Application method of positioning work fixture for precision box-type sensor welding
A welding positioning tooling and sensor technology, applied in the field of welding tooling fixtures, can solve problems such as inaccurate positioning, poor installation visibility, relative slippage of components, etc., and achieve the effects of convenient observation and adjustment, avoiding damage, and preventing relative slippage
Active Publication Date: 2016-04-20
TIANJIN UNIV
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Problems solved by technology
At present, the positioning fixture used by the production unit has poor installation visibility and inaccurate positioning, and the relative slippage of the components will occur during the clamping process, which cannot guarantee the welding positioning accuracy requirements of the box-type sensor components, and the geometric dimensions of the components after welding have large deviations. , the product qualification rate is low
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[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.
[0029] as attached figure 1 As shown in -3, the existing box-type sensor is composed of a body A, a base B, a cover plate assembly C and an extension plate D, and the extension plate D extends into the middle hole E of the cover plate assembly C, and is connected with the The gap width of the upper and lower edges is the same, and the error is not more than ±0.02mm. This requires that in the spot welding connection between the cover assembly C and the body A, the relevant components of the box-type sensor should be adjusted and fixed in advance according to the error requirements.
[0030] as attached Figure 4 As shown in -5, the positioning fixture of this patent includes an upper plate 1, a middle plate 2, a lower plate 3, a guide rail sleeve 4, a column 5, a heat dissipati...
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The invention discloses an application method of a positioning work fixture for precision box-type sensor welding. The application method includes: pulling an upper plate and fixedly mounting a body of a box-type sensor in a groove of a horizontal portion of a middle plate; mounting a cover plate component on the body by penetrating through an extension plate, using a heat dissipation clamping device for clamping the cover plate component and the body, and enabling springs in the compression state to provide precompression force so as to avoid generation of relative slippage; moving the fixture to a microscope integrally for observation, and observing via an observation window in the center of the upper plate prior to adjusting; after adjustment is completed, pulling a handle of a quick clamp to enable a clamping portion of the quick clamp to butt against a vertical portion of the middle plate. The application method has the advantages that through coordination of the springs, the quick clamp and the heat dissipation clamping device, clamping of the body of the box-type sensor and the cover plate component is completed; by the aid of the heat dissipation clamping device, heat conduction can be achieved during welding while clamping force is used; since the observation window is arranged directly, observation and adjustment of the sizes required by welding are facilitated.
Description
[0001] The application of the present invention is a divisional application of the parent application "a positioning fixture for precision box-type sensor welding and its use method". The application number of the parent application is 2015102715535, and the filing date of the parent application is May 2015. 25th. technical field [0002] The invention relates to a welding fixture, in particular to a positioning fixture for precision box-type sensor welding and a method for using the same. Background technique [0003] A precision box-shaped structure sensor is often a high-precision component sensor that can be used to detect information such as displacement, velocity, force, and acceleration. Sensor components are often machined multiple times from a variety of materials. The quality of the welding and forming of the final box-shaped component is directly related to the system accuracy and technical parameters of the entire sensor. At present, the positioning fixture use...
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IPC IPC(8): B23K37/04
CPCB23K37/0443
Inventor 申俊琦宋昆阳胡绳荪
Owner TIANJIN UNIV