Tubular product articulated arm measuring device
By combining a motor-driven screw rotation with a multi-faceted measuring mechanism, the problem of fixed length and single adjustment in existing devices is solved, enabling long-distance and multi-faceted measurement of pipe products and improving practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁波德垦流体设备科技有限公司
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-28
AI Technical Summary
Existing articulated arm measuring devices for tubular products have a fixed length and cannot be adjusted, making it impossible to perform long-distance measurements. Furthermore, they can only be adjusted in one direction, reducing their practicality.
A measuring device for articulated arms of tubular products was designed. The device uses a motor to drive a screw to rotate, adjusting the length and position of the arm. It combines a length measuring mechanism with a diameter and thickness measuring mechanism to achieve multiple measurement functions.
It enables long-distance and multi-faceted measurement of pipe products, improving the practicality of the device.
Smart Images

Figure CN224175784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tubular product measurement technology, and more specifically, it relates to a tubular product articulated arm measuring device. Background Technology
[0002] During the production of tubular products, corresponding measuring devices are required to perform the necessary measurements. Some existing measuring devices for tubular products are mounted on articulated arms, which are then adjusted accordingly.
[0003] The length of the articulated arms in existing tubular product articulated arm measuring devices is mostly fixed, which makes it inconvenient to adjust the length of the articulated arms, to adjust the measuring device over a long distance, and to measure tubular products that are far away. In addition, existing articulated arm measuring devices can only adjust tubular products in one aspect, which is not convenient for multi-faceted adjustment of tubular products, thus reducing their practicality. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the problems existing in the prior art, this utility model provides a measuring device for articulated arms of tubular products, thereby solving the technical problems mentioned in the background art, such as the inconvenience of adjusting the length of the articulated arm, the inconvenience of adjusting the measuring device over a long distance, and the inconvenience of measuring tubular products that are far away.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a tubular product articulated arm measuring device, comprising a base, an adjusting seat slidably disposed at the top of the base, a first articulated arm fixedly connected to the top of the adjusting seat, a telescopic arm rotatably connected to the first articulated arm, the telescopic arm including a fixed arm, an adjusting groove disposed on the fixed arm, an adjusting arm slidably disposed inside the adjusting groove, a first screw threadedly connected to the adjusting arm, the first screw rotatably connected to the fixed arm, a first motor mounted on the fixed arm, the output end of the first motor fixedly connected to the side end of the first screw, a second articulated arm rotatably connected to the adjusting arm, a plurality of first electric cylinders mounted on the second articulated arm, a length measuring mechanism fixedly connected to the telescopic rods of the plurality of first electric cylinders, a diameter and thickness measuring mechanism connected to the side end of the length measuring mechanism via a lifting mechanism, facilitating the adjustment of the length of the telescopic arm, facilitating the adjustment of the distance between the length measuring mechanism and the diameter and thickness measuring mechanism and the base, facilitating long-distance adjustment, and facilitating the measurement of tubular products at a distance.
[0008] The present invention is further configured such that the length measuring mechanism includes a horizontal seat, the horizontal seat is fixedly connected to a plurality of first electric cylinder telescopic rods, the bottom end of the horizontal seat is provided with a convex groove, a convex seat is slidably disposed inside the convex groove, a second screw is threadedly connected inside the convex seat, the second screw is rotatably connected to the horizontal seat, a baffle is installed on the side end of the horizontal seat, a second motor is installed on the baffle, the output end of the second motor is fixedly connected to the side end of the second screw, a first positioning plate is fixedly connected to the bottom end of the horizontal seat, a first measuring plate is fixedly connected to the bottom end of the convex seat, and a first scale line is provided on the side end of the horizontal seat to facilitate the measurement of the length of pipe products.
[0009] The present invention is further configured such that the lifting mechanism includes an L-shaped seat, the L-shaped seat is fixedly connected to the top of the horizontal seat, the L-shaped seat is located at the top of the horizontal seat near the first positioning plate, and a second electric cylinder is installed on the L-shaped seat to facilitate the adjustment of the height of the diameter and thickness measuring mechanism.
[0010] The present invention is further configured such that the diameter and thickness measuring mechanism includes a horizontal plate and a third electric cylinder. The horizontal plate is fixedly connected to the second electric cylinder. A groove is provided at the bottom end of the horizontal plate, and a sliding plate is slidably arranged inside the groove. The third electric cylinder is installed on the side end of the horizontal plate, and the telescopic rod of the third electric cylinder is fixedly connected to the side end of the sliding plate. A second positioning plate is fixedly connected to the bottom end of the horizontal plate, and a second measuring plate is fixedly connected to the bottom end of the sliding plate. A second scale line is provided at the side end of the horizontal plate. Measuring strips are fixedly connected to the side ends of both the second positioning plate and the second measuring plate, which facilitates the measurement of the diameter and thickness of pipe products.
