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Numerically controlled grinder special for slewing bearing processing

A technology for slewing bearings and CNC grinding machines, which is applied to grinding machines, metal processing equipment, and parts of grinding machine tools. It can solve the problems of low efficiency and low precision machining of slewing bearings, and achieve reliable and reliable quality improvement. Effect of shape accuracy

Inactive Publication Date: 2013-07-17
柳州市冉达机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to provide a brand-new special-purpose CNC grinding machine for slewing bearing processing. The problems of low precision and low efficiency in the finishing of existing slewing bearings

Method used

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  • Numerically controlled grinder special for slewing bearing processing
  • Numerically controlled grinder special for slewing bearing processing
  • Numerically controlled grinder special for slewing bearing processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A special CNC grinding machine for slewing bearing processing with a grinding wheel dresser, including: a bed and a worktable, a column and a grinding head assembly, a grinding wheel dresser, a numerical control system, and a cooling system (see Figure 1-1 ~ Figure 1-2 ,); Among the above five components, the numerical control system is a mature technology and need not be repeated. The cooling system mainly cools the workpiece during the grinding process, including the cooling pump and the water receiving plate installed under the work turntable. It is also a mature technology. It is not shown in the figure and will not be repeated here.

[0027] Combine below Figure 1-1 ~ Figure 1-2 The differences in the structure of the special CNC grinding machine with grinding wheel dresser for slewing bearing processing and ordinary CNC machine tools are explained in detail.

[0028] The bed and the worktable include a bed 16 and a work turntable part; the work turntable part c...

Embodiment 2

[0035]A special CNC grinding machine for slewing bearing processing, the second embodiment is a simplified form of the first embodiment, and its basic structure is the same as that of the first embodiment, the difference is: it does not install the grinding wheel dresser 4; the grinding wheel 5 as the grinding head needs to be removed In addition, the quality and work efficiency are not as high as the one with the grinding wheel dresser in the first embodiment; but it is controlled by the numerical control system, and the grinding head grinding wheel has two working positions, parallel and vertical, so that it can be clamped at one time and grind the slewing bearing at the same time. The inner and outer circles, raceways and installation planes improve the machining dimensional accuracy, roughness and position tolerance of the slewing bearing, and improve work efficiency; Good quality.

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Abstract

A numerically controlled grinder special for slewing bearing processing comprising a grinder body and a workbench, a column and a grind head assembly, a grinding wheel dresser, a numerical control system and a cooling system. The grinder body and the workbench comprise working turntable components including a working turntable seat, a working turntable and a turntable motor. The working turntable components are mounted on an X-axis rail of the grinder body and moves on the X-axis left to right driven by an X-axis servo motor and a ball screw mounted inside the grinder body to complete grind feed processing of the X-axis. A workpiece mounted on the working turntable is driven by the turntable motor to rotate with the turntable to complete rotate feed processing. The grind head assembly comprises a grind head motor, a grind head component is composed of a rotary grind head seat and a grind head grinding wheel; and the grind head motor is mounted on the rotary grind head seat, and the grind head grinding wheel is driven by a main shaft of the rotary grind head seat to rotate so as to complete grind processing. The surface of the grinding wheel can be trimmed to be in a shape of slewing bearing rolling grooves by the grinding wheel dresser. By the aid of the numerically controlled grinder, the inner and outer cycle faces, the rolling grooves and a mounting plane of the slewing bearing can be clamped and grind processed in one step synchronously.

Description

technical field [0001] The invention relates to a special numerical control grinding machine for slewing bearing processing, in particular to a numerical control special grinding machine with a grinding wheel dresser for grinding and processing the inner and outer ring raceways and their mounting surfaces of the slewing bearing. Background technique [0002] The slewing bearing is a key component in machinery such as excavators, truck cranes, wind turbines, etc. Its structure such as image 3 As shown in the figure, it is made of alloy steel, and its raceway hardness, size, roughness and shape accuracy are required to be high. In addition, the inner and outer ring mounting surfaces are respectively required for the full runout tolerance of the inner and outer ring raceways and the dimensional matching accuracy requirements of the inner and outer ring raceways. It is also quite high; the level of these precisions is one of the decisive factors for the quality of the slewing be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B25/00B24B47/20B24B41/04B24B53/06
Inventor 覃唯刚苏运忠
Owner 柳州市冉达机械有限公司
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