Pressing device applied to battery

Abstract

The utility model relates to a pressing device applied to a battery, which is simple in structure, small in occupied space and capable of adjusting downward pressure so as to effectively improve the production efficiency and control the production cost. Comprising a base and a pressing clamp assembly, the pressing clamp assembly comprises a bottom plate, a plurality of guiding shafts and a pressing plate, the guiding shafts are vertically arranged on the bottom plate, the pressing plate is assembled above the bottom plate in a sliding mode through the guiding shafts, and the top of each guiding shaft is connected with an adjusting shaft cover through threads; a pressing spring is sleeved on each guide shaft between the adjusting shaft cover and the pressing plate; an assembling groove, a limiting assembly and a jacking air cylinder are arranged on the base, the assembling groove is used for limiting movement of the bottom plate in the horizontal direction, the limiting assembly is used for limiting movement of the bottom plate in the vertical direction, the jacking air cylinder is located below the pressing plate and jacks the pressing plate upwards, and the pressing spring is in a compressed state in the normal state. The utility model is applicable to the field of battery processing technical equipment.

Description

Technical Field

[0001] The utility model relates to the field of battery processing technology equipment, in particular to a pressing device used for batteries. Background Art

[0002] As long as the battery includes a pole piece, a battery shell and a battery cover group, usually, after the pole piece is wound and placed in the battery shell, the battery cover group is pressed into the battery shell, and finally the battery cover group and the battery shell are fixed by welding to complete the packaging of the battery. The traditional battery assembly process is to press the battery cover group and the battery shell together by manual pressing. This labor cost is very high, and the work efficiency and pressing force of different personnel during installation cannot be kept consistent, which seriously affects the efficiency of assembly and the consistency of product pressing, and even has a certain probability of pressing errors, scrapping and other problems. In order to improve production efficiency and accuracy, automatic pressing equipment is now commonly used instead of manual pressing. The automatic pressing equipment generally positions the battery to be pressed and assembled through a limit card seat, and a cylinder with a pressing plate is set just above the card seat. Automatic pressing is controlled by pneumatic control. This equipment occupies a large space and requires a large amount of pneumatic equipment to improve productivity. The cost is too high, and the downward pressure of the pressing equipment cannot be adjusted. If the downward pressure needs to be adjusted, the cylinder must be directly replaced, which further increases the production cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pressing device for batteries which has a simple structure, occupies a small space and can adjust the downward pressure, thereby effectively improving production efficiency and controlling production costs.

[0004] The technical solution adopted by the utility model is: the utility model includes a base and a pressing fixture assembly, the pressing fixture assembly includes a base plate, a plurality of guide shafts and a pressing plate, the plurality of guide shafts are vertically arranged on the base plate, the pressing plate is slidably assembled with the top of the base plate through the plurality of guide shafts, an adjusting shaft cover is threadedly connected to the top of each guide shaft, and a downward pressure spring is sleeved on each guide shaft between the adjusting shaft cover and the pressing plate; an assembly groove, a limit assembly and a lifting cylinder are arranged on the base, the assembly groove is used to limit the movement of the base plate in the horizontal direction, the limit assembly is used to limit the movement of the base plate in the vertical direction, the lifting cylinder is located below the pressing plate, and lifts the pressing plate upward, and the downward pressure spring is in a compressed state under normal conditions.

[0005] Furthermore, the limit assembly includes two groups of short limit blocks and one group of long limit blocks, the two groups of short limit blocks are respectively arranged at the left and right ends of the assembly slot, and the long limit block is arranged at the rear end of the assembly slot, and the inner sides of the short limit blocks and the long limit blocks are both provided with limit grooves that are compatible with the base plate.

[0006] Furthermore, two groups of lifting cylinders are arranged on the base, and the two groups of lifting cylinders are arranged side by side at the short limit blocks located at the left and right ends of the assembly groove, respectively. A detection switch is also arranged in the assembly groove near one end of the long limit block, and the detection switch is electrically connected to the two groups of lifting cylinders.

[0007] Furthermore, a limiting sleeve is provided on each of the guide shafts. The limiting sleeve is located below the pressure plate and is threadedly connected to the guide shaft for adjusting the sliding height of the pressure plate.

[0008] Furthermore, a timer electrically connected to the lifting cylinder is also arranged on the top of the pressing plate.

[0009] Furthermore, a product pouring groove is also provided on the bottom plate, and the opening position of the product pouring groove is consistent with the assembly groove.

