Sucker assembly, grabbing device and battery production equipment

Abstract

The utility model relates to the technical field of battery production, and discloses a sucking disc assembly, a grabbing device and battery production equipment, the sucking disc assembly comprises a sucking disc main body and a support, the sucking disc main body is installed on the support, the bottom of the sucking disc main body is provided with an adsorption hole, and the adsorption hole is configured to adsorb an object to be adsorbed under negative pressure. The surface of the top of the suction cup body is a curved surface, so that the flow speed of airflow passing through the curved surface is larger than that of airflow passing through the bottom of the suction cup body, and therefore the to-be-adsorbed object is further made to be tightly attached to the bottom of the suction cup body through the generated pressure intensity difference. The folding of the to-be-adsorbed object caused by end sagging during movement is avoided, the technical problem that the product quality is affected by folding of the to-be-adsorbed object in the prior art is solved, and the technical effects that the to-be-adsorbed object is not prone to folding, and the product quality is guaranteed are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a suction cup assembly, a grasping device and battery production equipment. Background Art

[0002] In the lithium battery manufacturing process, from the formation of positive and negative electrode materials to the formation of the basic structure of the battery cell, there are currently two mainstream production methods on the market, namely winding and lamination; both manufacturing processes involve physical damage to the electrode sheets.

[0003] In the related art, when the robot grasps the suction cup to adsorb the electrode, there is a phenomenon of insufficient vacuum or unstable adsorption pressure. The airflow generated by the high-speed movement of the robot grasping the suction cup will disturb the electrode, causing the end of the electrode to sag. In the process of transporting the electrode material to the stacking table, the drooping end of the electrode may easily hit the equipment to form debris, or the electrode may be folded when it is stacked into the stacking table, causing damage to the electrode and affecting the quality of the product. Utility Model Content

[0004] The utility model aims to provide a suction cup assembly, a gripping device and battery production equipment, so as to solve the technical problem in the prior art that the folding of pole pieces affects the product quality.

[0005] In order to solve the above technical problems, the utility model provides a suction cup assembly, including a suction cup body and a bracket, wherein the suction cup body is installed on the bracket, and an adsorption hole is provided at the bottom of the suction cup body, and the adsorption hole is configured to negatively pressure adsorb the object to be adsorbed, and the top surface of the suction cup body is a curved surface, so that the air flow rate passing through the curved surface is greater than the air flow rate passing through the bottom of the suction cup body.

[0006] In an optional embodiment, the curved surface includes a first curved surface and a second curved surface with a smooth transition, and along the conveying direction of the object to be adsorbed, the distance between the first curved surface and the bottom of the suction cup body gradually increases, and the distance between the second curved surface and the bottom of the suction cup body gradually decreases.

[0007] In an optional embodiment, the length of the projection of the first curved surface on the horizontal plane is greater than the length of the projection of the second curved surface on the horizontal plane.

[0008] In an optional embodiment, the suction cup body includes a first adsorption portion and a second adsorption portion located on at least one side of the first adsorption portion, the first adsorption portion is configured to adsorb the middle portion of the object to be adsorbed, the second adsorption portion is configured to adsorb the edge portion of the object to be adsorbed, and the top surface of the first adsorption portion includes the first curved surface and the second curved surface.

[0009] In an optional embodiment, the curved surface also includes a third curved surface and a fourth curved surface with a smooth transition, the third curved surface and the fourth curved surface are formed on the top surface of the second adsorption portion, the third curved surface is arranged parallel to the first curved surface, and the fourth curved surface is arranged parallel to the second curved surface.

[0010] In an optional embodiment, an adsorption chamber is provided in the suction cup body, the adsorption chamber is communicated with the adsorption hole, and the adsorption chamber applies negative pressure to the object to be adsorbed through the adsorption hole to adsorb the object to be adsorbed.

