Shaft cap testing fixture

Abstract

The utility model discloses a shaft cover testing fixture which comprises a base plate, a vertical plate fixed on the base plate and a pair of limiting plates fixed on the left side and the right side of the base plate, the vertical plate is located in the middle of the base plate, the front side face of the vertical plate, the base plate and the pair of limiting plates form a first detection station, and the rear side face of the vertical plate, the base plate and the pair of limiting plates form a second detection station. A key groove is formed in the rear side face of the vertical plate, and a flat key is fixed in the key groove and protrudes backwards out of the rear side face of the vertical plate. If the shaft cover can be placed in the first detection station and no obvious gap exists between the shaft cover and the limiting plate, the length of the shaft cover is qualified. The worker puts the shaft cover to a second detection station, if the shaft cover can be tightly attached to the rear side face of the vertical plate, the flat key can be matched with the square notch in the side face of the shaft cover, and the shaft cover is qualified. According to the design, the working efficiency and the detection accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to the field of diesel engine product detection, in particular to the detection of axle covers. Background Art

[0002] With the development of my country's engine industry, the production efficiency requirements of diesel engines are getting higher and higher. The original shaft cover inspection method (manual inspection method) cannot meet the production requirements. In order to meet production, save shaft cover inspection time, and ensure production rhythm and inspection efficiency, it is necessary to change the existing shaft cover inspection method. Utility Model Content

[0003] The technical problem solved by the utility model is that the manual inspection method of the shaft cover cannot meet the production requirements.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a shaft cover inspection fixture, comprising a base plate, a vertical plate fixed on the base plate, and a pair of limit plates fixed on the left and right sides of the base plate, the vertical plate is located in the middle of the base plate, the front side surface of the vertical plate, the base plate and the pair of limit plates constitute a first inspection station, the rear side surface of the vertical plate, the base plate and the pair of limit plates constitute a second inspection station, a key slot is provided on the rear side surface of the vertical plate, a flat key is fixed in the key slot, and the flat key protrudes backward from the rear side surface of the vertical plate.

[0005] According to the above technical solution, the worker places the shaft cover to be inspected at the first inspection station. If the shaft cover can be placed in the first inspection station, and there is no obvious gap between the left and right sides of the shaft cover and the corresponding limit plates, then the length of the shaft cover is qualified. If the shaft cover cannot be placed in the first inspection station, or the shaft cover can be placed in the first inspection station but there is an obvious gap between the left and right sides of the shaft cover and the limit plates on the corresponding sides, then the shaft cover is unqualified.

[0006] For the shaft caps with qualified length, the workers put them to the second inspection station, and the shaft caps are close to the rear side of the vertical plate. If the shaft caps can fit tightly with the rear side of the vertical plate, it means that the flat key can fit with the square notch on the side of the shaft cap, and the shaft cap is qualified. If the shaft caps cannot fit tightly with the rear side of the vertical plate and are blocked by the flat key, it means that the flat key cannot fit with the square notch on the side of the shaft cap, and the shaft cap is unqualified.

[0007] The vertical plate is equipped with forward and backward flat key fastening screws, which are threaded with the flat key to fix the flat key in the keyway. The flat key fastening screw head sinks into the countersunk hole of the vertical plate.

[0008] A fixing sleeve hole is provided on any one of a pair of limiting plates, a positioning hole is provided above the fixing sleeve hole, the positioning hole is perpendicular to the fixing sleeve hole, a fixing sleeve is matched in the fixing sleeve hole, one end of the fixing sleeve extends into the first detection station, and a fixing sleeve fastening screw is screwed into the positioning hole. The length of the fixing sleeve extending into the first detection station can be controlled by the worker, and the position of the fixing sleeve is locked by the fixing sleeve fastening screw. The setting of the fixing sleeve has the function of: detecting the shaft cover (called the small shaft cover) whose length is less than the distance between a pair of limiting plates. When the position of the fixing sleeve is fixed, the worker places the small shaft cover to the first detection station. If the small shaft cover can be placed between the fixing sleeve and a limiting plate, and there is no obvious gap between the fixing sleeve and the limiting plate, then the length of the small shaft cover is qualified. If the small shaft cover cannot be placed between the fixing sleeve and a limiting plate, or can be placed between the fixing sleeve and a limiting plate but there is an obvious gap between the fixing sleeve or the limiting plate, then the length of the small shaft cover is unqualified. The function of the fixing sleeve also includes: positioning the small shaft cover at the first inspection station, providing conditions for workers to use other inspection tools to inspect the small shaft cover.