[0010] Finally, a shape-keeping clamp is also arranged in the product pouring groove, and the shape-keeping clamp includes an upper cover plate and a lower cover plate that are adapted to each other. A placement cavity adapted to the product is arranged inside the lower cover plate, and a handle is also arranged on the front end surface of the lower cover plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is an improvement on the problems existing in the existing automatic pressing assembly equipment for batteries. Through the cooperation between the pressing fixture assembly and the base, the pressing spring arranged on each of the guide shafts is used to provide a downward pressure for the pressing plate, replacing the original cylinder installed above the equipment, which greatly reduces the occupied space of the equipment; under normal conditions, the lifting cylinder pushes the pressing plate upward, leaving space between the bottom plate and the pressing plate for placing the product. When the product is placed, the lifting cylinder contracts, and the pressing plate moves downward under the action of the pressing spring and presses the product to complete the assembly; in the utility model, the downward pressure of the pressing spring can be fine-tuned by rotating the adjusting shaft cover on each of the guide shafts, or the pressing springs of different specifications can be directly replaced to adjust the downward pressure to meet the pressing force requirements of different products. Therefore, the utility model has a simple structure, occupies a small space, and can adjust the downward pressure, thereby effectively improving production efficiency and controlling production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a structural schematic diagram of the pressing fixture assembly;

[0014] Figure 3 is a front view structural schematic diagram of the pressing fixture assembly;

[0015] Figure 4 is a structural schematic diagram of the base;

[0016] Figure 5 is a schematic diagram of the side structure of the long limit block;

[0017] Figure 6 is a schematic diagram of the side structure of the short limit block;

[0018] Figure 7 Schematic diagram of the exploded structure of the conformal fixture. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 and Figure 4As shown, the utility model includes a base 1 and a pressing fixture assembly 2, the pressing fixture assembly 2 includes a base plate 20, a plurality of guide shafts 21 and a pressing plate 22, the plurality of guide shafts 21 are vertically arranged on the base plate 20, the pressing plate 22 is slidably assembled on the top of the base plate 20 through the plurality of guide shafts 21, an adjusting shaft cover 23 is threadedly connected to the top of each guide shaft 21, and a downward pressure spring 24 is sleeved between the adjusting shaft cover 23 and the pressing plate 22 on each guide shaft 21; an assembly groove 10, a limit assembly and a lifting cylinder 11 are provided on the base 1, the assembly groove 10 is used to limit the movement of the base plate 20 in the horizontal direction, the limit assembly is used to limit the movement of the base plate 20 in the vertical direction, the lifting cylinder 11 is located below the pressing plate 22, and lifts the pressing plate 22 upward, and the downward pressure spring 24 is in a compressed state under normal conditions. In the present invention, through the cooperation between the pressing fixture assembly 2 and the base 1, the downward pressure spring 24 arranged on each of the guide shafts 21 is used to provide a downward pressure for the pressure plate 22, replacing the original cylinder installed above the equipment, which greatly reduces the space occupied by the equipment; under normal circumstances, the lifting cylinder 11 pushes the pressure plate 22 upward, leaving space between the bottom plate 21 and the pressure plate 22 for placing the product. When the product is placed, the lifting cylinder 11 contracts, and the pressure plate 22 moves downward under the action of the downward pressure spring 24 and presses the product to complete the assembly; in the present invention, the downward pressure of the downward pressure spring 24 can be fine-tuned by rotating the adjusting shaft cover 23 on each of the guide shafts 21, or the downward pressure can be adjusted by directly replacing the downward pressure springs 24 of different specifications to meet the pressing force requirements of different products. In the utility model, the base plate 20 and the pressure plate 22 are both square in design, and the four guide shafts 21 are respectively arranged at the four corners of the base plate 20. The left and right ends of the pressure plate 22 are larger than the base plate 20. The lifting cylinder 11 arranged on the base 1 is just below the left and right ends of the pressure plate 22 extending outside the base plate 20.

[0020] like Figure 4 , Figure 5 and Figure 6As shown, in this embodiment, the limiting assembly includes two groups of short limiting blocks 12 and one group of long limiting blocks 13. The two groups of short limiting blocks 12 are respectively arranged at the left and right sides of the assembly slot 10, and the long limiting block 13 is arranged at the rear end of the assembly slot 10. The inner sides of the short limiting blocks 12 and the long limiting blocks 13 are both provided with limiting grooves 14 adapted to the bottom plate 20. The cross section of the limiting groove 14 is "inverted L-shaped", and the size is adapted to the thickness of the bottom plate 20. Therefore, when the bottom plate 20 is pushed into the assembly slot 10, the short limiting blocks 12 and the long limiting blocks 13 cooperate with the assembly slot 10 to limit the pressing fixture assembly 2, so as to prevent the pressing fixture assembly 2 from moving in the horizontal or vertical direction when the lifting cylinder 11 moves the pressing plate 22 in the vertical direction, resulting in errors in product pressing, thereby improving the processing accuracy of the equipment.

[0021] like Figure 2 and Figure 4 As shown, in this embodiment, two groups of the lifting cylinders 11 are arranged on the base 1, and the two groups of the lifting cylinders 11 are arranged side by side at the short limit blocks 12 located at the left and right ends of the assembly slot 10, respectively. A detection switch 15 is also arranged in the assembly slot 10 near one end of the long limit block 13, and the detection switch 15 is electrically connected to the two groups of the lifting cylinders 11. In order to improve the automation setting of the equipment, the detection switch 15 is arranged in the assembly slot 10 of the base 1. When the detection switch 15 detects that a product is placed in the assembly slot 10 and is placed in place, the detection switch 15 triggers and activates the lifting cylinder 11, controls the lifting cylinder 11 to retract, and at this time, the pressure plate 22 moves downward under the action of the downward pressure spring 24 and completes the pressing of the product. In the utility model, the detection switch 15 can be an infrared sensor, a touch switch, a pressure sensor, etc. A timer 26 electrically connected to the lifting cylinder 11 is also provided on the top of the pressing plate 22. The timer 26 is triggered when the detection opening 15 detects that the product is placed in place, and starts timing. The pressing time is input in advance. When the pressing time is completed, the timer 26 activates the lifting cylinder 11 to push upward again and reset the pressing plate 22, and the product can be taken out at this time.

