Main beam positioning tool

Abstract

The invention provides a main beam positioning tool which comprises a base, a positioning reference support arranged on the base and a plurality of self-adaptive elastic clamps, and the positioning reference support and the self-adaptive elastic clamps are distributed in the length direction of the base. Each self-adaptive elastic clamp comprises a fixed seat, a linear slide rail, a supporting piece and an elastic guide piece, the fixed seat is mounted on the base, the fixed seat and the supporting piece are connected through the linear slide rail, and the supporting piece is connected with one of the fixed seat and the base through the elastic guide piece; wherein the elastic direction of the elastic guide piece is consistent with the running direction of the linear sliding rail. According to the main beam positioning tool, the multiple self-adaptive elastic clamps are arranged in the length direction of the base, and in the machining and positioning process, the supporting pieces of the self-adaptive elastic clamps can make contact with the bottom of the to-be-machined main beam in a self-adaptive mode under cooperation of the elastic guiding pieces and the linear sliding rails; the to-be-machined main beam is supported under the condition that the to-be-machined main beam does not deform, and high-precision machining is achieved.

Description

Technical Field

[0001] The present application belongs to the field of heliostats, and specifically, relates to a main beam positioning tool. Background Art

[0002] With the rapid development of science and technology, the demand for solar thermal power generation has increased significantly, and power generation efficiency has become a problem that needs to be solved at present. To increase power generation efficiency, it is necessary to increase the focusing performance of the heliostat, and the focusing performance of the heliostat depends on the processing and assembly accuracy of the heliostat bracket. The sub-beam support on the main beam of the heliostat bracket carries the sub-beam, and the sub-beam carries the reflector. Therefore, the installation accuracy of the sub-beam determines the focusing efficiency of the reflector. The installation accuracy of the sub-beam depends on the accuracy of the connecting hole on the sub-beam support. The connecting hole on the sub-beam support and the hole on the sub-beam are connected through the pin shaft gap. Therefore, the installation accuracy of the sub-beam depends on the accuracy of the connecting hole.

[0003] As the main bearing structure of the heliostat, it determines the rigidity and accuracy of the entire mirror frame, and the accuracy depends on the connection holes of the secondary beam supports on the main beam. At the same time, the installation accuracy of the secondary beam depends on the accuracy of the connection holes. At the same time, in related technologies, most positioning methods cannot solve the deformation error caused by the positioning of the main beam, so that the main beam is processed under deformation, which leads to low accuracy of the processed connection holes. Summary of the invention

[0004] This application aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the main technical solutions adopted in this application include:

[0005] The present application provides a main beam positioning tool, comprising a base, a positioning reference support and a plurality of adaptive elastic clamps arranged on the base, wherein the positioning reference support and the plurality of adaptive elastic clamps are distributed along the length direction of the base; each of the adaptive elastic clamps comprises a fixed seat, a linear slide rail, a support member and an elastic guide member, wherein the fixed seat is installed on the base, the fixed seat and the support member are connected through a linear slide rail, and the support member is connected to one of the fixed seat and the base through the elastic guide member;

[0006] Wherein, the elastic direction of the elastic guide member is consistent with the running direction of the linear slide rail.

[0007] The main beam positioning tooling provided in the present application sets a number of adaptive elastic clamps along the length direction of the base. During the processing and positioning process, the support parts of the adaptive elastic clamps can adaptively contact the bottom of the main beam to be processed with the cooperation of the elastic guide parts and the linear slide rails, thereby supporting the main beam to be processed without deforming it, thereby achieving high-precision processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 A structural diagram of the main beam positioning tooling provided in an embodiment of the present application;

[0010] Figure 2 for Figure 1 Enlarged view of the middle circle A part;

[0011] Figure 3 A side view of the main beam positioning tool provided in an embodiment of the present application;

[0012] Figure 4 for Figure 1 Enlarged view of the middle circle B part;

[0013] Figure 5 This is a structural diagram of the main beam to be processed in an embodiment of the present application being placed on the main beam positioning tooling. DETAILED DESCRIPTION

[0014] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0015] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0016] With the rapid development of science and technology, the demand for solar thermal power generation has increased significantly, and power generation efficiency has become a problem that needs to be solved now. To increase power generation efficiency, it is necessary to increase the focusing performance of the heliostat, and the focusing performance of the heliostat depends on the processing and assembly accuracy of the heliostat bracket. The main beam, as the main bearing structure of the heliostat, determines the rigidity and accuracy of the entire mirror frame, and the accuracy depends on the connection hole of the sub-beam support on the main beam. The connection hole and the hole on the sub-beam are connected with a pin gap, and the sub-beam carries the reflector. The installation accuracy of the sub-beam depends on the accuracy of the connection hole, and at the same time determines the focusing efficiency of the reflector.

