Spiral micrometer tool for measuring thickness of SMT steel mesh
A technology of spiral micrometry and tooling, applied in the direction of mechanical thickness measurement, etc., can solve the problems of affecting the strength of steel sheets and short maximum distance
Inactive Publication Date: 2015-06-03
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
When measuring, the steel sheet is placed between the small anvil and the micrometer screw. However, the maximum distance between the frame of the screw micrometer and the micrometer screw is relatively short. It can only measure the thickness of the steel sheet at the edge of the SMT stencil, and the steel sheet in the middle Only the small piece can be removed for measurement, and the removal of the small piece will affect the overall strength of the steel piece
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[0026] The purpose of the present invention is to provide a spiral micrometer tool for the thickness of SMT steel mesh. The structural design of the spiral micrometer tool for the thickness of the SMT steel mesh can measure the thickness of the middle steel sheet of the SMT steel mesh without affecting its strength.
[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0028] See Figure 1-Figure 2 , The spiral micrometering tool for the thickness of SMT steel mesh provided by the embodimen...
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The invention discloses a spiral micrometer tool for measuring thickness of SMT (surface mounted technology) steel mesh. The spiral micrometer tool comprises a framework, a small anvil, a micrometer screw, a fixing sleeve, a microdrum and a force measurement device, wherein the framework comprises a first arm rod, a second arm rod parallel to the first arm rod and a connection rod for connecting the first arm rod with the second arm rod, wherein one end of the first arm rod is fixedly connected with the fixing sleeve, and the other end of the first arm rod is fixedly connected with one end of the connection rod; one end of the second arm rod is fixedly connected with the small anvil, and the other end of the second arm rod is fixedly connected with the other end of the connection rod; furthermore, the lengths of the first arm rod and the second arm rod are not smaller than 1 / 2 of the width of the SMT steel mesh to be measured. When the spiral micrometer tool is a non digital display spiral micrometer tool, scales are supposed to be formed on the fixing sleeve and the microdrum, so that reading is facilitated, and the thickness of a steel sheet of the SMT steel mesh can be determined. By use of the structural design of the spiral micrometer tool for measuring the thickness of the SMT steel mesh, the thickness of the middle steel sheet of the SMT steel mesh can be measured without affecting the intensity of the steel mesh.
Description
Technical field [0001] The invention relates to the technical field of surface mounting, and more specifically, to a spiral micrometer tool for the thickness of SMT steel mesh. Background technique [0002] SMT (Surface Mounted Technology) is a surface mount technology, which is currently the most popular technology and process in the electronics assembly industry. Among them, the SMT stencil is a special mold for SMT technology, and its main function is to help the deposition of solder paste, so as to transfer an accurate amount of solder paste to an accurate position on an empty PCB (Printed Circuit Board). The thickness of the steel sheet of the SMT steel mesh plays an important role in the tinning effect in the surface mount technology. If the thickness of the steel sheet has a deviation, it is prone to poor tinning, which will affect the quality of the processed parts, such as air conditioning control Therefore, the thickness of the SMT steel mesh must be tested before usin...
Claims
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Inventor 蔡锐凯方祥建黄才笋颜小林董明景邓卫勇
Owner GREE ELECTRIC APPLIANCES INC