CN110530239B - Precision measuring instrument for inner diameter and outer diameter of large-diameter sealing ring - Google Patents

Precision measuring instrument for inner diameter and outer diameter of large-diameter sealing ring Download PDF

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Publication number
CN110530239B
CN110530239B CN201910915412.0A CN201910915412A CN110530239B CN 110530239 B CN110530239 B CN 110530239B CN 201910915412 A CN201910915412 A CN 201910915412A CN 110530239 B CN110530239 B CN 110530239B
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slide bar
limiting
sliding groove
rod
sealing ring
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CN201910915412.0A
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CN110530239A (en
Inventor
王晓伟
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DAHUANG MACHINERY (QINGDAO) Co.,Ltd.
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Yantai Jina Intelligent Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/08Measuring arrangements characterised by the use of mechanical means for measuring diameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/08Measuring arrangements characterised by the use of mechanical means for measuring diameters
    • G01B5/12Measuring arrangements characterised by the use of mechanical means for measuring diameters internal diameters

Abstract

The invention discloses a precision measuring instrument for the inner and outer diameters of a large-diameter sealing ring, which comprises a precision measuring platform, wherein the precision measuring platform is of a hollow structure, a first limiting sliding groove is formed in a fixed placing plate, a second scale mark is arranged at the position, close to one side of the first limiting sliding groove, of the upper surface of the fixed placing plate, a first measuring assembly is arranged in the first limiting sliding groove, and second measuring assemblies are arranged in the second limiting sliding groove and a third limiting sliding groove. According to the invention, the first measuring component can be convenient for a user to quickly measure the outer diameter of the sealing ring, the measuring accuracy of the outer diameter of the sealing ring is improved, the user can conveniently record the outer diameter numerical value of the sealing ring, the second measuring component can be convenient for the user to quickly measure the inner diameter of the sealing ring, the measuring time of the inner diameter of the sealing ring is saved, and the measuring accuracy of the inner diameter of the sealing ring is ensured.

Description

Precision measuring instrument for inner diameter and outer diameter of large-diameter sealing ring
Technical Field
The invention relates to the technical field of sealing ring inner and outer diameter measuring equipment, in particular to a large-diameter sealing ring inner and outer diameter precision measuring instrument.
Background
The selection of the material of the sealing ring has important significance on the sealing performance and the service life of the sealing ring, the performance of the material directly influences the use performance of the sealing ring, the large-diameter sealing ring is widely applied to the fields of mechanical manufacturing, industrial production, workshop processing and the like, and the inner diameter and the outer diameter of a finished product need to be effectively detected in the production and processing process of the large-diameter sealing ring, so that the production quality of the product is ensured.
Chinese patent discloses a rubber seal ring measuring tool and a measuring method thereof (No. CN 104567608A), the rubber seal ring measuring tool of the patent technology can optimize the measuring method of the rubber seal ring through an inner diameter rod with a cone frustum structure and an outer diameter rod with a cylindrical structure, and can confirm the measuring precision, thereby ensuring the quality of products, in addition, Chinese patent also discloses an inner and outer diameter precision measuring instrument (No. CN 207439384U) of a large-diameter seal ring, the inner and outer diameter precision measuring instrument of the large-diameter seal ring of the patent technology has high measuring precision, high measuring efficiency, low cost and convenient measurement, can adapt to the eccentric problem caused by manual placement, is suitable for the inner and outer diameter precision measurement of other circular ring-shaped parts, but the patent technology can solve the measuring problem of the inner and outer diameters of the seal ring, but has relatively high manufacturing cost, the measurement work needs to be assisted by more equipment and instruments, and the time and the labor are wasted. Accordingly, those skilled in the art have provided a precision measuring instrument for the inner and outer diameters of a large-diameter seal ring to solve the problems set forth in the background art.
