Laser measuring device for detecting inner diameter and outer diameter of sealing oil seal

Abstract

The invention relates to the field of laser measuring devices, and discloses a laser measuring device for detecting the inner and outer diameters of a sealing oil seal, which comprises a machine body, an auxiliary assembly is arranged at the upper end of the machine body, part of the auxiliary assembly is located in the middle of the machine body, and a limiting assembly is arranged at the upper end of the auxiliary assembly. The laser measuring device comprises a machine body, an auxiliary assembly and a limiting assembly are arranged in the machine body, the limiting assembly is clamped into the upper end of the auxiliary assembly and the upper end of the machine body through buckles, a rotating mounting base is arranged in the machine body, and the rotating mounting base and the auxiliary assembly are concentrically arranged. Station switching and closed detection are realized through cooperation of a single gravity overturning action, and the contradiction of poor portability, weak interference resistance and low efficiency is solved; complex peripheral superposition is avoided, reliability and portability are improved through the simplest mechanical principle, and meanwhile the manufacturing cost and the process difficulty are effectively controlled.

Description

Technical Field

[0001] This invention relates to the field of laser measurement device technology, specifically a laser measurement device for detecting the inner and outer diameters of a sealed oil seal. Background Technology

[0002] The patent application with publication number CN120820489A includes a glass inspection tray with a conveyor belt on its outer side. The oil seals on the conveyor belt are unevenly distributed. A drive assembly is located at the upper end of the connection between the conveyor belt and the glass inspection tray. A guide assembly is installed on one side of the drive assembly. When in use, the device transports the oil seals to the glass inspection tray for visual inspection via the conveyor belt. The drive assembly drives the oil seals to rotate on the glass inspection tray, while the guide assembly ensures that the distance between the oil seals and the edge of the glass inspection tray is consistent. The oil seal patterns are always perpendicular to the center, which greatly reduces the misjudgment of tilted stripes as cracks, improves inspection accuracy, and ensures reliable oil seal quality inspection. The advantages are as follows: First, the drive motor drives the guide plate to rotate, and at the same time, the transmission belt links the rotating plate and gear column, so that the glass detection plate and the guide plate rotate synchronously. With the help of the guide plate, the positional deviation caused by the front and rear oil seals is avoided. Next, the oil seal enters the guide assembly. The sensor on the guide shell first identifies the front and back. If it is the back, the servo motor drives the electric telescopic rod to rotate and adjust the clamping plate to ensure that the detection benchmark is consistent. Finally, the oil seal enters the guide shell second. After the photoelectric sensor at the top of the second guide shell detects that the oil seal has fully entered, the hydraulic rod pushes the piston plate to squeeze the gas in the slide groove. The gas is driven by the guide groove to rotate the limiting rod of the limiting assembly to a vertical state. With the help of the roller of the telescopic rod, the oil seal is accurately positioned directly below the detection ring. Then, the laser detector positions the pattern, and the drive motor second drives the gear to rotate the oil seal, so that the pattern is strictly perpendicular to the center of the glass detection plate.

[0003] In the prior art, including the aforementioned patents, automated, non-contact optical inspection has become a development trend in the field of oil seal inspection. Numerous related solutions already exist in the prior art; for example, the patented solution disclosed above represents a mainstream technical approach: it achieves automated laser scanning inspection of the oil seal sealing surface by setting up a laser displacement sensor, a rotary drive mechanism for driving the oil seal rotation, and a mechanical positioning mechanism composed of a guide assembly and a limiting rod.

[0004] However, the existing technical solutions represented above are essentially designed for fixed automated production lines, which leads to the following inherent and insurmountable defects when dealing with flexible, on-site inspection requirements: (1) The system is fixed and bulky, making it unportable: This solution relies on a conveyor belt, a rotary motor, a glass inspection plate, and a fixed base to form a complete workstation. Its structure is complex and its size is large, and it is strictly limited to a specific location on the production line, completely losing its mobility. This makes it unsuitable for maintenance sites, incoming material inspection areas, or multi-variety, small-batch production scenarios outside the production line, and it cannot meet the modern flexible production needs of "anytime, anywhere" rapid inspection.

