High-precision fastener for adjusting transverse and vertical positions of sliding rail

Abstract

The utility model discloses a high-precision fastener for adjusting transverse and vertical positions of a slide rail. The high-precision fastener comprises a bidirectional fine adjustment combination unit and a cover plate, a connecting cavity for accommodating a track and a supporting block matched and fixed with the cover plate are arranged in the bidirectional fine adjustment combination unit; the track is arranged in the connecting cavity and is fixed through the cover plate; a vertical adjusting assembly and a transverse adjusting assembly are arranged in the two-way fine adjustment combination unit, and the vertical adjusting assembly is arranged at the bottom of the two-way fine adjustment combination unit and connected with a concrete foundation. The transverse adjusting assembly is arranged at the lateral position of the bidirectional fine adjustment combination unit in an embedded mode, and the end of the transverse adjusting assembly can stretch out and draw back in the connecting cavity.

Description

Technical Field

[0001] This utility model relates to the field of magnetic levitation electromagnetic booster launch technology, and in particular to a high-precision fastener for adjusting the lateral and vertical positions of a slide rail. Background Technology

[0002] Electromagnetic sled systems are a new generation of ultra-high-speed ground dynamic testing facilities. They aim to use electromagnetic energy to replace chemical energy for propulsion, while utilizing magnetic levitation technology to eliminate frictional resistance and vibration during acceleration, thus accelerating the test load to the target speed and enabling dynamic environment testing. Traditional electromagnetic booster systems employ a U-shaped structure integrating levitation and propulsion, resulting in a low thrust density (thrust-to-weight ratio). Electromagnetic sleds, on the other hand, are also a type of ground-based ultra-high-speed testing facility using electromagnetic propulsion principles. By converting electromagnetic energy into the instantaneous kinetic energy required to launch the load, they can accelerate loads ranging from grams to tens of tons to high or ultra-high speeds over a relatively short distance. Currently, high-precision fasteners for adjusting the lateral and vertical positions of slide rails are also applied in some high-tech R&D industries or cutting-edge scientific fields, such as ultra-high-speed low-vacuum pipeline maglev transportation systems. Representative patents related to high-precision fasteners for adjusting the lateral and vertical positions of slide rails mainly include the following aspects:

[0003] Patent "A Rail Fastener and Rail Fastener System" (CN204959485U) discloses a rail fastener and rail fastener system for reducing the manufacturing cost of rail fasteners. Technically, this patent only addresses cost reduction without considering factors such as adjustment accuracy and time. Therefore, this solution will significantly increase the labor intensity and working hours of workers. Furthermore, the supporting parts have low strength, resulting in low reliability of the entire system under long-term outdoor work conditions. Patent "A Fastener System Capable of Suppressing Rail Tilting" (CN206986631U) discloses a rail fastener capable of suppressing rail tilting, solving the technical problem of existing rails easily tilting during use. It achieves a reasonable design of the rail fastener, suppressing rail tilting and achieving a higher level of safety. However, the mechanical structure in this patent uses bolts for positioning, which can lead to significant errors. Furthermore, the overall structure is complex, requiring considerable time for installation and resulting in substantial human and material costs. The patent "Construction Beam Rail Fastener" (CN201459534U) discloses a construction beam rail fastener that is fixed to both sides of a railway track to ensure the correct position of the rails, solving technical problems such as weak connection between the rail fastener and the crossbeam and unreliable circuit insulation. However, the structure described in this patent lacks flexibility, requiring high precision on all technical installation surfaces; otherwise, assembly work is difficult to perform according to the structure shown in the diagram, essentially lacking dimensional flexibility. The patent "A Universal Rail Fastener" (CN216663646U) discloses a universal rail fastener to meet the needs of various road sections and facilitate future adjustments and modifications. However, this patent shows too many structural components, affecting the stability and reliability of the structure; additionally, the required component dimensions are relatively large, unintentionally increasing the product's manufacturing cost. Considering the cumulative cost effect, the project is expected to face significant challenges in actual implementation.

