A surface profile gauge

Abstract

The utility model discloses a surface profile gauge, including plug gauge main part, plug gauge main part includes horizontal fixed plate, and the bottom surface middle part of horizontal fixed plate is shaped with the detection cylinder portion that extends downwards, and the bottom end surface of cylinder portion is shaped with the cylinder convex portion that extends downwards, and cylinder portion and cylinder convex portion insert the sleeve in the annular portion that is shaped in the close end of all spoke around the outside place of the center hole of hub portion of wheel hub, and the inner side wall on the bottom end of annular portion is shaped with the convex portion that extends in radial, and the edge portion bottom end surface of cylinder portion is pressed on the top surface of convex portion, and the outside wall of cylinder portion is close to or close to the inner side wall of annular portion, and cylinder convex portion inserts the sleeve in the middle part through -hole of convex portion, and the inner side wall on the middle part through -hole of convex portion is shaped with the side convex portion, and the outside wall of cylinder convex portion is close to or close to the inner side wall of side convex portion, and it simple structure, convenient to manufacture, detect convenient and simple, and the detection efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing and inspection technology, and more specifically to a surface profile inspection tool. Background Technology

[0002] In existing new energy vehicles, the wheel hubs have annular sections formed at the outer side of the center hole of all spokes, near one end, which serve as decorative cover holes for later installation of decorative covers. To ensure that the inner end face of the edge of the cover fits snugly against the inner end face of the annular groove formed on the inner sidewall of the outer end of the cover opening, the profile of the rough surface at a point approximately 5mm (4 to 6mm) from the edge of the cover opening (i.e., approximately 5mm between the inner end face of the annular groove and the inner sidewall of the annular section) must not exceed 1mm. Therefore, this needs to be inspected. However, currently there are no suitable inspection tools, and inspection can only be performed manually using calipers, which is inefficient and has limited effectiveness. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a surface contour gauge that is simple in structure, easy to manufacture, convenient and simple to inspect, and has high inspection efficiency.

[0004] The solution of this utility model to the aforementioned technical problem is:

[0005] A surface profile inspection tool includes a plug gauge body. The plug gauge body includes a horizontal fixed plate. A downwardly extending cylindrical part for inspection is formed in the middle of the bottom surface of the horizontal fixed plate. A downwardly extending cylindrical protrusion is formed on the bottom end face of the cylindrical part. The cylindrical part and the cylindrical protrusion are inserted into an annular part formed at the adjacent ends of all spokes around the outer side of the center hole of the hub portion of a wheel hub. A radially extending protrusion is formed on the inner side wall of the bottom end of the annular part. The bottom end face of the edge of the cylindrical part presses against the top surface of the protrusion. The outer side wall of the cylindrical part is close to or abuts against the inner side wall of the annular part. The cylindrical protrusion is inserted into a central through hole of the protrusion. A side protrusion is formed on the inner side wall of the central through hole of the protrusion. The outer side wall of the cylindrical protrusion is abuts against or close to the inner side wall of the side protrusion.

[0006] The edges of the horizontal fixing plates are all formed with vertical through holes. The top surface of the edges of the horizontal fixing plates corresponding to the vertical through holes is fixed with guide sleeves. Half of the top surface of the guide sleeve extends upward to form an upper limit protrusion. The telescopic detection column is inserted into the guide sleeve and the corresponding vertical through hole. The bottom of the telescopic detection column extends out of the bottom end of the corresponding vertical through hole. The bottom end of the telescopic detection column is formed with a conical head, and its bottom end presses against the bottom surface of the upper annular groove formed on the upper inner side wall of the annular part.

[0007] A central through hole is formed in the middle of the bottom surface of the cylindrical protrusion, extending upward to the middle of the top of the cylindrical part.

[0008] The horizontal fixing plate has a threaded through hole formed in the middle, and the bottom threaded part of the grip is threaded into the threaded through hole, with the bottom end face of the grip pressing against the top surface of the horizontal fixing plate.

