KR101415912B1 - Apparatus for measuring inside and outside diameter - Google Patents

Abstract

The present invention relates to an inner / outer diameter measuring apparatus for measuring a width of an inner diameter or an outer diameter of a work (D) by setting a reference length of an inner diameter or an outer diameter of the work (D) to be measured by using the inner / outer diameter setting device A hollow support frame 100 having a hollow interior; A reference bar 110 provided on one side of the support frame 100 to vertically penetrate the support frame 100 and supporting the measurer 120 in close contact with the inner diameter or outer diameter of the workpiece D during measurement; A measurement bar 170 installed vertically through the other side of the support frame 100 and supporting the measuring device 180 in close contact with the inner or outer diameter of the workpiece D during measurement, Wow; And a measuring unit 270 connected to the measuring bar 170 and measuring rod 274 moved in accordance with the lateral movement of the measuring bar 170 to measure measured values of the inner diameter or outer diameter of the work D And an inner and outer diameter measuring device.
According to the present invention, the inner diameter or outer diameter of a large workpiece can be measured by a measuring bar and a reference bar provided on a support frame, and a measuring bar and a reference bar are removably installed, Therefore, there is an advantage that the measurement time can be shortened by measuring the inner or outer diameter of the workpiece by a simple operation of the operator.
Further, the moving direction of the measuring bar can be easily adjusted using the moving direction adjusting means, and the measurement value can be calculated with high precision through the dial gauge connected to the measuring bar, thereby improving the machining accuracy of the inner diameter or outer diameter of a large workpiece .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an internal-

The present invention relates to an inner / outer diameter measuring apparatus, which measures an inner diameter or an outer diameter of a component used in a precision machinery field, minimizes errors that may occur in measuring the size of each component, The present invention relates to an inner / outer diameter measuring device capable of easily measuring an inner diameter and an outer diameter of a part by an operator.

In general, when measuring the inner diameter and outer diameter of a workpiece during or after a machining operation, the inner and outer diameters of the workpiece are measured using a vernier caliper or a block gauge and compared with the reference value.

For example, a vernier caliper will be described as an example.

In general, the vernier caliper is composed of a mother and a slider. When measuring the outer diameter of the measurement object, the slider is operated to read the scale in the state that the outer measurement surface of the animal and the sludge tank are in contact with the outer diameter of the measurement object. In the case of measuring the inner diameter of the measurement object, the measurement value of the measurement object was calculated by reading the scale while the inner surface of the inner jaw and the inner surface of the inner surface of the slider were in contact with the inner surface of the measurement object by operating the slider.

Recently, a measuring device capable of measuring an extremely small inner diameter of a workpiece is disclosed in Korean Patent No. 10-0555144.

Such a measuring device can measure the inner diameter of the workpiece but can not measure the outer diameter of the workpiece.

In addition, it is impossible to measure the inner diameter or outer diameter of a large workpiece, and there is a problem in that the precision of the measurement value is low and it is impossible to use in a large-scale workpiece and parts used for aircraft parts and ships requiring high precision.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and a method for controlling a moving direction of a measuring bar, And to provide an inner and outer diameter measuring device that can be used.

According to an aspect of the present invention, there is provided an inner / outer diameter measuring apparatus for measuring an inner / outer diameter of a workpiece by setting a reference length of an inner diameter or outer diameter of a work to be measured by using an inner / Wherein the inner and outer diameters of the workpiece are measured in the inner or outer diameter of the workpiece at the time of measurement, A measurement bar which is installed to penetrate vertically on the other side of the support frame so as to support the measurement member in close contact with the inner or outer diameter of the workpiece during measurement and is movable in the left and right direction, And the measuring rod is moved in accordance with the movement of the measuring bar in the lateral direction, and the measurement value of the inner diameter or outer diameter of the workpiece is measured. That includes the meter.

A measuring bar fixing member for fixing the measuring bar is installed in the support frame, the measuring bar fixing member includes a measuring bar fixing frame formed to penetrate the measuring bar insertion hole upward and downward, A measuring bar fixed frame, a measuring bar fixing frame, a measuring bar fixing frame, a measuring bar fixing frame, a measuring bar fixing frame, a measuring bar fixing frame, So that the measuring bar fixing frame is bent to one side so that the inner wall of one side of the measuring bar insertion hole is tightened so as to press the measuring bar.

