Clamping jaw distance adjusting structure

Abstract

The utility model relates to a clamping jaw distance adjusting structure, and belongs to the technical field of battery clamping jaws, the clamping jaw distance adjusting structure comprises a connecting plate and a mounting plate, a floating bearing is connected between the mounting plate and the connecting plate in a floating manner, guide rails are fixedly mounted at the top of the mounting plate, and a sliding frame is mounted on the two guide rails jointly in a sliding manner; and a connecting structure is arranged between the two sliding frames. According to the clamping jaw distance adjusting structure, the arranged lead screw module is matched with the shear type frame to conduct transverse position adjustment on the multiple clamping jaw structures composed of the movable jaws and the fixed jaws, and therefore the distance between the clamping jaws can be rapidly adjusted; a movable claw in a single clamping claw structure is connected with driving equipment through a rolling bearing and a push rod to move, so that interference on normal clamping action can be avoided under the condition of adjusting the distance between the clamping claws, and an electric push rod and a lead screw motor are arranged up and down on a mounting plate, so that space can be reasonably and effectively utilized, light-weight design is realized, and the working efficiency is improved. And the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery clamping jaws, in particular to a clamping jaw spacing adjusting structure. BACKGROUND

[0002] Clamping jaws are commonly used for batch clamping of battery cells, and the design of the clamping jaws can be changed according to different requirements. At present, for the processing and transfer of battery cells, a certain number of battery cells in a cell tray are clamped by clamping jaws.

[0003] The number of cells loaded in the cell tray is not completely the same in each batch. For example, there are cell trays with ten cells in a single row or eleven cells in a single row. Since the sizes of the cells are mostly the same, the width of the cell arrangement in the cell tray changes at this time. Therefore, clamping jaws are needed to adapt to the grabbing of cells with different widths. The current design of the clamping jaws has been difficult to meet the diversified needs. Therefore, the clamping jaw spacing adjusting structure is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the clamping jaw spacing adjusting structure has the advantages that the jaw spacing of the clamping jaws can be adjusted without affecting the normal grabbing process of the clamping jaws.

[0005] To achieve the above purpose, the application provides the following technical scheme: a clamping jaw spacing adjusting structure, comprising a connecting plate and a mounting plate, a floating bearing is floatingly connected between the mounting plate and the connecting plate, a guide rail is fixedly installed on the top of the mounting plate, two sliding racks are commonly slidingly installed on the two guide rails, a connecting structure is arranged between the two sliding racks, a fixed jaw and a movable jaw are movably installed on the sliding rack through the connecting structure;

[0006] The fixed jaw is floatingly connected with the sliding rack through a spring air cylinder, a guide rod is connected between the fixed jaw and the sliding rack on the other side, the movable jaw is slidingly installed on the guide rod, a bearing extending above the sliding rack is also fixedly installed on the guide rod, and adjacent bearings are connected through a shear frame;

[0007] A lead screw module and a servo motor are also fixedly installed on the top of the mounting plate, and the output end of the servo motor is fixedly connected with the lead screw of the lead screw module.

[0008] Further, a bearing rod is connected between the fixed jaw and the movable jaw, and the bearing rod is used for guiding the movement of the fixed jaw and the movable jaw.

[0009] Furthermore, the scissor frame consists of several straight plates arranged in two rows that are hinged together. Each row of straight plates is parallel to each other and together forms a parallelogram structure. Bearing pins extend upward from the four endpoints of the parallelogram structure, and the bearings and the intersections of the scissor frame are rotatably connected to each other.

[0010] Furthermore, the lead screw module has two movable parts outside the lead screw. The two movable parts are symmetrically arranged and fixedly connected to the sliding frame at the end position. The two movable parts are respectively connected to the lead screw by positive thread and negative thread.

[0011] Furthermore, a guide plate is fixedly installed on the top of the mounting plate, and a guide groove is provided through the guide plate. The two bearing pins located in the middle of the scissor frame are slidably connected to the guide groove.

[0012] Furthermore, a driving device is provided below the mounting plate, the driving device including an electric push rod fixedly mounted on the mounting plate and a push rod fixedly connected to the power end of the electric push rod.

[0013] Furthermore, a rolling bearing is rotatably mounted on one side of the movable claw facing the push rod via a mounting base. The rolling bearing rolls against the push rod. A hook is also fixedly mounted on the side of the movable claw, and the hook extends to the side of the push rod.