Disclosure of Invention
The invention aims to provide a precision measuring instrument for the inner diameter and the outer diameter of a large-diameter sealing ring, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a large-diameter sealing ring inner and outer diameter precision measuring instrument comprises a precision measuring table, wherein a first fixing plate is fixedly arranged on the edge of the upper surface of the precision measuring table through a bolt, a second fixing plate is fixedly arranged at the position, close to the rear side of the first fixing plate, of the edge of the upper surface of the precision measuring table through a bolt, a fixed placing plate is welded at the joint of the first fixing plate and the second fixing plate, a third limiting chute is formed in the position, close to the lower position of the fixed placing plate, of the upper surface of the precision measuring table, a clamping assembly is fixedly arranged at the position, close to the rear side of the third limiting chute, of the upper surface of the precision measuring table, a second limiting chute is formed in the position, close to the rear side of the second limiting chute, of the upper surface of the precision measuring table, a first scale mark is arranged at the position, close to the rear side of the second limiting chute, the fixed board of placing's inside has been seted up first spacing spout, and the fixed upper surface of placing the board is close to first spacing spout one side position department and is provided with the second scale mark, the inside of first spacing spout is provided with first measuring component, the inside of second spacing spout and third spacing spout all is provided with second measuring component.
As a further scheme of the invention: first measuring component includes first contact arm, first movable block, first cylinder sleeve, first threaded rod, second cylinder sleeve, second contact arm and second movable block, the second cylinder sleeve has been cup jointed to the one end screw thread of first threaded rod, and the other end screw thread of first threaded rod has cup jointed first cylinder sleeve, the telescopic front side fixed mounting of first cylinder has first movable block, the telescopic rear side fixed mounting of second cylinder has the second movable block, the bottom fixed mounting of first movable block has first contact arm, the bottom fixed mounting of second movable block has the second contact arm, first contact arm and second contact arm all with first spacing spout sliding connection.
As a still further scheme of the invention: forward thread groove has been seted up to first cylinder telescopic inner wall, and first cylinder sleeve is hollow formula design, reverse thread groove has been seted up to second cylinder telescopic inner wall, and the second cylinder sleeve is hollow formula design.
As a still further scheme of the invention: the second measuring component comprises a first slide bar, a first connecting rod, a second slide bar, a first limiting block, a first limiting spring, a third slide bar, a second connecting rod, a second limiting spring, a second limiting block, a support bar, a fourth limiting chute and a fourth slide bar, the upper surface of the support bar is provided with the fourth limiting chute, the inside of the fourth limiting chute is connected with the third slide bar in a sliding way, the position of the inside of the fourth limiting chute, which is close to one side of the third slide bar, is connected with the fourth slide bar in a sliding way, the front side of the fourth slide bar is provided with the second slide bar, the joint of the fourth slide bar and the second slide bar is welded with the second connecting rod, the front side of the third slide bar is provided with the first slide bar, the joint of the third slide bar and the first slide bar is welded with the first connecting rod, the outside of the fourth slide bar is provided with the second limiting block, and the joint of the fourth slide bar and the second limiting block is, the outside of third slide bar is provided with first stopper, and the junction of third slide bar and first stopper is provided with first spacing spring.
As a still further scheme of the invention: first stopper and second stopper all pass through bolt fixed connection with the fourth spacing spout, and first stopper and second stopper are the cylinder structure, first stopper and second stopper are the component of wood material.
As a still further scheme of the invention: the first slide bar, the second slide bar, the third slide bar and the fourth slide bar are all equal in size, the first slide bar, the second slide bar, the third slide bar and the fourth slide bar are all members made of alloy steel, the third slide bar and the fourth slide bar are all in sliding connection with the second limiting sliding groove, and the first slide bar and the second slide bar are in sliding connection with the third limiting sliding groove respectively.
As a still further scheme of the invention: the fourth limiting sliding groove and the second limiting sliding groove are equal in size, and the fourth limiting sliding groove and the second limiting sliding groove are located on the same vertical line.
As a still further scheme of the invention: the centre gripping subassembly includes carousel, second threaded rod, briquetting and support gasket, and the quantity of centre gripping subassembly is four, the inside embedding of support gasket installs the second threaded rod, and supports the gasket and pass through bolt fixed connection with the precision measurement platform, the top fixed mounting of second threaded rod has the carousel, and the bottom swing joint of second threaded rod has the briquetting, the second threaded rod passes through threaded connection with the support gasket.