[0009] The vertical through hole is a stepped through hole, with a large-diameter section at the top and a small-diameter section at the bottom. The middle through hole of the guide sleeve is also a stepped through hole, which includes an upper small-diameter section, a middle section, and a lower large-diameter section. The inner diameter of the lower large-diameter section is larger than that of the middle section, and the inner diameter of the middle section is larger than that of the upper small-diameter section. A radially extending ring is formed on the outer wall of the middle part of the telescopic detection column. The radially extending ring is inserted into the large-diameter section of the vertical through hole, and its bottom end face presses against the bottom end face of the large-diameter section. A return spring is inserted into the upper part of the telescopic detection column. The return spring is located in the guide sleeve, and its bottom end presses against the top end face of the radially extending ring, and its top end presses against the top end face of the middle section of the vertical through hole.

[0010] The outstanding effect of this utility model is:

[0011] Its structure is simple and easy to manufacture. During testing, it only needs to be inserted into the through hole in the middle of the annular part, making testing convenient, simple, and efficient. Attached Figure Description

[0012] Figure 1 This is a partial structural schematic diagram of the present invention;

[0013] Figure 2 This is a partial top view of the present invention;

[0014] Figure 3 This is a partial structural schematic diagram of the present invention during testing. Detailed implementation method:

[0015] For example, see below. Figures 1 to 3As shown, a surface profile inspection tool includes a plug gauge body 10. The plug gauge body 10 includes a horizontal fixing plate 11. A downwardly extending cylindrical part 12 for inspection is formed in the middle of the bottom surface of the horizontal fixing plate 11. A downwardly extending cylindrical protrusion 13 is formed on the bottom end surface of the cylindrical part 12. The cylindrical part 12 and the cylindrical protrusion 13 are inserted into annular portions formed at adjacent ends of all spokes 101 around the outer side of the center hole of the hub of the hub 100. This annular portion is the part to be used later. The decorative cover mounting hole for mounting the decorative cover has a radially extending protrusion 102 formed on the inner sidewall of the bottom end of the annular portion. The bottom end face of the edge of the cylindrical portion 12 presses against the top surface of the protrusion 102. The outer sidewall of the cylindrical portion 12 is close to or tightly abuts against the inner sidewall of the annular portion. The cylindrical protrusion 13 is inserted into the central through hole of the protrusion 102. A side protrusion 103 is formed on the inner sidewall of the central through hole of the protrusion 102. The outer sidewall of the cylindrical protrusion 13 is tightly abutting against the inner sidewall of the side protrusion 103.

[0016] The horizontal fixing plate 11 has vertical through holes 14 formed at its edges. The top surface of the horizontal fixing plate 11 corresponding to the vertical through holes 14 is fixed with a guide sleeve 20. Half of the top surface of the guide sleeve 20 extends upward to form an upper limit protrusion 21. The telescopic detection column 30 is inserted into the guide sleeve 20 and the corresponding vertical through hole 14. The bottom of the telescopic detection column 30 extends out of the bottom end of the corresponding vertical through hole 14. The bottom end of the telescopic detection column 30 is formed with a conical head, and its bottom end presses against the bottom surface of the upper annular groove 104 formed on the upper inner side wall of the annular part.

[0017] Furthermore, the bottom surface of the cylindrical protrusion 13 is formed with a central through hole 15 extending upward to the center of the top end of the cylindrical portion 12. This structure is used for weight reduction.

[0018] The horizontal fixing plate 11 has a screw hole formed in the middle. The bottom screw of the gripping part 1 is screwed into the screw hole, and the bottom end face of the gripping part 1 presses against the top surface of the horizontal fixing plate 11.

[0019] The horizontal fixed plate 11 has multiple weight-reducing through grooves 111 formed on it.

