A car battery assembly robot

Abstract

The present invention relates to the field of industrial robots, and in particular to an automobile battery assembly robot, comprising a mechanical arm shell, wherein a linear material channel is provided inside the mechanical arm shell, a first transmission belt is symmetrically arranged on both sides of the rear of the linear material channel, a second transmission belt is symmetrically arranged on both sides of the front of the linear material channel, and a plurality of leaks are arranged on the bottom surface of the front of the linear material channel; a loading component conducts cylindrical cells from the rear end of the linear material channel to the inside thereof, and the cylindrical cells enter between the first transmission belts in a vertical state; the present invention adopts a loading component to transport the cylindrical cells into the linear material channel row by row, and quickly transports the cells to the second transmission belt through the first transmission belt, and the positioning blocks arranged on the surface of the second transmission belt can position and align the cells one by one with the leaks, and the cylindrical cells are pressed down and assembled on the surface of the material tray through the pressing component, thereby omitting the moving material taking process required for the traditional cylindrical cell assembly, and saving battery assembly time.

Description

Technical Field

[0001] The invention relates to the field of industrial robots, and in particular to an automobile battery assembly robot. Background Art

[0002] Cylindrical batteries occupy a certain share in the field of power batteries. Cylindrical power batteries are formed by arranging and assembling several cylindrical battery cells. The automated assembly line for cylindrical power batteries is relatively complete, among which battery cell assembly is an important step. A robot is used to arrange and assemble the cylindrical battery cells on the surface of the end material tray according to the distribution design. However, traditional assembly robots can only pick up one row of cylindrical battery cells from the loading position for assembly at a time. A single bottom shell is completely assembled with battery cells, and the robot needs to take and put materials several times, which makes the battery cell assembly process time-consuming. Summary of the invention

[0003] The purpose of the present invention is to solve the following problems existing in the prior art: the traditional assembly robot can only pick up one row of cylindrical battery cells from the loading position for assembly at a time, and a single bottom shell is completely assembled with battery cells, which requires the robot to take and put materials several times, making the assembly process of the battery cells time-consuming.

[0004] In order to solve the problems existing in the prior art, the present invention provides an automobile battery assembly robot, comprising a mechanical arm shell, a linear material channel is provided inside the mechanical arm shell, a first transmission belt is symmetrically arranged on both sides of the rear of the linear material channel, a second transmission belt is symmetrically arranged on both sides of the front of the linear material channel, and a plurality of leaks are arranged on the bottom surface of the front of the linear material channel;

[0005] A feeding assembly, which conducts the cylindrical battery cells from the rear end of the linear material channel to the inside thereof, and the cylindrical battery cells enter between the first transmission belts in a vertical state;

[0006] A plurality of blocking blocks are arranged at equal intervals on the surface of the belt body of the second transmission belt. Two groups of first transmission belts conduct and rotate in reverse direction to transport cylindrical cells to between the second transmission belts. Two groups of second transmission belts conduct and rotate in reverse direction to transport cylindrical cells to the front end of the linear material channel, so that the cylindrical cells are vertically aligned with the leakage port, and the cylindrical cells are blocked one by one between the blocking blocks.

[0007] The pressing assembly is arranged at the upper front end of the mechanical arm shell, and is used to push the cylindrical battery cell downward from the leak.

[0008] Preferably, the linear speed of the transmission rotation of the second transmission belt is lower than the linear speed of the transmission rotation of the first transmission belt.

[0009] Preferably, the pressing assembly includes a lifting plate, which is arranged above the mechanical arm shell, and the first cylinder is installed on the surface of the lifting plate. The telescopic end of the first cylinder is vertically connected to the mechanical arm shell, and a plurality of push rods are arranged and fixed at the bottom of the lifting plate. The push rods are vertically aligned with the leakage outlet one by one, and the push rods slide downward and are inserted into the linear material channel.

