Clamping and positioning tool and clamping and positioning structure

Abstract

The utility model discloses a clamping and positioning tool and a clamping and positioning structure, and relates to the technical field of wind driven generator blades, the clamping and positioning tool is used for clamping and positioning a first plate and a second plate which are arranged at an interval, the first plate and the second plate are arranged on the same plane, and an interval seam is arranged between the second plate and the first plate. The clamping and positioning tool comprises pressing plates and threaded parts, the number of the pressing plates is two, the two pressing plates are arranged on the two sides of a first plate respectively, each pressing plate is attached to the first plate and a second plate, and each pressing plate is provided with a through hole; the threaded piece penetrates through the interval seam and the through holes in the two sides of the interval seam, so that the pressing plate is tightly attached to the first plate and the second plate; meanwhile, a reference groove is formed in the pressing plate, and the length direction of the reference groove is parallel to the extending direction of the interval seam. According to the scheme, the second plate and the first plate can be kept in the same plane all the time, the joint of the second plate and the first plate cannot deviate after maintenance, and the maintenance quality is easy to control.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blades, and particularly relates to a clamping and positioning tooling and a clamping and positioning structure. Background Art

[0002] When the web of a wind turbine blade is damaged, the damaged part needs to be cut off, and a newly prefabricated web with a slightly smaller size is bonded to the web to be repaired. In this process, positioning blocks are often bonded to both sides of the web to be repaired and the newly added web. However, after the positioning blocks on both sides are bonded and cured, the newly added web cannot be installed. And for the solution of placing the newly added web first after one-sided positioning block is cured and then bonding the other positioning block, accurate clamping and positioning cannot be achieved, and steps are likely to appear at the splicing joint of the web after repair. Therefore, the method of using positioning blocks for positioning cannot guarantee good repair quality.

[0003] In view of this, it is necessary to propose a clamping and positioning tooling and a clamping and positioning structure to solve or at least alleviate the above technical problems. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a clamping and positioning tooling and a clamping and positioning structure, aiming to solve the technical problem that it is difficult to guarantee the repair quality when repairing the shell or web of a wind turbine blade.

[0005] To achieve the above purpose, the utility model proposes a clamping and positioning tooling for clamping and positioning a first plate and a second plate arranged at intervals. The first plate and the second plate are arranged on the same plane, and there is a gap between the second plate and the first plate. The clamping and positioning tooling includes:

[0006] Pressing plates, the number of the pressing plates is two, and the two pressing plates are respectively arranged on both sides of the first plate, and each pressing plate is used for being attached to the first plate and the second plate, and each pressing plate is provided with a through hole;

[0007] Threaded parts, the threaded parts pass through the gap and the through holes on both sides of the gap, so that the pressing plates are tightly attached to the first plate and the second plate;

[0008] A reference groove is formed on the pressing plate, and the length direction of the reference groove is parallel to the extending direction of the gap.

[0009] In an embodiment, at least two through holes are arranged on the pressing plate at intervals, and the positions and numbers of the through holes formed on the two pressing plates are the same.

[0010] In one embodiment, two through holes are provided, the reference groove is arranged between the two through holes, and the connecting line of the two through holes coincides with the length direction of the reference groove.

[0011] In one embodiment, the pressing plate is symmetrically arranged along the length direction of the reference groove.

[0012] In one embodiment, the pressing plate includes a main body and a cushion layer, the cushion layer is arranged on the bottom surface of the main body and is attached to the first plate and the second plate.

[0013] In one embodiment, the main body includes a reinforcing boss, the through hole includes a first straight hole and a second straight hole, the first straight hole is arranged on the reinforcing boss, the second straight hole is arranged on the cushion layer at the bottom of the reinforcing boss, and the first straight hole and the second straight hole are correspondingly communicated.

[0014] In one embodiment, two reinforcing bosses are provided, the two reinforcing bosses are arranged at intervals, and the first straight hole is formed in each of the reinforcing bosses.

[0015] In one embodiment, the main body further includes a connecting portion, the connecting portion is arranged between the two reinforcing bosses, and the connecting portion is provided with a hollow hole;

[0016] The reference groove is arranged on the side of the connecting portion away from the cushion layer.

[0017] In one embodiment, the pressing plate further includes a holding member, and the holding member is installed on the side of the main body away from the cushion layer.

