Stamping device and stamping equipment for forming battery restraining plate

Abstract

The utility model provides a stamping device and stamping equipment for forming a battery restraining plate. The stamping device used for forming the battery restraining plate comprises an upper module, a lower module, an upper punch, a lower punch and a convex hull extrusion punch, the upper module and the lower module are oppositely arranged, the upper punch is installed in the upper module, the end face of the upper punch is arranged on the upper module in a protruding mode, the lower punch is installed in the lower module, and the convex hull extrusion punch is arranged on the end face of the lower punch. The convex hull extrusion punch is installed in the upper die set, the end face of the convex hull extrusion punch is arranged on the upper die set in a protruding mode, the convex hull extrusion punch is located on the peripheral side of the upper punch and connected with the upper punch, the lower punch is provided with a containing groove and a convex hull cavity, the containing groove is used for containing materials, and the convex hull cavity is used for containing the materials. The containing groove is communicated with the convex hull cavity, and the convex hull cavity and the convex hull extrusion punch are correspondingly arranged. And the convex hulls are formed by punching the materials once without multiple times of punching, so that the production efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of stamping devices, and in particular to a stamping device and stamping equipment for forming a battery restraint plate. Background Art

[0002] During the assembly of the battery module, a pressure strip or a boss is usually provided at the outer periphery of the battery module, so that when the battery module is assembled, the restraining shell of the battery module is locked and fixed on the tray or frame using fasteners to install the battery module on the tray or frame. However, the pressure strip and the boss occupy a large space, which is not conducive to improving the energy density of the battery module.

[0003] In order to solve the above problems, the Chinese patent application number CN202320647661.8 discloses a battery module and its restraint plate, restraint housing, battery, power consumption and energy storage device. The restraint plate has a first surface and a second surface relative to each other. The second surface is used as the inner wall of the battery cell accommodating cavity. The first surface is provided with at least one plug-in portion, which is used to plug and match with the restraint plate on another battery module. The above battery module is connected by a plurality of restraint plates to fix the battery module, that is, there is no need to set a mounting structure such as a pressure strip or a boss, so as to avoid wasting space and assemble more battery cells.

[0004] The restraint plate is generally made of aluminum alloy, which has a certain structural strength and good heat dissipation performance. The restraint plate is formed by stamping the aluminum alloy block using a stamping device. However, for example Figure 1 The screw hole structure of the restraint plate shown is convex, so that the screw hole structure is relatively high. However, the stamping device in the prior art cannot stamp out the convex structure in one time, that is, it needs to be stamped multiple times, which leads to the problem of low production efficiency.

[0005] Therefore, there is an urgent need for a stamping device that can perform one-time stamping and improve production efficiency. Utility Model Content

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a stamping device and stamping equipment for forming a battery restraint plate that can be stamped and formed in one step and improve production efficiency.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A punching device for forming a battery restraint plate, comprising:

[0009] An upper die set, a lower die set, an upper punch and a lower punch, wherein the upper die set and the lower die set are arranged opposite to each other, the upper punch is installed in the upper die set, and the end surface of the upper punch is convexly arranged on the upper die set, and the lower punch is installed in the lower die set.

[0010] The stamping device also includes a convex bulge extrusion punch, which is installed in the upper die group, and the end face of the convex bulge extrusion punch is convexly arranged on the upper die group. The convex bulge extrusion punch is located on the peripheral side of the upper punch and is connected to the upper punch. The lower punch is respectively provided with a receiving groove and a convex bulge cavity, the receiving groove is used to receive materials, the receiving groove is communicated with the convex bulge cavity, and the convex bulge cavity is arranged corresponding to the convex bulge extrusion punch.

[0011] In one embodiment, an end surface of the convex hull extrusion punch adjacent to the lower punch is arc-shaped.

[0012] In one embodiment, the depth of the convex cavity is 3mm-4mm.

[0013] In one of the embodiments, there are multiple convex bulge extrusion punches, and there are multiple convex bulge cavities. The multiple convex bulge extrusion punches are evenly distributed on the circumference of the upper punch, and the multiple convex bulge extrusion punches are arranged in one-to-one correspondence with the corresponding convex bulge cavities.

[0014] In one of the embodiments, a mounting groove is provided on the peripheral side of the upper punch, and the convex extrusion punch is located in the mounting groove and connected to the upper punch.

[0015] In one of the embodiments, a step portion is protrudingly provided on the surface of the lower punch.

[0016] In one embodiment, the upper mold group includes a first upper mold group, a second upper mold group and a third upper mold group connected in sequence, the third upper mold group is arranged adjacent to the lower mold group, the second upper mold group is provided with a first avoidance groove, the third upper mold group is provided with a second avoidance groove, the first avoidance groove is communicated with the second avoidance groove, the upper punch passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper mold group, and the convex bulge extrusion punch passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper mold group.

