Thickness detection gauge

Abstract

The utility model relates to a thickness detection gauge, which comprises a positioning seat, a positioning pin, a calibration pin, a pointer type detection meter and a bent plate, the positioning seat comprises a positioning block and a limiting block which are integrally connected; two positioning holes and a calibration hole are formed in the positioning block; the calibration hole is positioned between the two positioning holes; the positioning hole is matched with the positioning pin; the calibration hole is matched with the calibration pin; the positioning surface at the lower end of the positioning block can be attached to the flange surface of the workpiece; first detection holes are respectively formed in two sides of the positioning block; second detection holes are respectively formed in two sides of the limiting block; the pointer type detection meter is arranged on the upper surface of the bent plate; a measuring head of the pointer type detection meter penetrates through the side surface of the bent plate; the measuring head can penetrate into the first detection hole or the second detection hole. The device is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of machining inspection tools, in particular to a thickness gauge. Background Art

[0002] In order to reduce the weight of the hub product, the area around the connection holes is designed in a petal pattern, and each mounting hole is at the center of the petal. If it is not at the center, the wall thickness of the mounting hole and the petal will be uneven, and the thin-wall part will even affect the strength of the hub product. In severe cases, fracture and damage may occur, leading to accidents. Therefore, it is crucial that the wall thickness of the mounting hole and the petal is uniform. However, since the petal is inside the flange mounting surface, it is simply impossible to detect the wall thickness of the mounting hole and the petal with ordinary measuring tools. Some processing manufacturers can only use 3D scanners or coordinate measuring machines for detection, which is not only costly but also time-consuming and laborious. In addition, even with expensive detection methods, on-line detection cannot be achieved. The above problems urgently need to be solved. Content of the Utility Model

[0003] The utility model mainly solves the technical problems of high detection cost and time-consuming and laborious detection in the prior art, and designs a thickness gauge. There are 2 positioning pins and 1 calibration pin on its positioning seat. The two positioning pins on the outside are inserted into two mounting holes on the flange surface of the hub product, so that the gauge and the hub product can be accurately positioned. The calibration pin is inserted into the mounting hole to be detected. A total of 2 first detection holes and 2 second detection holes are designed on the positioning seat. The two upper first detection holes are used for calibration, and the two lower second detection holes are used for wall thickness detection. After calibrating and zeroing the pointer-type detection gauge, insert it into the second detection hole to detect the wall thickness. It is very easy to obtain the wall thickness size of the hub product through the reading of the pointer-type detection gauge, and it can be immediately judged whether it is qualified. By using this gauge, not only is the operation convenient and the detection is fast, realizing on-line detection in the machining process of the hub product, but also the detection cost is low and it is very easy to be accepted by processing manufacturers. Such a detection scheme can be applied to most similar occasions, can be widely applied, and can fundamentally solve the above-mentioned problems.

[0004] A thickness gauge of the utility model mainly includes a positioning seat, positioning pins, calibration pins, bent plates, pointer-type detection gauges, etc. It is directly placed into the mounting hole of the hub product for detection, with simple and easy-to-learn operation, fast reading, realizing on-line detection in the processing process, and saving expensive detections such as 3D scanners or coordinate measuring machines. It is not only highly efficient but also accurate and reliable.

[0005] The technical solution of the utility model is realized as follows: The positioning seat is the main component of this inspection gauge. Its two positioning holes, one calibration hole, and the positioning surface have very high machining accuracy. In addition, the parallelism between the first inspection hole and the second inspection block and the positioning surface also reaches the micron level, providing a strong guarantee for the accurate detection of the wall thickness. The two upper first inspection holes for calibration are connected to the calibration hole; the two lower second inspection holes for wall thickness detection penetrate through the positioning seat. The pointer-type inspection gauge can contact the calibration pin through the two upper first inspection holes for calibration, and can contact the blank surface of the petal through the two lower second inspection holes for wall thickness detection.

[0006] The pointer-type inspection gauge is installed on the bending plate. The small end of the bending plate has a through hole, and there is an opening on one side of the through hole. The pointer-type inspection gauge is passed through the through hole and abutted against the bending plate, and then locked with an internal hexagonal screw, so that the bending plate and the pointer-type inspection gauge are fixed together. The large end of the bending plate is relatively wider and longer than the position of the pointer rod of the pointer-type inspection gauge at the maximum stroke, so the bending plate provides effective protection for the pointer-type inspection gauge.

[0007] The utility model provides a thickness inspection gauge, including: a positioning seat, a positioning pin, a calibration pin, a pointer-type inspection gauge, and a bending plate;

[0008] The positioning seat includes a positioning block and a limiting block integrally connected; two positioning holes and one calibration hole are arranged on the positioning block; the calibration hole is located between the two positioning holes; the positioning holes are matched with the positioning pins; the calibration hole is matched with the calibration pin; the positioning surface at the lower end of the positioning block can be attached to the flange surface of the workpiece; first inspection holes are respectively arranged on both sides of the positioning block; second inspection holes are respectively arranged on both sides of the limiting block;

[0009] The pointer-type inspection gauge is arranged on the upper surface of the bending plate; the measuring head of the pointer-type inspection gauge penetrates through the side surface of the bending plate;

[0010] The measuring head can penetrate into the first inspection hole or the second inspection hole.

