JP3137132U - Small stroke control type hardness measurement probe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the fluctuation of measurement accuracy when measuring the hardness of a material and applying a stroke pressure load to a piezoelectric ceramic vibrator, and automatically controlling the stroke position of a stroke joint with a motor body with a stroke. Provided is a small stroke control type hardness measurement probe for automatically performing weight measurement of a pressure pressing surface.
SOLUTION: The present invention automatically controls the stroke position of a stroke joint with a motor body with a stroke so that the weight measurement of the pressure pressing surface can be automatically performed, so that the weight does not vary and no measurement error occurs. did. In addition, in order to reduce the push-in and rebound of the piezoelectric element of the vibrator corresponding to the piezoelectric element, the vibrator is provided with a pusher spring from a pusher pin provided in the vibrator holder body and a vibrator holder spring provided in the piezoelectric ceramic vibrator. This is a small stroke control type hardness measurement probe that is attached to the outer cylinder holder to solve the problems.
[Selection] Figure 1

Description

    The present invention sends the transmission of the load to the pressure pressing surface of the pressure sensor holder body by transmitting the pushing load of the joint stroke provided on the motor body with the stroke to the sensor rod body with the transmission circuit, from the pressure sensor body and the pusher pin. The transmission of the load is transmitted to the piezoelectric ceramic vibrator provided in the vibrator holder, the object to be measured is brought into contact with the contact portion of the piezoelectric ceramic vibrator, the frequency change is measured from the pressure sensor signal line, and the signal taken out is detected by the pressure sensor body. The measured data is sent to the pressure sensor signal line as an electrical signal, output is detected, the hardness of the material is measured, and when a stroke pressing load is applied to the piezoelectric ceramic vibrator, variation in measurement accuracy is reduced, and the stroke position of the stroke joint is attached to the stroke Automatic control by the motor body to add pressure pressing surface Measurements relates small stroke control scheme hardness measurement probe which is adapted to be automatically.

    There is no measuring instrument in which the motor drive unit and the piezoelectric vibrator are integrated into one unit. Conventionally, the manual pressing sensor unit with the piezoelectric vibrator was pressed against the measured object by hand. The method of the method added in was used.

Therefore, there were the following problems.
Conventionally, the manual pressing pressure causes a variation in the load, resulting in a measurement error. Therefore, the measurement part is dimensionally large, and the size and shape of the object to be measured are limited. In addition, since the hardness test methods that have been defined so far are based on the pushing and rebounding of the piezoelectric element of the vibrator corresponding to the piezoelectric element on the measurement surface, the measurement data tends to fluctuate depending on the surface properties of the measurement surface. Time-consuming and labor-intensive equipment was also used. The present invention has been made to solve the above problems.

    In the present invention, the stroke position of the stroke joint is automatically controlled by the motor body with the stroke so that the weight measurement of the pressure pressing surface can be automatically performed, so that the weight does not vary and no measurement error occurs. In addition, in order to reduce the pushing and rebound of the piezoelectric element of the vibrator corresponding to the piezoelectric element, the vibrator is provided with a pusher spring from a pusher pin provided in the vibrator holder body and a vibrator holder spring provided in the piezoelectric ceramic vibrator. This is a small stroke control type hardness measurement probe that is attached to the outer cylinder holder to solve the problems.

  As described above, the stroke position of the stroke joint is automatically controlled by the motor body with the stroke so that the pressure measurement of the pressure pressing surface can be automatically performed. In addition, by providing a vibrator holder spring on the pusher spring and piezoelectric ceramic vibrator, it is possible to reduce fluctuations in measurement accuracy due to backlash and other factors that occur in the vibrator when applying a stroke pressing load of the joint stroke. Wide range of measurement applications and effective hardness measurement

