CN218566378U

CN218566378U - Outer diameter measuring device

Info

Publication number: CN218566378U
Application number: CN202222737267.1U
Authority: CN
Inventors: 李齐; 陈先荣; 袁炯根; 余国虎; 陈晟; 李文涛
Original assignee: Avic Power Zhuzhou Aviation Parts Manufacturing Co ltd
Current assignee: Hunan Xingtu Aerospace And Spacecraft Manufacturing Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-03
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses an external diameter measuring device, include: the support assembly comprises a base used for being placed on a working plane, and the surface of the base is used for supporting the outer annular surface of the annular workpiece; the support assembly also comprises a positioning component for positioning and supporting one axial end face of the annular workpiece; the measuring meter piece is arranged above the base, is used for acquiring a reference distance L between the measuring meter piece and the surface of the base, then zeroing the measuring meter, and is used for measuring and displaying the difference value between the outer diameter of the annular workpiece and the reference distance L; and the meter aligning part is used for enabling the measuring meter part to measure the reference interval L on the measuring meter part and then aligning to zero. The measuring device can avoid the problem that the application of too large force on the annular workpiece in the conventional test method causes the deformation of the annular workpiece to lead to inaccurate measured value, and meanwhile, the measuring device is convenient to measure after zero adjustment of the surface, and can judge whether the annular workpiece is qualified or not only by arranging the annular workpiece at a corresponding position and observing and displaying the difference value by the contact of the surface tip, and the operation is convenient and rapid.

Description

Outer diameter measuring device

Technical Field

The utility model relates to a technical field is measured to spare part external diameter, especially, relates to an external diameter measuring device.

Background

In the measurement of the annular workpiece, taking the torsion ring shown in fig. 1 as an example, the outer diameter dimension "D" phi 36.5 (0, -0.03) of the torsion ring is currently measured, and the main measurement method is as follows: measuring by a measuring scale and measuring by three coordinates; 1) Percent ruler (micrometer) measurement: as can be seen from figure 1, the part at the position of the measured dimension has insufficient structural rigidity and is very easy to deform, and when a micrometer (micrometer) is used for measurement, the measured dimension deviates due to the fact that the measuring force applied to the part is large. 2) Three-coordinate measurement: the three-coordinate measurement measuring force is small, the outer diameter size of the torsion ring can be accurately measured, the consumed time is long, a professional is required to measure, the measurement workload is too large after the parts are produced in batches, and the size control in the machining process is extremely inconvenient.

The torsion measuring ring comprises a concentric ring with the wall thickness of 2.7mm, two ribs with the length of 18 (+ 0.1,0) mm and the width of 3.4 +/-0.05 mm are axially processed on the end face of a workpiece, the two ribs are uniformly distributed in the circumferential direction, and the outer diameter of the torsion measuring ring can be measured by measuring the distance between the back surfaces of the two ribs; if a hundredth-ruler measurement is used, the force is applied so much that the measured data at each point on the torsion ring or on the rib are different. Therefore, a measuring device with small measuring force application needs to be used for measuring the part, and the conventional special measuring device for the annular workpiece is usually applied with a spring, still has the problem of large measuring force application and cannot be applied to the easily-deformed annular workpiece.

SUMMERY OF THE UTILITY MODEL

The utility model provides an external diameter measuring device to solve yielding annular work piece and measure the application of force and lead to measuring inaccurate technical problem greatly.

The utility model adopts the technical scheme as follows: an outer diameter measuring apparatus for measuring an outer diameter of a ring-shaped workpiece that is easily deformed, comprising:

the support assembly comprises a base used for being placed on a working plane, and the surface of the base is used for supporting against the outer annular surface of the annular workpiece; the support assembly further comprises a positioning component for positioning and supporting one axial end face of the annular workpiece;

the measuring meter piece is arranged above the base, is used for acquiring a reference distance L between the measuring meter piece and the surface of the base, then zeroing the measuring meter, and is used for measuring and displaying the difference value between the outer diameter of the annular workpiece and the reference distance L;

and the meter aligning part is used for enabling the measuring meter part to measure the reference distance L on the measuring meter part and then aligning the meter to zero.

