Numerical control drill head cooling device and method

A technology of cooling device and cooling method, applied in the direction of metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc.

Active Publication Date: 2011-05-18
SHENNAN CIRCUITS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a kind of numerical control drill bit cooling device and method, to solve the method for the smooth cooling of numerical control drilling machine

Method used

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  • Numerical control drill head cooling device and method
  • Numerical control drill head cooling device and method
  • Numerical control drill head cooling device and method

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Embodiment Construction

[0019] When the PCB is drilled, a CNC drilling machine is used. When the CNC drilling machine is drilling, the drill bit rotates at high speed and rubs against the circuit board. The drill bit and the circuit board will heat up instantly, and the temperature is very high. Some special circuit boards cannot withstand such a high temperature. , so the drill bit and the circuit board must be cooled with liquid nitrogen, but the more deadly point is that the underside of the presser foot is the protruding part of the drill bit, which is the dust suction area, forming a high negative pressure. When the board is removed, it will be sucked away by strong negative pressure, and the cooling effect cannot be achieved.

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not a...

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Abstract

The embodiment of the invention provides a numerical control drill head cooling device. A numerical control drill head is provided with a dust absorbing pipe, the dust absorbing pipe is formed with a negative pressure region during working, the dust absorbing pipe comprises a plurality of liquid nitrogen pipes which are evenly distributed on the same periphery, the distances between a plurality of spray heads of the liquid nitrogen pipes and the numerical control drill head are all equal, and the spraying pressure of each liquid nitrogen pipe is larger than the suction of the negative pressure region. In the embodiment of the invention, a ring form is formed by setting the negative pressure region which can absorb the dust around the drill head, the liquid nitrogen spraying pipes are arranged around the circle, the liquid nitrogen is sprayed to the negative pressure region in which the drill head is arranged at the same time, and a part of the liquid nitrogen can be remained on the surface of a plate and the upper surface of the drill head as long as the liquid nitrogen spraying force is larger than the dust absorbing force to be capable of cooling the drill head instantaneously. Due to the structure, the dust generated by working can not be flied caused by uneven force application. The embodiment of the invention further discloses a numerical control drill head cooling method.

Description

technical field [0001] The present invention relates to the field of PCB equipment, more specifically, to a cooling device and method for a numerically controlled drill bit Background technique [0002] At present, PCB (Printed Circuit Board, printed circuit board) is the support body of electronic components and the provider of electrical connection of electronic components. When the PCB is drilled, a CNC drilling machine is used. When the CNC drilling machine is drilling, the drill bit rotates at high speed and rubs against the circuit board. The drill bit and the circuit board will heat up instantly, and the temperature is very high. Some special circuit boards cannot withstand such a high temperature. , so the drill bit and the circuit board must be cooled with liquid nitrogen, but the more deadly point is that the underside of the presser foot is the protruding part of the drill bit, which is the dust suction area, forming a high negative pressure. When the board is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/00B23Q11/10
Inventor 黄金元俞小东张红张松林
Owner SHENNAN CIRCUITS
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