A moving direction adjusting means coupled to one side of the measuring bar fixing frame and restricting the left or right moving distance of the measuring bar fixing frame when measuring the inner diameter or outer diameter of the workpiece and elastically supporting the measuring bar fixing frame, .

Wherein the moving direction adjusting means includes a left and right moving member coupled to a lower surface of the measurement bar fixing frame and moved leftward and rightward according to the movement of the measurement bar, A rotating plate rotatable inside and contacting the left or right side surface of the left and right moving member to regulate the left and right movement of the left and right moving member; a rotating plate provided inside the rotating plate, rotated together with the rotating plate, And an elastic member accommodated in the rotation plate and the other side supported by the inner circumferential surface of the right and left shifting member to elastically support the right and left shifting members.

A handle support portion connected to a rotation plate provided inside the support frame and rotatably mounted on the support frame, and a knob support portion having one end coupled to the inside of the knob support portion and the other end protruding outward And a rotation restricting protrusion protruding from a rotation radius of the rotation knob and preventing the rotation knob from being rotated below a predetermined angle.

The inner and outer diameter measuring apparatus according to the present invention has the following effects.

According to the present invention, the inner diameter or outer diameter of a large workpiece can be measured by a measuring bar and a reference bar provided on a support frame, and the measuring bar and the reference bar can be detachably installed to change the direction of the measuring person. So that the measurement time can be shortened.

Further, the moving direction of the measuring bar can be easily adjusted using the moving direction adjusting means, and the measurement value can be calculated with high precision through the dial gauge connected to the measuring bar, thereby improving the machining accuracy of the inner diameter or outer diameter of a large workpiece .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing an inner / outer diameter setting device for setting a measurement length of an inner / outer diameter measuring device according to the present invention; Fig.
2 is a perspective view showing a configuration of a preferred embodiment of the inner and outer diameter measuring device according to the present invention.
3 is a front view showing a configuration of a preferred embodiment of the inner / outer diameter measuring device according to the present invention.
4 is a plan view showing a configuration of a preferred embodiment of the inner / outer diameter measuring device according to the present invention.
5 is a bottom view showing a configuration of a preferred embodiment of the inner / outer diameter measuring device according to the present invention.
6 is a partial sectional view showing a reference bar installed inside a support frame constituting an embodiment of the present invention.
7 is a plan view showing a measuring instrument fixing member and a measuring bar constituting an embodiment of the present invention.
8 is a front view showing an operating state of the measuring bar fixing member and the moving direction adjusting means when measuring the outer diameter constituting the embodiment of the present invention.
9 is a front view showing an operation state of the measurement bar fixing member and the movement direction adjusting means in the inner diameter measurement constituting the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the inner and outer diameter measuring apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing an inner and outer diameter setting device for setting a measurement length of the inner and outer diameter measuring device according to the present invention, and FIG. 2 is a perspective view showing a configuration of a preferred embodiment of the inner and outer diameter measuring device according to the present invention FIG. 3 is a front view showing a configuration of a preferred embodiment of the inner and outer diameter measuring apparatus according to the present invention, and FIG. 4 is a plan view showing a configuration of a preferred embodiment of the inner and outer diameter measuring apparatus according to the present invention, 5 is a bottom view showing a configuration of a preferred embodiment of the inner and outer diameter measuring apparatus according to the present invention.

1 to 5, in order to measure the inner diameter or outer diameter of the work D, the inner diameter or outer diameter of the work D to be measured is measured using the inner / outer diameter setting device 1 at an interval equal to the inner diameter or outer diameter, The reference bar 170 and the reference bar 110 are adjusted to set reference values.

