A collimating positioning tool for use in a high electromagnetic radiation environment

Abstract

The present application relates to positioning tool technical field, provide a kind of for strong electromagnetic radiation environment under collimating positioning tool, including pull rod and base, pull rod is used to hoist load, further include: guide rod, guide rod is longitudinally arranged, the lower end of guide rod is connected with base;Conical barrel, conical barrel is slidably connected with guide rod, the open direction of conical barrel is upward, conical barrel includes annular guide slot and limit hole, limit hole is adapted to the bottom of pull rod;Electric push rod, electric push rod is longitudinally arranged, two ends of electric push rod are fixedly connected with base and conical barrel respectively.The present application provides a kind of for strong electromagnetic radiation environment under collimating positioning tool, electric push rod can drive conical barrel to move upward when elongation, so the bottom of pull rod will be contacted with the inner wall of annular guide slot, and finally inserted into limit hole, to be able to quickly make pull rod stop, also can avoid personnel into high pressure experimental area.

Description

Technical Field

[0001] This invention relates to the field of positioning fixture technology, and more specifically to a collimation and positioning fixture for use in environments with strong electromagnetic radiation. Background Technology

[0002] Linear induction accelerators (LIAs) are accelerators developed in the 20th century suitable for accelerating high-current pulsed beams (electron beam currents can reach the ka / kA level), and they play an indispensable role in defense, energy, and basic scientific research. To obtain stable, high-quality high-current pulsed beams, extensive fundamental experimental research must be conducted in high-voltage laboratories with strong electromagnetic radiation.

[0003] In a research project on the performance of a component of a linear induction accelerator, the tie rod needs to be gradually loaded with loads of varying weights (0.1-5t) to obtain crucial experimental data. When the center of gravity of the load and the tie rod are not aligned, the tie rod exhibits significant swaying. As the load weight increases, the amplitude and duration of this swaying intensify. Furthermore, the load weight causes elastic deformation in the tie rod, resulting in up-and-down vibrations, which also increase in amplitude and duration with increasing load weight. To ensure accurate and valid experimental data, the tie rod must be absolutely stationary after loading. Previously, the solution was to manually intervene and stop the swaying after each loading operation, requiring personnel to enter the experimental area.

[0004] This leads to the following problems:

[0005] 1. The high-voltage test area has strong electromagnetic radiation and high voltage, and frequent entry and exit can have adverse effects on the health of personnel.

[0006] 2. Without external intervention, the lever's self-stopping would waste a lot of time and reduce experimental efficiency. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a collimation and positioning fixture for use in environments with strong electromagnetic radiation, which can quickly stop the lever and prevent personnel from entering the high-voltage test area.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a collimation and positioning fixture for use in strong electromagnetic radiation environments, comprising a pull rod and a base, wherein the pull rod is used for suspending a load, and further comprising:

[0009] A guide rod, which is arranged longitudinally, and the lower end of the guide rod is connected to the base;

[0010] A tapered cylinder is slidably connected to the guide rod, with the opening of the tapered cylinder facing upwards. The tapered cylinder includes an annular guide groove and a limiting hole, the limiting hole being adapted to the bottom of the pull rod.

[0011] An electric actuator is provided, which is arranged longitudinally, and its two ends are fixedly connected to the base and the conical cylinder, respectively.

[0012] Furthermore, the tie rod includes a connecting post, a square rod, and a cylindrical rod;

[0013] The number of connecting columns is multiple, and the multiple connecting columns are arranged longitudinally at intervals, with adjacent connecting columns being threaded together. A tapered column is fixedly installed on each connecting column. A square rod is arranged longitudinally and fixedly connected to the lowest connecting column. The cross-section of the square rod is square. A cylindrical rod is arranged longitudinally and fixedly connected to the square rod.

[0014] Furthermore, it also includes a pressing mechanism and a driving mechanism;

[0015] The pressing mechanism includes a vertical rod, a guide ring, and four pressing components. The vertical rod is arranged longitudinally and fixedly connected to the base. The guide ring is arranged transversely above the conical cylinder and fixedly connected to the vertical rod. The guide ring has four guide grooves that extend longitudinally and radially. The four guide grooves correspond one-to-one with the four outer peripheral surfaces of the square rod. The four pressing components correspond one-to-one with the four guide grooves. Each pressing component includes a guide post and a pressing rod. The guide post is disposed in the guide groove and slides in contact with the inner wall of the guide groove. The pressing rod is fixedly installed transversely on the guide post.

[0016] The drive mechanism is used to control the four guide posts to move synchronously within their corresponding guide slots.

