Vehicle-mounted compressor gasket stamping die

Abstract

The invention discloses a vehicle-mounted compressor gasket stamping die, and relates to the technical field of stamping dies. The vehicle-mounted compressor gasket stamping die comprises an upper die set and a lower die set. The upper die set comprises an upper die base, an upper base plate, a punch fixing plate and a stripper plate which are sequentially arranged from top to bottom. The lower die set comprises a female die fixing plate, a lower base plate and a lower die base which are sequentially arranged from top to bottom. A first punch, a second punch and a third punch are arranged on the punch fixing plate at intervals in the advancing direction of the material belt, the first punch is used for punching four plate spring inner gaskets in the middle of the material belt, and the second punch is used for punching inner rings and round holes of plate spring outer gaskets on the outer sides of the four plate spring inner gaskets punched on the material belt. And the third punch is used for punching an outer ring of the plate spring outer gasket on the outer side of the punched inner ring of the plate spring outer gasket and the round hole of the material belt.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a stamping die for a vehicle-mounted compressor gasket. Background Art

[0002] The vehicle compressor gasket is mainly divided into leaf spring inner gasket and leaf spring outer gasket ( Figure 1 and Figure 2 These gaskets play a critical role in sealing and cushioning the compressor to ensure proper operation and performance. Leaf spring inner gaskets are usually located inside the compressor, while leaf spring outer gaskets are located outside the compressor, and the two work together to reduce vibration and protect the compressor from external impacts.

[0003] However, the existing molds need to stamp the inner leaf spring gasket and the outer leaf spring gasket separately when producing vehicle-mounted compressor gaskets. Even if the gaskets are connected as a whole, the material utilization rate is low, resulting in high costs. Summary of the invention

[0004] To this end, an embodiment of the present invention provides a vehicle-mounted compressor gasket stamping die to solve the problems existing in the above-mentioned technology.

[0005] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0006] A stamping die for a vehicle-mounted compressor gasket comprises an upper die set and a lower die set;

[0007] The upper die assembly includes an upper die seat, an upper pad, a punch fixing plate and a stripping plate which are arranged in sequence from top to bottom;

[0008] The lower die assembly includes a die fixing plate, a lower pad and a lower die seat which are arranged in sequence from top to bottom;

[0009] The first punch, the second punch and the third punch are arranged at intervals on the punch fixing plate along the traveling direction of the material belt. The first punch is used to punch four inner leaf spring gaskets in the middle of the material belt, the second punch is used to punch the inner ring and the circular hole of the outer leaf spring gasket on the outside of the four inner leaf spring gaskets after the material belt is punched, and the third punch is used to punch the outer ring of the outer leaf spring gasket on the outside of the inner ring and the circular hole of the outer leaf spring gasket after the material belt is punched.

[0010] Optionally, the first punch, the second punch and the third punch are all arranged on a punch insert, and the punch insert is detachably fixedly connected to a punch fixing plate.

[0011] Optionally, a die insert matched with the first punch, the second punch and the third punch is provided on the die fixing plate, and the die insert is detachably connected to the die fixing plate.

[0012] Optionally, the stripping plate is connected to the upper die base through a stripping assembly that passes through the punch fixing plate and the upper pad plate, and the stripping assembly is used to separate the material strip from the upper die base after the stamping is completed.

[0013] Optionally, the stripping assembly includes a limiting push rod, a limiting hole is opened on the upper die seat, the limiting push rod passes through the upper pad, the punch fixing plate and the stripping plate in sequence through the limiting hole, a stripping spring is arranged in the limiting hole, one end of the stripping spring is fixedly connected to the limiting push rod, and the other end of the stripping spring is fixedly connected to the limiting hole.

[0014] Optionally, the upper die seat, upper pad and punch fixing plate are connected by studs passing through the top of the upper die seat to fix the upper die seat, upper pad and punch fixing plate.

[0015] Optionally, an outer guide column is inserted through the lower die seat, the lower pad and the die fixing plate, and an outer guide sleeve matched with the outer guide column is arranged on the upper die seat, the outer guide sleeve passes through the stripper plate, the punch fixing plate and the upper pad and is placed in the outer guide sleeve, and the outer guide column is slidably connected with the outer guide sleeve;

[0016] An inner guide pin is inserted through the punch fixing plate and the stripper plate, the top end of the inner guide pin is fixedly connected to the punch fixing plate, the inner guide pin is slidably connected to the stripper plate, an inner guide sleeve adapted to the inner guide pin is provided on the die fixing plate, the bottom end of the inner guide pin is placed in the inner guide sleeve, and the inner guide pin is slidably connected to the inner guide sleeve;

[0017] The upper die set and the lower die set slide toward or in opposite directions through the outer guide pillars and the inner guide pillars.

