Tightening device for box cover of battery module

Abstract

The utility model belongs to the technical field of battery module box machining, and particularly relates to a battery module box cover tightening device which comprises a base, a machining table is arranged at the top of the base, three mounting tables are arranged on the side face of the machining table, and a collaborative robot is mounted at the tops of the three mounting tables. A motor is started to drive a two-way lead screw to rotate, so that two threaded connection blocks in threaded connection with the outer wall of the two-way lead screw can move oppositely along a guide rod, a box cover tightening gun and a distance measuring instrument are installed at one end of the collaborative robot, and a control table is arranged at one end of the machining table. And at the moment, the connecting plates at the tops of the two threaded connecting blocks can move in opposite directions together until the two clamping plates clamp and fix the two ends of the battery module box placed on the machining table, and therefore the situation that the battery module box cover deviates when being screwed down is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery module box processing, and in particular relates to a battery module box cover tightening device. Background Art

[0002] The design and application of the battery module box cover tightening device is of great significance to improving the assembly efficiency, safety and traceability of the power battery system. By controlling multiple collaborative robots, the box cover tightening gun tightens the battery module box cover on the processing table.

[0003] At present, when using the existing battery module box cover tightening device, the battery module is usually placed on the workbench first, and multiple collaborative robot manipulators cooperate with the 2D area array camera and the rangefinder to guide the tightening gun to tighten the box cover. However, the battery module box placed on the workbench is not well fixed, and therefore may be offset during the tightening process of the tightening gun, so that the 2D area array camera and the rangefinder may need to be recalculated and repositioned, resulting in a decrease in the overall efficiency of the battery module box cover tightening device. Utility Model Content

[0004] The utility model aims to provide a battery module box cover tightening device, aiming to solve the problem that in the use of the existing battery module box cover tightening device, the battery module is usually placed on a workbench first, and a plurality of collaborative robot manipulators cooperate with a 2D array camera and a rangefinder to guide a tightening gun to tighten the box cover. However, the battery module box placed on the workbench cannot be well fixed, and therefore may be offset during the tightening process of the tightening gun, so that the 2D array camera and the rangefinder may need to be recalculated and repositioned, thereby reducing the overall efficiency of the battery module box cover tightening device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery module box cover tightening device, comprising a base, a processing table is arranged on the top of the base, three mounting tables are arranged on the side of the processing table, a collaborative robot is installed on the top of the three mounting tables, a box cover tightening gun and a rangefinder are installed at one end of the collaborative robot, and a control console is arranged at one end of the processing table;

[0006] A motor is installed at one end of the processing table, and a bidirectional screw is connected to the output end of the motor. The outer wall of the bidirectional screw is threadedly connected to two threaded connecting blocks. A guide rod is arranged inside the processing table, and two connecting plates are arranged on the top of the processing table.

[0007] As a preferred embodiment of the battery module box cover tightening device of the utility model, one end of the bidirectional screw rod forms a rotation connection structure with the processing table through a bearing.

[0008] As a preferred embodiment of the battery module box cover tightening device of the utility model, the ends of the two threaded connection blocks are sleeved on the outer wall of the guide rod.

[0009] As a preferred battery module box cover tightening device of the utility model, an opening is provided on the top of the base, and the two connecting plates are respectively connected to a threaded connecting block through the opening on the top of the base.

[0010] As a preferred battery module box cover tightening device of the utility model, a connecting rod is passed through the surfaces of the two connecting plates, the two ends of the connecting rod are respectively connected to a limiting block and a clamping plate, and the outer wall of the connecting rod is sleeved with a spring.

[0011] As a preferred battery module box cover tightening device of the utility model, the clamping plate can form an elastic structure with the connecting plate through a connecting rod, a limit block and a spring.

[0012] As a preferred embodiment of the battery module box cover tightening device of the utility model, a rubber pad is bonded to the surface of the clamping plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By starting the motor to drive the bidirectional screw to rotate, the two threaded connection blocks threadedly connected to the outer wall can move toward each other along the guide rod. At this time, the connecting plates on the top of the two threaded connection blocks will move toward each other together until the two clamps clamp and fix the two ends of the battery module box placed on the processing table, thereby avoiding the occurrence of offset when the battery module box cover is tightened.

[0015] Through the elastic structure between the clamping plate and the connecting plate, when the two clamping plates clamp the battery module box, the clamping plate will squeeze the spring to shrink it, thereby playing a buffering role during clamping to avoid excessive clamping force, and by setting the rubber pad, the outer shell wear caused by the clamping plate clamping the battery module box can be further avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the A enlarged structure of the utility model.

[0021] In the figure: 1. Base; 2. Processing table; 3. Mounting table; 4. Collaborative robot; 5. Box cover tightening gun; 6. Rangefinder; 7. Control console; 8. Motor; 9. Bidirectional screw; 10. Threaded connection block; 11. Guide rod; 12. Connecting plate; 13. Connecting rod; 14. Limit block; 15. Clamp; 16. Spring; 17. Rubber pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides the following technical solutions: a battery module box cover tightening device, comprising a base 1, a processing table 2 is arranged on the top of the base 1, three mounting tables 3 are arranged on the side of the processing table 2, a collaborative robot 4 is installed on the top of the three mounting tables 3, a box cover tightening gun 5 and a rangefinder 6 are installed at one end of the collaborative robot 4, and a control console 7 is arranged at one end of the processing table 2;

[0024] Among them, the model of the collaborative robot 4 is E10L-Pro, the model of the rangefinder 6 can be SW-M50A; the model of the box cover tightening gun 5 can be: QST62-150CT, and the model of the console 7 is RT09-031;

[0025] It should be noted that the torque range of the box cover tightening gun 5 needs to be changed and used according to the actual situation;

[0026] A motor 8 is installed at one end of the processing table 2, and a bidirectional screw 9 is connected to the output end of the motor 8. The outer wall of the bidirectional screw 9 is threadedly connected to two threaded connection blocks 10. A guide rod 11 is arranged inside the processing table 2, and two connecting plates 12 are arranged on the top of the processing table 2.