[0010] Preferably, a micro switch is installed at the bottom end of the push rod, the touch component of the micro switch faces downward, the cylindrical battery cell with the leakage port is squeezed to contact the touch component of the micro switch, and the micro switch is electrically connected to the first cylinder through the controller.

[0011] Preferably, guide cylinders are aligned below the leaks, connecting plates are fixedly connected on both sides of the guide cylinders, and the connecting plates are vertically connected to the mechanical arm shells through elastic telescopic columns. Pressing handles are symmetrically fixed on both sides of the lifting plate. When the first cylinder contracts, the lifting plate is driven to drive the pressing handles to descend, so that the pressing handles squeeze the connecting plates and the guide cylinders to descend vertically.

[0012] Preferably, the loading assembly includes two symmetrically arranged material boxes, the cylindrical battery cells are laid flat on the inner side surfaces of the material boxes, a discharge trough is provided below the two material boxes, the discharge trough passes straight through the linear material channel, a notch is provided at the bottom of the side surface of the material box, the notch of the material box and the discharge trough are connected by a guide plate, the guide plate is inclined downward from the notch to the discharge trough, and the inclination angle is greater than 45°, so that the cylindrical battery cells are tilted and slide along the guide plate to the discharge trough and lie flat on the end face, and the two side parts of the U-shaped frame slide horizontally on the bottom of the two material boxes, and the output shaft of the motor drives the U-shaped frame to slide back and forth left and right through gears and racks, so that the two side parts of the U-shaped frame alternately push the cylindrical battery cells in the lower row of the two material boxes into the discharge trough, and a second cylinder is provided at the rear of the discharge trough, the telescopic end of the second cylinder fixes the push plate, and the second cylinder drives the push plate to push the cylindrical battery cells in the discharge trough into the linear material channel.

[0013] Preferably, a plurality of recessed material channels are arranged on the bottom surface of the material box and the surface of the material guide plate, so that the cylindrical cells at the bottom layer of the material box can neatly enter the discharge chute along the recessed material channels.

[0014] Preferably, the electrode end surfaces of the cylindrical battery cells lying flat on the side surface inside the material box point to the discharge slot, and the electrodes of the cylindrical battery cells in the two material boxes pointing to one end of the discharge slot are opposite.

[0015] Compared with the related art, the automobile battery assembly robot provided by the present invention has the following beneficial effects:

[0016] The present invention adopts a loading assembly to convey cylindrical battery cells row by row into a linear material channel, and quickly conveys the battery cells to the second transmission belt through a first transmission belt. The positioning blocks arranged on the surface of the second transmission belt can position the battery cells one by one and align them with the leak. The cylindrical battery cells are pressed down and assembled on the surface of the material tray through a pressing assembly, thereby omitting the moving and material taking process required for the traditional cylindrical battery cell assembly, saving battery assembly time and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0018] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the pressing assembly of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the mechanical arm shell of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the first transmission belt and the second transmission belt of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the cylindrical battery cell discharged by the pressing assembly of the present invention;

[0023] Figure 7 This is a schematic diagram of the guide cylinder connecting plate structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the feeding assembly of the present invention;

[0025] Fig. 9 This is a schematic diagram of the structure of the material box connected to the discharge chute of the present invention;

[0026] Fig.10 This is a schematic diagram of the installation position of the second cylinder of the present invention.

[0027] Numbers in the figure: 1. Robot arm shell; 11. First transmission belt; 12. Second transmission belt; 13. Positioning block; 14. Leakage; 2. Material box; 21. Discharge chute; 22. Material guide plate; 23. U-shaped frame; 24. Motor; 25. Second cylinder; 26. Push plate; 3. First cylinder; 31. Lifting plate; 32. Push rod; 33. Press handle; 34. Micro switch; 4. Guide cylinder; 41. Connecting plate; 42. Elastic telescopic column. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] Embodiment 1

[0031] Car battery assembly robots, such as Figure 1 , Figure 2 As shown, it has two parts: a loading component and a robotic arm;

