Thermal spraying anti-deformation tool for self-dumping guide cylinder
By setting up a support assembly in the thermal spraying and deformation-proof tooling of the self-tilting guide cylinder, the rigidity of the self-tilting guide cylinder is solved, and the problem of being susceptible to impact deformation at the starting position during thermal spraying is realized. stable clamping.
Patent Information
- Application Number
- CN202420868895.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The self-tilting guide cylinder is susceptible to deformation problems caused by high-speed particles during thermal spraying.
A self-tilting guide cylinder thermal spraying anti-deformation tool is designed. By providing a support assembly at one end of the self-tilting guide cylinder, the support assembly releases outwardly tightening force on the inner wall of the self-tilting guide cylinder to increase the rigidity of the self-tilting guide cylinder.
It effectively solves the problem that the spray position of the self-tilting guide cylinder surface is deformed by impact of high-speed particles during the spraying process, so that the self-tilting guide cylinder maintains a stable clamping state during the entire thermal spraying process.
Smart Images
Figure CN222434591U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of process processing, and more specifically, to a self-tilting guide tube thermal spraying anti-deformation tooling. Background Art
[0002] The self-tilt guide cylinder is an important component of the helicopter tilt mechanism. The self-tilt guide cylinder is installed on the upper end of the main reducer and is the sliding guide rail of the automatic tilt mechanism slide cylinder. In order to improve the corrosion resistance of the self-tilt guide cylinder, its surface is usually chrome-plated in traditional technology.
[0003] During the chrome plating process, a transition layer and a plating layer are formed on the surface of the self-tilting guide tube; if the self-tilting guide tube has slight defects, it is difficult to effectively form a transition layer on the surface of the guide tube. After chrome plating in local areas without a transition layer, bubbles will appear and bulges will form; and under the action of alternating loads caused by the continuous scraping of the self-tilting guide tube, the surface chrome layer is prone to peeling or even falling off; acidic and alkaline substances in the air enter between the substrate and the plating layer, further inducing substrate corrosion. When repaired again, due to the large amount of intensive superficial corrosion on the surface, an effective transition layer cannot be formed on the substrate surface again, and chrome electroplating repair can be performed.
[0004] Therefore, a technical solution of replacing plating with spraying is proposed: by replacing chrome plating with thermal spraying coating on the surface of the self-tilting guide tube; the technical problems of bulging and falling off of the chrome plating layer in the traditional technology are solved; but since the self-tilting guide tube is made of 7075 aluminum alloy, which has the characteristics of low hardness and relatively soft material, and the wall thickness at the spraying position is only 4mm, the high-speed particles generated by supersonic spraying (about 1.4 times the speed of sound) will cause more serious impact deformation at the starting position of the self-tilting guide tube. Utility Model Content
[0005] The utility model aims to solve the technical problem that the spraying start position of the self-tilting guide tube in the prior art is easily deformed by impact during the thermal spraying process, and proposes a self-tilting guide tube thermal spraying anti-deformation tooling.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A self-tilting guide tube thermal spraying anti-deformation tooling, comprising:
[0008] A positioning screw rod, wherein the positioning screw rod is inserted into the self-tilting guide cylinder;
[0009] A fixing assembly, the fixing assembly being connected to one end of the positioning screw and to the lower part of the self-tilting guide cylinder, and being used for supporting the self-tilting guide cylinder;
[0010] A support assembly, the support assembly is connected to the other end of the positioning screw and is clamped in the upper port of the self-tilting guide cylinder; the support assembly cooperates with the fixing assembly to fix the self-tilting guide cylinder therebetween;
[0011] Wherein, the fixing assembly and the supporting assembly are both detachable structures.
[0012] Further, the support assembly comprises: a cover plate, a first through hole is provided in the middle of the plate surface of the cover plate, the upper end of the positioning screw is passed through the first through hole, and the cover plate cover is provided on the upper port of the self-tilting guide cylinder;
[0013] A conical ring, the conical ring is located in the self-tilting guide cylinder; the conical ring is detachably connected to the bottom of the cover plate, and the distance between the conical ring and the cover plate is adjustable; a surface of the conical ring close to the inner wall of the self-tilting guide cylinder is set as a first inclined surface, and a gap is left between the conical ring and the inner wall of the self-tilting guide cylinder;
[0014] An expansion ring, wherein the expansion ring is located in the gap between the conical ring and the self-tilting guide cylinder; one side of the expansion ring is in contact with the inner wall of the self-tilting guide cylinder, and the other side is a second inclined surface matching the first inclined surface; the first inclined surface is pressed against the second inclined surface, so that the expansion ring applies an outward tensioning force to the self-tilting guide cylinder.