[0011] In an optional embodiment, the bracket includes a connecting column and a connecting plate;

[0012] The connecting column is passed through the connecting plate, the connecting column is connected to the curved surface, the connecting plate and the curved surface are arranged at intervals, and a hole for a negative pressure tube to pass through is provided on the connecting plate, and the negative pressure tube passes through the curved surface and is connected to the adsorption chamber.

[0013] In an optional embodiment, a mounting piece is provided on the connecting plate, the mounting piece is installed on the connecting column, and the negative pressure tube passes through the mounting piece and the connecting plate in sequence.

[0014] The utility model also provides a grasping device, comprising the suction cup assembly.

[0015] The utility model also provides a battery production device, comprising the grabbing device.

[0016] The utility model provides a suction cup assembly, including a suction cup body and a bracket, the suction cup body is installed on the bracket, and the bottom of the suction cup body is provided with an adsorption hole, the adsorption hole is configured to negatively adsorb the object to be adsorbed, so that the object to be adsorbed is tightly attached to the bottom of the suction cup body through negative pressure, the top surface of the suction cup body is a curved surface, so that the air flow rate passing through the curved surface is greater than the air flow rate passing through the bottom of the suction cup body, thereby further making the object to be adsorbed tightly attached to the bottom of the suction cup body through the generated pressure difference, avoiding the end of the object to be adsorbed from drooping when moving and causing folding, solving the technical problem of the folding of the object to be adsorbed affecting the product quality in the prior art, and achieving the technical effect that the object to be adsorbed is not easy to fold and the product quality is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the suction cup assembly mentioned in the embodiment of the utility model;

[0018] Figure 2 It is a side view of the suction cup assembly mentioned in the embodiment of the utility model;

[0019] Figure 3It is a top view of the suction cup assembly mentioned in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the spoiler structure of the suction cup body mentioned in the embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of another spoiler structure of the suction cup body mentioned in the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the partial structure of the suction cup body mentioned in the embodiment of the utility model.

[0023] In the figure, 1-suction cup body; 2-adsorption hole; 3-first curved surface; 4-second curved surface; 5-third curved surface; 6-fourth curved surface; 7-first adsorption part; 8-second adsorption part; 9-connecting column; 10-connecting plate; 11-negative pressure tube; 12-mounting part. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the related art, when the positive and negative electrode sheets are stacked, the robot grasps the suction cup and moves to adsorb the electrode sheets, which may easily lead to insufficient vacuum in the suction cup or unstable adsorption pressure. The airflow generated by the high-speed movement of the robot grasping the suction cup will disturb the electrode sheet, causing the end of the electrode sheet to sag. In the process of transporting the electrode sheet material to the stacking table, the drooping end of the electrode sheet may easily hit the equipment to form debris, or the electrode sheet may be folded when it is stacked into the stacking table, causing damage to the electrode sheet and affecting the quality of the product.

[0027] In view of this, if Figure 1-Figure 6 As shown, some embodiments of the utility model provide a suction cup assembly, including a suction cup body 1 and a bracket, the suction cup body 1 is installed on the bracket, and an adsorption hole 2 is provided at the bottom of the suction cup body 1, the adsorption hole 2 is configured to negatively adsorb the object to be adsorbed, and the top surface of the suction cup body 1 is a curved surface, so that the air flow rate passing through the curved surface is greater than the air flow rate passing through the bottom of the suction cup body 1.

