Thermal spraying support with workpiece protection function

Abstract

The invention relates to the technical field of thermal spraying, and discloses a thermal spraying support with a workpiece protection function, which comprises a thermal spraying support body, a machining seat is fixedly arranged on the thermal spraying support body, a clamping seat is rotatably arranged at the top end of the machining seat, a workpiece body is arranged on the clamping seat, a clamping assembly is arranged at the top end of the clamping seat, and the workpiece body is arranged on the clamping assembly. A transmission assembly is arranged in the machining base, and an air passing box is fixedly arranged on the other side of the thermal spraying support. According to the thermal spraying device, the motor body is started, and meanwhile, under mutual cooperation of the transmission assembly and the air outlet cooling assembly, intermittent air outlet of the cooling ring can be achieved, and a workpiece body subjected to thermal spraying can be cooled; meanwhile, due to the arrangement of the two flow guide blocks, the air flow speed can be increased, the cooling efficiency is improved, the temperature of the surface of the workpiece can be effectively reduced through timely heat dissipation, deformation of the workpiece caused by thermal expansion and cold contraction is reduced, and the size precision and shape stability of the workpiece are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of thermal spraying, in particular to a thermal spraying bracket with a workpiece protection function. Background Art

[0002] Thermal spraying refers to heating and melting the coating material, atomizing it into extremely fine particles with high-speed airflow, and spraying it onto the surface of the workpiece at a very high speed to form a coating. Different coating materials are selected according to needs to obtain one or more properties such as wear resistance, corrosion resistance, oxidation resistance, and heat resistance.

[0003] When thermal spraying a cylindrical workpiece, a thermal spray bracket is often used to support the workpiece, and then a holding mechanism (commonly a triangular chuck and a hydraulic rod in combination with a clamping tool) is used to clamp the workpiece, and then the workpiece surface is sprayed through a thermal spray nozzle.

[0004] In the patent with application announcement number CN221619821U, it includes a sliding plate, a bracket and a movable frame. The sliding plate is movably connected to the inside of the movable frame, the bracket is fixedly connected to both sides of the bottom of the movable frame, and a number of sliding plates are arranged and distributed at equal distances. The bottom of the sliding plate is fixedly connected to a fixed rod, the bottom of the surface of the fixed rod is fixedly connected to a movable sleeve, and the inside of the movable sleeve is movably connected to a rotating disk. The utility model arranges a rotating disk so that after the rotating disk rotates, the mounting block can be driven to rotate through the rotating rod, so that after the mounting block rotates, the suspension frame can be driven to rotate, which solves the problem that the existing suspension bracket does not have a self-rotating structure when the workpiece is rotationally sprayed.

[0005] In the prior art including the above-mentioned patents, a suspension frame is used to suspend the workpiece in mid-air. Since no heat dissipation structure is provided, the coating after thermal spraying on the workpiece will undergo performance changes due to continuous high temperature, such as reduced hardness and weakened wear resistance, thereby affecting the service life and performance of the coating. In addition, the workpiece is prone to thermal expansion under high temperature conditions. If the heat is not dissipated in time, the workpiece will be deformed due to excessive thermal stress, affecting the dimensional accuracy and shape stability of the workpiece. More seriously, it will directly cause thermal cracks to appear on the surface of the workpiece coating, reducing the quality of the coating and the strength of the workpiece. Summary of the invention

[0006] The problem to be solved by the present invention is that the above patent has the problem of low thermal protection performance.

[0007] To solve the above technical problems, the technical solution of the present invention is: a thermal spraying bracket with a workpiece protection function, comprising a thermal spraying bracket, a processing seat is fixedly arranged on the thermal spraying bracket, a clamping seat is rotatably arranged on the top of the processing seat, a workpiece body is arranged on the clamping seat, a clamping assembly is arranged on the top of the clamping seat, a transmission assembly is arranged inside the processing seat, an air box is fixedly arranged on the other side of the thermal spraying bracket, an air outlet cooling assembly is arranged on the air box, a cooling ring is fixedly arranged on the thermal spraying bracket above the clamping seat, a rotating seat rotatably connected to the processing seat is fixedly arranged at the bottom of the clamping seat, the interior of the processing seat is a cavity, and a motor body is installed on the inner wall of the processing seat, and the motor body and the rotating seat are connected by a rotating shaft.

[0008] The transmission assembly includes a cam mounted on the rotating shaft, a telescopic plate is slidably provided on the inner wall of the processing seat at one side of the rotating shaft, and one side of the telescopic plate is in contact with the arc-shaped outer wall of the cam, a push rod is fixedly provided on the other side of the telescopic plate, a piston body is fixedly provided on the end of the push rod, a piston cylinder fixedly connected to the inner wall of the processing seat is slidably provided on the piston body, a first one-way valve penetrating through both ends of the piston body is provided on the piston body, and a second one-way valve penetrating into the interior of the piston cylinder is provided on the side of the piston cylinder close to the telescopic plate.

[0009] The air outlet cooling assembly includes two guide blocks fixed to the bottom end of the inner wall of the air box, the top ends of the two guide blocks are fixedly connected by an upper partition, and a partition is fixedly arranged between the top end of the upper partition and the top end of the inner wall of the air box.

