Multi-station riveting die

Abstract

The utility model relates to energy storage equipment manufacturing and processing technical field especially relates to a kind of multi-station riveting die, for the riveting pressure of pole on battery cover plate, multi-station riveting die includes lower die seat and upper die seat.M has the placement station on lower die seat, M battery cover plate is respectively located at M placement station, each placement station is provided with a positioning structure, positioning structure is used to prevent battery cover plate from moving relative to placement station, M is the positive integer greater than 1.Upper die seat includes M punch, M punch respectively riveting pressure the pole of battery cover plate located at M placement station.Through the setting M placement station of lower die seat, upper die seat once presses down can utilize M punch to riveting pressure the pole of M battery cover plate, relative to prior art, riveting time can be greatly shortened, processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment manufacturing and processing technology, and in particular to a multi-station riveting mold. Background Technology

[0002] The battery cover includes a top cover and terminals. The terminals are fixed to the top cover by riveting. Current technology involves placing the top cover with the terminals on a riveting die, and a punch deforms the end of the terminal, causing the material at the end to expand outwards, forming a riveted protrusion. This protrusion restricts the terminal's movement relative to the top cover towards the battery interior. However, existing riveting dies can only process one terminal at a time, requiring two stamping cycles to complete a battery cover, resulting in low processing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-station riveting mold that can improve processing efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A multi-station riveting die is provided for riveting terminals on a battery cover plate. The multi-station riveting die includes:

[0006] The lower mold base has M placement stations, and the M battery cover plates are respectively located at the M placement stations. Each placement station is provided with a positioning structure to prevent the battery cover plate from moving relative to the placement station. M is a positive integer greater than 1.

[0007] The upper mold base includes M punches, which respectively rivet the terminals of the battery cover plate located at the M placement stations.

[0008] Optionally, the positioning structure includes a pressing component, the bottom surface of the battery cover contacts the placement station, and the pressing component is capable of pressing against the top surface and / or side surface of the battery cover.

[0009] Optionally, the pressing component includes a sliding seat and a sliding insert. The sliding insert is used to press against the top surface of the battery cover. The sliding insert can move relative to the sliding seat in a vertical direction within a first preset range. When the sliding insert moves relative to the sliding seat to the lowest position of the first preset range, the sliding insert presses against the top surface of the battery cover.

[0010] Optionally, the upper mold base is provided with a first clamping member, which can press against the sliding insert as the upper mold base moves downward, so that the sliding insert moves relative to the sliding seat to the lowest position.

[0011] Optionally, the pressing component further includes a first elastic element that tends to move the sliding insert relative to the sliding seat to the highest position of the first preset range.

[0012] Optionally, the top surface of the sliding seat has a first groove extending vertically, and the side wall of the first groove has a second groove extending vertically in a first direction. The sliding insert has a first limiting part extending vertically, which is inserted into the first groove. The side wall of the first limiting part has a limiting protrusion protruding along the first direction, which is inserted into the second groove. The size of the limiting protrusion is smaller than the size of the bottom of the second groove, and the first direction is the horizontal direction.

[0013] Optionally, the bottom surface of the first limiting part is connected to a second limiting part, and a third groove is opened at the bottom of the first groove, with the second limiting part located in the third groove;

[0014] The first elastic element is a first spring, which is sleeved on the second limiting part, and / or, one end of the first elastic element abuts against the bottom end face of the first limiting part, and the other end of the first elastic element abuts against the bottom of the third groove.

[0015] Optionally, the pressing component includes a sliding seat, the lower mold base has a limiting groove, the sliding seat is movably disposed in the limiting groove along a first direction, the first direction is perpendicular to the side of the battery cover, and the sliding seat can press against the side of the battery cover.

[0016] Optionally, the sliding seat has a first inclined surface, and the upper mold seat is provided with a second clamping member. The second clamping member can move down with the upper mold seat to press against the first inclined surface, so that the sliding seat can move along the first direction to press against the side of the battery cover.

[0017] And / or, the pressing assembly further includes a second elastic element that tends to move the sliding seat away from the side of the battery cover.

