High-precision inner hole straightness detection equipment

Abstract

The invention relates to the technical field of inner hole straightness detection, and discloses high-precision inner hole straightness detection equipment which comprises a box body, a first limiting groove is formed in the box body, a sliding block is slidably connected to the interior of the box body, a detection meter is arranged at the top of the sliding block, and a connecting assembly is arranged at the bottom of the detection meter. The sliding block is slidably connected into the first limiting groove, an open hole is formed in the box body, a buffering assembly is arranged at the top of the sliding block, a clamping groove is formed in the sliding block, a disassembling assembly is arranged in the sliding block, a pull rod is fixedly connected to the outer wall of the sliding block, and an extension rod is in threaded connection with one end of the pull rod. According to the inner hole straightness detection device, the ejector rod is pinched to push the first clamping block into the mounting pin, the detection meter can be separated and pulled out from the sliding block through the mounting pin, the effect that the detection meter is convenient to disassemble and store is achieved, the problem that the detection meter and the shell are large in size and inconvenient to store and transport is solved, and the convenience of the inner hole straightness detection device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of inner hole straightness detection, in particular to high-precision inner hole straightness detection equipment. Background Art

[0002] Steel pipe is a common metal pipe, mainly made of steel, with good strength, toughness and corrosion resistance, and is widely used in construction, chemical industry, petroleum, machinery manufacturing, transportation, aviation and other fields. Steel pipes can be divided into many types according to their material, structure, purpose, etc. In order to accurately measure the shape, size and straightness of the inner hole and ensure that the product meets the design requirements, inner hole straightness detection equipment is needed.

[0003] After searching, the publication number CN113587859A discloses a deep hole straightness detection device, including a photoelectric autocollimator, a positioning sleeve, a reflective lens and a spindle assembly, one end of the photoelectric autocollimator is inserted into one end of the positioning sleeve, the other end of the positioning sleeve is inserted into the measured hole, the reflective lens is detachably connected to the side of one end of the spindle assembly, and the surface of the reflective lens is perpendicular to the axis of the spindle assembly. However, this patent only solves the problems existing in deep hole straightness detection in actual production, improves detection accuracy, reduces detection difficulty, and improves detection efficiency, but does not solve the problem that the detection table and the shell are large in size when stored, which is inconvenient to store and transport, affecting the convenience of the inner hole straightness detection device. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a high-precision inner hole straightness detection device, which solves the problem that the detection table and the shell are large in size when stored, which is inconvenient during storage and transportation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-precision inner hole straightness detection device, comprising a box body, a limiting groove 1 is provided inside the box body, a slider is slidably connected inside the box body, a detection table is provided on the top of the slider, a connecting component is provided on the bottom of the detection table, the slider is slidably connected inside the limiting groove 1, an opening is provided inside the box body, a buffer component is provided on the top of the slider, a card slot is provided inside the slider, a disassembly component is provided inside the slider, a pull rod is fixedly connected to the outer wall of the slider, and an extension rod is threadedly connected to one end of the pull rod; The disassembly assembly includes a second limit plate, which is slidably connected to the inside of the slider, and a push rod is fixedly connected to the inside of the second limit plate. The outer wall of the push rod is sleeved with a second spring, one end of the second spring is fixedly connected to one side of the second limit plate, and the other end of the second spring is fixedly connected to the inside of the slider.

[0006] Preferably, the connecting assembly includes a mounting pin, the top of the mounting pin is fixedly connected to the bottom of the detection table, the mounting pin is rotatably connected with a clamping block 1 inside, the clamping block 1 is rotatably connected with a connecting rod inside, the connecting rod is slidably connected inside the mounting pin, a telescopic rod is provided inside the mounting pin, the outer wall of the telescopic rod is sleeved with a first spring, the first spring and one end of the telescopic rod are both fixedly connected to the top of a limit plate 1, the first spring and the other end of the telescopic rod are both fixedly connected to the mounting pin, the clamping block 1 is engaged with the clamping groove, and the mounting pin is slidably connected to the inside of the slider.

