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Numerical control servo indexing mechanism for crankshaft connecting rod neck

A technology of crankshaft connecting rod and indexing mechanism, which is applied to metal processing mechanical parts, machine tools designed for grinding the rotating surface of workpieces, precision positioning equipment, etc., can solve the problem of low indexing accuracy, achieve wide applicability, improve Radial angle accuracy, compact structure

Active Publication Date: 2013-07-03
湖北伟翔数控机床股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology can only be applied to 180-degree indexing, and cannot be applied to 120-degree indexing. The reciprocating linear motion of the oil cylinder is converted into a rotary motion of the index. The indexing plate needs to rotate forward and reverse, and the accuracy of the indexing is not good high

Method used

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  • Numerical control servo indexing mechanism for crankshaft connecting rod neck
  • Numerical control servo indexing mechanism for crankshaft connecting rod neck
  • Numerical control servo indexing mechanism for crankshaft connecting rod neck

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Embodiment Construction

[0020] The mechanism of the present invention is used for servo indexing of CNC crankshaft grinder to illustrate, as figure 1 As shown, the support frame in the technical solution is the clamp body 1 of the CNC crankshaft grinder, and the indexing head seat 2 is connected with the clamp body 1, as figure 2 As shown, the indexing head seat 2 is provided with a long adjustment hole 2.1, and the bolt 2.2 passes through the long adjustment hole 2.1 to connect the indexing head seat 2 with the clamp body 1. Clamp body 1 is provided with adjusting nut 6, and adjusting nut 6 is connected with screw rod 6.1, and screw rod 6.1 end faces contact with the side of indexing head seat 2, can make like this when installing now with the up and down center position of fine-tuning indexing head seat 2.

[0021] Another example figure 2 As shown, the indexing head seat 2 is connected with the indexing box 4, such as image 3 As shown, the indexing box 4 is provided with an arc connection gro...

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Abstract

The invention discloses a numerical control servo indexing mechanism for a crankshaft connecting rod neck. The mechanism comprises a supporting frame connected with an indexing head seat, and is characterized in that: the indexing head seat is connected with an indexing box; a shaft hole is formed in the indexing box; an indexing shaft is supported in the shaft hole through a bearing; a ratchet is arranged on the indexing shaft; ratchet teeth which have the same number as the phase number of the crankshaft connecting rod neck are uniformly arranged on the ratchet along the circumference; an indexing angle is formed by a central angle between two ratchet teeth; a pawl mechanism for positioning the ratchet teeth is arranged in the radial direction of the indexing box; the power input of theindexing shaft and an indexing transmission shaft is realized through a gear transmission device; the indexing shaft is connected with a central output shaft; the end part of the indexing box is connected with an end cover device; and the central output shaft passes through the end cover device. The mechanism has a compact structure and high applicability, is suitable for 120-DEG or 180-DEG indexing, is suitable for crankshaft machining of a main shaft neck and the connecting rod neck within different distances, and has high indexing accuracy.

Description

technical field [0001] The invention belongs to crankshaft connecting rod neck processing tooling, in particular to a crankshaft connecting rod neck digital control indexing mechanism for crankshaft connecting rod neck processing. Background technique [0002] Indexing is an essential process in the machining process of the crankshaft connecting rod journal. During the machining process of the crankshaft connecting rod journal, the journal of the processed part must always be kept concentric with the center of the main shaft. For example: the crankshaft journal is six necks, press The processing sequence is: 1 connecting rod journal, 6 connecting rod journal; 2 connecting rod journal, 5 connecting rod journal; 3 connecting rod journal, 4 connecting rod journal are three groups, arranged 360° according to the angle / 3, each arranged at 120°. During processing, first process the 3-rod journal and 4-rod journal, then turn 120° to process the 2-rod journal and 5-rod journal, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q16/02B24B5/32B24B5/42
Inventor 肖海田冯英华夏光辉
Owner 湖北伟翔数控机床股份有限公司
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