Vehicle-mounted compressor gasket stamping die
By designing a stamping die for vehicle compressor gaskets and using a multi-punch assembly to achieve the overall stamping of the inner and outer gaskets of the leaf spring, the problem of low material utilization in the existing technology is solved and the production cost is reduced.
Patent Information
- Application Number
- CN202422808740.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing molds require separate stamping of the inner and outer leaf spring gaskets when producing gaskets for automotive compressors, resulting in low material utilization and high costs.
Design a stamping die for a vehicle compressor gasket, comprising an upper die and a lower die set spaced apart vertically, and a punch assembly including a first punch, a second punch and a third punch, which are respectively used to stamp the inner gasket of the leaf spring, the inner ring and the round hole of the outer gasket of the leaf spring and the outer ring of the outer gasket of the leaf spring, to realize the overall stamping of the inner and outer gaskets of the leaf spring.
By using integral stamping, the utilization rate of materials is improved and the production cost is reduced.
Smart Images
Figure CN223491849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a stamping die for a vehicle compressor gasket. Background Technology
[0002] Vehicle compressor gaskets are mainly divided into inner leaf spring gaskets and outer leaf spring gaskets. Figure 1 and Figure 2 (As shown). These gaskets play a crucial sealing and cushioning role in the compressor to ensure its proper operation and performance. The inner leaf spring gasket is typically located inside the compressor, while the outer leaf spring gasket is located outside the compressor; together, they work to reduce vibration and protect the compressor from external impacts.
[0003] Existing molds require separate stamping of the inner and outer leaf spring gaskets when producing gaskets for automotive compressors. Even when the gaskets are joined together as a whole, the material utilization rate is low, resulting in high costs. Utility Model Content
[0004] Therefore, this utility model provides a vehicle compressor gasket stamping die to solve the problems existing in the above-mentioned technology.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A stamping die for a vehicle compressor gasket includes an upper die and a lower die arranged at an interval; the bottom of the upper die is provided with a punch assembly, and the top of the lower die is provided with a punch groove adapted to the punch assembly;
[0007] The punch assembly includes a first punch, a second punch, and a third punch arranged sequentially along the material conveyor belt travel direction. The first punch is used to punch four inner leaf spring washers in the middle of the material conveyor belt. The second punch is used to punch the inner ring and round hole of the outer leaf spring washer on the outside of the material conveyor belt after punching the four inner leaf spring washers. The third punch is used to punch the outer ring of the outer leaf spring washer on the outside of the material conveyor belt after punching the inner ring and round hole of the outer leaf spring washer.
[0008] Optionally, the upper module includes an upper mold base, an upper pad, a punch fixing plate, and a stripper plate arranged sequentially from top to bottom;
[0009] The lower module includes a cavity mold fixing plate, a lower pad plate, and a lower mold base arranged sequentially from top to bottom;
[0010] Furthermore, the first punch, the second punch, and the third punch are all fixedly connected to the punch fixing plate.
[0011] Optionally, the stripping assembly includes a limiting ejector rod, and a limiting hole is provided on the upper mold base. The limiting ejector rod passes through the upper pad, the punch fixing plate and the stripping plate in sequence through the limiting hole. A stripping spring is provided in the limiting hole. One end of the stripping spring is fixedly connected to the limiting ejector rod, and the other end of the stripping spring is fixedly connected to the limiting hole.
[0012] Optionally, the upper die base, upper backing plate, and punch fixing plate are fixed by a connecting stud that runs through the top of the upper die base.
[0013] Optionally, an outer guide post is inserted through the lower die base, the lower pad plate, and the die fixing plate. An outer guide sleeve adapted to the outer guide post is provided on the upper die base. The outer guide sleeve passes through the stripper plate, the punch fixing plate, and the upper pad plate and is placed inside the outer guide sleeve. The outer guide post and the outer guide sleeve are slidably connected.
[0014] An inner guide post is inserted through the punch fixing plate and the stripper plate. The top end of the inner guide post is fixedly connected to the punch fixing plate, and the inner guide post is slidably connected to the stripper plate. An inner guide sleeve adapted to the inner guide post is provided on the die fixing plate. The bottom end of the inner guide post is placed in the inner guide sleeve, and the inner guide post is slidably connected to the inner guide sleeve.
[0015] The upper module and the lower module slide towards each other or in opposite directions through the outer guide post and the inner guide post.
[0016] Optionally, a blanking cavity is provided at the punching groove on the die fixing plate. The blanking cavity is adapted to the shape of the first punch, the second punch and the third punch. The cutting edge of the blanking cavity is divided into two parts: the upper part is a vertical cutting edge and the lower part is a clearance cutting edge that expands outward from the vertical cutting edge to both sides.
