Wall thickness measuring tool

Abstract

The invention relates to the technical field of wall thickness detection, and particularly discloses a wall thickness measuring tool, which comprises a supporting mechanism, a shell, two connecting rods and a driving assembly, the two connecting rods are arranged in parallel at an interval, the connecting rods are connected to the shell in a sliding manner, and the driving assembly is used for driving the two connecting rods to slide reversely; the number of the detection mechanisms is two, each detection mechanism comprises a mounting block, a connecting column, a first spring and a distance measuring sensor, the mounting blocks are arranged on the connecting rods, the connecting columns are slidably connected in the mounting blocks, the connecting columns are used for abutting against a to-be-detected part, the first springs are connected between the connecting columns and the mounting blocks, and the distance measuring sensors are arranged in the mounting blocks; and the reading meter is arranged on the shell, is electrically connected with the distance measuring sensor, and is used for displaying the sum of the springback distances of the two connecting columns. The thickness of the part can be measured under the condition that the part is not segmented, the completeness of the part can be guaranteed, and waste is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wall thickness detection, and in particular to a wall thickness measuring tool. Background Art

[0002] After the production of some parts is completed, the wall thickness needs to be measured to determine whether the product meets the requirements. When measuring the wall thickness, a vernier caliper or a micrometer is usually used. The two detection ends are pressed against the two sides of the part to complete the thickness measurement.

[0003] For some irregular shell parts, due to the limited length of the detection end of the vernier caliper and micrometer, it is difficult to place the detection end at the point to be measured. Therefore, it is necessary to segment the part to be measured, and then measure the thickness of the segmented part. Measuring after the part is segmented will cause the measured part to be damaged and unusable, resulting in waste; some products are made of hard materials and are difficult to segment; curling burrs will form on the edges of the products after segmentation by tools, affecting the measurement accuracy of the products. Summary of the invention

[0004] In order to measure the thickness of a part without dividing the part, the present application provides a wall thickness measuring tool.

[0005] A wall thickness measurement tool provided in this application adopts the following technical solution: A wall thickness measuring tool, comprising: The supporting mechanism comprises a housing, a connecting rod and a driving assembly, wherein two connecting rods are provided and arranged in parallel at intervals, the connecting rods are slidably connected to the housing, and the driving assembly is used to drive the two connecting rods to slide in opposite directions; The detection mechanism is provided with two groups, which are respectively arranged on the side where the two connecting rods are close to each other. The detection mechanism includes a mounting block, a connecting column, a first spring and a distance sensor. The mounting block is arranged on the connecting rod. One end of the connecting column is slidably connected to the mounting block. The other end of the connecting column is used to abut against the part to be measured. The first spring is connected between the connecting column and the mounting block. The first spring makes the connecting column have a tendency to slide toward the outside of the mounting block. The distance sensor is arranged in the mounting block. The distance sensor and the connecting column are arranged at intervals. When the thickness is not measured, the ends of the two connecting columns abut against each other. When the thickness is measured, the two connecting columns are respectively pressed against the two sides of the part to be measured. The distance sensor detects the rebound distance of the connecting column. A digital indicator is arranged on the shell, the digital indicator is electrically connected to the distance measuring sensor, and the digital indicator is used to display the sum of the rebound distances of the two connecting columns.

[0006] By adopting the above technical solution, the two connecting columns are respectively pressed against the surfaces on both sides of the part to be measured, and the connecting columns can rebound. The wall thickness of the part can be obtained by measuring the rebound distance of the two connecting columns and calculating the sum of the two. Since the connecting rod is long, the length of the connecting rod can be 20 cm, or longer, so that the wall thickness measuring tool can measure the wall thickness of the internal area of ​​the irregular part, and there is no need to damage the part during measurement, which helps to reduce waste and ensure the accuracy of the measurement result.

[0007] Optionally, the driving assembly includes a handle and a second spring, wherein two handles are provided, and each handle is fixedly connected to a connecting rod so that when the two handles slide toward each other at one end away from the connecting rod, the two connecting rods slide toward each other away, and the second spring is connected between the two handles, and the second spring causes the two handles to slide toward the side away from each other at one end away from the connecting rod.