[0018] Optionally, one of the positioning structures includes two sets of the pressing components, the sliding seats of the two sets of the pressing components being capable of pressing against two opposite sides of the battery cover, and each set of the pressing components includes at least one pressing component.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a multi-station riveting mold for riveting terminals on battery cover plates. The multi-station riveting mold includes a lower mold base and an upper mold base. The lower mold base has M placement stations, where M battery cover plates are located. Each placement station has a positioning structure to prevent the battery cover plate from moving relative to the placement station. M is a positive integer greater than 1. The upper mold base includes M punches, which rivet the terminals of the battery cover plates located at the M placement stations. By setting M placement stations on the lower mold base, the upper mold base can rivet the terminals of the M battery cover plates using the M punches in a single press. Compared with the prior art, the riveting time can be greatly shortened, and the processing efficiency is improved. Attached Figure Description

[0021] Figure 1 This is a first-view structural schematic diagram of the multi-station riveting mold provided in this embodiment of the utility model;

[0022] Figure 2 This is a second-view structural schematic diagram of the multi-station riveting mold provided in this embodiment of the utility model;

[0023] Figure 3 This is a third-view structural schematic diagram of the multi-station riveting mold (upper and lower mold bases in closed state) provided in this embodiment of the utility model;

[0024] Figure 4 yes Figure 3 Sectional view of AA;

[0025] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0026] Figure 6 yes Figure 3 BB section view.

[0027] In the picture:

[0028] 1. Lower mold base; 11. Placement station; 12. Pressing assembly; 121. Sliding seat; 1211. First inclined surface; 1212. Pressing protrusion; 122. Sliding insert; 1221. First limiting part; 1222. Limiting protrusion; 1223. Second limiting part; 123. First elastic element; 124. Second elastic element;

[0029] 2. Upper die base; 21. First clamping component; 22. Second clamping component; 221. Second inclined surface; 23. Punch;

[0030] 800, Battery cover; 801, Terminal post; 802, Riveting block. Detailed Implementation

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of them.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The battery cover includes a top cover and terminals. The terminals are fixed to the top cover by riveting. Current technology involves placing the top cover with the terminals on a riveting die, and a punch deforms the end of the terminal, causing the material at the end to expand outwards, forming a riveted protrusion. This protrusion restricts the terminal's movement relative to the top cover towards the battery interior. However, existing riveting dies can only process one terminal at a time, requiring two stamping cycles to complete a battery cover, resulting in low processing efficiency.

[0035] Therefore, this embodiment provides a multi-station riveting mold to solve the above problems, which can improve processing efficiency.

[0036] like Figures 1-6As shown, the multi-station riveting mold of this embodiment is used to rivet the terminal posts 801 on the battery cover plate 800. The multi-station riveting mold includes a lower mold base 1 and an upper mold base 2. The lower mold base 1 has M placement stations 11, and the M battery cover plates 800 are respectively located at the M placement stations 11. Each placement station 11 is provided with a positioning structure to prevent the battery cover plate 800 from moving relative to the placement station 11. M is a positive integer greater than 1. The upper mold base 2 includes M punches 23, which respectively rivet the terminal posts 801 of the battery cover plates 800 located at the M placement stations 11. The riveting deformation of the terminal post 801 forms a limit between it and the riveting block 802.

[0037] By setting M placement stations 11 in the lower mold base 1, the upper mold base 2 can use M punches 23 to rivet the pole posts 801 of M battery cover plates 800 in one press. Compared with the existing technology, the riveting time can be greatly shortened and the processing efficiency can be improved.

[0038] Optionally, in this embodiment, the value of M is 2, meaning that the multi-station riveting mold has two placement stations 11, which can complete the riveting process of one end post 801 of two battery cover plates 800 in one go. Compared with a single-station mold, the efficiency can be improved by nearly half. Of course, in other embodiments, the value of M can also be 3, 4, 5 or other larger positive integers to further improve processing efficiency.

[0039] Optionally, the positioning structure includes a pressing component 12. Optionally, the battery cover 800 is placed flat on the placement station 11, the bottom surface of the battery cover 800 contacts the placement station 11, and the pressing component 12 can press against the top surface and / or side surface of the battery cover 800.