[0017] Furthermore, the driving mechanism includes an electric turntable and a rotating ring. The electric turntable is mounted on the base and rotatably connected to the base. The electric turntable is fixedly connected to the guide rod. The rotating ring is arranged laterally at the bottom of the guide ring and rotatably connected to the guide ring. The rotating ring is fixedly connected to the guide rod. The rotating ring has four arc-shaped grooves that run longitudinally through the ring and extend radially. The four arc-shaped grooves correspond one-to-one with the four guide grooves. The inner wall of the arc-shaped grooves slides in contact with the corresponding guide post.

[0018] Furthermore, an upper baffle and a lower baffle are fixedly installed at the top and bottom of the guide post, respectively, and the upper baffle and the lower baffle are in contact with the guide ring and the rotating ring, respectively.

[0019] Furthermore, it also includes a detection mechanism, which includes a fixing ring and four laser displacement sensors. The fixing ring is located above the guide ring and is fixedly connected to the upright. The four laser displacement sensors are all fixedly installed on the fixing ring and correspond one-to-one with the four outer peripheral surfaces of the square rod.

[0020] Furthermore, a spherical portion is formed at the bottom of the cylindrical rod.

[0021] The beneficial effects of the present invention are as follows: The present invention provides a collimation and positioning fixture for use in strong electromagnetic radiation environments. When the electric push rod extends, it can drive the conical cylinder to move upward. In this way, the bottom of the pull rod will contact the inner wall of the annular guide groove and finally insert into the limiting hole, thereby quickly stopping the pull rod and preventing personnel from entering the high-voltage test area. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from a first perspective;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0024] Figure 3 This is a front view structural diagram of the present invention;

[0025] Figure 4 A three-dimensional structural diagram of the guide ring and rotating ring from a first-view perspective;

[0026] Figure 5 A three-dimensional structural diagram of the guide ring and rotating ring from a second perspective;

[0027] Figure 6 A front view schematic diagram of the structure of the rotating ring;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the guide ring

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the tie rod.

[0030] Reference numerals: 10-Pull rod, 11-Base, 12-Load, 13-Connecting column, 14-Square rod, 15-Cylindrical rod, 16-Conical column, 17-Spherical part, 20-Guide rod, 30-Conical cylinder, 31-Annular guide groove, 32-Limiting hole, 40-Electric push rod, 50-Pressing mechanism, 51-Upright rod, 52-Guide ring, 53-Guide groove, 60-Pressing assembly, 61-Guide column, 62-Pressing rod, 63-Upper baffle, 64-Lower baffle, 70-Drive mechanism, 71-Electric turntable, 72-Rotating ring, 73-Arc groove, 80-Detection mechanism, 81-Fixing ring, 82-Laser displacement sensor. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0035] like Figures 1-8 As shown, the present invention provides a collimation and positioning fixture for use in strong electromagnetic radiation environments, including a pull rod 10 and a base 11. The pull rod 10 is used to hoist a load 12. It also includes a guide rod 20, a tapered cylinder 30 and an electric push rod 40.

[0036] The guide rod 20 is arranged longitudinally, and the lower end of the guide rod 20 is connected to the base 11.

[0037] The tapered cylinder 30 is slidably connected to the guide rod 20, with the opening of the tapered cylinder 30 facing upwards. The tapered cylinder 30 includes an annular guide groove 31 and a limiting hole 32. The limiting hole 32 is located below the annular guide groove 31 and communicates with the annular guide groove 31. The limiting hole 32 is adapted to the bottom of the pull rod 10.

[0038] The electric push rod 40 is arranged longitudinally, and its two ends are fixedly connected to the base 11 and the conical cylinder 30, respectively.

[0039] In use, the operator first hoists the load 12 onto the pull rod 10, at which point the pull rod 10 and the load 12 will swing. Then, the operator controls the electric push rod 40 to extend. When the electric push rod 40 extends, it can drive the conical cylinder 30 to move upward. In this way, the bottom of the pull rod 10 will contact the inner wall of the annular guide groove 31. The annular guide groove 31 guides the pull rod 10, so that the pull rod 10 gradually aligns with the limiting hole 32 and finally inserts into the limiting hole 32. At this time, the pull rod 10 is in a vertical state, which can quickly stop the swing of the pull rod 10 and prevent personnel from entering the high-voltage test area.

[0040] After the pull rod 10 and the load 12 stop swinging, the staff controls the electric push rod 40 to retract. When the electric push rod 40 retracts, it will drive the conical cylinder 30 to descend until the pull rod 10 disengages from the limiting hole 32 and the annular limiting groove.