[0018] A clamping and positioning structure, the clamping and positioning structure includes the clamping and positioning tooling described in any one of the above embodiments, the first plate is a damaged web in a fan blade, and the second plate is a prefabricated new web that needs to be bonded to the damaged web.

[0019] In the technical solution provided by the present utility model, the clamping and positioning tooling is used to clamp and position the first plate and the second plate arranged at intervals. The first plate and the second plate are arranged on the same plane, and there is an interval gap between the second plate and the first plate. The clamping and positioning tooling includes a pressing plate and a threaded member. Among them, the number of pressing plates is two, and the two pressing plates are respectively arranged on both sides of the first plate, and each pressing plate is attached to the first plate and the second plate, and each pressing plate is provided with a through hole; the threaded member passes through the interval gap and the through holes on both sides of the interval gap, so that the pressing plate presses tightly against the first plate and the second plate; at the same time, a reference groove is provided on the pressing plate, and the length direction of the reference groove is parallel to the extension direction of the interval gap. Through this setting, only by gradually tightening the threaded member, the pressing plate can provide a pre-pressure to the first plate and the second plate under the action of the threaded member, so that the two pressing plates can play the role of clamping the first plate and the second plate, and by setting the reference groove, the two pressing plates on both sides can be kept at the same angle during installation, so as to avoid the two pressing plates applying torque to the first plate and the second plate, resulting in offset between the first plate and the second plate. Finally, the first plate and the second plate can always be kept on the same plane and are not easy to offset, so that the positioning of the second plate is more accurate and the maintenance quality is easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0021] Figure 1 Schematic structural diagram of an embodiment of the clamping and positioning structure provided by the present utility model;

[0022] Figure 2 is Figure 1 structural diagram of another perspective in;

[0023] Figure 3 Schematic structural diagram of an embodiment of the clamping and positioning tooling provided by the present utility model;

[0024] Figure 4 is Figure 1 structural diagram of the A-A cross-section in.

[0025] Description of the reference numerals in the drawings:

[0026] 1000, clamping and positioning structure; 100, clamping and positioning tooling; 1, first plate; 2, second plate; 3, interval gap; 4, pressing plate; 41, main body; 411, reinforcing boss; 412, connecting part; 413, hollow hole; 42, cushion layer; 43, holding part; 5, threaded member.

[0027] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] As an important part of clean energy, wind power generation has developed rapidly in China and has become the third largest power supply source in China. At present, there is still great potential for wind power development on land and at sea in China, providing a resource basis for the large-scale development of wind power generation and enabling wind power generation to maintain sustainable development.

[0032] The core equipment for wind power generation is a wind turbine, which mainly captures wind energy through blades and converts the wind energy into electrical energy through a generator. Among them, the production cycle of the blades is long, the production process is relatively complex, and the production cost is high. Therefore, it is usually required to have a long service life. However, the web of the blade may be locally damaged during the production, transportation or use. In this case, considering the cost impact, the web of the blade is generally repaired. When repairing the damaged part, the usual construction process is as follows: cut and open a window around the damaged part, and prefabricate a prefabricated new web slightly smaller than the size of the window. First, bond positioning blocks on the web to be repaired to serve as the positioning reference for the prefabricated new web, then place the prefabricated new web between the webs to be repaired, and then pour structural adhesive into the gap between the web to be repaired and the prefabricated new web. After the structural adhesive is cured, the repair construction of the blade is completed.

[0033] However, according to the applicant's investigation and research, when using positioning blocks as the positioning structure, there is often a deviation in the connection between the prefabricated new web and the web to be repaired, which will result in the strength of the connection between the prefabricated new web and the web to be repaired not meeting the design requirements. Specifically, according to the applicant's observation, during actual construction, if positioning blocks are bonded in advance on both sides of the web to be repaired, the prefabricated new web cannot be installed. And using the installation scheme of placing the prefabricated new web after curing the single-sided positioning block and then bonding the other positioning block cannot complete accurate clamping and positioning, and it is easy to have steps at the splicing part of the web after repair. Therefore, the method of using positioning blocks to position the prefabricated new web cannot guarantee good repair quality.

[0034] In view of this, the present utility model proposes a clamping and positioning tooling to solve the above technical problems.

