Battery cell clamping mechanism

Abstract

The invention relates to the technical field of battery cell assembly, in particular to a battery cell clamping mechanism which comprises an optical axis, a support is slidably mounted on the optical axis, the included angle of the upper half portions of two clamping assemblies is larger than that of the lower half portions of the two clamping assemblies, and the support is rotationally connected with the opposite sides of the lower half portions of the two clamping assemblies. Rollers located below the upper half portions of the two clamping assemblies are fixedly installed on the two sides of the bottom of the polished shaft, and a suction cup located between the two clamping assemblies is fixedly installed at the bottom of the polished shaft. The output end of the lifting assembly is fixedly connected with the optical axis for driving the optical axis to move; the driving assembly is fixed to the optical axis, and the output end of the driving assembly is fixedly connected with the support so as to drive the clamping assembly to ascend and descend relative to the rolling wheels. The battery cell clamping mechanism is used for replacing manual clamping of the battery cell, so that the danger that the battery cell is unstable to hold, slips and falls off due to physical strength reduction after long-time manual work is avoided, and the battery cell clamping mechanism is simple in structure and simpler and more convenient to maintain.

Description

Technical Field

[0001] The invention relates to the technical field of battery core assembly, in particular to a battery core clamping mechanism. Background Art

[0002] During the battery production process, energy storage devices such as lithium batteries need to undergo a series of tests, such as high-temperature formation, capacity division, OCV (Open Circuit Voltage) testing, etc. During this series of tests, the batteries need to be accurately transported from the pallet to the test line. When the battery is moved from the transport line to the designated test position, a special manipulator device is required to clamp the individual batteries and place them accurately at the designated test position for subsequent testing, such as clamping testing with the tab probe.

[0003] There are some problems with the existing gripping robot device. First, the mechanism design is complex, which leads to high manufacturing and maintenance costs of the equipment. Secondly, due to the complexity of the mechanism, the reliability and stability of the equipment may also be affected, thereby increasing the failure rate. Alternatively, the battery cells are manually transported, which increases labor costs. In addition, the battery cells are heavy and manual transportation is more laborious. If the workers' physical strength decreases after working for a long time, they are prone to slipping and falling, causing danger. Summary of the invention

[0004] In order to address the deficiencies in the prior art, the present invention provides a battery cell clamping mechanism, comprising an optical axis, a bracket slidably mounted on the optical axis, the angle between the upper parts of the two clamping assemblies is greater than the angle between the lower parts, the brackets are rotatably connected to the opposite sides of the lower parts of the two clamping assemblies, rollers respectively located below the upper parts of the two clamping assemblies are fixedly mounted on both sides of the bottom of the optical axis, and a suction cup located between the two clamping assemblies is fixedly mounted on the bottom of the optical axis; a lifting assembly, whose output end is fixedly connected to the optical axis for driving the optical axis to move; a driving assembly, fixed on the optical axis, whose output end is fixedly connected to the bracket to drive the clamping assembly to move up and down relative to the rollers.

[0005] Preferably, two symmetrical guard plates are fixedly installed at the bottom of the bracket, two symmetrical round rods are fixedly installed between the two guard plates, sleeves are rotatably sleeved on the round rods, and the lower halves of the two clamping assemblies are fixedly connected to the two sleeves respectively.

[0006] Preferably, each clamping assembly is divided into an upper plate and a lower plate, and a receiving groove is provided on the top of the two upper plates, the receiving groove is adapted to the optical axis, and the angle formed by the two upper plates is greater than the angle formed by the two lower plates being extended and intersected.

[0007] Preferably, the bottoms of the two lower plates are bent toward opposite sides, and rubber pads are fixedly mounted on the bottoms of the lower plates.

[0008] Preferably, a mounting assembly is fixedly mounted on the bottom of the optical axis, the roller and the suction cup are both fixedly mounted on the mounting assembly, and the output end of the suction cup faces downward.