[0005] (2) The detection environment is completely open, resulting in poor anti-interference ability and reliability: The laser scanning process of this scheme is carried out on an open conveyor belt and glass plate. Stray light in the environment will seriously interfere with the signal reception of the laser sensor, causing fluctuations in measurement data; at the same time, workshop dust and oil stains can easily directly contaminate the glass detection plate and laser lens, which serve as key references, affecting not only the accuracy of single measurements, but also increasing the burden of frequent cleaning and maintenance. The long-term measurement stability in adverse industrial environments is questionable.

[0006] (3) Lack of safety protection, and the contradiction between efficiency and safety: The patented solution does not provide any physical isolation for the laser scanning area, which poses a risk of accidental laser irradiation into the eyes. If protection is to be added, a large protective cover or isolation room must be installed around the equipment, which will further increase the size of the equipment, increase the cost, and make the loading and unloading of workpieces extremely inconvenient. In essence, the convenience and efficiency of operation are sacrificed for safety.

[0007] (4) Single-station serial operation has a bottleneck in overall efficiency: its workflow is a typical "loading-positioning-rotation detection-unloading" serial mode. When inspecting a workpiece, the entire system must wait and cannot prepare for the next workpiece. The idle time of the equipment during workpiece changeover becomes the core bottleneck for improving the inspection throughput. In summary, the shortcomings of existing technologies, represented by the aforementioned patents, stem from a core contradiction: they attempt to solve a field testing problem requiring integration, flexibility, and high reliability using a complex, large, and fixed single-function system. They treat "measurement," "protection," "safety," and "efficiency" as independent problems requiring additional equipment (such as protective covers or multi-station production lines), resulting in redundant and cumbersome overall equipment. Summary of the Invention

[0008] The problem this invention aims to solve is to create a highly integrated device that, while maintaining the high precision of laser non-contact measurement, simultaneously and collaboratively addresses four major issues: portability, environmental interference resistance, intrinsic safety, and operational efficiency, based on mechanical principles.

[0009] To solve the above-mentioned technical problems, the technical solution of the present invention is: a laser measuring device for detecting the inner and outer diameters of a sealing oil seal, comprising a body, an auxiliary component being provided at the upper end of the body, a portion of the auxiliary component being located in the middle of the body, a limiting component being provided at the upper end of the auxiliary component, the limiting component being snapped into the auxiliary component and the upper end of the body by a buckle, a rotating mounting seat being provided inside the body, the rotating mounting seat being concentrically arranged with the auxiliary component, a laser sensor being fixedly installed inside the rotating mounting seat, connecting seats being provided at both ends of the body, and a base assembly being provided around the lower end of the body; The auxiliary component includes a mounting cylinder, an electric telescopic rod is fixedly installed inside the mounting cylinder, a mounting ring is fixedly installed at the upper end of the electric telescopic rod, a placement platform is installed inside the mounting ring, the placement platform is connected to the mounting ring via a rotating shaft, a magnet is fixedly installed at the upper end of the placement platform, and the placement platform is configured as an incomplete sphere. The limiting component includes a base, with a plurality of push plates at the upper end of the base, and a rotating disk at the upper end of each push plate. The push plates are slidably connected to the rotating disk and the base.

[0010] Preferably, the mounting cylinder is fixedly connected to the machine body, with the upper part of the mounting cylinder located at the upper end of the machine body and the lower end of the mounting cylinder located inside the machine body and flush with the lower end of the machine body. The mounting cylinder is fixedly connected to the machine body through a connecting bracket.

[0011] Preferably, two electric telescopic rods are provided, which are evenly distributed around the center of the mounting cylinder. The electric telescopic rods are specifically located in the middle of the mounting cylinder. The electric telescopic rods are rotatably connected to the mounting ring, which does not contact the mounting cylinder. The electric telescopic rods and the connecting seat are located on the same side. The mounting ring can be controlled by the electric telescopic rods to move up and down inside the mounting cylinder.

