A fast automatic measuring concentricity device

By designing limiting and detection components, the problem of adaptability of concentricity measuring equipment to grinding rods of different diameters was solved, achieving stable limiting and all-round detection of the grinding rod, thus improving measurement accuracy and efficiency.

CN224398608UActive Publication Date: 2026-06-23WUXI YATELI PRECISION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI YATELI PRECISION TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-23

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Abstract

The utility model relates to concentricity equipment field discloses a kind of fast automatic measurement concentricity equipment, including mounting seat, the top of mounting seat is fixedly installed with placing box, the inside of placing box is provided with placing box, the inside of placing box is provided with the limiting component for limiting abrasive bar, the inside of placing box is provided with the detection component for detecting abrasive bar, the inside of placing box is provided with the rotating component for driving placing box to rotate, the limiting component includes rotating rod, and the bottom of rotating rod and the bottom of placing box inner wall are rotatably installed.The utility model is limited in component rotating rod, gear and the design of four sets of tooth plate, rotating rod is rotated to drive tooth plate synchronous movement, so that connecting block drives semicircular clamping block from four around abrasive bar is limited, so as to be able to adapt to different diameter abrasive bar, limit more stable, avoid abrasive bar to shake in detection process, guarantee measurement accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of concentricity equipment, and in particular to a rapid automatic concentricity measurement device. Background Technology

[0002] Concentricity testers typically have two double-sided dial indicators, one axial and one radial, for easy reading. The base is equipped with high-performance magnets, which can firmly attach to couplings of different diameters, ranging from 30 to 900 mm. They are used to test the concentricity of couplings such as cylindrical pin type, gear type, fixed type, and flexible type. This not only improves measurement accuracy and reduces measurement errors, but also greatly improves work efficiency, reduces machine vibration, and extends service life.

[0003] In the field of industrial production, the concentricity of cylindrical workpieces such as grinding rods is one of the key indicators for measuring their quality. Whether the concentricity meets the standard directly affects the accuracy, stability and service life of the workpiece in subsequent assembly and use.

[0004] Current concentricity measuring devices on the market are difficult to adapt to grinding rods of different diameters. During the measurement process, the grinding rod is prone to shaking or shifting, which leads to distorted test data and affects the accuracy of the measurement results. Moreover, concentricity measuring devices cannot perform comprehensive testing of the grinding rod, which can easily result in blind spots and cause omissions of concentricity deviations. Therefore, a rapid and automatic concentricity measuring device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid automatic concentricity measurement device, which aims to improve the existing concentricity measurement devices that are difficult to adapt to grinding rods of different diameters. During the measurement process, the grinding rod is prone to shaking or shifting, resulting in distorted detection data and affecting the accuracy of the measurement results. Moreover, the concentricity measurement device cannot perform comprehensive detection of the grinding rod, which can easily lead to blind spots and cause the omission of concentricity deviations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid automatic concentricity measurement device includes a mounting base, a placement box fixedly mounted on the top of the mounting base, a placement container inside the placement box, a limiting component for limiting the grinding rod inside the placement container, a detection component for detecting the grinding rod inside the placement container, and a rotation component for driving the placement container to rotate inside the placement box.

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a rotating rod, the bottom of which is rotatably mounted to the bottom of the inner wall of the placement box. A gear is fixedly mounted on the surface of the rotating rod. The interior of the placement box is provided with four sets of toothed plates that mesh with the gears. A connecting block is fixedly mounted on the outer side of the toothed plates. The top of the connecting block extends into the interior of the placement box. A semi-circular locking block is fixedly mounted on the inner side of the connecting block.

[0010] As a further description of the above technical solution:

[0011] A first electric push rod is fixedly installed at the bottom of the inner wall of the placement box, and the telescopic end of the first electric push rod and one side of one set of toothed plates are fixedly installed.

[0012] As a further description of the above technical solution:

[0013] A limiting block is fixedly installed on the top of the toothed plate, and four sets of limiting grooves are opened inside the placement box. The limiting block and the limiting grooves are slidably installed.

[0014] As a further description of the above technical solution:

[0015] The detection assembly includes a second electric push rod, a connecting plate is fixedly installed at the telescopic end of the second electric push rod, a laser detector is fixedly installed at the bottom of the connecting plate, a display is fixedly installed at the front of the placement box, and the input end of the display and the output end of the laser detector are electrically connected.