The inner and outer diameter measuring device 10 having the reference value set by the inner and outer diameter setting device 1 sets the reference length of the inner diameter or outer diameter of the workpiece D to be measured by using the inner and outer diameter setting device 1, The inner and outer diameters of the inner and outer diameters of the inner and outer diameters of the inner and outer diameters of the inner and outer diameters of the support frame 100 are measured. A reference bar 110 for supporting the measurer 120 so as to closely contact the inner or outer diameter of the workpiece D and a guide bar 110 installed vertically through one side of the support frame 100, And a measuring bar 170 connected to the measuring bar 170 so that the measuring bar 170 can be moved in the lateral direction of the measuring bar 170. [ D) of the inner diameter or outer diameter, It consists of.

The support frame 100 is formed in a long tube-shaped frame in the left and right direction. The support frame 100 supports a plurality of parts inside and outside.

Upper and lower fixing guide grooves 102 and 104 are formed on the upper and lower surfaces of the support frame 100, respectively. The upper and lower fixing guide grooves 102 and 104 are vertically formed in the support frame 100 and extend in the left and right direction. The upper and lower fixing guide grooves 102 and 104 are formed on the upper surface and the lower surface of the support frame 100 and a reference bar 110 to be described later is inserted into the upper and lower fixing guide grooves 102 and 104, And is installed vertically through the support frame 100.

6 is a partial cross-sectional view showing a reference bar provided inside a support frame constituting an embodiment of the present invention.

As shown in FIG. 6, a reference bar 110 is installed in the upper and lower fixing guide grooves 102 and 104. The reference bar 110 has a rectangular cross section, and is formed long in the vertical direction. The reference bar 110 is provided so as to be movable left and right along the upper and lower fixing guide grooves 102 and 104 so that when the measured value of the inner diameter or outer diameter of the work D is set through the inner and outer diameter setting device 1 Move to the left and right to set the setting value.

Inner and outer diameter mounting holes 112 and 114 are formed below the reference bar 110. The inner and outer diameter mounting holes 112 and 114 are formed to be recessed in a circular shape at a predetermined depth on the inclined surfaces at both sides of the lower side of the reference bar 110 at an angle of 45 degrees. On the inner circumferential surface of the inner and outer diameter mounting holes 112 and 114, threads are formed, and a measurer 120, which will be described later, is screwed and fixed.

The measuring instrument 120 is coupled to the inside and outside mounting holes 112 and 114. The measurer 120 is a general measurer, and a detailed description thereof will be omitted. The measurer 120 is installed in the inner and outer diameter mounting holes 112 and 114 of the reference bar 110 and is in contact with the workpiece D.

A reference bar fixing member 130 is installed inside the support frame 100. The reference bar fixing member 130 includes a reference bar fixing frame 132 having a reference bar insertion hole 134 formed to penetrate up and down and coupled with the reference bar 110, A pressure incision groove 136 formed to penetrate from the one side of the frame 132 to the reference bar insertion hole 134 and the upper side of the reference bar fixing frame 136, A fastening member 140 screwed downward from an upper portion of the reference bar insertion hole 134 to be fastened to the side of the reference bar insertion hole 134 so as to press the side surface of the reference bar 110 Lt; / RTI >

The reference bar fixing frame 132 is formed in a rectangular parallelepiped shape and is installed inside the support frame 100. The reference bar fixing frame 132 is movably installed in the support frame 100 and supports the reference bar 110.

A reference bar insertion hole 134 is formed in the reference bar fixing frame 132. The reference bar insertion hole 134 has a rectangular shape and is vertically formed at the center of the reference bar fixing frame 132. The reference bar 110 is inserted into the reference bar insertion hole 134.

Inside the reference bar fixing frame 132, a pressure cutting groove 136 is formed. The pressure incision groove 136 is formed to have a constant width from the right side to the center of the reference bar fixing frame 132. The pressing cutout groove 136 is tightened by a tightening member 140 to be described later so that the inner wall of the reference bar insertion hole 134 presses the side surface of the reference bar 110 to be fixed to the reference bar fixing frame 132. [ The reference bar 110 is firmly fixed.

On the right side of the reference bar fixing frame 132, a fastening hole 138 is formed. The fastening hole 138 is formed to penetrate the lower surface of the reference bar fixing frame 132 in a circular shape, and a thread is formed on the inner circumferential surface. A fastening member 140, which will be described later, is screwed into the fastening hole 138.

