Cold heading one-time forming device for semicircular special-shaped structure of automotive cushion block

Abstract

The utility model discloses a cold heading one-step forming device for a semicircular special-shaped structure of a vehicle cushion block, which is characterized by comprising a punching die structure arranged at the upper part and a top die structure arranged at the lower part, the stamping die structure comprises a stamping die, and a stamping die groove is formed in the inner circumference of the stamping die; a punching and pushing pipe is arranged in the punching die groove through an elastic structure and a first buffering cushion. A punching rod is arranged in the punching and pushing pipe; the top die structure comprises a top die, and a top die groove is formed in the inner circumference of the top die; a support is arranged in the top mold groove, and a top rod is arranged through a second buffer pad and the support; a fixing ring is arranged on the periphery of the position, extending out of the support, of the end of the ejection rod, and the punching and pushing pipe is combined with the punching rod to make contact with the upper end of a workpiece arranged in the fixing ring. And the ejector rod is in contact with the lower end of a workpiece arranged in the fixing ring. According to the utility model, the production efficiency of parts and the utilization rate of materials are improved to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of production and processing of semicircular special-shaped structure cushion blocks formed by cold heading in one step, in particular to a semicircular special-shaped structure cold heading in one step forming device for cushion blocks for vehicles. Background Art

[0002] The existing semicircular special-shaped structure pad is difficult to process due to its special-shaped structure. Therefore, it is very time-consuming and labor-intensive and not easy to process according to the existing processing method. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a one-step cold forging forming device for a semi-circular special-shaped structure of a vehicle cushion block.

[0004] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0005] A one-step cold forging forming device for a semicircular special-shaped structure of a vehicle cushion block, comprising:

[0006] A punch die structure disposed at the top and a top die structure disposed at the bottom;

[0007] The die structure comprises a die, and a die groove is arranged on the inner periphery of the die;

[0008] A punching and pushing pipe is arranged in the punching die groove through an elastic structure and a first buffer pad;

[0009] A punch rod is arranged inside the punch-push tube;

[0010] The top mold structure includes a top mold, and a top mold groove is arranged on the inner periphery of the top mold;

[0011] A second buffer pad is arranged in the top mold groove, and a top rod is arranged through the second buffer pad;

[0012] A fixing ring is arranged at the periphery of the position where the end of the push rod extends out of the bracket, and the punching tube is combined with the punching rod to contact the upper end of the workpiece arranged in the fixing ring;

[0013] The ejector rod contacts the lower end of the workpiece disposed in the fixing ring.

[0014] In a preferred embodiment of the utility model, a punch rod installation groove is provided through the punch push tube, and a first guide groove is provided at the tail end of the punch rod installation groove.

[0015] In a preferred embodiment of the present invention, the elastic structure is a spring arranged in a peripheral groove of the first buffer pad.

[0016] In a preferred embodiment of the present invention, the fixing ring is a double-layer ring structure, including an inner first tungsten steel ring and an outer second tungsten steel ring.

[0017] In a preferred embodiment of the utility model, a processed fixing end is provided at the position where the end of the push rod protrudes from the bracket.

[0018] In a preferred embodiment of the present invention, the top structure of the processed fixing end is a plane or a curved surface.

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

[0020] Through the one-step cold forging forming device of a semicircular special-shaped structure of a vehicle pad of the utility model, parts can be formed by cold forging in one step with smooth flow lines and mass production feasibility, and production efficiency and material utilization rate are maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0023] Figure 3 The processing diagram of the utility model is shown in FIG. Figure 1 .

[0024] Figure 4 The processing diagram of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] like Figure 1-3 The device for cold heading one-step forming of a semicircular special-shaped structure of a vehicle pad shown in the figure comprises a punch die structure arranged at the top and a top die structure arranged at the bottom.

[0027] The die structure includes a die 100, a die groove 110 is arranged on the inner periphery of the die 100, a punching tube 140 is arranged in the die groove through an elastic structure 120 and a first buffer pad 130, and a punching rod 150 is arranged inside the punching tube 140. The end of the punching rod 150 is limited by the first buffer pad 130.