[0028] In the above embodiment, the suction cup body 1 can be welded to the bracket, and the suction cup body 1 and the bracket can both be made of metal. The opposite ends of the suction cup body 1 are respectively provided with adsorption holes 2 and curved surfaces, wherein the end of the suction cup body 1 close to the battery to be assembled is provided with adsorption holes 2, and multiple adsorption holes 2 can be provided. Multiple adsorption holes 2 can be provided on the plane of the bottom end of the suction cup body 1, and multiple adsorption holes 2 are spaced and evenly arranged along the surface of the suction cup body 1, so that the suction cup body 1 can apply negative pressure to the object to be adsorbed through the multiple adsorption holes 2, thereby taking the object to be adsorbed by the negative pressure. The suction cup body 1 is started up, and then the bracket drives the suction cup body 1 to move. At this time, the air flow blows toward the suction cup body 1 and passes through the upper and lower ends of the suction cup body 1. Since a curved surface is provided on the top of the suction cup body 1, the air flow velocity through the curved surface is greater than the flow velocity through the bottom plane, thereby generating a pressure difference according to the Bernoulli principle. Under the action of the pressure difference, the object to be adsorbed is further pressed against the bottom of the suction cup body 1, thereby preventing the edge of the object to be adsorbed from easily warping and sagging during the movement of the suction cup body 1 driven by the bracket, thereby damaging the object to be adsorbed by touching other parts, and making the object to be adsorbed firmly attached to the bottom of the suction cup body 1.

[0029] Optionally, the object to be adsorbed may be a positive or negative electrode, and the suction cup body 1 carries the electrode for stacking.

[0030] Some embodiments of the present invention provide a suction cup assembly, including a suction cup body 1 and a bracket. The pressure difference generated further makes the object to be adsorbed close to the bottom of the suction cup body 1, so as to avoid the end of the object to be adsorbed from drooping and folding when moving, thereby solving the technical problem of the folding of the object to be adsorbed affecting the product quality in the prior art, and achieving the technical effect that the object to be adsorbed is not easy to fold and the product quality is guaranteed.

[0031] In an optional embodiment, the curved surface includes a first curved surface 3 and a second curved surface 4 with a smooth transition. Along the conveying direction of the object to be adsorbed, the distance between the first curved surface 3 and the bottom of the suction cup body 1 gradually increases, and the distance between the second curved surface 4 and the bottom of the suction cup body 1 gradually decreases.

[0032] In the above embodiment, the first curved surface 3 and the second curved surface 4 are connected and smoothly transitioned to make the airflow pass more smoothly and the airflow flow rate is faster. In the conveying direction of the object to be adsorbed, that is, in the direction of sending it to the laying position after grabbing the electrode piece, the distance between the first curved surface 3 and the bottom of the suction cup body 1 gradually increases, and the distance between the second curved surface 4 and the bottom of the suction cup body 1 gradually decreases, so that when the suction cup body 1 moves, the airflow first contacts the second curved surface 4 and the height of the airflow becomes higher, and then contacts the first curved surface 3, and then the height of the airflow becomes lower, thereby increasing the flow path of the airflow and the flow rate of the airflow flowing through the first curved surface 3 and the second curved surface 4. The bottom of the suction cup body 1 and the object to be adsorbed are both planar, so that the flow rate of the airflow at the bottom is less than the flow rate of the airflow flowing through the first curved surface 3 and the second curved surface 4, thereby generating a pressure difference, which will form an upward lifting force, so that the object to be adsorbed is better attached to the bottom of the suction cup body 1.

[0033] Optionally, the end of the first curved surface 3 away from the second curved surface 4 can be arranged at the bottom of the suction cup body 1, and the end of the second curved surface 4 away from the first curved surface 3 can be arranged at the bottom of the suction cup body 1, so that the end of the first curved surface 3 and the end of the second curved surface 4 are both pointed ends, which more effectively reduces the resistance of the airflow. At the same time, the end of the first curved surface 3 away from the second curved surface 4 can be spaced apart from the bottom of the suction cup body 1, and the end of the second curved surface 4 away from the first curved surface 3 can be spaced apart from the bottom of the suction cup body 1, so that the first curved surface 3 and the second curved surface 4 have a higher height. Exemplarily, the connection between the first curved surface 3 and the second curved surface 4 is 49 mm away from the bottom of the suction cup body 1, and the end of the first curved surface 3 away from the second curved surface 4 is 31 mm away from the bottom of the suction cup body 1.

[0034] In an optional embodiment, the length of the projection of the first curved surface 3 on the horizontal plane is greater than the length of the projection of the second curved surface 4 on the horizontal plane.

