Assistive device for detecting position dimensions of pin holes
A technology of hole position and detection pin, which is applied in the direction of measuring device, mechanical measuring device, and mechanical device, etc., can solve the problems of unintuitive data, long detection cycle, affecting production efficiency, etc., and achieve the effect of improving detection efficiency
Active Publication Date: 2015-03-11
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
[0004] However, the detection operation of the three-coordinate measuring machine is complicated, the data is not intuitive, conversion is required, and the detection cycle is long, which affects production efficiency
Method used
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[0022] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0023] see figure 1 with figure 2 , the auxiliary device for detecting the position and size of the pin hole includes: a base plate 1 and a splint 2 and a pin hole positioning rod 3 fixed between the base plate 1 and the splint 2 . Wherein, the bottom plate 1 is a rectangular plate shape, four cuboid pads 11 are fixed at the four corners of the bottom surface on the left side, two cuboid pads 11 are fixed on the middle part of the top surface on the right side, and the middle part of the bottom plate 1 also has two through holes 13 and A through hole 14; splint 2 is also a rectangular plate shape, the upper side and the front side are respectively fixed with a bridge handle 12 by screws, and the middle part has two t...
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The invention discloses an assistive device for detecting position dimensions of pin holes. The assistive device comprises a bottom plate, a clamping plate, a pin hole positioning rod and a chamfered-edge taper pin, wherein two ends of the pin hole positioning rod are respectively fixed on the bottom plate and the clamping plate, a spring is sleeved on the chamfered-edge taper pin, and a cushion block is fixed on the end face on the inner side of the bottom plate. When the assistive device performs clamping, the pin hole positioning rod coaxially penetrates through a screw hole of a cylinder cover, and one end of the pin hole positioning rod extends out of the bottom end face of the bottom plate. One end of the chamfered-edge taper pin coaxially abuts against a blank bottom hole of a valve retainer of the cylinder cover, and the other end of the chamfered-edge taper pin extends out of the bottom end face of the bottom plate. One end face of the cylinder cover abuts against the cushion block, and positioning space of the chamfered-edge taper pin is formed between the cylinder cover and the bottom plate. By utilizing a height gauge to detect the position dimensions of the pin holes through the pin hole positioning rod and the chamfered-edge taper pin, the detection efficiency is greatly improved.
Description
technical field [0001] The invention relates to the field of diesel engines, in particular to an auxiliary tool for detecting the position and size of pin holes. Background technique [0002] The process pin hole is processed on the cylinder head blank, and the bottom hole of the valve seat ring blank on the cylinder head is used as the positioning reference. After the pin hole is processed, the remaining holes on the cylinder head are processed in reverse. Therefore, the processed pin hole is very important to the remaining hole and surface processing, and it is necessary to check whether the position and size deviation is within the allowable range, so as to determine whether the pin hole is qualified. Processing one batch of workpieces and another batch of workpieces will cause the position deviation of the machining pin hole to change due to the variation or unevenness of the casting allowance of the reference blank hole. Detect the position and size of the pin hole pro...
Claims
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IPC IPC(8): G01B5/00G01B5/02
Inventor 李东桓谭岂凡
Owner GUANGXI YUCHAI MASCH CO LTD