As a further improvement of the above technical solution, the positioning assembly is fixedly disposed on the base, and the positioning assembly has an axial abutment surface for abutting against the first end surface of the annular workpiece to axially position the annular workpiece.

As a further improvement of the above technical solution, the positioning assembly has a radial abutment surface for abutting against an outer annular surface of the annular workpiece to radially position the annular workpiece.

As above-mentioned technical scheme's further improvement, the annular work piece is for surveying the torque ring, be formed with the rib along the axial protrusion on surveying the first terminal surface of torque ring, two the rib in circumference evenly distributed on surveying the first terminal surface of torque ring, positioning assembly including set up in the first locating piece and the second locating piece of base, first locating piece with the second locating piece and form between the base and be used for the location the constant head tank of rib, the constant head tank is used for inlaying and establishes the rib and then right survey the torque ring radial positioning.

As a further improvement of the above technical solution, the first positioning block is provided with a first pin hole and a first through hole, the base is provided with a second pin hole corresponding to the first pin hole, and a first threaded hole corresponding to the first through hole; the second positioning block is provided with a third pin hole and a second through hole, the base is provided with a fourth pin hole corresponding to the third pin hole, and a second threaded hole corresponding to the second through hole.

As a further improvement of the above technical solution, the pair of gauges has a pair of gauge supporting surfaces and a pair of gauge surfaces that are arranged in parallel at intervals, a distance between the pair of gauge supporting surfaces and the pair of gauge surfaces is a reference distance L, the pair of gauge supporting surfaces is used for being placed on the base and abutting against a surface of the base, and the pair of gauge surfaces is used for performing zero adjustment on the gauge.

As a further improvement of the technical scheme, the pair of surface limiting parts are further provided with two pairs of surface limiting surfaces which are arranged in parallel at intervals, and the distance between the two pairs of surface limiting surfaces is matched with the width of the positioning groove.

As a further improvement of the above technical solution, the support assembly includes a support disposed on the base, the support having a vertical plate and a horizontal plate; the riser is used for perpendicularly the base surface with base fixed connection, the diaphragm is located base top and parallel the surface of base, the diaphragm is used for the installation measure the table spare.

As a further improvement of the technical scheme, a mounting hole for mounting a measuring rod of the measuring meter part is vertically formed in the transverse plate in a penetrating mode, and the horizontal position of the mounting hole is matched with the horizontal position of the top end of the annular workpiece after the annular workpiece is positioned.

As a further improvement of the above technical solution, one side of the transverse plate is provided with a third threaded hole communicated with the mounting hole for mounting a meter clamp screw to fix the measuring rod of the measuring meter part in the mounting hole.

The utility model discloses following beneficial effect has: by using the outer diameter measuring device, the meter-aligning part is placed between the meter tip and the base of the measuring meter part, and the meter tip is adjusted to zero after acquiring the reference distance L; when the test is carried out, the outer ring surface of the annular workpiece is placed on the base, the annular workpiece is moved, the axial end face of the annular workpiece is positioned and supported by the positioning component arranged on the base, the annular workpiece is positioned below the measuring meter piece and is contacted with the meter tip, and the measuring meter piece displays the difference between the outer diameter of the annular workpiece and the reference distance L; the measuring device can avoid the problem that the application of too large force on the annular workpiece in the conventional test method causes the deformation of the annular workpiece to lead to inaccurate measured value, and meanwhile, the measuring device is convenient to measure after zero adjustment of the surface, and can judge whether the annular workpiece is qualified or not only by arranging the annular workpiece at a corresponding position and observing and displaying the difference value by the contact of the surface tip, and the operation is convenient and rapid.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a front view of a prior art torsion ring;

FIG. 2 is a side cross-sectional view of a prior art torsion ring;

FIG. 3 is a top half-sectional view of a prior art torsion ring;

fig. 4 is a schematic structural diagram of a use state of the measuring device according to the preferred embodiment of the present invention;

FIG. 5 is a schematic view of the structure of the measuring device according to the preferred embodiment of the present invention in a top view

Fig. 6 is a front view of a watch piece according to a preferred embodiment of the present invention;

FIG. 7 is a top plan view of a watch piece in accordance with a preferred embodiment of the present invention;