[0018] Optionally, a blanking cavity is provided on the die insert, and the blanking cavity on the die insert is adapted to the shapes of the first punch, the second punch and the third punch. The cutting edge of the cavity is divided into two parts, the upper part is a vertical cutting edge, and the lower part is a yielding cutting edge expanding outward from the vertical cutting edge to both sides.

[0019] Optionally, the angle between the yielding edge and the vertical edge is 1.5°.

[0020] The present invention has at least the following beneficial effects:

[0021] The present invention has a first punch, a second punch and a third punch which are arranged in sequence on a punch fixing plate. The material belt passes through the first punch, the second punch and the third punch in sequence. The inner gasket of the leaf spring and the outer gasket of the leaf spring have the same material thickness and are arranged to a matching degree using a single machine. The first punch punches out four inner gaskets of the leaf spring in the middle of the punching belt. When the material belt moves to the bottom of the second punch, the inner ring and the circular hole of the outer gasket of the leaf spring are punched out on the outer side of the punching of the first punch, and the waste material in the middle of the inner ring is cut off at the same time. Finally, the material belt moves to the third punch and punches out the outer ring shape of the outer gasket of the leaf spring, thereby maximizing the utilization rate of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other drawings can be derived from the provided drawings without creative work.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0024] Figure 1 It is a schematic diagram of the structure of the gasket inside the leaf spring;

[0025] Figure 2 It is a schematic diagram of the structure of the outer gasket of the leaf spring;

[0026] Figure 3 A schematic diagram of the structure of a stamping die according to an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of a punch insert and a first punch, a second punch, and a third punch according to an embodiment of the present invention;

[0028] Figure 5 The figure is a schematic diagram of the cutting edge structure of the die insert cavity of an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Upper die assembly; 101. Upper die base; 102. Upper pad; 103. Punch fixing plate; 104. Stripper plate; 2. Lower die assembly; 201. Die fixing plate; 202. Lower pad; 203. Lower die base; 3. First punch; 4. Second punch; 5. Third punch; 6. Material belt; 7. Stripper assembly; 701. Limiting ejector rod; 702. Limiting hole; 703. Stripper spring; 8. Connecting stud; 9. Outer guide pin; 10. Outer guide sleeve; 11. Inner guide pin; 12. Inner guide sleeve; 13. Vertical cutting edge; 14. Yield cutting edge. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0033] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0034] like Figure 1-Figure 5 As shown, a stamping die for a vehicle compressor gasket disclosed in the present invention comprises an upper die set 1 and a lower die set 2;

[0035] The upper die assembly 1 includes an upper die base 101, an upper backing plate 102, a punch fixing plate 103 and a stripper plate 104 arranged in sequence from top to bottom;

[0036] The lower die assembly 2 includes a die fixing plate 201, a lower pad 202 and a lower die seat 203 arranged in sequence from top to bottom;

[0037] 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 for punching four inner leaf spring gaskets in the middle of the material belt 6, the second punch 4 is used for punching the inner ring and the circular hole of the outer leaf spring gasket on the outside of the four inner leaf spring gaskets after the material belt 6 is punched out, and the third punch 5 is used for punching the outer ring of the outer leaf spring gasket on the outside of the inner ring and the circular hole of the outer leaf spring gasket after the material belt 6 is punched out.

[0038] The above-mentioned first punch 3, second punch 4 and third punch 5 are arranged at a step interval and are arranged on the upper die set 1 along the traveling direction of the material belt 6, wherein the first punch 3 adopts a conventional leaf spring inner gasket punch, and four first punches 3 are arranged, and the four first punches 3 are distributed in a circular array according to the size of the inner ring of the leaf spring outer gasket; the second punch 4 adopts a punch corresponding to the inner ring of the leaf spring outer gasket and the circular hole, and while punching out the shape of the inner ring of the leaf spring outer gasket and the circular hole on the material belt 6, the waste material of the inner gasket of the leaf spring is cut off; the third punch 5 adopts a punch corresponding to the outer ring of the leaf spring outer gasket, and punches out the shape of the outer ring of the leaf spring outer gasket on the material belt 6, which together with the shape punched out by the second punch 4 constitutes the structure of the leaf spring outer gasket.

[0039] In a further embodiment, the first punch 3 , the second punch 4 and the third punch 5 are all arranged on a punch insert, and the punch insert is detachably fixedly connected to the punch fixing plate 103 .