[0027] It should be noted that an electric telescopic rod is installed inside the base 1, and the output end of the electric telescopic rod is connected to the processing table 2, so as to realize the lifting and lowering of the processing table 2, and the electric telescopic rod, the collaborative robot 4, the box cover tightening gun 5, the rangefinder 6 and the wiring terminals of the motor 8 are all connected to the console 7, and are connected to an external power supply;

[0028] What is more noteworthy is that the three collaborative robots 4 respectively drive three 2D area array cameras fixed on both sides of the bolt tightening station to maintain the detection object distance. The collaborative robot 4 drives the 2D area array camera to move to both sides of the battery module box cover in turn, and takes pictures of the threaded holes on the upper surface of the battery module box cover in turn to record the position data. Finally, the box cover tightening gun 5 tightens the box cover.

[0029] Preferably: one end of the bidirectional screw 9 forms a rotating connection structure with the processing table 2 through a bearing, the ends of the two threaded connection blocks 10 are sleeved on the outer wall of the guide rod 11, an opening is opened at the top of the base 1, and the two connecting plates 12 are respectively connected to a threaded connection block 10 through the top opening of the base 1.

[0030] When in use, the bidirectional screw 9 is driven to rotate by starting the motor 8, so that the two threaded connection blocks 10 connected by the thread on the outer wall can move toward each other along the guide rod 11, and the connection plates 12 on the top of the two threaded connection blocks 10 will move toward each other together until the two clamping plates 15 clamp and fix the two ends of the battery module box placed on the processing table 2;

[0031] On the contrary, by starting the motor 8 to drive the bidirectional screw 9 to rotate in the opposite direction, the connecting plates 12 at the tops of the two threaded connecting blocks 10 can drive the clamping plates 15 to move in opposite directions, so that the two clamping plates 15 stop clamping the battery module box.

[0032] Preferably: a connecting rod 13 passes through the surfaces of the two connecting plates 12, and the two ends of the connecting rod 13 are respectively connected to a limit block 14 and a clamping plate 15, a spring 16 is sleeved on the outer wall of the connecting rod 13, and a rubber pad 17 is bonded to the surface of the clamping plate 15. The clamping plate 15 can form an elastic structure with the connecting plate 12 through the connecting rod 13, the limit block 14 and the spring 16.

[0033] During specific use, through the elastic structure between the clamping plate 15 and the connecting plate 12, when the two clamping plates 15 clamp the battery module box, the clamping plate 15 will squeeze the spring 16 to shrink it, thereby playing a buffering role during clamping to avoid excessive clamping force, and through the setting of the rubber pad 17, the outer shell wear caused by the clamping plate 15 clamping the battery module box can be further avoided.

[0034] Working principle: First, place the battery module box on the processing table 2, and start the motor 8 to drive the bidirectional screw 9 to rotate, so that the two threaded connection blocks 10 threadedly connected to the outer wall can move toward each other along the guide rod 11. At this time, the connecting plates 12 on the top of the two threaded connection blocks 10 will move toward each other together until the two clamps 15 clamp and fix the two ends of the battery module box placed on the processing table 2. During the clamping period, through the elastic structure between the clamp 15 and the connecting plate 12, the clamp 15 will squeeze the spring 16 to shrink it, thereby playing a buffering role during clamping to avoid excessive clamping force, and through the setting of the rubber pad 17, the outer shell wear caused by the clamp 15 clamping the battery module box can be further avoided. At this time, the three collaborative robots 4 can be controlled by the control console 7 to operate, so that the box cover tightening gun 5 at its end can tighten the battery module box cover.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery module box cover tightening device, comprising a base (1), characterized in that: A processing table (2) is arranged on the top of the base (1), three mounting tables (3) are arranged on the side of the processing table (2), a collaborative robot (4) is installed on the top of the three mounting tables (3), a box cover tightening gun (5) and a rangefinder (6) are installed on one end of the collaborative robot (4), and a control console (7) is arranged on one end of the processing table (2); A motor (8) is installed at one end of the processing table (2), the output end of the motor (8) is connected to a bidirectional screw rod (9), the outer wall of the bidirectional screw rod (9) is threadedly connected to two threaded connection blocks (10), a guide rod (11) is arranged inside the processing table (2), and two connection plates (12) are arranged on the top of the processing table (2).

2. A battery module box cover tightening device according to claim 1, characterized in that: One end of the bidirectional screw rod (9) forms a rotation connection structure with the processing table (2) via a bearing.

3. The battery module box cover tightening device according to claim 1, characterized in that: The ends of the two threaded connection blocks (10) are sleeved on the outer wall of the guide rod (11).

4. A battery module box cover tightening device according to claim 1, characterized in that: The top of the base (1) is provided with an opening, and the two connecting plates (12) are respectively connected to a threaded connecting block (10) through the top opening of the base (1).

5. The battery module box cover tightening device according to claim 1, characterized in that: A connecting rod (13) penetrates the surfaces of the two connecting plates (12), two ends of the connecting rod (13) are respectively connected to a limit block (14) and a clamping plate (15), and a spring (16) is sleeved on the outer wall of the connecting rod (13).

6. A battery module box cover tightening device according to claim 5, characterized in that: The clamping plate (15) can form an elastic structure with the connecting plate (12) through a connecting rod (13), a limiting block (14) and a spring (16).

7. A battery module box cover tightening device according to claim 5, characterized in that: A rubber pad (17) is bonded to the surface of the clamping plate (15).

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