Measuring instrument for detecting circular arc degree of outer ring of gearbox shell

Abstract

The utility model relates to a measuring instrument for detecting the arc degree of the outer ring of a gearbox housing, which comprises a detection platform, the detection platform is provided with a positioning shaft, the gearbox housing is cylindrical, the center of the gearbox housing is provided with a central hole, the gearbox housing is sleeved on the positioning shaft through the central hole, and the detection platform is also provided with a detection shaft mechanism. One end of the detection shaft mechanism is fixedly connected with a detection meter; a rocker mechanism is movably arranged on the side surface of one end, close to the detection meter, of the detection platform; the detection device is reasonable in structural design, simple and rapid to operate, high in working efficiency and capable of guaranteeing detection precision.

Description

Technical Field

[0001] The utility model relates to the field of automobile gearbox parts detection, in particular to a measuring instrument for detecting the arc of an outer ring of a gearbox housing. Background Art

[0002] In the production of automobile gearboxes, the outer shell of the automobile gearbox will produce certain position deviations during manufacturing, affecting product quality. Therefore, the outer shell of the automobile gearbox needs to be tested for radian to ensure the normal operation of the gearbox. Currently, there is no dedicated testing instrument for the radian of the outer ring of the existing gearbox housing. Only a three-coordinate measuring machine can be used. The three-coordinate measuring machine has low detection efficiency due to its complex operation. Alternatively, manual inspection with a dial indicator is used, but the tolerance is large and the inspection quality cannot be guaranteed. Utility Model Content

[0003] Aiming at the technical problems of low detection efficiency and lack of special detection instruments when detecting the outer ring radian of the outer shell of automobile gearbox, a measuring instrument for detecting the outer ring radian of gearbox housing is proposed.

[0004] The technical solution of the utility model is: a measuring instrument for detecting the radian of the outer ring of a gearbox housing, comprising a detection platform, the detection platform is provided with a positioning shaft, the gearbox housing is cylindrical, a center hole is provided in the center, the gearbox housing is rotatably sleeved on the positioning shaft through the center hole, a detection shaft mechanism is further provided on the detection platform, one end of the detection shaft mechanism is fixedly connected to a detection table, and a rocker mechanism is movably provided on the side of the detection platform near one end of the detection table.

[0005] Preferably, the detection shaft mechanism includes a shell and a detection shaft. The interior of the shell is a hollow structure. An opening is provided at one end of the shell close to the positioning shaft, and the detection shaft is inserted into the shell through the opening.

[0006] Preferably, a detection probe is provided at one end of the detection shaft away from the housing, and the outermost end of the detection probe is an arc structure.

[0007] Preferably, the curvature of the detection probe is consistent with the curvature of the outer ring of a standard gearbox housing.

[0008] Preferably, the end of the detection shaft away from the detection probe is connected to the detection shaft connecting part, the detection shaft connecting part is sleeved with a spring, one end of the spring is connected to the detection shaft, and the end away from the detection shaft is connected to the inner wall of the shell.

[0009] Preferably, the detection gauge is arranged inside an end of the housing away from the positioning axis.

[0010] Preferably, the detection shaft connection portion is a connecting section away from the spring, the connecting section is serrated, a detection table connecting gear is provided at the center of the detection table, and the connecting section and the detection table connecting gear are meshed with each other.

[0011] Preferably, the center of the detection meter connecting gear is connected to the detection meter pointer, and the detection meter pointer points to the detection meter dial.

[0012] Preferably, the rocker mechanism includes a rocker handle, one end of the rocker handle is vertically connected to a connecting rod, an end of the connecting rod away from the rocker handle is fixedly connected to the center of a transmission gear, and the transmission gear is rotatably connected to the side of the detection platform.