[0011] The present invention is further configured such that a sliding groove is provided at the top of the base, a sliding seat is slidably disposed inside the sliding groove, the top of the sliding seat is fixedly connected to the bottom of the adjusting seat, a third screw is threadedly connected inside the sliding seat, the third screw is rotatably connected to the base, a third motor is fixedly connected to the side of the base, and the output end of the third motor is fixedly connected to the side of the third screw, so as to facilitate the corresponding adjustment of its position.
[0012] The present invention is further configured such that two fixed rods are fixedly connected inside the sliding groove, and both fixed rods are slidably engaged with the sliding seat to ensure that the sliding seat moves stably inside the sliding groove.
[0013] The present invention is further configured such that a limiting groove is provided on the side end of the fixed arm, and a limiting block is fixedly connected to the side end of the adjusting arm. The limiting block and the limiting groove are slidably engaged, thereby limiting the position of the adjusting arm.
[0014] The present invention is further configured such that multiple mounting blocks are fixedly connected to the base, and each mounting block is provided with mounting holes, so as to facilitate the installation and fixing of the base on the ground.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a measuring device for articulated arms of tubular products, which has the following beneficial effects:
[0017] 1. The first screw is driven to rotate by the first motor. The rotation of the first screw causes the adjusting arm to slide inside the adjusting groove, thereby adjusting the total length of the fixed arm and the adjusting arm. This facilitates the adjustment of the distance between the length measuring mechanism and the diameter and thickness measuring mechanism and the base, and makes it easier to measure pipe products that are far from the base.
[0018] 2. The length measuring mechanism facilitates the measurement of the length of pipe products, and the diameter and thickness measuring mechanism facilitates the measurement of the outer diameter and thickness of pipe products. This allows for comprehensive measurement of Guanlei products, improving their practicality.
[0019] 3. The third screw is driven by the third motor to rotate. The rotation of the third screw causes the sliding seat to slide inside the sliding groove. The sliding seat drives the adjustment seat, the first joint arm, the telescopic arm, the second joint arm, the length measuring mechanism and the diameter and thickness measuring mechanism to adjust their positions. The positions of the pipe products are adjusted appropriately to avoid the need to adjust the position of the pipe products to make corresponding measurements. Attached Figure Description
[0020] Figure 1 This is a front structural diagram of a tubular product articulated arm measuring device according to the present invention;
[0021] Figure 2 This is a structural diagram showing the cooperation of the first joint arm, the telescopic arm, and the second joint arm in this utility model.
[0022] Figure 3 This is a schematic diagram of the connection between the length measuring mechanism and the diameter and thickness measuring mechanism in this utility model;
[0023] Figure 4 This is a schematic diagram of the length measuring mechanism in this utility model;
[0024] Figure 5 This is a schematic diagram of the diameter and thickness measuring mechanism in this utility model.
[0025] In the diagram: 1. Base; 2. Adjusting seat; 3. First joint arm; 4. Fixed arm; 5. Adjusting groove; 6. Adjusting arm; 7. First screw; 8. First motor; 9. Second joint arm; 10. First electric cylinder; 11. Horizontal seat; 12. Convex groove; 13. Convex seat; 14. Second screw; 15. Baffle; 16. Second motor; 17. First positioning plate; 18. First measuring plate; 19. First scale line; 20. L-shaped seat; 21. Second electric cylinder; 22. Horizontal plate; 23. Slide groove; 24. Slide plate; 25. Second positioning plate; 26. Second measuring plate; 27. Second scale line; 28. Measuring strip; 29. Sliding groove; 30. Sliding seat; 31. Third screw; 32. Third motor; 33. Fixed rod; 34. Limiting groove; 35. Limiting block; 36. Mounting block; 37. Mounting hole; 38. Third electric cylinder. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5A measuring device for articulated arms of tubular products includes a base 1, on which multiple mounting blocks 36 are fixedly connected. Each mounting block 36 has mounting holes 37, through which ground nails are inserted to secure the base 1 to the ground. An adjusting seat 2 is slidably mounted on the top of the base 1, and a first articulated arm 3 is fixedly connected to the top of the adjusting seat 2. A telescopic arm is rotatably connected to the first articulated arm 3, and the first articulated arm 3 and the telescopic arm are rotatably connected by a motor. The telescopic arm includes a fixed arm 4, on which an adjusting groove 5 is provided. An adjusting arm 6 is slidably mounted inside the adjusting groove 5. A limit groove 34 is provided on the side end of the fixed arm 4, and a limit groove 34 is fixedly connected to the side end of the adjusting arm 6. Position block 35 and limit block 35 slide in fit with limit groove 34 to limit the adjustment arm 6. The adjustment arm 6 is threadedly connected to a first screw 7, which is rotatably connected to a fixed arm 4. A first motor 8 is installed on the fixed arm 4, and the output end of the first motor 8 is fixedly connected to the side end of the first screw 7. A second joint arm 9 is rotatably connected to the adjustment arm 6, and the second joint arm 9 is rotatably connected to the adjustment arm 6 by a motor drive. Multiple first electric cylinders 10 are installed on the second joint arm 9, and a length measuring mechanism is fixedly connected to the telescopic rod of the multiple first electric cylinders 10. The side end of the length measuring mechanism is connected to a diameter and thickness measuring mechanism through a lifting mechanism. The height of the length measuring mechanism and the diameter and thickness measuring mechanism is adjusted by the multiple first electric cylinders 10.
