CN219301564U - Axle center distance measuring tool - Google Patents
Axle center distance measuring tool Download PDFInfo
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- CN219301564U CN219301564U CN202320179456.3U CN202320179456U CN219301564U CN 219301564 U CN219301564 U CN 219301564U CN 202320179456 U CN202320179456 U CN 202320179456U CN 219301564 U CN219301564 U CN 219301564U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The utility model discloses a shaft center distance measuring tool, which is used for detecting the dimension of the shaft center distance of two optical axes of a crankshaft, and comprises the following components: the support piece is placed on the working platform and comprises a fixing cavity and a positioning platform, the fixing cavity is used for accommodating a connecting part between two optical axes of the crankshaft to be tested, and the positioning platform is used for supporting the optical axis of the crankshaft to be tested, which is positioned below; the height distance difference between the top of the gauge and the positioning platform is matched with the vertical distance between the preset cylindrical surface far end points of the two optical axes of the standard crankshaft; the clamping piece is arranged on the supporting piece and used for clamping the crankshaft to be tested which is arranged on the supporting piece along the horizontal direction; and the measuring device is used for measuring the height difference between the top surface of the measuring device and the top end of the optical axis positioned above. The structure is simple, the cost is low, the operation is simple and convenient, and the measurement efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of measuring tools, in particular to a measuring tool for shaft center distance.
Background
The dimension of the axial center distance between the two optical axes of a certain type of crankshaft part is the checking dimension, as shown in fig. 1, the boundary elements of the crankshaft to be tested are the axial centers of the optical axes, and as the two optical axes of the part structure are respectively on the left side and the right side, the corresponding measured dimension can not be obtained through dimension conversion by using a caliper and a percentage scale, and in the prior art, the dimension measurement is mainly carried out through three-coordinate measurement.
The three-dimensional measuring device has the advantages that the three-dimensional measuring device can directly measure the parts, the measuring precision is high, but two cylindrical surfaces of the outer circle are required to be respectively collected in the measuring process, the consumption time is long, the measuring is required to be carried out by professionals, and if the parts after batch production are measured, the workload is large and the efficiency is low.
Disclosure of Invention
The utility model provides a shaft center distance measuring tool, which aims to solve the technical problem of low efficiency of measuring the shaft center distance of optical axes at two ends of a crankshaft part in the prior art.
The technical scheme adopted by the utility model is as follows:
a shaft center distance measuring tool for detecting a shaft center distance dimension of two optical axes of a crankshaft to be measured, the measuring tool comprising:
the support piece is placed on the working platform and comprises a fixed cavity and a positioning platform, the fixed cavity is used for accommodating a connecting part between two optical axes of a crankshaft to be tested, and the positioning platform is used for supporting the optical axis of the crankshaft to be tested, which is positioned below;
the height distance difference between the top of the pair of gauge members and the positioning platform is matched with the vertical distance between the preset cylindrical surface far end points of the two optical axes of the standard crankshaft;
the clamping piece is arranged on the supporting piece and used for clamping the crankshaft to be tested which is arranged on the supporting piece in the horizontal direction;
and the measuring device is used for measuring the height difference between the top surface of the measuring device and the top end of the optical axis above the crankshaft to be measured.
As a further improvement of the technical scheme, a protruding portion is formed on the side face of the supporting piece, the pair of gauge members are connected to the protruding portion of the supporting piece, the fixing cavity is formed between the pair of gauge members and the protruding portion, and the clamping piece is used for pressing and fastening the connecting portion of the crankshaft to be tested on the positioning side of the pair of gauge members in the horizontal direction.
As a further improvement of the technical scheme, the clamping piece comprises a knurled nut and a screw connected with the knurled nut, the screw is perpendicular to the positioning side of the counter piece, and the knurled nut is used for rotating and driving the screw to axially move so as to press and fasten the crankshaft to be tested on the positioning side of the counter piece.
As a further improvement of the technical scheme, the clamping piece further comprises a pressing plate, wherein the pressing plate is arranged between the crankshaft to be tested and the end part of the screw so as to increase the stress area of the clamping of the crankshaft to be tested.