[0013] Preferably, the housing is provided with a sliding connection portion at the bottom at the detection table position, the outermost side of the sliding connection portion is serrated, and the sliding connection portion is meshed with the transmission gear.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a measuring instrument for detecting the radian of the outer ring of a gearbox housing; the detection device has reasonable structural design, simple and fast operation, high working efficiency, and can ensure detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the utility model's gearbox housing outer ring arc measuring instrument;

[0016] Figure 2 This is a front view of the utility model of the transmission housing outer ring arc measuring instrument.

[0017] In the figures, the component names corresponding to the reference numerals are as follows:

[0018] 1. Gearbox housing; 11. Center hole; 2. Detection platform; 21. Positioning shaft; 3. Detection shaft mechanism; 31. Housing; 311. Sliding connection; 32. Detection shaft; 321. Detection probe; 33. Detection shaft connection; 331. Spring; 332. Connecting section; 4. Detection gauge; 41. Detection gauge connecting gear; 42. Detection gauge pointer; 43. Detection gauge dial; 5. Rocker mechanism; 51. Rocker handle; 52. Connecting rod; 53. Transmission gear. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0020] refer to Figure 1 As shown, the utility model provides a measuring instrument for detecting the radian of the outer ring of a gearbox housing, comprising a detection platform 2, the detection platform 2 being provided with a positioning shaft 21, the gearbox housing 1 being a hollow cylinder, with a center hole 11 being provided at the center of the top surface, the gearbox housing 1 being rotatably sleeved on the positioning shaft 21 through the center hole 11, and thus being placed on the detection platform 2;

[0021] The testing platform 2 is also provided with a testing shaft mechanism 3, one end of which is fixedly connected to a testing gauge 4. A rocker mechanism 5 is movably provided on the side of the testing platform 2 near the testing gauge 4. The rocker mechanism 5 pushes the testing shaft mechanism 3 close to the gearbox housing 1 to perform testing. The testing gauge 4 displays the test value, thereby judging whether the radian of the outer ring of the gearbox housing 1 is qualified.

[0022] Specifically, the detection shaft mechanism 3 includes a housing 31. The interior of the housing 31 is a hollow structure. An opening is provided at one end of the housing 31 close to the positioning shaft 21. The detection shaft 32 is passed through the housing 31 through the opening. A detection probe 321 is provided at the end of the detection shaft 32 away from the housing 31. The outermost end of the detection probe 321 is an arc structure, and the curvature is consistent with the curvature of the outer ring of the standard gearbox housing 1, thereby detecting whether the curvature of each gearbox housing 1 is qualified.

[0023] The end of the detection shaft 32 away from the detection probe 321 is connected to the detection shaft connecting portion 33. The detection shaft connecting portion 33 is provided with a spring 331. One end of the spring 331 is connected to the detection shaft 32, and the other end away from the detection shaft 32 is connected to the inner wall of the housing 31. The spring provides a rebound force to reset the detection shaft 32.

[0024] A section of the detection shaft connecting portion 33 away from the spring 331 is a connecting section 332, which is serrated. The detection gauge 4 is disposed inside the end of the housing 1 away from the positioning shaft 21. A detection gauge connecting gear 41 is disposed at the center of the detection gauge 4. The connecting section 332 and the detection gauge connecting gear 41 are engaged with each other. The center of the detection gauge connecting gear 41 is connected to a detection gauge pointer 42, which points to a detection gauge dial 43. The detection gauge dial 43 displays the specific value of the outer ring curvature of the gearbox housing 1 being tested.

[0025] Specifically, refer to Figure 2 As shown, the rocker mechanism 5 includes a rocker handle 51, one end of the rocker handle 51 is vertically connected to the connecting rod 52, and the end of the connecting rod 52 away from the rocker handle 51 is fixedly connected to the center of the transmission gear 53, and the transmission gear 53 is rotatably connected to the side of the detection platform 2. The housing 31 is provided with a sliding connection part 311 at the bottom of the detection table 4. The outermost side of the sliding connection part 311 is serrated. The sliding connection part 311 and the transmission gear 53 are engaged with each other, thereby pushing the detection probe 321 of the entire detection shaft mechanism 3 to contact the outer ring of the gearbox housing 1, and then rotating the gearbox housing 1 to make the outer ring of the gearbox housing 1 uniformly detected, and judging whether it is qualified by the value of the detection table dial 43 pointed by the detection table pointer 42, thereby completing the detection;

