JP3154928U - Thread ring gauge and its air choke member - Google Patents

Abstract

A thread ring gauge capable of easily calibrating the inner diameter of an inner surface of a measurement is provided. A main body is provided with an inner annular surface and an outer annular surface, and a thread is formed on the inner annular surface as an inner diameter D of a measurement inner surface. By forming a gap between the inner annular surface 13 and the outer annular surface 14, the first and second blocks 11 and 12 are provided with first and second holes 15 and 16, respectively. The adjustment member 2 is formed in the first hole 15 and the second hole 16, and the adjustment member 2 is adjusted by widening or narrowing the gap 10. One end of the accommodation groove 3 is formed so as to enter the inner annular surface 13 and close to the inner annular surface 13, and an opening is formed so that the other end of the accommodation groove 3 extends toward the outer annular surface 14. The block gauge 4e is accommodated between the two positioning grooves 3e. [Selection] Figure 1

Description

  The present invention relates to a thread ring gauge, and more particularly to a thread ring gauge capable of reducing the inner diameter of a measurement inner surface.

  Conventional threaded ring gauges have a very high accuracy of the above-mentioned threaded ring gauge because the measuring screw on the inner surface of the ring gauge inspects whether the screw or bolt thread meets the standard. The inner diameter of the measurement inner surface of the thread ring gauge is divided into a fixed size method and a method capable of reducing the inner diameter of the measurement inner surface. Among them, the fixed dimension type screw ring gauge processes the internal measuring screw of the required size in the main body in advance, and the fixed dimension type screw ring gauge can change the internal measuring screw. Moreover, since the thread and inner diameter of the inner surface of the measurement are worn by long-time use, the inner diameter of the screw ring gauge becomes large and cannot be used.

  Further, as a method for reducing the inner diameter of the measurement inner surface of a conventional thread ring gauge, for example, US Pat. No. 1,447,448 “thread ring gauge with flush pin” (Patent Literature) 1), where the thread ring gauge includes an adjustable gap body and sleeve. A measurement inner surface is formed on the gap body, and the measurement inner surface is used to contact an article to be measured. The sleeve is installed so as to be tightly coupled into the two holes at both ends of the gap body, so that the holes can be prevented from moving in the lateral direction relatively. The thread ring gauge also includes a device that aligns and displaces the sleeve, and the device partially extends into the sleeve so that both ends of the gap body are moved away from or close to each other. There are things that can be used.

  When using a thread ring gauge that can reduce the inner diameter of the measurement inner surface, the inner diameter of the measurement inner surface of the screw ring gauge body is first calibrated by first adjusting the adjustment screw, and then the thread ring gauge After the adjustment is continued until the inner diameter of the measurement inner surface matches the dimension to be measured, wax is injected again into the gap, and then the adjustment screw is fixed at a predetermined position by the solidified wax. When cracks occur in the solidified wax, it can be determined that the inner diameter of the measurement inner surface of the screw ring gauge body is no longer a predetermined dimension. The inner diameter must be newly calibrated. The solidified wax is extremely brittle, or when the solidified wax cracks due to falling off or changing temperature due to impact, the inner diameter of the measurement inner surface of the screw ring gauge body is newly calibrated. Otherwise, there is a risk that manufactured screws or bolts will not meet the standards.

US Public Notice 1,447,448

  The conventional fixed dimension type thread ring gauge has a problem that its life is limited and the cost of the thread ring gauge is relatively high. Then, in the thread ring gauge of the method capable of reducing the inner diameter of the measurement inner surface, the solidification used for judging whether or not the inner diameter of the measurement inner surface of the screw ring gauge body matches the calibration dimension. Since the wax is very brittle, when cracks occur in the solidified wax, calibration must be performed again to confirm the inner diameter of the measurement inner surface of the thread ring gauge body. Further, since the tolerance for calibrating the inner diameter of the measurement inner surface of the thread ring gauge main body is extremely small and is usually about 8 μm, there is a problem that adjustment is difficult. Thus, the conventional thread ring gauge as described above needs to be further improved.

  The present invention has been devised in view of such problems, and the first object is to provide a screw ring gauge that can easily calibrate the inner diameter of the measurement inner surface of the screw ring gauge body. It is something to be offered.