[0022] like Figure 3 As shown, in this embodiment, a limit sleeve 25 is further provided on each guide shaft 21, and the limit sleeve 25 is located below the pressing plate 22 and is threadedly connected to the guide shaft 21, and is used to adjust the sliding height of the pressing plate 22. By rotating and twisting the limit sleeve 25, the limit downward pressing position of the pressing plate 22 is adjusted to prevent the pressing plate 22 from crushing the product, thereby improving the processing accuracy of the equipment.

[0023] like Figure 4 and Figure 7 As shown, in this embodiment, a product pouring groove 27 is also provided on the bottom plate 20, and the opening position of the product pouring groove 27 is consistent with the assembly groove 10. A conformal clamp 3 is also provided in the product pouring groove 27, and the conformal clamp 3 includes an upper cover plate 30 and a lower cover plate 31 that are adapted to each other, a placement cavity 32 adapted to the product is provided inside the lower cover plate 31, and a handle 33 is also provided on the front end surface of the lower cover plate 31. In order to further protect the pressed product and prevent the pressing plate 22 from directly contacting the product, the product can be placed in the conformal clamp 3, and the placement cavity 32 can be designed according to different types of products and replaced by itself before processing; the placement cavity 32 and the lower end surface of the lower cover plate 31 are both provided with a scratch-resistant coating or a scratch-resistant cloth surface to protect the product; the handle 33 facilitates the removal of the conformal clamp 3 from the assembly groove 10, and the opening positions of the product pouring groove 27 and the assembly groove 10 are also chamfered.

[0024] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressing device for a battery, comprising a base (1) and a pressing fixture assembly (2), characterized in that: The pressing fixture assembly (2) comprises a base plate (20), a plurality of guide shafts (21) and a pressing plate (22), wherein the plurality of guide shafts (21) are vertically arranged on the base plate (20), the pressing plate (22) is slidably assembled on the top of the base plate (20) through the plurality of guide shafts (21), an adjusting shaft cover (23) is threadedly connected to the top of each guide shaft (21), and a screw thread is formed on each guide shaft (21) between the adjusting shaft cover (23) and the pressing plate (22). ) are sleeved with a downward pressure spring (24); the base (1) is provided with an assembly groove (10), a limit assembly and a lifting cylinder (11), the assembly groove (10) is used to limit the movement of the base plate (20) in the horizontal direction, the limit assembly is used to limit the movement of the base plate (20) in the vertical direction, the lifting cylinder (11) is located below the pressure plate (22) and lifts the pressure plate (22) upwards, and the downward pressure spring (24) is in a compressed state under normal conditions.

2. A pressing device for a battery according to claim 1, characterized in that: The limiting assembly comprises two groups of short limiting blocks (12) and one group of long limiting blocks (13); the two groups of short limiting blocks (12) are respectively arranged at the left and right sides of the assembly slot (10); the long limiting block (13) is arranged at the rear end of the assembly slot (10); and limiting grooves (14) adapted to the bottom plate (20) are arranged on the inner sides of the short limiting blocks (12) and the long limiting blocks (13).

3. A pressing device for a battery according to claim 2, characterized in that: Two groups of lifting cylinders (11) are arranged on the base (1), and the two groups of lifting cylinders (11) are arranged side by side at the short limit blocks (12) located at the left and right ends of the assembly groove (10). A detection switch (15) is also arranged in the assembly groove (10) near one end of the long limit block (13), and the detection switch (15) is electrically connected to the two groups of lifting cylinders (11).

4. A pressing device for a battery according to claim 3, characterized in that: A limiting sleeve (25) is also provided on each guide shaft (21). The limiting sleeve (25) is located below the pressing plate (22) and is threadedly connected to the guide shaft (21) for adjusting the sliding height of the pressing plate (22).

5. A pressing device for a battery according to claim 4, characterized in that: A timer (26) electrically connected to the lifting cylinder (11) is also provided on the top of the pressing plate (22).

6. A pressing device for a battery according to claim 1, characterized in that: A product pouring groove (27) is also provided on the bottom plate (20), and the opening position of the product pouring groove (27) is consistent with the assembly groove (10).

7. A pressing device for a battery according to claim 6, characterized in that: A shape-keeping fixture (3) is also provided in the product pouring groove (27), and the shape-keeping fixture (3) comprises an upper cover plate (30) and a lower cover plate (31) that are adapted to each other, a placement cavity (32) adapted to the product is provided inside the lower cover plate (31), and a handle (33) is also provided on the front end surface of the lower cover plate (31).

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