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Steel ball roller indexing apparatus

An indexing device and steel ball technology, which is applied in metal processing equipment, precision positioning equipment, metal processing machinery parts, etc., can solve problems such as unstable inherent characteristics and affecting the application of steel ball indexing discs

Inactive Publication Date: 2009-01-07
CHONGQING UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The theoretical indexing accuracy of this type of steel ball indexing plate is very high, but due to the inherent instability caused by the contact between the steel balls on one indexing plate and the two steel balls on the other plate, it is required The precision of the circular distribution of the two groups of steel balls is very high, which brings high requirements for manufacturing precision, which affects the application of steel ball indexing plate technology to a certain extent

Method used

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  • Steel ball roller indexing apparatus
  • Steel ball roller indexing apparatus
  • Steel ball roller indexing apparatus

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Embodiment Construction

[0016] figure 1 , figure 2 , image 3 and Figure 4 In the shown structure, the upper disc body 10 has a ring-shaped groove, on which a group of steel balls 8 with the same diameter are arranged, and are fixed in the ring-shaped groove by the steel ball outer fixing ring 9 and the steel ball inner fixing ring 6. In the group of steel balls, the position of one steel ball is fixed on the disc and cannot move on the annular groove, while the rest of the steel balls are allowed to move slightly on the annular groove. A group of cylindrical rollers 3 arranged circularly and radially around the lower plate body 1 are fixed on the lower plate by roller outer fixing rings 5 ​​and roller inner fixing rings 2. Among the group of cylindrical rollers are The position of one cylindrical roller is fixed on the disc and cannot be moved, while the remaining cylindrical rollers are allowed to move slightly. A steel ball on the upper plate is in contact with two cylindrical rollers on the...

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Abstract

A self-centering steel ball and roller dividing device relates to a precision circular dividing and positioning device which is widely applied in various industrial fields. The dividing device adopts the technical proposal that in a pair of steel ball and roller dividing discs, a circle of steel balls of the same diameter are annularly distributed on an upper disc, a circle of rollers of the same diameter are annularly distributed and radially arranged on a lower disc, and one steel ball of the upper disc is in simultaneous contact with two rollers of the lower disc. Therefore, the steel ball and roller dividing disc can realize an equal division number or an integral multiple thereof which is determined by the number of steel balls in a circle. The dividing device has the characteristics of automatic centering and alignment. Therefore, the dividing device not only maintains the advantages of the known steel ball dividing disc, but also effectively reduces the requirement of the manufacture precision; furthermore, the dividing device has a self-centering function, and has the advantages of easy serialized and standardized design and manufacture, convenient installation and use, etc.

Description

Technical field: [0001] The invention relates to a precision circular indexing and positioning device widely used in various industrial fields. Background technique: [0002] Steel ball indexing is a well-known indexing form used in various fields of industry. On April 1, 1985, Chongqing University submitted an application for an invention patent to the National Patent Office, "Steel Ball Indexing Plate with Automatic Error Compensation", with the application number 85101981.1, and was granted the invention patent on March 23, 1988. The known steel ball indexing form is a pair of indexing discs formed by two groups of steel balls with the same number and diameter distributed in a circular shape, and the number of steel balls is the required equal number or an integral multiple. The theoretical indexing accuracy of this type of steel ball indexing plate is very high, but due to the inherent instability caused by the contact between the steel balls on one indexing plate and t...

Claims

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Application Information

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IPC IPC(8): B23Q16/02
Inventor 陈小安
Owner CHONGQING UNIV
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