[0040] Optionally, a positioning structure includes two sets of pressing components 12. The sliding seats 121 of the two sets of pressing components 12 can press against the two opposite sides of the battery cover 800 respectively. Each set of pressing components 12 includes at least one pressing component 12. That is, two sets of pressing components 12 are provided at a placement station 11, which can fix and limit the positions of the two sides of the top surface of the battery cover 800 and the two sides of the battery cover 800 at the placement station 11, so as to ensure that the battery cover 800 does not shift, thus preparing for the subsequent precise riveting of the terminal post 801.

[0041] like Figures 4-6 As shown, optionally, each set of pressing components 12 includes a sliding seat 121 and a sliding insert 122. The sliding insert 122 is used to press against the top surface of the battery cover 800, and the sliding seat 121 is used to press against the side surface of the battery cover 800. Figure 4As shown, direction ab is the first direction, direction cd is the vertical direction, and the width direction of battery cover 800 is parallel to direction ab. In this embodiment, battery cover 800 is placed horizontally on placement station 11, sliding insert 122 can move vertically to press against the top surface of battery cover 800, and sliding seat 121 can move along the first direction to press against the side of battery cover 800.

[0042] Optionally, the sliding insert 122 can move vertically within a first preset range relative to the sliding base 121. The first preset range is a distance of relative height and has a highest position and a lowest position. The vertical movement of the sliding insert 122 relative to the sliding base 121 is limited to a certain height range, and the sliding insert 122 cannot detach from the sliding base 121. When the sliding insert 122 moves to the lowest position of the first preset range relative to the sliding base 121, the sliding insert 122 presses against the top surface of the battery cover 800.

[0043] Optionally, the upper mold base 2 is provided with a first pressing member 21. The first pressing member 21 can press against the sliding insert 122 as the upper mold base 2 moves down, so that the sliding insert 122 moves to the lowest position relative to the sliding base 121. The sliding insert 122 presses against the top surface of the battery cover 800 by the downward pressing of the first pressing member 21.

[0044] To enable the sliding insert 122 to automatically spring open and detach from the battery cover 800 after riveting, the pressing assembly 12 may optionally include a first elastic element 123. The first elastic element 123 has a tendency to move the sliding insert 122 relative to the sliding seat 121 to the highest position within a first preset range. When the first pressing member 21 presses down to contact the sliding insert 122, it resists the elastic force of the first elastic element 123, causing the sliding insert 122 to move downward. When the first pressing member 21 moves upward and detaches from the sliding insert 122, the first elastic element 123 applies an elastic force to the sliding insert 122, causing the sliding insert 122 to move upward and detach from the top surface of the battery cover 800.

[0045] In order for the slider 122 to move within a first preset range, such as Figure 5As shown, optionally, the top surface of the sliding seat 121 has a first groove extending vertically, and the sidewall of the first groove has a second groove extending vertically in a first direction. Optionally, in this embodiment, the first groove has second grooves on both opposite sidewalls along the first direction. The sliding insert 122 has a first limiting portion 1221 extending vertically, which is inserted into the first groove. The sidewall of the first limiting portion 1221 has a limiting protrusion 1222 protruding along the first direction, which is inserted into the second groove. Optionally, the first limiting portion 1221 has limiting protrusions 1222 protruding on both opposite sidewalls along the first direction, and the two limiting protrusions 1222 are respectively inserted into the two second grooves. Furthermore, the size of the limiting protrusion 1222 is smaller than the size of the bottom of the second groove in the vertical direction, so that the limiting protrusion 1222 can move a certain distance in the vertical direction within the second groove. When the limiting protrusion 1222 abuts against the upper side wall of the second groove, the sliding insert 122 is located at the highest position of the first preset range relative to the sliding seat 121. When the limiting protrusion 1222 abuts against the lower side wall of the second groove, the sliding insert 122 is located at the lowest position of the first preset range relative to the sliding seat 121.

[0046] Optionally, in this embodiment, the limiting protrusion 1222 is located at the bottom of the first limiting portion 1221.

[0047] like Figure 6 As shown, optionally, the bottom surface of the first limiting part 1221 is connected to the second limiting part 1223, and the bottom of the first groove has a third groove, with the second limiting part 1223 located within the third groove. Optionally, the first elastic member 123 is a first spring, sleeved on the second limiting part 1223, which has a cylindrical structure; correspondingly, the third groove is also a cylindrical groove. Optionally, one end of the first elastic member 123 abuts against the bottom end face of the first limiting part 1221, and the other end of the first elastic member 123 abuts against the bottom of the third groove. That is, the first elastic member 123 has an extending tendency, i.e., a tendency to push the first limiting part 1221 upwards.

