Sleeve inner diameter detection device

Abstract

The utility model relates to the technical field of sleeve quality detection, and discloses a sleeve inner diameter detection device which comprises a flat leaning plate, a column body is embedded in the upper surface of the flat leaning plate, a central column is arranged in the column body, a measuring assembly is arranged on the surface of the central column, and a sleeve clamping assembly is arranged on the lower surface of the flat leaning plate. The sleeve clamping assembly comprises a connecting cylinder fixedly installed on the lower surface of the leaning flat plate. According to the sleeve inner diameter detection device, the clamping sleeve is rotated, the clamping sleeve and the connecting cylinder are mutually extruded, the sleeve body is clamped at the bottom side position close to the flat plate, the cylinder and the central cylinder are kept in the state of being perpendicular to the end face of the sleeve, at the moment, the bottom side of the central cylinder extends into the sleeve body, and the threaded column is driven to rotate by rotating the round handle; when the measuring supporting foot abuts against the inner wall of the sleeve body, the surface arrangement of the ruler body is read through the reading window, and the purpose of accurately measuring the inner diameter of the sleeve can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of sleeve quality inspection technology, and more specifically to a sleeve inner diameter inspection device. Background Technology

[0002] Fasteners are widely used mechanical connection parts. Their main function is to mechanically fix or bond two or more parts together, ensuring the safe connection of mechanical parts and the normal operation of equipment. Fastener sleeves are a type of fastener, and their main body is mostly a hollow cylindrical structure. During the production of sleeves, the inner diameter of the sleeve needs to be tested to ensure that it can be connected with other fasteners later.

[0003] Currently, the inner diameter of sleeves is usually measured using a three-jaw inside micrometer. However, when using a three-jaw inside micrometer to measure sleeves, it is necessary to precisely maintain the body of the three-jaw inside micrometer perpendicular to the measuring plane to ensure the accuracy of the measurement results. Since sleeves are generally continuous from top to bottom, when measuring the inner diameter of the middle section of the sleeve, there is no function to level the three-jaw inside micrometer. Therefore, the operator's experience and intuition are required to adjust the position of the three-jaw inside micrometer, which makes the measurement difficult and makes it hard to guarantee the accuracy of the inner diameter measurement.

[0004] In view of this, the present invention proposes a sleeve inner diameter detection device with low operation difficulty to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sleeve inner diameter detection device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a sleeve inner diameter detection device, including a plate, a column is embedded in the upper surface of the plate, a central column is provided inside the column, a measuring component is provided on the surface of the central column, and a sleeve clamping component is provided on the lower surface of the plate.

[0007] The sleeve clamping assembly includes a connecting sleeve fixedly installed on the lower surface of the flat plate. The inner wall of the connecting sleeve is provided with an internal thread. The bottom end of the connecting sleeve is threadedly connected to a clamping sleeve. The clamping sleeve is a hollow frustoconical shape. The inner ring surface of the clamping sleeve is provided with a sleeve body. The top of the sleeve body is in close contact with the lower surface of the flat plate.

[0008] The measuring assembly includes a threaded post threaded to the top of a central post. The top of the threaded post has a round handle, and the bottom of the round handle has an annular limiting groove. A limiting block is slidably connected inside the annular limiting groove. A ruler is fixedly installed at the bottom of the limiting block. A reading window is opened on the surface of the central post corresponding to the scale on the surface of the ruler. The ruler is inserted into the top of the central post. An installation cavity is opened inside the central post. Three protruding grooves are arranged in a circumferential array on the surface of the central post. The protruding grooves are connected to the installation cavity. A measuring foot is slidably connected inside the protruding groove. The bottom of the threaded post extends into the installation cavity and is rotatably connected to a clamping block that drives the measuring foot to move outward from the protruding groove.

