A manual heavy-duty rotary table with elastic positioning of ball-end cylindrical guide rod

Abstract

The invention relates to a manual heavy-load rotary working table with an elastic positioning function of ballhead type cylindrical guide rods. The rotary working table comprises a working table base 21, a rotary table surface 19, a central rotary shaft 20, supporting roller wheels 17, tracks 16 and elastic positioning devices 18, wherein each elastic positioning device 18 comprises a seat sleeve 12, a guide rod 3 and a spring 2; the guide rod 3 refers to a ballhead type guide rod, a ballhead 8 is arranged at the head of the guide rod 3, a positioning step 7 capable of limiting the stroke is arranged in the middle of the guide rod 3, and a cylindrical rod body is arranged at the tail of the guide rod 3; a concave cover type pressure sleeve 13 is arranged at the tail of the spring 2, and the pressure of the spring 2 can be adjusted by adjusting screws 15 through the pressure sleeve 13. The rotary working table has the advantages of simple structure, stable performance, high reliability and quickness in positioning; the small ballhead is arranged at the positioning end of a positioning rod member, the cylindrical guide rod is arranged on the rear side of the ballhead, the positioning step is added, the positioning emergence limit of the guide rod can be controlled, and the pressure of the spring can be adjusted, so that the whole device is stable in performance and is suitable for heavy-load turntables of large workpieces.

Description

technical field [0001] The invention relates to a manual rotary table carrying large workpieces in a coating production line, in particular to a manual heavy-duty rotary table with elastic positioning of a ball head cylindrical guide rod. Background technique [0002] For large workpieces such as automobiles, in the process of spraying and other processes, they need to be placed on a manual turntable for indexing processing and turned to output. For cars with different loads, the weight of the car body is as high as 2-4 tons, so the requirements for the indexing table turntable used in the processing process are particularly high. Due to the large volume and load of the workpiece, the inertial force of the worktable is very large when it is indexed and rotated, so the requirements for the shear resistance and stability of the elastic device of the workbench are very high. [0003] At present, most workpiece indexing turntables use steel ball spring positioning devices, that...

AI Technical Summary

Problems solved by technology

Furthermore, the steel ball spring positioning device is not suitable for use in heavy-duty turntables for large workpieces due to the low shear resistance of the steel balls, poor positioning stability, and poor guiding effect.

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