[0016] As a further description of the above technical solution:

[0017] The rotating assembly includes a motor, the bottom of which is fixedly installed on the bottom of the motor and the bottom of the inner wall of the placement box. A worm gear is fixedly installed on the output end of the motor. A round rod is fixedly installed on the bottom of the placement box. The bottom of the round rod is rotatably installed on the bottom of the inner wall of the placement box. A worm wheel is fixedly installed on the surface of the round rod. The worm gear and the worm wheel mesh.

[0018] As a further description of the above technical solution:

[0019] A rectangular block is rotatably mounted on the front end of the worm gear, and the bottom of the rectangular block is fixedly mounted on the bottom of the inner wall of the placement box.

[0020] This utility model has the following beneficial effects:

[0021] 1. The design of the rotating rod, gear and four sets of toothed plates in the limiting component of this utility model, through the rotation of the rotating rod, drives the toothed plates to move synchronously, so that the connecting block drives the semi-circular locking block to limit the grinding rod from all sides, thereby adapting to grinding rods of different diameters, making the limiting more stable, avoiding the grinding rod from shaking during the detection process, and ensuring measurement accuracy.

[0022] 2. In this utility model, the second electric push rod in the detection component drives the laser detector to move up and down, which can adapt to the detection needs of grinding rods of different heights. The laser detector is electrically connected to the display, which can display the detection data in real time, making it convenient for operators to obtain the results intuitively.

[0023] 3. In this utility model, the motor in the rotating component drives the placement box to rotate smoothly through the meshing transmission of the worm and worm wheel. This ensures that the speed of the placement box is stable during rotation, avoiding the impact of speed fluctuations on the detection accuracy. At the same time, the rotation angle can be precisely controlled to achieve all-round concentricity detection of the grinding rod. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the placement box of this utility model;

[0025] Figure 2 This is a cross-sectional view of the placement box of this utility model;

[0026] Figure 3 This is a top view of the placement box of this utility model;

[0027] Figure 4 This is a bottom sectional view of the placement box of this utility model;

[0028] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0029] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B in the middle.

[0030] Legend:

[0031] 1. Mounting base; 2. Placement box; 3. Placement container; 4. Limiting assembly; 41. Rotating rod; 42. Gear; 43. Tooth plate; 44. Connecting block; 45. Semi-circular locking block; 46. First electric push rod; 5. Detection assembly; 51. Second electric push rod; 52. Connecting plate; 53. Laser detector; 54. Display; 6. Rotating assembly; 61. Motor; 62. Worm gear; 63. Round rod; 64. Worm wheel; 7. Limiting block; 8. Limiting groove; 9. Rectangular block. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1-6 This utility model provides an embodiment of a rapid automatic concentricity measurement device, including a mounting base 1, a placement box 2 fixedly mounted on the top of the mounting base 1, a placement container 3 inside the placement box 2, a limiting component 4 for limiting the grinding rod inside the placement container 3, a detection component 5 for detecting the grinding rod inside the placement container 2, and a rotation component 6 for driving the placement container 3 to rotate inside the placement container 2. Through the cooperation of the limiting component 4, the detection component 5, and the rotation component 6, the problem of unstable limiting of the grinding rod in traditional concentricity measurement devices, which leads to inaccurate detection results, is solved. The limiting component 4 can stably limit the grinding rod, ensuring the stable position of the grinding rod during the measurement process. The detection component 5 can accurately detect the concentricity of the grinding rod. The rotation component 6 drives the placement container 3 to rotate, realizing all-round detection of the grinding rod.