[0004] The guide rail is the fundamental infrastructure for the operation of the electromagnetic sled, playing a crucial role in its performance. Its main functions include providing support, guidance, and vertical restraint. Therefore, the guide rail fastening system must simultaneously meet two special requirements: stepless vertical and horizontal adjustment and a large adjustment range. Conventional railway fastening systems cannot meet these functional requirements, necessitating the development of a new fastening system specifically designed for electromagnetic sled projects. Currently, the construction of guide rails in such projects in China faces numerous practical engineering challenges, including poor track fine-tuning capabilities, difficulty in replacing damaged rails, maintenance difficulties, and unsuitability for long-distance railway lines. Utility Model Content

[0005] The purpose of this utility model is to provide a high-precision fastener for adjusting the lateral and vertical positions of the slide rail, which addresses the above-mentioned shortcomings and solves the problems of poor track fine-tuning capability, difficulty in replacement after damage, difficult maintenance, and unsuitability for long-distance track construction in the existing technology.

[0006] This utility model is achieved through the following solution:

[0007] A high-precision fastener for adjusting the lateral and vertical positions of a slide rail includes a bidirectional fine-tuning assembly unit and a cover plate. The bidirectional fine-tuning assembly unit has a connecting cavity for accommodating the rail and a support block that cooperates with and is fixed to the cover plate. The rail is placed in the connecting cavity and fixed by the cover plate. The bidirectional fine-tuning assembly unit includes a vertical adjustment component and a lateral adjustment component. The vertical adjustment component is located at the bottom of the bidirectional fine-tuning assembly unit and connected to the concrete foundation. The lateral adjustment component is embedded in the side of the bidirectional fine-tuning assembly unit, and its end can extend and retract within the connecting cavity.

[0008] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the bidirectional fine-tuning assembly unit is also provided with a sliding guide unit and a connecting through hole that cooperates with the sliding guide unit. The sliding guide unit is disposed in the connecting through hole and is symmetrically arranged along the center position of the connecting cavity.

[0009] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the sliding guide unit includes a guide support cylinder, a limit nut, and a brass graphite guide sleeve. The bottom of the guide support cylinder is fixedly connected to the concrete foundation. The brass graphite guide sleeve is embedded in the connecting through hole and slidably disposed with the guide support cylinder. The guide support cylinder passes through the brass graphite guide sleeve and protrudes from the bidirectional fine-tuning assembly. The top of the guide support cylinder is provided with an external thread that mates with the limit nut. The limit nut is sleeved on the guide support cylinder.

[0010] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the connecting cavity is generally rectangular, the support blocks are located on the left and right sides of the connecting cavity, and the connecting cavity is also equipped with universal ball bearing rollers; multiple universal ball bearing rollers are arranged between adjacent support blocks.

[0011] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the universal ball bearing rollers are arranged on the center line connecting the adjacent support blocks along their length, and the universal ball bearing rollers are evenly spaced at 3 intervals on the center line.

[0012] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the support block is provided with multiple mating holes, which are arranged along the length of the support block; the cover plate is fixed to the mating holes by bolts.

[0013] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, a first through hole is provided on one side wall of the cover plate to cooperate with the mating hole, and a second through hole is provided on the other side wall to cooperate with the set screw. There are multiple first and second through holes. When the cover plate is fixed to the support block by bolts, the second through hole is located at the bottom of the track.

[0014] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the bidirectional fine-tuning assembly unit is provided with a lateral threaded through hole, a lateral precision adjusting bolt, and a lateral precision adjusting nut; the lateral threaded through holes are symmetrically arranged on the bidirectional fine-tuning assembly unit along the center of the support block, and there are a total of 4 sets; the lateral precision adjusting bolt passes through the lateral threaded through hole and extends into the connecting cavity, and the lateral precision adjusting nut is sleeved on the end position of the lateral precision adjusting bolt.

[0015] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the vertical adjustment component is a bolt jack, which includes a base, a locking nut, a lifting adjustment nut, a pressure-bearing boss, and a lifting screw. The base has a threaded hole that mates with the lifting screw. The lifting screw is fitted into the threaded hole, the pressure-bearing boss is located at the top of the lifting screw, the lifting adjustment nut is fixedly mounted on the lifting screw, and the locking nut is rotatably mounted on the lifting screw. The base is connected to a concrete foundation.