[0007] Preferably, the buffer assembly comprises a rubber ring, the bottom of the rubber ring is fixedly connected to the top of the slider, and the top of the rubber ring is attached to the bottom of the test table.

[0008] Preferably, the bottom of the box body is threadedly connected with an adjusting leg, the outer wall of the adjusting leg is threadedly connected with a fastening bolt, and the top of the fastening bolt is in contact with the bottom of the box body.

[0009] Preferably, a connecting plate is provided inside the box body, a mounting groove is provided inside the box body, and a reinforcement groove and a mounting hole are provided inside the box body.

[0010] Preferably, an extension frame is provided on one side of the box body, a connecting plate is fixedly connected to one side of the extension frame, a second clamping block is fixedly connected to one side of the connecting plate, and a convex strip is fixedly connected to one side of the second clamping block.

[0011] Preferably, the connecting plate is slidably connected inside the second limiting groove, the second clamping block is embedded in the installation groove, and the convex strip is embedded in the reinforcement groove.

[0012] Preferably, a connecting plate is fixedly connected to one side of the extension frame, and the connecting plate is slidably connected inside the mounting hole.

[0013] The present invention provides a high-precision inner hole straightness detection device, which has the following beneficial effects: 1. The present invention pushes the card block into the interior of the installation pin by pinching the push rod, and then the test gauge can be separated and pulled out through the installation pin and the slider, so as to achieve the effect of facilitating the disassembly and storage of the test gauge, solves the problem that the test gauge and the shell are large in size and inconvenient in storage and transportation, and improves the convenience of the inner hole straightness detection equipment.

[0014] 2. The present invention allows the extension frame to slide into the second limiting groove through the connecting plate, and at the same time the extension frame is inserted into the installation hole through the connecting plate for positioning, and then the second clamping block on one side of the connecting plate is embedded in the installation groove, thereby achieving the effect of adapting to different pipe lengths, solving the problem of inconvenience in detection due to insufficient length of the equipment itself when detecting pipes of different lengths, and improving the adaptability of the inner hole straightness detection equipment.

[0015] 3. The present invention can adjust the horizontal position of the box body by screwing the adjusting legs out or in, and then tightening the fastening bolts to tightly fit the bottom of the box body to lock the adjusting legs, thereby achieving the effect of adjusting the horizontal position of the detection equipment, solving the problem that the detection table cannot contact the inner wall well when testing pipes of different diameters when placed in the pipeline for testing, and improving the practicality of the inner hole straightness detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the box body of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the slider of the present invention; Figure 5 It is a schematic diagram of the connecting plate structure of the present invention; Figure 6 for Figure 3 A schematic diagram of the partially enlarged structure at center A; Figure 7 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 8 for Figure 4 A schematic diagram of the partially enlarged structure at C in the middle; Fig. 9 for Figure 5 Schematic diagram of the local enlarged structure at point D in the middle.