[0030] Specifically, the first motor 8 drives the first screw 7 to rotate, and the rotation of the first screw 7 causes the adjusting arm 6 to slide inside the adjusting groove 5, thereby adjusting the total length of the fixed arm 4 and the adjusting arm 6. This facilitates the adjustment of the distance between the length measuring mechanism and the diameter and thickness measuring mechanism and the base 1, making it easier to measure pipe products located far from the base 1. The length measuring mechanism facilitates the measurement of the length of pipe products, and the diameter and thickness measuring mechanism facilitates the measurement of the outer diameter and thickness of pipe products. This allows for multi-faceted measurement of the pipe products, improving their practicality.
[0031] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5The length measuring mechanism includes a horizontal seat 11, which is fixedly connected to multiple first electric cylinders 10 telescopic rods. A convex groove 12 is provided at the bottom end of the horizontal seat 11, and a convex seat 13 is slidably disposed inside the convex groove 12. A second screw 14 is threadedly connected inside the convex seat 13, and the second screw 14 is rotatably connected to the horizontal seat 11. A baffle 15 is installed on the side end of the horizontal seat 11, and a second motor 16 is installed on the baffle 15. The output end of the second motor 16 is fixedly connected to the side end of the second screw 14. A first positioning plate 17 is fixedly connected to the bottom end of the horizontal seat 11, and a first measuring plate 18 is fixedly connected to the bottom end of the convex seat 13. A first scale line 19 is provided on the side end of the horizontal seat 11. The lifting mechanism includes an L-shaped seat 20, which is fixedly connected to the top end of the horizontal seat 11. The L-shaped seat 20 is located at the top end of the horizontal seat 11 near the first positioning plate 17. A second electric cylinder 21 is installed on the L-shaped seat 20 to facilitate... The height of the diameter and thickness measuring mechanism is adjusted. The diameter and thickness measuring mechanism includes a horizontal plate 22 and a third electric cylinder 38. The horizontal plate 22 is fixedly connected to the second electric cylinder 21. A groove 23 is provided at the bottom end of the horizontal plate 22. A slide plate 24 is slidably arranged inside the groove 23. The third electric cylinder 38 is installed on the side end of the horizontal plate 22. The telescopic rod of the third electric cylinder 38 is fixedly connected to the side end of the slide plate 24. A second positioning plate 25 is fixedly connected to the bottom end of the horizontal plate 22. A second measuring plate 26 is fixedly connected to the bottom end of the slide plate 24. A second scale line 27 is provided on the side end of the horizontal plate 22. Measuring strips 28 are fixedly connected to the side ends of the second positioning plate 25 and the second measuring plate 26. The measuring strips 28 are thin and can be in close contact with the side end of the product. The side ends of the two measuring strips 28 are flush with the side ends of the second positioning plate 25 and the second measuring plate 26, respectively, which facilitates the measurement of the diameter and thickness of the pipe product.