The fastening member 140 is coupled to the inside of the fastening hole 138. The tightening member 140 is a general bolt or screw, and a detailed description thereof will be omitted. The fastening member 140 is screwed into the fastening hole 138 and presses the fastening member 140 to tighten the fastening groove 136.

A screw coupling groove 142 is formed on the upper surface of the reference bar fixing frame 132. The screw fixing grooves 142 are formed on the left and right sides of the reference bar fixing frame 132 and are formed in a circular shape on the upper surface of the reference bar fixing frame 132. A screw thread is formed on the inner circumferential surface of the screw engagement groove 142, and a fixing screw 150 to be described later is screwed.

A fixing plate 144 is provided on the upper side of the reference bar fixing frame 132. As shown in FIG. 1, the fixing plate 144 is formed of a rectangular plate, and a fixing hole 146 is formed at the center of the fixing plate 144 so as to pass through the fixing bar 144 in a shape corresponding to the cross section of the reference bar 110. The reference bar 110 is inserted into the fixing hole 146 formed at the center of the fixing plate 144 and the fixing plate 144 is coupled to the upper surface of the supporting frame 100.

Fixing screw holes 148 are formed on the left and right sides of the fixing plate 144. The fixing screw hole 148 is vertically formed on the fixing plate 144, and a thread is formed on the inner circumferential surface. A fixing screw 150 is screwed into the fixing screw hole 148.

That is, the fixing screw hole 148 of the fixing plate 144 and the screw coupling groove 142 of the reference bar fixing frame 132 are coaxially positioned, and the fixing screw hole 148, The fixing screw 150 is coupled to the inside of the support frame 100 to firmly fix the reference bar fixing frame 132 to the support frame 100.

A measurement bar movement guide hole 160 is formed on the left side of the support frame 100. The measurement bar movement guide holes 160 are formed on the upper and lower surfaces of the support frame 100 and are formed so as to pass through the upper and lower portions. The measurement bar guide hole 160 is elongated in the left and right direction, and the measurement bar 170 to be described later is inserted to guide the left and right movement.

Fig. 7 is a plan view showing a measuring instrument fixing member and a measuring bar constituting an embodiment of the present invention. Fig. 8 is a view showing the operating state of the measuring bar fixing member and the moving direction adjusting means, And FIG. 9 is a front view showing the operation state of the measuring bar fixing member and the moving direction adjusting means when measuring the inner diameter constituting the embodiment of the present invention.

7 to 9, a measurement bar 170 is installed on the left side of the support frame 100. The measuring bar 170 has a cylindrical shape and is formed to be long in the vertical direction. The measurement bar 170 is vertically installed on the left side of the support frame 100 to support a measurer 180 to be described later.

Inner and outer diameter mounting holes 172 and 174 are formed below the measurement bar 170. The inner and outer diameter mounting holes 172 and 174 are formed on both sides of the lower portion of the measurement bar 170 so as to be recessed in a circular shape by a predetermined depth. On the inner circumferential surface of the inner and outer diameter mounting holes 172 and 174, threads are formed, and a measurer 180, which will be described later, is screwed and fixed.

On the left and right sides of the measurement bar 170, a direction switching groove 182 is formed as shown in FIG. The direction changing grooves 182 are recessed by a predetermined depth. A guide pin 214, which will be described later, is inserted into the direction changing groove 182 to guide the measuring bar 170 to change its direction to a predetermined angle.

Inside the inside and outside mounting holes 172 and 174, a measurer 180 is coupled. The measurer 180 is a general measurer, and a detailed description thereof will be omitted. The measurer 180 is installed in the inner and outer diameter mounting holes 172 and 174 of the measuring bar 170 and is in contact with the workpiece D when measuring the inner and outer diameters of the workpiece D.

A measurement bar fixing member 200 is installed on the left side of the support frame 100. The measuring bar fixing member 200 includes a measuring bar fixing frame 202 having a measuring bar insertion hole 204 formed to penetrate up and down and coupled with the measuring bar 170, And a measuring bar fixing frame 202 which is installed to pass through the upper and lower sides of the pressing groove 206 and which is formed to penetrate from the one side of the fixing frame 202 to the measuring bar insertion hole 204, And a pushing member 210 which is screwed in a downward direction at an upper portion of the measuring bar insertion hole 204 and tightened so that the inner wall of the measuring bar insertion hole 204 presses the measuring bar 170.