As a further improvement of the technical scheme, a pressing surface of the pressing plate for contacting the crankshaft to be tested is provided with a protective layer.
As a further improvement of the technical scheme, the supporting piece is provided with the concave part, the positioning platform is the bottom surface of the concave part, and the width of the concave part is larger than the diameter of the optical axis of the crankshaft to be tested.
As a further improvement of the technical scheme, the measuring tool further comprises a meter frame used for supporting the measuring meter and translating on the working platform to drive the measuring meter to translate.
As a further improvement of the above technical solution, the support member is provided with a marking area for marking the height of the counter member and the height of the positioning platform.
As a further improvement of the technical scheme, the bottom surface of the supporting piece is a reference surface, and the verticality of the positioning side of the pair of surface pieces is smaller than or equal to 0.01mm.
As a further improvement of the technical scheme, the flatness of the positioning platform is smaller than or equal to 0.01mm, and the flatness of the top surface of the counter piece is smaller than or equal to 0.01mm.
The utility model has the following beneficial effects:
when the measuring tool is used, the supporting piece is placed on a working platform such as a working table and the ground, the crankshaft to be measured is placed on the supporting piece according to the preset direction, so that the optical axis positioned below the crankshaft to be measured abuts against the positioning platform, the clamping piece is used for clamping the crankshaft to be measured on the supporting piece along the horizontal direction, the workpiece is prevented from shaking, the gauge head contact of the measuring tool contacts the top surface of the measuring tool and presses the gauge head by 0.2-0.3, the gauge head reading is set to zero, the measuring tool is translated, the gauge head contact contacts the preset cylindrical surface of the optical axis of the crankshaft to be measured, the difference value between the vertical distances of the far end points of the two preset cylindrical surfaces of the crankshaft to be measured and the vertical distance of the far end points of the two preset cylindrical surfaces of the standard crankshaft is obtained, the vertical distances of the far end points of the two preset cylindrical surfaces are respectively subtracted to obtain the axial center distance, the measuring tool reading can be converted into the difference value between the measured dimension and the standard dimension, the measuring tool reading is prevented from adopting the problem of low measuring efficiency of three-coordinate measurement, the structure is simple, the cost is low, the operation is easy, and the measuring efficiency is greatly improved.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The utility model will be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a front view of a standard crankshaft;
FIG. 2 is a side view of a standard crankshaft;
FIG. 3 is a front view of the preferred embodiment of the present utility model in use;
FIG. 4 is a top view of the preferred embodiment of the present utility model in use;
11. connecting part 12, optical axis 2, supporting piece 21, fixing cavity 22, positioning platform 23, protruding part 3, counter piece 4, clamping piece 41, knurled nut 42, screw 43, pressing plate
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 4, a preferred embodiment of the present utility model provides a shaft center distance measuring tool for detecting a shaft center distance dimension of two optical axes 12 of a crankshaft, the standard crankshaft shaft center distance of the present embodiment being 20±0.1mm, the measuring tool comprising:
the support piece 2 is placed on the working platform, the support piece 2 comprises a fixed cavity 21 and a positioning platform 22, the fixed cavity 21 is used for accommodating a connecting part 11 between two optical axes 12 of a crankshaft to be tested, and the positioning platform 22 is used for supporting the optical axis 12 of the crankshaft to be tested, which is positioned below;
the height distance difference from the top of the gauge 3 (F surface shown in fig. 3) to the positioning platform 22 of the gauge 3 is matched with the vertical distance of the distal end points of the preset cylindrical surfaces (C cylinder and D cylinder shown in fig. 2 in the embodiment) of the two optical axes 12 of the standard crankshaft;
a clamping piece 4, which is arranged on the supporting piece 2 and is used for clamping the crankshaft to be tested which is arranged on the supporting piece 2 along the horizontal direction;
a measuring gauge (not shown in the drawings) for measuring a difference in height between the top surface of the gauge 3 and the top end of the optical axis 12 located above; the measuring means are preferably used in the prior art.