[0015] Furthermore, an annular positioning groove is provided on the lower surface of the cover plate, and the outer diameter of the positioning groove is matched with the outer diameter of the self-tilting guide cylinder.
[0016] Furthermore, a locking nut is threadedly connected to the upper end of the positioning screw, and the lower surface of the locking nut abuts against the upper surface of the cover plate.
[0017] Furthermore, the fixing assembly includes: a guide tube cover, the guide tube cover is a conical tube structure matching the conical tube section shape of the self-tilting guide tube; the guide tube cover is arranged above the conical tube section of the self-tilting guide tube, and is used to shield the conical tube section of the self-tilting guide tube;
[0018] A mounting plate is provided with a second through hole in the middle of the plate surface, the lower end of the positioning screw is connected to the second through hole, and the mounting plate is located below the self-tilting guide cylinder to support the bottom of the self-tilting guide cylinder.
[0019] Furthermore, the bottom of the guide tube cover protrudes outward to form an annular platform, and the annular platform completely covers the lower end surface of the self-tilting guide tube;
[0020] The edge of the mounting plate protrudes upward to form an annular abutment ring, the diameter and width of the annular abutment ring are adapted to the annular platform, and the annular abutment ring abuts against the lower end surface of the self-tilting guide cylinder;
[0021] The annular abutment ring and the annular platform are detachably connected to press and fix the lower end surface of the self-tilting guide cylinder.
[0022] Furthermore, a plurality of supporting feet are evenly arranged on the outer side of the annular abutment ring along the circumferential direction, and the supporting feet are detachably connected to the equipment turntable.
[0023] Furthermore, a plurality of weight-reducing holes are provided on the surface of the mounting plate.
[0024] The beneficial effects of the utility model are:
[0025] The present application provides a self-tilting guide tube thermal spraying anti-deformation tooling, which arranges a support assembly at one end of the self-tilting guide tube and uses the support assembly to release the outward tension force on the inner wall of the self-tilting guide tube, thereby increasing the rigidity of the self-tilting guide tube, thereby solving the technical problem that the spraying starting position on the surface of the self-tilting guide tube is deformed by the impact of high-speed particles during the spraying process; and enables the self-tilting guide tube to maintain a stable clamping state during the entire thermal spraying process. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of a self-tilting guide tube thermal spraying anti-deformation tooling provided in an embodiment of the utility model;
[0027] Figure 2 This is a schematic diagram of the internal structure of the support assembly in the embodiment of the utility model;
[0028] Figure 3 This is a schematic diagram of the cover plate structure in the embodiment of the utility model;
[0029] Figure 4 This is a schematic diagram of the conical ring structure in the embodiment of the utility model;
[0030] Figure 5 This is a schematic diagram of the expansion ring structure in the embodiment of the utility model;
[0031] Figure 6 This is a schematic diagram of the internal structure of a self-tilting guide tube thermal spraying anti-deformation tooling provided in an embodiment of the utility model;
[0032] Figure 7 This is a schematic diagram of the guide tube cover structure in the embodiment of the utility model;
[0033] Figure 8 This is a cross-sectional view of the guide tube cover in the embodiment of the utility model;
[0034] Fig. 9 This is a schematic diagram of the mounting plate structure in an embodiment of the utility model;
[0035] Fig.10 This is a cross-sectional view of a mounting plate in an embodiment of the utility model;
[0036] The markings in the figure are as follows:
[0037] 1. Fix the components;
[0038] 11. Guide tube cover; 111. Annular platform; 112. Third screw hole; 113. Second fastening bolt; 12. Mounting plate; 121. Second through hole; 122. Annular collar; 123. Fourth screw hole; 124. Support foot; 125. Third fastening bolt; 126. Weight reduction hole;
[0039] 2. Positioning screw;
[0040] 21. Locking nut;
[0041] 3. Support components;
[0042] 31. Cover plate; 311. First through hole; 312. First screw hole; 313. First fastening bolt; 314. Positioning groove; 32. Conical ring; 321. Second screw hole; 33. Expanding ring;
[0043] 4. Self-tilting guide cylinder. DETAILED DESCRIPTION
[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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.