[0017] Legend: 1. Box body; 2. Extension frame; 3. Limiting slot 1; 4. Slider; 5. Pull rod; 6. Test table; 7. Opening hole; 8. Mounting pin; 9. Block 1; 10. Connecting rod; 11. Limiting plate 1; 12. First spring; 13. Telescopic rod; 14. Rubber ring; 15. Limiting plate 2; 16. Push rod; 17. Second spring; 18. Adjusting leg; 19. Fastening bolt; 20. Mounting slot; 21. Reinforcement slot; 22. Connecting plate; 23. Block 2; 24. Raised strip; 25. Limiting slot 2; 26. Extension rod; 27. Slot; 28. Mounting hole; 29. ​​Connecting plate DETAILED DESCRIPTION The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please see attached Figure 1 , Attachment Figure 2 , Attachment Figure 4 , Attachment Figure 7 and attached Figure 8 The present invention provides a high-precision inner hole straightness detection device, including a box body 1, a limiting groove 3 is provided inside the box body 1, which is used to limit the movement trajectory of a slider 4 to ensure that it slides in a precise position, and the slider 4 is connected inside the limiting groove 3 by sliding, which ensures the stable movement of the slider 4, avoids unnecessary deviation, and improves the detection accuracy. A detection table 6 is provided on the top of the slider 4, and the detection table 6 is used to detect the straightness of the inner hole. A connecting component is provided at the bottom, which is fixedly connected to the slider 4 through the connecting component to ensure that the detection table 6 can stably contact the inner hole during the sliding process. A buffer component is provided on the top of the slider 4, and the buffer component adopts a rubber ring 14. The rubber The bottom of the ring 14 is fixedly connected to the top of the slider 4, and the top is tightly fitted to the bottom of the detection table 6. The buffer component can effectively reduce the impact force generated during the detection process to prevent it from affecting the measurement results, thereby ensuring high-precision detection. A card slot 27 is provided inside the slider 4, and the card slot 27 cooperates with a card block 9. The card block 9 ensures the stable connection of the detection table 6 by fitting with the card slot 27, and is fixedly connected by the mounting pin 8 to prevent loosening or deviation during use. The mounting pin 8 is rotatably connected to the card block 9, and the card block 9 is rotatably connected to the connecting rod 10. The connecting rod 10 is slidably connected to the inside of the mounting pin 8, thereby realizing the disassembly and installation of the detection table 6; The disassembly assembly includes a second limit plate 15, which is slidably connected to the inside of the slider 4. A push rod 16 is fixedly connected to the second limit plate 15, and a second spring 17 is sleeved on the outer wall of the push rod 16. The function of the second spring 17 is to provide elastic support, so that the push rod 16 can provide appropriate tension when the second limit plate 15 slides, ensuring smooth operation during disassembly. The cooperation between the connecting rod 10 and the telescopic rod 13 provides additional elastic force through the first spring 12 on the outer wall of the telescopic rod 13, which stabilizes the movement of the connecting rod 10 and further improves the reliability of the disassembly assembly. In addition, a pull rod 5 is fixedly connected to the outer wall of the slider 4, and one end of the pull rod 5 is connected to the extension rod 26 through a threaded connection, which can extend the length of the equipment and adapt to the detection requirements of different inner hole sizes, thereby improving the versatility and flexibility of the equipment; Specifically, when detecting the straightness of the inner hole, first, place the box body 1 steadily into the pipe to ensure that the box body 1 is firmly fixed in the pipe. Then, the contact pin at the bottom of the detection gauge 6 accurately presses against the inner wall to ensure that there is no gap between the contact pin and the inner wall, so as to obtain accurate measurement data. The operator drives the slider 4 to move smoothly by pulling the pull rod 5. As the slider 4 moves, the pointer on the detection gauge 6 changes accordingly. By observing the dynamic changes of the pointer on the gauge, the operator can accurately judge the straightness of the inner hole, thereby realizing the detection of the straightness of the inner hole. This process is convenient and efficient, and can quickly obtain the accuracy data of the inner hole to ensure that the pipe or workpiece meets the design requirements. When it is necessary to disassemble the detection gauge 6 in order to store the box body 1 or perform other processing, just pinch the push rod 16 and easily push the block 1, and then the detection gauge 6 can be separated from the mounting pin 8 and pulled out. This disassembly process is simple and quick, which saves operation time and improves work efficiency. When installing the detection gauge 6, it is only necessary to insert the bottom of the detection gauge 6 into the slider 4 and fix it firmly by the mounting pin 8. Then, the block 9 inside the mounting pin 8 is tightly matched with the slot 27 to ensure that the detection gauge 6 is firmly locked on the slider 4. The block 9 is precisely connected with the connecting rod 10 and the limit plate 11. Under the tension of the first spring 12, the block 9 can automatically reset and stably fit in the slot 27, thereby ensuring the stability and accuracy of the detection gauge 6. This design makes the disassembly and installation of the detection gauge 6 more convenient and quick, and ensures the efficient operation and maintenance of the equipment.