[0017] The accuracy of processing the connecting holes depends not only on the accuracy of the workpiece itself, but also on the clamping of the positioning fixture to ensure its processing accuracy requirements. In the related technology, most positioning methods cannot solve the deformation error caused by the positioning of the main beam. Since the main body of the main beam is a thin-walled steel pipe, the length can reach more than 5m, and most of the current main beam drilling and positioning fixtures use positioning V-blocks and bolt-tightening pressure blocks. The main beam is supported at the bottom by positioning V-blocks, and then the pressure blocks are tightened from top to bottom with bolts to fix it. When the main beam is fixed, the main beam will bend and deform due to the tightening pressure on the cross section of the main beam. In this case, the connecting holes are drilled on the auxiliary beam supports on the main beam. The holes measured and processed without disassembling the positioning fixture meet the processing requirements. However, due to the deformation caused by the clamping, the deformation force will be released after the main beam is disassembled, resulting in uneven processing errors of the connecting holes.

[0018] In order to solve the problem in the related art that the connection holes on the auxiliary beam support are processed in the upper position when the main beam is deformed, which leads to the low precision of the processed connection holes, please refer to Figures 1 to 5 The present application proposes a main beam positioning tool, comprising a base 1, a positioning reference support 2 and a plurality of adaptive elastic clamps 3 arranged on the base 1, wherein the positioning reference support 2 and the plurality of adaptive elastic clamps 3 are distributed along the length direction of the base 1 (i.e., the XX direction shown in the figure); each of the adaptive elastic clamps 3 comprises a fixed seat 31, a linear slide rail 32, a support member 33 and an elastic guide member 34, wherein the fixed seat 31 is installed on the base 1, the fixed seat 31 and the support member 33 are connected by a linear slide rail 32, and the support member 33 is connected to one of the fixed seat 31 and the base 1 by the elastic guide member 34; wherein the elastic direction of the elastic guide member 34 is consistent with the running direction of the linear slide rail 32.

[0019] In this embodiment, when the main beam 10 to be processed is placed on the main beam positioning tooling, the positioning reference support 2 limits the degrees of freedom of the main beam 10 to be processed, specifically, limits the six degrees of freedom of the main beam 10 to be processed. In each of the elastic clamps 3, the elastic guide member 34 can adaptively reversely support the support member 33 according to the pressure of the main beam 10 to be processed, and the linear slide rail 32 can stably support the moving part - the support member 33, and ensure that the support member 33 moves linearly along a predetermined trajectory. By setting a plurality of adaptive elastic clamps 3 along the length direction (XX direction) of the base 1, the main beam is in a horizontal posture in the actual application scenario, and the main beam is also in a horizontal posture on the base 1, and is processed in the same posture. During the main beam processing and positioning process, the support member 33 of the adaptive elastic clamp 3 can adaptively contact the bottom of the main beam 10 to be processed with the cooperation of the elastic guide member 34 and the linear slide rail 32, so as to support the main beam 10 to be processed without deformation, thereby realizing high-precision processing without deformation, and the processing error of the connection hole after the main beam is disassembled and assembled is small, and even the processing error can be achieved. Compared with the traditional positioning V-block and bolt-tightening pressure block processing and positioning method, the accuracy of the connection hole of the sub-beam support on the main beam is improved, thereby improving the installation accuracy of the sub-beam and improving the focusing efficiency of the heliostat reflector.

[0020] In this embodiment, along the length direction of the base 1, a plurality of adaptive elastic clamps 3 are distributed on both sides of the positioning reference support 2. In other words, along the length direction of the base 1, that is, Figure 1 In the XX direction shown in FIG, adaptive elastic clamps 3 are distributed on both sides of the positioning reference support 2. The number of the adaptive elastic clamps 3 is at least 2 groups, and the number can be designed according to actual needs.

