Star-shaped sleeve spherical surface radian testing fixture

Abstract

The utility model discloses a detection tool for the spherical radian of a starlike sleeve, and relates to the technical field of starlike sleeve detection equipment, the detection tool comprises a detection bench and a starlike sleeve positioning column, the starlike sleeve positioning column is fixedly installed at the top of the detection bench, the outer side of the detection bench is provided with a positioning assembly and a detection member, and the positioning assembly is located at the top of the starlike sleeve positioning column. The positioning assembly comprises a butt joint piece, the butt joint piece comprises a main sleeve column, the outer side of the main sleeve column is movably connected with a threaded frame, and the threaded frame is in threaded connection with the main sleeve column through a threaded shaft; outer arc plates are arranged on the outer side of the main sleeve column at equal intervals and hinged to the outer side of the threaded frame through connecting rods. According to the detection tool for the spherical radian of the starlike sleeve provided by the utility model, the included angle between the connecting rods hinged to the threaded frame is gradually increased, and the outer arc plate is expanded towards the outer side of the starlike sleeve positioning column by taking the main sleeve column as the center, so that the detection tool meets the sleeving and limiting requirements of starlike sleeves with different sizes while the starlike sleeve positioning column does not need to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of star-shaped sleeve detection equipment, in particular to a star-shaped sleeve spherical surface radian detection tool. Background Art

[0002] The fixed end of the car's drive shaft is usually assembled from several components to connect the half shaft to the vehicle's transmission system. The star sleeve is one of the core components of the drive shaft. It is located inside the bell housing and is connected to the vehicle's transmission system through gears. The star sleeve contains multiple gears that are used to transmit the engine's power to the wheels.

[0003] Before using the star sleeve, the outer spherical surface of the star sleeve needs to be inspected for curvature. The existing Chinese patent with authorization announcement number CN219284191U discloses a star sleeve spherical surface curvature inspection tool. Through the rotating shaft and the connecting piece, the probe of the micrometer can slide on the outer spherical surface of the star sleeve and always point to the center of the star sleeve. When measuring, you only need to rotate the rotating shaft to make the probe slide along the outer spherical surface of the star sleeve, and observe the range of changes in the micrometer reading to determine whether it is qualified. The measurement is simple, the detection is stable, and it is not easy to make mistakes, which greatly reduces the detection cost.

[0004] In the existing method of detecting the curvature of the outer spherical surface of a star sleeve, the star sleeve is usually connected to the star sleeve positioning column, and the outer diameter of the star sleeve positioning column is adapted to the inner diameter of the star sleeve. When detecting star sleeves of different sizes, the positioning column of the corresponding gear needs to be replaced multiple times, which easily affects the accuracy of the positioning column and causes errors in the detection results. Utility Model Content

[0005] In view of the problem that when testing star sleeves of different sizes, the positioning columns of the corresponding gears need to be replaced multiple times, which easily affects the accuracy of the positioning columns and causes errors in the test results, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a star-shaped sleeve spherical curvature inspection fixture, which aims to: by arranging multiple sets of expandable outer arc plates on the outer side of the star-shaped sleeve positioning column, it is not necessary to replace the star-shaped sleeve positioning column while also adapting to the socket limit requirements of star sleeves of different sizes.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a star-shaped sleeve spherical curvature inspection tool, which includes a detection platform and a star-shaped sleeve positioning column, the star-shaped sleeve positioning column is fixedly installed on the top of the detection platform, and a positioning component and a detection piece are arranged on the outside of the detection platform, and the positioning component is located on the top of the star-shaped sleeve positioning column;

[0008] The positioning assembly includes a docking piece, the docking piece includes a main sleeve column, the outer side of the main sleeve column is movably connected with a threaded frame, and the threaded frame is threadedly connected to the main sleeve column through a threaded shaft;

[0009] Outer arc plates are arranged equidistantly on the outside of the main sleeve column. The outer arc plates are hinged to the outside of the threaded frame through connecting rods, and the outer arc plates are distributed in a ring array around the main sleeve column. The outer arc plates are all located on the top of the star sleeve positioning column.

[0010] As a preferred solution of the star-shaped sleeve spherical curvature gauge of the utility model, a shield is fixedly installed on the outer side of the main sleeve column, the main sleeve column runs through the main sleeve column as a whole, and the outer arc plate is movably connected to the outer side of the star-shaped sleeve positioning column through the shield.