[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0048] Example
[0049] Figures 1 to 10 The embodiment of the present application shown provides a self-tilting guide tube thermal spraying anti-deformation tooling, which is fixed in the center of the equipment turntable in actual application to facilitate operators to perform thermal spraying on the self-tilting guide tube, and includes: a fixing component 1, a positioning screw 2 and a supporting component 3.
[0050] See also Figure 2-Figure 3 The support assembly 3 adopts a detachable structure, which includes: a cover plate 31, a conical ring 32 and a ring 33; wherein, please refer to Figure 3 The cover plate 31 is a disc structure as a whole, and its diameter is slightly larger than the outer diameter of the cylindrical section of the self-tilting guide cylinder 4, so that it can be covered on the self-tilting guide cylinder 4 and completely cover the upper port of the self-tilting guide cylinder 4; a first through hole 311 is provided in the middle of the cover plate 31, and the aperture of the first through hole 311 is adapted to the positioning screw 2. The positioning screw 2 is penetrated in the first through hole 311 and can slide relative to the cover plate 31. By adopting this technical solution, the position of the cover plate 31 can be adjusted, so that the tooling can be suitable for fixing self-tilting guide cylinders 4 of different specifications.
[0051] A plurality of first screw holes 312 are evenly arranged on the upper circumferential edge of the plate surface of the cover plate 31 . First fastening bolts 313 are connected in the first screw holes 312 . The first fastening bolts 313 penetrate the cover plate 31 longitudinally to fix the conical ring 32 located below the cover plate 31 .
[0052] As a preferred embodiment of the present application, a positioning groove 314 is provided on the lower surface of the cover plate 31; the positioning groove 314 is annular in structure, and its outer diameter is adapted to the outer diameter of the self-tilt guide cylinder 4. After the cover plate 31 is connected to the self-tilt guide cylinder 4, the self-tilt guide cylinder 4 can fit on the groove wall of the positioning groove 314 on the outer side, thereby achieving a clamping positioning effect and avoiding the generation of a frame between the cover plate 31 and the self-tilt guide cylinder 4; further, the width of the positioning groove 314 is greater than the wall thickness of the self-tilt guide cylinder 4. After the cover plate 31 is connected to the self-tilt guide cylinder 4, an annular space for accommodating the expansion ring 33 is formed on the inner side of the positioning groove 314 near the center of the cover plate 31.
[0053] See also Figure 4 The conical ring 32 is located below the cover plate 31. The surface of the conical ring 32 is provided with second screw holes 321 that match the number and position of the first screw holes 312. The first screw holes 312 correspond to the second screw holes 321 one by one and are connected by the first fastening bolts 313, so that the conical ring 32 is installed below the cover plate 31. With this technical solution, the operator can adjust the distance between the conical ring 32 and the cover plate 31 by screwing the first fastening bolts 313.
[0054] The outer diameter of the conical ring 32 is slightly smaller than the inner diameter of the self-tilting guide cylinder 4, so that a gap is left between the conical ring 32 and the inner wall of the self-tilting guide cylinder 4; the longitudinal section of the conical ring 32 is trapezoidal, and its surface close to the self-tilting guide cylinder 4 is the first inclined surface; please refer to Figure 2 and Figure 5 When the locking nut 314 is unlocked, the locking nut 312 is unlocked and the locking nut 313 is unlocked, so that the locking nut 312 can be unlocked easily.
[0055] See also Figure 2 and Figure 6The upper end of the positioning screw 2 is passed through the first through hole 311, and the lower end thereof is connected to the fixing assembly 1, and the upper end of the positioning screw 2 is threadedly connected with a locking nut 21; the lower surface of the locking nut 21 abuts against the upper surface of the cover plate 31; when the self-tilting guide cylinder 4 is installed on the tooling, the position of the locking nut 21 on the positioning screw 2 is adjusted by screwing the locking nut 21, and the cover plate 31 is pressed against the self-tilting guide cylinder 4; when the spraying is completed, the locking nut 21 is loosened, and the cover plate 31 can be easily removed; as a preferred embodiment of the present application, the locking nut 21 adopts a knurled nut, and the surface of the knurled nut is provided with knurls, which can increase the friction and prevent the operator from slipping during the screwing process.