When the measuring tool is used, the supporting piece 2 is placed on a working platform such as a working table and the ground, the crankshaft to be measured is placed on the supporting piece 2 according to the preset direction, so that the optical axis 12 positioned below the crankshaft to be measured is abutted against the positioning platform 22, the clamping piece 4 is used for clamping the crankshaft to be measured on the supporting piece 2 along the horizontal direction, the workpiece is prevented from shaking, the gauge head contact of the measuring piece contacts the top surface of the measuring piece 3 and presses the gauge head by 0.2-0.3, the gauge head reading is set to zero, the gauge head contact is translated to contact the preset cylindrical surfaces of the optical axis 12 of the crankshaft to be measured, the difference value between the vertical distances of the distal end points of the two preset cylindrical surfaces of the crankshaft to be measured and the vertical distances of the distal end points of the two preset cylindrical surfaces of the standard crankshaft is obtained, the radial distances of the two preset cylindrical surfaces are subtracted respectively, and the distance between the distal end points of the two preset cylindrical surfaces is the axial center distance, the measuring gauge reading can be converted into the difference value between the measured size and the standard size, the problem that the three-coordinate measuring efficiency is low is avoided, the structure is low, the cost is low, the operation is simple, and the measuring efficiency is greatly improved.
In this embodiment, a protruding portion 23 is formed on a side surface of the supporting member 2, the pair of members 3 is connected to the protruding portion 23 of the supporting member 2, a fixing cavity 21 is formed between the pair of members 3 and the protruding portion 23, and the clamping member 4 is used for pressing and fixing the connecting portion 11 of the crankshaft to be tested on the positioning side (M surface shown in fig. 3) of the pair of members 3 along the horizontal direction, so as to prevent the crankshaft to be tested from moving.
Further, the clamping piece 4 comprises a knurled nut 41 and a screw 42 connected with the knurled nut 41, the screw 42 is perpendicular to the positioning side of the pair of workpieces 3, the knurled nut 41 is used for rotating to drive the screw 42 to axially move so as to compress and fix the crankshaft to be tested on the positioning side of the pair of workpieces 3, the clamping piece 4 is provided with a threaded hole, the screw 42 is in threaded connection with the threaded hole, and the clamping and the dismounting of the crankshaft to be tested are realized by rotating the knurled nut 41 and axially moving the screw 42.
Further, the clamping piece 4 further comprises a pressing plate 43, the pressing plate 43 is arranged between the end parts of the crankshaft to be detected and the screw 42, so that the stress area of the crankshaft to be detected for clamping is increased, the workpiece is effectively limited from shaking, and the workpiece is prevented from being damaged.
Further, the pressing surface of the pressing plate 43 for contacting the crankshaft to be tested is provided with a protective layer, preferably a copper layer, to avoid damaging the workpiece.
In this embodiment, the supporting member 2 has a concave portion, the positioning platform 22 is a bottom surface of the concave portion, and the width of the concave portion is slightly larger than the diameter of the optical axis 12 of the crankshaft to be tested, so as to guide the crankshaft to be tested.
In this embodiment, the measuring tool further includes a magnetometer rest, configured to support the measuring device, and configured to translate on the working platform to further drive the measuring device to translate.
In this embodiment, the support 2 is provided with a marking area for marking the height H of the counter 3 and the height L of the positioning platform 22, so as to distinguish them and ensure matching with the crankshaft to be measured.