[0012] Preferably, the upper surface of the placement platform is horizontal, the lower surface of the placement platform is curved, the weight of the lower half of the placement platform is greater than the weight of the upper half, the rotating shaft is divided into two parts, one part of the rotating shaft is fixedly connected to the placement platform, and the other part of the rotating shaft is fixedly connected to the mounting ring. The two parts of the rotating shaft are connected and can rotate freely by bolts and bearings. Two rotating shafts are evenly arranged around the center of the placement platform, and the rotating shafts are perpendicular to the electric telescopic rod.

[0013] Preferably, the weight of the magnet is always less than the weight of the upper half of the platform, the upper surface of the rotating mounting base is made of metal, the magnet can be magnetically attracted to one side of the upper surface of the rotating mounting base, there is always a gap between the magnet and the upper surface of the rotating mounting base, and it cannot be completely attracted to the surface of the rotating mounting base, and the inner wall of the mounting cylinder is also made of metal.

[0014] Preferably, the base is a disc, and the lower perimeter of the base is fixed with buckles. The base is fixed to the machine body and the mounting cylinder by the buckles. The upper end of the base is provided with several guide strips. The number of guide strips at the upper end of the base is the same as the number of push plates. The push plates and guide strips are evenly distributed around the center of the base.

[0015] Preferably, the base is a disc, and the lower perimeter of the base is fixed with buckles. The base is fixed to the machine body and the mounting cylinder by the buckles. The upper end of the base is provided with several guide strips. The number of guide strips at the upper end of the base is the same as the number of push plates. The push plates and guide strips are evenly distributed around the center of the base.

[0016] Preferably, the machine body is provided with upper and lower parts, and the machine body is connected by connecting seats on both sides. A bearing is provided on the side of the connecting seat away from the machine body. The connecting seat is connected to the base assembly through the bearing. The machine body can rotate freely on the base assembly under the action of the bearing.

[0017] Preferably, the base assembly includes two brackets, which are triangular in shape. The brackets are connected to the connecting seat via an mounting shaft located on their inner side. A crossbeam is provided on the inner side of the lower end of the two brackets. Both ends of the crossbeam are fixedly connected to the brackets. Several rotating plates are provided on both ends of the crossbeam. The rotating plates are rotatably connected to each other. A rubber pad is fixedly provided on the upper end of the rotating plate at the end away from the crossbeam.

[0018] Preferably, the rubber pad is used to limit the range of motion of other rotating plates. With the crossbeam as the dividing line, the rubber pad of the rotating plate located on one side of the crossbeam is set at its upper end, and the rubber pad is set at the lower end of the rotating plate. Several limiting blocks are fixedly set at the end of the rotating plate closest to the crossbeam. The limiting blocks are used to limit the range of motion of the rotating plate.