[0056] In the above technical solution, the fixing assembly 1 adopts a detachable structure, which includes: a guide sleeve cover 11 and a mounting plate 12; Figure 7-Figure 8 The guide tube cover 11 is a conical tube structure whose shape and size match the conical tube section of the self-tilting guide tube 4; the top and bottom of the guide tube cover 11 are both circular openings, and the size of its top opening is adapted to the cylindrical section of the self-tilting guide tube 4, and the guide tube cover 11 is arranged above the conical tube section of the self-tilting guide tube 4; because the thermal spray coating area is only the cylindrical section of the self-tilting guide tube 4, the design of the guide tube cover 11 can protect the conical tube section of the self-tilting guide tube 4 and prevent it from being sprayed; the guide tube cover 11 The bottom protrudes outward to form an annular platform 111; the annular platform 111 is located above the lower end surface of the self-tilt guide cylinder 4, and can completely cover the lower end surface of the self-tilt guide cylinder 4; a plurality of third screw holes 112 are provided on the annular platform 111; the second fastening bolts 113 are connected to the third screw holes 112; the second fastening bolts 113 are passed through the third screw holes 112 and the holes on the lower end surface of the self-tilt guide cylinder 4 to complete the positioning between the self-tilt guide cylinder 4 and the guide cylinder cover 11.
[0057] See also Figure 6 and Fig. 9 The mounting plate 12 is located below the self-tilting guide cylinder 4. The mounting plate 12 is a disc structure as a whole. The diameter of the disc surface matches the bottom opening diameter of the guide cylinder cover 11. A second through hole 121 is provided in the middle of the plate surface of the mounting plate 12. The lower end of the positioning screw 2 is passed through the second through hole 121 and is detachably connected to the mounting plate 12. With this technical solution, when the operator tightens the locking nut 21 to tighten the self-tilting guide cylinder 4, the distance between the mounting plate 12 and the cover plate 31 is shortened, and the self-tilting guide cylinder 4 is locked between the two.
[0058] Please refer to the figure Fig. 9 and Fig.10The edge of the mounting plate 12 protrudes upward to form an annular collar 122; the diameter and width of the annular collar 122 are matched with the annular platform 111, and abut against the lower end surface of the self-tilting guide cylinder 4; a plurality of fourth screw holes 123 are provided on the upper surface of the annular collar 122; the position and number of the fourth screw holes 123 correspond to the third screw holes 112, and the second fastening bolts 113 are successively passed through the third screw holes 112, the self-tilting guide cylinder 4, and the fourth screw holes 123, so as to clamp the lower end surface of the self-tilting guide cylinder 4 between the annular platform 111 and the annular collar 122, thereby completing the fixation of the self-tilting guide cylinder 4; after the spraying is completed, loosen the second fastening bolts 113 and remove the guide cylinder cover 11 from the upper end of the self-tilting guide cylinder 4, and the sprayed self-tilting guide cylinder 4 can be taken out.
[0059] As a preferred embodiment of the present application, a plurality of weight-reducing holes 126 are provided on the mounting plate 12 to reduce the weight of the mounting plate 12 and facilitate personnel to transfer the tooling; it is understandable that the mounting plate 12 can also be made of lightweight materials to achieve a weight-reducing effect.
[0060] As a preferred embodiment of the present application, a plurality of supporting feet 124 are evenly arranged along the circumferential direction on the outer side of the annular abutment ring 122, and a third fastening bolt 125 is threadedly connected to the supporting feet 124; the supporting feet 124 are in contact with the end face of the equipment turntable and are connected with the third fastening bolt 125, so that the self-tilting guide tube thermal spray anti-deformation tooling of the present application can be installed on the equipment turntable.
[0061] In the above technical scheme, the fixing component 1 can firmly connect the self-tilting guide cylinder 4 to the equipment turntable. During spraying, the self-tilting guide cylinder 4 rotates synchronously with the equipment turntable to cooperate with the staff to complete the spraying task; at the same time, the design of the guide cylinder cover 11 also protects the conical cylinder section of the self-tilting guide cylinder 4 from being sprayed, further ensuring the accuracy of thermal spraying; and the detachable structure adopted by the fixing component 1 facilitates the loading and unloading of the self-tilting guide cylinder 4 from the fixing component 1, thereby improving the processing efficiency.