[0017] Optionally, the angle between the yielding cutting edge and the vertical cutting edge is 1.5°.
[0018] This utility model has at least the following beneficial effects:
[0019] This invention utilizes a first punch, a second punch, and a third punch arranged sequentially on an upper module. The material belt passes through the first punch, the second punch, and the third punch in sequence. The material is discharged by using inner and outer leaf spring washers of the same thickness and matching the single-unit usage. The first punch punches out four inner leaf spring washers in the middle of the material belt. When the material belt moves to below the second punch, the inner ring and round hole of the outer leaf spring washer are punched out on the outside of the first punch, while the waste material in the middle of the inner ring is cut off. Finally, the material belt moves to the third punch, where the outer ring shape of the outer leaf spring washer is punched out, thereby maximizing the material utilization rate. Attached Figure Description
[0020] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.
[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0022] Figure 1 This is a schematic diagram of the inner washer structure of a leaf spring;
[0023] Figure 2 This is a schematic diagram of the outer washer structure of a leaf spring;
[0024] Figure 3 This is a schematic diagram of a stamping die structure according to an embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the punch insert and the first punch, second punch, and third punch structure of one embodiment of the present utility model;
[0026] Figure 5 This is a schematic diagram of the cavity cutting edge structure of a concave die insert according to an embodiment of the present invention.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Upper die assembly; 101. Upper die base; 102. Upper backing plate; 103. Punch fixing plate; 104. Stripper plate; 2. Lower die assembly; 201. Die fixing plate; 202. Lower backing plate; 203. Lower die base; 3. First punch; 4. Second punch; 5. Third punch; 6. Material strip; 7. Stripper assembly; 701. Limiting ejector rod; 702. Limiting hole; 703. Stripper spring; 8. Connecting stud; 9. Outer guide post; 10. Outer guide sleeve; 11. Inner guide post; 12. Inner guide sleeve; 13. Vertical cutting edge; 14. Clearance cutting edge. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.
[0031] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.
[0032] like Figures 1-5 As shown, this utility model discloses a stamping die for a vehicle compressor gasket, which includes an upper die 1 and a lower die 2.
[0033] The upper module 1 includes an upper mold base 101, an upper pad 102, a punch fixing plate 103, and a stripper plate 104 arranged sequentially from top to bottom;
[0034] The lower module 2 includes a cavity mold fixing plate 201, a lower pad plate 202 and a lower mold base 203 arranged sequentially from top to bottom;
[0035] The punch fixing plate 103 is provided with a first punch 3, a second punch 4 and a third punch 5 at intervals along the traveling direction of the material belt 6. The first punch 3 is used to punch four inner leaf spring washers in the middle of the material belt 6. The second punch 4 is used to punch the inner ring and round hole of the outer leaf spring washer on the outside of the material belt 6 after punching the four inner leaf spring washers. The third punch 5 is used to punch the outer ring of the outer leaf spring washer on the outside of the material belt 6 after punching the inner ring and round hole of the outer leaf spring washer.
[0036] The aforementioned first punch 3, second punch 4, and third punch 5 are spaced one step apart and are positioned on the upper module 1 along the travel direction of the material belt 6. The first punch 3 is a conventional leaf spring inner washer punch, and four first punches 3 are arranged in a circumferential array according to the size of the inner ring of the leaf spring outer washer. The second punch 4 is a punch corresponding to the inner ring of the leaf spring outer washer and the round hole. While punching out the shape of the inner ring of the leaf spring outer washer and the round hole on the material belt 6, it cuts off the waste material of the inner ring of the leaf spring outer washer that has been punched on the inside. The third punch 5 is a punch corresponding to the outer ring of the leaf spring outer washer. It punches out the shape of the outer ring of the leaf spring outer washer on the material belt 6, which, together with the shape punched out by the second punch 4, forms the structure of the leaf spring outer washer.
[0037] In a further embodiment, the first punch 3, the second punch 4 and the third punch 5 are all disposed on the punch insert, and the punch insert is detachably and fixedly connected to the punch fixing plate 103.
[0038] The die fixing plate 201 is provided with a die insert that is compatible with the first punch 3, the second punch 4 and the third punch 5. The die insert is detachably connected to the die fixing plate 201.