  The second object of the present invention is to provide a thread ring gauge capable of fixing the inner diameter of the measurement inner surface of the thread ring gauge to one calibration dimension.

  The third object of the present invention is that the thread ring gauge has a relatively long service life by repeatedly calibrating the inner diameter of the measurement inner surface of the thread ring gauge, thereby reducing the cost of the thread ring gauge. It is an object of the present invention to provide a threaded ring gauge that can keep the above low.

  The fourth object of the present invention is to provide a screw ring gauge that allows easy adjustment of the adjustment member of the screw ring gauge.

  The fifth object of the present invention is to provide a screw ring gauge capable of avoiding axial deviation at both ends of the screw ring gauge.

  The sixth object of the present invention is to provide a screw ring gauge that can prevent the block gauge from being biased or falling off by securely positioning the block gauge to be placed at a predetermined position. It is something to be offered.

  In order to achieve the above eyes, a screw ring gauge according to the present invention has a main body, at least one adjustment member, two positioning grooves, and at least one block gauge. The main body is provided with an inner annular surface and an outer annular surface, and the inner annular surface is provided with a screw thread to form the inner diameter D of the measurement inner surface. A gap is formed between the inner annular surface and the outer annular surface to form a first block and a second block, and a gap is formed from the end surfaces of the first block and the end of the second block. The first block is provided with at least one first hole, and the second block is provided with at least one second hole. The first hole and the second hole are formed so as to penetrate the end faces of the first block and the terminal end of the second block on the same axis, and at least one hole is formed so as to penetrate the outer annular surface. At least one adjusting member is formed in the first hole and the second hole, and the adjusting member is used to adjust and fix the both ends of the gap itself by moving away from each other. The two positioning grooves are formed as receiving grooves by being installed at both ends of the main body. One end of the accommodation groove is formed so as to enter the inner annular surface deeply and close to the inner annular surface, and the other end of the accommodation groove is formed to extend toward the outer annular surface. At least one block gauge is accommodated between the two positioning grooves.

  In addition, the screw ring gauge according to the present invention can be installed such that each positioning groove has an angle from two planes. The block gauge can also be a circular column. The block gauge may have a certain axial length, and the length may be smaller than the depth of the receiving groove. The block gauge may be provided with through holes, the through holes formed so as to correspond to the first hole and the second hole of the body, and the through hole can be used for the adjustment member to pass through.

  According to the screw ring gauge of the present invention, there is an advantage that the inner diameter of the measurement inner surface of the screw ring gauge main body can be easily calibrated.

  According to the screw ring gauge of the present invention, there is an advantage that the inner diameter of the measurement inner surface of the screw ring gauge can be fixed to one calibration dimension.

  According to the thread ring gauge of the present invention, the thread ring gauge has a relatively long service life by repeatedly calibrating the inner diameter of the measurement inner surface of the thread ring gauge, so that the cost of the thread ring gauge can be kept low. There is an advantage that you can.

  According to the screw ring gauge of the present invention, there is an advantage that the adjustment member of the screw ring gauge can be easily adjusted.

  The screw ring gauge of the present invention has the advantage that it is possible to avoid axial displacement at both ends of the screw ring gauge.

  According to the screw ring gauge of the present invention, there is an advantage that it is possible to prevent the block gauge from being biased or dropped out by reliably positioning the block gauge to be placed at a predetermined position.

It is a disassembled perspective view of the thread ring gauge by Example 1 of this invention. It is a side view of the thread ring gauge by Example 1 of this invention. It is a side view of the assembled state of the thread ring gauge by Example 1 of this invention. It is sectional drawing along the AA line of FIG. It is a disassembled perspective view of the thread ring gauge by Example 2 of this invention. It is a side view of the thread ring gauge by Example 2 of this invention. It is a side view of the assembled state of the thread ring gauge by Example 2 of this invention. FIG. 6 is an exploded perspective view of a thread ring gauge according to a third embodiment of the present invention. It is a side view of the assembled state of the thread ring gauge by 3rd Example of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 is an exploded perspective view of a thread ring gauge according to the first embodiment of the present invention, FIG. 2 is a side view of the thread ring gauge according to the first embodiment of the present invention, and FIG. 3 is a thread ring gauge according to the first embodiment of the present invention. It is a side view of the assembled state. 1, 2 and 3, the thread ring gauge according to the first embodiment of the present invention includes a main body 1, an adjusting member 2, at least one positioning groove 3e and at least one block gauge 4e.