[0035] In the above embodiment, the projection length of the first curved surface 3 on the horizontal plane is greater than the projection length of the second curved surface 4 on the horizontal plane, and the cross-sectional shapes of the first curved surface 3 and the second curved surface 4 can be: in the projection of a freely falling water droplet, the shape of half of the water droplet separated along the axis of symmetry is obtained by rotating 90 degrees clockwise, so that the moving first curved surface 3 and the second curved surface 4 can minimize the resistance to the airflow.

[0036] In an optional embodiment, the suction cup body 1 includes a first adsorption portion 7 and a second adsorption portion 8 located on at least one side of the first adsorption portion 7, the first curved surface 3 and the second curved surface 4 are formed on the top surface of the first adsorption portion 7, the first adsorption portion 7 is configured to adsorb the middle part of the object to be adsorbed, and the second adsorption portion 8 is configured to adsorb the edge part of the object to be adsorbed.

[0037] In the above embodiment, the area of ​​the first adsorption portion 7 is larger than that of the second adsorption portion 8. Along the conveying direction of the object to be adsorbed, the size of the first adsorption portion 7 is larger than that of the second adsorption portion 8. The bottom of the first adsorption portion 7 is rectangular, and the bottom of the second adsorption portion 8 is also rectangular. Along the length direction of the first adsorption portion 7, the second adsorption portion 8 is arranged on the end face of the first adsorption portion 7, and the bottoms of the first adsorption portion 7 and the second adsorption portion 8 are arranged flush. The first adsorption portion 7 is mainly used to adsorb the electrode piece position, and the second adsorption portion 8 is mainly used to adsorb the electrode ear position. The first curved surface 3 and the second curved surface 4 are both arranged on the first adsorption portion 7, and along the length direction of the first adsorption portion 7, the height of the first curved surface 3 or the height of the second curved surface 4 is consistent.

[0038] Optionally, one or two second adsorption portions 8 may be provided, and the two second adsorption portions 8 are respectively provided at two ends of the first adsorption portion 7 .

[0039] In an optional embodiment, the curved surface also includes a third curved surface 5 and a fourth curved surface 6 with a smooth transition. The third curved surface 5 and the fourth curved surface 6 are formed on the top surface of the second adsorption portion 8. The third curved surface 5 is arranged parallel to the first curved surface 3, and the fourth curved surface 6 is arranged parallel to the second curved surface 4.

[0040] In the above embodiment, the third curved surface 5 and the fourth curved surface 6 are located at the end of the second adsorption portion 8 away from the bottom, the height of the third curved surface 5 is less than the height of the first curved surface 3, and the height of the fourth curved surface 6 is less than the height of the second curved surface 4, that is, the height of the third curved surface 5 from the bottom of the second adsorption portion 8 is less than the height of the first curved surface 3 from the bottom of the first adsorption portion 7 at the same position, the height of the fourth curved surface 6 from the bottom of the second adsorption portion 8 is less than the height of the second curved surface 4 from the bottom of the first adsorption portion 7 at the same position, and the shape of the third curved surface 5 and the fourth curved surface 6 after being connected is consistent with the shape of the first curved surface 3 and the second curved surface 4 after being connected, so that the third curved surface 5 and the fourth curved surface 6 can also reduce air resistance when transporting the object to be adsorbed.

[0041] In an optional embodiment, an adsorption chamber is provided in the suction cup body 1, and the adsorption chamber is connected to each adsorption hole 2 and an external negative pressure generating device (such as a vacuum pump, etc.), and the sizes of the multiple adsorption holes 2 are consistent so that the suction forces of the multiple adsorption holes 2 are set consistently, and negative pressure is applied to the object to be adsorbed through the external negative pressure generating device, the adsorption chamber and the adsorption holes 2 to adsorb the object to be adsorbed.

