Stainless steel tube axis flatness detection table

By designing a stainless steel pipe axis flatness testing platform, and utilizing a three-jaw chuck and a motor-driven screw system, high-precision automatic testing of the surface flatness of stainless steel pipes was achieved. This solved the problem of large errors in traditional testing methods, and improved the accuracy of testing and the versatility of the equipment.

CN224216034UActive Publication Date: 2026-05-08SHANGHAI XINXING STAINLESS STEEL PIPE PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XINXING STAINLESS STEEL PIPE PLANT
Filing Date
2025-05-19
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional methods for inspecting the surface of stainless steel pipes have significant errors, leading to reduced product quality.

Method used

A stainless steel pipe axis flatness testing platform was designed. The stainless steel pipe is fixed with a three-jaw chuck, and the lateral movement of the testing probe is achieved by a motor-driven screw and telescopic column. The axis flatness is automatically detected by the change of the testing curve.

Benefits of technology

It improves the accuracy and automation of testing, reduces errors, is applicable to different types of stainless steel pipes, and provides intuitive display of test results.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224216034U_ABST
    Figure CN224216034U_ABST
Patent Text Reader

Abstract

The utility model discloses a stainless steel tube axis flatness detection bench comprising a base plate, the upper part of the base plate is provided with a mounting seat, the interior of the mounting seat is provided with a sliding groove, the interior of the sliding groove is provided with a second screw rod, and the side surface of the second screw rod extends to the exterior of the mounting seat and is provided with a second motor; and a sliding block is arranged on the surface of the second screw rod. During detection, a stainless steel tube is mounted in the three-jaw chuck, and the first motor is started to drive the movable seat to move and contact with the stainless steel tube, so that the stainless steel tubes of different models can be fixed, the adjusting rod is rotated, and the height of the telescopic column is adjusted, so that the detection contact is in contact with the surface of the stainless steel tube; a second motor drives a second screw rod to rotate, so that a sliding block drives a detection contact to transversely move on the surface of the stainless steel pipe, the detection contact can generate a detection curve according to a moving route, when the detection contact passes through a concave-convex place, the curve changes, and the detection error is small.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe axis flatness testing technology, and more specifically to a stainless steel pipe axis flatness testing table. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components.

[0003] The surface of stainless steel pipes may be uneven, which reduces the quality of the product. Therefore, it is necessary to inspect and differentiate the surface of stainless steel pipes. Traditional inspection and differentiation methods have a large margin of error. Thus, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel pipe axis flatness testing platform, which solves the problem that the surface of stainless steel pipes may be uneven, which reduces the quality of stainless steel pipe products and requires surface inspection and differentiation. Traditional inspection and differentiation methods have large errors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel pipe axis flatness testing platform, comprising: a base plate, a mounting seat on the upper part of the base plate, and a sliding groove inside the mounting seat; a second screw rod inside the sliding groove, with its side extending to the outside of the mounting seat and mounted on a second motor; a sliding block on the surface of the second screw rod, and a support plate on its side; a testing instrument on the surface of the support plate, and a fixed cylinder inside the support plate; a mounting groove inside the fixed cylinder, and a telescopic column inside the mounting groove; the telescopic column... The bottom is provided with a detection contact and is electrically connected to the detector. The mounting groove is provided with an adjusting rod and is in contact with the upper part of the telescopic column. The surface of the base plate is provided with a mounting frame and the inner side of the mounting frame is provided with a first screw. One end of the first screw extends to the outside of the mounting frame and is equipped with a first motor. The surface of the first screw is provided with a set of fixed seats and a set of movable seats. The fixed seats are located at the other end of the first screw. The movable seats are threadedly connected to the first screw. The side of the fixed seats is provided with a three-jaw chuck and the inside of the triangular chuck is provided with an adjusting component.

[0006] In a preferred embodiment of this utility model, a display module is provided on the upper part of the mounting base, and the display module is electrically connected to the detector.

[0007] In a preferred embodiment of this utility model, the side of the movable seat is provided with a protective pad made of elastic material.

[0008] In a preferred embodiment of this utility model, limit rods are provided on both sides of the first screw, and the limit rods pass through the movable seat and the mounting frame for fixed connection.