[0011] Further, after the measuring head penetrates into the first inspection hole, the end of the measuring head can contact the calibration pin.

[0012] Further, after the measuring head penetrates into the second inspection hole, the end of the measuring head can contact the outer side wall of the workpiece.

[0013] Further, the positioning block is provided with an arc surface; the radian of the arc surface is consistent with the radian of the workpiece.

[0014] Further, the distance between the calibration hole and the positioning hole is consistent with the distance between two adjacent mounting holes of the workpiece.

[0015] Further, the first inspection hole is communicated with the calibration hole.

[0016] Further, an anti-slip layer is provided at the end of the bent plate.

[0017] Further, the diameters of the positioning pin and the calibration pin are adapted to the inner diameter of the mounting hole.

[0018] Further, the bent plate can be attached to the side surface of the positioning block or the limiting block.

[0019] Compared with the prior art, the thickness gauge provided by the present utility model has the following advantages:

[0020] 1. For the thickness gauge of the present utility model, there are 2 positioning pins and 1 calibration pin on its positioning seat. The two positioning pins located on the outside are inserted into two mounting holes on the flange surface of the hub product, and the calibration pin is inserted into the mounting hole to be detected. In this way, the gauge and the hub product can be accurately positioned, and the operation is simple and convenient.

[0021] 2. For the thickness gauge of the present utility model, two first detection holes are provided on the upper side of the positioning seat for calibration, and the two second detection holes below are used for the detection of the wall thickness. After calibrating and zeroing the pointer type detection meter, insert it into the second detection hole to detect the wall thickness. The wall thickness dimension of the hub product can be easily obtained through the reading of the pointer type detection meter, and it can be immediately judged whether it is qualified for rapid detection, realizing the on-line detection in the processing process of the hub product, and the detection cost is low, which is very easy to be accepted by the processing manufacturers. Description of the Drawings

[0022] Figure 1 is a schematic structural view of the gauge of the present utility model during calibration.

[0023] Figure 2 is a schematic sectional view of the gauge of the present utility model during calibration.

[0024] Figure 3 is a schematic structural view of the gauge of the present utility model during measurement.

[0025] Figure 4 is a right view of the gauge of the present utility model.

[0026] Figure 5 is a bottom view of the gauge of the present utility model.

[0027] Figure 6 is a front view of the hub product of the present utility model.

[0028] Reference Numerals: 1, positioning seat; 2, flange surface; 3, positioning hole; 4, mounting hole; 5, positioning pin; 6, positioning surface; 7, calibration pin; 8, mounting hole to be detected; 9, pointer type detection meter; 10, bent plate; 11, first detection hole; 12, measuring head; 13, second detection hole. Detailed implementation mode

[0029] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the contents.

[0030] As Figures 1-6 shown, a thickness detection gauge provided by an embodiment of the present utility model includes: a positioning seat 1, a positioning pin 5, a calibration pin 7, a pointer type detection gauge 9 and a bent plate 10;

[0031] The positioning seat 1 includes a positioning block and a limiting block integrally connected; two positioning holes 3 and a calibration hole are arranged on the positioning block; the calibration hole is located between the two positioning holes 3; the positioning hole 3 cooperates with the positioning pin 5; the calibration hole cooperates with the calibration pin 7; the positioning surface 6 at the lower end of the positioning block can be attached to the flange surface 2 of the workpiece; first detection holes 11 are respectively arranged on both sides of the positioning block; second detection holes 13 are respectively arranged on both sides of the limiting block;

[0032] The pointer type detection gauge 9 is arranged on the upper surface of the bent plate 10; the measuring head 12 of the pointer type detection gauge 9 passes through the side surface of the bent plate 10; the bent plate 10 includes a large end and a small end; the small end is arranged on one side of the large end; a through hole is arranged in the middle of the small end; an opening is arranged on one side of the through hole; the measuring head of the pointer type detection gauge (9) can pass through the through hole. After the pointer type detection gauge 9 passes through the through hole, the dial of the pointer type detection gauge 9 is close to the inner side of the small end, and then an inner hexagon screw is used to pass through the upper and lower positions on the opening side of the through hole and rotated to lock the inner hexagon screw, so that the pointer type detection gauge 9 and the bent plate 10 are fixed. The length of the large end of the bent plate 10 is greater than the length of the gauge rod of the pointer type detection gauge 9, and the bent plate 10 is provided with an anti-slip layer to increase the stability when held. The small end of the bent plate 10 can be attached to the side surface of the positioning block or the limiting block.

[0033] The measuring head 12 can penetrate into the first detection hole 11 or the second detection hole 13.

[0034] When calibrating, after the measuring head 12 penetrates into the first detection hole 11, the end of the measuring head 12 can contact the calibration pin 7.

[0035] When detecting, after the measuring head 12 penetrates into the second detection hole 13, the end of the measuring head 12 can contact the outer side wall of the workpiece.

