KR20180022096A - Apparatus for measuring inner diameter of artillery and method thereof - Google Patents

Abstract

The present invention relates to an apparatus for measuring an inner diameter of artillery and, more specifically, relates to an apparatus for measuring an inner diameter of artillery, which comprises: an inner diameter measurement unit measuring an inner diameter of artillery; a support unit supporting the inner diameter measurement unit by being expanded and reduced to be fitted to the inner diameter of the artillery; a first stopper restricting an insertion depth of the inner diameter measurement unit; a connection rod to which the first stopper is fixated with a central shaft of the measuring apparatus; a handle unit uniformly transmitting power to the inner diameter measurement unit; and a gauge unit determining a measurement value of the inner diameter of the artillery.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for measuring a barrel diameter,

The present invention relates to a barrel measuring apparatus and a method of operating the barrel measuring apparatus capable of measuring barrel of various diameters.

The gun wear is a phenomenon in which the gun diameter is damaged and expanded by shooting and the accuracy and usability of the gun are degraded. If the gun wear amount exceeds the predetermined standard amount, it affects the ballistic velocity, intracavity pressure, Gun measuring is considered to be one of the precision measuring tasks. In the test field or in the military, the gun diameter measurement is carried out before and after the shooting, and the diameter of the gun diameter is measured from the starting point of the mouth using the gun diameter measuring device to check the wear of the gun diameter.

FIG. 2 is a barrel measuring device capable of measuring only a 155 mm barrel introduced in the United States, which is currently being operated in a test site. The barometer has a problem that the measured value slightly changes depending on the force of pushing the handle toward the measuring probe. It is difficult to measure deep inside. In addition, there is an inconvenience that the measurement value of the manual gauge must be visually read and conveyed to the measurement requesters on the recording paper.

In order to solve the problems of the prior art, a barrel measuring device capable of measuring barrels of various diameters, improving the accuracy of measured values, efficiency in measurement, and measuring irrespective of the barrel depth, There is a purpose of.

The present invention provides a barrel diameter measuring apparatus comprising a bore diameter measuring unit for measuring the barrel diameter, a support for supporting the bore diameter measuring unit by expanding / contracting the barrel diameter, a first stopper for limiting the withdrawal depth of the bore diameter measuring unit, And a gauge unit for confirming a measurement value of the barrel diameter, a connecting rod for fixing the first stopper to a central axis of the measuring apparatus, a grip for uniformly transmitting a force to the bore measuring unit, Device.

The barrel diameter measuring apparatus proposed in the present invention can measure the barrel of 155mm, 105mm and 8 "diameter in a complex manner and the barrel diameter can be easily confirmed by attaching a digital dial gauge. Therefore, The difficulty of the measuring operator can be largely solved. As a result, it is possible to obtain a great effect in terms of the convenience of the measuring operation of the barrel diameter measuring apparatus and the accuracy of measurement.

Figure 1 is a photograph of a 155 mm K9 armed assembly and a barrel inside.
2 is a photograph of a conventional barrel diameter measuring apparatus.
3 is an external view of the barrel diameter measuring apparatus of the present invention.
4 is a perspective view and a cross-sectional view of the support portion and the first stopper of the present invention.
5 is a perspective view and a cross-sectional view of the aperture measuring unit of the present invention.
6 is a cross-sectional view of the handle of the present invention.
7 is an external view of the connecting rod of the present invention.
8 is a perspective view of a gauge part of the present invention.
9 is a front view and a cross-sectional view of the gauge part of the present invention.
10 is a flow chart of the first measuring step of the present invention.
11 is a flow chart of the second measuring step of the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that the same components are denoted by the same reference numerals in the drawings. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

The present invention relates to an apparatus for measuring a barrel diameter and a method for operating the barrel diameter measuring apparatus.

Fig. 1 is a photograph showing the appearance of a 155 mm K9 armed assembly and the inside of a barrel.

FIG. 3 is a perspective view of a barrel diameter measuring apparatus according to the present invention. FIG. 3 is an external view of the barrel diameter measuring apparatus according to the present invention, showing a diameter measuring unit 30 for measuring the barrel diameter, a supporting unit 10 for supporting the diameter measuring unit by expanding / contracting the barrel diameter, (50) for fixing the first stopper to the central axis of the measuring device, a handle (40) for uniformly transmitting a force to the caliper, a barrel And a gauge section for confirming the measured value of the aperture.

5 is a perspective view and a cross-sectional view of the aperture measuring unit 30 of the present invention.

The diameter measuring unit 30 includes a probe 33 that is in point contact with the barrel diameter, a connecting bar 37 connected to the handle 40 to move back and forth along the center axis of the connecting rod 50, And a measuring part spring 31 for providing a uniform force when the bar is moved forward / backward, and the probe 33 is tensionable / retractable within a range of ± 5 mm.

 There is a problem that an error occurs due to a difference in pressing force depending on a measurer because a spring is not installed in a conventional barrel diameter measuring device. However, according to the present invention, since the measuring springs 31 are additionally provided, a certain tension is mechanically applied to reduce the deviation that occurs during the barrel diameter measurement, thereby solving the existing problems.

6 is a cross-sectional view of the handle 40 of the present invention.

