A multi-station stamping die device for lithium battery welding ring

Abstract

The utility model discloses a kind of lithium battery welding ring multi-station stamping die device, comprising: substrate, the outer wall of the substrate top is fixedly connected with lower die structure, the outer wall slidingly connected with upper die structure of lower die structure;The lower die structure includes lower module, the outer wall of the lower module top is equipped with recess, the utility model relates to stamping die technical field, this lower die structure and upper die structure, by the rolling cooperation of the outer wall guide groove of spacing rod and the ball inside sliding hole, sliding friction is converted into rolling friction, significantly reduce friction loss, improve the service life of die guide structure, avoid the structural damage caused by upper and lower die separation, by the cooperation of ejector rod, sliding slot and compression spring, in stamping process, ejector rod is extruded by blank compression spring to store elastic potential energy, after stamping is completed, spring releases potential energy and ejects workpiece automatically, realize self-unloading.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a multi-station stamping die device for lithium battery welding rings. Background Technology

[0002] In recent years, with the rapid development of new energy vehicles, energy storage equipment and other fields, the market demand for lithium batteries has shown explosive growth. As a key component connecting the electrode plates inside the lithium battery cell, the quality and production efficiency of the lithium battery welding ring directly affect the performance and production cost of the lithium battery.

[0003] In multi-station stamping die technology, existing equipment generally suffers from problems such as easy wear and short service life of the guide structure. During frequent stamping, the traditional sliding guide mechanism suffers from high frictional resistance and severe wear, which leads to a decrease in the accuracy of the upper and lower dies, thereby affecting the forming quality of the welded ring, increasing the cost of die maintenance and replacement, and reducing the service life of the die guide structure. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a multi-station stamping die device for lithium battery welding rings, which solves the problems of high frictional resistance and severe wear in traditional sliding guide mechanisms during frequent stamping processes.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A multi-station stamping die device for lithium battery welding rings includes: a base plate, a lower die structure fixedly connected to the outer wall of the top of the base plate, and an upper die structure slidably connected to the outer wall of the lower die structure; the lower die structure includes a lower module, a groove is formed on the outer wall of the top of the lower module, a sliding groove is formed on the inner wall of the bottom of the groove, a push rod is slidably connected to the inner wall of the sliding groove, a compression spring is fixedly connected to the outer wall of the bottom of the push rod, a limit rod is fixedly connected to the outer wall of the top of the lower module, a guide groove is formed on the outer wall of the limit rod, and an anti-detachment plate is fixedly connected to the outer wall of the top of the limit rod.

[0006] Preferably, the sluice grooves are arranged in a ring around the center point of the groove to ensure that the workpiece is subjected to force balance during the stamping process. The limiting rods are arranged in an array at the four corners of the lower module. The guide grooves are arranged in a ring around the center point of the anti-detachment plate to ensure the vertical downward pressure of the upper die.

[0007] Preferably, the outer wall of the compression spring on the side away from the top rod is fixedly connected to the inner wall of the bottom of the slide groove, the outer wall of the bottom of the lower module is fixedly connected to the outer wall of the top of the substrate, and the lower modules are arranged laterally along the outer wall of the substrate to form a multi-station layout.

[0008] Preferably, the upper mold structure includes a pressure plate, a limiting plate is fixedly connected to the outer wall of the bottom of the pressure plate, an upper module is fixedly connected to the outer wall of the bottom of the limiting plate, a sliding hole is provided on the outer wall of the pressure plate, and a ball is rotatably connected to the inner wall of the sliding hole.

[0009] Preferably, the balls are arranged in a ring at the center point of the sliding hole, the limiting plate is arranged laterally along the outer wall of the pressure plate, and the outer wall of the pressure plate is provided with mounting holes for mounting and connecting hydraulic devices. The hydraulic devices apply driving force through the pressure plate to drive the limiting plate and the upper module to move up and down.

[0010] Preferably, the outer wall of the limiting rod is slidably connected to the inner wall of the sliding hole, and the inner wall of the guide groove is slidably connected to the outer wall of the ball to form a rolling fit, which converts sliding friction into rolling friction and reduces wear. The inner wall of the groove is slidably connected to the outer wall of the upper module, and the upper module is gradually embedded into the groove to apply pressure to the blank and complete the stamping process of this station.