[0016] Based on the structure of the high-precision fastener used to adjust the lateral and vertical positions of the slide rail, the concrete foundation includes a concrete support platform, reserved wire holes, and embedded equipment mounting steel plates; the embedded equipment mounting steel plates are spaced apart on the concrete support platform, and the reserved wire holes are arranged between adjacent embedded equipment mounting steel plates.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This solution uses a connecting cavity to initially engage the track in a predetermined position. Then, by fixing the cover plate to the support block, the track is secured. When the track's height needs adjustment, the vertical adjustment component changes the height of the entire bidirectional fine-tuning unit, simultaneously altering the height of the track fixed to it. When the track's horizontal position needs adjustment, the horizontal adjustment component changes the horizontal position of the track fixed in the connecting cavity, thus achieving horizontal track adjustment. This solution enables efficient adjustment of the track in both vertical and horizontal directions.

[0019] 2. This solution adds a limiting copper sleeve during vertical accuracy adjustment to avoid the formation of a slope in the horizontal direction during the vertical accuracy adjustment of the rail, which would cause the rail to lose its levelness.

[0020] 3. In this scheme, a spiral jack is used to apply numerical directional support force for vertical accuracy adjustment. The support force is evenly applied to the rail segment whose accuracy needs to be adjusted through a two-degree-of-freedom sliding unit. A performance comparison analysis is conducted with the traditional bolt-type fasteners for adjusting both sides. The high-precision fasteners for adjusting the horizontal and vertical positions of the slide rail not only increase the adjustment accuracy, but also save nearly 50% of the accuracy adjustment time.

[0021] 4. In this solution, since the entire set of fasteners incorporates mechanical assembly components, the precision is far higher than that of traditional bolt-based fasteners. Therefore, the precision of the rails from the very beginning is much higher than that of traditional bolt-based fasteners. Consequently, the vertical and lateral errors of the rails that need to be adjusted will be very small, thereby appropriately reducing the number of fastener placement points. Compared to traditional bolt-based fasteners, the number of fastener placement points can be reduced by at least 30%.

[0022] 5. The core components of this solution, such as the dual-degree-of-freedom sliding unit, are all machined to ensure their dimensional and positional accuracy. Subsequently, they are all assembled mechanically. No fine-tuning is required during the assembly process; they can be assembled directly. This greatly reduces the assembly and operation difficulty for workers, significantly saves the construction period, and also improves the reliability of the entire fastener set. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0024] Figure 2 This is a top view of the overall structure of this utility model;

[0025] Figure 3 This is a side view of the overall structure of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the bidirectional fine-tuning combination unit in this utility model;

[0027] Figure 5 This is a cross-sectional structural diagram of the bidirectional fine-tuning combination unit in this utility model;

[0028] Figure 6 This is a top view of the bidirectional fine-tuning assembly unit in this utility model.

[0029] Figure 7 This is a top view of the concrete foundation structure in this utility model;

[0030] Figure 8 This is a schematic cross-sectional view of the concrete foundation in this utility model.

[0031] Figure 9 This is a schematic diagram of the vertical adjustment component in this utility model;

[0032] Figure Descriptions: 1. Two-way fine-tuning assembly unit; 2. Cover plate; 3. Concrete foundation; 4. Track; 11. Connecting cavity; 12. Support block; 13. Vertical adjustment assembly; 14. Horizontal adjustment assembly; 15. Sliding guide unit; 16. Connecting through hole; 131. Horizontal threaded through hole; 132. Horizontal precision adjustment bolt; 133. Horizontal precision adjustment nut; 141. Base; 142. Locking nut; 143. Lifting adjustment nut; 144. Bearing boss; 145. Lifting screw; 111. Universal ball bearing roller; 121. Mating hole; 151. Guide support cylinder; 152. Limit nut; 153. Brass graphite guide sleeve; 21. First through hole; 22. Second through hole; 23. Top screw; 31. Concrete support platform; 32. Reserved wire hole; 33. Embedded equipment mounting steel plate. Detailed Implementation

[0033] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0034] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] 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. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0037] Example 1

[0038] like Figures 1-9 As shown, this utility model provides a technical solution:

[0039] High-precision fasteners for adjusting the lateral and vertical positions of the slide rail include, but are not limited to, a bidirectional fine-tuning assembly unit 1 and a cover plate 2. The bidirectional fine-tuning assembly unit 1 is provided with a connecting cavity 11 for accommodating the track 4 and a support block 12 that cooperates with and is fixed to the cover plate 2. The track 4 is disposed in the connecting cavity 11 and fixed by the cover plate 2. The bidirectional fine-tuning assembly unit 1 is provided with a vertical adjustment component 13 and a lateral adjustment component 14. The vertical adjustment component 13 is disposed at the bottom of the bidirectional fine-tuning assembly unit 1 and connected to the concrete foundation 3. The lateral adjustment component 14 is embedded in the lateral position of the bidirectional fine-tuning assembly unit 1, and the end of the lateral adjustment component 14 can extend and retract within the connecting cavity 11.

