JP2905412B2 - Scissor gauge tester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scissor gauge tester. In particular, it is used for inspecting a so- called scissor gauge in which the upper and lower limits of the tolerance are set between the opposite cage surfaces of the U-shaped gauge body according to the upper and lower dimensions.
It is .

[0002]

2. Description of the Related Art The size and accuracy of a scissor gauge are specified in JIS, and the inspection method thereof is also specified. Conventionally, a scissor gage inspection method has been such that, after ringing a gauge block to a predetermined size, a scissor gage is inserted into these, and whether or not the scissor gage passes with a force corresponding to its own weight is inspected.

[0003]

However, in the conventional inspection method, in order to set the dimension between a plurality of gauge blocks to the dimension to be inspected, the gauge blocks must be combined many times in units of 1 μm. Therefore, many man-hours such as a combination man-hour and a ringing man-hour are required. In addition, there is also an accuracy problem such as thermal expansion by hand during ringing. As another method, inspection using a length measuring device or a three-dimensional measuring device can be considered. However, in these inspections, it takes time and labor to adjust the perpendicularity between the measurement direction and the gauge surface, and since it is a point measurement, multipoint measurement is required to check wear and dents on the gauge surface.

[0004] It is an object of the present invention to provide a scissor gauge inspection device which can greatly reduce the number of steps required for inspection and reduce the influence of thermal expansion and the like.

[0005]

In order to achieve the above object, a scissor gauge detector of the present invention has a main body, a fixing block provided on the main body, and a fixing block provided on the main body. A movable table provided so as to be movable in a direction approaching and moving away from the fixed block, a plurality of movable blocks provided at predetermined intervals along the moving direction on the movable table, and the movable table with respect to the fixed block. And a feed mechanism having a constant pressure mechanism for stopping the movement when a load exceeding a certain level acts on the movable table during the movement, and a displacement detection for detecting a moving amount of the movable table. And the fixed block and the movable block are
Postures that are aligned in the horizontal direction and project in the horizontal direction;
The fixed block and the movable block are arranged in a horizontal direction
Legs that can be installed in a posture that protrudes upwards are provided.
It is characterized by having been done.

Here, the fixed block and the movable block each have a reference surface on an outer surface in a direction in which they are separated from each other,
The constant pressure mechanism may be configured to stop moving when a load equal to or more than a certain amount acts on the movable table in the direction in which the movable table moves away from the fixed block. Further, the main body may be configured to be installed in a posture in which the fixed block and the movable block are arranged in a horizontal direction and a posture in which the fixed block and the movable block are arranged in a vertical direction.

[0007]

When inspecting the scissor gauge, the movable table is moved in the direction of approaching and leaving the fixed block while operating the feed mechanism. Then, the movement amount of the movable base is detected by the displacement detector. Here, while observing the value of the displacement detector, the interval between the fixed block and any of the movable blocks is set to the inspection target dimension of the scissor gauge . In this state, it is inserted between the fixed block and one of the movable block rust gauge, inspected on whether passing through its own weight.

As another method, after inserting a scissor gauge between a fixed block and one of the movable blocks, the movable table is moved in a direction away from the fixed block while operating the feed mechanism. After the fixed block and any of the movable blocks abut the gauge surface of the scissor gauge, the constant pressure mechanism is operated. Then, when a load more than a certain level acts on the movable table, that is, when the measured pressure reaches a certain level, the movement is stopped.If the value of the displacement detector is read in this state, the distance between the gauge surfaces of the scissor gauge The dimensions can be determined.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a scissor gauge inspection apparatus of the present embodiment. The scissor gauge inspecting apparatus includes a scissor gauge inspector 1 as a dimension inspector, and a counter 2 for digitally displaying dimensions and the like set (measured) by the scissor gauge inspector 1. Incidentally, 3 with scissors gauge as the test object, U-shaped gauge body 4 opposite tolerances between the gauge surface of the inner surface upper dimension L _U, as side 5A and blind side 5B having a lower dimension L _L is formed Have been.

As shown in FIGS. 2 and 3, the scissors device 1 includes a main body 11, a fixed block 12 fixed to one end of the main body 11, and a sliding bearing 13 connected to the main body 11. Movable table 14 provided to be movable toward and away from the fixed block 11
And a plurality (three) of movable blocks 151 to ₁ provided on the movable base 14 at predetermined intervals along the moving direction.
Comprises a 5 _3, closer to the movable table 14 with respect to the fixed block 12, a feed mechanism 16 for moving in a direction away, and a displacement detector 17 for detecting the amount of movement of the carriage 14.

The fixed block 12 has a reference surface 12A on its outer surface. The movable block 15 _{1-15 3}
A plurality of interval setting blocks 21 are interposed between them, and they are integrally connected and fixed by a shaft 22 that penetrates a central insertion hole, and the above is fixed by a bolt or an adhesive. It is fixed to the movable base 14.
Movable block 15 ₁ to other movable blocks 152 _, 15 ₃
Interval until is set to a known dimension L _2, L _3, and the reference surface 15A on the outer surface are formed.

