Semi-floating piston pin press-fitting device
A press-fitting device and piston pin technology, which is applied in the field of press-fitting tooling, can solve the problems of low versatility, bent piston pins, and inability to adapt to new sizes, etc., and achieve the effect of strong versatility and improved press-fitting accuracy
Inactive Publication Date: 2019-10-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
However, when using this method to press-fit the piston pin, it is entirely dependent on the piston pin itself for guidance, which may easily cause the piston pin to scratch the inner wall of the hole due to the misalignment of the hole position during the press-fitting process, and make the gap between the piston pin and the pin hole The occurrence of gaps can also easily lead to bending of the piston pin after press fitting, so that the assembly quality of the piston 3 and the piston connecting rod 4 cannot be effectively guaranteed
At the same time, when the size of the piston 3 or the piston connecting rod 4 changes, the traditional tooling will not be able to adapt to the new size, the versatility is low, and it cannot meet the assembly of various types of piston 3 and piston connecting rod 4
Method used
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[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0040] Please also refer to figure 1 and figure 2 , the embodiment of the present invention provides a semi-floating piston pin press-fitting device, including a base 100, a center distance adjustment module 300, a height adjustment module 400, a support block 200, a guide shaft 600 and a guide rod 500; wherein, the base 100 There is an adjustment gap 110 on the top; the center distance adjustment module 300 is slidably connected with the adjustment gap 110, and the center distance adjustment module 300 has a set sliding stroke range; ...
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The invention discloses a semi-floating-type press-fitting device for a piston pin. The semi-floating-type press-fitting device comprises a base, a center distance adjusting module, a height adjusting module, a supporting block, a guiding shaft and a guiding pressure rod. An adjusting opening is formed in the base, the center distance adjusting module is slidably connected with the adjusting opening, and the height adjusting module is slidably arranged above the center distance adjusting module; the supporting block is fixedly arranged on the base, a guiding hole is formed in the supporting block, a guiding shaft slidably penetrates through the guiding hole, and an elastic element is fixedly arranged at the end, stretching into the supporting block, of the guiding shaft; a first blind hole is formed in the end, protruding out of the supporting block, of the guiding shaft, and the guiding pressure rod comprises a guiding section and a press-fitting section; and the guiding section is matched with the first blind hole, and the diameter of the press-fitting section is larger than that of the guiding section. According to the semi-floating-type press-fitting device for the piston pin, the press-fitting requirements of pistons and connecting rods of different specifications are met, meanwhile pre-guiding is provided for press-fitting, and the press-fitting quality is improved.
Description
technical field [0001] The invention relates to a press-fitting tool, in particular to a semi-floating piston pin press-fitting device. Background technique [0002] The traditional press-fitting of piston pins is generally realized by special tooling. figure 1 It is a state diagram of piston pin pressing tooling in the prior art in operation, such as figure 1 As shown, the piston pin press-fitting tooling in the prior art includes a base 1 and a pressure head, wherein the base 1 is used as a supporting tool for supporting the pre-assembled piston 3 and piston connecting rod 4, and a pressure head is used to push the piston pin Press into the piston connecting rod 4 to complete the connection of the piston pin, the piston 3 and the piston connecting rod 4. However, when using this method to press-fit the piston pin, it is entirely dependent on the piston pin itself for guidance, which may easily cause the piston pin to scratch the inner wall of the hole due to the misalign...
Claims
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IPC IPC(8): B23P19/02B25B27/08
CPCB23P19/02B25B27/08
Inventor 李浩张来文刘海报詹坤陶晓龙闫敏张宝平刘飞
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD