Commercial vehicle stabilizer bar end punch hole cavity die

Abstract

The utility model relates to a kind of commercial vehicle stabilizer bar end punch cavity mould, belong to stabilizer bar end punch forming tool technical field, including lower die set and upper die set, lower die set includes punch lower cavity mould and punch bottom socket, punch lower cavity mould center is processed with counterbore, punch bottom socket is detachably installed in counterbore;Punch bottom socket is circular ring structure, the inner hole of punch bottom socket is blanking hole, the outer diameter of punch bottom socket is less than the outer diameter of upper portion counterbore groove of counterbore;The utility model designs lower die set as detachable punch lower cavity mould and punch bottom socket, subsequent only needs to replace punch bottom socket, the service life of punch lower cavity mould is increased to at least 3000 from original processing less than 300 stabilizer bars, life is promoted to more than 10 times of original, mould expense reduces about 1 / 9 of original, when same kind of product is produced, mould replacement frequency is reduced, and change time is reduced to 3-5 minutes from original nearly 1 hour, reduce processing cost.

Description

Technical Field

[0001] This utility model relates to a punching cavity mold for the end of a stabilizer bar in commercial vehicles, belonging to the technical field of stabilizer bar end punching forming tooling. Background Technology

[0002] The stabilizer bar is a core component of the automotive suspension system, and its primary function is to suppress body roll and improve driving stability. Punching the stabilizer bar end is a crucial process that determines its assembly precision and load-bearing reliability; it requires the use of a punching die.

[0003] The existing punching cavity mold used for punching the end of the stabilizer bar in commercial vehicles is a single piece. When the punching blank is severely worn, the entire punching cavity mold needs to be replaced, resulting in high mold costs. Therefore, there is an urgent need to design a new type of punching cavity mold for the end of the stabilizer bar to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a punching cavity mold for the end of a commercial vehicle stabilizer bar, which can replace the parts of the punching cavity mold that wear out quickly, thereby reducing processing costs.

[0005] The commercial vehicle stabilizer bar end punching cavity mold of this utility model includes a lower mold assembly and an upper mold assembly. The lower mold assembly is installed on the worktable of the punch press, and the upper mold assembly is installed on the punch press slide. The lower mold assembly includes a lower punching cavity mold and a punching recess. The lower punching cavity mold has a countersunk hole machined in the center, and the punching recess is detachably installed in the countersunk hole. The punching recess has a circular ring structure, and the inner hole of the punching recess is the blanking hole. The outer diameter of the punching recess is smaller than the outer diameter of the countersunk groove at the top of the countersunk hole, and the two are in clearance fit. The technical solution of this utility model is to provide a punching cavity mold for the end of a commercial vehicle stabilizer bar. The lower mold assembly is designed as a detachable punching lower cavity mold and a punching recess. The punching recess can be detachably installed in the countersunk hole of the punching lower cavity mold. The end of the stabilizer bar is punched through the inner hole of the punching recess. Subsequently, only the punching recess needs to be replaced, without replacing the entire punching cavity mold, thus reducing processing costs.

[0006] Preferably, the thickness of the punching recess is equal to the depth of the countersunk groove at the top of the countersunk hole; after the stabilizing rod is placed into the lower punching cavity mold, the outer edge of the stabilizing rod fits against the outer edge of the punching recess, and the bottom surface of the stabilizing rod fits against the top surface of the punching recess.

[0007] Preferably, the countersunk hole of the punching lower cavity mold overlaps with the tapered hole to facilitate the placement and removal of the stabilizing rod, and also to facilitate the removal and replacement of the punching bottom socket.

[0008] Furthermore, the lower cavity die for punching is fixedly connected to the lower cavity die mounting base. The lower cavity die mounting base is used to fixally connect to the punch press worktable. The lower cavity die mounting base is provided with a through hole, which is coaxial with the countersunk hole. The diameter of the through hole is larger than the inner diameter of the punching recess to facilitate smooth material feeding.

[0009] Preferably, the upper die assembly includes a punching upper cavity die and an upper cavity die mounting base, the punching upper cavity die and the upper cavity die mounting base are fixedly connected, and the upper cavity die mounting base is used to connect with the punch press slide.

[0010] Preferably, the upper punching cavity mold has a rod clearance groove A, and the lower punching cavity mold has a rod clearance groove B. Both rod clearance groove A and rod clearance groove B are adapted to the rod of the stabilizing rod to avoid the rod of the stabilizing rod and to position the rod.

[0011] The advantages of this utility model compared with the prior art are: The commercial vehicle stabilizer bar end punching cavity mold described in this utility model features a lower mold assembly designed as a detachable punching lower cavity mold and punching base. Subsequent replacements only require the punching base, eliminating the need to replace the entire punching cavity mold. This utility model increases the service life of the punching lower cavity mold from processing less than 300 stabilizer bars to at least 3000, more than 10 times the original lifespan. Mold costs are reduced by approximately 1 / 9 of the original cost. For the same product, the number of mold replacements is reduced, and changeover time is decreased from nearly one hour to 3-5 minutes, further lowering processing costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the state of this utility model in use; Figure 2 This is a structural schematic diagram of the lower module; Figure 3 This is a sectional view of the lower module; Figure 4 This is a cross-sectional view of the punching cavity mold; Figure 5 This is a schematic diagram of the structure of the lower cavity mold mounting base; Figure 6 This is a structural diagram of the upper module.

[0013] In the diagram: 1. Lower module; 11. Lower punching cavity mold; 111. Rod clearance groove B; 112. Tapered hole; 113. Countersunk hole; 12. Punching recess; 2. Lower cavity mold mounting base; 21. Through hole; 3. Upper module; 31. Upper cavity mold mounting base; 32. Upper punching cavity mold; 321. Rod clearance groove A; 4. Punch. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments.