[0021] In some embodiments, a plurality of adaptive elastic clamps 3 are evenly distributed on both sides of the positioning reference support 2, so as to improve the positioning support during the main beam processing process by evenly distributing the plurality of adaptive elastic clamps 3 .

[0022] Please refer again Figure 2 , and combined with Figure 3 In this embodiment, in each of the elastic clamps 3, the support member 33 includes a support plate 331 and a clamping jaw 332. An opening 331a is provided on the top of the support plate 331. The clamping jaws 332 are symmetrically distributed along the center line (l) of the opening 331a. The opening angle α formed by the clamping jaws 332 is consistent with the opening direction of the opening 331a, that is, the clamping jaws 332 form a V-shaped distribution. The center line (l) of the opening 331a is a vertical center line. In this embodiment, the clamping jaws 332 are arranged in pairs, and the clamping jaws 332 of the same pair are along the width direction of the base 1, that is, Figure 1The YY direction shown in the figure is symmetrically arranged about the center line (l) of the opening 331a. In this embodiment, the V-shaped distribution of the opening angle (α) is formed by the clamping jaws 332, which can meet the positioning support of main beams of various sizes and specifications, and can be clamped in the center according to the size of the main beam. In a specific embodiment, the clamping jaws 332 are set as a pair, that is, two. Of course, more than two pairs can also be set. In this embodiment, the clamping jaws of the adaptive elastic clamp 3 adopt a double-link mechanism, and of course it can also be a four-link mechanism, which greatly increases the firmness of the clamping.

[0023] Please refer again Figure 2 In this embodiment, in each of the elastic clamps 3, the linear slide rails 32 are provided in at least two numbers and are distributed along the width direction (YY direction) of the base 1; the linear slide rails 32 include a guide rail 321 and a slider 322, the slider 322 can move along the guide rail 321, one of the guide rail 321 and the slider 322 is fixedly connected to the support plate 331, and the other is fixedly connected to the fixed seat 31. In a specific embodiment, the guide rail 321 is fixedly connected to the fixed seat 31, the slider 322 is fixedly connected to the support plate 331, and the slider 322 can run linearly along the guide rail 321 in the height direction of the base 1 (i.e., the ZZ direction shown in the figure). In a specific embodiment, the linear slide rails 32 are provided in two numbers and are symmetrically distributed about the center line (l) of the opening 331a, so as to ensure the uniformity of the load-bearing and improve the service life of the linear slide rails 32.

[0024] Please refer again Figure 2 In this embodiment, in each of the elastic clamps 3, the elastic guide members 34 are provided in at least two numbers and are distributed along the width direction of the base 1; the elastic guide member 34 includes a guide column 341 and a spring 342, the spring 342 is sleeved on the guide column 341, the fixed seat 31 includes a bottom plate 311, the spring 342 is located between the bottom plate 311 and the support plate 331, and one end of the spring 342 is in contact with the support plate 331, and the other end is in contact with the bottom plate 311. Abutment; one of the support plate 331 and the bottom plate 311 is fixedly connected to one end of the guide column 341, and the other of the support plate 331 and the bottom plate 311 is provided with a guide hole 31a, and the guide column 341 is slidably matched with the guide hole 31a; wherein the centerline direction of the guide hole 31a is consistent with the running direction of the linear slide 32, and the centerline direction of the guide hole 31a and the running direction of the linear slide 32 are both consistent with the height direction (ZZ direction) of the base 1. In some embodiments, the elastic guide members 34 are provided in two numbers, which are symmetrically distributed about the centerline (l) of the opening 331a.

[0025] In a specific embodiment, the bottom plate 311 is provided with a guide hole 31a, one end of the guide post 341 is fixedly connected to the support plate 331, and the other end of the guide post 341 can pass through the bottom plate 311 through the guide hole 31a. During the positioning process, the guide post 341 can move in the ZZ direction relative to the bottom plate 311 until a balanced state is reached.