[0014] Furthermore, a linear guide rail is also installed at the lower end of the mounting plate, and the push rod is slidably connected to the linear guide rail to improve the stability of the push rod's movement. A cylinder for assisting the electric push rod is also provided below the mounting plate.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] This gripper spacing adjustment structure uses a lead screw module in conjunction with a scissor frame to adjust the lateral position of several gripper structures consisting of movable and fixed grippers, thereby enabling rapid adjustment of the gripper spacing. By setting the movable gripper in each individual gripper structure to move via a drive device connected to a rolling bearing and a push rod, the gripper spacing adjustment avoids interference with normal clamping operations. By setting electric push rods and servo motors on the mounting plate, space can be used efficiently, achieving a lightweight design and improving the practicality of the device. Attached Figure Description

[0017] Fig. 1 This is a three-dimensional view of the overall structure of this application;

[0018] Fig. 2 This is a partial three-dimensional structural view of this application;

[0019] Fig. 3 This is a front view of the structure of a single gripper in this application;

[0020] Fig. 4 This is a top view of the mounting plate of this application;

[0021] Fig. 5 This is a top view of the scissor frame structure of this application;

[0022] Fig. 6 This is a three-dimensional view of the electric actuator connecting the actuator of this application.

[0023] In the diagram: 1. Connecting plate; 2. Floating bearing; 3. Mounting plate; 4. Guide rail; 5. Sliding frame; 6. Fixed claw; 7. Movable claw; 8. Guide rod; 9. Bearing; 10. Scissor frame; 11. Bearing rod; 12. Lead screw module; 13. Servo motor; 14. Bearing pin; 15. Guide plate; 16. Guide groove; 17. Electric push rod; 18. Push rod; 19. Cylinder; 20. Linear guide rail; 21. Rolling bearing; 22. Hook. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figs. 1 to 6 The gripper spacing adjustment structure in this embodiment includes a connecting plate 1 and a mounting plate 3. The connecting plate 1 is connected to the end of the robotic arm via a flange to realize the overall movement of the traction gripper. A floating bearing 2 is floatingly connected between the mounting plate 3 and the connecting plate 1.

[0026] This design allows the battery cells clamped under the mounting plate 3 to have a certain floating distance when they are lowered into the tray, preventing the battery cells from directly contacting the tray and causing collisions.

[0027] In this embodiment, a rectangular opening is provided through the top of the mounting plate 3, and guide rails 4 located on both sides of the opening are fixedly installed on the top of the mounting plate 3. A sliding frame 5 is slidably installed on the two guide rails 4, and a connecting structure is provided between the two sliding frames 5. A fixed claw 6 and a movable claw 7 are movably installed on the sliding frame 5 through the connecting structure.

[0028] Furthermore, the fixed claw 6 is floatingly connected to the sliding frame 5 via a nitrogen spring, and a guide rod 8 is connected between the fixed claw 6 and the sliding frame 5 on the other side, with the movable claw 7 slidably mounted on the guide rod 8.

[0029] The movable claw 7 is connected to the guide rod 8, so that the movable claw 7 can move closer to the fixed claw 6 to complete the clamping action.

[0030] The fixed claw 6 of the floating connection has a certain amount of room to move, and there are also small tolerances between different battery cells in order to accommodate them.

[0031] It should be noted that a bearing rod 11 is also connected between the fixed claw 6 and the movable claw 7. The bearing rod 11 is used to guide the movement of the fixed claw 6 and the movable claw 7, and to distribute the stress on the fixed claw 6 and the movable claw 7, so as to avoid excessive local stress on the fixed claw 6 or the movable claw 7, which would damage the guide component.

[0032] In this embodiment, a bearing 9 extending above the sliding frame 5 is also fixedly installed on the guide rod 8, and adjacent bearings 9 are connected by a scissor frame 10.

[0033] Preferably, the scissor frame 10 consists of several straight plates arranged in two rows that are hinged together. Each row of straight plates is parallel to each other and together forms a parallelogram structure. Bearing pins 14 extend upward from the four ends of the parallelogram structure. The intersections of the bearings 9 and the scissor frame 10 are rotatably connected to each other.

[0034] In the specific implementation process, it is only necessary to open the scissor frame 10 to both sides. At this time, the several parallelogram structures that make up the scissor frame 10 extend to both sides, thereby driving the sliding frame 5 to slide relative to the guide rail 4 and change the distance through the bearing 9.

[0035] In order to drive the sliding frame 5 connected to the scissor frame 10, in this embodiment, a lead screw module 12 and a servo motor 13 are also fixedly installed on the top of the mounting plate 3. The output end of the lead screw motor 13 is fixedly connected to the lead screw of the lead screw module 12, and the movement of the lead screw module 12 can be controlled by the servo motor 13.

[0036] Preferably, the lead screw module 12 has two movable parts outside the lead screw. The two movable parts are symmetrically arranged and fixedly connected to the sliding frame 5 at the end position. The two movable parts are respectively connected to the lead screw by positive thread and negative thread, so that the two movable parts of the lead screw module 12 can be controlled by the lead screw motor 13 to move in opposite directions.

[0037] It should be noted that a guide plate 15 is also fixedly installed on the top of the mounting plate 3. A guide groove 16 is provided through the guide plate 15, and two bearing pins 14 located in the middle of the scissor frame 10 are slidably connected to the guide groove 16.

[0038] This design allows the scissor frame 10 to be centered on the mounting plate 3, preventing it from shifting during spacing adjustments.