[0011] As a preferred solution of the star-shaped sleeve spherical curvature gauge of the utility model, a positioning shaft is fixedly installed at the bottom of the main sleeve column, the main sleeve column is connected to the star-shaped sleeve positioning column through the positioning shaft, and one end of the positioning shaft is located in the star-shaped sleeve positioning column.

[0012] As a preferred solution of the star-shaped spherical curvature inspection fixture of the utility model, the positioning assembly also includes a limit member, the limit member includes a column, the column is fixedly installed on the top of the inspection platform, a synchronization plate is installed on the outside of the column, and the other end of the synchronization plate is connected to the top of the main sleeve column.

[0013] As a preferred solution of the star-shaped sleeve spherical curvature gauge of the utility model, a press-fit sleeve is movably connected to the top of the synchronization plate and the outside of the column, and a locking pad is fixedly installed on the top of the press-fit sleeve.

[0014] As a preferred solution of the star-shaped sleeve spherical surface curvature gauge of the utility model, a spring is arranged on the top of the locking pad, an outer cylinder is also arranged on the outer side of the locking pad, and the spring is located on the inner side of the outer cylinder.

[0015] As a preferred solution of the star-shaped sleeve spherical curvature testing fixture of the utility model, the testing piece includes a rotating shaft, the rotating shaft is arranged on the top of the testing platform, a rotating arm is arranged on the outer side of the rotating shaft, a side rod is arranged on the other end of the rotating arm, the angle between the rotating arm and the side rod is ninety degrees, and a micrometer is arranged on the side rod.

[0016] Beneficial effects of the utility model:

[0017] 1. The angle between the connecting rods hinged by the threaded frame gradually increases, and the outer arc plate expands to the outside of the star sleeve positioning column with the main sleeve column as the center, so as to adapt to the sleeve limit requirements of star sleeves of different sizes without replacing the star sleeve positioning column.

[0018] 2. The locking pad is pushed to move in the slide groove in the outer cylinder through the extended spring, and the synchronous plate is squeezed along the axial direction of the column through the press-fit sleeve. The main sleeve column connected to the other end of the synchronous plate is kept parallel to the column and docked with the star sleeve positioning column, thereby ensuring the accuracy of the star sleeve detection and positioning, and it is not easy to loosen and fall off.

[0019] 3. By rotating the shaft, the probe of the micrometer is pressed against the outer spherical surface of the star sleeve, and the probe slides from top to bottom along the curvature of the outer spherical surface. By observing whether the change in the micrometer reading is within a reasonable range, it can be determined whether the curvature inspection of the outer spherical surface of the star sleeve is qualified, thereby completing the curvature inspection of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the star-shaped sleeve spherical surface curvature gauge.

[0022] Figure 2 The utility model is a schematic diagram of the positioning component structure of the star-shaped spherical arc gauge.

[0023] Figure 3 The utility model is a schematic cross-sectional structure diagram of the positioning component of the star-shaped sleeve spherical arc gauge.

[0024] Figure 4 The utility model is a schematic diagram of the related structure of the outer arc plate and the main sleeve column of the star-shaped sleeve spherical surface arc inspection fixture.

[0025] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of the limiter of the star-shaped sleeve spherical arc inspection fixture.

[0026] Figure 6 The utility model is a schematic diagram of the structure of the detection part of the star-shaped sleeve spherical surface curvature detection fixture.

[0027] Description of reference numerals:

[0028] 1. Inspection table; 2. Star sleeve positioning column; 3. Positioning assembly; 31. Docking piece; 311. Main sleeve column; 312. Threaded frame; 313. Threaded shaft; 314. Outer arc plate; 315. Connecting rod; 316. Protective cover; 317. Positioning shaft; 32. Limiting piece; 321. Column; 322. Synchronous plate; 323. Press-fit sleeve; 324. Locking pad; 325. Spring; 326. Outer cylinder; 4. Inspection piece; 41. Rotating shaft; 42. Rotating arm; 43. Side rod; 44. Micrometer. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Reference Figure 1-6 , which is the first embodiment of the utility model, provides a star-shaped sleeve spherical curvature inspection tool, the star-shaped sleeve spherical curvature inspection tool comprises a detection platform 1 and a star-shaped sleeve positioning column 2, the star-shaped sleeve positioning column 2 is fixedly installed on the top of the detection platform 1, the outer side of the detection platform 1 is provided with a positioning component 3 and a detection component 4, the positioning component 3 is located at the top of the star-shaped sleeve positioning column 2, the positioning component 3 comprises a docking member 31, the docking member 31 comprises a main sleeve column 311, the outer side of the main sleeve column 311 is movably connected with a threaded frame 312, the threaded frame 312 is threadedly connected to the main sleeve column 311 through a threaded shaft 313, the outer side of the main sleeve column 311 is equidistantly arranged with outer arc plates 314, the outer arc plates 314 are all hinged to the outer side of the threaded frame 312 through a connecting rod 315, and the outer arc plates 314 are distributed in a ring array around the main sleeve column 311, and the outer arc plates 314 are all located at the star-shaped sleeve. The top of the sleeve positioning column 2 and the outer side of the star sleeve positioning column 2 are fixedly installed with a tray spaced from the detection table 1, so that the star sleeve can be suspended and sleeved on the top of the detection table 1. The diameter of the main sleeve column 311 is smaller than the diameter between the star sleeve positioning columns 2, and is connected to the end of the star sleeve positioning column 2 away from the detection table 1 by plugging. The threaded frame 312 can move axially along the main sleeve column 311 in the groove opened in the main sleeve column 311. One end of the threaded shaft 313 located in the main sleeve column 311 passes through the entire threaded frame 312. The outer arc plate 314 is hinged to the outer side of the threaded frame 312 through the connecting rod 315, and when the height of the threaded frame 312 is lowered, the outer arc plate 314 expands to the outside of the star sleeve positioning column 2, thereby adapting to the sleeve limit requirements of star sleeves of different sizes without the need to replace the star sleeve positioning column 2.

[0032] A shield 316 is fixedly installed on the outside of the main sleeve column 311, and the main sleeve column 311 runs through the main sleeve column 311 as a whole, and the outer arc plate 314 is movably connected to the outside of the star sleeve positioning column 2 through the shield 316. The shield 316 can be plugged into the star sleeve positioning column 2 through the main sleeve column 311, and the outer arc plate 314 can move in the groove in the shield 316, so that the outer arc plate 314 is not easily offset during the movement.

[0033] A positioning shaft 317 is fixedly installed at the bottom of the main sleeve column 311. The main sleeve column 311 is connected to the star sleeve positioning column 2 through the positioning shaft 317. One end of the positioning shaft 317 is located in the star sleeve positioning column 2. The positioning shaft 317 can be connected in the hole opened in the star sleeve positioning column 2 to complete the docking, and the main sleeve column 311 can rotate on the star sleeve positioning column 2.

[0034] The positioning assembly 3 also includes a limit member 32, which includes a column 321, which is fixedly installed on the top of the detection platform 1. A synchronization plate 322 is installed on the outer side of the column 321, and the other end of the synchronization plate 322 is connected to the top of the main sleeve column 311. The synchronization plate 322 can rotate around the column 321 and make the column 321 parallel to the main sleeve column 311, so as to ensure the accuracy of docking.

[0035] A pressing sleeve 323 is movably connected to the top of the synchronous plate 322 and the outer side of the column 321, and a locking pad 324 is fixedly installed on the top of the pressing sleeve 323. The column 321 passes through the locking pad 324 as a whole. The pressing sleeve 323 can squeeze the synchronous plate 322 through the locking pad 324, thereby ensuring the stability of the connection between the main sleeve column 311 connected to the synchronous plate 322 and the star sleeve positioning column 2.

[0036] A spring 325 is provided on the top of the locking pad 324, and an outer tube 326 is also provided on the outer side of the locking pad 324. The spring 325 is located on the inner side of the outer tube 326, and the locking pad 324 protrudes from the surface of the outer tube 326. When the spring 325 is in the extended state, it pushes the locking pad 324 to squeeze the pressing sleeve 323. The locking pad 324 can move in the slide groove opened on the outer tube 326, so as to manually change the extended state of the spring 325.

[0037] The detection member 4 includes a rotating shaft 41, which is arranged on the top of the detection platform 1. A rotating arm 42 is arranged on the outer side of the rotating shaft 41. A side rod 43 is arranged on the other end of the rotating arm 42. The angle between the rotating arm 42 and the side rod 43 is ninety degrees. A micrometer 44 is arranged on the side rod 43. The detection probe of the micrometer 44 is located on the outer side of the star sleeve positioning column 2. When the rotating shaft 41 rotates, the connected rotating arm 42 and the side rod 43 will drive the micrometer 44 to move along the contour of the spherical surface of the star sleeve on the star sleeve positioning column 2, thereby obtaining arc surface data.