[0041] In one embodiment, the pull rod 10 includes a connecting post 13, a square rod 14, and a cylindrical rod 15.

[0042] There are multiple connecting posts 13, which are arranged longitudinally at intervals and are threaded together between adjacent connecting posts 13. A tapered post 16 is fixedly installed on the connecting post 13. A square rod 14 is arranged longitudinally and fixedly connected to the lowermost connecting post 13. The cross-section of the square rod 14 is square. A cylindrical rod 15 is arranged longitudinally and fixedly connected to the square rod 14.

[0043] The tie rod 10 is made of 45 steel with high yield strength and has been treated with normalizing and tempering to improve its comprehensive mechanical properties such as strength and toughness. It can carry a maximum load 10t 12.

[0044] When the load 12 is mounted, the tapered post 16 on the pull rod 10 has a guiding function, which can achieve coaxial positioning of the axis of the pull rod 10 and the axis of the load 12, avoiding large swings caused by misalignment. The operator can simply put the load 12 onto the corresponding tapered post 16.

[0045] In one embodiment, it further includes a pressing mechanism 50 and a driving mechanism 70.

[0046] The pressing mechanism 50 includes a vertical rod 51, a guide ring 52, and four pressing components 60. The vertical rod 51 is arranged longitudinally and fixedly connected to the base 11. The guide ring 52 is arranged transversely above the conical cylinder 30 and fixedly connected to the vertical rod 51. The guide ring 52 has four guide grooves 53 that extend longitudinally and radially, and the four guide grooves 53 correspond one-to-one with the four outer peripheral surfaces of the square rod 14. The four pressing components 60 correspond one-to-one with the four guide grooves 53. The pressing component 60 includes a guide post 61 and a pressing rod 62. The guide post 61 is arranged longitudinally within the guide groove 53 and slides in contact with the inner wall of the guide groove 53. The pressing rod 62 is fixedly installed transversely on the guide post 61 and is located above the guide ring 52.

[0047] The drive mechanism 70 is used to control the four guide posts 61 to move synchronously in the corresponding guide grooves 53.

[0048] When the pull rod 10 is inserted into the limiting hole 32, the drive mechanism 70 controls the four guide posts 61 to move inward synchronously in the corresponding guide grooves 53 until the pressing rod 62 contacts the outer peripheral surface of the square rod 14, thereby keeping the pull rod 10 and the load 12 stable.

[0049] After the pull rod 10 and load 12 stop moving, the operator controls the electric push rod 40 to retract. As the electric push rod 40 retracts, it drives the conical cylinder 30 to slowly descend. At the same time, the pressing rod 62 also slowly descends until the pull rod 10 disengages from the limiting hole 32. Then, the drive mechanism 70 controls the four guide posts 61 to move outward synchronously in the corresponding guide grooves 53 until the pressing rod 62 disengages from the corresponding outer peripheral surface of the square rod 14. The electric push rod 40 then continues to descend.

[0050] This design ensures that when the pull rod 10 disengages from the limiting hole 32, the pull rod 10 and the load 12 remain stationary due to the action of the four pressing rods 62. Then, the pressing rods 62 disengage from the corresponding outer circumferential surface of the square rod 14, and the electric push rod 40 can continue to descend. This design avoids the shaking caused by the pull rod 10 suddenly disengaging from the limiting hole 32, further improving the stability of the invention.

[0051] In one embodiment, the drive mechanism 70 includes an electric turntable 71 and a rotating ring 72. The electric turntable 71 is laterally disposed on and rotatably connected to the base 11, and is fixedly connected to the guide rod 20. The rotating ring 72 is laterally disposed at the bottom of the guide ring 52 and is rotatably connected to the guide ring 52. The rotating ring 72 is fixedly connected to the guide rod 20, and has four arc-shaped grooves 73 that extend longitudinally and radially. The four arc-shaped grooves 73 correspond one-to-one with the four guide grooves 53, and the inner wall of the arc-shaped grooves 73 slides in contact with the corresponding guide post 61.

[0052] When the drive mechanism 70 is started, the operator can start the electric turntable 71. The electric turntable 71 will drive the rotating ring 72 to rotate through the guide rod 20. Under the cooperation of the corresponding guide groove 53 and arc groove 73, the four guide columns 61 will drive the corresponding pressing rods 62 to move inward or outward synchronously.

[0053] This drive mechanism 70 has a simple structure and is easy to manufacture and use.

[0054] In one embodiment, an upper baffle 63 and a lower baffle 64 are fixedly installed at the top and bottom of the guide post 61, respectively, and the upper baffle 63 and the lower baffle 64 are in contact with the guide ring 52 and the rotating ring 72, respectively.