[0035] Please refer to Figure 1 And Figure 2 , in an embodiment of the present utility model, the clamping and positioning tooling 100 is used to clamp and position the first plate 1 and the second plate 2 arranged at intervals. The first plate 1 and the second plate 2 are arranged on the same plane, and there is an interval gap 3 between the second plate 2 and the first plate 1. The clamping and positioning tooling 100 includes a pressing plate 4 and a threaded part 5. Among them, the number of pressing plates 4 is two, and the two pressing plates 4 are respectively arranged on both sides of the first plate 1, and each pressing plate 4 is attached to the first plate 1 and the second plate 2. Each pressing plate 4 is provided with a through hole; the threaded part 5 passes through the interval gap 3 and the through holes on both sides of the interval gap 3 so that the pressing plate 4 is closely attached to the first plate 1 and the second plate 2; a reference groove is provided on the pressing plate 4, and the length direction of the reference groove is parallel to the extending direction of the interval gap 3.

[0036] Specifically, the first plate 1, which is the undamaged part of the web or blade housing, is cut to form an opening window. This opening window needs to be filled with the second plate 2 and structural adhesive. The size of the second plate 2 is slightly smaller than the size of the opening window to facilitate the installation of the second plate 2. Therefore, there is a gap 3 between the second plate 2 and the first plate 1, and this gap 3 needs to be filled with structural adhesive to closely connect the second plate 2 and the first plate 1. Two pressing plates 4 are provided on both sides of the first plate 1. Each pressing plate 4 on each side is pressed against the surfaces of the first plate 1 and the second plate 2 on the same side. That is, the pressing plate 4 includes three parts. One part is pressed against the surface of the first plate 1, another part is pressed against the surface of the second plate 2, and the last part is arranged outside the gap 3. The two pressing plates 4 are connected by a threaded member 5. The threaded member 5 includes a bolt. The screw rod of the bolt passes through the through holes in the two pressing plates 4 and passes through the gap 3 to install the pressing plates 4 on both sides of the first plate 1 and the second plate 2. By tightening the bolt, the screw rod applies a pulling force to the two pressing plates 4, and then the two pressing plates 4 simultaneously apply a pressure to the first plate 1 and the second plate 2, so that the pressing plates 4 are closely attached to the surfaces of the first plate 1 and the second plate 2, enabling the second plate 2 to be in the same plane as the first plate 1. And in this process, the two pressing plates 4 are respectively installed on both sides of the second plate 2 and the first plate 1, and the bolt is tightened, and the pressing plates 4 on both sides can automatically tighten. Even if the maintenance worker is not skilled in operation, the second plate 2 will not be displaced. In addition, to ensure the accuracy of the installation of the pressing plates 4 and avoid different installation angles of the pressing plates 4 on both sides, reference grooves are provided on the pressing plates 4. During installation, it is necessary to ensure that the length direction of the reference groove is parallel to the extension direction of the gap 3. More specifically, the length directions of the reference grooves on both sides are in the same plane as the extension direction of the gap 3. This setting makes the installation of the pressing plates 4 on both sides more accurate and easier to be noticed by the workers.

[0037] In the technical solution provided by the present utility model, the clamping and positioning tooling 100 is used to clamp and position the first plate 1 and the second plate 2 which are arranged at intervals. The first plate 1 and the second plate 2 are arranged on the same plane, and there is a gap 3 between the second plate 2 and the first plate 1. The clamping and positioning tooling 100 includes a pressing plate 4 and a threaded member 5. Among them, the number of pressing plates 4 is two, and the two pressing plates 4 are respectively arranged on both sides of the first plate 1, and each pressing plate 4 is attached to the first plate 1 and the second plate 2. Each pressing plate 4 is provided with a through hole; the threaded member 5 passes through the gap 3 and the through holes on both sides of the gap 3, so that the pressing plate 4 is tightly attached to the first plate 1 and the second plate 2; at the same time, a reference groove is provided on the pressing plate 4, and the length direction of the reference groove is parallel to the extension direction of the gap 3. Through this setting, only by gradually tightening the threaded member 5, the pressing plate 4 can gradually provide a pre-pressure to the first plate 1 and the second plate 2 under the action of the threaded member 5, so that the two pressing plates 4 can play the role of clamping the first plate 1 and the second plate 2, and by setting the reference groove, the two pressing plates 4 on both sides can be kept at the same angle during installation, thereby avoiding the two pressing plates 4 applying torque to the first plate 1 and the second plate 2 resulting in offset between the first plate 1 and the second plate 2. Finally, the first plate 1 and the second plate 2 can always be kept on the same plane and are not prone to offset, so that the positioning of the second plate 2 is more accurate and the maintenance quality is easy to control.

