CN212030369U - Automobile generator end cover positioning hole position checking fixture - Google Patents
Automobile generator end cover positioning hole position checking fixture Download PDFInfo
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- CN212030369U CN212030369U CN202020507396.XU CN202020507396U CN212030369U CN 212030369 U CN212030369 U CN 212030369U CN 202020507396 U CN202020507396 U CN 202020507396U CN 212030369 U CN212030369 U CN 212030369U
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- end cover
- bottom plate
- positioning hole
- automobile generator
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Abstract
The utility model relates to the technical field of generators, in particular to an inspection tool for the position of a positioning hole of an end cover of an automobile generator, which comprises a bottom plate and at least two positioning pins arranged on the bottom plate, wherein the bottom plate is also provided with at least two positioning columns, and the position arrangement of the positioning pins is matched with the position of the positioning holes on a standard automobile engine end cover; the outer diameter of the positioning pin is the same as the diameter of the positioning hole in the end cover of the standard automobile engine. The inspection device can quickly detect whether the positioning hole of the end cover of the automobile generator has a deviation phenomenon or not in a production workshop environment, and avoids the phenomenon that the time and labor are wasted in back-and-forth conveying to influence the production efficiency.
Description
Technical Field
The utility model relates to a generator technical field especially relates to an utensil is examined to automobile power generation machine end cover.
Background
The generator end cover is one of important parts of an automobile generator, and the processing of the positioning hole of the generator end cover is an important process in the manufacturing process of the generator end cover, if in the processing process, the positioning hole can cause the problem that the whole generator end cover cannot be correctly installed when the positioning hole is deviated, so that the phenomenon of scrapping and failure of the generator end cover occurs, and the production progress of the automobile is slowed.
At present, the position of a positioning hole of an end cover of an automobile generator is inspected by three-coordinate positioning, and an used three-coordinate instrument has strict requirements on the environment, needs to detect in the environment with constant temperature and humidity and needs to separately set a detection place, the end cover of the generator needs to be sent to the detection place to detect after being produced, needs to be transported back and forth, and seriously slows down the production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem, provide an utensil is examined in inspection of automobile power generation machine end cover locating hole position, examine can detect out automobile power generation machine end cover locating hole fast under the workshop environment and whether have the off normal phenomenon, avoided making a round trip to transport the phenomenon that wastes time and energy and influence production efficiency.
A checking fixture for checking the position of a positioning hole of an end cover of an automobile generator comprises a bottom plate and at least two positioning pins arranged on the bottom plate, wherein the bottom plate is also provided with at least two positioning columns; the position of the positioning pin is matched with the position of a positioning hole on a standard automobile engine end cover; the outer diameter of the positioning pin is the same as the diameter of the positioning hole in the end cover of the standard automobile engine.
Determining the outer diameter of the positioning pin and the position of the positioning pin on the bottom plate by measuring the position and the aperture of the positioning hole on the end cover of the automobile engine which passes the detection and taking the position and the aperture as the standard; through the locating hole cooperation on locating pin and the automobile power generation machine end cover, observe two locating pins and can both pass through the locating hole, the whole automobile power generation machine end cover is propped up to the reference column simultaneously, and it is accurate whether to confirm the locating hole position, should examine the utensil and can use convenient and fast in general workshop.
Preferably, the height of the positioning column higher than the bottom plate is smaller than the height of the positioning pin higher than the bottom plate.
By adopting the technical scheme, when the end cover of the generator is supported by the positioning column, the positioning pin can pass through the positioning hole, and the success of self-checking is ensured.
Preferably, the highest point of each positioning column, which is higher than the end face of the bottom plate, is located on the same horizontal plane.
Through adopting above-mentioned technical scheme, prop up whole automobile power generation machine end cover by the reference column after the locating pin passes through the locating hole, the setting of the same horizontal plane in support column upper end can observe whether automobile power generation machine end cover is level when detecting to detect whether the locating hole position meets the requirements.
Preferably, the end face of each positioning column, which is higher than the bottom plate, is a plane.
