Pre-pressing mechanism for upper die and stamping riveting die
A pre-pressing and mold technology, applied in the field of pre-pressing mechanism and stamping riveting mold, can solve the problems of reducing the stability and service life of the mold, being susceptible to temperature changes and on-site oil pollution, etc. Good effect and stable force
Pending Publication Date: 2021-09-07
GUILIN FUDA
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Problems solved by technology
See Figure 4 , using the elasticity of the pre-pressing rubber itself to connect with the punch, and set it on the outside of the punch to realize the elastic pre-pressing of the part first, and then the punch is in contact with the rivet for riveting and forming; in this method, the pre-pressing rubber will directly contact the surface of the part, It is easily affected by temperature changes and on-site oil pollution, which reduces the stability and service life of the mold
Method used
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[0022] The invention will be specifically described in detail below with reference to the examples, as will be described, is merely a part of the embodiments of the present application, not all of the embodiments. Based on the present embodiment, one of ordinary skill in the art is in the range of the claims of this application without making creative labor premistence.
[0023] See figure 1 with figure 2 A stamping riveting mold comprising a pre-compressor mechanism, a upper mold plate 1, a fixing plate 2, and a riveting head 3 mounted at the bottom of the fixed plate 2, and the pre-pressing mechanism comprises an annular plate 7, a preloading tube, and a fixed device.
[0024] The pre-pressing cartridge includes a spring 6, a cylinder 4, and a guide column, and the cylinder 4 is vertically disposed, and the outer wall of the tip end of the cylinder 4 is provided with a first annular boss 4-1, and the inner wall of the bottom end of the cylinder 4 is provided with a second ring c...
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Abstract
The invention belongs to the field of die equipment for machining, and particularly relates to a pre-pressing mechanism for an upper die and a stamping riveting die. The pre-pressing mechanism comprises an annular plate, a pre-pressing cylinder and a fixing device; the pre-pressing cylinder comprises a spring, a cylinder and a guide column; the guide column is restrained by the inner wall of the cylinder and can only slide up and down; the guide column is limited due to the fact that a third annular boss at the top end of the guide column is supported by a second annular boss at the bottom end of the cylinder; the annular plate is horizontally arranged, a mounting through hole for containing the cylinder is arranged on the annular plate face; the inner diameter of the mounting through hole is matched with the outer diameter of the cylinder; the stamping riveting die comprises a riveting punch; the guide column is a hollow pipe; during use, the cylinder is arranged in the mounting through hole; the fixing device comprises at least three L-shaped connecting rods; and the lower portion of the riveting punch is inserted into the hollow pipe. The pre-pressing mechanism provided by the invention is convenient to replace and maintain, and the stamping riveting die is good in stamping and riveting effect and long in service life.
Description
Technical field [0001] The present invention is belonging to the field of machining mold, which specifically relates to a preload mechanism and a stamped riveting mold for upper mold. Background technique [0002] The mold is typically composed of upper mold and lower mold, and the upper mold includes an upper molding plate, a fixing plate, and a punch in the bottom of the fixed plate, and a pre-pressing mechanism is provided between the upper and lower molds for detecting or orientation, existing preload Institutions have a resilient guide column, see image 3 The existing elastic guide column is connected to the upper mold, the spring is disposed on the top surface of the guide column, in order to give the guide column up and down, the pad must be increased between the upper die plate and the fixed plate, and the guide column is provided in the pad. Spring receiving chamber, guide column, and spring, because it is easy to wear, often needs to be replaced, each replacement requir...
Claims
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Login to View More IPC IPC(8): B21J15/10B21J15/38
CPCB21J15/10B21J15/38
Inventor 梁莉羚郑茂梁广才
Owner GUILIN FUDA