JPH0682503U - Measuring tool - Google Patents

Abstract

(57) [Abstract] [Purpose] In a measuring tool that measures the dimensions of a measurement object between rotating rollers, it is possible to accurately respond to changes in the dimension of the measurement object.
Make it easy to set the zero point of the gauge. A rotary roller 2 is fixed to one end of a C-shaped frame 1, a first slide member 6 connected to a micrometer 9 is attached to the other end, and the rotary roller 3 is provided on the first slide member 6. The second slide member 18 and the dial gauge 26 are attached. The micrometer 9 is operated to adjust the measurement intervals of the rotating rollers 2 and 3, and the zero point of the dial gauge 26 is adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a measuring tool for continuously measuring the thickness of a moving strip or the diameter of a wire rod.

[0002]

[Prior art and its problems]

 Conventionally, as a measuring tool for measuring the thickness of a moving strip or the diameter of a wire, there is one having a structure shown in FIG.

In this measuring tool, one of two rotating rollers 42 and 43 whose peripheral surfaces are opposed to each other is fixed to a C-shaped frame 41, and a roller shaft 44 connected to the other rotating roller 43 is attached to a frame 41. A dial gauge 45 is provided so as to be slidable and a rear end of the roller shaft 44 is brought into contact with the rotary shaft. The dial gauge 45 is used to measure the thickness and diameter.

However, in the above-described measuring tool, since the rotating rollers 42 and 43 face each other simply by the elasticity of the spring 46, when the thickness or diameter of the object to be measured changes suddenly, the rotating roller 42 , 43 strongly collide with each other at a position where the thickness and the like change abruptly, and there is a problem that the surface of the rotary roller is easily damaged or the dial gauge 45 is broken.

On the other hand, as shown in FIG. 7, the movable rotation roller 52 is attached to the sleeve 54 which can be moved forward and backward by the screw 53, and is rotated by adjusting the protrusion amount of the sleeve 54. It is considered that the measurement interval between the rollers 51 and 52 is adjusted so as to be able to respond to changes in the thickness and diameter of the measurement object.

However, in the above structure, every time the measurement interval is adjusted, it is necessary to rotate the screw 53 to advance / retreat the sleeve 54 and fix the sleeve 54 with the nut 55. However, there is a problem in that it takes a long time to match the reference points (zero points) of the gauge 56.

Therefore, the present invention solves the above problems and provides a measuring tool capable of adjusting the measurement interval of the rotating roller by a simple operation and accurately performing the zero point adjustment of the gauge. It is an object.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, this invention fixes a rotating roller to one end of a C-shaped frame, and moves a first slide member connected to the spindle of a micrometer toward the rotating roller at the other end. A second slide member that is slidably provided to this first slide member and is slidable toward the rotating roller, and an elastic member that urges the second slide member and the first slide member in a direction separating them from each other. And a rotary roller whose peripheral surfaces face each other with the fixed rotary roller attached to the end of the second slide member, and the second slide member with respect to the first slide member is attached to the first slide member. The structure is such that a gauge for detecting the amount of advance / retreat is attached.

[0009]

[Action]

 In the above structure, when the first slide member is moved by operating the micrometer, the second slide member and the rotation roller connected to the second slide member slide to change the measurement interval between both rotation rollers. be able to.

In this case, since the movement amount of the first slide member can be accurately set by the scale of the micrometer, the measurement interval can be accurately adjusted and the zero point of the gauge can be easily adjusted.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the attached FIGS. In the figure, reference numeral 1 is a C-shaped frame, and a rotary roller 2 is attached to one end of the frame via a support shaft 4.

A cylindrical hole 5 is formed at the other end of the C-shaped frame 1 so as to face the rotating roller 2, and the first slide member 6 is movably fitted inside the cylindrical hole 5. Have been combined. The first slide member 6 can be moved only in the axial direction of the cylindrical hole 5 by fitting the key 8 into the key groove 7 provided on the outer peripheral surface thereof. The spindle 10 of the micrometer 9 is connected to the.

The micrometer 9 includes a spindle 10, a sleeve 12 having a scale 11, a simple 14 having a grip portion 13, and a ratchet stop 15. When the simple 14 is rotated, the spindle 10 is rotated. It moves back and forth, and the first sliding member 6 moves toward and away from the rotating roller 2. Reference numeral 16 is a coil spring for pushing back the first slide member 6.

On the other hand, the shaft portion 19 of the second slide member 18 is movably fitted in the internal hole 17 formed in the first slide member 6, and the fork of the tip of the second slide member 18 is formed. The rotary roller 3 is attached to the shaft 20 via a support shaft 21.

The rotating roller 3 is attached so that its peripheral surface faces the peripheral surface of the stationary rotating roller 2 in parallel, and a moving object is inserted between the rotating rollers 2 and 3. Then, both rotating rollers 2 and 3 rotate to guide the object to be measured in a state of being pinched.

