Stamping technology and stamping mold for shock-absorber connecting rod
A stamping die and shock absorber technology, applied in the mechanical field, can solve problems such as hole distance deviation, product instability, and affecting workpiece functionality
Active Publication Date: 2015-12-16
WUXI ZHONGJIE VIBRATION ISOLATORS
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Problems solved by technology
Among the size requirements of the shock absorber connecting rod, the size requirement of the stretching barrel is very high. The deformation of the barrel directly affects the functionality of the workpiece. The later punching positioning of the shock absorber connecting rod is based on the stretching barrel, resulting in The hole distance produces a large deviation, and the product is very unstable
Method used
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[0023] The present invention will be further described below in conjunction with the specific drawings.
[0024] The shock absorber connecting rod stamping process of the present invention includes the following steps:
[0025] (1) as Figure 5-1 As shown in the figure, the raw material of the workpiece is stretched out to obtain a stretching barrel, which ensures a certain taper, and the taper α / 2 is generally 15°;
[0026] (2) Flanging: use a tapered punch to position the stretching barrel during flanging to keep the shape of the stretching barrel from being greatly deformed. Because the stretching barrel has a certain taper, it also makes the workpiece easier to unload. material;
[0027] (3) After the flanging is completed, punch the bottom of the stretching barrel, and the punching holes on the bottom and flanging are ?12.25 and ?14.5 ( figure 2 Hole A and Hole B) in e.g. Image 6 The molds shown are carried out at the same time, so that it is easy to ensure the posi...
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The invention discloses a stamping technology and mold for a shock-absorber connecting rod. The stamping technology is characterized by comprising the following steps: (1) enabling workpiece raw materials to be stretched so as to obtain a tensile barrel, wherein the tensile barrel is guaranteed to have a certain conical degree; (2) flanging and positioning the tensile barrel by adopting a conical punch during flanging; and (3) after finishing flanging, simultaneously performing bottom stamping on the tensile barrel, wherein bottom stamping and flange hole punching are performed by using the mold at the same time. The conical degree of the tensile barrel in the step (1) is 15 degrees. Through the adoption of the stamping technology disclosed by the invention, the relative position degree of holes are ensured, so that affect on position degree due to deviation of a single hole is avoided; the tensile barrel is shaped after flanging, so that the stability of the size of the tensile barrel is also guaranteed, and the influences of subsequent procedures, namely trimming and stamping the bottom of the tensile barrel, on the tensile barrel, are avoided.
Description
technical field [0001] The invention relates to a shock absorber connecting rod punching process and a punching die, belonging to the technical field of machinery. Background technique [0002] In the prior art, the shock absorber connecting rod stamping process is to first stretch the stretching barrel at one end of the workpiece in place, the diameter a is ?38.25, and electrophoretic paint is required in the later stage, and the height b of the stretching barrel is 24.6 (such as image 3 , Figure 4 shown). After the size of the stretching barrel is in place, the outer flanging of the workpiece is flanged and shaped. During the process of flanging and shaping, the material moves to a certain extent, causing the size of the stretching barrel in the middle to be deformed, the height of the barrel and the size of the barrel. The roundness is greatly deformed. Among the size requirements of the shock absorber connecting rod, the size requirements of the stretching barrel are...
Claims
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Login to View More IPC IPC(8): B21D35/00B21D37/10
CPCB21D35/002B21D37/10
Inventor 魏忠倪西鲁
Owner WUXI ZHONGJIE VIBRATION ISOLATORS