[0009] An auxiliary screw is threaded on the fixing sleeve, and the auxiliary screw is located outside the first detection station, which is convenient for workers to adjust the position of the fixing sleeve.

[0010] The vertical plate is arched, and the left and right sides of the vertical plate are vertical planes, and the limit plate is against the vertical planes; the top of the vertical plate is a horizontal plane, and the horizontal plane is marked, for example, the standard length value of the test product.

[0011] The vertical plate is fixedly connected to the bottom plate by vertical plate fastening screws, and the limiting plate is fixedly connected to the bottom plate by limiting plate fastening screws.

[0012] The utility model replaces manual measurement with a standard gauge, and the position of the fixed sleeve can be flexibly adjusted, thereby expanding the application range of the gauge. The utility model can not only save employees' physical strength and working time, improve work efficiency, and improve the accuracy of detection, but also will not cause wear to the product, thereby avoiding affecting the accuracy of the shaft cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the shaft cover inspection fixture;

[0015] Figure 2 This is a schematic diagram of the shaft cover inspection fixture from another perspective;

[0016] Figure 3 This is the main view of the shaft cover inspection fixture;

[0017] Figure 4 for Figure 3 Bottom view of

[0018] Figure 5 for Figure 3 Right view of;

[0019] Figure 6 for Figure 3 Left view of

[0020] Figure 7 for Figure 3 A top view of

[0021] Figure 8 for Figure 6 AA section view;

[0022] Fig. 9 for Figure 8 BB cross-sectional view.

[0023] Explanation of symbols in the figure:

[0024] 10. Bottom plate;

[0025] 20. Vertical plate; 201. Horizontal plane; 21. Flat key; 22. Flat key fastening screw; 23. Vertical plate fastening screw;

[0026] 30. Limiting plate; 31. Fixing sleeve; 32. Fixing sleeve fastening screw; 33. Auxiliary screw; 34. Limiting plate fastening screw;

[0027] 41. First inspection station; 42. Second inspection station;

[0028] 90. Shaft cover. DETAILED DESCRIPTION

[0029] Combination Figure 1 , Figure 2 A shaft cover inspection fixture includes a bottom plate 10, a vertical plate 20 fixed on the bottom plate, and a pair of limit plates 30 fixed on the left and right sides of the bottom plate. The vertical plate is located in the middle of the bottom plate. The front side of the vertical plate, the bottom plate and the pair of limit plates constitute a first inspection station 41. The rear side of the vertical plate, the bottom plate and the pair of limit plates constitute a second inspection station 42. A key slot is provided on the rear side of the vertical plate. A flat key 21 is fixed in the key slot. The flat key protrudes backward from the rear side of the vertical plate.

[0030] refer to Fig. 9 The vertical plate 20 is provided with forward and backward flat key fastening screws 22, which are screwed to the flat key 21 to fix the flat key in the keyway.

[0031] A fixing sleeve hole is formed in any one of a pair of limiting plates 30, a positioning hole is provided above the fixing sleeve hole, the positioning hole is perpendicular to the fixing sleeve hole, a fixing sleeve 31 is matched in the fixing sleeve hole, one end of the fixing sleeve extends into the first detection station 41, and a fixing sleeve fastening screw 32 is screwed into the positioning hole.

[0032] An auxiliary screw 33 is screwed onto the fixing sleeve 31 , and the auxiliary screw is located outside the first detection station 41 .

[0033] The vertical plate 20 is arched, and the left and right sides of the vertical plate are vertical planes, and the limit plate 30 is against the vertical plane; the top of the vertical plate is a horizontal plane 23, and the horizontal plane is provided with a mark, which indicates the standard length value of the product being tested.