1. the gauge ring 11, the rib 2, the base 21, the second pin hole 22, the first threaded hole 3, the positioning component 31, the first positioning block 311, the first pin hole 312, the first through hole 32, the second positioning block 321, the third pin hole 322, the second through hole 4, the gauge 41, the gauge supporting surface 42, the gauge surface 43, the gauge limiting surface 5, the bracket 51, the vertical plate 52, the transverse plate 521, the mounting hole 53, the gauge clamp screw 54, the elastic gauge clamp 6, the gauge 61, the measuring rod 62, the gauge point 63 and the gauge head.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 7, a preferred embodiment of the present invention provides an outer diameter measuring device for measuring an outer diameter of an easily deformable annular workpiece, the outer diameter measuring device including:

the support assembly comprises a base 2 which is used for being placed on a working plane, and the surface of the base 2 is used for supporting the outer annular surface of the annular workpiece; the support assembly also comprises a positioning component 3 for positioning and supporting one axial end face of the annular workpiece;

the measuring meter 6 is arranged above the base 2, is used for acquiring a reference distance L between the measuring meter and the surface of the base 2, zeroing the measuring meter, and is used for measuring and displaying the difference value between the outer diameter of the annular workpiece and the reference distance L;

the meter part 4 is used for zeroing the meter after the measuring meter part 6 measures the reference distance L on the measuring meter part.

Wherein, have parallel interval setting to the piece 4 to the supporting surface 41 and to the measuring surface 42 of pair, be the reference interval L to the supporting surface 41 and to the interval between the measuring surface 42 of pair, be used for as the measurement standard of annular work piece external diameter, be used for placing in base 2 and base 2 surface butt to the supporting surface 41, be used for supplying to measure the piece 6 to the pair to zero the measuring surface 42, after the pair is zero, can measure annular work piece external diameter and reference interval L's difference and judge whether the external diameter is qualified.

It can be understood that, by using the present outer diameter measuring apparatus, the watch piece 4 is placed between the watch tip 62 of the measuring watch piece 6 and the base 2, and the measuring watch tip 62 obtains the reference distance L and then performs zero setting on the watch; when testing is carried out, the outer ring surface of the annular workpiece is arranged on the base 2, the annular workpiece is moved, the positioning assembly 3 arranged on the base 2 positions and supports the axial end surface of the annular workpiece, the annular workpiece is positioned below the measuring meter 6 and contacts with the meter tip 62, and the measuring meter 6 displays the difference value between the outer diameter of the annular workpiece and the reference distance L; the measuring device can avoid the problem that the application of too large force on the annular workpiece in the conventional test method causes the deformation of the annular workpiece to lead to inaccurate measured value, and meanwhile, the measuring device is convenient to measure after zero adjustment of the surface, and can judge whether the annular workpiece is qualified or not only by placing the annular workpiece at a corresponding position and observing the displayed difference value through the contact of the surface tip 62, and the operation is convenient and rapid.

In this embodiment, the positioning component 3 is fixedly disposed on the base 2, the positioning component 3 has an axial bearing surface for abutting against a first end surface of the annular workpiece to axially position the annular workpiece, during a test, an outer annular surface of the annular workpiece may be disposed on the base 2, the axial end surface abuts against the axial bearing surface of the positioning component 3, and by rolling the annular workpiece to pass through the gauge tip 62, a highest point of the annular workpiece may contact the gauge tip 62 during a rolling process, and then the highest point may be displayed by the gauge head 63 of the measuring gauge part 6.

In some embodiments, the positioning assembly 3 may further have a radial abutment surface perpendicular to the surface of the base 2, and configured to abut against an outer annular surface of the annular workpiece to radially position the annular workpiece, that is, the radial abutment surface, the axial abutment surface, and the surface of the base 2 of the positioning assembly 3 are used to position the annular workpiece in three degrees of freedom, that is, in the X direction, the Y direction, and the Z direction, so that the top end position of the annular workpiece after being positioned is located at the position of the tip 62, which is convenient for measurement.