[0040] Based on the above structure, the track 4 is initially inserted into the predetermined position through the connecting cavity 11, and then the cover plate 2 is fixed to the support block 12 to fix the track 4. When it is necessary to adjust the height of the track 4, the vertical adjustment component 13 is used to change the height of the entire bidirectional fine adjustment assembly unit 1, which in turn changes the height of the track 4 fixed on it. When it is necessary to adjust the horizontal position of the track 4, the horizontal adjustment component is used to change the horizontal position of the track 4 fixed in the connecting cavity 11, thereby realizing the horizontal position adjustment of the track 4. This solution can efficiently adjust the track 4 in both the vertical and horizontal directions.

[0041] As an example, the bidirectional fine-tuning assembly unit 1 is also provided with a sliding guide unit 15 and a connecting through hole 16 that cooperates with the sliding guide unit 15. The sliding guide unit 15 is disposed in the connecting through hole 16 and is symmetrically arranged along the center position of the connecting cavity 11.

[0042] The sliding guide unit 15 includes a guide support cylinder 151, a limiting nut 152, and a brass graphite guide sleeve 153. The bottom of the guide support cylinder 151 is fixedly connected to the concrete foundation 3, and the specific connection method can be bolt connection or welding. The brass graphite guide sleeve 153 is embedded in the connecting through hole 16 and is slidably arranged with the guide support cylinder 151. The guide support cylinder 151 passes through the brass graphite guide sleeve 153 and protrudes from the bidirectional fine adjustment assembly. The top position of the guide support cylinder 151 is provided with an external thread that mates with the limiting nut 152. The limiting nut 152 is sleeved on the guide support cylinder 151.

[0043] Based on the above structure, after the height of the railway rail is adjusted, during the vertical precision adjustment of the railway rail, the brass graphite guide sleeve 153 mainly plays a guiding role to prevent the railway rail from tilting laterally, thereby ensuring the accuracy of its adjustment. After the bidirectional fine adjustment unit 1 is lifted by the vertical adjustment component 13, the limit nut 152 locks the upper position of the bidirectional fine adjustment unit 1. Through the cooperation of the vertical adjustment component 13, the brass graphite guide sleeve 153 and the limit nut 152, the precise vertical adjustment of the bidirectional fine adjustment unit 1 is achieved.

[0044] As an example, the connecting cavity 11 is a rectangular structure, and the support blocks 12 are located on the left and right sides of the connecting cavity 11. Universal ball bearing rollers 111 are also provided in the connecting cavity 11; multiple universal ball bearing rollers 111 are provided between adjacent support blocks 12.

[0045] Based on the above structure, the bottom surface of the dual-degree-of-freedom sliding unit of this solution is equipped with universal ball bearing rollers 111, thereby changing the friction mode of railway rails during lateral fine-tuning to rolling friction, greatly reducing friction and thus saving manpower.

[0046] As an example, the omnidirectional ball bearing rollers 111 are arranged on the center line of the adjacent support blocks 12 along the length direction, and the omnidirectional ball bearing rollers 111 are evenly spaced in groups of 3 on the center line.

[0047] Based on the above structure, by specially setting the position of the universal ball bearing roller 111, the track 4 can be better supported in the length direction, so that the track 4 can remain flat when sliding.

[0048] As an example, the support block 12 is provided with multiple mating holes 121, which are arranged along the length of the support block 12. The cover plate 2 is fixed to the mating holes 121 by bolts. By providing multiple mating holes 121, the cover plate 2 can be more firmly fixed to the support block 12.

[0049] As an example, a first through hole 21 is provided on one side wall of the cover plate 2 to cooperate with the mating hole 121, and a second through hole 22 is provided on the other side wall to cooperate with the set screw 23. There are multiple first through holes 21 and second through holes 22. When the cover plate 2 is fixed to the support block 12 by bolts, the second through hole 22 is located at the bottom of the rail 4.

[0050] Based on the above structure, when the cover plate 2 is bolted to the support block 12, the pin is screwed into the second through hole 22 to achieve contact fixation of the rail 4, so that the cover plate 2 is firmly pressed against the surface of the railway rail, and finally the lateral freedom of the railway rail is restricted.