[0032] Specifically, when measuring the length of a tubular product, the length measuring mechanism is adjusted so that the side end of the first positioning plate 17 contacts one end of the tubular product to be measured. Then, the second motor 16 drives the second screw 14 to rotate. The rotation of the second screw 14 causes the convex seat 13 to slide inside the convex groove 12. The convex seat 13 drives the first measuring plate 18 to move, so that the side end of the first measuring plate 18 contacts the other end of the tubular product to be measured. The length of the tubular product is measured by observing the scale value at the position corresponding to the first scale line 19 at the end of the first measuring plate 18 that contacts the tubular product. When adjusting the outer diameter of the tubular product, the second electric cylinder 21 pushes the horizontal plate 22 downward, so that the second positioning plate 25 and the second measuring plate 26 are moved below the first positioning plate 17. Then, the second positioning plate 25 and the second measuring plate 26 are adjusted to the sides of the tubular product, and one end of the first positioning plate 17 is moved downward. The slide plate 24 and the second measuring plate 26 are adjusted by the third electric cylinder 38 so that the side end of the second measuring plate 26 contacts the side end of the pipe product. The outer diameter of the pipe product is measured by observing the scale value of the second scale line 27 corresponding to the contact surface between the second measuring plate 26 and the pipe product. When the thickness of the pipe product needs to be measured, the measuring strip 28 connected to the second positioning plate 25 is inserted into the inside of the pipe product and adjusted to the middle position inside the pipe product, so that the measuring strip 28 contacts the inner wall of the pipe product. Then, the positions of the slide plate 24, the second measuring plate 26 and the corresponding measuring strip 28 are adjusted by the third electric cylinder 38 so that the side end of the measuring strip 28 contacts the outer wall of the pipe product. The thickness of the pipe product is read by observing the scale value on the second scale line 27 where the side end of the second measuring plate 26 is located.
[0033] Please see Figure 1 The top of the base 1 is provided with a sliding groove 29, and a sliding seat 30 is slidably disposed inside the sliding groove 29. The top of the sliding seat 30 is fixedly connected to the bottom of the adjusting seat 2. A third screw 31 is threadedly connected inside the sliding seat 30. The third screw 31 is rotatably connected to the base 1. A third motor 32 is fixedly connected to the side of the base 1. The output end of the third motor 32 is fixedly connected to the side of the third screw 31. Two fixing rods 33 are fixedly connected inside the sliding groove 29. Both fixing rods 33 are slidably engaged with the sliding seat 30 to ensure that the sliding seat 30 moves stably inside the sliding groove 29.
[0034] Specifically, the third motor 32 drives the third screw 31 to rotate, and the rotation of the third screw 31 causes the sliding seat 30 to slide inside the sliding groove 29. The sliding seat 30 drives the adjustment seat 2, the first joint arm 3, the telescopic arm, the second joint arm 9, the length measuring mechanism and the diameter and thickness measuring mechanism to adjust their positions. The positions of the pipe products are adjusted appropriately to avoid the need to adjust the position of the pipe products for corresponding measurements.
[0035] In summary, when using the overall equipment:
[0036] When measuring the length of tubular products, the second electric cylinder 21 pulls the horizontal plate 22 upward, causing the second positioning plate 25 and the second adjusting plate to move to the upper side of the horizontal seat 11. Then, the third motor 32 drives the third screw 31 to rotate. The rotation of the third screw 31 causes the sliding seat 30 to slide inside the sliding groove 29. The sliding seat 30 drives the adjustment seat 2, the first joint arm 3, the telescopic arm, the second joint arm 9, the length measuring mechanism, and the diameter and thickness measuring mechanism to adjust their positions. At the same time, the telescopic arm adjusts the length measuring mechanism so that the side end of the first positioning plate 17 is aligned with the horizontal plate 11. One end of the tubular product to be measured is brought into contact with the second screw 14 driven by the second motor 16. The rotation of the second screw 14 causes the convex seat 13 to slide inside the convex groove 12. The convex seat 13 drives the first measuring plate 18 to move, so that the side end of the first measuring plate 18 contacts the other end of the tubular product to be measured. The length of the tubular product is measured by observing the scale value at the position corresponding to the first scale line 19 at the end of the first measuring plate 18 that contacts the tubular product. When adjusting the outer diameter of the tubular product, the horizontal plate 22 is pushed downward by the second electric cylinder 21. Move the second positioning plate 25 and the second measuring plate 26 below the first positioning plate 17. Then adjust the second positioning plate 25 to both sides of the tubular product, so that one end of the first positioning plate 17 contacts the side end of the tubular product. Then, adjust the position of the sliding plate 24 and the second measuring plate 26 by the third electric cylinder 38, so that the side end of the second measuring plate 26 contacts the side end of the tubular product. By observing the scale value of the second scale line 27 corresponding to the contact surface between the second measuring plate 26 and the tubular product, the outer diameter of the tubular product is measured. When measuring the thickness of a tubular product, the measuring strip 28 connected to the second positioning plate 25 is inserted into the inside of the tubular product. The measuring strip 28 is then adjusted to the middle position inside the tubular product and made to contact the inner wall of the tubular product. Then, the positions of the slide plate 24, the second measuring plate 26, and the corresponding measuring strip 28 are adjusted by the third electric cylinder 38 so that the side end of the measuring strip 28 contacts the outer wall of the tubular product. The thickness of the tubular product is read by observing the corresponding scale value on the second scale line 27 where the side end of the second measuring plate 26 is located.
