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Magnetic chuck for ultra-precision main shaft

A magnetic sucker, ultra-precision technology, applied in the direction of clamping, supporting, positioning devices, etc., can solve the problems of scratches on the surface of the workpiece, increase in production costs, large amount of exhaust gas, etc., to ensure processing accuracy, easy to remove the workpiece, and use good effect

Inactive Publication Date: 2021-11-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the ultra-precision cutting process of some special materials (including radiation), the workpiece needs to be fixed on the spindle. The traditional ultra-precision machine tools often use vacuum suction cups to fix the workpiece. However, due to the particularity of the cutting material, if the traditional Vacuum chucks need to carry out harmless treatment of exhaust gas, and because ultra-precision cutting usually lasts for several days or weeks, the amount of exhaust gas discharged during this period is huge, which will greatly increase production costs, so in the process of ultra-precision cutting of special materials Need to use magnetic chuck in
[0003] Most of the currently designed magnetic chucks for ultra-precision spindles are composed of a single permanent magnet or several small permanent magnets, and their magnetic force remains unchanged, which ensures the stability of the workpiece during cutting. It will be very laborious to remove, and it is easy to scratch the surface of the workpiece, so it is necessary to invent a magnetic chuck that maintains the necessary magnetic force during the cutting process, and can reduce the magnetic force after the cutting, so that the workpiece can be easily removed

Method used

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  • Magnetic chuck for ultra-precision main shaft
  • Magnetic chuck for ultra-precision main shaft
  • Magnetic chuck for ultra-precision main shaft

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specific Embodiment approach 1

[0021] DETAILED DESCRIPTION Figure 1 to 5 In this embodiment, the present embodiment provides a magnetochor capable of using a superficial spindle, including a housing assembly 19, a transmission assembly 20, a permanent magnet 5, two permanent magnet mounting shafts 4; two permanent magnets mounting The shaft 4 is discharged in parallel to the housing assembly 19, and each permanent magnet mounting shaft 4 has a permanent magnet 5, the transmission assembly 20 drives two permanent magnet mounting shafts 4 and permanent magnet 5 to achieve a magnetic pole change. The housing assembly 19 is mounted on the ultra-precision machine 16.

specific Embodiment approach 2

[0022] Detailed Embodiment 2: Reference Figure 1 to 4 In the present embodiment, the present embodiment is further defined by the specific embodiment, in the present embodiment, the transmission assembly 20 includes two magnetic force switch shafts 12 and six transmission gears 7; the two magnetic switch shafts 12 respectively The two ends of the gap between the two permanent magnet mounts shafts 4 are provided on both ends of the two permanent magnet mounting shafts and the two magnetic force switch shafts 12, and the transmission is mounted on the permanent magnet mounting shaft 4. The gear 7 is engaged with the drive gear 7 corresponding to the magnetic force switch shaft 12. Other components and connection methods are the same as those of the specific embodiments.

[0023] In the present embodiment, the transmission gear 7 is mounted on the corresponding magnetic force switch shaft 12 or the permanent magnet mounting shaft 4 by the key 14, and the rotational degree of rotation...

specific Embodiment approach 3

[0024] Detailed embodiment 3: Reference Figure 1 to 4 In this embodiment, the present embodiment is further defined in the present embodiment. In the present embodiment, two permanent magnet 5 is mounted on each of the magnetic force switch shafts 12, and a position is achieved by a lock nut 6. fixed. Other components and connections are the same as those in the specific embodiment.

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Abstract

The invention discloses a magnetic chuck for an ultra-precision main shaft, and belongs to the field of ultra-precision machining. The magnetic chuck is easy to operate, convenient and fast, and is an effective means for clamping special materials in the ultra-precision cutting process. The magnetic chuck comprises a shell assembly, a transmission assembly, permanent magnets and two permanent magnet mounting shafts; and the two permanent magnet mounting shafts are rotationally mounted in the shell assembly side by side, each permanent magnet mounting shaft is sleeved with the corresponding permanent magnet, the transmission assembly drives the two permanent magnet mounting shafts and the permanent magnets to rotate to achieve magnetic pole transformation, and the shell assembly is mounted on an ultra-precision machine tool. The magnetic chuck can achieve magnetic pole transformation, so that necessary magnetic force is kept in the cutting process, the magnetic force can be reduced after cutting is completed, and the magnetic chuck is convenient to use and good in use effect.

Description

Technical field [0001] The present invention belongs to the field of superficial processing, and more particularly to a magnetic suction cup available for a superficial spindle. Background technique [0002] During certain special materials (radiated) superficial cutting, the workpiece is required to fix the workpiece in the spindle, and the conventional superficial machine is often fixed in a vacuum suction cup, but due to the particularity of the cutting material, if a conventional The vacuum suction cup need to be harmlessly treated against the discharged exhaust gas, and since the superficial cutting usually lasts for several or weeks, the amount of exhaust gas discharged is huge, which will greatly increase the production cost, so the superficial cutting process of special materials A magnetic suction cup is required. [0003] The currently designed ultra-precision spindle magnetic suction cup is mainly composed of the entire permanent magnet or a small permanent magnet, and...

Claims

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Application Information

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IPC IPC(8): B23Q3/154B23Q3/12
CPCB23Q3/1546B23Q3/12
Inventor 宋禄启张强孙涛赵学森刘汉中
Owner HARBIN INST OF TECH