[0051] As an example, the bidirectional fine-tuning assembly unit 1 is provided with a transverse threaded through hole 131, a transverse precision adjusting bolt 132, and a transverse precision adjusting nut 133; the transverse threaded through holes 131 are symmetrically arranged on the bidirectional fine-tuning assembly unit 1 along the center of the support block 12, and there are a total of 4 sets; the transverse precision adjusting bolt 132 passes through the transverse threaded through hole 131 and extends into the connecting cavity 11, and the transverse precision adjusting nut 133 is sleeved on the end position of the transverse precision adjusting bolt 132.

[0052] Based on the above structure, when it is necessary to adjust the horizontal position of the track 4, the horizontal precision adjusting bolts 132 on both sides are screwed in or out, so that the horizontal precision adjusting bolts 132 abut against the track 4. By changing the position of the horizontal precision adjusting bolts 132 in the horizontal threaded through holes 131, the horizontal position of the track 4 can be precisely adjusted. The horizontal precision adjusting nut 133 is provided at the end of the horizontal precision adjusting bolt 132, which can increase the contact surface with the end of the track 4 and avoid damage to the surface of the track 4.

[0053] As an example, the vertical adjustment component 13 is a bolt jack, which includes a base 141, a locking nut 142, a lifting adjustment nut 143, a pressure-bearing boss 144, and a lifting screw 145. The base 141 is provided with a threaded hole that mates with the lifting screw 145. The lifting screw 145 is fitted into the threaded hole, the pressure-bearing boss 144 is located at the top of the lifting screw 145, the lifting adjustment nut 143 is fixedly mounted on the lifting screw 145, and the locking nut 142 is rotatably mounted on the lifting screw 145. The base 141 is connected to the concrete foundation 3.

[0054] Based on the above structure, when it is necessary to adjust the height position of the bidirectional fine adjustment combination unit 1, the lifting screw 145 is rotated in the threaded hole on the base 141 by rotating the lifting adjustment nut 143, thereby adjusting the height. When it is rotated to the predetermined position, the height position of the lifting screw 145 is locked by rotating the locking nut to contact the base 141. Specifically, when it is necessary to adjust the vertical accuracy of the railway rail, the locking nut 142 of the screw jack needs to be loosened, so that the pressure-bearing lifting screw 145 can move up and down. Then, by rotating the lifting adjustment nut 143, the pressure-bearing boss 144 can move up and down, thereby realizing the up and down movement of the railway rail.

[0055] As an example, the concrete foundation 3 may include a concrete support platform 31, a reserved wire hole 32, and a pre-embedded equipment mounting steel plate 33; the pre-embedded equipment mounting steel plate 33 is arranged in multiple intervals on the concrete support platform 31, and the reserved wire hole 32 is arranged between adjacent pre-embedded equipment mounting steel plates 33.

[0056] Based on the above structure, the function of the concrete support foundation is to provide support for the entire set of fasteners, railway rails, navigation systems, etc. The concrete support platform 31 is formed by integral casting. Before the integral casting of the concrete support platform 31, wiring holes 32 need to be reserved during the reinforcement binding to facilitate subsequent electrical and control wiring. Simultaneously with the completion of the concrete support platform 31 casting, equipment installation steel plates 33 need to be pre-embedded to facilitate the installation and welding of various mechanical equipment. The spiral jack is a rack-type product; specific models can be directly purchased according to actual working conditions. Practical use has verified that this product has low cost and high reliability.

[0057] The installation method of this scheme is as follows: First, install the spiral jack. The spiral jack can be directly welded to the pre-embedded equipment mounting steel plate 33, or it can be connected by bolts. Then, install the sliding guide unit 15. The sliding guide unit 15 is connected to the flange hole of the pre-embedded equipment mounting steel plate 33 in the concrete foundation 3 by bolts. Then, after cooling the brass graphite guide sleeve 153 in liquid nitrogen, install it onto the two-degree-of-freedom sliding unit. Then, install the whole unit onto the sliding guide unit 15. Finally, install other auxiliary parts. All installation methods are bolt connections.

