Butterfly bearing positioning hole machining equipment and process

Abstract

The invention discloses butterfly bearing positioning hole machining equipment. The butterfly bearing positioning hole machining equipment includes a machine body installed in a shell of a numerical control machine tool and a numerical control system for controlling the operation of the machine body. The butterfly bearing positioning hole machining process includes the following steps of S1 construction of processing equipment, S2 detection of the workpiece installation position, S3 rough grinding, S4 fine boring of a positioning hole, S5 measurement and inspection of a workpiece and S6 measurement and inspection of the positioning hole. According to the butterfly bearing positioning hole machining equipment, a high-precision probe is used for detecting the position of a workpiece after installation and a result after machining; the machining equipment integrates the machining and detection functions, the requirements for the installation position of the workpiece are reduced, and themachining efficiency is significantly improved; and through grinding and high-speed boring machining of the coarse and fine sections of the positioning hole, the precision boring allowance of the positioning hole is appropriately set, the wear cost of a cutter tool is reduced, the machining accuracy of the positioning hole is further improved, and an effective solution is provided for the machining of the butterfly bearing positioning hole.

Description

technical field [0001] The invention belongs to the technical field of butterfly bearing processing, and in particular relates to a butterfly bearing positioning hole processing equipment and processing technology. Background technique [0002] Butterfly bearing locating holes (multiple associated locating holes) are one of the installation and positioning datums of the bearing in work, and also the manufacturing datum in its manufacturing process. like figure 1 The butterfly bearing shown has very high requirements on the dimensional accuracy, position accuracy and surface roughness of the positioning hole. The machining accuracy of the positioning hole will seriously affect the quality of the final product. The traditional processing technology of the positioning hole of the butterfly bearing is that the fitter uses a drilling die to drill or drill and mill it through a CNC machining center. If the positioning hole of the butterfly bearing is processed to size before hea...

AI Technical Summary

Problems solved by technology

If the positioning hole of the butterfly bearing is processed to size before heat treatment, the deformation after heat treatment will lead to poor dimensional and position accuracy; if the positioning hole is processed after heat treatment, the hardness of the material after heat treatment is too high (up to HRC62~66), traditional The fitter drilling method is very difficult to process. If a precision coordinate grinding machine is used for processing, the operator needs to constantly adjust the parameters of the CNC coordinate grinding machine based on the experience accumulated in the work during the processing, and the processing efficiency is very low (can only be processed every day. 2 pieces), and the workpiece can only be removed from the machine tool after processing, and the corresponding data can only be detected by a precision three-coordinate measuring instrument. Since the workpiece belongs to the special complex structure of the bearing, the precision requirements are very high, and it cannot be Carry out real-time dynamic monitoring of machining accuracy. Once the detection data fails to meet the design requirements after unloading, the secondary clamping process will not be possible, and the workpiece will be scrapped

Secondly, there are shortcomings in the processing accuracy of domestic CNC coordinate grinding machines, and the design accuracy requirements cannot be met when processing the workpiece.

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