When the surface of the generator end cover corresponding to the positioning column is not a plane, the end face of the positioning column, which is higher than the bottom plate, can also be not a plane but a surface matched with the corresponding position shape of the engine end cover.
Preferably, the central position of the bottom plate is provided with a through hole.
Because the end cover of the automobile generator is in an irregular shape, when the support pillar supports the whole end cover, a section of bulge is found at the lower end of the end cover, and the bulge enters the through hole instead of directly contacting the bottom plate in a mode of forming the through hole in the center of the bottom plate, so that the support pillar can contact and support the end cover of the automobile generator; meanwhile, the whole mass of the bottom plate is reduced, and the bottom plate is convenient to take.
Preferably, the positioning pin is in interference fit with the bottom plate, and the positioning column is in interference fit with the bottom plate.
Through adopting above-mentioned technical scheme, guarantee that locating pin and reference column can fix on the bottom plate, prevent to produce not hard up influence measurement accuracy.
Preferably, the number of the positioning pins is two. In order to facilitate processing and ensure the appearance, generally, two positioning holes are arranged on the engine end cover, and the number of the positioning pins corresponding to the two positioning holes is also two.
Preferably, the bottom plate and the positioning pin are provided with annular reinforcing columns, and the inner diameter of each annular reinforcing column is matched with the outer diameter of the positioning pin.
Through adopting above-mentioned technical scheme, through setting up the reinforcement post, increase locating pin intensity reduces the locating pin and takes place skew or the deformation's of bending possibility.
Preferably, the number of the positioning columns is four, and the four positioning columns are arranged on the bottom plate at intervals.
By adopting the technical scheme, the stability of the end cover of the automobile generator when being supported is improved and the end cover of the automobile generator is prevented from deviating in a mode that the four ends are provided with the supporting positioning columns.
Preferably, the lower surface of the bottom plate is smooth and has no protrusions.
Because whether the end cover of the automobile generator is in a horizontal state or not needs to be checked during detection, the technical scheme is adopted, and the small bulge below the bottom plate is prevented from inclining the whole device on the horizontal plane.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the manufacturing is convenient, the design is light and handy portable, can detect out whether automobile power generation machine end cover locating hole has the off normal phenomenon fast under the workshop environment, and measuring effect is excellent, has saved the time of running back and forth between workshop and measuring room when traditional measurement simultaneously.
Drawings
Fig. 1 is a top view of the present invention;
fig. 2 is an isometric view of the present invention;
FIG. 3 is a front view of the present invention during measurement;
fig. 4 is an isometric view of the present invention during measurement.
Wherein, the device comprises a base plate 1, a through hole 1.1, a positioning pin 2, a reinforcing column 2.1 and a positioning column 3.
Detailed Description
The invention will be further described in the following by way of examples with reference to the accompanying drawings.
The height of the positioning column 3 higher than the bottom plate 1 is less than the height of the positioning pin 2 higher than the bottom plate 1. The highest point of each positioning column 3 higher than the end face of the bottom plate 1 is located on the same horizontal plane, and the upper end faces of the positioning columns 3 are smooth planes.
When the checking fixture is manufactured, the relative position relation of the two positioning pins 2 on the bottom plate 1 is set by measuring the aperture of the positioning holes on the standard automobile generator end cover which is produced and passes detection and the relative distance between the positioning holes, the outer diameter of the positioning pins 2 is the same as the aperture of the positioning holes on the standard automobile generator end cover, and after the manufacturing is finished, the standard automobile generator end cover is used for testing to test whether the positioning pins 2 set on the checking fixture meet the standard; in order to reduce the weight of the checking fixture and facilitate taking, a through hole 1.1 is formed in the center of the bottom plate 1, the position of the through hole 1.1 does not affect the positions of the positioning pin 2 and the positioning column 3, the positioning columns 3 are arranged at four ends of the bottom plate 1 and are distributed in square end points, stress is uniform during supporting, annular reinforcing columns 2.1 are arranged on holes of the bottom plate 1 corresponding to the positioning pins 2, the inner diameter of each reinforcing column is matched with the outer diameter of the positioning pin 2, the positioning pin 2 is in interference fit with holes formed in the bottom plate 1 through the reinforcing columns 2.1, and meanwhile, the positioning column 3 is in interference fit with the bottom plate 1 to prevent the positioning column 3 and the bottom plate 1 from being loosened to affect measurement accuracy. When the bottom plate 1 is processed, the lower end surface needs to be processed smoothly without burrs.