The handle 40 includes a second stopper 41 protruding to fix the measuring position before measuring the barrel diameter and a second stopper engaging part 43 formed to be recessed to fix the second stopper, And serves to move the connecting rod 50 forward and backward.

The barrel measuring device further includes an adapter, a rail, a front cover, and the like. The connecting bar 37 can be extended or reduced up to a maximum of 1,000 mm to 5,000 mm according to a measuring machine,

7 is an external view of the connecting rod 50 of the present invention. A dimension indicating the depth of the barrel is indicated on the outside of the connecting rod (50), so that it is easy to set the first stopper (20) and the support part (10). The connecting rod 50 may be fastened at its left and right ends with screws.

 4 is a perspective view and a cross-sectional view of the support portion 10 and the first stopper 20 of the present invention. The support part 10 includes a support spring 15 fastened to surround the outside of the connection rod 50 and maintaining a balance of force by elasticity after contact with the first stopper 20, A support spring adjusting portion 11 for adjusting a buffering force, a roller 13 extending or reduced with respect to the central axis of the support portion and maintaining the balance of the force of the support portion together with the support spring.

9 is a front view and a cross-sectional view of the gauge part of the present invention. The gauge unit is composed of a manual gauge 60 for checking the barrel diameter with a scale and a digital dial gauge 70 for digitally confirming the barrel diameter, And a fine adjustment unit 61 capable of finely adjusting the scale while rotating the apparatus as a mechanism. The digital dial gauge 70 operates as a battery and is connected to an external storage space by an SPC communication cable to store or output measured values, and the measurement value of the barrel diameter can be switched between millimeters and inches.

Fig. 10 shows a flowchart of a first measuring step of the present invention, and Fig. 11 shows a flowchart of a second measuring step of the present invention.

The operation method of the barrel diameter measuring device includes a supporting part and a first stopper setting step (S10) to match the barrel diameter, a bore diameter measurement part introduction step (S20, S21), a step of contacting the bore diameter measurement part and the support part (Step S31), the caliper part retraction step S50 (step S50), the step of fixing the grip part, the step of measuring the barrel diameter, the step of outputting and storing the measurement data, the step of releasing the grip part, , And the measurement device releasing step (S60). The step of fixing the grip part, measuring the barrel diameter, outputting and storing the measurement data, and releasing the grip part are defined as step S40. The step of setting the support part and the first stopper (S10) A first measurement step including a sub-attraction step (S20), a step of contacting the caliper part with the support part (S30), and a step of step S40, a caliper part pulling step (S21), a caliper part A stopper contacting step (S31), and a second measuring step including step S40.

It will be apparent to those skilled in the art that various modifications and variations may be made in the present invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: Support
20: First stopper
30:
40:
50: connecting rod
60: Manual gauge
70: Digital dial gauge
11: support spring adjusting portion
13: Roller
15: Support spring
31: measuring part spring
33: Probe
35: cover
37: Connection bar
41: Second stopper
43: second stopper fastening portion
45: Lever
61:

Claims (8)

In the barrel diameter measuring apparatus,
A caliber measuring unit measuring the barrel diameter;
A support for supporting the bore-diameter measuring unit by expanding / contracting the bore diameter;
A first stopper for limiting a drawing depth of the caliper;
A connecting rod on which the first stopper is fixed to the central axis of the measuring device;
A handle for uniformly transmitting a force to the caliper;
A gauge unit for confirming the measurement value of the barrel diameter; And a measuring device for measuring the volume of the gun. The method according to claim 1,
The caliper
A probe in point contact with the barrel diameter;
A connecting bar connected to the handle and forward / backward along a center axis of the connecting rod;
A measuring part spring for providing a uniform force in forward / backward movement of the connecting bar; Wherein the barrel diameter measuring device comprises: 3. The method of claim 2,
Wherein the probe is stretchable / contractible in the range of +/- 5 mm. The method according to claim 1,
The handle
A second stopper protruding to fix the measurement position before measuring the barrel diameter;
A second stopper fastening portion having a recessed shape for fixing the second stopper; And it includes a
And the connecting rod is moved forward / backward. The method according to claim 1,
The support
A support spring that is coupled to surround the outside of the connection rod and maintains a balance of force by elasticity after contact with the first stopper;
A support spring adjusting part for tightening or loosening the support spring to adjust a buffering force;
A roller extending or reduced about the central axis of the support portion and maintaining the balance of the force of the support portion together with the support portion spring; And a measuring device for measuring the volume of the gun. The method according to claim 1,
The gauge section
A manual gauge capable of checking the barrel diameter with a scale;
A digital dial gauge capable of digitally verifying the barrel diameter; And a measuring device for measuring the volume of the gun. The method according to claim 6,
Wherein the digital dial gauge is operated as a battery and connected to an external storage space by an SPC communication cable to store or output measured values. In the barrel diameter measuring apparatus,
Setting a supporting part and a first stopper according to the barrel diameter;
A step of introducing a caliper part into the barrel;
A step of contacting the caliper part and the support part;
The caliper measuring unit and the first stopper contacting step;
A gripping step;
Measuring the barrel diameter;
Releasing the grip portion;
Outputting and storing measurement data;
The caliper measuring unit retracting step;
The measuring device releasing step; And measuring the volume of the barrel.

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