The measuring bar fixing frame 202 has a hexahedral shape, and the left and right sides of the lower portion are further protruded outward. The measuring bar fixing frame 202 is installed inside the supporting frame 100 and is movable in the left and right direction inside the supporting frame 100 to support the measuring bar 170.

A measurement bar insertion hole 204 is formed in the measurement bar fixing frame 202. The measurement bar insertion hole 204 is formed in a circular shape and is formed to pass through the measurement bar fixing frame 202 on the right side. The measuring bar 170 is inserted into the measuring bar insertion hole 204.

A pushing groove 206 is formed in the measurement bar fixing frame 202. The pressing groove 206 is formed to be recessed with a predetermined width from the left side to the center of the measuring bar fixing frame 202. The pressing groove 206 is tightened by a pressing member 210 to be described later so that the inner wall of the measuring bar insertion hole 204 presses the side surface of the measuring bar 170 to be fixed to the measuring bar fixing frame 202 The measuring bar 170 is firmly fixed.

A screw hole 208 is formed on the left side of the measurement bar fixing frame 202. The threaded hole 208 is formed so as to penetrate the upper and lower sides of the pushing groove 206 in a circular manner, and a thread is formed on the inner circumferential surface. A pressing member 210, which will be described later, is screwed and fixed to the inside of the screw hole 208.

A pressing member 210 is coupled to the screw hole 208. The pressing member 210 is a general bolt or screw, and a detailed description thereof will be omitted. The pressing member 210 is screwed into the screw hole 208 to press the pressing groove 206 so that the clearance of the pressing groove 206 is tightened.

A guide pin hole 212 is formed on the left side of the measurement bar fixing frame 202. The guide pinhole 212 is formed to penetrate through the measurement bar insertion hole 204 from the left side in a circular shape. The guide pin hole 212 is inserted and fixed to the inside of the guide pin hole 212.

A guide pin 214 is coupled to the guide pin hole 212. The guide pin 214 is formed in a cylindrical shape and is inserted into the guide pin hole 212 and protrudes into the measurement bar insertion hole 204. The guide pin 214 is inserted into the direction changing groove 182 to guide the rotation of the measuring bar 170 so that the measuring device 180 installed on the measuring bar 170 is rotated by 180 °.

A coupling guide groove 216 is formed in a lower portion of the measurement bar fixing frame 202. The coupling guide groove 216 is recessed upward from the lower surface of the measurement bar fixing frame 202 by a predetermined depth. A later-described moving member 230 is coupled to the inside of the coupling guide groove 216.

On the left side of the measuring bar fixing frame 202, a moving direction adjusting means 220 is provided. The moving direction adjusting means 220 includes a left and right moving member 230 coupled to a lower surface of the measuring bar fixing frame 202 and moved left and right according to the movement of the measuring bar 170, (230), which rotates inside the left and right movable member (230) and contacts the left or right side surface of the left and right movable member (230) to rotate the left and right movable member The rotation plate 240 includes a rotation plate 240 and a rotation plate 240. The rotation plate 240 rotates together with the rotation plate 240. One end of the rotation plate 240 receives the rotation plate 240, An elastic member 244 supported on the inner circumferential surface of the left and right movable member 230 to elastically support the left and right movable member 230, and the like.

"자 형상으로 형성된다. 상기 좌우이동부재(230)는 수평하게 형성되는 연결부(232)와, 링 형상을 가지는 링형상부(234) 등으로 이루어진다. 상기 연결부(232)와 상기 링형상부(234)는 일체로 형성된다. 상기 연결부(232)의 우측부는 상기 결합가이드홈(216)의 내부에 결합되어, 상기 측정바고정프레임(202)의 좌우이동에 따라 좌우로 이동된다.The left and right moving member 230 is made of a plate having a predetermined thickness,

The movable member 230 includes a horizontal connection portion 232 and a ring shaped top portion 234. The connection portion 232 and the ring shaped top portion 234 are formed in a ring- The right part of the connection part 232 is coupled to the inside of the coupling guide groove 216 and is moved left and right according to the left and right movement of the measurement bar fixing frame 202.