As a still further scheme of the invention: the first limiting block, the first limiting spring, the second limiting spring and the second limiting block are located inside the fourth limiting sliding groove.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the first measuring component can be convenient for a user to rapidly measure the outer diameter of the sealing ring, so that the measuring accuracy of the outer diameter of the sealing ring is improved, and the user can conveniently record the outer diameter numerical value of the sealing ring;
2. through the second measuring component, the inner diameter of the sealing ring can be quickly measured by an end user, the measuring time of the inner diameter of the sealing ring is saved, the measuring accuracy of the inner diameter of the sealing ring is guaranteed, the inner diameter and the outer diameter of the sealing ring are separately measured, the measuring accuracy is improved, the manufacturing cost is relatively low, the number of related devices needing to be assisted during measurement is reduced, the measuring time is greatly shortened, and the wide market prospect is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a precision measuring instrument for the inner and outer diameters of a large-diameter sealing ring;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a second measurement assembly in the precision measurement instrument for the inner and outer diameters of the large-diameter sealing ring;
FIG. 4 is an exploded view of a second measurement assembly of a precision measurement instrument for the inner and outer diameters of a large-diameter seal ring;
FIG. 5 is a schematic structural diagram of a first measurement assembly in a precision measurement instrument for the inner and outer diameters of a large-diameter sealing ring;
FIG. 6 is a schematic structural diagram of a clamping assembly in a precision measuring instrument for the inner and outer diameters of a large-diameter sealing ring.
In the figure: 1. a first fixing plate; 2. a first movable block; 3. a first cylindrical sleeve; 4. a first measurement assembly; 5. a first threaded rod; 6. fixing the placing plate; 7. a second cylindrical sleeve; 8. a second movable block; 9. a first limiting chute; 10. a second fixing plate; 11. a second limiting chute; 12. a second measurement assembly; 13. a second contact lever; 14. a third limiting chute; 15. a first slide bar; 16. a first contact lever; 17. a precision measuring table; 18. a second slide bar; 19. a clamping assembly; 20. a first connecting rod; 21. a support bar; 22. a third slide bar; 23. a second connecting rod; 24. a fourth limiting chute; 25. a fourth slide bar; 26. a first stopper; 27. a first limit spring; 28. a second limit spring; 29. a second limiting block; 30. a turntable; 31. a second threaded rod; 32. briquetting; 33. and supporting the gasket.
Detailed Description
Referring to fig. 1 to 6, in an embodiment of the present invention, a precision measuring instrument for inner and outer diameters of a large-diameter seal ring includes a precision measuring table 17, a first fixing plate 1 is fixedly installed on an edge of an upper surface of the precision measuring table 17 through a bolt, a second fixing plate 10 is fixedly installed on a position, close to a rear side of the first fixing plate 1, of the edge of the upper surface of the precision measuring table 17 through a bolt, a fixed placing plate 6 is welded at a joint of the first fixing plate 1 and the second fixing plate 10, a third limiting sliding chute 14 is formed in a position, close to a lower side of the fixed placing plate 6, of the upper surface of the precision measuring table 17, a clamping assembly 19 is fixedly installed on a position, close to a rear side of the third limiting sliding chute 14, the clamping assembly 19 includes a turntable 30, a second threaded rod 31, a pressing block 32, and supporting spacers 33, the number of the clamping assembly 19 is four, the supporting spacers 33 are, and support gasket 33 and precision measurement platform 17 pass through bolt fixed connection, and the top fixed mounting of second threaded rod 31 has carousel 30, and the bottom swing joint of second threaded rod 31 has briquetting 32, and second threaded rod 31 and support gasket 33 pass through threaded connection, can convenience of customers clamp the sealing washer through centre gripping subassembly 19 and handle, make it difficult emergence deformation in the measurement process, reduced the error, improved measuring accuracy.