  The main body 1 is provided with a gap 10, a first block 11, a second block 12, an inner annular surface 13, an outer annular surface 14, a first hole 15 and a first second hole 16. A first block 11 and a second block 12 are formed from the gap 10 in the main body 1, and a gap P is formed between the end faces of the first block 11 and the second block 12 in the gap 10. The inner annular surface 13 is formed with an inner diameter D of the measurement inner surface, and the inner annular surface 13 is provided with a thread for contacting and inspecting an article to be measured. The outer annular surface 14 is formed so as to be positioned on the outer peripheral surface of the main body 1. The first hole 15 is provided in the end face of the first block 11, the second hole 16 is provided in the end face of the second block 12, and the two holes 15, 16 are formed so as to correspond on the same axis. The In the present embodiment, the first hole 15 preferably consists of a blind hole with a thread selectively, and of course can optionally consist of a through hole. The second hole 16 is provided in the second block 12 of the main body 1, and the second hole 16 is formed so as to penetrate and communicate with the end surface of the second block 12 and the outer annular surface 14.

  In the present embodiment, the main body 1 is preferably provided with at least one buffer slit 17. The buffer slit 17 is formed so as to extend in the radial direction from the inner annular surface 13 of the main body 1 so as not to reach the outer annular surface 14 of the main body 1, and the buffer slit 17 is formed so as to penetrate the main body 1 in the axial direction. The For example, in the present embodiment, the main body 1 is preferably selectively provided with two buffer slits 17 and, of course, other numbers of buffer slits 17 can be selectively provided. In this way, when a force that contracts in the radial direction is applied to the main body 1, a more uniform circle is formed when the inner diameter D of the measurement inner surface of the main body 1 is contracted in the radial direction.

  Referring again to FIGS. 1, 2, and 3, the adjusting member 2 of the present invention penetrates the second hole 16 and is coupled to the first hole 15. For example, the adjustment member 2 of the present embodiment includes a coupling end 21 and an operating end 22. By providing the outer peripheral surface of the coupling end 21 with a screw thread for screwing in correspondence with the first hole 15, the adjusting member 2 penetrates the second hole 16 by the coupling end 21, and the tool 22 by the operating end 22. It is driven to rotate using Thereby, since the coupling end 21 of the adjustment member 2 can be screwed into the first hole 15, both ends of the gap 10 provided in the main body 1 can be moved away from each other.

  1, 2 and 3 again, in the first embodiment of the present invention, two positioning grooves 3e are selectively provided. The two positioning grooves 3e are recessed in the two end surfaces forming the first block 11 and the second block 12 in the main body 1, respectively. One end of each of the two positioning grooves 3 e is formed so as to be deep in the inner annular surface 13 and close to the inner annular surface 13. An opening is formed at the other end of the two positioning grooves 3 e so as to extend toward the outer annular surface 14. The two positioning grooves 3e are installed so as to have an angle with respect to the two planes, respectively, so that the gap between the two positioning grooves 3e and the two positioning grooves 3e is jointly formed with the receiving groove 3. Form. In the first embodiment of the present invention, the shape of the receiving groove 3 is formed in a shape approximate to a rectangle.

  4 is a cross-sectional view taken along line AA in FIG. Referring to FIG. 4, at least one block gauge 4e according to the first embodiment of the present invention is accommodated in the accommodation groove 3, and at least one block gauge 4e is formed to have a predetermined radial dimension. In this embodiment, at least one block gauge 4e is selectively formed in a cylindrical shape, and at least one block gauge 4e is formed to have a predetermined diameter A1. Furthermore, the predetermined diameter of at least one block gauge 4e can be provided in various different dimensions, and for example, designs such as A2, A3.