[0032] like Figure 8 , Fig. 9 , Fig.10 As shown, the loading assembly has two symmetrically arranged material boxes 2, the top of the material box 2 is open for placing cylindrical batteries, a discharge groove 21 is arranged below the two material boxes 2, the width of the discharge groove 21 is adapted to the diameter gap of the cylindrical batteries, the cylindrical batteries arranged in the material box 2 are placed flat on their sides, and the circular end faces of the cylindrical batteries point to the discharge groove 21. A notch is provided at the bottom of the material box 2 near the discharge groove, the size of the notch is only enough to pass a cylindrical battery with a square side, and a guide plate 22 is provided between the notch and the discharge groove 21, and the guide plate 22 extends from the notch to The direction of the discharge chute 21 is tilted downward, and the tilt angle is greater than 45°. The bottoms of the two material boxes 2 are provided with movable grooves aligned with the position of the bottom row of cylindrical cells. The two sides of the U-shaped frame 23 slide horizontally in the movable grooves at the bottom of the two material boxes 2. The output shaft of the motor 24 is fixed with a gear, and the surface of the U-shaped frame 23 is fixed with a rack. The gear and the rack are meshed and connected. A second cylinder 25 is installed at the rear of the discharge chute 21. The telescopic end of the second cylinder 25 penetrates into the discharge chute and a push plate 26 is fixedly installed. The front of the discharge chute 21 has an outlet for discharging cylindrical cells.

[0033] The number of cells in each row of the two material boxes 2 is the same as the number of cells to be assembled in a single row on the surface of the bottom shell. The motor 24 is turned on to rotate intermittently, and the U-shaped frame 23 is intermittently slid left and right through the meshing transmission of the gear and the rack. When the U-shaped frame 23 slides to the right, the left side of the U-shaped frame 23 pushes the cells of the lowest layer in the left material box 2 out of the notch, and the right side of the U-shaped frame 23 moves to the right end of the cells of the lowest layer in the right material box 2. When the U-shaped frame 23 slides to the left, the right side of the U-shaped frame 23 pushes the cells of the lowest layer in the right material box 2 out of the notch, and the left side of the U-shaped frame 23 moves to the left end of the cells of the lowest layer in the left material box 2, thereby realizing that the cells in the two material boxes 2 are pushed out of the notch in alternating rows;

[0034] The cylindrical battery cell pushed out by the notch slides along the guide plate 22 toward the discharge trough 21. Since the guide plate 22 has a large inclination angle, when the cylindrical battery cell slides into the discharge trough 21, the end face of the cylindrical battery cell lies flat. The second cylinder 25 is turned on to extend, and the cylindrical battery cell with the end face lying flat in the discharge trough 21 is pushed through the push plate 26 from the outlet into the robot arm.

[0035] A plurality of recessed material channels are arranged on the bottom surface of the material box 2 and the surface of the material guide plate 22, so that the cylindrical battery cells at the bottom of the material box 2 can enter the discharge groove 21 neatly along the recessed material channels, thereby preventing the cylindrical battery cells from being displaced when entering the discharge groove 21 and failing to smoothly transform into a flat end face state.

[0036] like Figure 4 , Figure 5 As shown, the robot arm is based on a robot arm shell 1, which is fixedly connected to the part between the two material boxes 2. The robot arm shell 1 has a straight material channel inside, and the rear end of the straight material channel passes through the outlet at the front of the discharge trough 21. The first transmission belts 11 are symmetrically arranged on both sides of the rear of the straight material channel, and the second transmission belts 12 are symmetrically arranged on both sides of the front of the straight material channel. The first transmission belt 11 and the second transmission belt 12 are both existing conveyor belt structures, and have two transmission wheels. The belt bodies are sleeved on the outside of the two transmission wheels, and the belt bodies are tightened. One of the transmission wheels is connected to a motor, and the motor drives the transmission wheel to rotate, so that the belt body is driven to rotate and transmit, and the belt bodies of the two first transmission belts 11 are opposite in conduction direction, and the belt bodies of the two second transmission belts 12 are opposite in conduction direction;