The feed mechanism 16 includes a feed screw shaft 23 screwed to the movable base 14 and rotatably supported by the main body 11, and a feed screw shaft 23 attached to the other end of the feed screw shaft 23. An operation handle 25 having a knob 24 for rotating the operation handle 25, and a ratchet mechanism 26 as a constant pressure mechanism provided at a distal end of the operation handle 25 are provided. The ratchet mechanism 26 moves the movable table 14 in a direction away from the fixed block 12,
When a load exceeding a certain level acts on the movable base 14, the movable base 14 idles and stops moving.
8 and a knob 29.

The displacement detector 17 is provided on the movable table 14.
A first scale 31 fixed to the upper surface, and the first scale 31;
The body 1 is opposed to the kale 31 via a mounting member 32.
And a second scale 33 fixed thereto.
The relative displacement of the rollers 31 and 33 can be measured by photoelectric, electromagnetic, static
It is configured so that it can be detected as an electric signal by a capacitance
Have been. Here, the reference surface 12A of the fixed block 12
To movable block 15 ₁Dimension L up to reference surface 15A₁
Can be detected as an electric signal.

A cover 35 is fitted on the outside of the main body 11. The cover 35, an opening 36 is formed to project the movable block 15 _{1-15 3} along a moving direction of the movable base 14 to the outside of the cover 35, the legs 37, 38 on the bottom and rear sides Is formed. In other words, the fixed block 12 and movable block 15 _{1-15 3} are installed configured to be able to position arranged in the horizontal direction. Further, as shown in FIG. 4, a posture in which established the opposite end surface of the operation handle 25, that is, the fixed block 12 and movable block 15 _{1-15 3} are installed configured to be able to position arranged in the vertical direction.

The counter 2 has a dimension and the like at an upper position.
A digital display unit 41 for digitally displaying
In addition, various function switches 42
The digital switch 43 for setting a numerical value at the position is
Each is provided. Function switch 42 and digital switch
The movable book 15 by the switch 43₁ Reference plane 15A
Each movable block 15_Two, 15_ThreeDimensions up to 15A reference surface
L_2,L_ThreeIs set, the digital display 41
Dimension L_2,L_ThreeAnd the detection value L from the displacement detector 17₁ When
From the reference surface 12A of the fixed block 12
Motion block 15 _TwoUp to the reference surface 15A (L₁ + L
_Two) Or from the reference surface 12A of the fixed block 12.
Motion block 15_ThreeUp to the reference surface 15A (L₁ + L
_Three) Is displayed on the digital display 41.
You.

Next, the inspection method of this embodiment will be described. Is
When inspecting the scissor gauge 3, the following two methods are used.
is there. The first method is the gauge of the scissor gauge 3 to be inspected.
Any movable block 15 according to the dimension between the surfaces₁~ 15
_ThreeIs selected, and the selected movable block 15 is selected.₁~ 15_ThreeAnd base
Semi movable block 15₁Is set in counter 2
Set. For example, the movable block 15₁If you select
Is not dimensioned. Movable block 15_TwoSelect
Dimension L_TwoTo the movable block 15_ThreeSelected
If dimension L _ThreeAre set respectively.

[0017] Then, so as to gauge surface dimension between dimension of snap gauge 3 between the reference surface 15A of the movable block 15 _{1-15 3} one selected as the reference surface 12A of the fixed block 12, the operation The movable table 14 is moved with respect to the fixed block 12 by rotating the handle 25. After that, as shown in FIG. 1, inserted between the movable block 15 _{1-15 3} selects the snap gauge 3 and the fixed block 12, it passes through the portion of the street side 5A with a force equivalent to its own weight, and It is checked whether or not the vehicle stops at the stop 5B.

The second method, after inserting the snap gauge 3 between the fixed block 12 and either of the movable blocks 15 ₁ to 15 _3, the fixed block movable base 14 the operating handle 25 to pivot the operation 12 in the direction away from it. Fixed block 12 and one of the movable block 15 _{1-15 3} reference surface 12A, after 15A is in contact with the gauge surface of the snap gauge 3, rotates the knob 29 of the ratchet mechanism 26. Then, when a load equal to or more than a certain value acts on the movable base 14, that is, when the measured pressure becomes a certain value, the knob 29 idles. In this state, the value on the digital display unit 41 of the counter 2 is read. this,
By performing the operation on the side 5A and the stop side 5B of the scissor gauge 3, the upper limit dimension L _U and the lower limit dimension L _L of the scissor gauge 3 can be obtained.

Therefore, according to the present embodiment, the fixed block 12 is provided on the main body 11 and the movable table 14 is provided so as to be movable toward and away from the fixed block 12. movable block 15 _1-15
3 is provided at predetermined intervals along the moving direction, and further,
Feeding mechanism 16 for moving movable table 14 and movable table 14
Is provided with the displacement detector 17 for detecting the amount of movement, it is moved the movable base 14 by the operation of the feed mechanism 16, the distance from the fixed block 12 to the movable block 15 _{1-15 3} to any size Since the setting can be made easily, the man-hour required for the inspection of the scissor gauge 3 can be greatly reduced, and the influence of thermal expansion and the like can be reduced. According to this method, the present invention can be applied not only to the inspection of the scissor gauge 3 but also to the inspection of calipers and the like.