[0040] The die fixing plate 201 is provided with a die insert matched with the first punch 3 , the second punch 4 and the third punch 5 , and the die insert is detachably connected to the die fixing plate 201 .

[0041] The above-mentioned punch insert and die insert are fixed in a detachable manner; the specific fixing method is: a corresponding placement groove is opened on the punch fixing plate 103 / die fixing plate 201, the punch insert / die insert can be placed in the placement groove, and then fixed at the corners of the punch insert / die insert by bolts, one part of the bolts is fixed on the punch insert / die insert, and the other part is fixed on the punch fixing plate 103 / die fixing plate 201, so that the punch insert and die insert can be disassembled and replaced by disassembling and assembling the bolts.

[0042] Furthermore, the stripping plate 104 is connected to the upper die base 101 through the stripping assembly 7 that penetrates the punch fixing plate 103 and the upper pad 102. The stripping assembly 7 is used to separate the material strip from the upper die base 101 after the stamping is completed.

[0043] The stripping assembly 7 includes a limiting push rod 701, and a limiting hole 702 is provided on the upper die 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 from the limiting hole 702. A stripping spring 703 is provided in the limiting hole 702, and 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.

[0044] A screw plug is provided at the top of the above-mentioned limiting hole 702, and the screw plug is inserted into the limiting hole 702, and the unloading spring 703 is fixed between the screw plug and the limiting push rod 701 to ensure the reset effect of the limiting push rod 701, and at the same time, the stripping plate 104 can slide along the limiting push rod 701;

[0045] A gap is provided between the initial position of the above-mentioned stripping plate 104 and the punch fixing plate 103, and the limiting push rod 701 can extend out of the bottom of the stripping plate 104. During the stamping process, the stripping plate 104 moves upward, and at the same time, the limiting push rod 701 compresses the unloading spring 703 and retracts it into the limiting hole 702. After the stamping is completed, the unloading spring 703 restores its deformation and pushes out the limiting push rod 701, thereby completing the separation of the material strip and the punch.

[0046] The upper die base 101 , the upper pad 102 and the punch fixing plate 103 are connected by connecting studs 8 that penetrate through the top of the upper die base 101 to fix the upper die base 101 , the upper pad 102 and the punch fixing plate 103 .

[0047] An outer guide post 9 is inserted through the lower die seat 203, the lower pad 202 and the die fixing plate 201, and an outer guide sleeve 10 adapted to the outer guide post 9 is arranged on the upper die seat 101. The outer guide sleeve 10 passes through the stripper plate 104, the punch fixing plate 103 and the upper pad 102 and is placed in the outer guide sleeve 10. The outer guide post 9 is slidably connected with the outer guide sleeve 10.

[0048] The punch fixing plate 103 and the stripper plate 104 are penetrated with an inner guide post 11, the top end of the inner guide post 11 is fixedly connected to the punch fixing plate 103, the inner guide post 11 is slidably connected to the stripper plate 104, the die fixing plate 201 is provided with an inner guide sleeve 12 adapted to the inner guide post 11, the bottom end of the inner guide post 11 is placed in the inner guide sleeve 12, and the inner guide post 11 is slidably connected to the inner guide sleeve 12;

[0049] The upper die set 1 and the lower die set 2 slide toward each other or in opposite directions via the outer guide pillars 9 and the inner guide pillars 11 .

[0050] There are four outer guide pillars 9, which are arranged at the four corners of the lower die base 203.

[0051] In another embodiment, a blanking cavity is provided on the die insert, and the blanking cavity on the die insert is adapted to the shapes 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 yielding cutting edge 14 that expands outward from the vertical cutting edge 13 to both sides.

[0052] The angle between the yielding edge 14 and the vertical edge 13 is 1.5°.

[0053] In addition to the shape of the above-mentioned blanking cavity being compatible with the shape of the punch, the cutting edge of the blanking cavity is divided into two sections. The 3mm cutting edge at the upper end is set as a vertical cutting edge, and the cutting edge of the remaining part of the lower end is set as a yielding cutting edge 14, and the yielding cutting edge 14 is set in an "outward eight" shape. The angle between the yielding cutting edge 14 and the vertical cutting edge 13 is 1.5°, which makes blanking more convenient while ensuring the strength of the punch during blanking.

[0054] The processing technology of the die cutting edge: use slow wire machine tool wire cutting, a total of 3 cutting: the first rough cutting, the copper wire tilt angle 1.0 degree, then remove the core; the copper wire is adjusted to a vertical state, and semi-finishing and finishing are carried out in turn to ensure the geometric size accuracy and edge roughness.