[0034] Reference Figure 1-6The limiting component 4 includes a rotating rod 41, the bottom of which is rotatably mounted to the bottom of the inner wall of the placement box 3. A gear 42 is fixedly mounted on the surface of the rotating rod 41. Four sets of toothed plates 43 are arranged inside the placement box 3, and the toothed plates 43 mesh with the gears 42. A connecting block 44 is fixedly mounted on the outer side of the toothed plates 43, and the top of the connecting block 44 extends into the interior of the placement box 3. A semi-circular locking block 45 is fixedly mounted on the inner side of the connecting block 44. The design of the rotating rod 41, gear 42, and four sets of toothed plates 43 in the limiting component 4 allows the rotating rod 41 to rotate... The moving toothed plate 43 moves synchronously, causing the connecting block 44 to drive the semi-circular locking block 45 to limit the grinding rod from all sides, thus accommodating grinding rods of different diameters. The limiting is more stable, preventing the grinding rod from shaking during the test and ensuring measurement accuracy. A first electric push rod 46 is fixedly installed at the bottom of the inner wall of the placement box 3. The telescopic end of the first electric push rod 46 is fixedly installed on one side of one set of toothed plates 43. The first electric push rod 46 provides power for the movement of the toothed plates 43. By pushing one set of toothed plates 43, the synchronous movement of the remaining toothed plates 43 is achieved through the transmission of gear 42. The movement of the toothed plate 43 is precisely controlled, improving operational convenience and limiting stability. A limiting block 7 is fixedly installed on the top of the toothed plate 43. Four sets of limiting grooves 8 are provided inside the placement box 3. The limiting block 7 and the limiting grooves 8 are slidably installed. The sliding cooperation between the limiting block 7 and the limiting grooves 8 guides and limits the movement of the toothed plate 43, preventing it from shifting or tilting during movement and ensuring that the toothed plate 43 always moves in the preset direction. This ensures that the semi-circular locking block 45 can accurately limit the grinding rod. The detection component 5 includes a second... The electric push rod 51 has a connecting plate 52 fixedly installed at its telescopic end. A laser detector 53 is fixedly installed at the bottom of the connecting plate 52. A display 54 is fixedly installed on the front side of the placement box 2. The input end of the display 54 is electrically connected to the output end of the laser detector 53. The second electric push rod 51 in the detection assembly 5 drives the laser detector 53 to move up and down, which can adapt to the detection needs of grinding rods of different heights. The laser detector 53 is electrically connected to the display 54, which can display the detection data in real time, making it convenient for operators to obtain results intuitively.

[0035] Reference Figure 1-6The rotating assembly 6 includes a motor 61, the bottom of which is fixedly mounted to the bottom of the inner wall of the placement box 2. A worm gear 62 is fixedly mounted to the output end of the motor 61. A round rod 63 is fixedly mounted to the bottom of the placement box 3, and the bottom of the round rod 63 is rotatably mounted to the bottom of the inner wall of the placement box 2. A worm wheel 64 is fixedly mounted on the surface of the round rod 63. The worm gear 62 and the worm wheel 64 mesh. In the rotating assembly 6, the motor 61 drives the placement box 3 to rotate smoothly through the meshing of the worm gear 62 and the worm wheel 64, ensuring that the placement box 3 is stable. The rotation speed is stable during rotation, avoiding the impact of speed fluctuations on detection accuracy. At the same time, the rotation angle can be precisely controlled to achieve all-round concentricity detection of the grinding rod. A rectangular block 9 is rotatably installed at the front end of the worm 62. The bottom of the rectangular block 9 is fixedly installed on the bottom of the inner wall of the placement box 2. The rectangular block 9 supports the front end of the worm 62, enhancing the stability of the worm 62 during rotation and preventing the worm 62 from shaking or deviating due to one end being suspended. This ensures that the worm 62 and the worm wheel 64 always maintain good meshing.

[0036] Working principle: First, place the grinding rod to be tested into the center of the placement box 3, ensuring that the axis of the grinding rod is aligned with the rotation center of the placement box 3. Then, start the first electric push rod 46. The telescopic end of the first electric push rod 46 pushes a set of toothed plates 43 connected to it to move horizontally. Since the toothed plates 43 mesh with the gears 42, the movement of the toothed plates 43 drives the gears 42 and the rotating rod 41 to rotate, thereby driving the other three sets of toothed plates 43 to move synchronously towards the center. During the movement of the toothed plates 43, the top limiting block 7 slides along the limiting groove 8 in the placement box 3 to ensure that the toothed plates 43 move smoothly along the preset trajectory. The connecting block 44 on the outside of the toothed plates 43 drives the semi-circular locking block 45 to tighten synchronously from all sides until the inner wall of the semi-circular locking block 45 is tightly attached to the surface of the grinding rod, thus completing the stable limiting of the grinding rod.