A second limiting chute 11 is arranged at a position, close to the rear side of the clamping component 19, of the upper surface of the precision measuring table 17, a first scale mark is arranged at a position, close to the rear side of the second limiting chute 11, of the upper surface of the precision measuring table 17, the precision measuring table 17 is of a hollow structure, a first limiting chute 9 is arranged inside the fixed placing plate 6, a second scale mark is arranged at a position, close to one side of the first limiting chute 9, of the upper surface of the fixed placing plate 6, a first measuring component 4 is arranged inside the first limiting chute 9, the first measuring component 4 comprises a first contact rod 16, a first movable block 2, a first cylindrical sleeve 3, a first threaded rod 5, a second cylindrical sleeve 7, a second contact rod 13 and a second movable block 8, a second cylindrical sleeve 7 is sleeved on one end thread of the first threaded rod 5, and a first cylindrical sleeve 3 is sleeved on the other end thread of the first threaded rod 5, first cylindrical sleeve 3's front side fixed mounting has first movable block 2, second cylindrical sleeve 7's rear side fixed mounting has second movable block 8, the bottom fixed mounting of first movable block 2 has first contact lever 16, the bottom fixed mounting of second movable block 8 has second contact lever 13, first contact lever 16 and second contact lever 13 all with first spacing spout 9 sliding connection, forward thread groove has been seted up to first cylindrical sleeve 3's inner wall, and first cylindrical sleeve 3 is hollow formula design, reverse thread groove has been seted up to second cylindrical sleeve 7's inner wall, and second cylindrical sleeve 7 is hollow formula design, can the person of facilitating the use carry out the quick measurement to the external diameter of sealing washer through first measuring component 4, the measurement precision of sealing washer external diameter has been improved, the user of being convenient for records the external diameter numerical value of sealing washer.
A second measuring component 12 is arranged inside each of the second limiting sliding groove 11 and the third limiting sliding groove 14, the second measuring component 12 includes a first sliding rod 15, a first connecting rod 20, a second sliding rod 18, a first limiting block 26, a first limiting spring 27, a third sliding rod 22, a second connecting rod 23, a second limiting spring 28, a second limiting block 29, a supporting rod 21, a fourth limiting sliding groove 24 and a fourth sliding rod 25, the upper surface of the supporting rod 21 is provided with the fourth limiting sliding groove 24, the inside of the fourth limiting sliding groove 24 is connected with the third sliding rod 22 in a sliding manner, the position of the inside of the fourth limiting sliding groove 24, which is close to one side of the third sliding rod 22, is connected with the fourth sliding rod 25 in a sliding manner, the front side of the fourth sliding rod 25 is provided with the second sliding rod 18, the second connecting rod 23 is welded at the joint of the fourth sliding rod 25 and the second sliding rod 18, the front side of the third sliding rod 22 is provided with the first sliding rod 15, and the first connecting rod 20 is welded at the joint of, a second limit block 29 is arranged on the outer side of the fourth slide bar 25, a second limit spring 28 is arranged at the joint of the fourth slide bar 25 and the second limit block 29, a first limit block 26 is arranged on the outer side of the third slide bar 22, a first limit spring 27 is arranged at the joint of the third slide bar 22 and the first limit block 26, the first limit block 26 and the second limit block 29 are fixedly connected with the fourth limit chute 24 through bolts, the first limit block 26 and the second limit block 29 are both of cylindrical structures, the first limit block 26 and the second limit block 29 are both members made of solid wood, the first slide bar 15, the second slide bar 18, the third slide bar 22 and the fourth slide bar 25 are all equal in size, the first slide bar 15, the second slide bar 18, the third slide bar 22 and the fourth slide bar 25 are all members made of materials, the third slide bar 22 and the fourth slide bar 25 are both slidably connected with the second limit chute 11 through alloy steel, the first slide bar 15 and the second slide bar 18 are respectively in sliding connection with the third limiting sliding groove 14, the fourth limiting sliding groove 24 and the second limiting sliding groove 11 are equal in size, the fourth limiting sliding groove 24 and the second limiting sliding groove 11 are located on the same vertical line, the first limiting block 26, the first limiting spring 27, the second limiting spring 28 and the second limiting block 29 are located inside the fourth limiting sliding groove 24, the inner diameter of the sealing ring can be rapidly measured by a user conveniently through the second measuring assembly 12, the measuring time of the inner diameter of the sealing ring is saved, and meanwhile the measuring accuracy of the inner diameter of the sealing ring is guaranteed.