[0009] Preferably, the mounting assembly includes a mounting plate and a plurality of extension rods, the mounting plate is fixedly connected to the bottom of the optical axis, the two rollers are respectively fixed on both sides of the two mounting plates, the extension rods are fixedly connected to the mounting plate, and the two suction cups are fixed to the bottom of the plurality of extension rods.

[0010] Preferably, the driving assembly includes: a connecting member, which is fixedly connected to the optical axis; two pulley assemblies, which include a fixed rod and an upper shaft rod fixed to the connecting member, and a lower shaft rod fixed to the top of the bracket, a left pulley and a right pulley are fixedly installed on the lower shaft rod, and an upper pulley is fixedly installed on the upper shaft rod, the head end of the pull rope is fixed to the fixed rod, and the tail end passes around the left pulley, the upper pulley and the right pulley in turn; a driving member fixed to the connecting member, the driving member is fixedly connected to the tail ends of the two pull ropes, and the driving member pulls the two pull ropes at the same time to shorten the distance between the connecting member and the bracket, and vice versa to increase the distance between the connecting member and the bracket.

[0011] Preferably, the driving member is a motor, and a winding machine with two mounting grooves is fixedly mounted on the driving end of the motor, and the tail ends of the two pull ropes are respectively wound around the two mounting grooves on the winding machine, and the winding directions are the same.

[0012] Preferably, the driving member is a brake handle, and the two pull ropes are fixedly connected to the output end of the brake handle.

[0013] The present invention has the following beneficial effects:

[0014] When the optical axis rises, the force of the rising optical axis drives the clamping assembly to rotate, so that the clamping assembly clamps both sides of the battery cell, and cooperates with the installation assembly to clamp the battery cell, so that the battery cell remains stable and does not fall during the movement. By using the battery cell clamping mechanism instead of manual battery cell clamping, the risk of slipping and falling due to decreased physical strength after long-term work is avoided. The structure is simple and maintenance is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure provided by the present invention.

[0016] Figure 2 It is a schematic diagram of the internal structure provided by the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the pulley assembly provided by the present invention.

[0018] Attached Figure 1-3The structures represented by the labels are listed below:

[0019] 1. Optical axis; 11. Sliding sleeve; 2. Bracket; 21. Guard plate; 22. Round rod; 23. Sleeve; 3. Mounting assembly; 31. Mounting plate; 32. Extension rod; 4. Clamping assembly; 41. Upper plate; 42. Lower plate; 43. Receiving groove; 5. Roller; 6. Suction cup; 7. Connector; 8. Pulley assembly; 81. Fixed rod; 82. Upper shaft rod; 83. Lower shaft rod; 84. Left pulley; 85. Right pulley; 86. Upper pulley; 87. Pull rope. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0021] It should be noted that when a part or component is considered to be "connected", "located", or "assembled" on another part or component, it may be directly disposed on the other part or component or there may be a central part or component at the same time. The terms "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only.

[0022] In a specific embodiment, Figure 1-3 As shown, a battery cell clamping mechanism comprises an optical axis 1, a bracket 2 is slidably mounted on the optical axis 1, the angle between the upper parts of the two clamping assemblies 4 is greater than the angle between the lower parts, the bracket 2 is rotatably connected to the opposite sides of the lower parts of the two clamping assemblies 4, rollers 5 respectively located below the upper parts of the two clamping assemblies 4 are fixedly mounted on both sides of the bottom of the optical axis 1, and a suction cup 6 located between the two clamping assemblies 4 is fixedly mounted on the bottom of the optical axis 1;

[0023] A lifting component, the output end of which is fixedly connected to the optical axis 1 and is used to drive the optical axis 1 to move;

[0024] The driving component is fixed on the optical axis 1 , and its output end is fixedly connected to the bracket 2 to drive the clamping component 4 to move up and down relative to the roller 5 .

[0025] The lifting component can be a winch, an electric telescopic rod, a gas cylinder, an oil cylinder, etc.