[0058] In this invention, the spiral jack and the universal ball bearing roller 111 used can be purchased directly from the market; the required processed parts are all made of ordinary carbon steel, which has excellent characteristics such as low cost, easy processing and transportation, and good toughness. The concrete used in the concrete foundation 3 is also a common product on the market, which has excellent characteristics such as low cost, sufficient supply and easy availability.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 high-precision fastener for adjusting the lateral and vertical position of a slide rail, characterized in that, The utility model provides a two -way fine adjustment combination unit and cover plate, the two -way fine adjustment combination unit is provided with the connecting cavity for accommodating track and the support block fixedly cooperating with cover plate, the track is arranged in the connecting cavity and is fixed through the cover plate, the two -way fine adjustment combination unit is provided with vertical adjusting assembly and horizontal adjusting assembly, vertical adjusting assembly is arranged in the bottom of two -way fine adjustment combination unit and is connected with concrete foundation, horizontal adjusting assembly is embeddedly arranged in the lateral position of two -way fine adjustment combination unit, and the end of horizontal adjusting assembly can be telescopic in the connecting cavity.

2. The high precision fastener for adjusting the lateral and vertical position of a slide rail according to claim 1, wherein: The two -way fine adjustment combination unit is also provided with a sliding guide unit and a connecting through hole cooperating with the sliding guide unit. The sliding guide unit is arranged in the connecting through hole and symmetrically arranged along the central position of the connecting cavity.

3. The high precision fastener for adjusting the lateral and vertical position of a slide rail according to claim 2, wherein: The sliding guide unit includes a guide support cylinder, a limiting nut, and a brass graphite guide sleeve. The bottom of the guide support cylinder is fixedly connected with the concrete foundation. The brass graphite guide sleeve is embedded in the connecting through hole and is slidingly arranged with the guide support cylinder. The guide support cylinder passes through the brass graphite guide sleeve and protrudes from the two-way fine adjustment combination unit. The top of the guide support cylinder is provided with external threads cooperating with the limiting nut. The limiting nut is sleeved on the guide support cylinder.

4. The high precision fastener for adjusting the lateral and vertical position of a slide rail according to claim 3, wherein: The connecting cavity is in a rectangular structure. The support blocks are arranged on the left and right sides of the connecting cavity. The connecting cavity is also provided with universal ball steel ball rollers. The universal ball steel ball rollers are arranged in multiple numbers between adjacent support blocks.

5. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 4, wherein: The universal ball steel ball rollers are arranged on the center line of the length direction of the adjacent support blocks. The universal ball steel ball rollers are evenly spaced in three on the center line.

6. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 5, wherein: The support blocks are provided with multiple cooperating holes. The cooperating holes are arranged in multiple numbers along the length direction of the support blocks. The cover plate is fixed on the cooperating holes by bolts.

7. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 6, wherein: The cover plate is provided with first through holes cooperating with the cooperating holes on one side wall and second through holes cooperating with the jackscrews on the other side wall. The first through holes and the second through holes are arranged in multiple numbers. When the cover plate is fixed on the support blocks by bolts, the second through holes are at the rail bottom position of the track.

8. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 7, characterized in that: The two-way fine adjustment combination unit is provided with horizontal threaded through holes, horizontal precision adjustment bolts, and horizontal precision adjustment nuts. The horizontal threaded through holes are symmetrically arranged on the two-way fine adjustment combination unit along the center of the support blocks. There are four groups in total. The horizontal precision adjustment bolts pass through the horizontal threaded through holes and extend into the connecting cavity. The horizontal precision adjustment nuts are sleeved on the end positions of the horizontal precision adjustment bolts.

9. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 8, characterized in that: The vertical adjusting assembly is a bolt jack. The bolt jack includes a base, a locking nut, a lifting adjustment nut, a pressure bearing boss, and a lifting screw. The base is provided with a threaded hole cooperating with the lifting screw. The lifting screw is sleeved in the threaded hole. The pressure bearing boss is arranged at the top position of the lifting screw. The lifting adjustment nut is fixedly arranged on the lifting screw. The locking nut is rotatably arranged on the lifting screw. The base is connected with the concrete foundation.

10. The high precision clamp for adjusting the lateral and vertical position of a slide rail according to claim 9, characterized in that: The concrete foundation comprises a concrete support platform, a reserved threading hole and embedded equipment mounting steel plates; the embedded equipment mounting steel plates are arranged in multiple numbers at intervals on the concrete support platform, and the reserved threading hole is arranged between adjacent embedded equipment mounting steel plates.

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