[0019] Please see attached Figure 5 and attached Fig. 9A connecting plate 22 is provided inside the box body 1, and the connecting plate 22 is used to connect and stabilize the various components in the box body 1. Through the cooperation between the connecting plate 22 and the box body 1, effective fixation and support of the internal structure are achieved. A mounting groove 20 is also provided inside the box body 1, and the mounting groove 20 is used to accommodate and fix other components to ensure that these components will not deviate or loosen during the use of the equipment. At the same time, a reinforcement groove 21 and a mounting hole 28 are also provided inside the box body 1. The reinforcement groove 21 is used to enhance the structural strength of the box body 1 to avoid deformation due to external force during use, thereby ensuring the long-term stability of the equipment, and the mounting hole 28 provides an installation position for connecting with external components, thereby improving the assembly convenience and stability of the equipment. An extension frame 2 is provided on one side of the box body 1, and a connecting plate 22 is fixedly connected to one side of the extension frame 2. The connection between the connecting plate 22 and the extension frame 2 enables the extension frame 2 to be flexibly adjusted or disassembled when necessary. Unloading, thereby increasing the adaptability and flexibility of the equipment, one side of the connecting plate 22 is fixedly connected with a clamping block 23, and the clamping block 23 is embedded in the installation groove 20. Through the embedded design, the clamping block 23 can be firmly fixed in the installation groove 20, avoiding the movement or loosening of the clamping block 23 during use. One side of the clamping block 23 is fixedly connected with a convex strip 24, and the convex strip 24 is embedded in the reinforcement groove 21. The embedded design of the convex strip 24 provides additional stability and strengthens the fastening effect of the structure, further improving the compression and tension resistance of the equipment, and ensuring the stable operation of the equipment in various environments. The other side of the extension frame 2 is fixedly connected with a connecting plate 29, and the connecting plate 29 is slidably connected to the inside of the installation hole 28. The sliding connection design of the connecting plate 29 enables the extension frame 2 to be adjusted according to needs to adapt to different working conditions or pipeline lengths, thereby improving the flexibility and applicability of the equipment; Specifically, when the length of the detection equipment needs to be extended, the operator only needs to easily slide the extension frame 2 into the second limiting groove 25 through the connecting plate 22. At this time, the extension frame 2 can be firmly matched with the second limiting groove 25 to ensure that the connection between the extension frame 2 and the main unit is firm and stable. Then, the extension frame 2 is inserted into the mounting hole 28 through the connecting plate 29 for precise positioning, so that the connection between the extension frame 2 and the main unit is more stable, avoiding position displacement caused by vibration or external force generated during use. To ensure that the connection of the extension frame 2 is more secure, the second clamping block 23 on one side of the connecting plate 22 will be accurately embedded in the mounting groove 20, and the close cooperation between the second clamping block 23 and the groove body will prevent the extension frame 2 from In the process of use, loosening occurs. At the same time, the convex strip 24 at the bottom of the block 23 is embedded in the reinforcement groove 21. The design of the reinforcement groove 21 greatly improves the fitting strength of the block 23, ensuring that the extension frame 2 will not be loosened due to the pulling force during the extension process, further enhancing the overall stability of the equipment. Finally, by screwing the extension rod 26 into the pull rod 5, the extension of the pull rod 5 is successfully completed by threaded connection, so that the working range of the equipment can be adjusted at any time as needed to adapt to the inspection requirements of pipelines of different lengths. The extended pull rod 5 can stably drive the slider 4 to move, ensuring that the inspection gauge 6 can accurately measure within a longer range and provide accurate inner hole straightness data.