[0019] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) This invention integrates the automatic centering, gravity-assisted repositioning, closed detection, and parallel operation of oil seals into a single core architecture of "flip-type closed dual-station detection chamber". The single gravity flipping mechanical action coordinates the switching of detection stations, the establishment of a relatively closed measurement environment, and the gravity self-resetting of the detection reference surface. This fundamentally solves the contradiction between the poor portability, weak environmental anti-interference ability, and low operating efficiency of existing fixed detection equipment. It also solves the common problem of "easy interference from external stray light" in laser detection. In addition, the design of the placement platform and base components in this invention allows the oil seal to remain stationary relative to the laser sensor when being laser detected, thereby further improving the accuracy of laser detection. The design of this invention avoids the need to add complex peripherals for safety, dust prevention, and efficiency. It achieves multiple technical goals with the simplest mechanical principle and mechanical structure. While improving the reliability and portability of the equipment, it does not excessively increase the cost required for manufacturing the device or the difficulty of the production process. (2) This invention achieves a parallel operation mode of "testing one, preparing one" by setting up upper and lower double bodies and double placement platforms, which effectively utilizes time and improves the efficiency of continuous sampling inspection. The placement platform, in conjunction with the rotating shaft design, can adaptively maintain the horizontal plane of the upper end by gravity during the flipping process of the body, ensuring the stability of the oil seal posture during flipping and reducing the amount of offset. Furthermore, through the phased magnetic force action of the magnet on the inner wall of the metal mounting cylinder and the surface of the rotating mounting seat, active damping and shock reduction are achieved during the lifting process, and stable adsorption force is provided at the measurement position, thereby ensuring the extremely high static stability required for testing under portable conditions. In addition, the base assembly that can be transformed into a handle allows the equipment to have both table-fixed and handheld or suspended testing capabilities, expanding its application flexibility in complex scenarios such as maintenance sites and incoming material areas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention (without cover plate and base assembly); Figure 3 This is a schematic diagram of the single-unit structure of the device of the present invention; Figure 4 This is a top view of the internal structure of the machine body of the present invention; Figure 5 This is a schematic diagram of the overall bottom view of the device of the present invention; Figure 6 This is an exploded view of the limiting component of the present invention; Figure 7 This is a schematic diagram of the placement platform and related components of the present invention; Figure 8 For the present invention Figure 7Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the base assembly structure of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Body; 2. Auxiliary components; 201. Mounting cylinder; 202. Electric telescopic rod; 203. Mounting ring; 204. Rotating shaft; 205. Placement platform; 206. Magnet; 3. Limiting component; 301. Base; 302. Push plate; 303. Rotating disk; 304. Cover plate; 4. Rotating mounting seat; 5. Laser sensor; 6. Connecting seat; 7. Base assembly; 701. Bracket; 702. Crossbeam; 703. Rotating plate; 704. Rubber pad; 705. Limiting block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0024] like Figures 1 to 10 As shown, the present invention provides a laser measuring device for detecting the inner and outer diameters of a sealing oil seal, comprising a body 1, an auxiliary component 2 at the upper end of the body 1, some components of the auxiliary component 2 being located in the middle of the body 1, a limiting component 3 at the upper end of the auxiliary component 2, the limiting component 3 being snapped into the auxiliary component 2 and the upper end of the body 1 by a buckle, a rotating mounting seat 4 inside the body 1 being arranged concentrically with the auxiliary component 2, a laser sensor 5 being fixedly installed inside the rotating mounting seat 4, connecting seats 6 at both ends of the body 1, and a base assembly 7 around the lower end of the body 1; The auxiliary component 2 includes a mounting cylinder 201, an electric telescopic rod 202 is fixedly installed inside the mounting cylinder 201, a mounting ring 203 is fixedly installed at the upper end of the electric telescopic rod 202, a placement platform 205 is installed inside the mounting ring 203, the placement platform 205 is connected to the mounting ring 203 through a rotating shaft 204, a magnet 206 is fixedly installed at the upper end of the placement platform 205, and the placement platform 205 is configured as an incomplete sphere; The limiting component 3 includes a base 301, with a plurality of push plates 302 at the upper end of the base 301, and a rotating disk 303 at the upper end of the push plates 302. The push plates 302 are slidably connected to the rotating disk 303 and the base 301.

[0025] The mounting cylinder 201 is fixedly connected to the body 1. The upper part of the mounting cylinder 201 is located at the upper end of the body 1, and the lower end of the mounting cylinder 201 is located inside the body 1 and is flush with the lower end of the body 1. The mounting cylinder 201 is fixedly connected to the body 1 through a connecting bracket.

[0026] Two electric telescopic rods 202 are provided. The electric telescopic rods 202 are evenly distributed around the center of the mounting cylinder 201. The electric telescopic rods 202 are located in the middle of the mounting cylinder 201. The electric telescopic rods 202 are rotatably connected to the mounting ring 203. The mounting ring 203 does not contact the mounting cylinder 201. The electric telescopic rods 202 and the connecting seat 6 are located on the same side. The mounting ring 203 can be controlled by the electric telescopic rods 202 to move up and down inside the mounting cylinder 201.

