Piezoelectric type device for measuring drilling force of deep hole

A force-measuring device and a technology of deep and small holes, which are applied in the field of sensor measurement and control, can solve the problems that the sensitivity and natural frequency cannot meet the measurement requirements at the same time, and the torque measurement accuracy is not high, so as to improve the processing quality, simplify the structure and improve the processing efficiency. Effect

Active Publication Date: 2010-02-17
DALIAN UNIV OF TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing sensors in the measurement of drilling force in the process of deep and small holes, the sensitivity and natural frequency cannot

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  • Piezoelectric type device for measuring drilling force of deep hole
  • Piezoelectric type device for measuring drilling force of deep hole
  • Piezoelectric type device for measuring drilling force of deep hole

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Embodiment Construction

[0021] The specific implementation manner of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions.

[0022] as attached Figure 1-8 As shown, when assembling, first install the piezoelectric quartz sensor 3 on the upper surface a of the base, then cover the upper cover 2 so that the piezoelectric quartz sensor 3 is installed in the circular hole j of the upper cover 2, and use three Two connecting screws 8 rigidly connect the base 1, the upper cover 2 and the piezoelectric quartz sensor 3 through three stepped holes c and three threaded holes n respectively, and the three connecting screws 8 pre-tighten the piezoelectric quartz sensor 3 to obtain sufficient preload. When measuring, use four screws to fix the piezoelectric deep small hole drilling force measuring device on a base through the adjustable installation U-shaped groove d, and use eight screws to fix the workpiece to be measured through the threaded ...

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Abstract

The invention discloses a piezoelectric type device for measuring the drilling force of a deep hole, belonging to the technical field of sensing, observing and controlling, in particular a device fordetecting the drilling force and the torque moment of the deep hole in drilling process. The device comprises a base, an upper cover, a piezoelectric quartz sensor, a lead wire output plug, a lead wire, a gasket ring, a connecting bolt and a protection pad, wherein the piezoelectric quartz sensor clamped between the base and the upper cover is located in the right center of the device. The piezoelectric quartz sensor comprises a partition electrode, a complete electrode and a quartz wafer. The invention enhances sensitivity by combing a plurality of pieces of quartz crystals, only needs one sensor, and has the characteristics of simple structure, high sensitivity, favorable linearity and repetitiveness and high measurement precision. The piezoelectric type device for measuring the drillingforce of the deep hole can detect the drilling force and the torque moment in the deep hole processing in real time.

Description

technical field [0001] The invention belongs to the technical field of sensor measurement and control, and relates to a piezoelectric force measuring device for deep and small hole drilling, in particular to a detection device for drilling force and torque during deep and small hole drilling. Background technique [0002] The drilling process is a semi-closed process, especially for the drilling of deep and small holes. The cutting fluid cannot reach the cutting area, the chips are small, easy to accumulate, and the chip removal is difficult, forming a closed environment, causing the local temperature in the cutting area to rise rapidly, resulting in overheating and burning of the cutting edge, causing rapid wear of the drill bit. The usual solution is to regularly lift the drill to remove chips, which will seriously affect the production efficiency. In recent years, with the rapid development of automation, high efficiency and flexibility in the field of machining and the ...

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Application Information

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IPC IPC(8): G01L5/10G01L3/00
Inventor 钱敏邢勤张军
Owner DALIAN UNIV OF TECH
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