Referring to fig. 3 and 4, during measurement, the position detection tool for the positioning hole of the end cover of the automobile generator in the embodiment is placed on a smooth horizontal workbench, the end cover with the positioning hole machined is taken, two positioning holes of the end cover are respectively aligned to the positioning pins 2 of the detection tool, and the positioning column 3 supports the plane of the end cover, so that the end cover is kept in a horizontal state, and if the detection tool can be smoothly placed, the position of the positioning hole of the end cover is proved to meet the requirement.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an utensil is examined to automobile power generation machine end cover locating hole position, includes bottom plate (1) and sets up two at least locating pins (2) on bottom plate (1), its characterized in that: the bottom plate (1) is also provided with at least two positioning columns (3); the position of the positioning pin (2) is matched with the position of a positioning hole on a standard automobile engine end cover; the outer diameter of the positioning pin (2) is the same as the diameter of a positioning hole in a standard automobile engine end cover.
2. The automobile generator end cover positioning hole position checking fixture as claimed in claim 1, wherein: the height of the positioning column (3) higher than the bottom plate (1) is smaller than the height of the positioning pin (2) higher than the bottom plate (1).
3. The automobile generator end cover positioning hole position checking fixture as claimed in claim 2, wherein: the highest points of the positioning columns (3) higher than the end face of the bottom plate (1) are located on the same horizontal plane.
4. The inspection and detection tool for the position of the positioning hole of the end cover of the automobile generator as claimed in claim 1, 2 or 3, wherein: the end surfaces of the positioning columns (3) higher than the bottom plate (1) are planes.
5. The automobile generator end cover positioning hole position checking fixture as claimed in claim 1, wherein: the center of the bottom plate (1) is provided with a through hole (1.1).
6. The inspection and detection tool for the position of the positioning hole of the end cover of the automobile generator as claimed in claim 1 or 2, wherein: the positioning pin (2) is in interference fit with the bottom plate (1), and the positioning column (3) is in interference fit with the bottom plate (1).
7. The automobile generator end cover positioning hole position checking fixture as claimed in claim 1, wherein: the number of the positioning pins (2) is two.
8. The automobile generator end cover positioning hole position checking fixture as claimed in claim 1, wherein: and annular reinforcing columns (2.1) are arranged on holes corresponding to the bottom plate (1) and the positioning pins (2), and the inner diameters of the annular reinforcing columns are matched with the outer diameters of the positioning pins (2).
9. The inspection and detection tool for the position of the positioning hole of the end cover of the automobile generator as claimed in claim 1, 2 or 3, wherein: the number of the positioning columns (3) is four, and the four positioning columns (3) are arranged on the bottom plate (1) at intervals.
10. The automobile generator end cover positioning hole position checking fixture as claimed in claim 1, wherein: the lower surface of the bottom plate (1) is smooth and has no protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020507396.XU CN212030369U (en) | 2020-04-09 | 2020-04-09 | Automobile generator end cover positioning hole position checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020507396.XU CN212030369U (en) | 2020-04-09 | 2020-04-09 | Automobile generator end cover positioning hole position checking fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212030369U true CN212030369U (en) | 2020-11-27 |
Family
ID=73490634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020507396.XU Active CN212030369U (en) | 2020-04-09 | 2020-04-09 | Automobile generator end cover positioning hole position checking fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212030369U (en) |
-
2020
- 2020-04-09 CN CN202020507396.XU patent/CN212030369U/en active Active
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