[0008] By adopting the above technical solution, in the initial state, the two connecting columns are in contact with each other; when the wall thickness of the part needs to be measured, the two handles are slid toward the side closer to each other, so that the two connecting rods can slide toward the side away from each other. At this time, the two connecting columns are separated, which makes it easy to place the part between the two connecting columns, thereby realizing subsequent wall thickness measurement.

[0009] Optionally, a first ball is disposed at each end of the two connecting posts that are close to each other, and the first ball is used to abut against the surface of the part to be measured.

[0010] By adopting the above technical solution, after the first ball is pressed against the surface of the part, the wall thickness measuring tool can be moved as a whole. During the overall movement, the first ball can roll on the surface of the part, thereby realizing rapid measurement of the wall thickness at different points on the part, making the operation more convenient and helping to improve the detection efficiency. In addition, there is rolling friction between the first ball and the surface of the part, so it is not easy for the first ball to scratch the surface of the part when rolling, which helps to ensure the quality of the finished product.

[0011] Optionally, a holding rod is fixedly connected to the shell.

[0012] By adopting the above technical solution, after the first balls on the two connecting columns are pressed against the two sides of the part, the holding rod can be held, and then the wall thickness measuring tool can be driven to move along the surface of the part as a whole. There is no need to hold the handle during the movement, thereby avoiding the influence of accidental rotation of the handle on the accuracy of the measurement result.

[0013] Optionally, both mounting blocks are provided with an abutment assembly, the abutment assembly comprising a support rod, an abutment member and a third spring, the support rod is slidably connected to the mounting block, the sliding direction of the support rod is parallel to the sliding direction of the connecting column, the abutment member is arranged at the end of the support rod, the third spring is connected between the abutment member and the mounting block, and the third spring is used to drive the abutment member to press against the surface of the part to be measured.

[0014] By adopting the above technical solution, during the wall thickness measurement process, the abutment is pressed against the surface of the part, and visual observation shows that there is no gap between the abutment and the surface of the part, which indicates that the sliding direction of the connecting column is parallel to the wall thickness direction of the part, thereby helping to ensure the accuracy of the measurement results.

[0015] Optionally, a second ball is provided on the abutting member, and the second ball is used to abut against the surface of the part to be measured.

[0016] By adopting the above technical solution, the friction between the second ball and the surface of the part is rolling friction, thereby reducing the possibility of scratching the surface of the part.

[0017] Optionally, a cavity is provided inside the abutment member, an exhaust port is provided on the abutment member, an exhaust member is provided on the shell, an exhaust member is connected to an exhaust pipe on the air outlet side of the exhaust member, and the exhaust pipe is connected to the cavity inside the abutment member.

[0018] By adopting the above technical scheme, the exhaust member blows air into the cavity inside the abutment member through the exhaust pipe, and the wind in the cavity inside the abutment member is discharged through the exhaust port, thereby blowing on the surface of the part, and impurities attached to the surface of the part can be blown off, thereby reducing the influence of the impurities on the detection result; the blown wind can also accelerate the heat dissipation of the surface of the part and the first ball and the second ball, thereby avoiding the adverse effect of the increase in the surface temperature of the ball due to multiple continuous measurements on the detection result; since the second ball is provided on the abutment member, the end of the abutment member and the surface of the part to be measured are arranged at a distance, so that the wind in the cavity inside the abutment member can be better discharged from the exhaust port, thereby ensuring the heat dissipation effect.

[0019] Optionally, a wire clamp is provided on the connecting rod, and the exhaust pipe is passed through the wire clamp.

[0020] By adopting the above technical solution, the position of the exhaust duct can be restricted, thereby preventing the exhaust duct from causing adverse effects on subsequent detection processes.

[0021] Optionally, the abutment member is arranged in a circular ring shape, and the abutment member is sleeved on the outer side of the connecting column.

[0022] By adopting the above technical solution, since the abutment piece is sleeved on the outside of the connecting column, it is easy to observe whether there is a gap between the abutment piece and the surface of the part.