At the rear end of the shaft portion 19 of the second slide member 18, a retaining flange 23 that engages with the step portion 22 of the internal hole 17 of the first slide member 6 is formed. A coil spring 24 for pressing the second slide member 18 toward the fixed-side rotating roller 2 is incorporated between the rear end of the slide member 18 and the tip of the spindle 10 of the micrometer 9.

The shaft portion 27 of the dial gauge 26 is fixed to the support plate 25 attached to the tip of the first slide member 6, and the detection terminal 28 coming out of the shaft portion 27 is attached to the second slide member 6. It is adapted to come into contact with the attached engaging plate 29.

It should be noted that the reference numerals 30 and 30 provided on both sides of the two rotating rollers 2 and 3 are guide rollers for guiding the movement of the object to be measured.

The measuring tool of this embodiment has the structure as described above. When the micrometer 9 is operated to move the spindle 10 forward and backward, the first slide member 6 moves inside the cylindrical hole 5, and the second slide member 6 moves. The slide member 18 slides, and the measurement interval between the rotating rollers 2 and 3 changes.

When the object to be measured is inserted between the rotating rollers 2 and 3, the rotating roller 3 and the second slide member 18 move relative to the first slide member 6 along with the change in the thickness of the object to be measured. After moving, the amount of displacement is read on the scale of the dial gauge 26.

Now, in the actual measurement work, when measuring the dimension of a thin measurement object, the micrometer 9 is operated with both rotating rollers 2 and 3 in contact with each other as shown in FIGS. Then, the zero point of the scale of the dial gauge 26 is aligned with the needle, and the object to be measured is inserted between the two rotating rollers 2 and 3 in this state. As a result, the change in the thickness of the measured object directly changes the needle of the dial gauge 26, and the change in the thickness of the measured object can be detected by reading the scale.

On the other hand, when the thickness of the object to be measured changes greatly and, for example, a thickness of 10 mm or more is to be measured, the micrometer 9 is operated from the state shown in FIG. The spindle 10 is moved so that is 10 mm. As a result, the distance t between the two rotary rollers 2 and 3 becomes exactly 10 mm, and the thickness of the measurement object can be measured by inserting the measurement object between the rotation rollers 2 and 3. In this case, the value obtained by adding 10 mm to the scale of the needle of the dial gauge 26 is the thickness of the object to be measured.

As described above, in the measuring tool of this embodiment, the movement amount of the rotating roller 3 can be adjusted with high accuracy by operating the micrometer 9, so that the interval t between the rotating rollers 2 and 3 can be accurately adjusted. It is possible to set the zero point of the dial gauge 26 easily.

FIG. 4 shows another embodiment. In this example, instead of the dial gauge, the first slide member 6 is provided with a detection rod 31 that comes into contact with the second slide member 18, and the display rod 33 is connected to the detection rod 31 via a lead wire 32. The amount of displacement of the rotating rollers 2 and 3 is electrically displayed. The other structure is the same as that of the above-described embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

In the above example, the peripheral surfaces of the rotating rollers 2 and 3 are cylindrical surfaces, but if semicircular grooves 34 and 34 are provided on the peripheral surfaces as shown in FIG. The dimensions can be measured.

[0026]

【effect】

 As described above, according to the present invention, the gauge and the rotating roller are linked to the movement of the micrometer, so that the measurement interval between the rotating rollers can be adjusted and the zero point of the gauge can be adjusted accurately by a simple operation. Therefore, the efficiency of measurement work can be significantly improved.

Further, since the measurement and the position adjustment of the rotating roller can be mechanically performed by using a micrometer, the structure of the measuring tool can be improved as compared with the conventional case where an electric gauge is used. It has the advantages of being robust and simple, and of forming measuring instruments with few failures at low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a measuring tool of an example.

FIG. 2 is a plan view of the above.

FIG. 3 is a diagram showing an operation example of the above.

FIG. 4 is a vertical sectional front view showing another embodiment.

FIG. 5 is a front view showing another embodiment of the rotating roller.

FIG. 6 is a partially longitudinal front view showing a conventional example.

FIG. 7 is a partially longitudinal front view showing another conventional example.

[Explanation of symbols]

 1 C-shaped frame 2, 3 Rotating roller 6 First slide member 9 Micrometer 10 Spindle 18 Second slide member 24 Coil spring 26 Dial gauge 31 Detection rod 33 Indicator

Claims (1)

[Scope of utility model registration request] 1. A rotating roller is fixed to one end of a C-shaped frame, and a first slide member connected to a spindle of a micrometer is provided at the other end so as to be movable toward the rotating roller. A second slide member that is slidable toward the rotating roller is attached to the member, and an elastic member that urges the second slide member and the first slide member in a direction to separate the two is incorporated, and the second slide member is provided. A rotary roller whose peripheral surfaces face each other is attached to the end of the rotary roller, and a gauge for detecting the amount of advance / retreat of the second slide member with respect to the first slide member is attached to the first slide member. Measuring tool.