[0017] In one embodiment, the lower mold assembly includes a first lower mold, a second lower mold and a third lower mold connected in sequence, the third lower mold is arranged adjacent to the upper mold assembly, the third lower mold is provided with a third avoidance groove, and the lower punch passes through the third avoidance groove and is connected to the second lower mold.

[0018] In one embodiment, the end surface of the lower punch is flush with the end surface of the third lower mold plate.

[0019] A stamping device comprises the stamping device for forming a battery restraint plate as described in any of the above embodiments.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] The above-mentioned stamping device for forming the battery restraint plate, the upper punch and the convex bulge extrusion punch are both installed in the upper die group, the lower punch is installed in the lower die group, the lower punch is respectively provided with a connected receiving groove and a convex bulge cavity, the convex bulge cavity and the convex bulge extrusion punch are arranged opposite to each other, when the material is placed in the receiving groove, the upper punch and the convex bulge extrusion punch press down to extrude the material, the convex bulge extrusion punch squeezes part of the material into the convex bulge cavity, so that a convex bulge is formed on one side of the material, and the upper punch and the lower punch extrude the material synchronously, so that the material can be stamped and formed in one time, that is, there is no need for multiple stampings, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A physical diagram of a battery restraint plate according to an embodiment;

[0024] Figure 2 A schematic structural diagram of a punching device for forming a battery restraint plate according to an embodiment;

[0025] Figure 3 for Figure 2 Another schematic diagram of the structure of the punching device for forming the battery restraint plate shown;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of the upper punch and the convex extrusion punch of the punching device shown;

[0027] Figure 5 for Figure 2 Another structural schematic diagram of a punching device for forming a battery restraint plate is shown;

[0028] Figure 6 for Figure 2 A schematic structural diagram of the lower punch of the stamping device is shown. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The present disclosure provides a stamping device for forming a battery restraint plate, comprising an upper die group, a lower die group, an upper punch and a lower punch, the upper die group and the lower die group are arranged relatively to each other, the upper punch is installed in the upper die group, and the end face of the upper punch is convexly arranged on the upper die group, the lower punch is installed in the lower die group, the stamping device also includes a convex bulge extrusion punch, the convex bulge extrusion punch is installed in the upper die group, the end face of the convex bulge extrusion punch is convexly arranged on the upper die group, the convex bulge extrusion punch is located on the peripheral side of the upper punch and connected to the upper punch, the lower punch is respectively provided with a receiving groove and a convex bulge cavity, the receiving groove is used to receive materials, the receiving groove is communicated with the convex bulge cavity, and the convex bulge cavity is arranged corresponding to the convex bulge extrusion punch.

[0033] The above-mentioned stamping device for forming the battery restraint plate, the upper punch and the convex bulge extrusion punch are both installed in the upper die group, the lower punch is installed in the lower die group, the lower punch is respectively provided with a connected receiving groove and a convex bulge cavity, the convex bulge cavity and the convex bulge extrusion punch are arranged opposite to each other, when the material is placed in the receiving groove, the upper punch and the convex bulge extrusion punch press down to extrude the material, the convex bulge extrusion punch squeezes part of the material into the convex bulge cavity, so that a convex bulge is formed on one side of the material, and the upper punch and the lower punch extrude the material synchronously, so that the material can be stamped and formed in one time, that is, there is no need for multiple stampings, thereby improving production efficiency.

[0034] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0035] like Figures 2 to 5 As shown, a stamping device 10 for forming a battery restraint plate according to one embodiment includes an upper die set 100, a lower die set 200, an upper punch 300, a convex extrusion punch 400 and a lower punch 500. The upper die set 100 and the lower die set 200 are arranged relative to each other, that is, the upper die set 100 and the lower die set 200 can be molded toward each other, the upper punch 300 is installed in the upper die set 100, and the end face of the upper punch 300 is convexly arranged on the upper die set 100, and the lower punch 500 is installed in the lower die set 200.

[0036] Furthermore, the convex bulge extrusion punch 400 is installed in the upper mold group 100, and the end face of the convex bulge extrusion punch 400 is convexly arranged on the upper mold group 100. The convex bulge extrusion punch 400 is located on the peripheral side of the upper punch 300 and is connected to the upper punch 300. The lower punch 500 is respectively provided with a receiving groove 510 and a convex bulge cavity 520. The receiving groove 510 is used to receive materials. The receiving groove 510 is communicated with the convex bulge cavity 520. The convex bulge cavity 520 is arranged corresponding to the convex bulge extrusion punch 400, so that part of the material can be squeezed into the convex bulge cavity 520 when the convex bulge extrusion punch 400 is pressed downward.