Embodiments of the present invention will be described below.
(B) A motor body (2) with a stroke is provided on the rear side of the sensor bag body (1) with a transmission circuit, and a pressure sensor holder body (5) and piezoelectric ceramic are provided on the front side of the sensor box body (1) with a transmission circuit. A vibrator outer cylinder holder (7) provided with the vibrator (6) is provided.
(B) The transducer outer body holder (7) is provided with signal line holes (9) and (9) for passing the pressure sensor signal line (10) through the transducer holder body (8), and the transducer holder body (8). A vibrator joint holder (11) fitted with a vibrator holder (12) is provided on the front side of the vibrator holder spring (13) so as to fit through the vibrator holder (12) and the vibrator joint holder (11). ) And a pusher holder (15) provided so that a pusher pin (16) is attached to the rear side of the vibrator holder body (8) so as to be fitted into the pusher joint holder (14). A pusher spring (17) is provided so as to fit through the pusher holder (15) with the pin (16) attached thereto, and is provided so as to fit into the vibrator outer cylinder holder (7).
(C) The tip tube (18) is fitted to the front surface of the piezoelectric ceramic vibrator (6) provided at the tip of the vibrator outer tube holder (7), and the tip tube (18) is vibrated. It is provided so as to be fixed to the child outer cylinder holder (7).
(D) A pressure sensor provided with a signal line holder (33) for passing the pressure sensor signal line (24) at the upper part of the pressure sensor main body (22), and a pressure pressing surface (23) provided in front of the pressure sensor main body (22). The main body (22) is provided so as to be locked inside the pressure sensor holder recess (20), and the vibrator outer cylinder holder (7) is provided in the pressure sensor holder recess (20) provided in the pressure sensor holder main body (5). A pressure sensor holder convex part (19) is provided so as to be fitted.
(E) Holding the tightening nut (27) to the stop receiving screw (3) provided on the motor body with stroke (2) provided with the stroke motor signal wiring (25), the sensor body with transmitter circuit (1) Fix it.
(F) A stroke motor joint holder is provided with a washer (31) and a set screw (32) in a joint set screw hole (29) in a joint screw groove (26) of a joint stroke (4) provided in a motor body (2) with a stroke. (28) is provided to be joined.
(G) The joint convex part (21) provided in the pressure sensor holder main body (5) is mounted so as to be fitted into the joint concave part (30) provided in the stroke motor joint holder (28).
In the present invention, when the above structure is used, the substance to be measured is fixed to the measuring base (39) by fixing the sensor body (1) with a transmission circuit to the hardness measuring mounting tool (38) so as to be held. The piezoelectric ceramic vibrator is moved from the pusher pin (16) through the pressure pressing surface (23) from the stroke joint (4) while automatically controlling the stroke position of the stroke joint (4) by the motor body (2) with a stroke. The load is applied to (6) and the data is transmitted from the pressure sensor signal line (10) to the control BOX through the pressure sensor cable (24), and the data sensed by the pressure sensor body (22) is transmitted as an electrical signal through the control BOX. It is output through the reading signal cable, recorded by the data reading device (35), etc., and the hardness is measured.

  Perspective view of the present invention   The perspective view which shows the use condition of this invention   The perspective view which shows the implementation state of this invention   The perspective view which shows the implementation state of this invention   The perspective view which shows the implementation state of this invention   The perspective view which shows the implementation state of this invention   The partial expansion perspective view which shows the implementation state of this invention   The perspective view which shows the implementation state of this invention   Wiring drawing showing the state of use of the present invention   A photograph showing the state of use of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sensor 筺 body with a transmission circuit 2 Motor body with a stroke 3 Stop receiving screw part 4 Stroke joint 5 Pressure sensor holder body 6 Piezoelectric ceramic vibrator 7 Vibrator outer cylinder holder 8 Vibrator holder body 9 Signal line hole 10 Pressure sensor signal line 11 vibrator joint holder 12 vibrator holder 13 vibrator holder spring 14 pusher joint holder 15 pusher holder 16 pusher pin 17 pusher spring 18 tip cylinder 19 pressure sensor holder convex part 20 pressure sensor holder concave part 21 joint convex part 22 pressure sensor Main body 23 Pressure pressing surface 24 Pressure sensor cable 25 Stroke motor signal wiring 26 Joint screw groove 27 Tightening nut 28 Stroke motor joint Luda 29 Joint set screw hole 30 Joint recess 31 Washer 32 Set screw 33 Signal line holder 34 Control box
35 Data reader device 36 Stroke signal cable 37 Data read signal cable 38 Hardness measuring fixture 39 Measuring table

Claims (1)

    A motor body with a stroke is provided on the rear side of the sensor 付 き body with transmitter circuit, and a vibrator outer cylinder holder with a pressure sensor holder body and a piezoelectric ceramic vibrator is provided on the front side of the sensor 筺 body with transmitter circuit. A plurality of signal line holes for passing the pressure sensor signal line through the vibrator holder body are provided inside the outer cylinder holder, and a vibrator joint holder is provided on the front side of the vibrator holder body. A vibrator holder spring is provided so as to be fitted into the vibrator joint holder, and a pusher holder provided so as to attach a pusher pin on the rear side of the vibrator holder body is provided so as to be fitted into the pusher joint holder. A pusher spring is provided to fit into the pusher holder with the pusher pin. Provided so that it fits into the outer tube holder of the transducer, and is provided so that the tip tube is fitted to the front surface of the piezoelectric ceramic vibrator provided at the tip of the transducer outer tube holder. A signal line holder that passes the pressure sensor signal line is provided at the top of the pressure sensor body, and the pressure sensor body with a pressure pressing surface on the front of the pressure sensor body is engaged inside the pressure sensor holder recess. Stroke motor body with stroke motor signal wiring provided to fit the pressure sensor holder protrusion provided on the transducer outer tube holder to the pressure sensor holder recess provided on the pressure sensor holder body Hold the tightening nut on the retaining screw provided on the sensor and fix it to the sensor 付 き body with the transmission circuit. The joint screw groove of the joint stroke is provided with a washer and set screw in the joint set screw hole so as to be joined to the stroke motor joint holder. A small stroke control type hardness measurement probe provided so as to be fitted in a joint recess provided.

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