A method for measuring the load force of a fixture
A technology for measuring fixtures and measuring methods, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc. It can solve the problem of inability to respond accurately, judge the load force of fixtures quickly, and affect the service life of fixtures And other issues
Active Publication Date: 2017-01-04
SHANDONG LANDBRIDGE PETROCHEMICAL CO LTD
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Problems solved by technology
[0002] In the design and manufacture of fixtures in the automobile manufacturing industry, the load force of the fixture reflects the fluctuation of the fixture positioning dimension of the mechanism under long-term stress. The confirmation of the mechanism load force of the fixture is only based on empirical evaluation, which often cannot accurately reflect the real state.
At present, there is no easy way to measure the load force of the fixture. It is impossible to quickly judge the load force of the fixture during fixture debugging and tooling delivery, which leaves a great hidden danger to the stability of the fixture during the mass production process. Affect the service life of the fixture
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[0018] figure 1 It is a structural schematic diagram of the measuring device in the method for measuring the load force of the fixture according to the present invention, figure 2 It is a schematic diagram of the cooperation structure of the pulley lever and the guide rail in the present invention. Depend on Figure 1-2 Combining the shown structures, it can be seen that the method for measuring the load force of the fixture includes:
[0019] 1) Fix the base 1 of the measuring device on the horizontal surface by bolts; the measuring device includes the base 1 and the column 2 installed vertically with the base 1, the base 1 and the column 2 are welded together, and the four The corners are respectively provided with a bolt mounting hole. The column 2 is provided with a guide rail 4 for fixing the pulley lever 3, one end of the pulley lever 3 is fixed on the guide rail 4, and the guide rail 4 is provided with several draw-in slots for fixing the pulley lever 3, the pulley ...
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The invention discloses a method for measuring the loading capacity of a clamp. The method comprises the steps that (1) a base of a measuring device is fixed to a horizontal plane through bolts; (2) the height of a pulley lever is adjusted, so that when the pulley lever and a clamp mechanism to be measured are located on the same horizontal line, the pulley lever is fixed to the inner portion of a guide rail; (3) one end of a lifting rope penetrates through a pulley and connected with a weight and a lifting ring at the other end of the lifting rope is fixed to the portion, needing to be measured, of the clamp mechanism to be measured; (4) unbalance loading capacity of the clamp mechanism is measured through a portable three-coordinate measuring instrument, a measured value is compared with data of the clamp mechanism to be measured in the non-stress state, and therefore a deviation value is obtained. According to the method for measuring the loading capacity of the clamp, the clamp loading capacity measuring device and the clamp are fixed on the same plane, the deviation amount of the clamp mechanism to be measured is measured through the drooping force of the weight, and according to change of the data measured through the portable three-coordinate measuring instrument before and after the clamp is stressed, whether the loading capacity of the clamp is qualified or not is judged, and influence caused by the fluctuation quantity of the clamp in the stress state to the size of a vehicle body is avoided.
Description
technical field [0001] The invention relates to a method for measuring the load force of a clamp. Background technique [0002] In the design and manufacture of fixtures in the automobile manufacturing industry, the load force of the fixture reflects the fluctuation of the fixture positioning dimension of the mechanism under long-term stress. The confirmation of the mechanism load force of the fixture is only based on empirical evaluation, which often cannot accurately reflect the real state. . At present, there is no easy way to measure the load force of the fixture. It is impossible to quickly judge the load force of the fixture during fixture debugging and tooling delivery, which leaves a great hidden danger to the stability of the fixture during the mass production process. Affect the service life of the fixture. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for measuring the load force of the fi...
Claims
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IPC IPC(8): G01M13/00
Inventor 周军刘萍方崇武童培易唐萍刘国莉晋启云
Owner SHANDONG LANDBRIDGE PETROCHEMICAL CO LTD