[0048] Optionally, in this embodiment, a sliding insert 122 is provided with two or more second limiting portions 1223, each second limiting portion 1223 is fitted with a first spring, and each sliding seat 121 is correspondingly provided with multiple third grooves, with each second limiting portion 1223 and the first spring located in a third groove. Optionally, in this embodiment, two second limiting portions 1223 are symmetrically arranged at the bottom of the first limiting portion 1221 along the second direction, so that the sliding insert 122 will not tilt or rotate relative to the sliding seat 121. Figure 6 The ef direction in the figure is the second direction, which is also the length direction of the battery cover 800.

[0049] Optionally, in order to enable the sliding seat 121 to move along the first direction, the lower mold base 1 is provided with a limiting groove. The sliding seat 121 is movably disposed in the limiting groove along the first direction, which is perpendicular to the side of the battery cover 800 and is the width direction of the battery cover 800. The sliding seat 121 can press against the side of the battery cover 800.

[0050] Furthermore, since a lower mold base 1 has two sets of positioning structures, and each set of positioning structures has two sets of pressing components 12, four limiting grooves are correspondingly opened on the lower mold base 1 to accommodate four sliding seats 121 respectively. Of course, in other embodiments, the limiting grooves are opened accordingly based on the value of M and the number of pressing components 12 set in each set of positioning structures.

[0051] Optionally, the sliding seat 121 has a first inclined surface 1211, and the upper mold base 2 is provided with a second pressing member 22. The second pressing member 22 can move downward with the upper mold base 2 to press against the first inclined surface 1211, so that the sliding seat 121 can move along the first direction to press against the side of the battery cover 800. Optionally, the second pressing member 22 has a second inclined surface 221, the first inclined surface 1211 is inclined upward, and the second inclined surface 221 is inclined downward. Optionally, the first inclined surface 1211 and the second inclined surface 221 are parallel. As the second pressing member 22 moves downward, the bottom of the second pressing member 22 gradually inserts into the limiting groove, the second inclined surface 221 contacts the first inclined surface 1211, and the two surfaces slide relative to each other. The second inclined surface 221 can then push the first inclined surface 1211 to move along the first direction toward the battery cover 800 to press against the side of the battery cover 800. At the same time, the sliding seat 121 of the pressing component 12 on the other side is also pushed to press the other side of the battery cover 800 to prevent the battery cover 800 from moving relative to the placement station 11 in the first direction.

[0052] Optionally, the slide seat 121 has a pressing protrusion 1212 that protrudes toward the battery cover 800 in a first direction, the pressing protrusion 1212 being used to press against the side of the battery cover 800.

[0053] Optionally, the placement station 11 also has limiting members at both ends along the second direction to restrict the movement of the battery cover 800 relative to the placement station 11 along the second direction.

[0054] In order to enable the sliding seat 121 to automatically pop open and detach from the side of the battery cover 800 after the terminal post 801 is riveted, so as to ensure that the battery cover 800 can be easily removed, the pressing assembly 12 may optionally include a second elastic member 124, which has a tendency to move the sliding seat 121 away from the side of the battery cover 800.

[0055] Optionally, the sliding seat 121 has a fourth groove on its side facing the battery cover 800. The second elastic member 124 is placed in the fourth groove, which extends longitudinally along a first direction. A limiting cylinder extending along the first direction can be provided at the bottom of the fourth groove. The second elastic member 124 is a second spring, which is sleeved on the limiting cylinder. One end of the second spring presses against the bottom of the fourth groove, and the other end presses against the side wall of the limiting groove near the battery cover 800. That is, the second spring has a tendency to push the sliding seat 121 away from the battery cover 800.