[0037] like Figure 3 As shown, a plurality of leaks 14 are arranged at equal intervals on the bottom surface of the front part of the linear material channel, and a plurality of clamping blocks 13 are arranged at equal intervals on the surface of the belt body of the second transmission belt 12. The spacing between adjacent clamping blocks 13 is smaller than the diameter of the cylindrical battery cell, so that two adjacent groups of clamping blocks 13 aligned with the two second transmission belts 12 can stably clamp a cylindrical battery cell;

[0038] like Figure 3 As shown, the pressing assembly includes a lifting plate 31, which is arranged above the mechanical arm shell 1, and the first cylinder 3 is installed on the surface of the lifting plate 31. The telescopic end of the first cylinder 3 is vertically connected to the mechanical arm shell 1. A plurality of push rods 32 are arranged and fixed at the bottom of the lifting plate 31. The push rods 32 are vertically aligned with the leakage opening 14 one by one. The push rods 32 slide downward and are inserted into the linear material channel. The bottom ends of the push rods 32 are all installed with micro switches 34. The touch components of the micro switches 34 face downward, and the cylindrical electric core aligned with the leakage opening 14 squeezes and contacts the touch components of the micro switches 34. The micro switches 34 are electrically connected to the first cylinder 3 through the controller.

[0039] The material tray carrying the cylindrical battery cell rotates linearly below the robot arm shell 1 through the conveyor belt, and the battery cell assembly position on the surface of the material tray is vertically aligned with the leakage 14. The cylindrical battery cell provided by the material box 2 enters the linear material channel from the rear end, and the belt bodies of the two first transmission belts 11 clamp the cylindrical battery cell and convey the cylindrical battery cell forward. The cylindrical battery cell reaches the second transmission belt 12, and the two groups of positioning blocks 13 on the surface of the second transmission belt 12 clamp and position the cylindrical battery cell one by one, and the second transmission belt 12 conveys the cylindrical battery cell forward. When the cylindrical battery cells are vertically aligned with the leakage 14 one by one, all the micro switches 34 are squeezed and touched by the top of the cylindrical battery cell, and the controller turns off the second transmission belt 12, turns on the first cylinder 3 to contract, so that the lifting plate 31 drives the push rod 32 to descend, and the micro switch 34 presses down the cylindrical battery cell, so that the cylindrical battery cell is discharged downward from the leakage 14 to the assembly position on the material tray surface;

[0040] After a row of cells are assembled on the surface of the tray, the conveyor belt drives the tray to move forward an assembly position. At the same time, the first cylinder 3 extends to make the micro switch 34 rise and reset, and the second transmission belt 12 is turned on to arrange the conductive cylindrical cells one by one to align with the leak 14, and then assemble and discharge the cells again, and so on, stably assembling the cylindrical cells row by row on the surface of the tray.

[0041] The linear speed of the conduction rotation of the second transmission belt 12 is lower than that of the conduction rotation of the first transmission belt 11, so that the first transmission belt 11 can quickly conduct the cylindrical battery cells to the second transmission belt 12, and the cylindrical battery cells at the end of the second transmission belt 12 are arranged and stacked. The adjacent positioning blocks 13 on the surface of the second transmission belt 12 can clamp and transmit the cylindrical battery cells one by one to avoid vacancies between the positioning blocks 13. In case vacancies occur in the arranged battery cells, the micro switch 34 corresponding to the vacant space is not touched. At this time, the controller can transmit assembly abnormality information to prompt the staff to know the abnormality in time, which is conducive to the rapid implementation of fault resolution.