[0023] Optionally, a plurality of exhaust vents are provided, and the exhaust vents are arranged in a circular array.

[0024] The adoption of the above technical solution helps to enhance the blowing effect, thereby ensuring the cleaning effect and cooling effect.

[0025] In summary, this application includes the following beneficial technical effects: 1. Press the two connecting posts against the surfaces on both sides of the part to detect the wall thickness of the part. The wall thickness measurement process does not require cutting the part, which helps to ensure the integrity of the part and reduce waste.

[0026] 2. The first ball at the end of the connecting column is pressed against the surface of the part. By moving the wall thickness measuring tool as a whole, the first ball can be rolled. The first ball is always pressed against the surface of the part, thereby realizing continuous wall thickness measurement of multiple different points on the surface of the part, which helps to improve the detection efficiency.

[0027] 3. The abutment member blows air toward the surface of the part, which can remove impurities attached to the surface of the part, thereby reducing the influence of impurities on the measurement accuracy; the blown air can also accelerate the heat dissipation of the surface of the part and the first ball and the second ball, thereby reducing the adverse effects of thermal expansion and contraction on the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a cross-sectional view of an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of one of the handles in the embodiment of the present application; Figure 4 yes Figure 2 A magnified schematic diagram of center A.

[0029] 1. Support mechanism; 11. Shell; 12. Connecting rod; 13. Driving assembly; 131. Handle; 1311. Connecting part; 13111. Stop block; 1312. Holding part; 132. Second spring; 2. Detection mechanism; 21. Mounting block; 211. Accommodating groove; 212. Connecting block; 22. Connecting column; 221. Anti-drop block; 23. First spring; 24. Distance measuring sensor; 3. Indicator; 4. First ball; 5. Holding rod; 6. Abutment assembly; 61. Support rod; 611. Protrusion; 62. Abutment member; 621. Exhaust port; 63. Third spring; 7. Second ball; 8. Exhaust member; 9. Exhaust duct; 10. Wire clamp; 14. Parts. DETAILED DESCRIPTION

[0030] The following combination Figure 1-Figure 4 This application is described in further detail.

[0031] The present application embodiment discloses a wall thickness measurement tool. Figure 1 , Figure 2 and Figure 3 The wall thickness measuring tool includes a supporting mechanism 1, a detecting mechanism 2 and an indicator 3. The supporting mechanism 1 includes a housing 11, a connecting rod 12 and a driving assembly 13. The connecting rod 12 and the driving assembly 13 are respectively arranged on both sides of the housing 11, and two connecting rods 12 are provided and arranged in parallel at intervals; the connecting rod 12 is slidably provided on the housing 11, and the sliding directions of the two connecting rods 12 are opposite. The driving assembly 13 includes a handle 131 and a second spring 132; two handles 131 are provided and correspond to the two connecting rods 12 respectively. The handle 131 includes a connecting portion 1311 and a gripping portion 1312; the connecting portion 1311 is slidably provided in the housing 11, and one end of the connecting portion 1311 is vertically fixedly connected to the corresponding connecting rod 12; the other end of the connecting portion 1311 is vertically fixedly connected to the gripping portion 1312. Therefore, by pinching the gripping portion 1312, so that the two gripping portions 1312 slide toward the side close to each other, the two connecting rods 12 can slide toward the side away from each other. The second spring 132 is located in the housing 11 . The second spring 132 is fixedly connected between the two gripping portions 1312 . The second spring 132 is in a compressed state. The second spring 132 makes the two gripping portions 1312 tend to slide away from each other.

[0032] Reference Figure 2 and Figure 4 , the detection mechanism 2 is provided with two groups, which are respectively arranged on the side where the two connecting rods 12 are close to each other. The detection mechanism 2 includes a mounting block 21, a connecting column 22, a first spring 23 and a distance sensor 24. The mounting block 21 is fixedly connected to the end of the connecting rod 12 away from the handle 131. A receiving groove 211 is provided on the mounting block 21, and one end of the connecting column 22 is slidably connected to the receiving groove 211. The first spring 23 is fixedly connected between the end of the connecting column 22 and the inner wall of the receiving groove 211. The first spring 23 is in a compressed state, so that the first spring 23 makes the connecting column 22 have a tendency to slide to the outside of the receiving groove 211. The distance sensor 24 is an infrared distance sensor. The distance sensor 24 is fixedly connected to the receiving groove 211. The detection end of the distance sensor 24 faces the connecting column 22. The distance sensor 24 can detect the distance between its own detection end and the end of the connecting column 22.