The connection part 232 and the measurement bar fixing frame 202 are screwed together and the connection part 232 is fixed to the measurement bar fixing frame 202.

A ring-shaped upper portion 234 is formed on the left side of the connection portion 232. The ring-shaped upper portion 234 is formed in a circular ring shape, and a rotation plate 240, which will be described later, is installed to guide the measurement bar fixing frame 202 to the left and right.

A rotation plate 240 is installed in the ring-shaped upper portion 234. The rotation plate 240 has a rectangular parallelepiped shape and is installed inside the ring-shaped upper portion 234. The rotation plate 240 is rotated inside the ring-shaped upper portion 234 to form a clearance between the inner peripheral surface of the ring-shaped upper portion and the rotation plate 240.

That is, when the left side of the rotation plate is rotated 180 ° with respect to the rotation plate 240, and the left side of the rotation plate 240 comes into close contact with the inner circumference of the ring-shaped portion 234, the right side surface of the rotation plate 240, So that the measurement bar fixing frame 202 can be moved to the right side.

When the right side surface of the rotating plate is in close contact with the inner circumferential surface of the ring shaped top 234, a clearance is formed between the left side surface of the rotating plate 240 and the inner circumferential surface of the ring shaped top 234, Can be moved to the left.

Therefore, when measuring the inner diameter or outer diameter of the work D, the rotation plate 240 is adjusted to adjust the moving direction of the measuring bar fixing frame 202 in the horizontal direction.

An elastic member insertion groove 242 is formed in the rotation plate 240. The elastic member insertion groove 242 is formed in a circular shape of the rotation plate 240. An elastic member 244 is installed in the elastic member insertion groove 242. The elastic member 244 may have various elastic members other than the coil spring. Here, a coil spring is used.

One side of the elastic member 244 is inserted into the elastic member insertion groove 242 and the other side is closely attached to the inner peripheral surface of the ring- The elastic member 244 elastically supports the ring-shaped portion 234 so that the ring-shaped portion 234 is returned to its original position when the ring-shaped portion 234 is moved to the left or to the right according to the lateral movement of the measurement bar fixing frame 202.

A measuring device fixing member 260 is provided on the upper side of the measuring bar fixing frame 202. The measuring device fixing member 260 includes a measuring bar inserting part 262 provided on the upper surface of the supporting frame 100 and elongated in the left and right direction, And a side support portion 268 formed on the lower surface of the head fixing portion 266 and installed on both sides of the support frame 100. The head supporting portion 266 is formed to protrude from the head supporting portion 266,

The measurement bar inserting section 262 is formed in a long rectangular shape with a hollow interior. The measurement bar insertion portion 262 is installed on the upper surface of the support frame 100 and is coupled to the outside of the measurement bar 170.

The measurement bar insertion hole 264 is formed on the upper and lower surfaces of the measurement bar insertion portion 262. And has a rectangular shape of the measuring bar moving hole 264, and is formed so as to pass through the upper and lower sides. The measuring bar 170 is inserted into the measuring bar moving hole 264 to guide the measuring bar 170 to the left and right.

A head fixing portion 266 is formed on the right side of the measurement bar inserting portion 262. The upper portion of the head fixing portion 266 is formed in a circular ring shape having a predetermined height, and the lower portion is formed in a cylindrical shape. A measuring instrument 270 to be described later is installed on the upper surface of the head fixing portion 266.

A side support portion 268 is formed below the head fixing portion 266. The side support portion 268 is formed of a plate having a predetermined thickness and is formed to protrude downward from the head fixing portion 266. The side support portions 268 are formed as a pair and are coupled to the side surfaces of the support frame 100. The side support portion 268 is screwed to the support frame 100 to firmly fix the head securing portion 266 to the support frame 100.

A measuring device 270 is installed inside the head fixing part 266. The measuring instrument 270 is a general dial gauge and its detailed description is omitted. The head portion of the measuring instrument 270 is inserted into the head fixing portion 266 and the measuring rod 274 is positioned outside through the opening portion 272.