  Referring to FIGS. 2 and 4 again, when the threaded ring gauge according to the first embodiment of the present invention is used, at least one block gauge 4e having a predetermined diameter A1 is divided into two positioning grooves 3e and two positioning grooves 3e. The coupling end 21 is placed in the receiving groove 3 formed jointly between the two and the coupling end 21 by penetrating the coupling end 21 of the adjusting member 2 into the second hole 16 and driving the operating end 22. By screwing into the first hole 15, the gap P is gradually reduced, and continues to be reduced until the block gauge 4e having the diameter A1 is firmly sandwiched between the two positioning grooves 3e. When the adjustment member 2 cannot rotate, the inner diameter D of the measurement inner surface is formed on the inner annular surface 13 of the screw ring gauge. In this embodiment, since at least one block gauge 4e is formed to be positioned below the adjustment member 2 (in the positional relationship of FIG. 3), the adjustment member 2 is driven to rotate easily, and Since the receiving groove 3 constituted by the positioning grooves 3e is formed in a shape approximating a rectangle, at least one block gauge 4e is formed so as to be firmly held by the peripheral wall constituting the positioning groove 3e.

  Referring to FIGS. 1 and 3 again, when a thread ring gauge having a predetermined diameter D is used for a long period of time, the inner annular surface 13 of the main body 1 is worn to increase the inner diameter (D) of the measurement inner surface. When it does not meet the standard, the gap 10 of the main body 1 is enlarged only by adjusting the adjusting member 2, that is, at least one block gauge 4e having a diameter A1 is taken out, and at least one having a relatively small diameter A2 The block gauge 4e is newly placed in the housing groove 3 formed jointly by the gap located between the two positioning grooves 3e and the two positioning grooves 3e, and then the adjustment member 2 is fixed again for comparison. At least one block gauge 4e having a small diameter A2 is firmly held. Thus, the inner annular surface 13 of the main body 1 can be returned to the originally set inner diameter D of the measurement inner surface.

  In this way, by replacing at least one block gauge 4e having a successively reduced diameter (A1, A2, A3...), The adjustment member 2 is firmly clamped by at least one block gauge 4e. To the inner diameter D of the measurement inner surface that sets the inner annular surface 13 of the main body 1 can be determined. For this reason, according to the screw ring gauge of this invention, the convenience on use and operation can be improved effectively. In the present invention, the number of times that the thread ring gauge and at least one block gauge 4e can be replaced is preferably set to 3 to 4 times.

  As described above, in the screw ring gauge of the present invention, since the inner diameter of the measurement inner surface of the screw ring gauge main body can be easily calibrated, the adjustment member 2 can also be easily screwed. The block gauge 4e is securely held in the receiving groove 3, so that the first block 11 and the second block 12 of the main body 1 can be prevented from shifting in the axial direction, and at the same time The at least one block gauge 4e is surely positioned at a predetermined position, thereby preventing at least one block gauge 4e from being biased or falling off.

  FIG. 5 is an exploded perspective view of the thread ring gauge according to the second embodiment of the present invention, and FIG. 6 is a side view of the thread ring gauge according to the second embodiment of the present invention. 5 and 6, a thread ring gauge according to a second embodiment of the present invention is posted, and a main body 1 of the thread ring gauge includes a gap 10, a first block 11, and a second block 12 as in the first embodiment. The inner annular surface 13, the outer annular surface 14, the first hole 15, the second hole 16, and at least one buffer slit 17 are provided. Further, in the main body 1, one positioning groove 3 f is provided on each of two end surfaces where the first block 11 and the second block 12 are formed, and the two positioning grooves 3 f are recessed so as to face each other. In the gap 10, a gap P is formed between the end faces of the first block 11 and the second block 12, and the gap located between the two positioning grooves 3 f and the two positioning grooves 3 f is jointly a receiving groove. 3 and the shape of the receiving groove 3 is formed in a shape approximate to a rectangle.

  The adjustment member 2 includes a coupling end 21 and an operating end 22. Since the screw thread is installed on the outer peripheral surface of the coupling end 21 and can be screwed so as to correspond to the first hole 15, the adjustment member 2 penetrates the second hole 16 by the coupling end 21, By driving the operating end 22 so as to rotate using a tool, the coupling end 21 of the adjusting member 2 can be screwed into the first hole 15, and both ends of the gap 10 provided in the main body 1 can be connected to each other. Can be moved away or moved closer.