[0038] When in use, the star sleeve is suspended on the top of the test bench 1 by the star sleeve positioning column 2, and the axial centers of the star sleeve and the star sleeve positioning column 2 are in the same straight line, and the pressing sleeve 323 is rotated to make the threaded frame 312 connected with the thread move in the groove in the main sleeve column 311 along the axial direction of the main sleeve column 311, and in this process, the angle between the connecting rod 315 hinged by the threaded frame 312 gradually increases, and the outer arc plate 314 is centered on the main sleeve column 311 and expands to the outside of the star sleeve positioning column 2, so that it does not need to replace the star sleeve positioning column 2, and adapts to the socket limit requirements of star sleeves of different sizes, and realizes the combination between the outer arc plate 314 and the positioning shaft 317 and the star sleeve positioning column 2 through the grooves in the shield 316. To ensure the accuracy during positioning, the locking pad 324 is pushed to move in the slide groove in the outer cylinder 326 through the extended spring 325, and the synchronous plate 322 is squeezed along the axial direction of the column 321 through the pressing sleeve 323. The main sleeve column 311 connected to the other end of the synchronous plate 322 is kept parallel to the column 321 and docked with the star sleeve positioning column 2, thereby ensuring the accuracy of the star sleeve detection and positioning, and it is not easy to loosen and fall off. During the detection, the probe of the micrometer 44 is pressed against the outer spherical surface of the star sleeve by rotating the rotating shaft 41, so that the probe slides from top to bottom along the curvature of the outer spherical surface, and the change in the indication of the micrometer 44 is observed to be within a reasonable range. It can be judged whether the curvature inspection of the outer spherical surface of the star sleeve is qualified, thereby completing the curvature inspection of the device.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A star-shaped sleeve spherical curvature inspection tool, comprising a testing platform (1) and a star-shaped sleeve positioning column (2), wherein the star-shaped sleeve positioning column (2) is fixedly mounted on the top of the testing platform (1), characterized in that: A positioning component (3) and a detection member (4) are arranged on the outside of the detection platform (1), and the positioning component (3) is located on the top of the star-shaped sleeve positioning column (2); The positioning assembly (3) comprises a docking piece (31), the docking piece (31) comprises a main sleeve column (311), the outer side of the main sleeve column (311) is movably connected with a threaded frame (312), and the threaded frame (312) is threadedly connected to the main sleeve column (311) via a threaded shaft (313); Outer arc plates (314) are arranged at equal intervals on the outside of the main sleeve column (311); the outer arc plates (314) are hinged to the outside of the threaded frame (312) through connecting rods (315); and the outer arc plates (314) are distributed in a ring array around the main sleeve column (311); and the outer arc plates (314) are located on the top of the star-shaped sleeve positioning column (2).

2. A star-shaped spherical surface radian gauge according to claim 1, characterized in that: A shield (316) is fixedly mounted on the outer side of the main sleeve column (311), the main sleeve column (311) penetrates the entire main sleeve column (311), and the outer arc plate (314) is movably connected to the outer side of the star sleeve positioning column (2) through the shield (316).

3. A star-shaped spherical surface radian gauge according to claim 2, characterized in that: A positioning shaft (317) is fixedly mounted on the bottom of the main sleeve column (311), and the main sleeve column (311) is connected to the star sleeve positioning column (2) via the positioning shaft (317), and one end of the positioning shaft (317) is located in the star sleeve positioning column (2).

4. A star-shaped spherical surface radian inspection fixture according to claim 3, characterized in that: The positioning assembly (3) further comprises a limiting member (32), wherein the limiting member (32) comprises a column (321), wherein the column (321) is fixedly mounted on the top of the detection platform (1), and a synchronization plate (322) is mounted on the outer side of the column (321), and the other end of the synchronization plate (322) is connected to the top of the main sleeve column (311).

5. A star-shaped spherical surface radian inspection tool according to claim 4, characterized in that: A pressing sleeve (323) is movably connected to the top of the synchronous plate (322) and the outer side of the column (321), and a locking pad (324) is fixedly installed on the top of the pressing sleeve (323).

6. A star-shaped spherical surface radian inspection tool according to claim 5, characterized in that: A spring (325) is arranged on the top of the locking pad (324), an outer tube (326) is also arranged on the outer side of the locking pad (324), and the spring (325) is located on the inner side of the outer tube (326).

7. The star-shaped spherical surface radian inspection fixture according to claim 1, characterized in that: The detection member (4) comprises a rotating shaft (41), the rotating shaft (41) is arranged on the top of the detection platform (1), a rotating arm (42) is arranged on the outer side of the rotating shaft (41), a side rod (43) is arranged at the other end of the rotating arm (42), the angle between the rotating arm (42) and the side rod (43) is ninety degrees, and a micrometer (44) is arranged on the side rod (43).

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