[0036] The positioning block is provided with an arc surface; the radian of the arc surface is consistent with the radian of the workpiece. The distance between the calibration hole and the positioning hole 3 is consistent with the distance between two adjacent mounting holes 4 of the workpiece.

[0037] There is a gap of 1.5 mm to 3 mm between the inner side of the limit block and the outer wall of the workpiece to prevent over-positioning, and the probe of the pointer-type inspection gauge 9 cannot pass through the second inspection hole 13. The first inspection hole 11 communicates with the calibration hole. The diameters of the positioning pin and the calibration pin are adapted to the inner diameter of the mounting hole 4.

[0038] The working process of this utility model patent:

[0039] First, place the positioning seat 1 on the flange surface 2 of the hub product, align the two positioning holes 3 on the outside with the two mounting holes 4 on the flange surface, and then pass the two positioning pins 5 through the two positioning holes 3 and into the two mounting holes 4. Visually check that the positioning surface 6 of the positioning seat fits seamlessly with the flange surface 2. Thus, the positioning of this inspection gauge and the hub product is completed. Then insert the calibration pin 7 into the to-be-inspected mounting hole 8 to be inspected, preparing for the calibration of the pointer-type inspection gauge 9.

[0040] Pass the pointer-type inspection gauge 9 through the through-hole of the bent plate 10 and lean it against the bent plate, and then tighten the hexagon socket head cap screw at the opening. In this way, the fixation of the bent plate 10 and the pointer-type inspection gauge 9 is completed. Hold the bent plate 10 and pass the pointer-type inspection gauge 9 through the first inspection hole 11 on the upper side of the positioning seat, and make the positioning surface of the bent plate fit tightly against the top surface of the first inspection hole 11. At this time, the probe 12 of the pointer-type inspection gauge contacts the calibration pin 7. Then rotate the dial to zero the pointer-type inspection gauge to complete the calibration.

[0041] Hold and take out the bent plate 10, pass it through the second inspection hole 13 on the lower side of the positioning seat, and make the positioning surface of the bent plate fit tightly against the top surface of the second inspection hole 13. At this time, read the value of the pointer-type inspection gauge, which is the wall thickness value between the mounting hole 8 of the hub product and the petal. If the wall thickness value is within the tolerance range, it is determined that the hub product is a qualified product, and continue to detect the next wall thickness. If it exceeds the tolerance range, it is determined that the hub product is an unqualified product, and the detection can be terminated. If the detection is qualified, continue the detection. Hold and take out the bent plate 10, pass it through another second inspection hole 13 on the lower side of the positioning seat to obtain the next wall thickness value, and make a judgment according to the above method.

[0042] Repeat the above steps to detect the wall thickness between the next mounting hole and the petal, and make a judgment according to the above method.

[0043] When detecting the next hub product, repeat the above steps.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifications made to the technical solutions recorded in the foregoing embodiments, or equivalent replacements of some or all of the technical features therein, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thickness detection gauge, characterized in that: include: A positioning seat (1), a positioning pin (5), a calibration pin (7), a pointer-type detection meter (9) and a bending plate (10); The positioning seat (1) comprises a positioning block and a limiting block which are integrally connected; two positioning holes (3) and a calibration hole are arranged on the positioning block; the calibration hole is located between the two positioning holes (3); the positioning hole (3) cooperates with the positioning pin (5); the calibration hole cooperates with the calibration pin (7); the positioning surface (6) at the lower end of the positioning block can be fitted with the flange surface (2) of the workpiece; first detection holes (11) are respectively arranged on both sides of the positioning block; and second detection holes (13) are respectively arranged on both sides of the limiting block; The pointer-type detection gauge (9) is arranged on the upper surface of the bent plate (10); the probe (12) of the pointer-type detection gauge (9) passes through the side surface of the bent plate (10); The measuring head (12) can penetrate into the first detection hole (11) or the second detection hole (13).

2. A thickness detection gauge according to claim 1, characterized in that: After the probe (12) penetrates the first detection hole (11), the end of the probe (12) can contact the calibration pin (7).

3. A thickness detection gauge according to claim 1, characterized in that: After the probe (12) penetrates the second detection hole (13), the end of the probe (12) can contact the outer wall of the workpiece.

4. A thickness detection gauge according to claim 1, characterized in that: The positioning block is provided with an arc surface; the curvature of the arc surface is consistent with the curvature of the workpiece.

5. A thickness detection gauge according to claim 1, characterized in that: The distance between the calibration hole and the positioning hole (3) is consistent with the distance between two adjacent mounting holes (4) of the workpiece.

6. A thickness detection gauge according to claim 1, characterized in that: The first detection hole (11) is connected to the calibration hole.

7. A thickness detection gauge according to claim 1, characterized in that: An anti-slip layer is provided at the end of the bent plate (10).

8. A thickness detection gauge according to claim 1, characterized in that: The diameters of the positioning pin and the calibration pin are adapted to the inner diameter of the mounting hole (4).

9. A thickness detection gauge according to claim 1, characterized in that: The bent plate (10) can fit with the side surface of the positioning block or the limiting block.

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