[0037] In this embodiment, the upper die set 100 is connected to the driving device so that the upper die set 100 moves toward the lower die set 200, and the material (aluminum block) is placed in the receiving groove 510. When the upper die set 100 abuts against the lower die set 200, the upper punch 300 presses the material against the lower punch 500, that is, the upper punch 300 and the lower punch 500 punch the material. Synchronously, the convex bulge extrusion punch 400 squeezes part of the material into the convex bulge cavity 520, so that a convex bulge is formed on one side of the material. In this way, with the cooperation of the upper punch 300, the convex bulge extrusion punch 400 and the lower punch 500, the material is stamped and formed once, and a convex bulge is formed on one side, that is, there is no need to go through multiple stamping steps, thereby improving production efficiency.

[0038] The above-mentioned stamping device 10 for forming a battery restraint plate, the upper punch 300 and the convex bulge extrusion punch 400 are both installed in the upper die group 100, and the lower punch 500 is installed in the lower die group 200. The lower punch 500 is respectively provided with a connected receiving groove 510 and a convex bulge cavity 520, and the convex bulge cavity 520 is arranged opposite to the convex bulge extrusion punch 400. When the material is placed in the receiving groove 510, the upper punch 300 and the convex bulge extrusion punch 400 press down to extrude the material, and the convex bulge extrusion punch 400 squeezes part of the material into the convex bulge cavity 520, so that a convex bulge is formed on one side of the material, and the upper punch 300 and the lower punch 500 extrude the material synchronously, so that the material can be stamped and formed at one time, that is, there is no need for multiple stampings, thereby improving production efficiency.

[0039] like Figure 4 As shown, in one embodiment, the end surface of the convex hull extrusion punch 400 adjacent to the lower punch 500 is arc-shaped. It can be understood that the convex hull extrusion punch 400 extrudes the material so that the material forms an arc-shaped groove structure on one side close to the convex hull extrusion punch 400, and the material forms a convex hull on the side away from the convex hull extrusion punch 400.

[0040] In one embodiment, the depth of the convex cavity 520 is 3mm-4mm. In this embodiment, the depth of the convex cavity 520 is 4mm, that is, the material forms a convex cavity with a depth of 4mm under the joint action of the convex extrusion punch 400 and the lower punch 500.

[0041] like Figure 4 and Figure 6 As shown, in one embodiment, the number of the convex hull extrusion punches 400 is multiple, the number of the convex hull cavities 520 is multiple, and the multiple convex hull extrusion punches 400 are evenly distributed on the peripheral side of the upper punch 300, and the multiple convex hull extrusion punches 400 are arranged in one-to-one correspondence with the corresponding convex hull cavities 520. In this embodiment, the number of the convex hull extrusion punches 400 is 4, and the number of the convex hull cavities 520 is also 4. The four convex hull extrusion punches 400 are respectively distributed on both sides of the upper punch 300, and the convex hull extrusion punches 400 are arranged in one-to-one correspondence with the convex hull cavities 520, so that four convex hulls are formed on one side of the material.

[0042] like Figure 4 As shown, in one embodiment, a mounting groove 310 is opened on the peripheral side of the upper punch 300, and the convex extrusion punch 400 is located in the mounting groove 310 and connected to the upper punch 300, so that the upper punch 300 and the convex extrusion punch 400 are fixed, thereby further improving the structural strength of the upper punch 300 and the convex extrusion punch 400.

[0043] like Figure 6As shown, in one embodiment, the surface of the lower punch 500 is provided with a step portion 530. It can be understood that when the material is squeezed by the upper punch 300 and the lower punch 500, a groove is formed on the material surface corresponding to the step portion 530, and the groove is used to place the battery cell.

[0044] like Figure 3 As shown, in one embodiment, the upper mold group 100 includes a first upper mold plate 110, a second upper mold plate 120 and a third upper mold plate 130 which are connected in sequence, the third upper mold plate 130 is arranged adjacent to the lower mold group 200, the second upper mold plate 120 is provided with a first avoidance groove, the third upper mold plate 130 is provided with a second avoidance groove, the first avoidance groove is communicated with the second avoidance groove, the upper punch 300 passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper mold plate 110, the convex bulge extrusion punch 400 passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper mold plate 110. It can be understood that the upper punch 300 is located in the first avoidance groove and the second avoidance groove, that is, the upper punch 300 is covered by the second upper template 120 and the third upper template 130. Similarly, the convex bulge extrusion punch 400 is also covered by the second upper template 120 and the third upper template 130. This makes the structural strength of the upper punch 300 and the convex bulge extrusion punch 400 higher.