[0011] (III) Beneficial Effects This utility model provides a multi-station stamping die device for lithium battery welding rings. It has the following beneficial effects: (i) The upper mold structure converts sliding friction into rolling friction through the rolling cooperation between the guide groove on the outer wall of the limiting rod and the ball in the sliding hole, which significantly reduces friction loss, extends the service life of the mold guide structure, avoids structural damage caused by the separation of the upper and lower molds, and reduces overall maintenance costs.

[0012] (ii) The lower die structure, through the cooperation of ejector rod, slide and compression spring, during the stamping process, the ejector rod is squeezed by the blank and the compression spring stores elastic potential energy. After the stamping is completed, the spring releases the potential energy and ejects the workpiece by itself, realizing self-unloading and avoiding damage to the workpiece caused by manual unloading. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the upper mold structure of this utility model; Figure 5 This is a schematic diagram of the lower mold structure of this utility model.

[0014] In the diagram: 1. Base plate; 2. Lower mold structure; 21. Lower module; 22. Groove; 23. Slide groove; 24. Push rod; 25. Compression spring; 26. Limiting rod; 27. Guide groove; 28. Anti-detachment plate; 3. Upper mold structure; 31. Pressure plate; 32. Limiting plate; 33. Upper module; 34. Slide hole; 35. Ball bearing. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a multi-station stamping die device for lithium battery welding rings, comprising: a base plate 1, a lower die structure 2 fixedly connected to the outer wall of the top of the base plate 1, and an upper die structure 3 slidably connected to the outer wall of the lower die structure 2; the lower die structure 2 includes a lower module 21, a groove 22 is provided on the outer wall of the top of the lower module 21, a sliding groove 23 is provided on the inner wall of the bottom of the groove 22, a push rod 24 is slidably connected to the inner wall of the sliding groove 23, a compression spring 25 is fixedly connected to the outer wall of the bottom of the push rod 24, a limiting rod 26 is fixedly connected to the outer wall of the top of the lower module 21, a guide groove 27 is provided on the outer wall of the limiting rod 26, and an anti-detachment plate 28 is fixedly connected to the outer wall of the top of the limiting rod 26.

[0017] The slide groove 23 is arranged in a ring along the central point of the groove 22 to ensure that the workpiece is subjected to force balance during the stamping process. The limit rods 26 are arranged in a ring along the four corners of the lower module 21. The guide groove 27 is arranged in a ring along the central point of the anti-detachment plate 28 to ensure the vertical downward pressure of the upper die.

[0018] The outer wall of the compression spring 25 away from the top rod 24 is fixedly connected to the inner wall of the bottom of the slide groove 23, the outer wall of the bottom of the lower module 21 is fixedly connected to the outer wall of the top of the substrate 1, and the lower module 21 is arranged horizontally along the outer wall of the substrate 1 to form a multi-station layout.

[0019] The upper mold structure 3 includes a pressure plate 31. A limit plate 32 is fixedly connected to the outer wall of the bottom of the pressure plate 31. An upper module 33 is fixedly connected to the outer wall of the bottom of the limit plate 32. A sliding hole 34 is opened on the outer wall of the pressure plate 31. A ball bearing 35 is rotatably connected to the inner wall of the sliding hole 34.

[0020] The balls 35 are arranged in a ring at the center point of the sliding hole 34. The limiting plate 32 is arranged laterally along the outer wall of the pressure plate 31. The outer wall of the pressure plate 31 has mounting holes for mounting and connecting hydraulic devices. The hydraulic devices apply driving force through the pressure plate 31, which drives the limiting plate 32 and the upper module 33 to move up and down.

[0021] The outer wall of the limiting rod 26 is slidably connected to the inner wall of the sliding hole 34, and the inner wall of the guide groove 27 is slidably connected to the outer wall of the ball 35 to form a rolling fit, which converts sliding friction into rolling friction and reduces wear. The inner wall of the groove 22 is slidably connected to the outer wall of the upper module 33, and the upper module 33 gradually embeds into the groove 22 to apply pressure to the blank and complete the stamping process of this station.