[0027] The upper surface of the placement platform 205 is horizontal, and the lower surface of the placement platform 205 is curved. The weight of the lower half of the placement platform 205 is greater than that of the upper half. The rotating shaft 204 is divided into two parts. One part of the rotating shaft 204 is fixedly connected to the placement platform 205, and the other part of the rotating shaft 204 is fixedly connected to the mounting ring 203. The two parts of the rotating shaft 204 are connected and can rotate freely by bolts and bearings. There are two rotating shafts 204 evenly arranged around the center of the placement platform 205. The rotating shaft 204 is perpendicular to the electric telescopic rod 202.

[0028] The weight of magnet 206 is always less than the weight of the upper part of the placement platform 205. The upper surface of the rotating mounting base 4 is made of metal. Magnet 206 can be magnetically attracted to one side of the upper surface of the rotating mounting base 4. There is always a gap between magnet 206 and the upper surface of the rotating mounting base 4, so it cannot be completely attracted to the surface of the rotating mounting base 4. The inner wall of the mounting cylinder 201 is also made of metal.

[0029] The base 301 is a disc, and buckles are fixedly installed around its lower perimeter. The base 301 is fixed to the machine body 1 and the mounting cylinder 201 by the buckles. Several guide strips are provided on the upper end of the base 301. The number of guide strips on the upper end of the base 301 is the same as the number of push plates 302. The push plates 302 and the guide strips are evenly distributed around the center of the base 301. The surface of the rotating disk 303 is provided with several sliding grooves. The number and position of the sliding grooves on the rotating disk 303 are the same as those on the push plate 302. The push plate 302 is slidably connected to the rotating disk 303. The rotating disk 303 is rotatably connected to the base 301. The limiting component 3 also includes a cover plate 304, which is disposed at the upper end of the rotating disk 303. The rotating disk 303 is fixed to the base 301 by friction.

[0030] The body 1 is provided with upper and lower parts respectively. The body 1 is connected by connecting seats 6 on both sides. The side of the connecting seat 6 away from the body 1 is provided with a bearing. The connecting seat 6 is connected to the base assembly 7 through the bearing. The body 1 can rotate freely on the base assembly 7 under the action of the bearing.

[0031] The base assembly 7 includes two brackets 701, which are triangular in shape. The brackets 701 are connected to the connecting seat 6 via an mounting shaft located on their inner side. A crossbeam 702 is provided on the inner side of the lower end of the two brackets 701. The two ends of the crossbeam 702 are fixedly connected to the brackets 701. Several rotating plates 703 are provided on both ends of the crossbeam 702. The rotating plates 703 are rotatably connected to each other. A rubber pad 704 is fixedly provided on the upper end of the rotating plate 703 at the end away from the crossbeam 702.

[0032] Rubber pads 704 are used to limit the range of motion of other rotating plates 703. With the crossbeam 702 as the dividing line, the rubber pads 704 of the rotating plates 703 located on one side of the crossbeam 702 are set at their upper ends, while the rubber pads 704 of the rotating plates 703 located on the other side are set at their lower ends. Several limiting blocks 705 are fixedly set at the end of the rotating plate 703 closest to the crossbeam 702. The limiting blocks 705 are used to limit the range of motion of the rotating plates 703.

[0033] Working principle and usage process of this invention: The procedure for random inspection of oil seals is as follows: First, remove the cover plate 304. Then, rotate the rotating disk 303 to move the push plate 302 to the surrounding areas, exposing the placement platform 205. Next, place the oil seal to be tested on the upper part of the placement platform 205, and try to center it as much as possible. Finally, rotate the rotating disk 303 in the opposite direction to move the push plate 302 towards the center. Because the movement direction of all push plates 302 is towards the center of the placement platform 205, when the push plate 302 is fully retracted, it can push the oil seal towards the center of the placement platform 205, forcing the oil seal and the placement platform 205 into a concentric state.