The working principle of the invention is as follows: the user firstly pulls the third slide bar 22 and the fourth slide bar 25 relatively to drive the first slide bar 15 and the second slide bar 18 to move relatively, at this time, the user puts the sealing ring above the third limiting chute 14, the sealing ring wraps the first slide bar 15 and the second slide bar 18, at this time, the user drives the second threaded rod 31 to rotate clockwise by rotating the turntable 30 clockwise, at this time, the second threaded rod 31 is driven to rotate clockwise, and further the pressing block 32 is driven to move downwards, so as to fasten one corner of the sealing ring, because the clamping components 19 are totally provided with four, the four corners of the sealing ring can be fastened through the clamping components 19, at this time, the sealing ring is not easy to loosen in the transverse and longitudinal directions, then the user loosens the third slide bar 22 and the fourth slide bar 25, and under the action of the first limiting spring 27 and the second limiting spring 28, at this time, the third slide bar 22 and the fourth, and then drive the first slide bar 15 and the second slide bar 18 to move oppositely, when the first slide bar 15 and the second slide bar 18 move to the quadrant point of the inner diameter of the seal ring, the movement is stopped, at this time, the distance between the third slide bar 22 and the fourth slide bar 25 is the inner diameter value of the seal ring, and the distance between the third slide bar 22 and the fourth slide bar 25 can be checked through the first scale mark at the rear side, the inner diameter of the seal ring can be conveniently and rapidly measured by the user through the second measuring component 12, the measuring time of the inner diameter of the seal ring is saved, and the measuring accuracy of the inner diameter of the seal ring is ensured, then the user rotates the first threaded rod 5 clockwise, at this time, the first cylindrical sleeve 3 and the second cylindrical sleeve 7 are driven to move relatively, because the first contact rod 16 and the second contact rod 13 are respectively connected with the first limiting chute 9 in a sliding manner, and further the first movable block 2 and the second movable block 8 are driven, at this time, the first contact rod 16 and the second contact rod 13 move relatively, because the first contact rod 16 and the second contact rod 13 are on the same horizontal line with the quadrant point of the seal ring, with the continuous movement of the first contact rod 16 and the second contact rod 13, when the first contact rod 16 and the second contact rod 13 are respectively contacted with the quadrant point of the seal ring, the first threaded rod 5 stops rotating, because the widths of the first movable block 2 and the first contact rod 16 are the same, and the widths of the second movable block 8 and the second contact rod 13 are the same, the distance value between the first movable block 2 and the second movable block 8 after the stop of the movement is the outer diameter value of the seal ring, the distance between the first movable block 2 and the second movable block 8 can be checked through the second scale line, and when the user rotates the first threaded rod 5, the first contact rod 16 and the second contact rod 13 are driven to move oppositely counterclockwise at this time, thereby the person of facilitating the use measures the external diameter of next sealing washer, can the person of facilitating the use carry out the rapid survey to the external diameter of sealing washer through first measuring component 4, the measurement precision of sealing washer external diameter has been improved, the user of being convenient for carries out the record to the external diameter numerical value of sealing washer, the inside and outside footpath of sealing washer is separately measured in this design, not only the measurement precision improves, and the cost is relatively lower moreover, the relevant equipment quantity with the help of when having reduced the measurement, measuring time shortens greatly, wide market prospect has.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims (7)

1. The precision measuring instrument for the inner diameter and the outer diameter of the large-diameter sealing ring comprises a precision measuring table (17) and is characterized in that a first fixing plate (1) is fixedly installed on the edge of the upper surface of the precision measuring table (17) through a bolt, a second fixing plate (10) is fixedly installed at the position, close to the rear side of the first fixing plate (1), of the edge of the upper surface of the precision measuring table (17), a fixed placing plate (6) is welded at the joint of the first fixing plate (1) and the second fixing plate (10), a third limiting sliding groove (14) is formed in the position, close to the lower side of the fixed placing plate (6), of the upper surface of the precision measuring table (17), a clamping assembly (19) is fixedly installed at the position, close to the rear side of the third limiting sliding groove (14), of the position, close to the rear side of the clamping assembly (19), of the upper surface of the precision measuring table (17), and a second limiting sliding groove (11) is, a first scale mark is arranged at a position, close to the rear side of the second limiting sliding groove (11), on the upper surface of the precision measuring table (17), the precision measuring table (17) is of a hollow structure, the first limiting sliding groove (9) is formed in the fixed placing plate (6), a second scale mark is arranged at a position, close to one side of the first limiting sliding groove (9), on the upper surface of the fixed placing plate (6), a first