[0022] In use, the lower mold structure 2 is fixed on the base plate 1 by the lower module 21. Each lower module 21 is arranged horizontally along the base plate 1 to form a multi-station layout. The upper mold structure 3 is connected to the hydraulic device through the mounting hole on the pressure plate 31. Its sliding hole 34 is sleeved on the limiting rod 26 of the lower mold to guide the stamping operation. First, the lithium battery welding ring blank is placed in the groove 22. The hydraulic device applies driving force through the pressure plate 31, which drives the limiting plate 32 and the upper module 33 to move downward. The limiting rod 26 slides downward along the inner wall of the sliding hole 34. The guide groove 27 on its outer wall forms a rolling fit with the annular array of balls 35 in the sliding hole 34, which converts sliding friction into rolling friction, reduces wear, and also ensures that the upper die presses down vertically, avoiding burrs or deformation of the workpiece due to lateral force. The upper module 33 gradually embeds into the groove 22, applies pressure to the blank, and completes the stamping process of this station. During stamping, the blank presses the ejector pin 24, causing it to slide downwards along the slide groove 23. The compression spring 25 is compressed and stores elastic potential energy. Multiple ejector pins 24 are evenly stressed, ensuring that the workpiece is stressed in a balanced manner during stamping and preventing local deformation. The hydraulic device releases pressure, the upper die structure 3 resets, the upper die 33 disengages from the groove 22, the compression spring 25 releases its potential energy, and pushes the ejector pin 24 to slide upwards along the slide groove 23, ejecting the formed workpiece out of the groove 22. At this time, the workpiece can be removed and transferred to the next station. The anti-detachment plate 28 at the top of the limiting rod 26 restricts the upward movement of the sliding hole 34, preventing the upper die from detaching from the lower die and ensuring structural safety.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station stamping die device for lithium battery welding rings, characterized in that, include: The substrate (1) has a lower mold structure (2) fixedly connected to the outer wall of the top of the substrate (1), and an upper mold structure (3) is slidably connected to the outer wall of the lower mold structure (2). The lower mold structure (2) includes a lower module (21). The outer wall of the top of the lower module (21) is provided with a groove (22). The inner wall of the bottom of the groove (22) is provided with a sliding groove (23). The inner wall of the sliding groove (23) is slidably connected with a push rod (24). The outer wall of the bottom of the push rod (24) is fixedly connected with a compression spring (25). The outer wall of the top of the lower module (21) is fixedly connected with a limit rod (26). The outer wall of the limit rod (26) is provided with a guide groove (27). The outer wall of the top of the limit rod (26) is fixedly connected with an anti-detachment plate (28).

2. The multi-station stamping die device for lithium battery welding rings according to claim 1, characterized in that: The slide groove (23) is arranged in a ring along the central point of the groove (22), the limiting rod (26) is arranged in a ring along the four corners of the lower module (21), and the guide groove (27) is arranged in a ring along the central point of the anti-detachment plate (28).

3. The multi-station stamping die device for lithium battery welding rings according to claim 1, characterized in that: The outer wall of the compression spring (25) away from the top rod (24) is fixedly connected to the inner wall of the bottom of the slide groove (23), the outer wall of the bottom of the lower module (21) is fixedly connected to the outer wall of the top of the substrate (1), and the lower module (21) is arranged laterally along the outer wall of the substrate (1).

4. The multi-station stamping die device for lithium battery welding rings according to claim 1, characterized in that: The upper mold structure (3) includes a pressure plate (31), a limiting plate (32) is fixedly connected to the outer wall of the bottom of the pressure plate (31), an upper module (33) is fixedly connected to the outer wall of the bottom of the limiting plate (32), a sliding hole (34) is opened on the outer wall of the pressure plate (31), and a ball bearing (35) is rotatably connected to the inner wall of the sliding hole (34).

5. The multi-station stamping die device for lithium battery welding rings according to claim 4, characterized in that: The balls (35) are arranged in a ring at the center point of the sliding hole (34), and the limiting plate (32) is arranged laterally along the outer wall of the pressure plate (31).

6. The multi-station stamping die device for lithium battery welding rings according to claim 1, characterized in that: The outer wall of the limiting rod (26) is slidably connected to the inner wall of the sliding hole (34), the inner wall of the guide groove (27) is slidably connected to the outer wall of the ball (35), and the inner wall of the groove (22) is slidably connected to the outer wall of the upper module (33).

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