Further, after inserting the snap gauge 3 between the fixed block 12 and either of the movable blocks 15 ₁ to 15 _3, the fixed block movable table 14 by the rotational operation of the operating handle 25 of the feed mechanism 16 12 moving in a direction away from, if read the value of the counter 2 reference plane of the fixed block 12 and one of the movable block 15 _{1-15 3} in contact with the gauge surface of the snap gauge 3,
The dimension between the gauge surfaces of the scissor gauge 3 can be measured. According to this method, the present invention can be applied not only to the inspection of the scissor gauge 3 but also to the measurement of the dimension between the inside of the measured object.

[0021] Moreover, during the measurement, after the reference surface of the fixed block 12 and one of the movable block 15 _{1-15 3} comes into contact with the gauge surface of the snap gauge 3, by rotating the knob 29 of the ratchet mechanism 26 When a load equal to or more than a predetermined value acts on the movable base 14, that is, when the measured pressure becomes a constant pressure, the knob 29 idles, so that measurement can be performed at a constant pressure.

Further, since the formation of the legs 37, 38 on the bottom and rear sides of the cover 35, in addition to the fixed block 12 and movable block 15 _{1-15 3} can be measured in a posture projecting horizontally, fixed block 12 and the movable can block 15 _{1-15 3} is measured by a position projecting upwardly. Furthermore, if the end face opposite to the operation handle 26 is provided, the fixed block 12 and the movable block 15 ₁
Since 15 ₃ can be measured in a posture arranged in the vertical direction, it can be used as such as height tester and height gauge.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and can be modified without departing from the spirit of the present invention. For example, in the case of the above embodiment, when the knob 24 is turned, the hand hits the knob 29 of the ratchet mechanism 26, so that the operability is lacking. Therefore, if the operation handle 25 and the ratchet mechanism 26 are configured as shown in FIG. 5, the above point can be solved. This means that the knob 24 is
5, the ratchet handle 29A to which the knob 24 is attached is integrally fixed to the knob 29 of the ratchet mechanism 26 by bonding or the like, and a ratchet lock ring 30 is screwed around the outer periphery of the operation handle 25.

[0024] In this structure, in the inspection of the fixed block 12 and movable block 15 _{1-15 3} in a posture arranged in the horizontal direction, as shown in FIG. 5 (A), the move the ratchet lock ring 30 to the operating handle 25 side If a gap is formed between the ratchet lock ring 30 and the ratchet handle 29A, the constant pressure measurement by the ratchet mechanism 26 is possible. Naturally, if the operation handle 25 and the ratchet handle 29A are integrated by screwing the ratchet lock ring 30 into the ratchet handle 29A side, the movable table 14 can be roughly fed by rotating the knob 24. On the other hand, the attitude of the fixed block 12 and movable block 15 _{1-15 3} aligned in the vertical direction (orientation of FIG. 4), as shown in FIG. 5 (B), the operation by screwing ratchet lock ring 30 to the ratchet wheel 29A side handle 25 and the ratchet handle 29A are integrated, and in this state, measurement or the like is performed while the movable table 14 is coarsely fed by turning the knob 24. Of course, in this case, the constant pressure measurement is not used.

[0025]

[0026]

According to the scissor gauge inspection device of the present invention,
It is possible to significantly reduce the number of steps required for the inspection and to reduce the effects of thermal expansion and the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view of the scissor gauge inspection device of the embodiment.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a perspective view showing a state where the scissor gauge inspection device of the embodiment is installed in an upright posture.

FIG. 5 is a diagram showing a part of another embodiment of the present invention.

[Explanation of symbols]

11 body 12 fixed block 12A reference plane 14 movable table 15 _{1-15 3} movable block 15A reference plane 16 feed mechanism 17 the displacement detector 26 the ratchet mechanism (pressure mechanism)

Claims (3)

(57) [Claims] 1. A main body, a fixed block provided on the main body, a movable base provided on the main body so as to be movable toward and away from the fixed block, and a movable direction provided on the movable base. A plurality of movable blocks provided at predetermined intervals along the distance, and the movable table is moved toward and away from the fixed block in a direction in which the movable table is subjected to a certain load or more. A feed mechanism having a constant pressure mechanism for stopping the movement, and a displacement detector for detecting an amount of movement of the movable table , wherein the fixed block and the movable block are arranged in a horizontal direction.
Posture and projecting horizontally, and the fixed block
And the movable blocks are aligned horizontally.
A scissor gauge tester characterized by being provided with legs that can be installed in a posture protruding in the direction . 2. The scissor gauge tester according to claim 1, wherein the fixed block and the movable block each have a reference surface on an outer surface in a direction in which the fixed block and the movable block are separated from each other. A scissor gauge inspection device characterized in that it is configured to stop the movement when a load equal to or more than a certain amount acts on the movable base in the movement in the direction away from the scissor gauge . 3. The scissors according to claim 1 or claim 2.
In gauging device, wherein the body, snap gauge tester, characterized by being installable configured respectively to position said fixed block and the movable block are arranged in position and vertically arranged in the horizontal direction.