[0037] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A measuring device for articulated arms of tubular products, comprising a base (1), characterized in that: An adjusting seat (2) is slidably provided on the top of the base (1). A first joint arm (3) is fixedly connected to the top of the adjusting seat (2). A telescopic arm is rotatably connected to the first joint arm (3). The telescopic arm includes a fixed arm (4). An adjusting groove (5) is provided on the fixed arm (4). An adjusting arm (6) is slidably provided inside the adjusting groove (5). A first screw (7) is threadedly connected to the adjusting arm (6). The first screw (7) is rotatably connected to the fixed arm (4). A first motor (8) is installed on the fixed arm (4). The output end of the first motor (8) is fixedly connected to the side end of the first screw (7). A second joint arm (9) is rotatably connected to the adjusting arm (6). Multiple first electric cylinders (10) are installed on the second joint arm (9). A length measuring mechanism is fixedly connected to the telescopic rod of the multiple first electric cylinders (10). A diameter and thickness measuring mechanism is connected to the side end of the length measuring mechanism through a lifting mechanism.
2. The articulated arm measuring device for tubular products according to claim 1, characterized in that: The length measuring mechanism includes a horizontal seat (11), which is fixedly connected to the telescopic rods of multiple first electric cylinders (10). A convex groove (12) is provided at the bottom end of the horizontal seat (11). A convex seat (13) is slidably provided inside the convex groove (12). A second screw (14) is threadedly connected inside the convex seat (13). The second screw (14) is rotatably connected to the horizontal seat (11). A baffle (15) is installed on the side end of the horizontal seat (11). A second motor (16) is installed on the baffle (15). The output end of the second motor (16) is fixedly connected to the side end of the second screw (14). A first positioning plate (17) is fixedly connected to the bottom end of the horizontal seat (11). A first measuring plate (18) is fixedly connected to the bottom end of the convex seat (13). A first scale line (19) is provided on the side end of the horizontal seat (11).
3. The articulated arm measuring device for tubular products according to claim 2, characterized in that: The lifting mechanism includes an L-shaped seat (20), which is fixedly connected to the top of the horizontal seat (11). The L-shaped seat (20) is located at the top of the horizontal seat (11) near the first positioning plate (17). A second electric cylinder (21) is installed on the L-shaped seat (20).
4. The articulated arm measuring device for tubular products according to claim 3, characterized in that: The diameter and thickness measuring mechanism includes a horizontal plate (22) and a third electric cylinder (38). The horizontal plate (22) is fixedly connected to the second electric cylinder (21). A groove (23) is provided at the bottom end of the horizontal plate (22). A sliding plate (24) is slidably arranged inside the groove (23). The third electric cylinder (38) is installed on the side end of the horizontal plate (22). The telescopic rod of the third electric cylinder (38) is fixedly connected to the side end of the sliding plate (24). A second positioning plate (25) is fixedly connected at the bottom end of the horizontal plate (22). A second measuring plate (26) is fixedly connected at the bottom end of the sliding plate (24). A second scale line (27) is provided at the side end of the horizontal plate (22). Measuring strips (28) are fixedly connected to the side ends of the second positioning plate (25) and the second measuring plate (26).
5. The articulated arm measuring device for tubular products according to claim 1, characterized in that: The top of the base (1) is provided with a sliding groove (29), and a sliding seat (30) is slidably provided inside the sliding groove (29). The top of the sliding seat (30) is fixedly connected to the bottom of the adjusting seat (2). The sliding seat (30) is threadedly connected to a third screw (31). The third screw (31) is rotatably connected to the base (1). The side of the base (1) is fixedly connected to a third motor (32). The output end of the third motor (32) is fixedly connected to the side of the third screw (31).
6. The articulated arm measuring device for tubular products according to claim 5, characterized in that: The sliding groove (29) is internally fixedly connected to two fixed rods (33), both of which are in sliding engagement with the sliding seat (30).
7. The articulated arm measuring device for tubular products according to claim 1, characterized in that: The fixed arm (4) is provided with a limiting groove (34) on its side end, and the adjusting arm (6) is fixedly connected to a limiting block (35) on its side end. The limiting block (35) and the limiting groove (34) slide together.
8. The articulated arm measuring device for tubular products according to claim 1, characterized in that: Multiple mounting blocks (36) are fixedly connected to the base (1), and each mounting block (36) is provided with mounting holes (37).