A transmitting member 280 is provided on the outer circumferential surface of the measuring bar 170. The transfer member 280 has a rectangular parallelepiped shape and a measurement bar fastening hole 282 is formed on the left side of the transfer bar 280 so as to be vertically penetrated. The measurement bar 170 is coupled to the inside of the measurement bar fastening hole 282.

A fastening screw hole 284 is formed on the right side surface of the transmitting member 280. The fastening screw hole 284 is formed to be recessed in a circular shape, and a thread is formed on the inner circumferential surface. A pressing plate 286 is coupled to the inside of the fastening screw hole 284.

The pressure plate 286 is formed in a circular plate shape and is screwed to the fastening screw hole 284 of the transmission member 280 and installed perpendicular to the right side surface of the transmission member 280. The pressure plate 286 is brought into close contact with the measuring rod 274 of the measuring instrument 270 to transmit the left and right movement of the measuring bar 170 to the measuring rod 274.

On the left side of the support frame 100, a knob support part 290 is provided. The knob support portion 290 has a circular plate shape and is connected to a rotation plate 240 installed inside the support frame 100. The knob support portion 290 is rotatably installed on the support frame 100 to guide the rotation of the rotary knob 292 to be described later.

A rotary knob is provided at one side of the knob support portion 290. The rotary knob 292 has a cylindrical shape, and is formed long in the left and right direction. One side of the rotary knob 292 is coupled to the inside of the knob support portion 290 and the other side is installed to protrude outward. The rotary knob 292 is rotated about the center axis of the knob support portion 290 by the user's operation.

On both sides of the pull holding portion 290, rotation regulating protrusions 294 are provided. The rotation regulating protrusion 294 protrudes forward as shown in FIG. 2 to prevent the rotation handle 292 from rotating in a downward direction.

That is, when the rotary knob 292 is rotated, the knob supporter 290 is rotated, and the rotary plate 240 connected to the knob supporter 290 is rotated 180 ° so that the measurement bar fixing frame 202 You can select left or right movement.

Hereinafter, the operation of the inner and outer diameter measuring apparatus of the present invention will be described with reference to FIGS. 1 to 9. FIG.

First, the operator places the inner / outer diameter measuring device 10 on the inner / outer diameter setting device 1. The inner and outer diameter setting device 1 is mounted such that the measuring bar 170 and the reference bar 110 of the inner and outer diameter measuring device 10 face downward. The worker inputs the dimensions to be compared with the inner diameter or outer diameter of the work D into the inner and outer diameter setting device 1 and fixes the reference bar 110 to the left and right to fix it at the reference position.

The distance between the measurer 180 of the measuring bar 170 and the measurer 120 of the reference bar 110 is set to be 1000 mm when the inner diameter of the work D is to be machined to be 1000 mm, The reference bar 110 is moved to the left and right, and the value of the measuring device 270 is set to be "0 ".

During measurement of the inner diameter and outer diameter of the work D, the direction of the measurement bar 170 and the reference bar 110 are switched and fixed.

The measuring bar fixing frame 202 and the reference bar fixing frame 120 are formed such that the measuring bar 170 and the measurer 120 of the reference bar 110 are improved in the outward direction, And the reference bar 110 and the measurement bar 170 are fixed to each other.

The measuring bar fixing frame 202 and the reference bar fixing frame 132 are formed so that the measuring bar 170 and the measurer 120 of the reference bar 110 are improved in the inner direction when measuring the outer diameter of the work D, The measurement bar 170 and the reference bar 110 are fixed to each other.

When the fixing of the measuring bar 170 and the reference bar 110 is completed, the operator uses the moving direction adjusting means 220 to measure the moving direction of the measuring bar 170 in the inner diameter measurement and the outer diameter measurement Adjust accordingly.

8, the operator rotates the rotary knob 292 so that the rotary plate 240 is brought into close contact with the inner peripheral surface of the right side of the ring-shaped portion 234, So as to be movable in the right direction.