[0042] Since the height between the robot arm housing 1 and the lower tray is fixed, in order to stably prevent the cylindrical battery cells from falling downward, it is necessary to set an auxiliary component below the leak 14. The specific operation is as follows:

[0043] like Figure 2 , Figure 6 , Figure 7 As shown, the guide cylinder 4 is aligned and arranged below the leakage port 14, and the two sides of the guide cylinder 4 are fixedly connected to the connecting plate 41, and the connecting plate 41 is vertically connected to the mechanical arm shell 1 through the elastic telescopic column 42. The pressing handles 33 are symmetrically fixed on both sides of the lifting plate 31, and the pressing handles 33 are aligned with the connecting plate 41. The elastic telescopic column 42 is composed of two or more slides that are slidably plugged into each other, and a spring is connected between the slide cylinders at both ends. The elastic telescopic column 42 is normally contracted by the elastic force;

[0044] During non-assembly work, the guide cylinder 4 is tightly attached to the bottom of the leak 14, and the distance between the bottom end of the guide cylinder 4 and the tray is greater than the height of the cylindrical battery cell. During assembly work, the first cylinder 3 contracts to drive the push rod 32 to discharge the cylindrical battery cell downward, and the pressing handle 33 follows the lifting plate 31 to descend. When the cylindrical battery cell is squeezed and moves downward but has not escaped the squeezing of the positioning block 13, the pressing handle 33 begins to contact and press down the connecting plate 41. Under the guidance of the extension of the elastic telescopic column 42, the guide cylinder 4 is vertically descended. The distance between the guide cylinder 4 and the tray is less than the height of the cylindrical battery cell. The cylindrical battery cell discharged from the leak 14 passes through the guide cylinder 4. When the cylindrical battery cell is inserted into the assembly position on the surface of the tray, the cylindrical battery cell is fixed with the help of the guide cylinder 4 to avoid displacement during the downward pressing process, so as to ensure that the cylindrical battery cell is stably assembled on the surface of the tray.

[0045] When the first cylinder 3 extends and drives the push rod 32 to rise, the guide cylinder 4 rises and resets under the elastic force of the elastic telescopic column 42, and the bottom of the guide cylinder 4 does not contact the assembled cylindrical battery cell, so that the material tray can be stably replaced and the battery cell can be continuously assembled.

[0046] Embodiment 2

[0047] In order to make the overall current distribution and thermal field of the battery uniform, it is often necessary to place the electrodes of adjacent rows of cells in opposite directions, that is, one row of cells with positive electrodes facing upwards and one row of cells with negative electrodes facing upwards, alternating. Therefore, it is necessary to control the feeding assembly to alternately convey the electrodes of each row of cylindrical cells to the robot arm in opposite directions. The specific operations are as follows:

[0048] like Fig. 9 As shown, the electrodes of the cylindrical battery cells arranged in the two material boxes 2 pointing to one end of the discharge trough 21 are opposite, and the U-shaped frame 23 alternately pushes the cylindrical battery cells in the two material boxes 2 into the discharge trough 21. After the cylindrical battery cells discharged from the two material boxes 2 arrive at the discharge trough 21, the electrodes at the upper and lower ends are placed oppositely, so that the robotic arm assembles the electrodes of each row of cylindrical battery cells to the material tray with opposite directions.