[0034] refer to Figure 8 The vertical plate 20 is fixedly connected to the bottom plate 10 by the vertical plate fastening screws 23, and the limiting plate 30 is fixedly connected to the bottom plate by the limiting plate fastening screws 34.

[0035] The worker places the shaft cover 90 to be inspected at the first inspection station 41. If the shaft cover can be placed in the first inspection station 41, and there is no obvious gap between the left and right sides of the shaft cover and the corresponding limit plates 30, then the length of the shaft cover is qualified. If the shaft cover cannot be placed in the first inspection station 41, or the shaft cover can be placed in the first inspection station but there is an obvious gap between the left and right sides of the shaft cover and the limit plates 30 on the corresponding sides, then the shaft cover is unqualified.

[0036] For the shaft cover 90 with qualified length, the worker places it at the second inspection station 42, and the shaft cover moves closer to the rear side of the vertical plate 20. If the shaft cover can be tightly attached to the rear side of the vertical plate, it means that the flat key 21 can be matched with the square notch on the side of the shaft cover, and the shaft cover is qualified. If the shaft cover cannot be tightly attached to the rear side of the vertical plate 20 and is blocked by the flat key 21, it means that the flat key cannot be matched with the square notch on the side of the shaft cover, and the shaft cover is unqualified.

[0037] The length of the fixed sleeve 31 extending into the first inspection station 41 can be controlled by the worker, and the position of the fixed sleeve is locked by the fixed sleeve fastening screw 32. When the fixed sleeve 31 is fixed, the worker places the small shaft cover to the first inspection station 41. If the small shaft cover can be placed between the fixed sleeve 31 and a limit plate 30, and there is no obvious gap between the fixed sleeve and the limit plate, then the length of the small shaft cover is qualified. If the small shaft cover cannot be placed between the fixed sleeve 31 and a limit plate 30, or can be placed between the fixed sleeve and a limit plate but there is an obvious gap between the fixed sleeve or the limit plate, then the length of the small shaft cover is unqualified. The function of the fixed sleeve also includes: positioning the small shaft cover in the first inspection station 41, and providing conditions for workers to use other inspection tools to inspect the small shaft cover.

[0038] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A shaft cover inspection fixture, comprising a bottom plate (10), a vertical plate (20) fixed on the bottom plate, and a pair of limit plates (30) fixed on the left and right sides of the bottom plate, wherein the vertical plate is located in the middle of the bottom plate, the front side of the vertical plate, the bottom plate and the pair of limit plates constitute a first inspection station (41), and the rear side of the vertical plate, the bottom plate and the pair of limit plates constitute a second inspection station (42), characterized in that: A keyway is provided on the rear side of the vertical plate, a flat key (21) is fixed in the keyway, and the flat key protrudes backwards from the rear side of the vertical plate.

2. The shaft cover inspection fixture according to claim 1, characterized in that: The vertical plate (20) is provided with a front-to-back flat key fastening screw (22), which is screwed with the flat key (21) to fix the flat key in the keyway.

3. The shaft cover inspection fixture according to claim 1, characterized in that: A fixing sleeve hole is formed in any one of a pair of limiting plates (30), a positioning hole is provided above the fixing sleeve hole, the positioning hole is perpendicular to the fixing sleeve hole, a fixing sleeve (31) is matched in the fixing sleeve hole, one end of the fixing sleeve extends into the first detection station (41), and a fixing sleeve fastening screw (32) is screwed into the positioning hole.

4. The shaft cover inspection fixture according to claim 3, characterized in that: An auxiliary screw (33) is screwed onto the fixing sleeve (31), and the auxiliary screw is located outside the first detection station (41).

5. The shaft cover inspection fixture according to claim 1, characterized in that: The vertical plate (20) is arched, the left and right sides of the vertical plate are vertical planes, and the limiting plate (30) is against the vertical plane; the top of the vertical plate is a horizontal plane (201), and the horizontal plane is provided with a mark.

6. The shaft cover inspection fixture according to claim 1, characterized in that: The vertical plate (20) is fixedly connected to the bottom plate (10) via vertical plate fastening screws (23), and the limiting plate (30) is fixedly connected to the bottom plate via limiting plate fastening screws (34).

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