[0026] Please refer again Figure 2 , the adaptive elastic clamp 3 also includes a connecting rod 35 and a positioning column 36. The other end of the guide column 341 of the same adaptive elastic clamp 3 is connected to the connecting rod 35, and the positioning column 36 is fixedly connected to the bottom plate 311. The positioning column 36 passes through the connecting rod 35 and slides with the connecting rod 35. Among them, a limiting head 361 is provided at one end of the positioning column 36 away from the connecting rod 35 to prevent the connecting rod 35 from slipping off the positioning column 36. In this embodiment, a plurality of guide columns 341 are connected by a connecting rod 35 to ensure that the guide columns 341 run synchronously and prevent sliding jamming to ensure smooth operation. In addition, the positioning column 36 can further improve the accuracy of the guide. In this embodiment, the number of positioning columns 36 is not specifically limited, and can be one or more.

[0027] Please refer again Figures 2 to 3 The main beam positioning tooling also includes a mobile press 4, which cooperates with the adaptive elastic clamp 3 to achieve self-balancing fixation of the main beam 10 to be processed without deformation, and at least one of the adaptive elastic clamps 3 is installed with the mobile press 4. In this embodiment, each adaptive elastic clamp 3 is installed with the mobile press 4 to provide a stable supporting and fixing effect for the main beam 10 to be processed.

[0028] Specifically, the movable press 4 includes a cylinder 41 and a pressing plate 42. The cylinder 41 is installed on the side of the support plate 331 along the width direction (YY direction) of the base 1. The pressing plate 42 is connected and fixed to the cylinder 41. The cylinder 41 can drive the pressing plate 42 to rise and fall along the height direction (ZZ direction) of the base 1. The pressing plate 42 is located above the opening 331a. In this embodiment, the shape of the pressing plate 42 is not specifically limited, and can be a straight plate or a holding plate.

[0029] More specifically, the mobile press 4 also includes a force sensor (not shown in the figure), and the force sensor is arranged on the bottom surface of the pressing plate 42. The force sensor and the cylinder 41 are both electrically connected to the controller. In practical applications, after the main beam 10 to be processed is placed on the positioning reference support 2 and the adaptive elastic clamp 3, the cylinder 41 is controlled by the controller to drive the pressing plate 42 downward, and the force sensor sends a feedback signal to the controller, and the controller processes and analyzes the feedback signal. When the force reaches the set value, the controller sends an execution signal to the cylinder 41 to stop running, so as to avoid the mobile press 4 from applying too much or too little pressure to the main beam 10 to be processed, and ensure that the main beam 10 to be processed is self-balanced and fixed without deformation, which solves the problem that in the traditional positioning method, if the pressure block applies a large force, the main beam will be deformed, and if the force is small, the fixation is not firm, resulting in the inability to ensure the original posture of the main beam.

[0030] Please refer again Figure 3 In the above embodiment, the positioning reference support 2 is used to limit the six degrees of freedom of the main beam 10 to be processed, so as to prevent the main beam 10 from moving and rotating during the processing, thereby improving the processing accuracy. Specifically, the positioning reference support 2 has a first positioning hole 2a and a second positioning hole 2b, and the first positioning hole 2a and the second positioning hole 2b are used to provide reference positioning for the main beam 10 to be processed; the first positioning hole 2a is used to provide reference positioning for the shaft support 10a of the main beam 10 to be processed; and the second positioning hole 2b is used to provide reference positioning for the push rod support 10b of the main beam 10 to be processed. During the positioning process, the connecting hole on the shaft support 10a of the main beam 10 to be processed corresponds to the first positioning hole 2a and is connected through a connecting member, and the connecting hole on the push rod support 10b of the main beam 10 to be processed corresponds to the second positioning hole 2b and is connected through a connecting member, so as to achieve the effect of preventing the main beam 10 to be processed from rotating. The connecting member can be one or more of a fastener, a connecting shaft and a connecting pin. In this embodiment, the first positioning hole 2a includes a first mounting hole 2a1 corresponding to the shaft mounting hole on the shaft support 10a and a second mounting hole 2a2 corresponding to the connecting hole on the shaft support 10a, and the number of the second mounting holes 2a2 is multiple. The second positioning hole 2b includes a third mounting hole 2b1 corresponding to the pin hole on the push rod support 10b. In this way, the posture of the main beam 10 to be processed is kept consistent when it is installed and assembled after being processed.