[0039] The aforementioned punch insert and die insert are both fixed in a detachable manner. Specifically, the fixing method is as follows: corresponding placement slots are opened on the punch fixing plate 103 / die fixing plate 201, and the punch insert / die insert can be placed in the placement slots. Then, bolts are used to fix the punch insert / die insert at the corners. Part of the bolt is fixed to the punch insert / die insert, and the other part is fixed to the punch fixing plate 103 / die fixing plate 201. Thus, the punch insert and die insert can be disassembled and replaced by removing and installing the bolts.
[0040] Furthermore, the stripper plate 104 is connected to the upper die holder 101 via the stripper assembly 7 through the punch fixing plate 103 and the upper pad plate 102. The stripper assembly 7 is used to separate the strip from the upper die holder 101 after stamping.
[0041] The stripping assembly 7 includes a limiting push rod 701. A limiting hole 702 is provided on the upper mold base 101. The limiting push rod 701 passes through the upper pad 102, the punch fixing plate 103 and the stripping plate 104 in sequence through the limiting hole 702. A stripping spring 703 is provided in the limiting hole 702. One end of the stripping spring 703 is fixedly connected to the limiting push rod 701, and the other end of the stripping spring 703 is fixedly connected to the limiting hole 702.
[0042] A screw plug is provided at the top of the aforementioned limiting hole 702. The screw plug is inserted into the limiting hole 702, and the unloading spring 703 is fixed between the screw plug and the limiting rod 701 to ensure the reset effect of the limiting rod 701. At the same time, the unloading plate 104 can slide along the limiting rod 701.
[0043] There is a gap between the initial position of the stripper plate 104 and the punch fixing plate 103. The limiting rod 701 can extend out of the bottom of the stripper plate 104. During the stamping process, the stripper plate 104 moves upward, and at the same time, the limiting rod 701 compresses the unloading spring 703 and retracts into the limiting hole 702. After the stamping is completed, the unloading spring 703 restores its deformation and pushes out the limiting rod 701, thus completing the separation of the strip and the punch.
[0044] The upper mold base 101, the upper pad 102, and the punch fixing plate 103 are connected by a connecting stud 8 through the top of the upper mold base 101, which fixes the upper mold base 101, the upper pad 102, and the punch fixing plate 103.
[0045] An outer guide post 9 is inserted through the lower mold base 203, the lower pad plate 202 and the die fixing plate 201. An outer guide sleeve 10 adapted to the outer guide post 9 is provided on the upper mold base 101. The outer guide sleeve 10 passes through the stripper plate 104, the punch fixing plate 103 and the upper pad plate 102 and is placed inside the outer guide sleeve 10. The outer guide post 9 and the outer guide sleeve 10 are slidably connected.
[0046] An inner guide post 11 is inserted through the punch fixing plate 103 and the stripper plate 104. The top end of the inner guide post 11 is fixedly connected to the punch fixing plate 103, and the inner guide post 11 is slidably connected to the stripper plate 104. An inner guide sleeve 12 adapted to the inner guide post 11 is provided on the die fixing plate 201. The bottom end of the inner guide post 11 is placed inside the inner guide sleeve 12, and the inner guide post 11 and the inner guide sleeve 12 are slidably connected.
[0047] The upper module 1 and the lower module 2 slide towards each other or in opposite directions through the outer guide post 9 and the inner guide post 11.
[0048] The aforementioned outer guide pillars 9 are provided in four locations, situated at the four corners of the lower mold base 203.
[0049] In another embodiment, the die insert has a blanking cavity, which is adapted to the shape of the first punch 3, the second punch 4 and the third punch 5. The cutting edge of the blanking cavity is divided into two parts: the upper part is a vertical cutting edge 13 and the lower part is a clearance cutting edge 14 that expands outward from the vertical cutting edge 13 to both sides.
[0050] The angle between the yielding cutting edge 14 and the vertical cutting edge 13 is 1.5°.
[0051] In addition to matching the shape of the punch, the blanking cavity described above has a two-section structure. The upper 3mm cutting edge is set as a vertical cutting edge, and the remaining part of the lower cutting edge is set as a relief cutting edge 14. The relief cutting edge 14 is set in an "outward V" shape. The included angle between the relief cutting edge 14 and the vertical cutting edge 13 is 1.5°, which makes blanking more convenient and ensures the strength of the punch during blanking.
[0052] Machining process of the die cutting edge: It is processed by wire cutting machine with a slow wire cutting machine, and the cutting is divided into 3 passes: the first pass is rough cutting with the copper wire tilted at an angle of 1.0 degree, and then the core is removed; the copper wire is adjusted to a vertical state, and semi-finishing and finishing are performed in sequence to ensure the geometric dimensional accuracy and the roughness of the cutting edge.