  At least one block gauge 4f is accommodated in the two positioning grooves 3f. At least one block gauge 4f is selectively formed in a circular column, and at least one block gauge 4f is formed to have a predetermined diameter A1, A2, A3,. In the second embodiment, at least one block gauge 4f has a predetermined axial length, and the length is jointly formed between the two positioning grooves 3f and the two positioning grooves 3f. It is smaller than the depth of the accommodation groove 3 to be made. At least one block gauge 4 f itself is provided with a through hole 41 in the radial direction, and the through hole 41 is formed so as to correspond to the first hole 15 and the second hole 16 of the main body 1. Further, the through hole 41 is used for the coupling end 21 of the adjusting member 2 to pass through.

  FIG. 7 is a side view of the assembled thread ring gauge according to the second embodiment of the present invention. Referring to FIG. 7, a usage state of the thread ring gauge according to the second embodiment of the present invention is posted. At least one block gauge 4f is placed in the housing groove 3 formed by jointly forming a gap located between the two positioning grooves 3f and the two positioning grooves 3f of the main body 1, and at least one block gauge 4f. The 4f through-hole 41 is made to correspond to the first hole 15 and the second hole 16 of the main body 1. The coupling end 21 of the adjusting member 2 passes through the second hole 16 and the through hole 41 in order, and is screwed into the first hole 15. As described above, at least one block gauge 4f is securely held in the receiving groove 3, thereby preventing the first block 11 and the second block 12 of the main body 1 from shifting in the axial direction. At the same time, the placed at least one block gauge 4f is surely positioned at a predetermined position, thereby preventing at least one block gauge 4f from being biased or falling off.

  As a matter of course, when the inner annular surface 13 of the main body 1 does not meet the predetermined standard due to the inner diameter D of the measurement inner surface being increased due to abrasion, by replacing at least one block gauge 4f as in the first embodiment, Control of the inner diameter D of the measurement inner surface of the main body 1 can be expected by those who are familiar with the conventional technical field.

  FIG. 8 is an exploded perspective view of a thread ring gauge according to a third embodiment of the present invention. FIG. 9 is a side view of the assembled thread ring gauge according to the third embodiment of the present invention. 8 and 9, a thread ring gauge according to a third embodiment of the present invention is posted. A main body 1 of the thread ring gauge includes a gap 10, a first block 11, and a second block 12 as in the first embodiment. The inner annular surface 13, the outer annular surface 14, the first hole 15, the second hole 16, and at least one buffer slit 17 are provided. Furthermore, one positioning groove 3g is provided on each of the two end surfaces of the main body 1 where the first block 11 and the second block 12 are formed, and the two positioning grooves 3g are recessed so as to face each other. In the gap 10, a gap P is formed between the end faces of the first block 11 and the second block 12, and the gap located between the two positioning grooves 3g and the two positioning grooves 3g is jointly formed. The accommodation groove 3 is formed, and the shape of the accommodation groove 3 is formed in a shape approximate to a rectangle.

  The adjustment member 2 includes a coupling end 21 and an operating end 22. Since the screw thread is installed on the outer peripheral surface of the coupling end 21 and can be screwed so as to correspond to the first hole 15, the adjustment member 2 penetrates the second hole 16 by the coupling end 21, By driving the operating end 22 so as to rotate using a tool, the coupling end 21 of the adjusting member 2 can be screwed into the first hole 15, and both ends of the gap 10 provided in the main body 1 can be connected to each other. Can be moved away or moved closer.

  In the third embodiment, the two block gauges 4g and 4g ′ can be placed in the housing groove 3 formed by jointly forming the gap between the two positioning grooves 3g and the two positioning grooves 3g. The two block gauges 4g, 4g ′ are selectively formed in a circular column, and the two block gauges 4g, 4g ′ are formed to have the same predetermined diameters A1, A2, A3, etc.

  Referring to FIG. 9 again, the usage state of the thread ring gauge according to the third embodiment of the present invention is posted. First, the block gauge 4 g is placed in the receiving groove 3, and then the coupling end 21 of the adjustment member 2 is passed through the second hole 16 and screwed into the first hole 15. Before the adjustment member 2 is still tightly screwed, another block gauge 4g is again placed in the above-described housing groove 3, and then the adjustment member 2 is screwed again. In this way, the two block gauges 4g ′ and 4g are securely held in the receiving groove 3, thereby preventing the first block 11 and the second block 12 of the main body 1 from shifting in the axial direction. At the same time, the block gauge 4g ′ can be prevented from falling off.