[0031] More specifically, the positioning reference support 2 is L-shaped, and includes a base 21 and two vertical plates 22. The two vertical plates 22 are distributed along the length direction (XX direction) of the base 1. The two vertical plates 22 are both provided with the first positioning holes 2a. The two vertical plates 22 are also used to limit the main beam 10 to be processed along the length direction (XX direction) of the base 1 to limit the movement of the main beam 10 to be processed during the processing. In addition, the positioning reference support 2 also includes a support plate 23. The support plates 23 are provided on the relative outer sides of the two vertical plates 22. The support plates 23 are used to provide support for the rotating shaft support 10a. The support plates 23 are tilted to support the rotating shaft support 10a and also have a limiting effect.

[0032] In this embodiment, the positioning reference support 2 includes a second positioning hole positioning member 24, and the second positioning hole positioning member 24 is detachably connected to the base 21. The support plate 23 and the corresponding vertical plate 22 are also detachably connected. The support plate 23 and the second positioning hole positioning member 24 can be adaptively installed according to the different sizes of the main beams 10 to be processed to meet the processing requirements of the main beams 10 to be processed with different sizes, which solves the problem that the traditional positioning method requires the use of positioning mechanisms of different sizes for different main beam pipes, resulting in high costs. Of course, in this nursing, the vertical plate 22 can also be detachably connected to the base 21 to adapt to the processing of different main beams 10 to be processed.

[0033] Please refer again Figure 4 The main beam 10 to be processed includes a main beam tube body 100, a rotating shaft support 10a and a push rod support 10b. The rotating shaft support 10a and the push rod support 10b are both connected and fixed to the main beam tube body 100. The rotating shaft support 10a and the push rod support 10b are arranged in the middle part of the main beam tube body 100 along the length direction. The rotating shaft support 10a includes two supporting parts. In the positioning state, the two supporting parts are located on the outer side of the corresponding vertical plate 22 and abut against the corresponding support plate 23. In addition, the main beam 10 to be processed also includes a plurality of secondary beam supports 10c, which are evenly distributed on both sides of the rotating shaft support 10a. In this embodiment, the rotating shaft support 10a, the push rod support 10b and the secondary beam support 10c are all connected to the main beam tube body 100 by welding, so the main beam is a relatively large main beam welded part. In a specific embodiment, the number of the secondary beam supports 10c is 8.

[0034] Specifically, each secondary beam support 10c needs to be machined with a connection hole 10c1 on the main beam positioning tooling. The centerline direction of the connection hole 10c1 is consistent with the length direction of the main beam tube body 100. The connection hole 10c1 is used to connect the secondary beam assembly. In order to improve the focusing performance of the heliostat, the connection holes on the secondary beam support 10c need to be raised from the middle of the main beam tube body 100 along the length to the outside. Since the main beam tube body 100 is long, its own straightness consistency is poor. If the traditional positioning method is used, the V-blocks at both ends will contact, and other V-blocks may not contact due to the bending of the main beam tube itself, resulting in insufficient positioning rigidity of the main beam weldment, resulting in poor punching accuracy of the secondary beam support, and the traditional positioning method will cause the main beam tube body 100 to deform or become loose due to the force applied by the pressure block, which will lead to large processing errors of the connection holes of the secondary beam support 10c and fail to meet actual requirements, and the rework cost is high. In this embodiment, the positioning reference support 2 provides the main positioning basis for the main beam 10 to be processed to limit the degree of freedom of the main beam 10 to be processed. The setting point of each adaptive elastic clamp 3 can be adaptively contacted according to the posture of the main beam 10. In addition, the adaptive elastic clamp 3 cooperates with the mobile press 4 to achieve non-deformation clamping of the main beam 10. In this way, the processing accuracy of the connecting hole of the auxiliary beam support 10c can be improved, the processing error can be reduced, and the installation accuracy of the auxiliary beam assembly can be improved, and the focusing performance of the reflector group can be improved. In this embodiment, the base 1 is also provided with a guide plate 1a to facilitate the discharge of metal scraps generated during the punching process along the guide plate 1a.

[0035] Some technical implementations in the above embodiments may be combined or replaced.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The technical principles of the present application are described above in combination with specific implementations, but it should be noted that the above descriptions are only for explaining the principles of the present application and cannot be interpreted in any way as a specific limitation on the protection scope of the present application. Based on the explanation here, technicians in this field can think of other specific implementations or equivalent replacements of the present application without creative work, and they will all fall within the protection scope of the present application.

