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Cam roller type numerical control indexing head

A technology of roller type and indexing head, which is applied in the direction of metal processing machinery parts, precision positioning equipment, metal processing equipment, etc., can solve the problem of poor rigidity ratio, small friction force, and limit the processing range of cam roller type CNC indexing head and other problems, to achieve the effect of improving transmission rigidity, improving stability, and maintaining motion processing accuracy

Inactive Publication Date: 2015-11-11
TAIZHOU AOTU TRANSMISSION PARTS CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the transmission mode between the needle roller bearing and the arc cam is rolling transmission, the friction force is very small, and it can well realize the high-speed indexing processing needs, but at the same time, due to the meshing between the needle bearing and the arc cam The contact surface of the transmission is a line contact, resulting in relatively poor rigidity during transmission, which cannot be applied to the needs of high-torque transmission processing, which greatly limits the processing range of the cam-roller CNC dividing head

Method used

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  • Cam roller type numerical control indexing head
  • Cam roller type numerical control indexing head

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Embodiment Construction

[0013] Such as figure 1 As shown, a cam-roller type numerical control indexing head mainly includes an indexing plate 1 and an arc-shaped cam 21 positioned on the transmission shaft 2, and the periphery of the indexing plate 1 is provided with a plurality of rollers evenly distributed on the circumference. Needle bearings 11 , each needle bearing 11 can engage with the arc cam 21 on the transmission shaft 2 in sequence.

[0014] Here, in the present invention, there are at least two transmission shafts 2 with arc cams 21, and four transmission shafts 2 in this embodiment example, but in practice it can be set to two, three or more roots. The above transmission shafts 2 are sequentially connected to the transmission or driven synchronously by their own drive motors. In this embodiment, the structure of the transmission from the top to the bottom is adopted. In practice, it can be as follows: figure 2 As shown, each transmission shaft 2 is synchronously driven by its own driv...

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Abstract

The invention provides a cam roller type numerical control indexing head. The cam roller type numerical control indexing head mainly comprises an indexing plate and globoidal cams positioned on transmission shafts. Multiple needle bearings are circumferentially and evenly distributed on the periphery of the indexing plate. The needle bearings can be sequentially engaged with the globoidal cams. The number of the transmission shafts with the globoidal cams is at least two. The transmission shafts are arranged around the indexing plate. The transmission shafts are sequentially connected end to end for transmission or synchronously driven by respective drive motors. The globoidal cams on the transmission shafts are in zero-clearance engaging transmission with the needle bearings on the corresponding side of the indexing plate. According to the design, the transmission rigidity of the indexing head can be improved in a multiplied manner; the cam roller type numerical control indexing head has the characteristics of being simple in structure and high in machining accuracy; and the machining range of the cam roller type numerical control indexing head can be greatly widened.

Description

technical field [0001] The invention relates to a numerical control dividing head, in particular to a cam roller type numerical control dividing head. Background technique [0002] CNC dividing head is one of the main accessories of CNC milling machines, machining centers and other machine tools, and can also be used as the main accessories of semi-automatic milling machines, boring machines and other types of machine tools. The CNC dividing head provides rotary coordinates for CNC machine tools, machining centers and other machine tools. It can complete equal, unequal or continuous rotary processing. It is suitable for various milling, drilling, and processing of complex curved surfaces. It can automatically complete alignment The clamping and loosening of the workpiece and the circumferential indexing at any angle can greatly improve the labor productivity and the processing quality of the workpiece. [0003] The traditional CNC dividing head is a worm gear structure, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q16/02
CPCB23Q16/025
Inventor 郭勇华
Owner TAIZHOU AOTU TRANSMISSION PARTS CO LTD
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