  Naturally, when the inner annular surface 13 of the main body 1 does not conform to a predetermined standard because the inner diameter D of the measurement inner surface is increased due to abrasion, the two block gauges 4g ′ and 4g are Controlling the inner diameter D of the measurement inner surface of the main body 1 by replacement can be expected by those familiar with the technical field of the related art.

  As described above, according to the screw ring gauge of the present invention, since the block gauge can be easily replaced, the inner diameter of the measurement inner surface of the screw ring gauge main body of the present invention can be easily calibrated.

  According to the screw ring gauge of the present invention, since the inner diameter of the measurement inner surface of the screw ring gauge can be fixed to one calibration dimension, the screw ring gauge of the present invention has an accurate inner diameter of the measurement inner surface. Can do.

  According to the thread ring gauge of the present invention, the thread ring gauge has a relatively long service life by repeatedly calibrating the inner diameter of the measurement inner surface of the thread ring gauge, so that the cost of the thread ring gauge can be kept low. it can.

  According to the screw ring gauge of the present invention, since the block gauge can be set at the bottom of the receiving groove, the adjustment of the adjustment member of the screw ring gauge is further simplified.

  According to the screw ring gauge of the present invention, the block gauge is provided with a through-hole through which the coupling end of the adjustment member passes, so that it is possible to avoid the occurrence of axial displacement at both ends of the screw ring gauge. In addition, the block gauge can be prevented from being biased or falling off.

  The present invention can be implemented in other ways without departing from the spirit and essential features thereof. Accordingly, the preferred embodiments described herein are illustrative and not limiting.

DESCRIPTION OF SYMBOLS 1 Main body 10 Crevice 11 1st block 12 2nd block 13 Inner annular surface 14 Outer annular surface 15 1st hole 16 2nd hole 17 Buffer slit 2 Adjustment member 21 Coupling end 22 Actuation end 3 Housing groove 3e, 3f, 3g Positioning groove 4e, 4f, 4g, 4g 'Block gauge 41 Through hole P Clearance D Inner diameter of measurement inner surface A1, A2, A3 Diameter

Claims (5)

  In a threaded ring gauge having a body (1), at least one adjusting member (2), two positioning grooves (3e) and at least one block gauge (4e), the body (1) has an inner annular surface (13). And the outer annular surface (14), and the inner annular surface (13) is threaded to form the inner diameter (D) of the measuring inner surface. The inner annular surface (13) and the outer annular surface (14) The first block (11) and the second block (12) are formed by forming a gap (10) between the first block (11) and the second block (12). The first block (11) is provided with at least one first hole (15), and the second block (12) is provided with at least one second hole (16). The first hole (15) and the second hole (16) The first block (11) and the second block (12) are formed so as to penetrate the end faces of the first block (11) and the second block (12) on the same axis, and at least one hole (16) penetrates the outer annular surface (14). At least one adjusting member (2) is formed in the first hole (15) and the second hole (16), and the adjusting member (2) moves away or closes both ends of the gap (10) itself. The two positioning grooves (3e) are formed at both ends of the main body (1) to form the receiving groove (3). One end is formed so as to enter the inner annular surface (13) deeply and close to the inner annular surface (13), and the other end of the receiving groove (3) has an opening extending toward the outer annular surface (14). Formed, at least one block gauge (4e) Thread ring, characterized in that housed between-decided Me groove (3e).   2. The thread ring gauge according to claim 1, wherein each of the positioning grooves (3e) is installed so as to have an angle from two planes.   The screw ring gauge according to claim 1 or 2, wherein the block gauge (4e) comprises a circular column.   The screw ring according to claim 1 or 2, wherein the block gauge (4e) has a certain axial length, and the length is smaller than the depth of the receiving groove (3). gauge.   The block gauge (4f) is provided with a through hole (41), and the through hole (41) is formed so as to correspond to the first hole (15) and the second hole (16) of the main body (1). The thread ring gauge according to claim 1 or 2, wherein (41) is used for the adjustment member (2) to pass through.

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