[0056] This multi-station riveting mold can complete the riveting of one end post 801 of at least two battery cover plates 800 at one time, which can greatly improve work efficiency. Furthermore, through the cooperation of the clamping part of the upper mold base 2 and the positioning structure of the lower mold base 1, the battery cover plate 800 can be limited and fixed during the downward movement of the upper mold base 2. During the upward movement of the upper mold base 2, the positioning structure automatically releases the battery cover plate 800, achieving synchronous positioning and riveting. When the riveting is completed, the battery cover plate 800 is released synchronously, preparing for the subsequent removal of the battery cover plate 800, which can further improve the overall processing efficiency.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-station riveting mold, characterized in that, The multi-station riveting die is used for riveting the terminal posts (801) on the battery cover (800). The lower mold base (1) has M placement stations (11) on it. The M battery cover plates (800) are located at the M placement stations (11) respectively. Each placement station (11) is provided with a positioning structure. The positioning structure is used to prevent the battery cover plate (800) from moving relative to the placement station (11). M is a positive integer greater than 1. The upper mold base (2) includes M punches (23), which respectively rivet the terminal post (801) of the battery cover plate (800) located at the M placement stations (11).

2. The multi-station riveting mold according to claim 1, characterized in that, The positioning structure includes a pressing component (12), the bottom surface of the battery cover (800) contacts the placement station (11), and the pressing component (12) can press against the top surface and / or side surface of the battery cover (800).

3. The multi-station riveting mold according to claim 2, characterized in that, The pressing component (12) includes a sliding seat (121) and a sliding insert (122). The sliding insert (122) is used to press against the top surface of the battery cover (800). The sliding insert (122) can move relative to the sliding seat (121) in a vertical direction within a first preset range. When the sliding insert (122) moves relative to the sliding seat (121) to the lowest position of the first preset range, the sliding insert (122) presses against the top surface of the battery cover (800).

4. The multi-station riveting mold according to claim 3, characterized in that, The upper mold base (2) is provided with a first clamping member (21), which can press against the sliding insert (122) as the upper mold base (2) moves down, so that the sliding insert (122) moves relative to the sliding seat (121) to the lowest position.

5. The multi-station riveting mold according to claim 3, characterized in that, The pressing component (12) further includes a first elastic element (123) which has a tendency to move the sliding insert (122) relative to the sliding seat (121) to the highest position of the first preset range.

6. The multi-station riveting mold according to claim 5, characterized in that, The top surface of the sliding seat (121) is provided with a first groove extending vertically, and the side wall of the first groove is provided with a second groove extending vertically in a first direction. The sliding insert (122) has a first limiting part (1221) extending vertically. The first limiting part (1221) is inserted into the first groove. The side wall of the first limiting part (1221) is provided with a limiting protrusion (1222) extending in the first direction. The limiting protrusion (1222) is inserted into the second groove in the vertical direction. The size of the limiting protrusion (1222) is smaller than the size of the bottom of the second groove. The first direction is the horizontal direction.

7. The multi-station riveting mold according to claim 6, characterized in that, The bottom surface of the first limiting part (1221) is connected to the second limiting part (1223), and the bottom of the first groove is provided with a third groove, and the second limiting part (1223) is located in the third groove; The first elastic element (123) is a first spring, which is sleeved on the second limiting part (1223), and / or, one end of the first elastic element (123) abuts against the bottom end face of the first limiting part (1221), and the other end of the first elastic element (123) abuts against the bottom of the third groove.

8. The multi-station riveting mold according to any one of claims 2-7, characterized in that, The pressing component (12) includes a sliding seat (121), the lower mold base (1) has a limiting groove, the sliding seat (121) is movably disposed in the limiting groove along a first direction, the first direction is perpendicular to the side of the battery cover (800), and the sliding seat (121) can press against the side of the battery cover (800).

9. The multi-station riveting mold according to claim 8, characterized in that, The sliding seat (121) has a first inclined surface (1211), and the upper mold seat (2) is provided with a second pressing member (22). The second pressing member (22) can move down with the upper mold seat (2) to press against the first inclined surface (1211), so that the sliding seat (121) can move along the first direction to press against the side of the battery cover (800). And / or, the pressing assembly (12) further includes a second elastic element (124) having a tendency to move the sliding seat (121) away from the side of the battery cover (800).

10. The multi-station riveting mold according to claim 8, characterized in that, One of the positioning structures includes two sets of the pressing components (12), the sliding seats (121) of the two sets of the pressing components (12) are respectively capable of pressing against two opposite sides of the battery cover (800), and each set of the pressing components (12) includes at least one pressing component (12).

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