[0062] The present application provides a self-tilting guide tube thermal spraying anti-deformation tooling, which arranges a support assembly 3 at one end of the self-tilting guide tube 4, and uses the support assembly 3 to release the outward tension force on the inner wall of the self-tilting guide tube 4, thereby increasing the rigidity of the self-tilting guide tube 4, thereby solving the technical problem that the spraying starting position on the surface of the self-tilting guide tube 4 is deformed by the impact of high-speed particles during the spraying process; and enables the self-tilting guide tube 4 to maintain a stable clamping state during the entire thermal spraying process.
[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A self-tilting guide tube thermal spraying anti-deformation tooling, characterized in that: include: A positioning screw (2), wherein the positioning screw (2) is inserted into the self-tilting guide cylinder; A fixing assembly (1), the fixing assembly (1) being connected to one end of the positioning screw (2) and connected to the lower part of the self-tilting guide cylinder, and being used to support the self-tilting guide cylinder; A support assembly (3), the support assembly (3) being connected to the other end of the positioning screw (2) and being clamped in the upper port of the self-tilting guide cylinder; the support assembly (3) cooperates with the fixing assembly (1) to fix the self-tilting guide cylinder therebetween; Wherein, the fixing component (1) and the supporting component (3) are both detachable structures.
2. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 1 is characterized in that: The support assembly (3) comprises: a cover plate (31), a first through hole (311) is provided in the middle of the plate surface of the cover plate (31), the upper end of the positioning screw (2) is inserted into the first through hole (311), and the cover plate (31) is covered on the upper port of the self-tilting guide cylinder; A conical ring (32), the conical ring (32) being located in the self-tilting guide cylinder; the conical ring (32) being detachably connected to the bottom of the cover plate (31), and the distance between the conical ring (32) and the cover plate (31) being adjustable; a surface of the conical ring (32) close to the inner wall of the self-tilting guide cylinder is set as a first inclined surface, and a gap is left between the conical ring (32) and the inner wall of the self-tilting guide cylinder; An expansion ring (33), wherein the expansion ring (33) is located in a gap between the conical ring (32) and the self-tilting guide cylinder; one side of the expansion ring (33) is in contact with the inner wall of the self-tilting guide cylinder, and the other side is a second inclined surface matching the first inclined surface; the first inclined surface is pressed against the second inclined surface, so that the expansion ring (33) applies an outward tensioning force to the self-tilting guide cylinder.
3. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 2 is characterized in that: An annular positioning groove (314) is provided on the lower surface of the cover plate (31), and the outer diameter of the positioning groove (314) is matched with the outer diameter of the self-tilting guide tube.
4. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 2 is characterized in that: The upper end of the positioning screw (2) is threadedly connected to a locking nut (21), and the lower surface of the locking nut (21) is in contact with the upper surface of the cover plate (31).
5. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 1 is characterized in that: The fixing assembly (1) comprises: a guide cylinder cover (11), the guide cylinder cover (11) being a conical cylinder structure matching the shape of the conical cylinder section of the self-tilting guide cylinder; the guide cylinder cover (11) is arranged above the conical cylinder section of the self-tilting guide cylinder and is used to shield the conical cylinder section of the self-tilting guide cylinder; A mounting plate (12), wherein a second through hole (121) is provided in the middle of the plate surface of the mounting plate (12), the lower end of the positioning screw (2) is connected to the second through hole (121), and the mounting plate (12) is located below the self-tilting guide cylinder and is used to support the bottom of the self-tilting guide cylinder.
6. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 5 is characterized in that: The bottom of the guide tube cover (11) protrudes outward to form an annular platform (111), and the annular platform (111) completely covers the lower end surface of the self-tilting guide tube; The edge of the mounting plate (12) protrudes upward to form an annular abutment ring (122), the diameter and width of the annular abutment ring (122) are adapted to the annular platform (111), and abuts against the lower end surface of the self-tilting guide cylinder; The annular abutment ring (122) and the annular platform (111) are detachably connected to press and fix the lower end surface of the self-tilting guide cylinder.
7. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 6 is characterized in that: A plurality of supporting feet (124) are evenly arranged on the outer side of the annular abutment ring (122) along the circumferential direction, and the supporting feet (124) are detachably connected to the equipment turntable.
8. The self-tilting guide tube thermal spraying anti-deformation tooling according to claim 5 is characterized in that: A plurality of weight-reducing holes (126) are provided on the plate surface of the mounting plate (12).