Transmission structure of graduated disk

Abstract

The invention provides a transmission structure of a graduated disk and the structure comprises a screw rod, it is connected with the power supply, and the axial of the screw rod is provided with first screw thread portion and second screw thread portion, and wherein, the helix of first screw thread portion staggers with the helix of second screw thread portion each other; and a main mandrel, which connects the graduation carousel, and a plurality of bearings are established to main mandrel spacer ring, and each bearing meshes with first screw portion and second screw portion respectively, wherein the orientation of first screw portion each bearing of meshing and the opposite direction of second screw portion each bearing of meshing, consequently, do not have the back clearance problem between screw rod and the main mandrel, and then put forward high pressure heater worker precision.

Description

technical field [0001] The invention relates to an indexing plate structure, in particular to a backlash-free indexing plate transmission structure. Background technique [0002] The indexing plate is an indispensable component in automatic mechanical equipment. In the process of precision machining, assembly, production, etc., the indexing plate can be used to perform the functions of indexing and positioning, and the indexing plate can be used to precisely control the workbench According to the cutting angle required for processing, the table can be controlled to generate corresponding angular displacement, thereby realizing precise positioning processing. [0003] Such as figure 1 The transmission structure of the traditional indexing plate is shown, including: worm 1, which is provided with thread 2; The meshing of the thread teeth 4 makes the worm wheel 3 drive the indexing turntable to rotate, so as to perform indexing and positioning. However, there is a gap betwee...

AI Technical Summary

Problems solved by technology

However, there is a gap between the worm 1 and the worm wheel 3 when meshing. No matter when moving forward or backward, the thread 2 only meshes with the single tooth surface of the thread tooth 4. After a long time of meshing, wear and tear will occur to form a backlash, resulting in indexing errors , so that the accuracy is reduced, the rigidity of the overall structure is reduced, the torque is reduced, and the transmission is not accurate, and it is prone to problems such as vibration

[0004] In order to reduce the error caused by the backlash, it is necessary to stop the machine frequently for maintenance and perform relevant calibration procedures, resulting in complicated processing procedures;

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