A protective tooling for thermal spraying

Abstract

The utility model belongs to thermal spraying technical field discloses a kind of protective tool for thermal spraying, including the end cap assembly for staggered clamping pipeline to prevent splashing, further including the shell assembly for from two sides wrapping pipeline to carry out protection, shell assembly two sides are provided with the execution component for guiding thermal spraying and suction recovery, end cap assembly symmetrically is provided with two, respectively inserts in shell assembly two ends;Shell assembly includes shell body, shell body is two half formula, and pass through from front to back, two for sliding adjustment adjusting mechanisms for symmetry being provided with in shell body two sides, two groups staggered insertion slot are symmetrically provided in shell body two ends.The utility model of a kind of protective tool for thermal spraying, by modularization, adjustable protection and recovery integration design, solve the problem such as splashing pollution in traditional thermal spraying, poor adaptability, operation is complicated etc., with environmental protection, high efficiency and economy, suitable for the thermal spraying operation of pipeline and other cylindrical workpieces.

Description

Technical Field

[0001] This utility model belongs to the field of thermal spraying technology, and in particular relates to a protective tooling for thermal spraying. Background Technology

[0002] Thermal spraying, a core process in modern surface engineering, heats the coating material to a molten or semi-molten state using a high-temperature heat source, then sprays it onto the substrate surface as a high-speed airflow to form a functional coating. This technology not only significantly improves the wear and corrosion resistance of parts but also enables dimensional repair of damaged components, playing an irreplaceable role in aerospace, energy equipment, and other fields. As a crucial process in surface engineering, thermal spraying places stringent requirements on operator safety and spraying quality.

[0003] Comparing with Chinese Patent No. CN215313285U, a protective fixture for thermal spraying is disclosed, including a bucket-shaped mounting shell. One side of the bucket-shaped mounting shell is provided with a protective area adjustment component, which includes an external threaded cylinder and an internal threaded extended protective shell. The other side of the external threaded cylinder is fixedly connected to one side of the bucket-shaped mounting shell. The internal threaded extended protective shell is threaded onto the outside of the external threaded cylinder. A ring-shaped helical gear is fixedly fitted onto the outside of the internal threaded extended protective shell. A rectangular sliding groove, a rectangular slider, and a rectangular push rod are configured to cooperate, causing a reversible motor to move while simultaneously driving a transmission helical gear to rotate. The transmission helical gear drives the ring-shaped helical gear to rotate, which in turn drives the internal threaded extended protective shell to rotate. The internal threaded extended protective shell, in conjunction with the external threaded cylinder, adjusts the protective area, facilitating better adjustment of the protective area according to different working conditions.

[0004] However, the aforementioned patents are difficult to apply to thermal spraying operations on cylindrical workpieces such as pipes, and lack waste recycling design, which can easily cause splashing and environmental pollution. Therefore, a new type of equipment needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a protective fixture for thermal spraying to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective fixture for thermal spraying includes an end cap assembly for misaligning and clamping a pipe to prevent splashing, and a cover assembly for wrapping the pipe from both sides for protection. The cover assembly has actuators on both sides for guiding and suction-recovering the thermal spray. Two end cap assemblies are symmetrically arranged and inserted into both ends of the cover assembly. The cover assembly includes a cover body, which is bisected and extends through the pipe. The cover body has two symmetrically arranged connecting edges at the top and bottom, with several fixing bolts symmetrically installed on the connecting edges. Two adjusting mechanisms for sliding adjustment are symmetrically arranged on both sides of the cover body, and two sets of misaligned slots are symmetrically arranged at both ends of the cover body. The actuators include a spraying mechanism for guiding the thermal spray and a recovery mechanism for suction-recovering the splashed material.

[0008] Furthermore: the end cap assembly includes two end cap plates that are staggered and fitted together, a clamping groove is provided in the middle of the intersection of the two end cap plates, and overrun protrusions are provided at both ends of the intersection of the end cap plates.

[0009] Furthermore, a handle is provided on the outer edge of the end cover plate, and the surface of the handle is provided with anti-slip texture.

[0010] Furthermore: the adjustment mechanism includes a limiting slide fixedly disposed on the side of the cover body, the limiting slide being horizontally disposed, and a locking pin being installed on the limiting slide.

[0011] Furthermore: the cover body is cubic in shape, and overrun grooves are provided at the intersection of the misaligned slots.

[0012] Furthermore: the spraying mechanism includes a guide tube, the inner wall surface of which is provided with a high-temperature resistant protective layer, and the outer end of which is provided with a connecting flange, the connecting flange having four mounting holes evenly distributed around its circumference; the recovery mechanism includes a suction tube, the outer end of which is provided with a pipe joint.

[0013] Furthermore, the inner diameter of the suction tube is larger than the inner diameter of the guide tube.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. Through modular, adjustable integrated protection and recycling design, it solves the problems of splash pollution, poor adaptability and cumbersome operation in traditional thermal spraying. It is environmentally friendly, efficient and economical, and is suitable for thermal spraying of cylindrical workpieces such as pipes.