In this embodiment, referring to fig. 1, an annular workpiece takes a torsion measuring ring 1 as an example, a dimension to be measured "D" phi 36.5 (0, -0.03) mm of the torsion measuring ring 1 is measured, a wall thickness is 2.7mm, a rib 11 is formed on a first end surface of the torsion measuring ring 1 in a protruding manner along an axial direction, two ribs 11 are uniformly distributed on the first end surface of the torsion measuring ring 1 in a circumferential direction, and a length of the rib 11 is 18 (+ 0.1,0) and a width of the rib 11 is 3.4 ± 0.05; based on the structure of the torsion measuring ring 1, the positioning assembly 3 comprises a first positioning block 31 and a second positioning block 32 which are arranged on the base 2, positioning grooves for positioning the ribs 11 are formed between the first positioning block 31, the second positioning block 32 and the base 2, and the positioning grooves are used for embedding the ribs 11 so as to radially position the torsion measuring ring 1; wherein, the width that this embodiment can only the constant head tank sets up to 3.7 0.05mm, when the base 2 was put to the swing ring 1 of will surveying, in its rib 11 embedding constant head tank until surveying the first terminal surface (axial terminal surface) of swing ring 1 respectively with first locating piece 31, the butt of second locating piece 32 is accomplished and is leaned on, the constant head tank has restricted the rotation of surveying swing ring 1 this moment and to the radial positioning of realizing surveying swing ring 1, when surveying the swing ring 1 and being located lower rib 11 embedding constant head tank, be located the rib 11 and the contact of table point 62 of upper level, table head 63 shows the difference promptly this moment, and it is convenient to measure, and fast, and the location is accurate.

Further, the first positioning block 31 is provided with a first pin hole 311 and a first through hole 312, the base 2 is provided with a second pin hole 21 corresponding to the first pin hole 311, and is provided with a first threaded hole 22 corresponding to the first through hole 312; the second positioning block 32 is provided with a third pin hole 321 and a second through hole 322, the base 2 is provided with a fourth pin hole corresponding to the third pin hole 321, and a second threaded hole corresponding to the second through hole 322, so that the two positioning blocks can be accurately positioned and assembled on the base 2; the first through hole 321 and the second through hole 322 are both counter bores.

In this embodiment, the reference distance L is 36.5 (0, -0.005) mm, further, the pair of surface-limiting surfaces 43 are arranged in parallel at intervals on the pair of surface-limiting members 4, and the distance between the two pairs of surface-limiting surfaces 43 is matched with the width of the positioning groove, so that the pair of surface-limiting members 4 can be placed on the base 2 to adjust the position of the pair of surface-limiting members 4, and then the first positioning block 31 and the second positioning block 32 are finely adjusted and locked by screws;

in this embodiment, the support assembly includes a support 5 disposed on the base 2, the support 5 having a vertical plate 51 and a horizontal plate 52; the vertical plate 51 is used for being vertical to the surface of the base 2 and fixedly connected with the base 2, the horizontal plate 52 is positioned above the base 2 and parallel to the surface of the base 2, and the horizontal plate 52 is used for installing the measuring meter 6; wherein, the vertical plate 51 is positioned and assembled on the base 2 through a pin shaft and a screw.

In this embodiment, the transverse plate 52 is vertically provided with a mounting hole 521 for mounting the measuring rod 61 of the measuring meter 6 in a penetrating manner, the horizontal position of the mounting hole 521 is matched with the horizontal position of the top end of the positioned annular workpiece, and the meter clamp of the measuring meter 6 penetrates through the mounting hole 521 to enable the measuring rod 61 to be embedded into the mounting hole 521 to complete assembly; in order to avoid interference, the width of the part of the transverse plate above the positioning block is reduced, so that tools such as a screwdriver and the like can lock and fix the positioning block;

in some embodiments, an elastic meter collet 54 is embedded in the mounting hole 521, and is used for radially positioning the measuring rod 61 by using the interference fit between the elasticity of the elastic meter collet and the measuring rod 61, so as to fix the measuring rod 61.