[0042] Optionally, the adsorption chamber can be configured as a accommodating chamber for accommodating a negative pressure production device, and the negative pressure production device is arranged on the inner wall of the adsorption chamber away from the adsorption hole 2. The negative pressure production device can be connected to each adsorption hole 2 through multiple pipes, so that each adsorption hole 2 can generate negative pressure and adsorb the object to be adsorbed, thereby fixing the object to be adsorbed.

[0043] In an optional embodiment, the bracket includes a connecting column 9 and a connecting plate 10; the connecting column 9 is passed through the connecting plate 10, the connecting column 9 is connected to the curved surface, the connecting plate 10 is arranged at an interval with the curved surface, and a hole for a negative pressure tube 11 to pass through is provided on the connecting plate 10, the negative pressure tube 11 passes through the curved surface and is connected to the adsorption chamber, so that the negative pressure tube 11 can apply negative pressure to the adsorption chamber.

[0044] In the above embodiment, the connecting plate 10 is rectangular, the connecting column 9 can be cylindrical, four connecting columns 9 can be provided, the four connecting columns 9 respectively pass through the connecting plate 10 and are connected to the connecting plate 10, and the four connecting columns 9 can be provided with threads, the four connecting columns 9 can be fixed to the connecting plate 10 by nuts respectively, the four connecting columns 9 are arranged in a matrix, the four connecting columns 9 are arranged perpendicular to the bottom of the suction cup body 1, the four connecting columns 9 are respectively connected to the curved surface, and the connecting plate 10 and the curved surface are arranged at intervals so that the airflow can pass through the gap between the connecting plate 10 and the curved surface. Furthermore, the connecting plate 10 is provided with a hole for the negative pressure tube 11 to pass through. After passing through the connecting plate 10, the negative pressure tube 11 is directly connected to the curved surface and passes through the curved surface to communicate with the internal adsorption chamber, so that the negative pressure tube 11 can apply negative pressure to the adsorption chamber and adsorb the object to be adsorbed through multiple adsorption holes 2.

[0045] Optionally, the four connecting columns 9 may be symmetrically arranged in pairs along the center line of the first adsorption portion 7 , so that the first adsorption portion 7 is more firmly fixed by the four connecting columns 9 .

[0046] In an optional embodiment, a mounting member 12 is provided on the connecting plate 10 , the mounting member 12 is installed on the connecting column 9 , and the negative pressure tube 11 passes through the mounting member 12 and the connecting plate 10 in sequence.

[0047] In the above embodiment, the mounting member 12 can be in the shape of a long strip, and the mounting member 12 can be arranged on the side of the connecting plate 10 away from the curved surface. Two mounting members 12 can be provided, and each mounting member 12 is extended along the length direction of the first adsorption portion 7. Each mounting member 12 can be connected to two connecting columns 9 respectively, so that the two mounting members 12 can be arranged parallel to each other, and a negative pressure tube 11 can be fixed on the mounting member 12, and a negative pressure tube 11 can be fixed on each mounting member 12, so that the two mounting members 12 can fix two negative pressure tubes 11 respectively, and negative pressure is applied to the adsorption chamber by the two negative pressure tubes 11, so that the negative pressure in the adsorption chamber can be made more balanced, so that the adsorption of the adsorbent is more stable.

[0048] Some embodiments of the utility model further provide a gripping device, comprising a suction cup assembly.

[0049] In the above embodiment, the grasping device may include a manipulator and a negative pressure machine, and a through hole is provided at the center position of the connecting plate 10. The manipulator can be connected to the through hole on the connecting plate 10 so that the manipulator can drive the suction cup body 1 to move through the connecting plate 10, and the negative pressure machine can be connected to the adsorption chamber through multiple negative pressure tubes 11, so that the negative pressure machine can apply negative pressure to the adsorption chamber, and the adsorption chamber can apply negative pressure to the object to be adsorbed through multiple adsorption holes 2 to fix the object to be adsorbed.

[0050] Some embodiments of the present invention further provide a battery production device, including a gripping device.