[0034] After completing the above operations, remove the limiting component 3 from the device. Then rotate the machine body 1, causing the upper placement platform 205 and the upper part of the machine body 1 to rotate to the lower part. During the rotation, the placement platform 205 rotates under the action of gravity, and the upper plane of the placement platform 205 remains parallel to the ground through the interface between the mounting ring 203 and the rotating shaft 204. After the machine body 1 has rotated 180°, the upper surface of the placement platform 205 is located below the rotating mounting base 4, and at this time, the oil seal at the upper end of the placement platform 205 is located in the internal space of the mounting cylinder 201.

[0035] Subsequently, the electric telescopic rod 202 retracts, causing the placement platform 205 to move upwards. During this process, the magnet 206 first engages with the inner wall of the mounting cylinder 201, using magnetic force to reduce the frequency and amplitude of the swaying of the placement platform 205. Once the placement platform 205 has moved to the predetermined position, its movement approaches a standstill. Finally, the magnet 206 engages with the surface of the rotating mounting base 4, generating a uniform upward pulling force, thereby further stabilizing the placement platform 205.

[0036] After the placement platform 205 is stable, start the rotating mounting base 4 and laser sensor 5. Rotating the mounting base 4 drives the laser sensor 5 to rotate, and the inner and outer diameters of the oil seal can be detected by laser.

[0037] After the test is completed, the electric telescopic rod 202 automatically moves down, causing the placement platform 205 to reset. Once the electric telescopic rod 202 stops, the machine body 1 can be flipped over again. Readings can be taken while the tested oil seal sample is being removed, thus completing one test.

[0038] It is worth noting that the device is divided into upper and lower ends. If the number of samples to be inspected at one time is large, the next oil seal to be inspected can be placed on the upper end of the other placement platform 205 while the previous oil seal is being inspected, and the above positioning steps can be repeated. After the current inspection is completed, when the machine body 1 is flipped over, the new oil seal to be inspected can be transferred to the inspection station at the same time as the tested oil seal is removed, so as to achieve continuous inspection.

[0039] The device is used in two ways: If it is permissible to place the unit 1 on a flat surface, then simply place the stand 701 on the surface to begin use.

[0040] If there is no place to place the machine body 1 but testing is urgent, the pins at both ends of the rotating plate 703 can be removed to detach it from the bracket 701. Then, according to the installation position of the limit block 705, the rotating plate 703 can be rolled up in the corresponding direction to form a cylindrical handle. This handle can be used for both hand-holding and hanging, allowing for oil seal testing in various postures.

[0041] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A laser measuring device for detecting the inner and outer diameters of a sealed oil seal, comprising a body (1), characterized in that: An auxiliary component (2) is provided at the upper end of the body (1). Some components of the auxiliary component (2) are located in the middle of the body (1). A limiting component (3) is provided at the upper end of the auxiliary component (2). The limiting component (3) is snapped into the auxiliary component (2) and the upper end of the body (1) by a buckle. A rotating mounting seat (4) is provided inside the body (1). The rotating mounting seat (4) is concentrically arranged with the auxiliary component (2). A laser sensor (5) is fixedly installed inside the rotating mounting seat (4). Connecting seats (6) are provided at both ends of the body (1). A base component (7) is provided around the lower end of the body (1). The auxiliary component (2) includes a mounting cylinder (201), an electric telescopic rod (202) is fixedly installed inside the mounting cylinder (201), a mounting ring (203) is fixedly installed at the upper end of the electric telescopic rod (202), a placement platform (205) is installed inside the mounting ring (203), the placement platform (205) is connected to the mounting ring (203) through a rotating shaft (204), a magnet (206) is fixedly installed at the upper end of the placement platform (205), and the placement platform (205) is configured as an incomplete sphere; The limiting component (3) includes a base (301), and a plurality of push plates (302) are provided on the upper end of the base (301). A rotating disk (303) is provided on the upper end of the push plate (302). The push plate (302) is slidably connected to the rotating disk (303) and the base (301).

2. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The mounting cylinder (201) is fixedly connected to the body (1). The upper part of the mounting cylinder (201) is located at the upper end of the body (1), and the lower end of the mounting cylinder (201) is located inside the body (1) and is flush with the lower end of the body (1). The mounting cylinder (201) is fixedly connected to the body (1) through a connecting frame.

3. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: Two electric telescopic rods (202) are provided. The electric telescopic rods (202) are evenly distributed around the center of the mounting cylinder (201). The electric telescopic rods (202) are specifically located in the middle of the mounting cylinder (201). The electric telescopic rods (202) are rotatably connected to the mounting ring (203). The mounting ring (203) does not contact the mounting cylinder (201). The electric telescopic rods (202) and the connecting seat (6) are located on the same side. The mounting ring (203) can be controlled by the electric telescopic rods (202) to move up and down inside the mounting cylinder (201).

4. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The upper surface of the placement platform (205) is horizontal, and the lower surface of the placement platform (205) is curved. The weight of the lower half of the placement platform (205) is greater than that of the upper half. The rotating shaft (204) is divided into two parts. One part of the rotating shaft (204) is fixedly connected to the placement platform (205), and the other part of the rotating shaft (204) is fixedly connected to the mounting ring (203). The two parts of the rotating shaft (204) are connected and can rotate freely by bolts and bearings. There are two rotating shafts (204) evenly arranged around the center of the placement platform (205). The rotating shaft (204) is perpendicular to the electric telescopic rod (202).

5. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The weight of the magnet (206) is always less than the weight of the upper half of the placement platform (205). The upper surface of the rotating mounting base (4) is made of metal. The magnet (206) can be magnetically attracted to one side of the upper surface of the rotating mounting base (4). There is always a gap between the magnet (206) and the upper surface of the rotating mounting base (4), so it cannot be completely attracted to the surface of the rotating mounting base (4). The inner wall of the mounting cylinder (201) is also made of metal.

6. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The base (301) is configured as a disc. Buckles are fixedly provided at the lower ends of the base (301) around its perimeter. The base (301) is fixed to the machine body (1) and the mounting cylinder (201) by the buckles. Several guide strips are provided at the upper end of the base (301). The number of guide strips at the upper end of the base (301) is the same as the number of push plates (302). The push plates (302) and the guide strips are evenly distributed around the center of the base (301).

7. The laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The surface of the rotating disk (303) is provided with a number of sliding grooves. The number and position of the sliding grooves on the rotating disk (303) are consistent with those of the push plate (302). The push plate (302) is slidably connected to the rotating disk (303). The rotating disk (303) is rotatably connected to the base (301). The limiting component (3) also includes a cover plate (304). The cover plate (304) is set at the upper end of the rotating disk (303). The rotating disk (303) is fixed to the rotating disk (303) by friction.

8. A laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The body (1) is provided with upper and lower parts respectively. The body (1) is connected by connecting seats (6) on both sides. The side of the connecting seat (6) away from the body (1) is provided with a bearing. The connecting seat (6) is connected to the base assembly (7) through the bearing. The body (1) can rotate freely on the base assembly (7) under the action of the bearing.

9. A laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 1, characterized in that: The base assembly (7) includes two brackets (701), which are triangular in shape. The brackets (701) are connected to the connecting seat (6) via an installation shaft located on their inner side. A crossbeam (702) is provided on the inner side of the lower end of the two brackets (701). The two ends of the crossbeam (702) are fixedly connected to the brackets (701). Several rotating plates (703) are provided on both ends of the crossbeam (702). The rotating plates (703) are rotatably connected to each other. A rubber pad (704) is fixedly provided on the upper end of the rotating plate (703) at the end away from the crossbeam (702).

10. A laser measuring device for detecting the inner and outer diameters of a sealing oil seal according to claim 9, characterized in that: The rubber pad (704) is used to limit the range of motion of other rotating plates (703). With the crossbeam (702) as the dividing line, the rubber pad (704) of the rotating plate (703) located on one side of the crossbeam (702) is set on its upper end, and the rubber pad (704) is set on the lower end of the rotating plate (703) on the other side. Several limiting blocks (705) are fixedly set on the end of the rotating plate (703) closest to the crossbeam (702). The limiting blocks (705) are used to limit the range of motion of the rotating plate (703).

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