[0020] The horizontal fixing plate 11 has outwardly extending horizontal extensions 112 formed on its left, right, front and rear sides. The bottom surface of the guide sleeve 20 presses against the top surface of the edge of the horizontal fixing plate 11 and the top surface of the corresponding extension 112 and is fixedly connected by bolts.

[0021] Furthermore, the vertical through hole 14 is a stepped through hole, with a large-diameter section at the top and a small-diameter section at the bottom. The middle through hole of the guide sleeve 20 is also a stepped through hole, comprising an upper small-diameter section 22, a middle section 23, and a lower large-diameter section 24 formed sequentially from top to bottom. The inner diameter of the lower large-diameter section 24 is larger than the inner diameter of the middle section 23, and the inner diameter of the middle section 23 is larger than the inner diameter of the upper small-diameter section 22. The middle outer part of the telescopic detection column 30... A radially extending ring 31 is formed on the side wall. The radially extending ring 31 is inserted into the large-diameter hole section of the vertical through hole 14. Its bottom end face presses against the bottom end face of the large-diameter hole section. A return spring 2 is inserted into the upper part of the telescopic detection column 30. The return spring 2 is located in the guide sleeve 20. Its bottom end presses against the top end face of the radially extending ring 31. Its top end presses against the top end face of the middle hole section 23 of the vertical through hole 14. The upper part of the return spring 2 is located in the middle hole section 23.

[0022] The distance between the bottom end of the tapered head formed at the bottom of the telescopic detection column 30 and the bottom surface of the upper annular groove 104 is 4 to 6 mm from the inner wall of the annular part, which is consistent with the position to be detected.

[0023] The outer side wall of the cylindrical protrusion 13 is formed with an outer protrusion ring 131, and its outer side wall is close to or adjacent to the inner side wall of the side protrusion 103.

[0024] In use, this embodiment can be inserted into the corresponding position of the hub 100. The bottom edge of the cylindrical part 12 presses against the top surface of the protrusion 102. The outer side wall of the cylindrical part 12 is close to or tightly attached to the inner side wall of the annular part, specifically, they are basically fitted. The cylindrical protrusion 13 is inserted into the central through hole of the protrusion 102. A side protrusion 103 is formed on the inner side wall of the central through hole of the protrusion 102. The outer side wall of the cylindrical protrusion 13 is tightly attached to or close to the inner side wall of the side protrusion 103, specifically, they are basically fitted. This ensures that the cylindrical protrusion 13 can rotate. At the same time, the outer side wall of the outer protrusion ring 131 contacts the inner side wall of the side protrusion 103.

[0025] At this time, the bottom end of the tapered head formed at the bottom end of the telescopic detection column 30 presses against the bottom surface of the upper annular groove 104 formed on the upper inner side wall of the annular part. The distance between the pressing position and the inner side wall of the annular part is 4 to 6 mm. Then, observe the distance of the top end of the telescopic detection column 30 extending out of the top surface of the guide sleeve 20. In this embodiment, there is a distance of 1 mm between the top surface of the guide sleeve 20 and the top surface of the upper limit protrusion 21.

[0026] If the top of the telescopic detection column 30 extends beyond the top surface of the guide sleeve 20 and is lower than the top surface of the upper limit protrusion 21, it indicates that the surface profile of the corresponding position of the bottom surface of the upper annular groove 104 meets the design requirements. Conversely, if the top surface of the telescopic detection column 30 is higher than the top surface of the upper limit protrusion 21 or lower than the top surface of the guide sleeve 20, it is a defective product.

[0027] The device needs to be inserted once and then rotated horizontally to change the position of the bottom of the conical head of the telescopic detection column 30. This allows it to detect the height of different positions on the circumference at a distance of 4 to 6 mm from the inner wall of the annular part. If multiple tests are passed, it indicates that the structure is qualified.