[0038] Further, in an embodiment of the present utility model, at least two through holes are arranged at intervals on the pressing plate 4, and the positions and numbers of the through holes arranged on the two pressing plates 4 are the same. Through this setting, on the one hand, the pressing plates 4 on one side of the first plate 1 can all be connected to the pressing plates 4 on the other side through more than two through holes, increasing the clamping force of the two pressing plates 4 on the first plate 1 and the second plate 2 and improving the stability during the installation of the second plate 2. On the other hand, this setting facilitates the accurate positioning of the two pressing plates 4 during installation and improves the installation efficiency of the pressing plates 4.

[0039] Still further, in an embodiment of the present utility model, two through holes are provided, and the reference groove is arranged between the two through holes. The connecting line of the two through holes coincides with the length direction of the reference groove. Please refer to Figure 3 , the pressing plates 4 on both sides of the second plate 2 have the same structure and are symmetrically arranged along the central plane of the second plate 2. Two through holes are provided on the pressing plate 4, namely a first through hole and a second through hole. The first through holes on the two pressing plates 4 are correspondingly arranged. Similarly, the second through holes are also correspondingly arranged. The number of threaded members 5 is the same as the number of through holes on one side of the pressing plate 4. The reference groove is arranged between the first through hole and the second through hole. The connecting line of the first through hole and the second through hole coincides with the length direction of the reference groove, enabling the pressing plates 4 on both sides to be quickly positioned to the gap during installation, thereby improving the installation efficiency. At the same time, it avoids the influence on the judgment of workers and the occurrence of installation errors when the length direction of the reference groove is set in other directions.

[0040] Please refer to Figure 1 In Figure 2 , in an embodiment of the present utility model, the pressing plates 4 are symmetrically arranged along the length direction of the reference groove. Overall, the pressing plates 4 are of a symmetrical structure, and each part of the pressing plates 4 is symmetrically arranged along the length direction of the reference groove. This setting makes the areas of the pressing plates 4 disposed on the surfaces of the second plate 2 and the first plate 1 approximately the same, which is beneficial to evenly distribute the compressive stress on the second plate 2 and the first plate 1, and can avoid the situation that the clamping force is unevenly distributed due to less part of the pressing plates 4 disposed on the second plate 2 or the first plate 1, which is beneficial to improving the stability during the installation of the second plate 2.

[0041] In an embodiment of the present utility model, the pressing plate 4 includes a main body 41 and a cushion layer 42. The cushion layer 42 is disposed on the bottom surface of the main body 41 and is attached to the first plate 1 and the second plate 2. Please refer to Figure 2 In Figure 4 , since the fan blade is required to be lightweight and high-strength, glass fiber reinforced plastics, carbon fiber reinforced plastics and aramid reinforced plastics are usually used. For the main body 41 of the pressing plate 4 provided by the present utility model, in order to ensure its strength and consider the manufacturing cost, a hard metal material is usually used, including one of materials such as steel, copper alloy, and aluminum alloy. Therefore, in order to protect the first plate 1 and the second plate 2 and prevent the main body 41 from damaging the first plate 1 or the second plate 2, a cushion layer 42 needs to be provided between the main body 41 and the first plate 1 and the second plate 2. The manufacturing material of the cushion layer 42 needs to meet the characteristics of having a certain hardness and being heat-resistant, including one of butyl rubber sheets and silicone rubber sheets. At the same time, since the cushion layer 42 has a certain elasticity, it has a certain energy storage capacity, so as to prevent the bolt from loosening prematurely after the threaded member 5 applies prestress to the pressing plate 4.