[0016] 2. By combining the two-half housing assembly with the staggered end cap assembly, a closed space is formed to enclose the pipeline, effectively blocking the spread of thermal spraying splatter and reducing pollution in the working environment; the suction pipe design (with an inner diameter larger than the guide pipe) works in conjunction with external suction equipment to collect splatter waste to the post-processing device in real time, significantly reducing environmental pollution and material waste.

[0017] 3. The guide tube and suction tube are adjusted by sliding through the limiting sleeve, which can precisely control the distance between them and the pipe surface (to adapt to different spraying process requirements), and are quickly fixed by locking pins to ensure stability; the guide tube for directional spraying combined with the suction tube for immediate cleaning reduces coating defects and improves spraying uniformity.

[0018] 4. The casing body adopts a two-part bolt connection. The end cover plate clamping groove can be adjusted according to the outer diameter of the pipe to adapt to different pipe diameters and improve the versatility of tooling. The end cover assembly achieves quick insertion and fixation through the misaligned slot and the overtravel groove (with overtravel convex plate cooperation) without complicated tools. The handle design (anti-slip texture) is easy to grip and adjust. The pipe centering positioning is automatically calibrated by the clamping groove, simplifying the installation process.

[0019] 5. The non-fixed end cover design allows the tooling to rotate or move axially as a whole, enabling full-surface spraying of the pipeline without repeated disassembly and assembly, thus improving efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a protective tooling for thermal spraying as described in this utility model;

[0021] Figure 2 This is a schematic diagram of the cover assembly of a protective tooling for thermal spraying as described in this utility model;

[0022] Figure 3 This is an enlarged view of point A of the protective tooling for thermal spraying described in this utility model;

[0023] Figure 4 This is a schematic diagram of the execution components of a protective tooling for thermal spraying as described in this utility model;

[0024] Figure 5 This is a schematic diagram of the end cap assembly of a protective tooling for thermal spraying described in this utility model;

[0025] Figure 6 This is a top view of the end cap assembly of a protective tooling for thermal spraying described in this utility model.

[0026] In the attached drawings, the following are the reference numerals: 101, housing body; 102, fixing bolt; 103, limiting sleeve; 104, locking pin; 105, misaligned slot; 106, overtravel groove; 107, connecting flange; 201, guide tube; 202, high-temperature resistant protective layer; 203, connecting flange; 204, mounting hole; 205, suction tube; 206, pipe fitting; 301, end cover plate; 302, clamping groove; 303, handle; 304, overtravel protrusion; 305, anti-slip texture. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 A protective tooling for thermal spraying includes an end cap assembly for misaligning and clamping a pipe to prevent splashing, and a housing assembly for wrapping the pipe from both sides for protection. The housing assembly has actuators on both sides for guiding thermal spraying and suction recovery. Two end cap assemblies are symmetrically arranged and inserted into both ends of the housing assembly.

[0029] In this embodiment: the housing assembly includes a housing body 101, which is a two-part structure that extends from front to back. The housing body 101 has two symmetrically arranged connecting edges 107, each with a plurality of fixing bolts 102 symmetrically mounted. Two symmetrically arranged adjustment mechanisms for sliding adjustment are located on both sides of the housing body 101. Two sets of misaligned slots 105 are symmetrically arranged at both ends of the housing body 101. The adjustment mechanism includes a limiting slide sleeve 103 fixedly mounted on the side of the housing body 101. The limiting slide sleeve 103 is horizontally positioned and has a lock mounted on it. Tightening nail 104; the cover body 101 is cubic in shape, and the staggered slot 105 is provided with an overtravel groove 106; the cover body 101 is used to wrap the pipe from both sides, and the connecting edge 107 is tightened by the fixing bolt 102 to fix the cover body 101. The staggered slot 105 is used to insert and fix the end cover plate 301, the overtravel groove 106 is used to insert and fix the overtravel protrusion 304, the limiting sleeve 103 is used to support the sliding of the guide tube 201 and the suction tube 205 and adjust the distance with the pipe surface, and the locking nail 104 is used to press and fix the guide tube 201 and the suction tube 205.

[0030] In this embodiment: the execution components include a spraying mechanism for guiding thermal spraying and a recovery mechanism for sucking up and recovering splashes; the spraying mechanism includes a guide pipe 201, the inner wall surface of which is provided with a high-temperature resistant protective layer 202, and a connecting flange 203 at the outer end of the guide pipe 201, with four mounting holes 204 evenly distributed around the circumference of the connecting flange 203; the recovery mechanism includes a suction pipe 205, the outer end of which is provided with a pipe joint 206; the inner diameter of the suction pipe 205 is larger than the inner diameter of the guide pipe 201; the guide pipe 201 is fixed to the thermal spraying equipment through the mounting holes 204 on the connecting flange 203, so that the spray flow is sprayed onto the pipe surface under the guidance of the guide pipe 201, and the suction pipe 205 introduces suction force through the pipe joint 206 to suck up and collect the waste to the post-processing equipment, thereby reducing environmental pollution;

[0031] In this embodiment: the end cap assembly includes two end cap plates 301 that are staggered and fitted together. A clamping groove 302 is provided in the middle of the intersection of the two end cap plates 301, and overtravel protrusions 304 are provided at both ends of the intersection of the end cap plates 301. A handle 303 is provided on the outer edge of the end cap plate 301, and the surface of the handle 303 is provided with anti-slip texture 305. The clamping groove 302 on the end cap plate 301 is adjusted according to the outer circle of the pipe so that the clamping groove 302 fits with the outer circle of the pipe. By holding the handle 303, the two end cap plates 301 at the same end are inserted into the staggered slots 105 from both sides of the cover body 101. The overtravel protrusions 304 are inserted into the overtravel grooves 106. The end cap plates 301 clamp and fix the pipe through the clamping grooves 302, so that the pipe is in the center position of the cover body 101, forming a barrier against the outward splashing of waste.