[0009] As a further description of the above technical solution: the clamping sleeve is made of rubber, and the outer wall of the bottom side of the clamping sleeve is provided with anti-slip texture; by setting the anti-slip texture, the friction force when rotating the clamping sleeve can be increased, making it convenient for the operator to rotate the clamping sleeve.

[0010] As a further description of the above technical solution: the bottom end of the clamping block is provided with a first inclined surface, and the surface of the measuring support foot is provided with a second inclined surface, the positions of the first inclined surface and the second inclined surface are corresponding.

[0011] As a further description of the above technical solution: an iron block is embedded on the side of the measuring foot near the central axis of the central column, and a magnetic column is fixedly installed on the inner bottom wall of the mounting cavity. The magnetic force of the magnetic column acts on the surface of the iron block. By setting the magnetic column and the iron block, when the driving clamping block moves upward away from the measuring foot, the measuring foot can be driven to move into the extension groove under the magnetic force of the magnetic column and the iron block, which is convenient for storage.

[0012] As a further description of the above technical solution: a wear-resistant block is threadedly connected to the side of the measuring foot away from the central axis of the central column; by setting the wear-resistant block and the threaded connection between the wear-resistant block and the measuring foot, wear of the measuring foot can be avoided, and the wear-resistant block can be replaced after it is damaged.

[0013] As a further description of the above technical solution: the central column is slidably connected to the surface of the column body, and a connecting ring is rotatably connected to the outer wall of the column body. A locking screw is threadedly connected to the surface of the connecting ring, and an opening is provided on the outer wall of the column body for the locking screw to move. By sliding the central column to the surface of the column body, after the flat plate and the sleeve body are brought together and locked, the measurement depth can be adjusted by sliding the central column up and down. Furthermore, by locking the central column to the outer wall of the column body with the locking screw, the position of the central column can be located.

[0014] As a further description of the above technical solution: the outer wall of the column is provided with depth scale lines corresponding to the opening; by setting the depth scale lines, the measurement depth of the central column can be accurately marked.

[0015] As a further description of the above technical solution: a disc is rotatably connected to the bottom end of the round handle, and the top end of the threaded column is fixedly installed at the bottom end of the disc. Several circular grooves are opened on the surface of the disc. A top ball is movably installed on the inner wall of the round handle, and the top ball is locked inside the circular groove. A support spring is provided on the inner wall of the round handle to drive the top ball to lock with the circular groove. When the round handle is rotated to drive the threaded column to rotate, the support spring drives the top ball to lock with the circular groove, which can flexibly position the round handle and the threaded column. After the measuring foot is pressed against the inner wall of the sleeve body, the top ball can slide out inside the circular groove, which can avoid the situation of excessive rotation of the round handle causing structural deformation and ensure the safety of the overall detection device.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. Compared with existing technologies, this sleeve inner diameter measuring device, when measuring the sleeve body, places the plate against the end face of the sleeve body, and then, by rotating the clamping sleeve, the clamping sleeve and the connecting sleeve squeeze each other to clamp the sleeve body at the bottom side of the plate, keeping the column and the central column perpendicular to the end face of the sleeve. At this time, the bottom side of the central column extends into the interior of the sleeve body. By rotating the round handle, the threaded column is driven to rotate, which in turn drives the pressing block to squeeze the measuring foot. When the measuring foot is pressed against the inner wall of the sleeve body, the scale surface setting is read through the reading window, thus achieving the purpose of accurately measuring the inner diameter of the sleeve. Since the end face of the sleeve body is leveled by the plate during the measurement process, ensuring that the central column remains perpendicular to the end face of the sleeve, there is no need to rely on experience and feeling to adjust the position of the central column, reducing the difficulty of detection and ensuring the accuracy of detection.

[0018] 2. Compared with the prior art, this sleeve inner diameter detection device, by setting anti-slip texture, can improve the friction when rotating the clamping sleeve, making it easier for the operator to tighten the clamping sleeve; by setting magnetic column and iron block, when the driving abutment block moves upward away from the measuring foot, the magnetic force of the magnetic column and iron block can drive the measuring foot to move into the extension groove; by setting wear-resistant block, and the wear-resistant block is threadedly connected to the measuring foot, wear of the measuring foot can be avoided, and the wear-resistant block can be replaced after it is damaged.