[0055] The design of the upper baffle 63 and the lower baffle 64 can keep the position of the guide post 61 stable to prevent it from wobbling up and down.

[0056] In one embodiment, a detection mechanism 80 is further included, which includes a fixing ring 81 and four laser displacement sensors 82. The fixing ring 81 is disposed above the guide ring 52 and is fixedly connected to the upright rod 51. The four laser displacement sensors 82 are all fixedly mounted on the fixing ring 81 and correspond one-to-one with the four outer peripheral surfaces of the square rod 14.

[0057] Preferably, the guide ring 52, the rotating ring 72, and the fixed ring 81 are arranged coaxially.

[0058] Four laser displacement sensors 82 are positioned in pairs, with the line connecting them at a 90° angle, and their intersection point is at the center of the inner diameter of the fixing ring 81. In use, the laser beams from the four laser displacement sensors 82 are perpendicularly projected onto the four outer circumferential surfaces of the square rod 14. By collecting the readings, the relative position of the center of the inner diameter of the fixing ring 81 and the axis of the pull rod 10 can be accurately determined.

[0059] In one embodiment, a spherical portion 17 is formed at the bottom of the cylindrical rod 15 to reduce the frictional force experienced by the pull rod 10 when it contacts the inner wall of the annular guide groove 31.

[0060] 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 basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A collimation and positioning fixture for use in environments with strong electromagnetic radiation, comprising a pull rod and a base, wherein the pull rod is used to suspend a load, characterized in that: Also includes: A guide rod, which is arranged longitudinally, and the lower end of the guide rod is connected to the base; A tapered cylinder is slidably connected to the guide rod, with the opening of the tapered cylinder facing upwards. The tapered cylinder includes an annular guide groove and a limiting hole, the limiting hole being adapted to the bottom of the pull rod. An electric actuator is provided, which is arranged longitudinally, and its two ends are fixedly connected to the base and the conical cylinder, respectively.

2. The collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 1, characterized in that: The tie rod includes a connecting column, a square rod, and a cylindrical rod; The number of connecting columns is multiple, and the multiple connecting columns are arranged longitudinally at intervals, with adjacent connecting columns being threaded together. A tapered column is fixedly installed on each connecting column. A square rod is arranged longitudinally and fixedly connected to the lowest connecting column. The cross-section of the square rod is square. A cylindrical rod is arranged longitudinally and fixedly connected to the square rod.

3. The collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 2, characterized in that: It also includes a pressing mechanism and a driving mechanism; The pressing mechanism includes a vertical rod, a guide ring, and four pressing components. The vertical rod is arranged longitudinally and fixedly connected to the base. The guide ring is arranged transversely above the conical cylinder and fixedly connected to the vertical rod. The guide ring has four guide grooves that extend longitudinally and radially. The four guide grooves correspond one-to-one with the four outer peripheral surfaces of the square rod. The four pressing components correspond one-to-one with the four guide grooves. Each pressing component includes a guide post and a pressing rod. The guide post is disposed in the guide groove and slides in contact with the inner wall of the guide groove. The pressing rod is fixedly installed transversely on the guide post. The drive mechanism is used to control the four guide posts to move synchronously within their corresponding guide slots.

4. The collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 3, characterized in that: The driving mechanism includes an electric turntable and a rotating ring. The electric turntable is mounted on the base and rotatably connected to the base. The electric turntable is fixedly connected to the guide rod. The rotating ring is arranged laterally at the bottom of the guide ring and rotatably connected to the guide ring. The rotating ring is fixedly connected to the guide rod. The rotating ring has four arc-shaped grooves that run longitudinally through the ring and extend radially. The four arc-shaped grooves correspond one-to-one with the four guide grooves. The inner wall of the arc-shaped grooves slides in contact with the corresponding guide post.

5. The collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 4, characterized in that: An upper baffle and a lower baffle are fixedly installed at the top and bottom of the guide post, respectively, and the upper baffle and the lower baffle are in contact with the guide ring and the rotating ring, respectively.

6. The collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 5, characterized in that: It also includes a detection mechanism, which includes a fixing ring and four laser displacement sensors. The fixing ring is located above the guide ring and is fixedly connected to the upright. The four laser displacement sensors are all fixedly installed on the fixing ring and correspond one-to-one with the four outer peripheral surfaces of the square rod.

7. A collimation and positioning fixture for use in a strong electromagnetic radiation environment according to claim 2, characterized in that: The bottom of the cylindrical rod has a spherical portion.

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