[0053] Punch machining process: The punch is machined by wire cutting on a slow wire cutting machine, and the cutting is done in 3 passes. Special attention should be paid here. When clamping, support points should be set at both ends of the punch. Then, the dial indicator should be used to align the punch and the cutting process should be carried out in 3 passes. After the middle part is machined, copper foil and 502 glue are used to bond this part. Then, the support points at both ends are finely repaired. Finally, the punch is soaked in cleaning solution and wiped clean.
[0054] During stamping, the upper die 1 is pushed downward by the stamping force. The movement is guided by the stripper spring 703, the inner stripper guide sleeve 12, and the outer stripper guide sleeve 10 until it is in contact with the steel strip. At this time, the gap between the punch fixing plate 103 and the stripper plate 104 is gradually eliminated by the reverse force. At the same time, the tongue spring punch is driven downward by the protective sleeve to shear with the inner cavity of the die insert, completing one stamping step.
[0055] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0056] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
[0057] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.
Claims
1. A stamping die for a vehicle-mounted compressor gasket, comprising an upper die assembly and a lower die assembly spaced apart vertically; characterized in that: The bottom of the upper module is provided with a punch assembly, and the top of the lower module is provided with a punch groove that is adapted to the punch assembly. The punch assembly includes a first punch, a second punch, and a third punch arranged sequentially along the material conveyor belt travel direction. The first punch is used to punch four inner leaf spring washers in the middle of the material conveyor belt. The second punch is used to punch the inner ring and round hole of the outer leaf spring washer on the outside of the material conveyor belt after punching the four inner leaf spring washers. The third punch is used to punch the outer ring of the outer leaf spring washer on the outside of the material conveyor belt after punching the inner ring and round hole of the outer leaf spring washer.
2. The stamping die for a vehicle-mounted compressor gasket according to claim 1, characterized in that: The upper module includes, from top to bottom, an upper mold base, an upper pad, a punch fixing plate, and a stripper plate; The lower module includes a cavity mold fixing plate, a lower pad plate, and a lower mold base arranged sequentially from top to bottom; Furthermore, the first punch, the second punch, and the third punch are all fixedly connected to the punch fixing plate.
3. The stamping die for a vehicle-mounted compressor gasket according to claim 2, characterized in that: The stripper plate is connected to the upper die base through the stripper assembly, which passes through the punch fixing plate and the upper pad plate. The stripper assembly is used to separate the strip from the upper die base after stamping. The stripping assembly includes a limiting ejector rod, and a limiting hole is provided on the upper mold base. The limiting ejector rod passes through the upper pad, the punch fixing plate and the stripping plate in sequence through the limiting hole. A stripping spring is provided in the limiting hole. One end of the stripping spring is fixedly connected to the limiting ejector rod, and the other end of the stripping spring is fixedly connected to the limiting hole.
4. The stamping die for a vehicle-mounted compressor gasket according to claim 2, characterized in that: The upper die base, upper pad, and punch fixing plate are fixed by a connecting stud that runs through the top of the upper die base.
5. A stamping die for a vehicle-mounted compressor gasket according to claim 2, characterized in that: An outer guide post is inserted through the lower mold base, the lower pad plate and the die fixing plate. An outer guide sleeve adapted to the outer guide post is provided on the upper mold base. The outer guide sleeve passes through the stripper plate, the punch fixing plate and the upper pad plate and is placed inside the outer guide sleeve. The outer guide post and the outer guide sleeve are slidably connected. An inner guide post is inserted through the punch fixing plate and the stripper plate. The top end of the inner guide post is fixedly connected to the punch fixing plate, and the inner guide post is slidably connected to the stripper plate. An inner guide sleeve adapted to the inner guide post is provided on the die fixing plate. The bottom end of the inner guide post is placed in the inner guide sleeve, and the inner guide post is slidably connected to the inner guide sleeve. The upper module and the lower module slide towards each other or in opposite directions through the outer guide post and the inner guide post.
6. The stamping die for a vehicle-mounted compressor gasket according to claim 5, characterized in that: The die fixing plate has a blanking cavity in the punching groove. The blanking cavity is adapted to the shape of the first punch, the second punch and the third punch. The cutting edge of the blanking cavity is divided into two parts: the upper part is a vertical cutting edge and the lower part is a clearance cutting edge that expands outward from the vertical cutting edge to both sides.
7. The stamping die for a vehicle-mounted compressor gasket according to claim 6, characterized in that: The angle between the yielding cutting edge and the vertical cutting edge is 1.5°.