JPH0743602Y2 - Dimension detector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a size detector for detecting a size.

[0002]

2. Description of the Related Art Conventional dimension detectors are used when the plunger for detecting the dimension is in a free state, as is the case with dial gauges and signal gauges, because the measuring force acts in the direction in which it is pushed out through the contact point. In the state, it is configured to indicate a dimension by pushing or output a signal.

[0003]

A dimension detector using a conventional signal gauge will be taken as an example. Figure 4
Is a conventional example of a dimension measuring device for measuring two outer diameters using a conventional signal gauge.

The fixed probe 2 is attached to the main body 11 of the signal gauge 1, and the floating probe 3 is arranged so that the contact point of the fixed probe 2 with the work 4 maintains a predetermined contact pressure with respect to the fixed work 4. Suspended. In the signal gauge 1, the plunger 12 is slidably inserted into the center of the main body 11, and in the free state, the plunger 12 is biased by a spring provided in the main body 11 in the direction in which the plunger 12 is pushed out, that is, in the arrow direction shown in FIG. A switch that is directly connected to the signal point adjusting knob 14 is screwed onto the upper portion of the main body 11,
The switch is configured to be operated by the movement of the plunger 12.

When measuring the two points such as the outer diameter, the inner diameter, and the width using the signal gauge constructed as described above, when the signal point adjusting knob 14 is operated to set the signal point, the floating apparatus 3 is set up. In addition, there is a problem in that the fixed probe 2 cannot be adjusted accurately because a force is applied in a direction away from the work 4, or it takes a lot of time even if the accurate adjustment is made.

FIG. 5 shows a conventional example of a dimension measuring device for two-point measurement using a lever type signal gauge. This is configured such that a lever 6 having a movable measuring element 5 is supported by a fulcrum A, and the lever 6 operates a switch 8 when measuring a work 7.

In such a configuration, even if the signal point adjusting knob 14 is operated to set the signal point, the floating probe 3 does not exert a force in the direction in which the fixed probe 2 separates from the work 7. However, in this case Since the lever ratio L1 to L2 may not be accurately 1: 1, it is necessary to prepare a limit value master for each limit when setting the limit value. There is a problem that the reading must be corrected.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an outer diameter or outer width size detector of the present invention comprises a housing having a shape of a signal gauge, wherein the outer surface of the first wall of the signal gauge is floated. As a device mounting surface, inside the second wall of the main body perpendicular to the first wall, at least one or more switch means are penetrated inside from the adjusting operation part outside the second wall. A plunger, which is connected to the point adjusting means and is slidable in a direction parallel to the outer surface of the first wall and biased in a direction of operating the switch, is provided inside the main body, and the plunger of the second portion is provided. A movable gauge head extending in a direction perpendicular to the center line of the plunger is fixed to a tip of the body facing the third wall of the body facing the wall of the body. Specially it is provided on the outer surface It is obtained by the.

Further, in the inner diameter or inner width dimension detector of the present invention, the outer surface of the first wall of the body of the signal gauge having a housing shape is used as the mounting surface of the floating device,
At least one switch means is connected to the signal point adjusting means penetrating the inside of the second wall of the main body perpendicular to the wall of
A plunger, which is slidable in a direction parallel to the outer surface of the first wall and biased in a direction to operate the switch, is provided inside the main body, and the plunger extends in a direction perpendicular to a center line thereof. The movable gauge head protruding from the fourth wall of the main body facing the first wall is fixed, and the fixed gauge head corresponding to the movable gauge head is provided on the outer surface of the main body. It is what

FIG. 3 shows an example of the basic structure of the signal gauge 20 used in the size detector of the present invention. A plunger 22 having a push plate 23 on its upper surface is slidably inserted into a bearing 22 inserted into a main body 21 of the signal gauge 20, and a switch 26 directly connected to the signal point adjusting knob 14 is screwed onto the upper portion of the main body 21. The push plate 23 and the switch 26 are always connected inside the main body 21, and the spring 28 is provided so as to keep the plunger 24 pushed in the free state.

[0011]

In the signal gauge 20 used in the dimension detector of the present invention constructed as described above, the spring 28 acts on the push plate 23, and in the free state, it exerts an urging force in the direction of pulling the plunger 24 into the main body 21. , For that, the push plate 23
Operates so as to always push in the switch 26. When a force is applied in the direction of pulling out the plunger 24, the push plate 23 moves downward and separates from the switch 26 to emit a signal.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the dimension detector of the present invention using the signal gauge 20 shown in FIG. 3 will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the construction of a dimension detector for measuring the outer diameter at two points.
The movable probe 30 having 9 is fixed, and the fixed probe 32 having the probe 31 is attached to the body 21 of the signal gauge so as to correspond to the probe 29, and the body 21 is suspended by the floating apparatus 3. It is configured.