[0032] Working principle: During installation and fixing, first adjust the clamping groove 302 on the end cover plate 301 according to the outer circle of the pipe, so that the clamping groove 302 fits the outer circle of the pipe. Then, wrap the pipe from both sides with the cover body 101 and tighten the connecting edge 107 with the fixing bolts 102 to fix the cover body 101. Then, hold the handle 303 and insert the two end cover plates 301 at one end into the misalignment slots 105 from both sides of the cover body 101. Insert the overtravel protrusion 304 into the overtravel groove 106. The end cover plates 301 clamp and fix the pipe through the clamping grooves 302, so that... The pipe is located at the center of the cover body 101. Then, slide the guide pipe 201 along the limiting sliding sleeve 103 on one side of the cover body 101, adjust the distance between the discharge end of the guide pipe 201 and the surface of the pipe, and tighten the locking nail 104 to fix it. Then, slide the suction pipe 205 along the limiting sliding sleeve 103 on the other side of the cover body 101, adjust the distance between the suction end of the suction pipe 205 and the surface of the pipe, and tighten the locking nail 104 to fix it. Finally, insert the two end caps 301 at the other end into the misaligned slots 105 from both sides of the cover body 101 to clamp and fix the pipe.

[0033] During thermal spraying, the guide pipe 201 is fixed to the thermal spraying equipment through the mounting hole 204 on the connecting flange 203, so that the jet stream is sprayed onto the pipe surface under the guidance of the guide pipe 201. At the same time, the enclosed space formed by the cover body 101 and the end cover plate 301 reduces the splashing of waste. The suction pipe 205 introduces suction force through the pipe joint 206 to draw the waste into the post-processing equipment, reducing environmental pollution. Moreover, since the end cover plate 301 is not completely fixed to the pipe, thermal spraying of various parts of the pipe surface can be completed simply by holding the whole and rotating it or moving it along the pipe axis.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective fixture for thermal spraying, comprising an end cap assembly for misaligning and clamping a pipe to prevent splashing, characterized in that: It also includes a housing assembly for protecting the pipe from both sides, wherein the housing assembly has actuators on both sides for guiding thermal spraying and suction recovery, and two end cap assemblies are symmetrically arranged and respectively inserted into both ends of the housing assembly; The housing assembly includes a housing body (101), which is a two-part structure that extends from front to back. The housing body (101) has two symmetrical connecting edges (107) on its upper and lower sides. Several fixing bolts (102) are symmetrically installed on the connecting edges (107). Two adjustment mechanisms for sliding adjustment are symmetrically arranged on both sides of the housing body (101). Two sets of misaligned slots (105) are symmetrically arranged at both ends of the housing body (101). The execution components include a spraying mechanism for guiding thermal spraying and a recovery mechanism for sucking up and recovering splashes.

2. The protective fixture for thermal spraying according to claim 1, characterized in that: The end cap assembly includes two end cap plates (301) that are staggered and fitted together. A clamping groove (302) is provided in the middle of the intersection of the two end cap plates (301), and overrun protrusions (304) are provided at both ends of the intersection of the end cap plates (301).

3. The protective fixture for thermal spraying according to claim 2, characterized in that: The outer edge of the end cover plate (301) is provided with a handle (303), and the surface of the handle (303) is provided with anti-slip texture (305).

4. The protective fixture for thermal spraying according to claim 1, characterized in that: The adjustment mechanism includes a limiting sleeve (103) fixedly disposed on the side of the cover body (101), the limiting sleeve (103) is horizontally disposed, and a locking pin (104) is installed on the limiting sleeve (103).

5. A protective fixture for thermal spraying according to claim 4, characterized in that: The cover body (101) is cubic in shape, and the staggered slots (105) are provided with overrun slots (106) at the intersection.

6. The protective fixture for thermal spraying according to claim 1, characterized in that: The spraying mechanism includes a guide pipe (201), the inner wall surface of which is provided with a high-temperature resistant protective layer (202), and the outer end of the guide pipe (201) is provided with a connecting flange (203), the connecting flange (203) having four mounting holes (204) evenly distributed around its circumference; the recovery mechanism includes a suction pipe (205), the outer end of which is provided with a pipe connector (206).

7. A protective fixture for thermal spraying according to claim 6, characterized in that: The inner diameter of the suction tube (205) is larger than the inner diameter of the guide tube (201).

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