[0028] In this embodiment, only a rotation detector needs to be inserted, which is convenient to detect, simple to manufacture, has a simple structure, and good performance.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A face profile gauge comprising a plug gauge body (10) characterised in that: The plug gauge body (10) includes a horizontal fixing plate (11). A downwardly extending cylindrical portion (12) for testing is formed in the center of the bottom surface of the horizontal fixing plate (11). A downwardly extending cylindrical protrusion (13) is formed on the bottom end face of the cylindrical portion (12). The cylindrical portion (12) and the cylindrical protrusion (13) are inserted into an annular portion formed at one close end of all the spokes (101) around the outer side of the center hole of the hub (100). The inner wall of the bottom end of the annular portion... A radially extending protrusion (102) is formed, the bottom end face of the edge of the cylindrical part (12) presses against the top surface of the protrusion (102), the outer side wall of the cylindrical part (12) is close to or closely abuts the inner side wall of the annular part, the cylindrical protrusion (13) is inserted into the central through hole of the protrusion (102), a side protrusion (103) is formed on the inner side wall of the central through hole of the protrusion (102), and the outer side wall of the cylindrical protrusion (13) is closely abutting or close to the inner side wall of the side protrusion (103). The horizontal fixing plate (11) has vertical through holes (14) formed at its edges. The top surface of the horizontal fixing plate (11) corresponding to the vertical through holes (14) is fixed with guide sleeves (20). Half of the top surface of the guide sleeves (20) extends upward to form an upper limit protrusion (21). The telescopic detection column (30) is inserted into the guide sleeves (20) and the corresponding vertical through holes (14). The bottom of the telescopic detection column (30) extends out of the bottom end of the corresponding vertical through hole (14). The bottom end of the telescopic detection column (30) is formed with a conical head, and its bottom end presses against the bottom surface of the upper annular groove (104) formed on the upper inner side wall of the annular part.

2. A face profile gauge according to claim 1, wherein: The bottom surface of the cylindrical protrusion (13) is formed with a central through hole (15) extending upward to the center of the top of the cylindrical part (12).

3. A face profile gauge according to claim 1, wherein: The horizontal fixing plate (11) has a screw hole formed in the middle, and the bottom screw of the grip (1) is screwed into the screw hole. The bottom end face of the grip (1) presses against the top surface of the horizontal fixing plate (11).

4. The face profile gauge of claim 1, wherein: The horizontal fixing plate (11) has multiple weight-reducing through grooves (111) formed on it.

5. A surface profile inspection fixture according to claim 1, characterized in that: The horizontal fixing plate (11) has outwardly extending horizontal extensions (112) formed on its left, right, front and rear sides. The bottom surface of the guide sleeve (20) presses against the top surface of the edge of the horizontal fixing plate (11) and the top surface of the corresponding extension (112) and is fixedly connected by bolts.

6. A surface profile inspection fixture according to claim 1, characterized in that: The vertical through hole (14) is a stepped through hole, with a large-diameter section at the top and a small-diameter section at the bottom. The middle through hole of the guide sleeve (20) is a stepped through hole, which includes an upper small-diameter section (22), a middle section (23), and a lower large-diameter section (24). The inner diameter of the lower large-diameter section (24) is larger than the inner diameter of the middle section (23), and the inner diameter of the middle section (23) is larger than the inner diameter of the upper small-diameter section (22). The middle of the telescopic detection column (30) is... A radially extending ring (31) is formed on the outer side wall of the part. The radially extending ring (31) is inserted into the large-diameter hole section of the vertical through hole (14). Its bottom end face is pressed against the bottom end face of the large-diameter hole section. A return spring (2) is inserted into the upper part of the telescopic detection column (30). The return spring (2) is located in the guide sleeve (20). Its bottom end is pressed against the top end face of the radially extending ring (31), and its top end is pressed against the top end face of the middle hole section (23) of the vertical through hole (14).

7. A surface profile gauge according to claim 1, wherein: The outer side wall of the cylindrical protrusion (13) is formed with an outer protrusion ring (131), and its outer side wall is close to or near the inner side wall of the side protrusion (103).

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