[0026] The working principle and beneficial effects are as follows: by shaking the handle 51 of the rocker mechanism 5, the entire detection shaft mechanism 3 is driven close to the gearbox housing 1, so that the detection probe 321 contacts the outer ring of the gearbox housing 1, and then the gearbox housing 1 is rotated to uniformly detect the outer ring of the gearbox housing 1. By pointing the detection meter pointer 42 to the value of the detection meter dial 43, it is determined whether the arc degree of the outer ring of the gearbox housing 1 is qualified; the detection device has a reasonable structural design, is simple and fast to operate, has high working efficiency, and can ensure detection accuracy;

[0027] It should be noted that the orientations or positional relationships indicated by the above-mentioned terms "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. "Multiple" means two or more. "Installation", "connected", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be considered as the scope of protection of the present invention. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the present invention, which are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A measuring instrument for detecting the arc of the outer ring of a gearbox housing, characterized in that: The invention comprises a detection platform (2), the detection platform (2) is provided with a positioning shaft (21), a gearbox housing (1) is cylindrical, a center hole (11) is provided at the center, the gearbox housing (1) is rotatably sleeved on the positioning shaft (21) through the center hole (11), a detection shaft mechanism (3) is further provided on the detection platform (2), one end of the detection shaft mechanism (3) is fixedly connected to a detection meter (4), and a rocker mechanism (5) is movably provided on the side of the detection platform (2) near one end of the detection meter (4).

2. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 1, characterized in that: The detection shaft mechanism (3) comprises a housing (31) and a detection shaft (32). The interior of the housing (31) is a hollow structure. An opening is provided at one end of the housing (31) close to the positioning shaft (21). The detection shaft (32) is inserted into the housing (31) through the opening.

3. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 2, characterized in that: A detection probe (321) is provided at one end of the detection shaft (32) away from the housing (31), and the outermost end of the detection probe (321) is an arc structure.

4. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 3, characterized in that: The curvature of the detection probe (321) is consistent with the curvature of the outer ring of a standard gearbox housing (1).

5. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 2, characterized in that: One end of the detection shaft (32) away from the detection probe (321) is connected to the detection shaft connecting portion (33), and the detection shaft connecting portion (33) is sleeved with a spring (331). One end of the spring (331) is connected to the detection shaft (32), and the other end away from the detection shaft (32) is connected to the inner wall of the housing (31).

6. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 5, characterized in that: The detection meter (4) is arranged inside an end of the housing (31) away from the positioning shaft (21).

7. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 6, characterized in that: A section of the detection shaft connecting portion (33) away from the spring (331) is a connecting section (332), the connecting section (332) is sawtooth-shaped, a detection meter connecting gear (41) is provided at the center of the detection meter (4), and the connecting section (332) and the detection meter connecting gear (41) are meshed with each other.

8. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 7, characterized in that: The center of the detection meter connecting gear (41) is connected to the detection meter pointer (42), and the detection meter pointer (42) points to the detection meter scale (43).

9. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 1, characterized in that: The rocker mechanism (5) comprises a rocker handle (51), one end of which is vertically connected to a connecting rod (52), an end of which, away from the rocker handle (51), is fixedly connected to the center of a transmission gear (53), and the transmission gear (53) is rotatably connected to the side of the detection platform (2).

10. The measuring instrument for detecting the radian of the outer ring of the gearbox housing according to claim 7, characterized in that: The housing (31) is provided with a sliding connection portion (311) at the bottom of the detection gauge (4). The outermost side of the sliding connection portion (311) is sawtooth-shaped. The sliding connection portion (311) and the transmission gear (53) are meshed with each other.

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