[0026] In this embodiment, a sliding sleeve 11 is slidably sleeved on the optical axis 1 , and the bracket 2 is fixedly connected to the sliding sleeve 11 to achieve a sliding connection with the optical axis 1 .

[0027] Two symmetrical guard plates 21 are fixedly installed at the bottom of the bracket 2, and two symmetrical round rods 22 are fixedly installed between the two guard plates 21. A sleeve 23 is rotatably sleeved on the round rod 22. The lower parts of the two clamping components 4 are fixedly connected to the two sleeves 23 respectively. The two guard plates 21 are respectively located at the two side openings formed by the two clamping components 4. A number of observation holes are opened on the guard plates 21, which prevent large foreign objects from entering between the two clamping components 4 and facilitate observation of the internal structure between the two clamping components 4. When there is a problem, it can be discovered and checked in time.

[0028] In this embodiment, each of the clamping components 4 is divided into an upper plate 41 and a lower plate 42. The tops of the two upper plates 41 are provided with a receiving groove 43, which is adapted to the optical axis 1. The optical axis 1 passes through the receiving groove 43, so that the optical axis 1 and the clamping component 4 do not contact each other. When there is no external force, the tops of the two upper plates 41 are in contact with each other. The angle formed by the two upper plates 41 is greater than the angle formed by the two lower plates 42 after extending and intersecting. The two rollers 5 correspond to the two upper plates 41 respectively, that is, when the rollers 5 move upward, they can contact the upper plate 41 and drive the lower plate 42 to rotate around the sleeve 23. The bottoms of the two lower plates 42 are bent to the opposite side, so that the clamping is more stable when contacting the battery cell, and the bottom is in contact with the battery cell, and the contact surface is larger, which prevents the corners from directly contacting the battery cell and causing the battery cell to deform and concave.

[0029] A rubber pad is fixedly installed at the bottom of the lower plate 42 to increase friction and prevent hard contact between the lower plate 42 and the battery cell.

[0030] In this embodiment, a mounting assembly 3 is fixedly installed at the bottom of the optical axis 1, and the roller 5 and the suction cup 6 are fixedly installed on the mounting assembly 3. The suction cup 6 is located below the roller 5 with the output end facing downward. There are two suction cups 6 and they are axially symmetrically distributed with the optical axis 1 as the axis. The two suction cups 6 are located between the two clamping assemblies 4 and on the same horizontal line.

[0031] The mounting assembly 3 includes a mounting plate 31 and a plurality of extension rods 32. The mounting plate 31 is fixedly connected to the bottom of the optical axis 1. The two rollers 5 are respectively fixed to the two sides of the two mounting plates 31 and protrude from the sides of the mounting plates 31 to prevent the mounting plates 31 from contacting the clamping assembly 4. The extension rods 32 are fixedly connected to the mounting plate 31 and extend toward the bottom of the mounting plate 31. The two suction cups 6 are fixed to the bottom of the plurality of extension rods 32.

[0032] The suction cup 6 is not an electromagnetic suction cup 6 .

[0033] The suction cup 6 is one of an electric suction cup 6 , a pneumatic suction cup 6 , a hydraulic suction cup 6 , and a vacuum suction cup 6 .

[0034] In this embodiment, the driving component is one of the devices with linear telescopic function such as an electric telescopic rod, a pneumatic cylinder, and an oil cylinder.

[0035] The above-mentioned battery cell clamping mechanism can be further optimized and / or improved according to actual needs:

[0036] In order to consider the overall equipment quality, the drive components include:

[0037] A connecting member 7, wherein the connecting member 7 is fixedly connected to the optical axis 1;

[0038] Two pulley assemblies 8, the pulley assemblies 8 include a fixed rod 81 and an upper shaft rod 82 fixed to the connecting member 7, a lower shaft rod 83 fixed to the top of the bracket 2, a left pulley 84 and a right pulley 85 fixedly mounted on the lower shaft rod 83, an upper pulley 86 fixedly mounted on the upper shaft rod 82, a pull rope 87 with a head end fixed to the fixed rod 81, and a tail end passing through the left pulley 84, the upper pulley 86, and the right pulley 85 in sequence. The two pulley assemblies 8 are mirror-symmetrical with the optical axis 1 as the midpoint and the length direction of the bracket 2.