In this embodiment, the bottom surface (K surface shown in fig. 3) of the supporting member 2 is a reference surface, the verticality of the positioning side of the counter member 3 is less than or equal to 0.01mm, the flatness of the positioning platform 22 is less than or equal to 0.01mm, and the flatness of the top surface of the counter member 3 is less than or equal to 0.01mm.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A shaft center distance measuring tool for detecting a shaft center distance dimension of two optical axes (12) of a crankshaft to be measured, the measuring tool comprising:
the support piece (2) is placed on the working platform, the support piece (2) comprises a fixed cavity (21) and a positioning platform (22), the fixed cavity (21) is used for accommodating a connecting part (11) between two optical axes (12) of a crankshaft to be tested, and the positioning platform (22) is used for supporting the optical axis (12) of the crankshaft to be tested, which is positioned below;
the height distance difference between the top of the pair of gauge members (3) and the positioning platform (22) is matched with the vertical distance between the preset cylindrical far end points of the two optical axes (12) of the standard crankshaft;
a clamping piece (4) which is arranged on the supporting piece (2) and is used for clamping the crankshaft to be tested which is arranged on the supporting piece (2) along the horizontal direction;
and the measuring device is used for measuring the height difference between the top surface of the gauge (3) and the top end of the optical axis (12) above the crankshaft to be measured.
2. The shaft center distance measuring tool according to claim 1, wherein a protruding portion (23) is formed on a side surface of the supporting member (2), the pair of gauge members (3) are connected to the protruding portion (23) of the supporting member (2), the fixing cavity (21) is formed between the pair of gauge members (3) and the protruding portion (23), and the clamping piece (4) is used for pressing and fixing the connecting portion (11) of the crankshaft to be measured to the positioning side of the pair of gauge members (3) in the horizontal direction.
3. The shaft center distance measuring tool according to claim 2, wherein the clamping member (4) comprises a knurled nut (41) and a screw (42) connected with the knurled nut (41), the screw (42) is perpendicular to the positioning side of the counter member (3), and the knurled nut (41) is used for rotating and driving the screw (42) to axially move so as to press and fasten the crankshaft to be measured on the positioning side of the counter member (3).
4. A tool for measuring a shaft center distance according to claim 3, wherein the clamping member (4) further comprises a pressing plate (43), and the pressing plate (43) is arranged between the crankshaft to be measured and the end portion of the screw (42) to further increase the stress area of the clamping of the crankshaft to be measured.
5. The tool according to claim 4, wherein the pressing surface of the pressing plate (43) for contacting the crankshaft to be measured is provided with a protective layer.
6. The shaft center distance measuring tool according to claim 1, wherein the supporting member (2) is provided with a concave portion, the positioning platform (22) is a bottom surface of the concave portion, and the width of the concave portion is larger than the diameter of an optical axis (12) of the crankshaft to be measured.
7. The tool of claim 1, further comprising a frame for supporting the measuring gauge and for translating on a work platform to translate the measuring gauge.
8. The tool according to claim 1, characterized in that the support (2) is provided with identification zones for identifying the height of the counter (3) and the height of the positioning platform (22).
9. The tool according to claim 2, wherein the bottom surface of the support member (2) is a reference surface, and the perpendicularity of the positioning side of the gauge member (3) is less than or equal to 0.01mm.
10. The tool according to any one of claims 1 to 9, wherein the flatness of the positioning platform (22) is less than or equal to 0.01mm and the flatness of the top surface of the counter-piece (3) is less than or equal to 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179456.3U CN219301564U (en) | 2023-02-10 | 2023-02-10 | Axle center distance measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179456.3U CN219301564U (en) | 2023-02-10 | 2023-02-10 | Axle center distance measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219301564U true CN219301564U (en) | 2023-07-04 |
Family
ID=86981378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320179456.3U Active CN219301564U (en) | 2023-02-10 | 2023-02-10 | Axle center distance measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219301564U (en) |
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2023
- 2023-02-10 CN CN202320179456.3U patent/CN219301564U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 412000 No. 1018, Hangfei Avenue, Lusong District, Zhuzhou City, Hunan Province Patentee after: Hunan Xingtu Aerospace and Spacecraft Manufacturing Co.,Ltd. Address before: 412002 No. 1018, Hangfei Avenue, Lusong District, Zhuzhou City, Hunan Province Patentee before: AVIC POWER ZHUZHOU AVIATION PARTS MANUFACTURING Co.,Ltd. |
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| CP03 | Change of name, title or address |