereby reducing the risk of damage to the battery due to contact with the frame 1 when the battery is skewed, which is beneficial to ensuring the life of the battery.

[0058] The implementation principle of the automatic battery terminal welding device in the embodiment of the present application is:

[0059] When the terminal needs to be welded on the battery, the conveyor belt 2 first conveys the battery to the corresponding position of the welding gun 11, and then the telescopic end of the first linear drive 36 moves and drives the sliding block 522 to move downward. The sliding block 522 moves downward and drives the connecting block 523, the support block 32, the pressure plate 34 and the suction cup 51 to move downward. The pressure plate 34 first contacts the top of the terminal, and then the sliding block 522 continues to move downward. The pressure plate 34 presses the terminal tightly on the battery while the first return spring 35 is compressed. Then the sliding block 522 continues to move downward, the first return spring 35 continues to be compressed, and the suction cup 51 is pressed tightly on the battery.

[0060] After the suction cup 51 is pressed onto the battery, the driving shaft of the rotation source rotates to drive the stud bolt 421 to rotate, and the rotation of the stud bolt 421 drives the clamping block 41 to move in the direction of approaching each other. The clamping block 41 clamps the battery while moving and positioning the battery. The battery moves and is driven by the suction cup 51 and the pressing action of the pressure plate 34 to make the support block 32, the pressure plate 34 and the battery rotate synchronously. At the same time, the support block 32 moves to drive the moving block 531 to slide in the Y direction and the connecting block 523 to move in the X direction, and causes the second return spring 526, the third return spring 533 and the torsion spring 541 to deform, and then the mounting block 31 moves in the direction close to the conveyor belt 2, and the mounting block 31 moves to drive the clamping block 41, the pressure plate 34, the support block 32, the battery and the terminal to move synchronously, and then the battery abuts against the frame 1, and the welding gun 11 moves down to weld the terminal to the battery.

[0061] After completing the welding of the terminals, the welding gun 11 moves up, and the mounting block 31 moves away from the conveyor belt 2. Then, the driving shaft of the rotation source rotates in the opposite direction of the initial rotation and drives the stud bolt 421 to rotate. The rotation of the stud bolt 421 drives the clamping block 41 to move away from each other, and the clamping block 41 releases the clamping of the battery. At the same time, the first linear drive 36 drives the sliding block 522 to move up, and the sliding block 522 moves up, driving the connecting block 523, the supporting block 32, and the suction cup 51 to move up. The suction cup 51 is first separated from the battery, and the restoring force of the first return spring 35 on the pressure plate 34 is reduced.

[0062] After the suction cup 51 is disengaged from the battery, the sliding block 522 continues to move upward, and the pressure plate 34 is disengaged from the terminal. Under the action of the restoring force of the second return spring 526, the connecting block 523 returns to the initial position and drives the moving block 531, the supporting block 32 and the pressure plate 34 to move back to the initial position in the X direction. Under the action of the restoring force of the third return spring 533, the moving block 531 returns to the initial position and drives the supporting block 32 and the pressure plate 34 to move back to the initial position in the Y direction. Under the action of the restoring force of the torsion spring 541, the supporting block 32 and the pressure plate 34 rotate and move back to the initial position.

[0063] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An automatic battery terminal welding device, comprising a frame, a conveyor belt conveying in the Y direction, and a welding gun capable of moving up and down, characterized in that: Also includes: Clamping mechanism, clamping and positioning mechanism and moving mechanism; The clamping mechanism is arranged on the frame, and is used to clamp the terminal on the battery. The clamping mechanism includes a mounting block arranged corresponding to the welding gun, and the mounting block is slidably connected to the frame along the X direction. A support block is arranged on the mounting block, and two pressing plates are arranged under the support block. A guide rod is fixedly connected to each pressing plate, and the guide rod passes through the support block and is slidably connected to the support block. A first return spring is sleeved on the guide rod, and the first return spring is located between the pressure plate and the support block. A first linear actuator for driving the mounting block to move up and down is installed on the mounting block; The clamping and positioning mechanism is arranged on the mounting block, and is used to adjust the position of the battery and clamp it. The clamping and positioning mechanism includes a clamping block slidably connected to the side of the mounting block close to the conveying pipe belt. A pair of clamping blocks are arranged, and a driving assembly is arranged on the mounting block. The driving assembly is used to drive the clamping blocks to move toward each other. The moving mechanism is arranged on the mounting block, and is used to make the supporting block move synchronously when the clamping block adjusts the position of the battery; The driving assembly includes a sliding groove horizontally opened on the side of the mounting block close to the conveyor belt, a pair of clamping blocks are slidably arranged in the sliding groove, a stud bolt is horizontally rotated in the mounting block, the threads at both ends of the stud bolt are in opposite directions, and the two ends of the stud bolt are respectively threadedly connected with two clamping blocks, and a rotation source is installed on the mounting block, and the rotation source is used to drive the stud bolt to rotate; The moving mechanism includes a suction cup arranged under the support block, and the mounting block is provided with an X-direction adjustment component, a Y-direction adjustment component and an angle adjustment component. The X-direction adjustment component is used to move the support block in the X direction when the clamping block drives the battery to move, the Y-direction adjustment component is used to move the support block in the Y direction when the clamping block drives the battery to move, and the angle adjustment component is used to change the angle of the support block when the clamping block drives the battery to move.

2. The battery terminal automatic welding device according to claim 1, characterized in that: The X-direction adjustment assembly includes a support frame installed on the mounting block, a sliding block is slidably connected to the support frame, a driving end of the first linear actuator is fixedly connected to the sliding block, a connecting block is arranged above the support block, a connecting rod is fixedly connected to the connecting block, the connecting rod passes through the sliding block and an end portion of the connecting rod is fixedly connected to a limiting plate, and a second return spring is arranged between the limiting plate and the sliding block.

3. The battery terminal automatic welding device according to claim 2, characterized in that: The Y-direction adjustment component includes a moving block, a placement groove for the moving block to slide horizontally is opened in the connecting block along the Y-axis direction, a third return spring is arranged between the two side walls of the moving block in the Y-axis direction and the side walls of the placement groove, and the bottom of the moving block is connected to the top of the supporting block by a fixing rod.

4. The battery terminal automatic welding device according to claim 3, characterized in that: The angle adjustment assembly includes a torsion spring sleeved on the fixed rod, and two ends of the torsion spring are respectively fixedly connected to the moving block and the supporting block, and the fixed rod is rotatably connected to the supporting block.

5. The battery terminal automatic welding device according to claim 1, characterized in that: A pair of the clamping blocks are fixedly connected with baffles on one side facing each other, and the baffles are located on the tops of the clamping blocks.

6. The battery terminal automatic welding device according to claim 5, characterized in that: The upper surface of the baffle is provided with a guide groove.

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