[0009] In a preferred embodiment of this utility model, a limiting plate is provided at the top of the telescopic column and a spring column is provided at the bottom of the limiting plate. The telescopic column is telescopically connected to the mounting groove through the spring column.

[0010] In a preferred embodiment of this utility model, the top of the adjusting rod is provided with an adjusting knob, and the outside of the adjusting knob is provided with several sets of anti-slip protrusions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention features a mounting base on the upper part of a base plate, with a sliding groove inside the mounting base. A second screw is positioned inside the sliding groove, with its side extending to the outside of the mounting base and housing a second motor. A sliding block is positioned on the surface of the second screw, with a support plate on its side. A detector is positioned on the surface of the support plate, with a fixed cylinder inside. A mounting groove is positioned inside the fixed cylinder, with a telescopic column inside the mounting groove. A detection contact is positioned at the bottom of the telescopic column and is electrically connected to the detector. An adjusting rod is positioned inside the mounting groove, contacting the upper part of the telescopic column. A mounting frame is positioned on the surface of the base plate, with a first screw positioned inside the mounting frame. One end of the first screw extends to the outside of the mounting frame and is housing a first motor. A set of fixed seats and a set of movable seats are positioned on the surface of the first screw. The fixed seat is located at the other end of the first screw, and the movable seat is threadedly connected to the first screw. A three-jaw chuck is provided on the side of the fixed seat, and an adjusting component is provided inside the triangular chuck. During testing, the stainless steel tube is installed in the three-jaw chuck, and the adjusting component is rotated to fix the stainless steel tube. At the same time, the first motor starts and drives the movable seat to move and contact the stainless steel tube. This setting can fix different types of stainless steel tubes. After fixing, the adjusting rod is rotated to adjust the height of the telescopic column so that the detection contact comes into contact with the surface of the stainless steel tube. The second motor drives the second screw to rotate, causing the sliding block to move the detection contact laterally on the surface of the stainless steel tube. The detection contact will show a detection curve according to the movement path. When it passes through uneven areas, the curve will change, thus completing the detection of the axial flatness of the stainless steel tube. The detection error is small and the degree of automation is high. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present invention;

[0015] Figure 3 This is a top view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of this utility model.

