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Edge and arc chamfering device machining for precision quartz crystal resonator

A technology of quartz crystals and resonators, which is applied in the field of crystal component processing technology, can solve problems such as track change and easy change of heart, achieve good wafer processing control capabilities, ensure design compliance, and improve wafer processing control capabilities.

Active Publication Date: 2018-11-23
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing chamfering and arcing process usually uses the traditional crankshaft swing arm grinder, which is easy to change the center and track, and has many shortcomings

Method used

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  • Edge and arc chamfering device machining for precision quartz crystal resonator
  • Edge and arc chamfering device machining for precision quartz crystal resonator
  • Edge and arc chamfering device machining for precision quartz crystal resonator

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Embodiment Construction

[0031] In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0032] The existing chamfering and arcing process usually follows the traditional crankshaft swing arm grinding machine. When chamfering and arcing grinding, a fixed stylus is installed vertically at the end of the swing arm of the equipment, and its spherical end is embedded in the center of the top of the wafer buckle carrying the wafer. In the hole, the wafer is pressed against the surface of the R bowl grinding disc. When the motor rotates, the R bowl and the crankshaft are driven by the motor to rotate at the same t...

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Abstract

An embodiment of the invention provides an edge and arc chamfering machining device for a precision quartz crystal resonator. The edge and arc chamfering machining device comprises a machining platform, a grinding disc arranged on the machining platform and used for bearing a wafer, a driving mechanism for driving the grinding disc to rotate, a wafer buckle pressurized and fixed on the wafer and including a counter bore, and a pressing mechanism pressed on the wafer buckle, wherein the pressing mechanism comprises a thimble and a first rotating mechanism, and the thimble can be inserted into the counter bore to be secured to the wafer in an inserting manner. The edge and arc chamfering machining device for the precision quartz crystal resonator can guarantee that a curved surface of the wafer is stably ground, and can also guarantee the design conformity and the shape symmetry. The perpendicularity and fixation relationships among a support rod, the thimble and a horizontal plane of the wafer can be adjusted and controlled. The grinding center of gravity of the wafer in a grinding process can be kept unchanged.

Description

technical field [0001] The invention relates to the field of crystal component processing technology, in particular to a device for chamfering and arcing processing of precision quartz crystal resonators. Background technique [0002] A quartz crystal resonator is a resonant element made of a quartz wafer with piezoelectric effect, and it is also a key component of a crystal oscillator. Due to its small size, light weight, high reliability, and excellent frequency stability, quartz crystal resonators are widely used in communications, medical, aerospace, weaponry and other industries and fields. [0003] Chamfering or arc arc design and processing is one of the core technologies of precision quartz resonator products. By chamfering and arc trimming the contour of the quartz wafer inside the product, it can suppress coupling, enhance resonance, and improve the performance of resonator products. Among them, the chamfering process is to grind the wafer on a concave spherical R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B9/06
Inventor 王莉李国强王巍丹郑文强哈斯图亚叶林崔巍段友峰
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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