[0020] Please see attached Figure 3 and attached Figure 6 The bottom of the box body 1 is threadedly connected with an adjusting leg 18, and the adjusting leg 18 is used to adjust the height and balance of the box body 1. By rotating the adjusting leg 18, the operator can easily fine-tune the horizontal and vertical positions of the box body 1, thereby ensuring that the box body 1 maintains a stable working state in different working environments. The outer wall of the adjusting leg 18 is threadedly connected with a fastening bolt 19, and the fastening bolt 19 is used to fix the position of the adjusting leg 18 to ensure that the leg will not be displaced or loosened due to external force after adjustment. The top of the fastening bolt 19 fits with the bottom of the box body 1. By tightening the fastening bolt 19, the contact stability between the leg and the box body 1 can be further increased, ensuring that the position of the leg after adjustment is firm and reliable, avoiding the loosening or position change of the leg due to vibration or external factors during work, and ensuring the long-term stability and accuracy of the equipment; Specifically, when the horizontal position of the detection device needs to be adjusted, the operator only needs to easily adjust the adjustment leg 18 at the bottom of the box body 1. By rotating the adjustment leg 18, the operator can screw it out or screw it in to achieve precise adjustment of the horizontal position of the box body 1. The design of the adjustment leg 18 makes the adjustment process more convenient and flexible. The user does not need to use complex tools, but only needs to rotate the leg to fine-tune the device to ensure that it can maintain a horizontal state during work, thereby avoiding measurement errors caused by tilting the device. After adjusting to the ideal position, the operator only needs to tighten the fastening bolt 19 and tighten the fastening bolt The bolt 19 will fit tightly against the bottom of the box body 1 to ensure that the position of the adjustment leg 18 is stable and firm. Through the locking effect of the fastening bolt 19, the connection between the adjustment leg 18 and the box body 1 will be more stable to prevent the leg from loosening during the operation or use of the equipment, thereby maintaining the stability of the equipment and ensuring the accuracy of the measurement. The design of this adjustment mechanism is simple and efficient, which not only improves the convenience of using the equipment, but also greatly enhances its adaptability. Regardless of the working environment, the horizontal position of the box body 1 can be adjusted quickly and accurately to ensure that the equipment always maintains the best working state and avoids errors caused by uneven levels.

[0021] Working principle: When using the inner hole straightness detection device, firstly, when detecting the inner hole straightness, put the box body 1 into the pipe, then the contact needle at the bottom of the detection gauge 6 is pressed against the inner wall, and then the operator pulls the pull rod 5 to drive the slider 4 to move, so that the detection gauge 6 on the slider 4 moves, and the pointer on the gauge changes, thereby achieving the effect of detecting the inner hole straightness; When the length of the detection equipment needs to be extended, the extension frame 2 only needs to be slid into the second limiting groove 25 through the connecting plate 22, and the extension frame 2 is inserted into the installation hole 28 through the connecting plate 29 for positioning, and then the second clamping block 23 on one side of the connecting plate 22 is embedded in the installation groove 20, and the convex strip 24 at the bottom of the second clamping block 23 is embedded in the reinforcing groove 21 to improve the fitting strength of the second clamping block 23, and then the extension rod 26 is screwed into the pull rod 5 through the thread to extend the pull rod 5, so as to achieve the effect of adapting to different pipe lengths; When the horizontal position of the detection device needs to be adjusted, it is only necessary to adjust the adjustment leg 18 at the bottom of the box body 1. The horizontal position of the box body 1 can be adjusted by screwing the adjustment leg 18 out or in, and then the fastening bolt 19 can be tightened against the bottom of the box body 1 to lock the adjustment leg 18, thereby achieving the effect of adjusting the horizontal position of the box body 1. In addition, when it is necessary to disassemble the test gauge 6 to store the box body 1, it is only necessary to pinch the top rod 16 to push the card block 9 into the installation pin 8, and then the test gauge 6 can be separated and pulled out from the slider 4 through the installation pin 8. When installing the test gauge 6, it is only necessary to directly insert the bottom of the test gauge 6 into the slider 4 through the installation pin 8, and then the card block 9 inside the installation pin 8 is embedded in the card slot 27 for locking. The card block 9 is connected to the limit plate 11 through the connecting rod 10 and is pushed by the tension of the first spring 12, so that the card block 9 is reset and stably embedded in the card slot 27, thereby achieving the effect of facilitating the disassembly of the test gauge 6.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision inner hole straightness detection device, comprising a box body (1), characterized in that: A limiting groove (3) is provided inside the box body (1), a slider (4) is slidably connected inside the box body (1), a detection gauge (6) is provided on the top of the slider (4), a connecting component is provided on the bottom of the detection gauge (6), the slider (4) is slidably connected inside the limiting groove (3), an opening (7) is provided inside the box body (1), a buffer component is provided on the top of the slider (4), a slot (27) is provided inside the slider (4), a disassembly component is provided inside the slider (4), a pull rod (5) is fixedly connected to the outer wall of the slider (4), and an extension rod (26) is threadedly connected to one end of the pull rod (5); The disassembly assembly comprises a second limit plate (15), the second limit plate (15) being slidably connected to the inside of the slider (4), a push rod (16) being fixedly connected to the inside of the second limit plate (15), a second spring (17) being sleeved on the outer wall of the push rod (16), one end of the second spring (17) being fixedly connected to one side of the second limit plate (15), and the other end of the second spring (17) being fixedly connected to the inside of the slider (4).