[0045] like Figure 5 As shown, in one embodiment, the lower die set 200 includes a first lower die plate 210, a second lower die plate 220 and a third lower die plate 230 connected in sequence, the third lower die plate 230 is arranged adjacent to the upper die set 100, the third lower die plate 230 is provided with a third avoidance groove, and the lower punch 500 passes through the third avoidance groove and is connected to the second lower die plate 220. It can be understood that the lower punch 500 is located in the third avoidance groove, that is, the lower punch 500 is covered by the third lower die plate 230, which improves the structural strength of the lower punch 500.

[0046] like Figure 5 As shown, in one embodiment, the end surface of the lower punch 500 is flush with the end surface of the third lower mold plate 230 to make the structure of the lower mold assembly 200 more flat.

[0047] The present application also provides a stamping device, including the stamping device 10 for forming a battery restraint plate as described in any of the above embodiments.

[0048] Compared with the prior art, the present invention has at least the following advantages:

[0049] The above-mentioned stamping device 10 for forming a battery restraint plate, the upper punch 300 and the convex bulge extrusion punch 400 are both installed in the upper die group 100, and the lower punch 500 is installed in the lower die group 200. The lower punch 500 is respectively provided with a connected receiving groove 510 and a convex bulge cavity 520, and the convex bulge cavity 520 is arranged opposite to the convex bulge extrusion punch 400. When the material is placed in the receiving groove 510, the upper punch 300 and the convex bulge extrusion punch 400 press down to extrude the material, and the convex bulge extrusion punch 400 squeezes part of the material into the convex bulge cavity 520, so that a convex bulge is formed on one side of the material, and the upper punch 300 and the lower punch 500 extrude the material synchronously, so that the material can be stamped and formed at one time, that is, there is no need for multiple stampings, thereby improving production efficiency.

[0050] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A punching device for forming a battery restraint plate, comprising an upper die set, a lower die set, an upper punch and a lower punch, wherein the upper die set and the lower die set are arranged opposite to each other, the upper punch is installed in the upper die set, and the end surface of the upper punch is convexly arranged on the upper die set, and the lower punch is installed in the lower die set, characterized in that: The stamping device also includes a convex bulge extrusion punch, which is installed in the upper die group, and the end face of the convex bulge extrusion punch is convexly arranged on the upper die group. The convex bulge extrusion punch is located on the peripheral side of the upper punch and is connected to the upper punch. The lower punch is respectively provided with a receiving groove and a convex bulge cavity, the receiving groove is used to receive materials, the receiving groove is communicated with the convex bulge cavity, and the convex bulge cavity is arranged corresponding to the convex bulge extrusion punch.

2. The punching device for forming a battery restraint plate according to claim 1, characterized in that: An end surface of the convex hull extrusion punch adjacent to the lower punch is in an arc shape.

3. The punching device for forming a battery restraint plate according to claim 1, characterized in that: The depth of the convex cavity is 3mm-4mm.

4. The punching device for forming a battery restraint plate according to claim 1, characterized in that: There are multiple convex hull extrusion punches, and there are multiple convex hull cavities. The multiple convex hull extrusion punches are evenly distributed around the upper punch, and the multiple convex hull extrusion punches are arranged in one-to-one correspondence with the corresponding convex hull cavities.

5. The punching device for forming a battery restraint plate according to claim 1, characterized in that: A mounting groove is provided on the peripheral side of the upper punch, and the convex extrusion punch is located in the mounting groove and connected to the upper punch.

6. The punching device for forming a battery restraint plate according to claim 1, characterized in that: A step portion is protrudingly provided on the surface of the lower punch.

7. The punching device for forming a battery restraint plate according to claim 1, characterized in that: The upper die group includes a first upper die, a second upper die and a third upper die connected in sequence, the third upper die is arranged adjacent to the lower die group, the second upper die is provided with a first avoidance groove, the third upper die is provided with a second avoidance groove, the first avoidance groove is communicated with the second avoidance groove, the upper punch passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper die, the convex bulge extrusion punch passes through the first avoidance groove and the second avoidance groove in sequence and then is connected to the first upper die.

8. The punching device for forming a battery restraint plate according to claim 1, characterized in that: The lower die set includes a first lower die set, a second lower die set and a third lower die set which are connected in sequence. The third lower die set is arranged adjacent to the upper die set. The third lower die set is provided with a third avoidance groove. The lower punch passes through the third avoidance groove and is connected to the second lower die set.

9. The punching device for forming a battery restraint plate according to claim 8, characterized in that: The end surface of the lower punch is flush with the end surface of the third lower mold plate.

10. A stamping device, characterized in that: A punching device for forming a battery restraint plate comprising any one of claims 1 to 9.

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