[0039] The driving member is fixed on the connecting member 7, and the driving member is fixedly connected to the tail ends of the two pull ropes 87. The driving member simultaneously pulls the two pull ropes 87 to shorten the distance between the connecting member 7 and the bracket 2, and vice versa to increase the distance between the connecting member 7 and the bracket 2.

[0040] In this embodiment, the driving member is a motor, and a winding machine with two mounting slots is fixedly mounted on the driving end of the motor. The tail ends of the two pull ropes 87 are respectively wound around the two mounting slots on the winding machine, and the winding directions are the same, that is, the motor winds the two pull ropes 87 synchronously or releases the two pull ropes 87 when rotating, and the winding / releasing lengths are equal, so that the angle of the bracket 2 itself will not deflect when it is rising or falling.

[0041] When it is necessary to clamp the battery cell, the battery cell is placed between the two clamping assemblies 4, and the battery cell is sucked by the suction cup 6. Then, the motor is started to release the pull rope 87, so that the bracket 2 is lowered to drive the clamping assembly 4 to descend and contact the roller 5, and the clamping assembly 4 is rotated so that the bottom of the clamping assembly 4 contacts the battery cell to clamp the battery cell. When it is necessary to release the battery cell, the drive motor is reversed to wind the pull rope 87, so that the clamping assembly 4 rises and disengages from the roller 5.

[0042] In other embodiments, the driving member is a brake handle, and the two pull ropes 87 are fixedly connected to the output end of the brake handle. In the initial state of not clamping the battery cell, the distance between the bracket 2 and the connecting member 7 is the longest, the roller 5 is in contact with the upper plate 41, and the bottom distance of the lower plate 42 is less than the width of the battery cell. The practical brake handle replaces the motor, making the overall weight lighter and more lightweight, and there is no need to use electric control, and it can be directly controlled manually, which is simpler as a whole and more convenient to use during operation.

[0043] When it is necessary to clamp the battery cell, first pinch the brake handle, pull the bracket 2 up through the pull rope 87 to disengage the clamping assembly 4 from the roller 5, rotate the clamping assembly 4 to expand the distance between the bottoms of the two clamping assemblies 4, so that the battery cell is located between the two clamping assemblies 4, and suck the battery cell through the suction cup 6, release the brake handle, and allow the bracket 2 to descend by its own weight to drive the clamping assembly 4 and the roller 5 to re-contact, so that the clamping assembly 4 rotates, and the bottom of the clamping assembly 4 contacts the battery cell to clamp the battery cell, and the gravity of the bracket 2 and the clamping assembly 4 allows the clamping assembly 4 to continuously maintain a clamping force on the battery cell. When it is necessary to release the battery cell, pinch the brake handle to disengage the clamping assembly 4 from the roller 5.

[0044] To sum up: during the rising process of the optical axis 1, the force generated by the rising of the optical axis 1 drives the clamping assembly 4 to rotate, so that the clamping assembly 4 clamps the two sides of the battery cell, and cooperates with the installation assembly 3 to clamp the battery cell, so that the battery cell remains stable and will not fall during the movement. By using the battery cell clamping mechanism instead of manually clamping the battery cell, the risk of slipping and falling due to the decline in physical strength after long-term work is avoided, and the structure is simple, which is easier and more convenient to maintain.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A battery cell clamping mechanism, characterized in that: The optical axis (1) comprises an optical axis (1), a bracket (2) is slidably mounted on the optical axis (1), the angle between the upper parts of the two clamping assemblies (4) is greater than the angle between the lower parts, the bracket (2) is rotatably connected to the opposite sides of the lower parts of the two clamping assemblies (4), rollers (5) are fixedly mounted on both sides of the bottom of the optical axis (1) and are respectively located below the upper parts of the two clamping assemblies (4), and a suction cup (6) is fixedly mounted on the bottom of the optical axis (1) and is located between the two clamping assemblies (4); A lifting component, the output end of which is fixedly connected to the optical axis (1) and is used to drive the optical axis (1) to move; The driving component is fixed on the optical axis (1), and its output end is fixedly connected to the bracket (2) to drive the clamping component (4) to move up and down relative to the roller (5).

