Clearance measurement clamp
A technology for measuring jigs and fixtures, which is applied in the direction of mechanical clearance measurement, etc.
Active Publication Date: 2014-06-11
DONGFENG AUTOMOBILE ELECTRONICS
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Problems solved by technology
During production, manual hand pulling is used to confirm whether there is enough needle shaft clearance and its size, which is not accurate enough to ensure that the needle shaft clearance is reasonable.
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[0018] Such as Figure 1 to Figure 5 shown. A gap measuring fixture of the present invention is composed of a fixture main body, a clamping mechanism, a measuring mechanism, a movement positioning mechanism and a lifting mechanism. Among them, the fixture body is a fixture body assembled from machined parts, which is used to install and fix the parts and components of the fixture. The fixture bottom plate 1 and fixture bracket 6 are processed into a semi-shaped shape with steel materials, and the structure is simple. The clamping mechanism is arranged in the middle part of the right side of the fixture, and consists of a needle clamp plate 10, a small shaft 11, a short pin 12, an inclined block 13, a pressure spring 14, a rotating shaft 15, a hand wheel 16, a pin 17, a needle holder 18 and a needle spring 26 poses. After the needle clip spring 26 is assembled with the needle clip plate 10, it is fixed on the left end of the needle holder 18 through two small shafts 11. After...
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The invention relates to a clearance measurement clamp and belongs to the technical field of automotive instrument cross coil machine core assembling. With the clearance measurement clamp adopted, the problem of inaccurate determination of a pin shaft clearance and the size thereof by manual drawing can be solved. The clearance measurement clamp is characterized in that the clamp is composed of a main clamp body, a clamping mechanism, a measuring mechanism, a machine core positioning mechanism and a lifting mechanism. Specifically, the main clamp body is formed by a base plate and a support; the clamping mechanism includes a pin clamping plate, a small shaft, a short pin, an inclined block, a pressure spring, a rotating shaft, a handwheel, a pin, a pin clamping spring, and a pin clamping seat; the measuring mechanism includes a measuring head, a first inner hexagonal head screw, a dial indicator, a shaft sleeve and a limit rod; the machine core positioning mechanism consists of a spring, a positioning seat and a guide rod; and the lifting mechanism comprises an eccentric wheel, a supporting seat, a second inner hexagonal head screw, an eccentric wheel shaft, a cover and a cross recess screw. The clearance measurement clamp of the invention is advantageous in convenient operation, precise measurement, low cost, and simple and practical structure, and can be applied to the technical field of the automotive electronic type meter machine core and micro-displacement changing measurement.
Description
technical field [0001] The invention belongs to the technical field of assembling a cross coil core of an automobile instrument, and can also be applied to the measurement of micro-displacement changes. In particular, it relates to a fixture for measuring the axial gap of a needle shaft of a cross coil movement. Background technique [0002] A few days ago, in the production of automobile instrument products, it is necessary to ensure that the pointer can rotate normally, that is, the gap between the needle shaft of the instrument meets the product design requirements. During production, manual hand pulling is used to confirm whether there is enough needle shaft clearance and its size, which is not accurate enough to ensure that the needle shaft clearance is reasonable. If there is no ready-made testing equipment for the axial clearance of the movement, it is necessary to design a pair of measuring fixtures. After passing the test, the needle shaft clearance can be ensured ...
Claims
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IPC IPC(8): G01B5/14
Inventor 韦军刘亚萍曾强杨健杨小兵王太斌
Owner DONGFENG AUTOMOBILE ELECTRONICS