[0015] like Figure 1-6 As shown, this embodiment is achieved through the following technical solution: it includes a lower die 1 and an upper die 3. The lower die 1 is installed on the punch press worktable, and the upper die 3 is installed on the punch press slide. The lower die 1 includes a punching lower cavity die 11 and a punching recess 12. The punching lower cavity die 11 has a countersunk hole 113 machined in the center, and the punching recess 12 is detachably installed in the countersunk hole 113. The punching recess 12 has a circular ring structure, and the inner hole of the punching recess 12 is the blanking hole. The outer diameter of the punching recess 12 is 0.1 mm smaller than the outer diameter of the countersunk groove at the top of the countersunk hole 113, and the two are in clearance fit.

[0016] The punching base is made of high-speed mold steel W6Mo5Cr4V2, which has excellent high temperature resistance and wear resistance. The punching lower cavity mold 11 is made of hot work mold steel H13.

[0017] In this embodiment, the thickness of the punching recess 12 is equal to the depth of the countersunk groove at the top of the countersunk hole 113. After the stabilizing rod is placed into the punching lower cavity mold 11, the outer edge of the stabilizing rod fits against the outer edge of the punching recess 12, and the bottom surface of the stabilizing rod fits against the top surface of the punching recess 12, so as to avoid leaving marks on the end of the stabilizing rod and causing product defects. The countersunk hole 113 of the punching lower cavity mold overlaps with the tapered hole 112 above, so as to facilitate the placement and removal of the stabilizing rod, and at the same time, to facilitate the removal and replacement of the punching recess 12.

[0018] The lower cavity die 11 for punching is fixedly connected to the lower cavity die mounting base 2. The lower cavity die mounting base 2 is used to fixally connect to the punch press worktable. The lower cavity die mounting base 2 is provided with a through hole 21. The through hole 21 is coaxial with the countersunk hole 113. The diameter of the through hole 21 is 2mm larger than the inner diameter of the punching recess 12 to facilitate smooth material feeding.

[0019] The upper mold assembly 3 includes a punching upper cavity mold 32 and an upper cavity mold mounting base 31. The punching upper cavity mold 32 and the upper cavity mold mounting base 31 are fixedly connected, and the upper cavity mold mounting base 31 is used to be fixedly connected to the punch press slide.

[0020] The upper punching cavity mold 32 is provided with a rod body clearance groove A321, and the lower punching cavity mold 11 is provided with a rod body clearance groove B111. Both the rod body clearance groove A321 and the rod body clearance groove B111 are adapted to the rod body of the stabilizing rod to avoid the rod body of the stabilizing rod and to position the rod body.

[0021] The method of using this utility model is as follows: 1. Place the end of the stabilizer bar into the lower module 1, so that the outer edge of the stabilizer bar is in contact with the outer edge of the punching recess 12, the bottom surface of the stabilizer bar is in contact with the top surface of the punching recess 12, and the body of the stabilizer bar is in the body clearance groove B. 2. Lower the punch press slide, which in turn lowers the upper die 3, causing the lower punching cavity die 11 and the upper punching cavity die 32 to close, thus positioning the stabilizer rod. 3. The punch 4 of the punch press descends and punches the end of the stabilizer bar. The scrap material under punching falls from the inner hole of the punching recess 12.

[0022] After a period of operation, when the inner hole of the punching recess 12 wears down, the punching recess 12 can be removed from the punching lower cavity mold 11 and replaced.

[0023] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A punching cavity mold for the end of a stabilizer bar in a commercial vehicle, characterized in that, The assembly includes a lower mold (1) and an upper mold (3). The lower mold (1) includes a punching lower cavity mold (11) and a punching recess (12). The punching lower cavity mold (11) has a countersunk hole (113) machined in the center. The punching recess (12) can be detachably installed in the countersunk hole (113). The punching recess (12) is a ring structure. The inner hole of the punching recess (12) is the blanking hole. The outer diameter of the punching recess (12) is smaller than the outer diameter of the countersunk groove at the top of the countersunk hole (113). The two are in clearance fit.

2. The commercial vehicle stabilizer bar end punching cavity mold according to claim 1, characterized in that, The thickness of the punching recess (12) is equal to the depth of the countersunk groove at the top of the countersunk hole (113); after the stabilizing rod is placed in the punching lower cavity mold (11), the outer edge of the stabilizing rod is in contact with the outer edge of the punching recess (12), and the bottom surface of the stabilizing rod is in contact with the top surface of the punching recess (12).

3. The commercial vehicle stabilizer bar end punching cavity mold according to claim 2, characterized in that, The countersunk hole (113) of the punching lower cavity mold overlaps with the tapered hole (112) above.

4. The commercial vehicle stabilizer bar end punching cavity mold according to claim 3, characterized in that, The punching lower cavity mold (11) is fixedly connected to the lower cavity mold mounting base (2). The lower cavity mold mounting base (2) is provided with a through hole (21). The through hole (21) is coaxial with the countersunk hole (113). The diameter of the through hole (21) is larger than the inner diameter of the punching bottom recess (12).

5. The commercial vehicle stabilizer bar end punching cavity mold according to claim 1, characterized in that, The upper mold assembly (3) includes a punching upper cavity mold (32) and an upper cavity mold mounting base (31), which are fixedly connected.

6. The commercial vehicle stabilizer bar end punching cavity mold according to claim 5, characterized in that, The upper punching cavity mold (32) is provided with a rod body clearance groove A (321), and the lower punching cavity mold (11) is provided with a rod body clearance groove B (111).

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