Deep chamber wall thickness measuring device and method
A technology of wall thickness measurement and deep cavity, which is applied in the field of precision measurement, can solve the problems of inaccurate measurement and inability to measure by the measurement device, and achieve the effect of strong operability, convenient measurement and convenient operation.
Inactive Publication Date: 2014-05-14
SHANGHAI SPACE PRECISION MACHINERY RES INST
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Problems solved by technology
[0009] In order to solve the problems of existing measurement devices such as inability to measure and inaccurate measurement, the object of the present invention is to provide a device and method for measuring the wall thickness of deep cavities
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[0018] An embodiment of a deep cavity wall thickness measuring device provided by the present invention will be described below with reference to the accompanying drawings.
[0019] figure 1 It is a structural diagram of the deep cavity wall thickness measuring device provided by the embodiment of the present invention; as figure 1 As shown in the embodiment, the device includes: an upper arm 9; a lower arm 10; a mandrel assembly 4 passing through one end of the upper arm 9, one end of the lower arm 10 and one end of the lever 3; The support arm 9, the lower support arm 10 and the lever 3 are connected; the other ends of the upper support arm 9 and the lower support arm 10 are respectively covered with a first measuring head 11 and a second measuring head (not shown); when not measuring, The first measuring head 11 and the second measuring head are closely attached, and the pointer of the dial indicator is zero, and the pointer of the small meter in the dial indicator is also...
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The invention provides a deep chamber wall thickness measuring device and method. The deep chamber wall thickness measuring device provided by the invention comprises an upper support arm and a lower support arm; a mandrel assembly penetrates through on end of the upper support arm, one end of the lower support and one end of a lever, and connects the upper support arm, the lower support arm and the lever; the other ends of the upper support arm and the lower support arm are sleeved by a first measuring head and a second measuring head which are tightly close to each other when measurement is not conducted; the other end of the lever is equipped with a jacking head, in measurement, the jacking head impacts an angle gauge which is connected with a dial indicator fixed to a support, and the dial indicator is fixed to the lower support arm; the lever drives a pointer of the dial indicator to deflect during rotation; the lever, the mandrel assembly, the jacking head and the angle gauge are packaged inside a housing; and a handle is mounted on the housing. The deep chamber wall thickness measuring device provided by the invention is simple in structure, convenient to operate, and strong in operability, thereby providing favorable resources for reduction of production costs.
Description
technical field [0001] The invention is used to solve the precision measurement of the wall thickness of the deep cavity, and the invention has convenient measurement and reasonable structure. [0002] Background technique [0003] In the production and manufacture of structural parts, complex thin-walled cylindrical casting structural products are often encountered. The total length of the product is generally long, generally close to 700mm-800mm. The product material is magnesium alloy castings, and the distribution of the product cavity structure varies in size The measurement of the wall thickness of various structural forms of bumps in the product processing process belongs to the measurement of the wall thickness of the deep cavity. The general measurement method cannot realize the measurement of the wall thickness of the deep cavity of the product. The main reasons are as follows: [0004] 1) Vernier caliper measurement can only measure the wall thickness at the posi...
Claims
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Inventor 唐水英昝林俞玉明潘华东徐敏赵毅良
Owner SHANGHAI SPACE PRECISION MACHINERY RES INST