Claims

1. A main beam positioning tool, characterized in that: It comprises a base, a positioning reference support and a plurality of adaptive elastic clamps arranged on the base, wherein the positioning reference support and the plurality of adaptive elastic clamps are distributed along the length direction of the base; each of the adaptive elastic clamps comprises a fixed seat, a linear slide rail, a support member and an elastic guide member, wherein the fixed seat is installed on the base, the fixed seat and the support member are connected through the linear slide rail, and the support member is connected to one of the fixed seat and the base through the elastic guide member; Wherein, the elastic direction of the elastic guide member is consistent with the running direction of the linear slide rail.

2. The main beam positioning tool according to claim 1, characterized in that: Along the length direction of the base, the plurality of adaptive elastic clamps are distributed on both sides of the positioning reference support.

3. The main beam positioning tool according to claim 1, characterized in that: The support member comprises a support plate and clamping jaws, the top of the support plate is provided with an opening, the clamping jaws are symmetrically distributed along the center line of the opening, and the opening angle formed by the clamping jaws is consistent with the opening direction of the opening.

4. The main beam positioning tool according to claim 3 is characterized in that: In each of the elastic clamps, the linear slide rails are set to at least 2 and distributed along the width direction of the base; the linear slide rail includes a guide rail and a slider, the slider can move along the guide rail, one of the guide rail and the slider is fixedly connected to the support plate, and the other is fixedly connected to the fixed seat.

5. The main beam positioning tool according to claim 3, characterized in that: In each of the elastic clamps, the elastic guide members are provided in at least two numbers and are distributed along the width direction of the base; the elastic guide member comprises a guide column and a spring, the spring is sleeved on the guide column, the fixed seat comprises a bottom plate, the spring is located between the bottom plate and the support plate, and one end of the spring abuts against the support plate, and the other end abuts against the bottom plate; one of the support plate and the bottom plate is fixedly connected to one end of the guide column, and the other of the support plate and the bottom plate is provided with a guide hole, and the guide column is slidably matched with the guide hole; Wherein, the centerline direction of the guide hole is consistent with the running direction of the linear slide rail.

6. The main beam positioning tool according to claim 5, characterized in that: One end of the guide post is fixedly connected to the support plate, and the other end of the guide post can pass through the bottom plate through a guide hole provided on the bottom plate; The adaptive elastic clamp also includes a connecting rod and a positioning column. The other end of the guide column of the same adaptive elastic clamp is connected to the connecting rod. The positioning column is fixedly connected to the base plate. The positioning column passes through the connecting rod and slides with the connecting rod.

7. The main beam positioning tool according to claim 3 is characterized in that: The main beam positioning tool also includes a mobile press, which cooperates with the adaptive elastic clamp to realize self-balancing fixed clamping of the main beam to be processed without deformation, and at least one of the adaptive elastic clamps is equipped with the mobile press; The movable press comprises a cylinder and a pressing plate. The cylinder is installed on the side of the support plate along the width direction of the base. The pressing plate is connected and fixed to the cylinder. The cylinder can drive the pressing plate to rise and fall along the height direction of the base. The pressing plate is located above the opening.

8. The main beam positioning tool according to claim 7, characterized in that: The movable pressing tool further comprises a force sensor, and the force sensor is arranged on the bottom surface of the pressing plate.

9. The main beam positioning tool according to any one of claims 1 to 8, characterized in that: The positioning reference support is used to limit the six degrees of freedom of the main beam to be processed; The positioning reference support has a first positioning hole and a second positioning hole, and the first positioning hole and the second positioning hole are used to provide a reference positioning for the main beam to be processed; the first positioning hole is used to provide a reference positioning for the rotating shaft support of the main beam to be processed; the second positioning hole is used to provide a reference positioning for the push rod support of the main beam to be processed.

10. The main beam positioning tool according to claim 9, characterized in that: The positioning reference support is L-shaped, and includes a base and two vertical plates, the two vertical plates are distributed along the length direction of the base, the two vertical plates are both provided with the first positioning holes, and the two vertical plates are also used to limit the main beam to be processed along the length direction of the base; The positioning reference support also includes a support plate, and the support plates are arranged on the relatively outer sides of the two vertical plates, and the support plates are used to provide support for the rotating shaft support.

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