In some embodiments, one side of the horizontal plate 52 is opened with a third threaded hole communicating with the mounting hole 521 for mounting the meter clamp screw 53, and the measuring meter 6 is fixed by screwing the meter clamp screw 53 to abut against the measuring rod 61 for clamping and fixing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An outer diameter measuring device for measuring an outer diameter of an annular workpiece which is easily deformed, comprising:

the support assembly comprises a base (2) used for being placed on a working plane, and the surface of the base (2) is used for bearing against the outer annular surface of the annular workpiece; the support assembly also comprises a positioning component (3) for positioning and supporting one axial end face of the annular workpiece;

the measuring meter piece (6) is arranged above the base (2), is used for acquiring a reference distance L between the measuring meter piece and the surface of the base (2), then zeroing the measuring meter, and is used for measuring and displaying the difference value between the outer diameter of the annular workpiece and the reference distance L;

and the meter aligning piece (4) is used for enabling the measuring meter piece (6) to measure the reference distance L on the measuring meter piece and then aligning the meter to zero.

2. The outer diameter measuring device according to claim 1, characterized in that the positioning member (3) is fixedly arranged on the base (2), the positioning member (3) having an axial abutment surface for abutment against the first end surface of the annular workpiece for axial positioning of the annular workpiece.

3. The outer diameter measuring device according to claim 2, wherein the positioning member (3) has a radial abutment surface for abutment against an outer annular surface of the annular workpiece to radially position the annular workpiece.

4. The outer diameter measuring device according to claim 2, characterized in that the annular workpiece is a measuring torsion ring (1), a rib (11) is formed on a first end face of the measuring torsion ring (1) along an axial protrusion, the rib (11) is circumferentially and uniformly distributed on the first end face of the measuring torsion ring (1), the outer diameter measuring device is characterized in that the positioning component (3) comprises a first positioning block (31) and a second positioning block (32) which are arranged on the base (2), the first positioning block (31) and the second positioning block (32) are used for positioning a positioning groove of the rib (11) formed between the base (2), and the positioning groove is used for embedding the rib (11) and then the measuring torsion ring (1) in a radial positioning manner.

5. The outer diameter measuring device according to claim 4, wherein the first positioning block (31) is provided with a first pin hole (311) and a first through hole (312), the base (2) is provided with a second pin hole (21) corresponding to the first pin hole (311), and a first threaded hole (22) corresponding to the first through hole (312); the second positioning block (32) is provided with a third pin hole (321) and a second through hole (322), the base (2) is provided with a fourth pin hole corresponding to the third pin hole (321), and a second threaded hole corresponding to the second through hole (322).

6. The outer diameter measuring device according to claim 4, wherein the pair of gauges (4) has a pair of support surfaces (41) and a pair of measurement surfaces (42) which are arranged in parallel at intervals, a distance between the pair of support surfaces (41) and the pair of measurement surfaces (42) is a reference distance L, the pair of support surfaces (41) is used for being placed on the base (2) and abutting against a surface of the base (2), and the pair of measurement surfaces (42) is used for performing zero alignment on the measurement gauge (6).

7. The outer diameter measuring device according to claim 6, wherein the pair of surface members (4) further has two pairs of surface-limiting surfaces (43) arranged in parallel at intervals, and the distance between the two pairs of surface-limiting surfaces (43) is matched with the width of the positioning groove.

8. The outer diameter measuring device according to claim 4, characterized in that the support assembly comprises a bracket (5) provided to the base (2), the bracket (5) having a vertical plate (51) and a transverse plate (52); the vertical plate (51) is used for being perpendicular to the surface of the base (2) and is fixedly connected with the base (2), the transverse plate (52) is positioned above the base (2) and is parallel to the surface of the base (2), and the transverse plate (52) is used for installing the measuring meter piece (6).

9. The outer diameter measuring device according to claim 8, characterized in that a mounting hole (521) for mounting the measuring rod (61) of the measuring meter (6) is vertically formed in the transverse plate (52) in a penetrating manner, and the horizontal position of the mounting hole (521) is matched with the horizontal position of the top end of the annular workpiece after positioning.

10. The outer diameter measuring device as claimed in claim 9, wherein a third threaded hole communicated with the mounting hole (521) is formed in one side of the transverse plate (52) for mounting a meter clamp screw (53) so as to fix the measuring rod (61) of the measuring meter part (6) in the mounting hole (521).