[0019] 3. Compared with the prior art, this sleeve inner diameter detection device uses a central column that is slidably connected to the surface of the column body. After the flat plate is brought into contact with and locked to the sleeve body, the central column can be slid up and down to adjust the measurement depth. The central column can be positioned by locking it to the outer wall of the column body with a locking screw. The measurement depth of the central column can be accurately marked by setting depth scale lines. When the rotating handle drives the threaded column to rotate, the support spring drives the top ball to lock into the circular groove, which can flexibly position the handle and the threaded column. After the measuring foot is pressed against the inner wall of the sleeve body, the top ball can slide out inside the circular groove, which can avoid excessive rotation of the handle and cause structural deformation, thus ensuring the safety of the overall detection device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the central column of this utility model in cross-section;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the orthographic section of the circular handle of this utility model;

[0024] Figure 5 This is a three-dimensional cross-sectional view of the connecting cylinder under measurement conditions of this utility model.

[0025] The attached diagram is labeled as follows: 1. Flat plate; 2. Column; 3. Center column; 4. Connecting cylinder; 5. Clamping sleeve; 6. Sleeve body; 7. Threaded column; 8. Round handle; 9. Limiting block; 10. Ruler body; 11. Reading window; 12. Measuring foot; 13. Clamping block; 14. Anti-slip texture; 15. First inclined plane; 16. Second inclined plane; 17. Iron block; 18. Magnetic column; 19. Wear-resistant block; 20. Connecting ring; 21. Locking screw; 22. Opening; 23. Depth scale line; 24. Disc; 25. Circular groove; 26. Top ball; 27. Support spring. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The sleeve inner diameter detection device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] ReferenceFigures 1 to 5 This utility model provides a sleeve inner diameter detection device, including a plate 1, a column 2 embedded on the upper surface of the plate 1, and a central column 3 disposed inside the column 2.

[0028] A measuring component is provided on the surface of the central column 3, and a sleeve clamping component is provided on the lower surface of the plate 1.

[0029] The sleeve clamping assembly includes a connecting sleeve 4 fixedly installed on the lower surface of the plate 1. The inner wall of the connecting sleeve 4 is provided with an internal thread. The bottom end of the connecting sleeve 4 is threadedly connected to a clamping sleeve 5. The clamping sleeve 5 is a hollow frustoconical shape. The inner ring surface of the clamping sleeve 5 is provided with a sleeve body 6. The top of the sleeve body 6 is in close contact with the lower surface of the plate 1.

[0030] When measuring the inner diameter of the sleeve, the device presses the plate 1 against the end face of the sleeve body 6, and then clamps the sleeve body 6 at the bottom side of the plate 1 by rotating the clamping sleeve 5 and pressing the clamping sleeve 5 and the connecting sleeve 4 against each other. At this time, the column 2 and the central column 3 are automatically perpendicular to the end face of the sleeve body 6, and the central axis of the central column 3 coincides with the central axis of the sleeve body 6.

[0031] The clamping sleeve 5 is made of rubber, and the outer wall of the bottom side of the clamping sleeve 5 is provided with anti-slip texture 14.

[0032] By setting anti-slip texture 14, the friction force when rotating the clamping sleeve 5 can be increased, making it easier for the operator to rotate the clamping sleeve 5.