[0042] Furthermore, in an embodiment of the present utility model, the main body 41 includes a reinforcing boss 411. The through hole includes a first straight hole and a second straight hole. The first straight hole is disposed on the reinforcing boss 411, and the second straight hole is disposed on the cushion layer 42 at the bottom of the reinforcing boss 411. The first straight hole and the second straight hole are correspondingly and communicatively arranged. Specifically, please refer to Figure 2, the main body 41 is provided with reinforcing bosses 411, which are thicker than other parts of the main body 41, used to improve the strength of this part. The main body 41 and the cushion layer 42 divide the through hole into two parts. The first straight hole is opened in the reinforcing boss 411, and the second straight hole is opened on the cushion layer 42 corresponding to the reinforcing boss 411. The first straight hole and the second straight hole are correspondingly arranged to jointly form a through hole for the threaded member 5 to pass through. This setting can significantly enhance the strength of the main body 41 and prevent the main body 41 from bending and deforming under the prestress of the threaded member 5. At the same time, the structural area of the side of the reinforcing boss 411 away from the cushion layer 42 is smaller than the structural area of the side of the reinforcing boss 411 in contact with the cushion layer 42, which can save materials and optimize the stress transmission path, enabling the reinforcing boss 411 to have enough area to contact the cushion layer 42 and avoiding stress concentration on the cushion layer 42.

[0043] Furthermore, in an embodiment of the present invention, there are two reinforcing bosses 411, and the two reinforcing bosses 411 are arranged at intervals. Each reinforcing boss 411 is provided with a first straight hole. Please refer to Figure 2 and Figure 3 , the two reinforcing bosses 411 are arranged at intervals, and each reinforcing boss 411 is provided with a first straight hole. Correspondingly, there are also two second straight holes on the cushion layer 42. One first straight hole and one second straight hole are correspondingly arranged and connected to form a through hole. Through this setting, it is beneficial to improve the overall strength of the main body 41, and the two first straight holes can limit each other, preventing the main body 41 on both sides of the first plate 1 from shifting during installation, thereby avoiding the phenomenon of unstable installation of the second plate 2.

[0044] In an embodiment of the present invention, the main body 41 further includes a connecting portion 412. The connecting portion 412 is arranged between the two reinforcing bosses 411, and the connecting portion 412 is provided with a hollow hole 413. Please refer to Figure 2 and Figure 3 , the connecting portion 412 is used to connect the reinforcing bosses 411 on both sides of it. Since there is no threaded member 5 passing through the connecting portion 412, the connecting portion 412 is not the main stress-bearing part. In order to save materials and reduce the overall mass of the pressing plate 4, a hollow hole 413 is opened in the connecting portion 412. The designer can extract the external load applied to the main body 41, and then simulate and analyze the stress situation of the main body 41 through numerical simulation software, and perform topological optimization on the connecting portion 412 according to the calculation results to determine the size of the hollow hole 413.

[0045] In an embodiment of the present invention, the reference groove is arranged on the side of the connecting portion 412 away from the cushion layer 42. This setting is beneficial for workers to quickly identify the position of the reference groove, so as to quickly install the pressing plate 4 at the preset position. In addition, arranging the reference groove on the connecting portion 412 can avoid affecting the strength of the reinforcing boss 411.

[0046] Please refer to Figure 2 Figure 2 In an embodiment of the present utility model, the pressing plate 4 further includes a holding member 43, and the holding member 43 is installed on a side of the main body 41 away from the cushion layer 42. Specifically, the holding member 43 includes a handle, and the handle is installed on a side of the main body 41 away from the cushion layer 42, so as to avoid inconvenient operation for workers caused by installing on both sides of the main body 41. In this embodiment, the handle is specifically installed in the middle of the main body 41, and the main body 41 is symmetrically arranged along the projection of the handle on the main body 41. This arrangement is beneficial to the moment balance on both sides of the handle and facilitates the taking and installation by workers. In another implementation, when the main body 41 is large in volume or heavy in mass, the handle may include two, and the two handles are respectively arranged at both side edges of the main body 41 and installed on a side of the main body 41 away from the cushion layer 42. During installation, a worker on one side of the first plate 1 holds the handles with both hands and lifts the main body 41 to make the cushion layer 42 closely attached to the first plate 1 and the second plate 2. Another worker passes the bolt through the through hole and through the spacing seam 3. The installation on the other side of the first plate 1 is the same. Align the through hole of the pressing plate 4 on this side with the bolt that has passed through the spacing seam 3, and make the cushion layer 42 in the pressing plate 4 on this side closely attached to the first plate 1 and the second plate 2. Finally, tighten the bolt to complete the installation of the pressing plates 4 on both sides.

[0047] The present utility model also proposes a clamping and positioning structure 1000. The clamping and positioning structure 1000 includes a clamping and positioning tooling 100. The specific structure of the clamping and positioning tooling 100 refers to the above embodiment. Since this clamping and positioning structure adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one. Among them, the first plate 1 is a web to be repaired in a fan blade, and the second plate 2 is a prefabricated new web to be bonded to the web to be repaired.