Claims

1. An automobile battery assembly robot, characterized in that: include: A mechanical arm shell (1), wherein a linear material channel is provided inside the mechanical arm shell (1), first transmission belts (11) are symmetrically arranged on both sides of the rear portion of the linear material channel, second transmission belts (12) are symmetrically arranged on both sides of the front portion of the linear material channel, and a plurality of leaks (14) are arranged on the bottom surface of the front portion of the linear material channel; A loading assembly, which transfers the cylindrical battery core from the rear end of the linear material channel to the interior of the linear material channel, and the cylindrical battery core enters between the first transmission belts (11) in a vertical state; A plurality of blocking blocks (13) are equidistantly arranged on the surface of the belt body of the second transmission belt (12); two groups of first transmission belts (11) conduct reverse rotation to transport cylindrical cells to between the second transmission belts (12); two groups of second transmission belts (12) conduct reverse rotation to transport cylindrical cells to the front end of the linear material channel, so that the cylindrical cells are vertically aligned with the leakage opening (14), and the cylindrical cells are blocked one by one between the blocking blocks (13); A downward pressing component, which is arranged at the upper front end of the mechanical arm shell (1) and is used to push the cylindrical battery cell downward from the leak (14); The pressing assembly comprises a lifting plate (31), the lifting plate (31) is arranged above the mechanical arm shell (1), the first cylinder (3) is installed on the surface of the lifting plate (31), the telescopic end of the first cylinder (3) is vertically connected to the mechanical arm shell (1), a plurality of push rods (32) are arranged and fixed at the bottom of the lifting plate (31), the push rods (32) are vertically aligned with the leakage openings (14) one by one, and the push rods (32) slide downward and are inserted into the linear material channel; The loading assembly comprises two symmetrically arranged material boxes (2), the cylindrical battery cells are placed flat on the inner side of the material boxes (2), a discharge groove (21) is provided below the two material boxes (2), the discharge groove (21) passes through the linear material channel in a straight line, a notch is provided at the bottom of the side of the material box (2), the notch of the material box (2) and the discharge groove (21) are connected via a guide plate (22), the guide plate (22) is tilted downward from the notch to the discharge groove (21), and the tilt angle is greater than 45°, so that the cylindrical battery cells slide along the guide plate (22) to the discharge groove (21) and are end-on. The two sides of the U-shaped frame (23) are placed flat, and the two side parts of the U-shaped frame (23) slide horizontally on the bottom of the two material boxes (2). The output shaft of the motor (24) drives the U-shaped frame (23) to slide back and forth through gears and racks, so that the two side parts of the U-shaped frame (23) alternately push the cylindrical battery cells in the lowermost row of the two material boxes (2) into the discharge trough (21). The rear part of the discharge trough (21) is provided with a second cylinder (25), and the telescopic end of the second cylinder (25) is fixed with a push plate (26). The second cylinder (25) drives the push plate (26) to push the cylindrical battery cells in the discharge trough (21) into the linear material channel.

2. The automotive battery assembly robot according to claim 1, characterized in that: The linear speed of the transmission rotation of the second transmission belt (12) is lower than the linear speed of the transmission rotation of the first transmission belt (11).

3. The automotive battery assembly robot according to claim 1, characterized in that: A micro switch (34) is installed at the bottom end of the push rod (32), the touch component of the micro switch (34) faces downward, and the cylindrical battery core of the alignment leakage port (14) squeezes and contacts the touch component of the micro switch (34), and the micro switch (34) is electrically connected to the first cylinder (3) through the controller.

4. The automotive battery assembly robot according to claim 1, characterized in that: Guide cylinders (4) are arranged in alignment below the leakage openings (14), and connecting plates (41) are fixedly connected to the two sides of the guide cylinders (4), and the connecting plates (41) are vertically connected to the mechanical arm shell (1) through elastic telescopic columns (42). Pressing handles (33) are symmetrically fixed to the two sides of the lifting plate (31), and when the first cylinder (3) contracts, the lifting plate (31) is driven to drive the pressing handles (33) to descend, so that the pressing handles (33) squeeze the connecting plates (41) and the guide cylinders (4) to descend vertically.

5. The automotive battery assembly robot according to claim 1, characterized in that: A plurality of recessed material channels are arranged on the bottom surface of the material box (2) and the surface of the material guide plate (22), so that the cylindrical cells at the bottom of the material box (2) can neatly enter the discharge trough (21) along the recessed material channels.

6. The automotive battery assembly robot according to claim 1, characterized in that: The electrode end faces of the cylindrical battery cells placed flat on the side surface inside the material box (2) point towards the discharge groove (21), and the electrodes of the cylindrical battery cells in the two material boxes (2) pointing towards the discharge groove (21) are opposite.

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