In the present embodiment having the above-mentioned configuration, FIG.
Since the contact point 29 of the movable contact point 30 and the contact point 31 of the fixed contact point 32 are always in contact with the upper surface of the work 33 in the direction of the arrow shown in FIG. Even if the signal point adjusting knob 14 is operated, the floating device 3 causes the work 33 to
The fixed probe 32 can be adjusted in a stable state without being separated.

Moreover, according to the present invention, the lever ratio is not related to the lever ratio because the lever ratio is not exactly 1: 1 when the lever type signal gauge is used. It is possible to always measure in a one-to-one state, and it is possible to set a signal point with one master whose dimensions are known by using the reading of a dial gauge (not shown).

FIG. 2 is a diagram showing the construction of a dimension detector for measuring inner diameter at two points according to the present invention. In FIG. 1, the plunger 24 is projected to the lower part of the main body 21 of the signal gauge.
In this embodiment, the plunger 24 is provided inside the main body 21, and the movable measuring element 30 fixed to the plunger 24 is projected from the side surface of the main body 21 so as to correspond to the movable measuring element 30.
A fixed probe 32 is provided at the bottom of the.

In this embodiment having such a configuration, even when the signal point adjusting knob 14 is operated when setting the signal point, the tip of the movable measuring element 30 is always biased in the direction of the arrow shown in FIG. Since the tip of the fixed probe 32 is in contact with the lower surface of the inner diameter of the work 34, even if the signal point adjusting knob 14 is operated when setting the signal point, the floating probe 3 causes the fixed probe 32 to move from the work 34 to the fixed probe 32. Can be adjusted in a stable state without leaving. Further, since the plunger moves up and down, the problem of the lever ratio found in the lever type is solved, and the plunger type can measure two inner diameters.

As described above, in the present embodiment, the measurement of the inner and outer diameters of two points by the signal gauge is taken up, but the invention is not necessarily limited to the signal gauge, and the dimension detectors in general are not hindered.

[0019]

As described above, according to the present invention, in the two-point measurement of the dimension detector using the signal gauge, the signal indicator, etc., the force at the time of operating the adjusting knob for setting the signal point is fixed. Since the child works in the direction of bringing the child into close contact with the work or the limit value master, the adjustment work can be performed accurately.

Further, even if the lever ratio that occurs when the lever type dimension detector is used cannot be accurately set to 1: 1, it is possible to always maintain a 1: 1 state, so that individual workpieces can be maintained. There is no need for a corresponding limit value master, and the signal point can be accurately determined by reading one limit value master and a dial gauge, and there is an excellent effect that the measurement value reading is not corrected.

[Brief description of drawings]

FIG. 1 shows the configuration of a dimension detector for measuring two outer diameters according to the present invention.

FIG. 2 shows the configuration of a dimension detector for measuring inner diameter at two points according to the present invention.

FIG. 3 shows an example of the basic configuration of a signal gauge used in the dimension detector of the present invention.

FIG. 4 is a conventional example of a dimension measuring instrument for measuring two outer diameters using a conventional signal gauge.

FIG. 5 shows a conventional example of a dimension measuring device for two-point measurement using a lever type signal gauge.

[Explanation of symbols]

 1, 20 Signal gauge 2, 32 Fixed measuring element 3 Floating device 4, 7, 33, 34 Work piece 5, 30 Movable measuring element 6 Lever 8, 26 Switch 9 Dial gauge 11, 21 Main body 12, 24 Plunger 14 Signal point adjustment Knob 22 Bearing 23 Push plate 28 Spring 29, 31 Stylus

Claims (2)

[Scope of utility model registration request] 1. An outer surface of a first wall of a main body of a signal gauge having a housing shape is used as a mounting surface of a floating device, and an inside of a second wall of the main body perpendicular to the first wall includes:
At least one or more switch means is connected to the signal point adjusting means penetrating inward from the adjusting operation portion outside the second wall, and is slidable in a direction parallel to the outer surface of the first wall inside the main body. A plunger is provided which is movable and biased in a direction to activate the switch, and a tip protruding from the third wall of the main body facing the second wall of the plunger is perpendicular to the center line of the plunger. A dimension detector having an outer diameter or an outer width, wherein a movable measuring element extending in a direction is fixed, and a fixed measuring element corresponding to the movable measuring element is provided on an outer surface of the main body. 2. An outer surface of a first wall of a main body of a signal gauge having a housing shape is used as a mounting surface of a floating device, and inside a second wall of the main body perpendicular to the first wall,
At least one or more switch means is connected to the signal point adjusting means penetrating inward from the adjusting operation portion outside the second wall, and is slidable in a direction parallel to the outer surface of the first wall inside the main body. A plunger is provided which is movable and biased in a direction to operate the switch, and the plunger extends from a fourth wall of the main body which extends in a direction perpendicular to a center line thereof and faces the first wall. The size detector having an inner diameter or an inner width, characterized in that the movable measuring element is fixed, and a fixed measuring element corresponding to the movable measuring element is provided on the outer surface of the main body.