[0037] Then, the second electric push rod 51 is activated. The telescopic end of the second electric push rod 51 drives the laser detector 53 to move up and down through the connecting plate 52. After adjusting the laser detector 53 to the height corresponding to the part of the grinding rod to be detected, the second electric push rod 51 is turned off.

[0038] Next, the motor 61 is started. The output end of the motor 61 drives the worm 62 to rotate. The worm 62 meshes with the worm wheel 64 on the surface of the round rod 63, driving the round rod 63 and the placement box 3 to rotate at a uniform speed, thereby driving the grinding rod to rotate synchronously. During the rotation of the grinding rod, the laser detector 53 emits laser light in real time and receives reflected signals to detect the concentricity deviation of each radial position of the grinding rod. The detection data is transmitted in real time to the display 54 on the front side of the placement box 2 through an electrical connection, and is displayed intuitively in numerical or image form, which is convenient for operators to monitor in real time.

[0039] After the grinding rod has completed the all-round inspection, the motor 61 is turned off, the placement box 3 stops rotating, the first electric push rod 46 is started in reverse, the toothed plate 43 and the semi-circular locking block 45 are driven to reset synchronously, the limit on the grinding rod is released, and the inspected grinding rod is taken out.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid automatic concentricity measurement device, comprising a mounting base (1), characterized in that: The mounting base (1) is fixedly mounted with a placement box (2), and the placement box (2) is provided with a placement box (3). The placement box (3) is provided with a limiting component (4) for limiting the grinding rod. The placement box (2) is provided with a detection component (5) for detecting the grinding rod. The placement box (2) is provided with a rotation component (6) for driving the placement box (3) to rotate.

2. The rapid automatic concentricity measurement device according to claim 1, characterized in that: The limiting component (4) includes a rotating rod (41), the bottom of the rotating rod (41) is rotatably mounted to the bottom of the inner wall of the placement box (3), a gear (42) is fixedly mounted on the surface of the rotating rod (41), four sets of toothed plates (43) are provided inside the placement box (3), the toothed plates (43) and the gears (42) mesh, a connecting block (44) is fixedly mounted on the outer side of the toothed plates (43), the top of the connecting block (44) extends through the interior of the placement box (3), and a semi-circular locking block (45) is fixedly mounted on the inner side of the connecting block (44).

3. The rapid automatic concentricity measurement device according to claim 2, characterized in that: The bottom of the inner wall of the placement box (3) is fixedly installed with a first electric push rod (46), and the telescopic end of the first electric push rod (46) and one side of one of the toothed plates (43) are fixedly installed.

4. The rapid automatic concentricity measurement device according to claim 2, characterized in that: A limiting block (7) is fixedly installed on the top of the toothed plate (43), and four sets of limiting grooves (8) are opened inside the placement box (3). The limiting block (7) and the limiting grooves (8) are slidably installed.

5. The rapid automatic concentricity measurement device according to claim 1, characterized in that: The detection component (5) includes a second electric push rod (51), a connecting plate (52) is fixedly installed at the telescopic end of the second electric push rod (51), a laser detector (53) is fixedly installed at the bottom of the connecting plate (52), and a display (54) is fixedly installed on the front side of the placement box (2). The input end of the display (54) and the output end of the laser detector (53) are electrically connected.

6. The rapid automatic concentricity measurement device according to claim 1, characterized in that: The rotating assembly (6) includes a motor (61), the bottom of which is fixedly installed on the bottom of the inner wall of the placement box (2), a worm gear (62) is fixedly installed on the output end of the motor (61), a round rod (63) is fixedly installed on the bottom of the placement box (3), the bottom of which is rotatably installed on the bottom of the inner wall of the placement box (2), a worm wheel (64) is fixedly installed on the surface of the round rod (63), and the worm gear (62) and the worm wheel (64) mesh.

7. The rapid automatic concentricity measurement device according to claim 6, characterized in that: A rectangular block (9) is rotatably mounted on the front end of the worm (62), and the bottom of the rectangular block (9) is fixedly mounted on the bottom of the inner wall of the placement box (2).