[0033] The measuring assembly includes a threaded post 7 threaded to the top of the central post 3. A round handle 8 is provided at the top of the threaded post 7. An annular limiting groove is provided at the bottom of the round handle 8. A limiting block 9 is slidably connected inside the annular limiting groove. A ruler 10 is fixedly installed at the bottom of the limiting block 9. A reading window 11 is provided on the surface of the central post 3 corresponding to the scale on the surface of the ruler 10. The ruler 10 is inserted into the top of the central post 3. An installation cavity is provided inside the central post 3. Three protruding grooves are arranged in a circumferential array on the surface of the central post 3. The protruding grooves are connected to the installation cavity. A measuring foot 12 is slidably connected inside the protruding groove. The bottom of the threaded post 7 extends into the installation cavity and is rotatably connected to a clamping block 13 that drives the measuring foot 12 to move outward from the protruding groove.

[0034] The bottom end of the clamping block 13 is provided with a first inclined surface 15, and the surface of the measuring support leg 12 is provided with a second inclined surface 16. The positions of the first inclined surface 15 and the second inclined surface 16 are corresponding.

[0035] It is worth noting that by pressing and locking the flat plate 1 against the end face of the sleeve body 6, the bottom side of the central column 3 extends into the interior of the sleeve body 6. By rotating the round handle 8, the threaded column 7 is driven to rotate, which in turn drives the pressing block 13 to press against the measuring foot 12. When the measuring foot 12 is pressed against the inner wall of the sleeve body 6, the surface setting of the scale body 10 is read through the reading window 11, thus achieving the purpose of accurately measuring the inner diameter of the sleeve body 6.

[0036] It is worth noting that, during the measurement process, the end face of the sleeve body 6 is leveled using the flat plate 1, ensuring that the center column 3 remains perpendicular to the end face of the sleeve body 6. This eliminates the need to rely on experience and intuition to adjust the position of the center column 3, reducing the difficulty of the inspection and ensuring the accuracy of the inspection.

[0037] An iron block 17 is embedded on the side of the measuring support 12 near the central axis of the central column 3. A magnetic column 18 is fixedly installed on the inner bottom wall of the mounting cavity, and the magnetic force of the magnetic column 18 acts on the surface of the iron block 17.

[0038] By setting up the magnetic column 18 and the iron block 17, when the drive block 13 moves upward away from the measuring foot 12, the magnetic force of the magnetic column 18 and the iron block 17 can drive the measuring foot 12 to move into the extension slot, which is convenient for subsequent storage.

[0039] The measuring support 12 has a wear-resistant block 19 threadedly connected to the side away from the central axis of the central column 3.

[0040] By setting a wear-resistant block 19 and threading a wear-resistant block 19 to the measuring foot 12, the wear of the measuring foot 12 can be reduced by using the wear-resistant block 19, and the wear-resistant block 19 can be replaced after it is damaged.

[0041] The central column 3 is slidably connected to the surface of the column 2, and the outer wall of the column 2 is rotatably connected to the connecting ring 20. The surface of the connecting ring 20 is threadedly connected to the locking screw 21, and the outer wall of the column 2 has an opening 22 for the locking screw 21 to move.

[0042] The sleeve inner diameter detection device is slidably connected to the surface of the column 2 via the central column 3. After the flat plate 1 is brought close to and locked to the sleeve body 6, the measurement depth can be adjusted by sliding the central column 3 up and down. It is highly practical. Furthermore, by rotating the locking screw 21 to lock it to the outer wall of the column 2, the position of the central column 3 can be located.

[0043] The outer wall of column 2 has depth scale lines 23 corresponding to the opening 22.

[0044] By setting depth scale line 23, the measurement depth of the central column 3 can be accurately marked.

[0045] The bottom end of the round handle 8 is rotatably connected to the disc 24, the top end of the threaded column 7 is fixedly installed at the bottom end of the disc 24, the surface of the disc 24 is provided with several round grooves 25, the inner wall of the round handle 8 is movably installed with a top ball 26, the top ball 26 is locked inside the round groove 25, and the inner wall of the round handle 8 is provided with a support spring 27 to drive the top ball 26 to lock with the round groove 25.