measuring component (4) is arranged in the first limiting sliding groove (9), second measuring components (12) are arranged in the second limiting sliding groove (11) and the third limiting sliding groove (14), each first measuring component (4) comprises a first contact rod (16), a first movable block (2), a first cylindrical sleeve (3), a first threaded rod (5), a second cylindrical sleeve (7), a second contact rod (13) and a second movable block (8), one end screw thread of first threaded rod (5) has cup jointed second cylinder sleeve (7), and the other end screw thread of first threaded rod (5) has cup jointed first cylinder sleeve (3), the front side fixed mounting of first cylinder sleeve (3) has first movable block (2), the rear side fixed mounting of second cylinder sleeve (7) has second movable block (8), the bottom fixed mounting of first movable block (2) has first contact bar (16), the bottom fixed mounting of second movable block (8) has second contact bar (13), first contact bar (16) and second contact bar (13) all with first spacing spout (9) sliding connection, second measuring component (12) include first slide bar (15), head rod (20), second slide bar (18), first stopper (26), first spacing spring (27), A third slide bar (22), a second connecting rod (23), a second limiting spring (28), a second limiting block (29), a support bar (21), a fourth limiting sliding groove (24) and a fourth slide bar (25), wherein the upper surface of the support bar (21) is provided with the fourth limiting sliding groove (24), the inside of the fourth limiting sliding groove (24) is connected with the third slide bar (22) in a sliding manner, the position of the inside of the fourth limiting sliding groove (24), which is close to one side of the third slide bar (22), is connected with the fourth slide bar (25) in a sliding manner, the front side of the fourth slide bar (25) is provided with the second slide bar (18), the joint of the fourth slide bar (25) and the second slide bar (18) is welded with the second connecting rod (23), the front side of the third slide bar (22) is provided with the first slide bar (15), and the joint of the third slide bar (22) and the first slide bar (15) is welded with the first connecting rod (, the outside of fourth slide bar (25) is provided with second stopper (29), and the junction of fourth slide bar (25) and second stopper (29) is provided with second spacing spring (28), the outside of third slide bar (22) is provided with first stopper (26), and the junction of third slide bar (22) and first stopper (26) is provided with first spacing spring (27).
2. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring is characterized in that the inner wall of the first cylindrical sleeve (3) is provided with a forward threaded groove, the first cylindrical sleeve (3) is of a hollow design, the inner wall of the second cylindrical sleeve (7) is provided with a reverse threaded groove, and the second cylindrical sleeve (7) is of a hollow design.
3. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring according to claim 1, characterized in that the first limiting block (26) and the second limiting block (29) are both fixedly connected with the fourth limiting chute (24) through bolts, the first limiting block (26) and the second limiting block (29) are both in a cylindrical structure, and the first limiting block (26) and the second limiting block (29) are both members made of solid wood.
4. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring according to claim 1, wherein the first sliding rod (15), the second sliding rod (18), the third sliding rod (22) and the fourth sliding rod (25) are all equal in size, the first sliding rod (15), the second sliding rod (18), the third sliding rod (22) and the fourth sliding rod (25) are all members made of alloy steel, the third sliding rod (22) and the fourth sliding rod (25) are all in sliding connection with the second limiting sliding groove (11), and the first sliding rod (15) and the second sliding rod (18) are respectively in sliding connection with the third limiting sliding groove (14).
5. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring according to claim 1, characterized in that the sizes of the fourth limiting sliding groove (24) and the second limiting sliding groove (11) are equal, and the fourth limiting sliding groove (24) and the second limiting sliding groove (11) are on the same vertical line.
6. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring is characterized in that the clamping assemblies (19) comprise a rotary table (30), a second threaded rod (31), a pressing block (32) and supporting gaskets (33), the number of the clamping assemblies (19) is four, the second threaded rod (31) is embedded in the supporting gaskets (33), the supporting gaskets (33) are fixedly connected with the precision measuring table (17) through bolts, the rotary table (30) is fixedly mounted at the top end of the second threaded rod (31), the pressing block (32) is movably connected at the bottom end of the second threaded rod (31), and the second threaded rod (31) is connected with the supporting gaskets (33) through threads.
7. The precision measuring instrument for the inner and outer diameters of the large-diameter sealing ring according to claim 1, wherein the first limiting block (26), the first limiting spring (27), the second limiting spring (28) and the second limiting block (29) are all located inside the fourth limiting sliding groove (24).
CN201910915412.0A 2019-09-26 2019-09-26 Precision measuring instrument for inner diameter and outer diameter of large-diameter sealing ring Active CN110530239B (en)

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CN110530239B true CN110530239B (en) 2021-06-08

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