[0055] Punch processing technology: Use slow wire machine tool wire cutting, a total of 3 cutting: Special attention should be paid here. When clamping, support points should be set at both ends of the punch, and then the table should be pulled for alignment, and 3 cutting processes should be performed; after the middle position is processed, use copper foil and 502 glue to bond this part, and then refine the support points at both ends, and finally soak the punch with cleaning fluid and wipe it clean.

[0056] During stamping, the punching pressure pushes the upper die set 1 downward, and the movement guide is completed by the unloading spring 703 and the unloading inner guide sleeve 12 and the outer guide sleeve 10 until it fits with the steel strip. At this time, the gap between the punch fixing plate 103 and the stripping plate 104 is gradually eliminated by the reverse force. At the same time, the tongue spring punch is driven downward by the sheath to shear with the inner cavity of the die insert, completing a stamping step.

[0057] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0058] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0059] The present invention is described in more detail through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, it is obvious that several variations and improvements can be made to these specific embodiments, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the attached claims.

Claims

1. A stamping die for a vehicle compressor gasket, characterized in that: It includes an upper die set and a lower die set; The upper die assembly includes an upper die seat, an upper pad, a punch fixing plate and a stripping plate which are arranged in sequence from top to bottom; The lower die assembly includes a die fixing plate, a lower pad and a lower die seat which are arranged in sequence from top to bottom; The first punch, the second punch and the third punch are arranged at intervals on the punch fixing plate along the traveling direction of the material belt. The first punch is used to punch four inner leaf spring gaskets in the middle of the material belt, the second punch is used to punch the inner ring and the circular hole of the outer leaf spring gasket on the outside of the four inner leaf spring gaskets after the material belt is punched, and the third punch is used to punch the outer ring of the outer leaf spring gasket on the outside of the inner ring and the circular hole of the outer leaf spring gasket after the material belt is punched.

2. The vehicle compressor gasket stamping die according to claim 1, characterized in that: The first punch, the second punch and the third punch are all arranged on a punch insert, and the punch insert is detachably fixedly connected to a punch fixing plate.

3. The stamping die for a vehicle-mounted compressor gasket according to claim 2, characterized in that: The die fixing plate is provided with a die insert matched with the first punch, the second punch and the third punch, and the die insert is detachably connected to the die fixing plate.

4. The vehicle compressor gasket stamping die according to claim 1, characterized in that: The stripping plate is connected to the upper die seat through a stripping assembly that penetrates the punch fixing plate and the upper pad. The stripping assembly is used to separate the material strip from the upper die seat after the stamping is completed.

5. The vehicle-mounted compressor gasket stamping die according to claim 4, characterized in that: The stripping assembly includes a limiting push rod, and a limiting hole is provided on the upper die seat. The limiting push 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, and one end of the stripping spring is fixedly connected to the limiting push rod, and the other end of the stripping spring is fixedly connected to the limiting hole.

6. The vehicle compressor gasket stamping die according to claim 1, characterized in that: The upper die seat, the upper pad and the punch fixing plate are connected by studs passing through the top of the upper die seat to fix the upper die seat, the upper pad and the punch fixing plate.

7. The vehicle-mounted compressor gasket stamping die according to claim 1, characterized in that: An outer guide column is inserted through the lower die seat, the lower pad and the die fixing plate, and an outer guide sleeve matched with the outer guide column is arranged on the upper die seat. The outer guide sleeve passes through the stripper plate, the punch fixing plate and the upper pad and is placed in the outer guide sleeve. The outer guide column is slidably connected with the outer guide sleeve. An inner guide pin is inserted through the punch fixing plate and the stripper plate, the top end of the inner guide pin is fixedly connected to the punch fixing plate, the inner guide pin is slidably connected to the stripper plate, an inner guide sleeve adapted to the inner guide pin is provided on the die fixing plate, the bottom end of the inner guide pin is placed in the inner guide sleeve, and the inner guide pin is slidably connected to the inner guide sleeve; The upper die set and the lower die set slide toward or in opposite directions through the outer guide pillars and the inner guide pillars.

8. The vehicle compressor gasket stamping die according to claim 3, characterized in that: A blanking cavity is provided on the die insert, and the blanking cavity on the die insert is adapted to the shapes of the first punch, the second punch and the third punch. The cutting edge of the cavity is divided into two parts, the upper part is a vertical cutting edge, and the lower part is a yielding cutting edge that expands outward from the vertical cutting edge to both sides.

9. The vehicle-mounted compressor gasket stamping die according to claim 8, characterized in that: The angle between the yielding cutting edge and the vertical cutting edge is 1.5°.

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