[0033] One end of the connecting column 22 located in the receiving groove 211 is fixedly connected to an anti-dropping block 221, and the anti-dropping block 221 can prevent the connecting column 22 from directly sliding out of the receiving groove 211. One end of the connecting portion 1311 located outside the housing 11 is fixedly connected to a stopper 13111, and in the initial state, the stopper 13111 is pressed against the outer wall of the housing 11 under the action of the second spring 132. When the thickness measurement is not performed, the stopper 13111 is pressed against the outer wall of the housing 11, and the anti-dropping block 221 is pressed against the end of the receiving groove 211. At this time, the ends of the two connecting columns 22 are pressed against each other, and the distance measuring sensor 24 can detect the distance between its own detection end and the corresponding connecting column 22.

[0034] When measuring the wall thickness of the part 14, the two gripping parts 1312 are slid toward the side close to each other, so that the two connecting rods 12 are separated from each other, and the two connecting posts 22 are separated from each other; then the part to be measured of the part 14 to be measured is placed between the two connecting posts 22, and the gripping part 1312 is released. The second spring 132 makes the two connecting rods 12 close to each other, so that the two connecting posts 22 are close to each other, until the ends of the two connecting posts 22 are respectively pressed against the surfaces on both sides of the part 14. At this time, the connecting post 22 slides a distance relative to the receiving groove 211, and the distance sensor 24 can detect the distance between its own detection end and the end of the corresponding connecting post 22. A single-chip microcomputer is also fixedly arranged on the housing 11, and the single-chip microcomputer is electrically connected to the two distance sensors 24 respectively; the digital indicator 3 is fixedly arranged on the housing 11, and the digital indicator 3 is electrically connected to the single-chip microcomputer.

[0035] Therefore, the single chip microcomputer can record the detection value of the distance measuring sensor 24 before and after the thickness measurement, and then calculate the difference between the two values ​​to obtain the rebound distance of the connecting column 22 during the thickness measurement process; then calculate the sum of the rebound distances of the two connecting columns 22, and the sum of the distances is the thickness of the measuring part of the part to be measured 14, and then display this thickness value on the indicator 3, thereby completing the wall thickness measurement.

[0036] The first balls 4 are provided at the ends of the two connecting columns 22 close to each other, and the first balls 4 can roll. In the initial state, the two first balls 4 abut against each other. When measuring thickness, the first spring 23 makes the two first balls 4 abut against the two sides of the part 14, respectively. At this time, the wall thickness measuring tool is moved as a whole to change the thickness measuring point, thereby realizing the rapid measurement of the thickness at different positions on the part 14.

[0037] Reference Figure 1 Furthermore, a holding rod 5 is fixedly connected to the housing 11, so by holding the holding rod 5, the wall thickness measuring tool can be driven to move as a whole, which is more convenient.

[0038] Reference Figure 3 and Figure 4, each mounting block 21 is provided with an abutment assembly 6, and the abutment assembly 6 includes a support rod 61, an abutment member 62 and a third spring 63. The support rod 61 is arranged along the length direction of the mounting block 21, and a connecting block 212 is fixedly connected to the mounting block 21, and the support rod 61 is slidably inserted into the connecting block 212. The abutment member 62 is fixedly connected to the end of the support rod 61. The third spring 63 is fixedly connected between the abutment member 62 and the connecting block 212, and the third spring 63 is in a compressed state. A protrusion 611 is fixedly connected to one end of the support rod 61 away from the abutment member 62. Under normal conditions, the third spring 63 makes the protrusion 611 abut against the connecting block 212, and at this time, the two abutment members 62 are in a state of abutting each other.