[0039] In order to drive the movable claw 7 to complete the clamping action, a driving device is provided below the mounting plate 3 in this embodiment. The driving device includes an electric push rod 17 fixedly mounted on the mounting plate 3 and a push rod 18 fixedly connected to the power end of the electric push rod 17.

[0040] Furthermore, a rolling bearing 21 is rotatably mounted on the side of the movable claw 7 facing the push rod 18 via a mounting base. The rolling bearing 21 rolls against the push rod 18, thereby facilitating the adjustment of the claw spacing.

[0041] In this embodiment, a hook 22 is also fixedly installed on the side of the movable claw 7. The hook 22 extends to the side of the push rod 18. The hook 22 is hooked onto the push rod 18, so that when the push rod 18 retracts with the electric push rod 17, it can drive several movable claws 7 to retract.

[0042] It should be noted that a linear guide rail 20 and a push rod 18 are slidably connected to the linear guide rail 20 at the lower end of the mounting plate 3 for the stability of the movement of the position push rod 18, and a cylinder 19 for assisting the electric push rod 17 is also provided below the mounting plate 3.

[0043] The working principle of the above embodiments is as follows:

[0044] When the spacing between battery cells needs to be changed in a single clamping operation, the servo motor 13 is controlled first. The servo motor 13 drives the connected lead screw module 12 to change position. At this time, the lead screw module 12 drives the sliding frames 5 on both sides to slide relative to the guide rail 4. The adjacent sliding frames 5 are connected by continuously arranged bearings 9 and scissor frames 10 to achieve synchronous adjustment of the spacing. During the adjustment process, the movable claws 7 located between the sliding frames 5 change position by sliding against the push rod 18 through the rolling bearings 21 installed on the side. Then, the push rod 18 is moved by the electric push rod 17, so that the push rod 18 can squeeze several movable claws 7 to move towards the fixed claw 6 at the same time to complete the clamping action after the spacing adjustment.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gripper spacing adjustment structure, comprising a connecting plate (1) and a mounting plate (3), characterized in that: A floating bearing (2) is floatingly connected between the mounting plate (3) and the connecting plate (1). A guide rail (4) is fixedly installed on the top of the mounting plate (3). A sliding frame (5) is slidably installed on both guide rails (4). A connecting structure is provided between the two sliding frames (5). A fixed claw (6) and a movable claw (7) are movably installed on the sliding frame (5) through the connecting structure. The fixed claw (6) is floatingly connected to the sliding frame (5) via a nitrogen spring. A guide rod (8) is connected between the fixed claw (6) and the sliding frame (5) on the other side. The movable claw (7) is slidably mounted on the guide rod (8). A bearing (9) extending above the sliding frame (5) is also fixedly mounted on the guide rod (8). Adjacent bearings (9) are connected by a scissor bracket (10). The top of the mounting plate (3) is also fixedly mounted with a lead screw module (12) and a servo motor (13), and the output end of the servo motor (13) is fixedly connected to the lead screw of the lead screw module (12).

2. The gripper spacing adjustment structure according to claim 1, characterized in that: A support rod (11) is also connected between the fixed claw (6) and the movable claw (7), and the support rod (11) is used to guide the movement of the fixed claw (6) and the movable claw (7).

3. The gripper spacing adjustment structure according to claim 1, characterized in that: The scissor frame (10) consists of several straight plates that are hinged together in two columns. Each column of straight plates is parallel to each other and together form a parallelogram structure. Bearing pins (14) extend upward at the four endpoints of the parallelogram structure. The intersection of the bearing (9) and the scissor frame (10) is rotatably connected to each other.

4. The gripper spacing adjustment structure according to claim 1, characterized in that: The lead screw module (12) has two movable parts outside the lead screw. The two movable parts are symmetrically arranged and fixedly connected to the sliding frame (5) at the end position. The two movable parts are respectively connected to the lead screw by positive thread and negative thread.

5. The gripper spacing adjustment structure according to claim 3, characterized in that: A guide plate (15) is also fixedly installed on the top of the mounting plate (3). A guide groove (16) is provided through the guide plate (15). The two bearing pins (14) located in the middle of the scissor frame (10) are slidably connected to the guide groove (16).

6. The gripper spacing adjustment structure according to claim 1, characterized in that: A drive device is provided below the mounting plate (3). The drive device includes an electric push rod (17) fixedly mounted on the mounting plate (3) and a push rod (18) fixedly connected to the power end of the electric push rod (17).

7. The gripper spacing adjustment structure according to claim 6, characterized in that: The movable claw (7) is rotatably mounted with a rolling bearing (21) on one side facing the push rod (18) via a mounting seat. The rolling bearing (21) rolls against the push rod (18). A hook (22) is also fixedly mounted on the side of the movable claw (7), and the hook (22) extends to the side of the push rod (18).

8. The gripper spacing adjustment structure according to claim 7, characterized in that: The lower end of the mounting plate (3) is also equipped with a linear guide rail (20). The push rod (18) is slidably connected to the linear guide rail (20) for the stability of the movement of the push rod (18). A cylinder (19) for assisting the electric push rod (17) is also provided below the mounting plate (3).

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