[0017] In the diagram: 1. Base plate; 2. Mounting seat; 3. Sliding groove; 4. Display module; 5. Mounting bracket; 6. First screw; 7. Limiting rod; 8. Movable seat; 9. First motor; 10. Fixed seat; 11. Three-jaw chuck; 12. Adjusting component; 13. Protective pad; 14. Second screw; 15. Second motor; 16. Sliding block; 17. Support plate; 18. Fixed cylinder; 19. Telescopic column; 20. Detector; 21. Detection contact; 22. Mounting groove; 23. Spring column; 24. Limiting plate; 25. Adjusting rod; 26. Adjusting knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4This utility model provides a technical solution: a stainless steel pipe axis flatness testing platform, comprising: a base plate 1, a mounting base 2 provided on the upper part of the base plate 1, and a sliding groove 3 provided inside the mounting base 2; a second screw 14 provided inside the sliding groove 3, and the side of the second screw 14 extending to the outside of the mounting base 2 and mounted with a second motor 15; a sliding block 16 provided on the surface of the second screw 14, and a support plate 17 provided on the side of the sliding block 16; a testing instrument 20 provided on the surface of the support plate 17, and a fixing cylinder 18 provided inside the support plate 17; a mounting groove 22 provided inside the fixing cylinder 18, and a telescopic column 19 provided inside the mounting groove 22; a testing contact 21 provided at the bottom of the telescopic column 19, and the testing contact 21 is connected to the testing instrument. Electrical connection between 20 and 22, the mounting groove 22 is provided with an adjusting rod 25 and the adjusting rod 25 is in contact with the upper part of the telescopic column 19, the surface of the base plate 1 is provided with a mounting bracket 5 and the inner side of the mounting bracket 5 is provided with a first screw 6, one end of the first screw 6 extends to the outside of the mounting bracket 5 and is equipped with a first motor 9, the surface of the first screw 6 is provided with a set of fixed seats 10 and a set of movable seats, the fixed seats 10 are located at the other end of the first screw 6, the movable seats 8 are threadedly connected to the first screw 6, the side of the fixed seats 10 is provided with a three-jaw chuck 11 and the inside of the triangular chuck is provided with an adjusting element 12, the upper part of the base plate 1 is provided with a mounting seat 2 and the inside of the mounting seat 2 is provided with a sliding groove 3, and the inside of the sliding groove 3 is provided with a... A second screw 14 is provided, with its side extending to the outside of the mounting base 2 and a second motor 15 mounted thereon. A sliding block 16 is provided on the surface of the second screw 14, and a support plate 17 is provided on the side of the sliding block 16. A detector 20 is provided on the surface of the support plate 17, and a fixed cylinder 18 is provided inside it. A mounting groove 22 is provided inside the fixed cylinder 18, and a telescopic column 19 is provided inside the mounting groove 22. A detection contact 21 is provided at the bottom of the telescopic column 19, and the detection contact 21 is electrically connected to the detector 20. An adjusting rod 25 is provided inside the mounting groove 22, and the adjusting rod 25 is in contact with the upper part of the telescopic column 19. A mounting bracket 5 is provided on the surface of the base plate 1, and a first screw 6 is provided on the inner side of the mounting bracket 5. One end extends to the outside of the mounting bracket 5 and is equipped with a first motor 9. A set of fixed seats 10 and a set of movable seats are provided on the surface of the first screw 6. The fixed seats 10 are located at the other end of the first screw 6, and the movable seats 8 are threadedly connected to the first screw 6. A three-jaw chuck 11 is provided on the side of the fixed seats 10, and an adjusting member 12 is provided inside the triangular chuck. During testing, the stainless steel tube is installed in the three-jaw chuck 11, and the adjusting member 12 is rotated to fix the stainless steel tube. At the same time, the first motor 9 is started to drive the movable seat 8 to move and contact the stainless steel tube. This setting can fix different types of stainless steel tubes. After fixing, the adjusting rod 25 is rotated to adjust the height of the telescopic column 19 so that the detection contact 21 contacts the surface of the stainless steel tube.The second motor 15 drives the second screw 14 to rotate, causing the sliding block 16 to move the detection contact 21 laterally across the surface of the stainless steel pipe. The detection contact 21 will generate a detection curve according to the movement path. When it passes through uneven areas, the curve will change, thus completing the detection of the axial flatness of the stainless steel pipe. This method has small detection error and a high degree of automation.

[0020] Further improvements, such as Figure 1 As shown: The upper part of the mounting base 2 is provided with a display module 4 and the display module 4 is electrically connected to the detector 20. The display module 4 can display the detection data received by the detector 20 in real time, so that the operator can intuitively see the detection status of the flatness of the stainless steel pipe axis, which improves the convenience and accuracy of the detection.

[0021] Further improvements, such as Figure 2 As shown: The side of the movable seat 8 is provided with a protective pad 13 made of elastic material. The protective pad 13 increases the friction with the end of the stainless steel tube, ensuring the stability of the fixation.

[0022] Further improvements, such as Figure 1 As shown: Limiting rods 7 are provided on both sides of the first screw 6, and the limiting rods 7 pass through the movable seat 8 and are fixedly connected to the mounting frame 5. The setting of the limiting rods 7 restricts the movement range of the movable seat 8 on the first screw 6, ensuring the stability of the movable seat 8 during movement.

[0023] Further improvements, such as Figure 4 As shown: The top of the telescopic column 19 is provided with a limiting plate 24 and the lower part of the limiting plate 24 is provided with a spring column 23. The telescopic column 19 is telescopically connected to the mounting groove 22 through the spring column 23. After rotating the adjusting rod 25, the telescopic column 19 can be automatically reset through the spring column 23, so that the detection contact 21 is disengaged from the surface of the stainless steel tube.

[0024] Further improvements, such as Figure 4 As shown: The top of the adjusting rod 25 is provided with an adjusting knob 26, and the outside of the adjusting knob 26 is provided with several sets of anti-slip protrusions. The design of the adjusting knob 26 and the anti-slip protrusions makes it easier for the operator to adjust the height of the telescopic column 19.

