Hole positioning tensioning device
A tensioning device and hole positioning technology, which is applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve problems such as poor stability and axial displacement, and achieve the effect of preventing positioning failure and eliminating positioning gaps
Active Publication Date: 2011-09-07
WUHAN WUYAO SAFETY GLASS CO LTD
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Problems solved by technology
The front end of the coaxial positioning rod has two upper and lower cylinders that are coaxial with each other. The lower cylinder is matched with the reference hole, and the upper positioning cylinder is matched with the hole to be positioned. Due to the manufacturing tolerance of the hole to be positioned , there is a gap between the positioning hole and the coaxiality rod. In order to reduce or eliminate the positioning gap, the cylinder at the rear end of the coaxiality positioning rod needs to be adapted according to the hole tolerance or changed to a tapered surface; however, the taper Although the structure can eliminate the gap, as the diameter tolerance changes, axial displacement will also occur, and the stability of the contact positioning of the positioning hole with the cone structure is poor
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[0008] Such as figure 1 As shown, the hole positioning and tensioning device includes a coaxiality positioning rod 1. The front end of the coaxiality positioning rod 1 is a cylinder, and the rear part of the cylinder is a cone coaxial with it. In addition, the hole positioning and tensioning device is also provided with There are a guide sleeve 4 and an elastic expansion sleeve 2, the elastic expansion sleeve 2 is set on the cone of the coaxiality positioning rod 1, the guide sleeve 4 is set on the rod body at the rear of the cone of the coaxiality positioning rod 1, The guide sleeve 4 is equipped with a spring 5 inside, and the spring 5 is installed between the guide sleeve 4 and the rod body of the coaxiality positioning rod 1. The two ends of the guide sleeve 4 are respectively installed with a retaining spring nut 6 and a retaining sleeve nut 3. The elastic expansion sleeve The inner cavity wall of 2 is a conical surface configured with the coaxial positioning rod 1, and o...
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The invention relates to a hole coaxial positioning device, in particular to a hole positioning tensioning device capable of obtaining precise coaxiality of a to-be-positioned hole with a reference hole. The hole positioning tensioning device comprises a coaxiality positioning rod, wherein the front end of the coaxiality positioning rod is a column body; the rear part of the column body is a coaxial taper body; the device further comprises a guide sleeve, and an elastic expansion sleeve; the elastic expansion sleeve is sleeved on the taper body of the coaxiality positioning rod; the guide sleeve is sleeved on the rod body at rear part of the coaxiality positioning rod; the guide sleeve is internally provided with a spring; the spring is arranged between the guide sleeve and the coaxiality positioning rod body; two heads of the guide sleeve are provided with a baffle spring nut and a baffle sleeve nut; the inner chamber wall of the elastic expansion sleeve is a taper surface configured with the coaxiality positioning rod body; and one end of the elastic expansion sleeve is connected with the guide sleeve through the baffle sleeve nut.
Description
technical field [0001] The invention relates to a hole coaxial positioning device, in particular to a hole positioning tensioning device capable of obtaining precise coaxiality between a hole to be positioned and a reference hole. Background technique [0002] For the glass manufacturing industry, when the positioning hole and the reference hole of the glass product are coaxially positioned using conventional methods, the coaxiality positioning rod is generally used for positioning. The front end of the coaxial positioning rod has two upper and lower cylinders that are coaxial with each other. The lower cylinder is matched with the reference hole, and the upper positioning cylinder is matched with the hole to be positioned. Due to the manufacturing tolerance of the hole to be positioned , there is a gap between the positioning hole and the coaxiality rod. In order to reduce or eliminate the positioning gap, the cylinder at the rear end of the coaxiality positioning rod needs...
Claims
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IPC IPC(8): G01B5/252
Inventor 刘曙军
Owner WUHAN WUYAO SAFETY GLASS CO LTD