[0051] In the above embodiment, the battery production equipment may further include a slide rail for the movement of the manipulator, the slide rail may be set to a straight shape, and a slidably connected manipulator is provided on the slide rail, the manipulator can control the suction cup body 1 downward and close to the object to be adsorbed at a first position, and then, after pressurizing and adsorbing the object to be adsorbed by the negative pressure machine, the manipulator can lift the suction cup body 1, and then the manipulator can move in the conveying direction of the object to be adsorbed, that is, the manipulator moves to the stacking position of the pole piece through the slide rail, and when moving, the pressure difference generated by the airflow passing through the curved surface and the bottom of the suction cup body 1 presses the object to be adsorbed, and fixes the object to be adsorbed with the cooperation of the negative pressure machine, so that the object to be adsorbed is more stable.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A suction cup assembly, characterized in that: The invention comprises a suction cup body (1) and a bracket, wherein the suction cup body (1) is mounted on the bracket, and a suction hole (2) is provided at the bottom of the suction cup body (1), wherein the suction hole (2) is configured to negatively adsorb an object to be adsorbed, and the top surface of the suction cup body (1) is a curved surface, so that the air flow rate passing through the curved surface is greater than the air flow rate passing through the bottom of the suction cup body (1).

2. The suction cup assembly according to claim 1, characterized in that: The curved surface comprises a first curved surface (3) and a second curved surface (4) with a smooth transition, and along the conveying direction of the object to be adsorbed, the distance between the first curved surface (3) and the bottom of the suction cup body (1) gradually increases, and the distance between the second curved surface (4) and the bottom of the suction cup body (1) gradually decreases.

3. The suction cup assembly according to claim 2, characterized in that: The length of the projection of the first curved surface (3) on the horizontal plane is greater than the length of the projection of the second curved surface (4) on the horizontal plane.

4. The suction cup assembly according to claim 2, characterized in that: The suction cup body (1) comprises a first adsorption portion (7) and a second adsorption portion (8) located at least on one side of the first adsorption portion (7), the first adsorption portion (7) being configured to adsorb the middle portion of the object to be adsorbed, the second adsorption portion (8) being configured to adsorb the edge portion of the object to be adsorbed, and the top surface of the first adsorption portion (7) comprising the first curved surface (3) and the second curved surface (4).

5. The suction cup assembly according to claim 4, characterized in that: The curved surface also includes a third curved surface (5) and a fourth curved surface (6) with a smooth transition, wherein the third curved surface (5) and the fourth curved surface (6) are formed on the top surface of the second adsorption portion (8), the third curved surface (5) is arranged parallel to the first curved surface (3), and the fourth curved surface (6) is arranged parallel to the second curved surface (4).

6. The suction cup assembly according to claim 1, characterized in that: An adsorption chamber is arranged in the suction cup body (1), the adsorption chamber is communicated with the adsorption hole (2), and the adsorption chamber applies negative pressure to the object to be adsorbed through the adsorption hole (2) to adsorb the object to be adsorbed.

7. The suction cup assembly according to claim 6, characterized in that: The bracket comprises a connecting column (9) and a connecting plate (10); The connecting column (9) is passed through the connecting plate (10), the connecting column (9) is connected to the curved surface, the connecting plate (10) and the curved surface are arranged at intervals, and the connecting plate (10) is provided with a hole for a negative pressure tube (11) to pass through, and the negative pressure tube (11) passes through the curved surface and is connected to the adsorption chamber.

8. The suction cup assembly according to claim 7, characterized in that: The connecting plate (10) is provided with a mounting member (12), the mounting member (12) is installed on the connecting column (9), and the negative pressure tube (11) is sequentially passed through the mounting member (12) and the connecting plate (10).

9. A gripping device, characterized in that: Comprising the suction cup assembly as described in any one of claims 1-8.

10. A battery production device, characterized in that: Comprising a gripping device as claimed in claim 9.

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