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A Laser Beam Rotation Device Based on Hollow Electric Spindle

A technology of rotating device and laser beam, which is applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems that belt transmission is not suitable for small bending radius, reduce rotation accuracy, and temperature rise of parts, so as to reduce laser processing waste and defective products, protection against pollution, and protection against damage

Active Publication Date: 2015-08-19
张立国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because belt transmission is affected and limited by the maximum linear velocity of belt movement and the fatigue limit of belt bending, belt transmission is not suitable for fields with small bending radius, high-speed transmission or long-term work
[0003] Those skilled in the art usually install the laser beam rotating device on the bearing seat, but on the one hand, due to the rolling friction of the rolling bearing during continuous operation, the friction generates heat, which makes the temperature of the parts rise, and the resulting thermal expansion and contraction On the other hand, due to the special structural design of the bearing itself, high-speed operation will be accompanied by vibration and noise, which reduce the accuracy of rotation
It can be seen from the above that ordinary rolling bearings cannot meet the requirements of high-speed and high-precision long-term operation.

Method used

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  • A Laser Beam Rotation Device Based on Hollow Electric Spindle
  • A Laser Beam Rotation Device Based on Hollow Electric Spindle
  • A Laser Beam Rotation Device Based on Hollow Electric Spindle

Examples

Experimental program
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Effect test

Embodiment 1

[0030] figure 1 It is a schematic diagram of the structure of the air-floating hollow electric spindle motor, such as figure 1 As shown, the air-floating hollow electric spindle motor 20 includes the air-floating electric spindle motor stator 9 and the rotor of the air-floating hollow electric spindle motor, and the air-floating electric spindle motor stator 9 and the air-floating hollow electric spindle motor Air bearings between the rotors ( figure 1 not marked).

[0031] The rotor of the air-floating hollow electric spindle motor includes an axially hollow air-floating hollow electric spindle 6 and an electromagnetic induction coil 10 surrounding the air-floating hollow electric spindle 6, and the electromagnetic induction coil 10 is located in the air-floating hollow electric spindle. On the middle position of the outer wall of the main shaft 6. The air-floating hollow electric spindle 6 is located in the stator 9 of the air-floating electric spindle motor, and the holl...

Embodiment 2

[0043] image 3 It is a schematic diagram of the structure of the ceramic bearing hollow electric spindle motor, such as image 3 As shown, the ceramic bearing hollow electric spindle motor 21 includes the ceramic bearing electric spindle motor stator 16 and the rotor of the ceramic bearing hollow electric spindle motor, and the ceramic bearing electric spindle motor stator 16 and the ceramic bearing hollow electric spindle Ceramic bearings 19 between the rotors of the motor. The rotor of the ceramic bearing hollow electric spindle motor includes an axially hollow ceramic bearing hollow electric spindle 15 and an electromagnetic induction coil 10 surrounding the ceramic bearing hollow electric spindle 15, and the electromagnetic induction coil 10 is located on the ceramic bearing hollow electric spindle. At the middle position of the outer wall of the main shaft 15, the ceramic bearing hollow electric main shaft 15 is installed in the stator 16 of the ceramic bearing electric...

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Abstract

The invention relates to a laser beam rotating device based on a hollow electric spindle. The laser beam rotating device comprises a transmission optical module and a hollow electric spindle motor, wherein a rotor of the hollow electric spindle motor comprises a hollow electric spindle which is axially hollow, and an electromagnetic induction coil which is encircled on the hollow electric spindle, and a coil capable of generating electromagnetic induction action with the electromagnetic induction coil on the hollow electric spindle is arranged in a stator of the hollow electric spindle motor; the transmission optical module is arranged in an axial direction of the hollow electric spindle, the hollow electric spindle is fixedly connected to the transmission optical module, and the transmission optical module is used for rotary modulation of light beam emitted on the transmission optical module. By adopting high-speed and ultra-high speed hollow electric spindle motors, in particular an air flotation hollow electric spindle motor or a magnetic suspension hollow electric spindle motor, laser light beams, which are rotated at high precision, high speed and ultra-high speed, can be obtained.

Description

technical field [0001] The invention relates to the technical field of beam motion control, in particular to a laser beam rotation device based on a hollow electric spindle to control the beam to rotate at high speed. Background technique [0002] In the prior art, the driving device of the laser beam rotating device generally adopts the mode of motor belt transmission. Because the belt drive is affected and limited by the maximum linear velocity of the belt and the bending fatigue limit of the belt, the belt drive is not suitable for small bending radius, high-speed transmission or long-term work. [0003] Those skilled in the art usually install the laser beam rotating device on the bearing seat, but on the one hand, due to the rolling friction of the rolling bearing during continuous operation, the friction generates heat, which makes the temperature of the parts rise, and the resulting thermal expansion and contraction On the other hand, due to the special structural de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/08B23K26/064B23K26/16B23K26/70B23K26/042
Inventor 张立国
Owner 张立国