2. A battery cell clamping mechanism according to claim 1, characterized in that: Two symmetrical guard plates (21) are fixedly mounted on the bottom of the bracket (2), two symmetrical round rods (22) are fixedly mounted between the two guard plates (21), sleeves (23) are rotatably sleeved on the round rods (22), and the lower halves of the two clamping assemblies (4) are fixedly connected to the two sleeves (23) respectively.

3. The battery cell clamping mechanism according to claim 1, characterized in that: Each of the clamping components (4) is divided into an upper plate (41) and a lower plate (42); a receiving groove (43) is provided on the top of each of the two upper plates (41); the receiving groove (43) is adapted to the optical axis (1); and an angle formed by the two upper plates (41) is greater than an angle formed by extending and intersecting the two lower plates (42).

4. A battery cell clamping mechanism according to claim 3, characterized in that: The bottoms of the two lower plates (42) are bent toward opposite sides, and a rubber pad is fixedly mounted on the bottom of the lower plates (42).

5. The battery cell clamping mechanism according to claim 1, characterized in that: A mounting assembly (3) is fixedly mounted on the bottom of the optical axis (1); the roller (5) and the suction cup (6) are both fixedly mounted on the mounting assembly (3); and the output end of the suction cup (6) faces downward.

6. A battery cell clamping mechanism according to claim 5, characterized in that: The mounting assembly (3) comprises a mounting plate (31) and a plurality of extension rods (32); the mounting plate (31) is fixedly connected to the bottom of the optical axis (1); the two rollers (5) are respectively fixed to the two sides of the two mounting plates (31); the extension rods (32) are fixedly connected to the mounting plate (31); and the two suction cups (6) are fixed to the bottoms of the plurality of extension rods (32).

7. The battery cell clamping mechanism according to claim 1, characterized in that: The drive assembly comprises: A connecting member (7), wherein the connecting member (7) is fixedly connected to the optical axis (1); Two pulley assemblies (8), the pulley assemblies (8) comprising a fixing rod (81) and an upper shaft rod (82) fixed on the connecting member (7), a lower shaft rod (83) fixed on the top of the bracket (2), a left pulley (84) and a right pulley (85) fixedly mounted on the lower shaft rod (83), an upper pulley (86) fixedly mounted on the upper shaft rod (82), a head end of a pull rope (87) fixed to the fixing rod (81), and a tail end passing through the left pulley (84), the upper pulley (86), and the right pulley (85) in sequence; A driving member is fixed on the connecting member (7), and the driving member is fixedly connected to the tail ends of the two pull ropes (87). The driving member simultaneously pulls the two pull ropes (87) to shorten the distance between the connecting member (7) and the bracket (2), and conversely increases the distance between the connecting member (7) and the bracket (2).

8. A battery cell clamping mechanism according to claim 7, characterized in that: The driving member is a motor, and a winding machine with two mounting grooves is fixedly mounted on the driving end of the motor. The tail ends of the two pull ropes (87) are respectively wound around the two mounting grooves on the winding machine, and the winding directions are the same.

9. The battery cell clamping mechanism according to claim 7, characterized in that: The driving member is a brake handle, and the two pull ropes (87) are fixedly connected to the output end of the brake handle.

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