[0046] It is worth noting that when the rotating handle 8 drives the threaded column 7 to rotate, the support spring 27 drives the top ball 26 to lock into the circular groove 25, which can flexibly position the handle 8 and the threaded column 7. After the measuring foot 12 is pressed against the inner wall of the sleeve body 6, the top ball 26 can slide out inside the circular groove 25, which can avoid the situation of excessive rotation of the handle 8 causing structural deformation and ensure the safety of the overall testing device.

[0047] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A sleeve inner diameter detection device, comprising a plate (1), characterized in that: The upper surface of the flat plate (1) is fitted with a column (2), the inside of the column (2) is provided with a central column (3), the surface of the central column (3) is provided with a measuring component, and the lower surface of the flat plate (1) is provided with a sleeve clamping component. The sleeve clamping assembly includes a connecting sleeve (4) fixedly installed on the lower surface of the plate (1). The inner wall of the connecting sleeve (4) is provided with an internal thread. The bottom end of the connecting sleeve (4) is threadedly connected to a clamping sleeve (5). The clamping sleeve (5) is a hollow frustum shape. The inner ring surface of the clamping sleeve (5) is provided with a sleeve body (6). The top of the sleeve body (6) is close to the lower surface of the plate (1). The measuring assembly includes a threaded column (7) threaded to the top of the central column (3), a round handle (8) on the top of the threaded column (7), an annular limiting groove at the bottom of the round handle (8), a limiting block (9) slidably connected inside the annular limiting groove, a ruler (10) fixedly installed at the bottom of the limiting block (9), a reading window (11) corresponding to the scale on the surface of the ruler (10) on the surface of the central column (3), the ruler (10) inserted into the top of the central column (3), an installation cavity inside the central column (3), three protruding grooves in a circular array on the surface of the central column (3), the protruding grooves communicating with the installation cavity, a measuring leg (12) slidably connected inside the protruding groove, and a clamping block (13) extending from the bottom of the threaded column (7) into the installation cavity and rotatably connected to drive the measuring leg (12) to move out of the protruding groove.

2. The sleeve inner diameter detection device according to claim 1, characterized in that: The clamping sleeve (5) is made of rubber, and the outer wall of the bottom side of the clamping sleeve (5) is provided with anti-slip texture (14).

3. The sleeve inner diameter detection device according to claim 1, characterized in that: The bottom end of the clamping block (13) is provided with a first inclined surface (15), and the surface of the measuring support (12) is provided with a second inclined surface (16). The positions of the first inclined surface (15) and the second inclined surface (16) are corresponding.

4. The sleeve inner diameter detection device according to claim 1, characterized in that: The measuring support (12) has an iron block (17) embedded on one side near the central axis of the central column (3), and a magnetic column (18) is fixedly installed on the inner bottom wall of the mounting cavity. The magnetic force of the magnetic column (18) acts on the surface of the iron block (17).

5. The sleeve inner diameter detection device according to claim 1, characterized in that: The measuring foot (12) is threaded with a wear-resistant block (19) on the side away from the central axis of the central column (3).

6. The sleeve inner diameter detection device according to claim 1, characterized in that: The central column (3) is slidably connected to the surface of the column (2), and the outer wall of the column (2) is rotatably connected to a connecting ring (20). The surface of the connecting ring (20) is threadedly connected to a locking screw (21), and the outer wall of the column (2) has an opening (22) for the locking screw (21) to move.

7. The sleeve inner diameter detection device according to claim 6, characterized in that: The outer wall of the column (2) has depth scale lines (23) corresponding to the opening (22).

8. The sleeve inner diameter detection device according to claim 1, characterized in that: The bottom end of the round handle (8) is rotatably connected to a disc (24), the top end of the threaded column (7) is fixedly installed at the bottom end of the disc (24), the surface of the disc (24) is provided with several round grooves (25), the inner wall of the round handle (8) is movably installed with a top ball (26), the top ball (26) is locked inside the round groove (25), and the inner wall of the round handle (8) is provided with a support spring (27) to drive the top ball (26) to lock with the round groove (25).

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