2. The high-precision inner hole straightness detection device according to claim 1 is characterized in that: The connecting assembly comprises a mounting pin (8), the top of the mounting pin (8) is fixedly connected to the bottom of the detection table (6), a block (9) is rotatably connected inside the mounting pin (8), a connecting rod (10) is rotatably connected inside the block (9), the connecting rod (10) is slidably connected inside the mounting pin (8), a telescopic rod (13) is arranged inside the mounting pin (8), a first spring (12) is sleeved on the outer wall of the telescopic rod (13), one end of the first spring (12) and the telescopic rod (13) are both fixedly connected to the top of a limit plate (11), the other end of the first spring (12) and the telescopic rod (13) are both fixedly connected inside the mounting pin (8), the block (9) is engaged with a slot (27), and the mounting pin (8) is slidably connected inside the slider (4).

3. The high-precision inner hole straightness detection device according to claim 1 is characterized in that: The buffer assembly comprises a rubber ring (14), the bottom of the rubber ring (14) is fixedly connected to the top of the slider (4), and the top of the rubber ring (14) is attached to the bottom of the detection table (6).

4. The high-precision inner hole straightness detection device according to claim 1 is characterized in that: The bottom of the box body (1) is threadedly connected to an adjusting leg (18), the outer wall of the adjusting leg (18) is threadedly connected to a fastening bolt (19), and the top of the fastening bolt (19) is in contact with the bottom of the box body (1).

5. The high-precision inner hole straightness detection device according to claim 1 is characterized in that: A connecting plate (22) is provided inside the box body (1), a mounting groove (20) is provided inside the box body (1), and a reinforcement groove (21) and a mounting hole (28) are provided inside the box body (1).

6. The high-precision inner hole straightness detection device according to claim 1 is characterized in that: An extension frame (2) is provided on one side of the box body (1); a connecting plate (22) is fixedly connected to one side of the extension frame (2); a second clamping block (23) is fixedly connected to one side of the connecting plate (22); and a convex strip (24) is fixedly connected to one side of the second clamping block (23).

7. The high-precision inner hole straightness detection device according to claim 6, characterized in that: The connecting plate (22) is slidably connected inside the second limiting groove (25), the second clamping block (23) is engaged with the installation groove (20), and the convex strip (24) is engaged with the reinforcement groove (21).

8. The high-precision inner hole straightness detection device according to claim 6, characterized in that: A connecting plate (29) is fixedly connected to one side of the extension frame (2), and the connecting plate (29) is slidably connected inside the mounting hole (28).

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