[0039] When measuring the wall thickness, the two abutment members 62 can be pressed against the two sides of the part 14 respectively. At this time, it is only necessary to make the surface of the abutment member 62 fit the surface of the part 14 so that the sliding direction of the connecting column 22 can be parallel to the wall thickness direction of the part 14, thereby ensuring the accuracy of the measurement.

[0040] Furthermore, a second ball 7 is provided on the side where the two abutments 62 are close to each other. There are multiple second balls 7 arranged in a circular array, thereby reducing the friction between the abutments 62 and the surface of the part 14, thereby reducing the possibility of damaging the surface of the part 14.

[0041] Reference Figure 1 and Figure 4 In addition, the abutment member 62 is arranged in a circular ring shape, and the abutment member 62 is sleeved on the outer side of the connecting column 22. A cavity is arranged inside the abutment member 62, and an exhaust port 621 is arranged on the abutment member 62. There are multiple exhaust ports 621 arranged in a circular array. An exhaust member 8 is fixedly connected to the housing 11. The exhaust member 8 is a micro fan. An exhaust pipe 9 is connected to the air outlet side of the exhaust member 8. One end of the exhaust pipe 9 away from the exhaust member 8 is fixedly connected to the abutment member 62, and the exhaust pipe 9 is connected to the cavity inside the abutment member 62. Therefore, the exhaust member 8 can blow air into the cavity inside the abutment member 62 through the exhaust pipe 9, and then the wind in the cavity inside the abutment member 62 is discharged through the exhaust port 621, thereby blowing and cooling the surface of the part 14, and taking away the heat generated when the first ball 4 and the second ball 7 roll, which helps to accelerate the heat dissipation of the surface of the part 14, the first ball 4 and the second ball 7, thereby ensuring the accuracy of the test results.

[0042] Reference Figure 1 A wire clamp 10 is also fixedly connected to the connecting rod 12, and a plurality of wire clamps 10 are provided. The exhaust pipe 9 is a hose, and the exhaust pipe 9 is passed through the wire clamp 10. Therefore, the provision of the exhaust pipe 9 is not likely to cause adverse effects on the wall thickness measurement process.

[0043] The implementation principle of the wall thickness measuring tool of the embodiment of the present application is as follows: holding the two holding parts 1312, and sliding the two holding parts 1312 toward the side close to each other, the two connecting rods 12 can be slid toward the side away from each other, and the two connecting posts 22 are moved away from each other. Then the part 14 to be measured is placed between the two connecting posts 22, and the holding parts 1312 are released, and the second spring 132 brings the two connecting rods 12 closer to each other, until the first balls 4 at the ends of the two connecting posts 22 are respectively pressed against the surfaces on both sides of the part to be measured of the part 14. Before the part 14 is placed between the two connecting posts 22, the distance sensor 24 can detect the distance a between its own detection end and the end of the connecting post 22; after the two connecting posts 22 are respectively pressed against the two sides of the part 14, the distance sensor 24 can detect the distance b between its own detection end and the end of the connecting post 22; the single chip microcomputer calculates the difference c between the distance a and the distance b, and the difference c can represent the thickness of the part to be measured of the part 14, and displays the value of c in real time on the indicator 3, thereby completing the wall thickness measurement.

[0044] Since the value of distance a is fixed, when the handheld holding rod 5 drives the wall thickness measuring tool to move as a whole, the wall thickness of different points of the part 14 can be measured. At this time, the value of distance b is constantly changing, so the value of the difference c between distance a and distance b changes in real time; therefore, only the wall thickness measuring tool needs to be moved to display the wall thickness of the measuring part of the part 14 on the indicator 3, thereby realizing the rapid measurement of the wall thickness of multiple points on the part 14.

[0045] During the wall thickness measurement process, the second ball 7 is pressed against the surface of the part 14, and the wind exhausted by the exhaust member 8 can flow out through the exhaust port 621 on the abutment member 62, thereby blowing air to the surface of the part 14. On the one hand, it can remove impurities on the surface of the part 14, and on the other hand, it can accelerate the heat dissipation of the surface of the part 14, the first ball 4 and the second ball 7, thereby ensuring the accuracy of the measurement result.