[0025] Working principle: The stainless steel tube is installed in the three-jaw chuck 11. The stainless steel tube is tightened and fixed by rotating the adjusting component 12, ensuring the stability of the stainless steel tube during the testing process and preventing testing errors caused by movement or shaking. The first motor 9 is started, which drives the first screw 6 to rotate, thereby pushing the movable seat 8 to move along the first screw 6 until the protective pad 13 on the movable seat 8 lightly contacts the surface of the stainless steel tube. By adjusting the position of the movable seat 8, it can be adapted to different types of stainless steel tubes, improving the versatility of the equipment. Then, the adjusting knob 26 on the adjusting rod 25 is rotated, and the height of the telescopic column 19 is adjusted through the contact between the adjusting rod 25 and the telescopic column 19, so that the detection contact 21 is aligned with the surface of the stainless steel tube. The close contact between the stainless steel tube and the surface ensures that the detection contact 21 can accurately obtain the flatness information of the stainless steel tube surface. The second motor 15 is started, which drives the second screw 14 to rotate. The sliding block 16 moves with the rotation of the second screw 14, thereby driving the detection contact 21 to move laterally on the surface of the stainless steel tube. During the movement, the detection contact 21 will show a corresponding detection curve according to the flatness of the stainless steel tube surface. When the detection contact 21 passes through the unevenness of the stainless steel tube surface, the detection curve will change. These changes are captured by the detector 20 and converted into electrical signals. The detector 20 transmits the electrical signals to the display module 4, which displays the detection curve and related flatness data in real time.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stainless steel pipe axis flatness testing table, characterized in that: include: A base plate (1) is provided with a mounting base (2) on its upper part, and a sliding groove (3) is provided inside the mounting base (2). A second screw (14) is provided inside the sliding groove (3), and the side of the second screw (14) extends to the outside of the mounting base (2) and is equipped with a second motor (15). A sliding block (16) is provided on the surface of the second screw (14), and a support plate (17) is provided on the side of the sliding block (16). A detector (20) is provided on the surface of the support plate (17), and a fixed cylinder (18) is provided inside the fixed cylinder (18). A mounting groove (22) is provided inside the mounting groove (22), and a telescopic column (19) is provided inside the mounting groove (22). A detection contact (21) is provided at the bottom of the telescopic column (19), and the detection contact (21) is provided at the bottom of the telescopic column (19). The mounting slot (22) is electrically connected to the detector (20). An adjusting rod (25) is provided inside the mounting slot (22), and the adjusting rod (25) is in contact with the upper part of the telescopic column (19). A mounting frame (5) is provided on the surface of the base plate (1), and a first screw (6) is provided on the inner side of the mounting frame (5). One end of the first screw (6) extends to the outside of the mounting frame (5) and is equipped with a first motor (9). A set of fixed seats (10) and a set of movable seats (8) are provided on the surface of the first screw (6). The fixed seat (10) is located at the other end of the first screw (6). The movable seat (8) is threadedly connected to the first screw (6). A three-jaw chuck (11) is provided on the side of the fixed seat (10), and an adjusting component (12) is provided inside the triangular chuck.

2. The stainless steel pipe axis flatness testing table according to claim 1, characterized in that: The upper part of the mounting base (2) is provided with a display module (4) and the display module (4) is electrically connected to the detector (20).

3. The stainless steel pipe axis flatness testing table according to claim 1, characterized in that: The side of the movable seat (8) is provided with a protective pad (13) made of elastic material.

4. The stainless steel pipe axis flatness testing table according to claim 1, characterized in that: The first screw (6) is provided with limit rods (7) on both sides, and the limit rods (7) pass through the movable seat (8) and are fixedly connected to the mounting bracket (5).

5. The stainless steel pipe axis flatness testing table according to claim 1, characterized in that: The top of the telescopic column (19) is provided with a limiting plate (24) and the lower part of the limiting plate (24) is provided with a spring column (23). The telescopic column (19) is telescopically connected to the mounting groove (22) through the spring column (23).

6. The stainless steel pipe axis flatness testing table according to claim 1, characterized in that: The top of the adjusting rod (25) is provided with an adjusting knob (26), and the outside of the adjusting knob (26) is provided with several sets of anti-slip protrusions.