The measurer 180 of the measuring bar 170 is inserted into the inner circumferential surface of the workpiece D and is moved in the right direction and the measuring bar 170 supporting the measurer 180 is moved in the right direction, And the measured value of the inner diameter of the work D is displayed on the measuring instrument 270. [

 7, the operator rotates the rotary knob 292 to position the rotary plate 240 so as to be in close contact with the left inner peripheral surface of the ring-shaped upper portion 234, So as to be movable in the right direction.

The measurer 180 of the measuring bar 170 is inserted into the inner circumferential surface of the workpiece D and is moved in the left direction and the measuring bar 170 supporting the measurer 180 is moved in the right direction, And the measured value of the outer diameter of the work D is displayed on the measuring instrument 270. [

Accordingly, the operator can adjust the moving direction of the measuring bar 170 by using the moving direction adjusting means 220 when measuring the inner diameter or outer diameter of the work D and easily measure the inner diameter or outer diameter of the work D have.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

10. Internal and external measuring device 100. Support frame
110. Reference bar 120,180. rater
130. Reference bar fixing member 132. Reference bar fixing frame
170. Measuring bar 200. Measuring bar fixing member
202. Measuring bar fixing frame 230. Left and right movable member
220. Moving direction adjusting means 260. Measuring device fixing member
270. Measuring device 280. Transfer member

Claims (5)

An inner / outer diameter measuring device for measuring a width of an inner diameter or an outer diameter of a workpiece (D) by setting a reference length of an inner diameter or an outer diameter of the workpiece (D) to be measured using the inner / outer diameter setting device
A hollow supporting frame 100 which is elongated in the longitudinal direction and has an inside;
A reference bar 110 provided on one side of the support frame 100 to vertically penetrate the support frame 100 and supporting the measurer 120 in close contact with the inner diameter or outer diameter of the workpiece D during measurement;
A measurement bar 170 installed vertically through the other side of the support frame 100 and supporting the measuring device 180 in close contact with the inner or outer diameter of the workpiece D during measurement, Wow;
And a measuring unit 270 connected to the measuring bar 170 and measuring rod 274 moved according to the lateral movement of the measuring bar 170 to measure measured values of an inner diameter or an outer diameter of the work D;
A measurement bar fixing member 200 for fixing the measurement bar 170 is installed in the support frame 100,
The measurement bar fixing member (200)
A measuring bar fixing frame 202 having a measuring bar insertion hole 204 formed to penetrate up and down and having the measuring bar 170 inserted therein;
A pushing groove 206 cut from one side of the measuring bar fixing frame 202 to the measuring bar insertion hole 204;
The measuring bar fixing frame 202 is vertically penetrated through the pressing groove 206 and is screwed downward from the upper part of the measuring bar fixing frame 202 to tightly press the pressing groove 206, And a pressing member (210) fastened to one side of the measuring bar (170) so that an inner wall of one side of the measuring bar insertion hole (204) presses the measuring bar (170). delete The method according to claim 1,
The measuring bar fixing frame 202 is coupled to one side of the measuring bar fixing frame 202 and restricts the left or right moving distance of the measuring bar fixing frame 202 when measuring the inner diameter or outer diameter of the work D, (220) for elastically supporting the elastic member (202). The method of claim 3,
The moving direction adjusting means (220)
A left and right moving member 230 coupled to a lower surface of the measuring bar fixing frame 202 and being moved laterally in accordance with the movement of the measuring bar 170;
The movable member 230 is installed inside the left and right movable member 230 and is rotated inside the left and right movable member 230 and contacts the left or right side surface of the left and right movable member 230, A rotation plate (240) regulating movement;
And is rotatably supported on the inner circumferential surface of the left and right shifting member 230. The rotation plate 240 is provided inside the rotation plate 240 and rotates together with the rotation plate 240. One side of the rotation plate 240 is accommodated in the rotation plate 240, And an elastic member (244) for elastically supporting the left and right shifting member (230). The support frame according to claim 4, wherein a side surface of the support frame (100) is connected to a rotation plate (240) provided inside the support frame (100) (290);
A rotary knob 292 having one end coupled to the inside of the knob support portion 290 and the other end protruding outward to rotate the knob support portion 290;
And a rotation restricting protrusion (294) protruding from a rotation radius of the rotation knob (292) and preventing the rotation knob (292) from rotating below a predetermined angle.

Images