Rotary spherical fixed pressure grinding control device
A control device and constant pressure technology, applied in the field of CNC machine tools, can solve problems such as difficulty in ensuring dimensional accuracy, and achieve the effects of avoiding grinding burns, being easy to implement, and having a simple connection method.
Inactive Publication Date: 2010-03-03
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
However, this type of grinding disc is mainly used for polishing the workpiece to be processed. If it is used for high-precision precision grinding, it is difficult to ensure dimensional accuracy
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[0016] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0017] like figure 1 and figure 2 As shown, this implementation includes: a wheelhead workbench part 1 and a wheelhead slider part 2, wherein: the wheelhead slide part 2 is movably arranged on the wheelhead workbench part 1.
[0018] The wheelhead workbench part 1 includes: a wheelhead workbench 3, a linear guide rail 4, a ball screw 5, a screw nut 6, a torque meter 7, a servo motor 8, a bearing 9 and a lock nut 10, wherein: the ball The screw rod 5 and the bearing 9 are respectively installed in the bearing seat 9 of the grinding wheel head table 3, the servo motor 8 is installed on the left side of the grindin...
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The invention relates to a rotary spherical fixed pressure grinding control device belonging to the technical field of numerical control machines and comprising a grinding carriage worktable componentand a grinding carriage sliding seat component, wherein the grinding carriage sliding seat component is movably arranged on the grinding carriage worktable component; the grinding carriage worktablecomponent comprises a grinding carriage worktable, a linear guide rail, a ball screw, a feed screw nut, an eddy current dynamometer, a servo motor, a bearing and a locking nut, wherein the ball screwand the bearing are respectively arranged in a bearing seat of the grinding carriage worktable; the servo motor is arranged on the left side of the grinding carriage worktable; and an output shaft ofthe servo motor is connected with the ball screw through the eddy current dynamometer. The rotary spherical fixed pressure grinding control device indirectly detects the action force of a grinding tool on the surface on a workpiece to be processed through the eddy current dynamometer, and the connection method is simple and easy to realize, through the control of grinding pressure, the grinding feed speed and the grinding removing rate are kept consistent, the phenomenon of grinding burn or stopping vehicle can be avoided and the optimal grinding effect is achieved.
Description
technical field [0001] The invention relates to a device in the technical field of numerical control machine tools, in particular to a rotary spherical surface constant pressure grinding control device. Background technique [0002] High-hardness and high-precision rotary ball is a key component in high temperature resistant, high pressure resistant and wear resistant ball valves. This type of ball valve is subjected to very harsh working conditions. In order to improve its high temperature resistance and wear resistance, the ball surface of the ball valve is usually sprayed with high hardness materials such as WC and Ni60 with high wear resistance. On the other hand, since this kind of ball valve generally works in a high temperature and high pressure environment, the sealing requirements are also quite high. In this case, a hard sealing method is often used. In this sealing method, the shape accuracy (sphericity) of the ball And surface roughness requirements are very hig...
Claims
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Inventor 胡德金许黎明许开州李冬冬许明明
Owner SHANGHAI JIAO TONG UNIV