[0028] A punch rod installation groove 141 is provided through the punch push tube 140 , and the punch rod 150 is provided in the punch rod installation groove 141 . A first guide groove 142 is provided at the tail end of the punch rod installation groove 141 . The purpose of providing the first guide groove 142 is to achieve smooth guidance of the punch rod 150 .

[0029] The elastic structure 120 is a spring disposed in the outer peripheral groove of the first buffer pad 130. The elastic structure 120 is disposed to improve the buffering elasticity of the first buffer pad 130.

[0030] The top mold structure includes a top mold 200 , a top mold groove 210 is arranged on the inner periphery of the top mold 200 , a second buffer pad 230 is arranged in the top mold groove 210 , and a top rod 240 that runs through the top mold 210 is arranged through the second buffer pad 230 .

[0031] A fixing ring 250 is arranged on the periphery of the position where the end of the push rod 240 extends out of the bracket 220, and the punch tube 140 and the punch rod 150 are in contact with the upper end of the workpiece 300 arranged in the fixing ring 250, and the punch rod 150 is used to process the specific position of the upper end that needs to be processed.

[0032] The push rod 240 contacts the lower end of the workpiece disposed in the fixing ring 250 , and the specific position of the lower end that needs to be processed is processed by the push rod 240 .

[0033] The fixing ring 250 is a double-layer ring structure, including an inner first tungsten steel ring 251 and an outer second tungsten steel ring 252. The number of fixing rings 250 can be changed according to actual processing requirements.

[0034] The end of the top rod 240 extends out of the bracket 220 and is provided with a processing fixed end 260 on the periphery. According to the actual processing requirements, the top structure of the processing fixed end 260 is a plane ( Figure 1 ) or curved surface ( Figure 2 ).

[0035] The processing of chamfers, round holes and semicircular notches is achieved by the cooperation of the punch die 100 and the top die 200. The main processing steps include step 1 (cutting), step 2 (chamfering), step 3 (preforming), step 4, hole chamfering, step 5 (hole fixing), step 6 (hole drawing), and step 7 (waste removal).

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

Claims

1. A semi-circular special-shaped cold forging one-step forming device for a vehicle cushion block, characterized in that: include: A punch die structure disposed at the top and a top die structure disposed at the bottom; The die structure comprises a die, and a die groove is arranged on the inner periphery of the die; A punching and pushing pipe is arranged in the punching die groove through an elastic structure and a first buffer pad; A punch rod is arranged inside the punch-push tube; The top mold structure includes a top mold, and a top mold groove is arranged on the inner periphery of the top mold; A second buffer pad is arranged in the top mold groove, and a top rod is arranged through the second buffer pad; A fixing ring is arranged at the periphery of the position where the end of the push rod extends out of the bracket, and the punching tube is combined with the punching rod to contact the upper end of the workpiece arranged in the fixing ring; The ejector rod contacts the lower end of the workpiece disposed in the fixing ring.

2. A semicircular special-shaped cold heading one-step forming device for a vehicle cushion block as claimed in claim 1, characterized in that: A punch rod installation groove is provided through the punch push tube, and a first guide groove is provided at the tail end of the punch rod installation groove.

3. A semicircular special-shaped cold heading one-step forming device for a vehicle cushion block as claimed in claim 1, characterized in that: The elastic structure is a spring arranged in the outer peripheral groove of the first buffer pad.

4. A semicircular special-shaped cold heading one-step forming device for a vehicle cushion block as claimed in claim 1, characterized in that: The fixing ring is a double-layer ring structure, including a first tungsten steel ring on the inner side and a second tungsten steel ring on the outer side.

5. The semicircular special-shaped cold heading one-step forming device for a vehicle cushion block as claimed in claim 1, characterized in that: A processed fixing end is arranged at the position where the end of the push rod protrudes out of the bracket.

6. A semicircular special-shaped cold heading one-step forming device for a vehicle cushion block as claimed in claim 5, characterized in that: The top structure of the processed fixed end is a plane or a curved surface.

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