[0048] The working process of the clamping and positioning tooling 100 for assisting maintenance construction is as follows: After the second plate 2 is in place, there is a certain spacing gap 3 between the second plate 2 and the first plate 1. On one side of the first plate 1, a pressing plate 4 is used to closely adhere to the second plate 2 and the first plate 1, and the reference groove on the pressing plate 4 is aligned with the spacing gap 3. On the other side of the first plate 1, another pressing plate 4 is simultaneously used to closely adhere to the second plate 2 and the first plate 1, and bolts are used to pass through the through holes and the flat joints on the two pressing plates 4, and the bolts are pre-tightened. In this way, the two pressing plates 4 are initially installed on both sides of the first plate 1 and the second plate 2. Subsequently, the postures of the two pressing plates 4 on both sides are adjusted so that the reference grooves on the two pressing plates 4 on both sides are aligned with the spacing gap 3. After accurate positioning, the bolts are tightened. As the bolts are gradually tightened, under the action of the pressing plate 4, the second plate 2 gradually lies in the same plane as the first plate 1. Subsequently, in the non-clamping area where the pressing plate 4 is not installed, the spacing gap 3 is filled with structural adhesive, and an electric blanket is covered or a hot air blower is used for heating. After the structural adhesive is cured, the pressing plate 4 and the bolts are removed, and the spacing gap 3 is filled with structural adhesive again, and the structural adhesive is heated again using an electric blanket or a hot air blower. After waiting for the structural adhesive in the spacing gap 3 to be completely cured, the maintenance is completed.

[0049] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A clamping and positioning tooling, characterized in that, For clamping and positioning a first plate and a second plate with a set interval therebetween, the first plate and the second plate are arranged on the same plane, and an interval gap is provided between the second plate and the first plate. The clamping and positioning tooling includes: Pressing plates, the number of the pressing plates is two, the two pressing plates are respectively arranged on two sides of the first plate, and each pressing plate is used for being attached to the first plate and the second plate, and each pressing plate is provided with a through hole; Threaded members, the threaded members are inserted through the interval gap and the through holes located on two sides of the interval gap, so that the pressing plates are tightly attached to the first plate and the second plate; A reference groove is provided on the pressing plate, and the length direction of the reference groove is arranged parallel to the extending direction of the interval gap.

2. The clamping and positioning tooling according to claim 1, characterized in that, At least two through holes are arranged on the pressing plate at intervals, and the positions and numbers of the through holes provided on the two pressing plates are the same.

3. The clamping and positioning tooling according to claim 2, characterized in that, Two through holes are provided, the reference groove is arranged between the two through holes, and the connecting line of the two through holes coincides with the length direction of the reference groove.

4. The clamping and positioning tooling according to claim 3, characterized in that, The pressing plates are symmetrically arranged along the length direction of the reference groove.

5. The clamping and positioning tooling according to claim 1, characterized in that The pressing plate includes a main body and a cushion layer, the cushion layer is arranged on the bottom surface of the main body and is attached to the first plate and the second plate.

6. The clamping and positioning tooling according to claim 5, wherein The main body includes a reinforcing boss, the through hole includes a first straight hole and a second straight hole, the first straight hole is arranged on the reinforcing boss, the second straight hole is arranged on the cushion layer at the bottom of the reinforcing boss, and the first straight hole and the second straight hole are correspondingly communicated.

7. The clamping and positioning tooling according to claim 6, characterized in that Two reinforcing bosses are provided, the two reinforcing bosses are arranged at intervals, and the first straight hole is provided in each of the reinforcing bosses.

8. The clamping and positioning tooling according to claim 7, characterized in that, The main body further includes a connecting portion, the connecting portion is arranged between the two reinforcing bosses, and the connecting portion is provided with a hollow hole; The reference groove is arranged on a side of the connecting portion away from the cushion layer.

9. The clamping and positioning tooling according to claim 8, characterized in that The pressing plate further includes a holding member, and the holding member is installed on a side of the main body away from the cushion layer.

10. A clamping and positioning structure, characterized in that, The clamping and positioning structure includes the clamping and positioning tooling according to any one of claims 1 to 9, the first plate is a web to be repaired in a fan blade, and the second plate is a prefabricated new web to be bonded to the web to be repaired.

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