[0046] The above are optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wall thickness measuring tool, characterized in that: include: A support mechanism (1) comprises a housing (11), a connecting rod (12) and a driving assembly (13), wherein two connecting rods (12) are provided and are arranged in parallel with each other at an interval, the connecting rod (12) is slidably connected to the housing (11), and the driving assembly (13) is used to drive the two connecting rods (12) to slide in opposite directions; The detection mechanism (2) is provided with two groups, which are respectively provided on the sides of the two connecting rods (12) close to each other. The detection mechanism (2) comprises a mounting block (21), a connecting column (22), a first spring (23) and a distance measuring sensor (24). The mounting block (21) is provided on the connecting rod (12). One end of the connecting column (22) is slidably connected to the mounting block (21). The other end of the connecting column (22) is used to abut against the part to be detected (14). The first spring (23) is connected to the connecting column. (22) and the mounting block (21), the first spring (23) causing the connecting column (22) to have a tendency to slide toward the outside of the mounting block (21), the distance sensor (24) being arranged in the mounting block (21), the distance sensor (24) and the connecting column (22) being arranged at intervals, the ends of the two connecting columns (22) being butted against each other when the thickness is not measured, and the two connecting columns (22) being respectively pressed against two sides of the part to be measured (14) when the thickness is measured, and the distance sensor (24) detecting the rebound distance of the connecting column (22); A digital indicator (3) is arranged on the housing (11), the digital indicator (3) is electrically connected to the distance measuring sensor (24), and the digital indicator (3) is used to display the sum of the rebound distances of the two connecting columns (22).

2. A wall thickness measuring tool according to claim 1, characterized in that: The driving assembly (13) comprises a handle (131) and a second spring (132). Two handles (131) are provided. Each of the handles (131) is fixedly connected to a connecting rod (12), so that when one end of the two handles (131) away from the connecting rod (12) slides toward a side approaching each other, the two connecting rods (12) slide toward a side away from each other. The second spring (132) is connected between the two handles (131). The second spring (132) causes one end of the two handles (131) away from the connecting rod (12) to have a tendency to slide toward a side away from each other.

3. A wall thickness measuring tool according to claim 2, characterized in that: A first ball (4) is provided at one end of the two connecting columns (22) that is close to each other, and the first ball (4) is used to abut against the surface of the part (14) to be tested.

4. A wall thickness measuring tool according to claim 3, characterized in that: A holding rod (5) is fixedly connected to the housing (11).

5. A wall thickness measuring tool according to claim 1, characterized in that: Both mounting blocks (21) are provided with an abutment assembly (6), the abutment assembly (6) comprising a support rod (61), an abutment member (62) and a third spring (63), the support rod (61) being slidably connected to the mounting block (21), the sliding direction of the support rod (61) being parallel to the sliding direction of the connecting column (22), the abutment member (62) being arranged at an end of the support rod (61), the third spring (63) being connected between the abutment member (62) and the mounting block (21), and the third spring (63) being used for driving the abutment member (62) to abut against the surface of the part to be measured (14).

6. A wall thickness measuring tool according to claim 5, characterized in that: The abutment member (62) is provided with a second rolling ball (7), and the second rolling ball (7) is used to abut against the surface of the part to be tested (14).

7. A wall thickness measuring tool according to claim 6, characterized in that: A cavity is provided inside the abutment member (62), an exhaust port (621) is provided on the abutment member (62), an exhaust member (8) is provided on the shell (11), an exhaust pipe (9) is connected to the air outlet side of the exhaust member (8), and the exhaust pipe (9) is in communication with the cavity inside the abutment member (62).

8. A wall thickness measuring tool according to claim 7, characterized in that: A wire clamp (10) is provided on the connecting rod (12), and the exhaust pipe (9) is passed through the wire clamp (10).

9. A wall thickness measuring tool according to claim 7, characterized in that: The abutment member (62) is arranged in a circular ring shape, and the abutment member (62) is sleeved on the outer side of the connecting column (22).

10. A wall thickness measuring tool according to claim 9, characterized in that: A plurality of the air outlets (621) are provided, and the air outlets (621) are arranged in a circular array.

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