[0010] A first air inlet is provided at the bottom of the inner wall of the air box between the two guide blocks, and the first air inlet is connected to the output end of the air intake pipe through the air intake pipe. A second air outlet is provided at the bottom of the cooling ring, and the cooling ring is connected to the air box through the first air guide pipe.

[0011] Preferably, two guide bars are fixedly provided on the inner wall of the processing seat at both sides of the telescopic plate, and the two guide bars are slidably connected to the telescopic plate, a telescopic rod is fixed on each of the guide bars, and each telescopic rod output end is fixedly connected to the telescopic plate.

[0012] Preferably, a movable hole matching the push rod is provided on the piston cylinder. When the piston body slides toward the cam side, the first one-way valve is in an open state and the second one-way valve is in a closed state. When the piston body slides in the opposite direction, the first one-way valve is in a closed state and the second one-way valve is in an open state.

[0013] Preferably, the clamping assembly includes a fixed tooling fixedly connected to the top of the clamping seat, a movable tooling is slidably arranged on one side of the fixed tooling at the top of the clamping seat, two electric telescopic rods are respectively installed on both sides of the movable tooling at the top of the clamping seat, and the output end of each electric telescopic rod is fixedly connected to the side wall of the movable tooling.

[0014] Preferably, a first cavity is provided inside the air box between the two guide blocks, and the first cavity is trapezoidal. A second cavity is provided inside the air box on one side of the two guide blocks. The first cavity is connected to the second cavity, and the second cavity is connected to the first air duct.

[0015] Preferably, a collecting rack is fixedly provided on the thermal spraying bracket at one side of the processing seat, a storing groove is provided at the bottom end of the collecting rack, a plurality of pneumatic nozzles are fixed on the collecting rack above the storing groove, a third cavity is provided inside the air box above the upper partition, and the third cavity is located on one side of the second cavity, and the plurality of pneumatic nozzles are connected to the third cavity through a second air duct.

[0016] Preferably, a pressure storage assembly is provided inside the air box, and the pressure storage assembly includes a third one-way valve penetrating the flow partition, an elastic air bag is fixedly provided between the top of the inner wall of the air box and the top of the upper partition, and a pressure relief valve is provided at the input end of the second air duct. When air enters the second cavity, the third one-way valve is in an open state, and when the elastic air bag expands to be tightly attached to the inner wall of the air box, the pressure relief valve and the third one-way valve are both in an open state.

[0017] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0018] (1) The present invention starts the motor body, and with the cooperation of the transmission component and the air outlet cooling component, the cooling ring can intermittently discharge air, which can cool the thermally sprayed workpiece body. At the same time, the provision of two guide blocks can increase the air flow rate and improve the cooling efficiency. Timely heat dissipation can effectively reduce the temperature of the workpiece surface, reduce the deformation of the workpiece caused by thermal expansion and contraction, and ensure the dimensional accuracy and shape stability of the workpiece.

[0019] (2) The present invention starts the motor body, and with the cooperation of the transmission assembly, the air box and the two guide blocks, high-pressure air can enter the second cavity. At the same time, with the cooperation of the pressure storage assembly, the elastic airbag can be continuously inflated to store air pressure. When the elastic airbag is saturated, the pressure relief valve can be automatically opened, allowing the pneumatic nozzle to spray and collect the thermal spray liquid sputtered on the collection frame, thereby playing a collection role. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of the thermal spraying bracket of the present invention;

[0021] Figure 2 It is a schematic diagram of the back structure of the thermal spraying bracket of the present invention;

[0022] Figure 3 This is a bottom view structural diagram of the thermal spraying bracket of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the transmission assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the processing seat of the present invention when viewed from above;

[0026] Figure 7 For the present invention Figure 6 A partial enlarged view of middle A;

[0027] Figure 8 This is a schematic diagram of the connection structure between the gas box and the cooling ring of the present invention;

[0028] Fig. 9 This is a schematic diagram of the structure of the gas outlet cooling component and the pressure storage component of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the guide block of the present invention.

[0030] In the figure: 1, thermal spraying bracket; 11, processing seat; 12, clamping seat; 121, motor body; 122, rotating seat; 13, workpiece body; 14, clamping assembly; 141, fixed tooling; 142, movable tooling; 143, electric telescopic rod; 15, air box; 16, cooling ring; 17, collection rack; 171, pneumatic nozzle;

[0031] 2. Transmission assembly; 21. Cam; 22. Telescopic plate; 23. Push rod; 231. Piston body; 232. First one-way valve; 24. Piston cylinder; 241. Second one-way valve; 25. Intake pipe;

[0032] 3. Outlet air cooling assembly; 31. Guide block; 32. Upper baffle; 33. Baffle; 34. First air guide pipe;

[0033] 4. Pressure storage assembly; 41. Third one-way valve; 42. Elastic airbag; 43. Second air guide tube; 44. Pressure relief valve. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figures 1 to 10 As shown, a thermal spraying support with a workpiece protection function provided by the present invention comprises a thermal spraying support 1, a processing seat 11 is fixedly provided on the thermal spraying support 1, a clamping seat 12 is rotatably provided on the top of the processing seat 11, a workpiece body 13 is provided on the clamping seat 12, a clamping assembly 14 is provided on the top of the clamping seat 12, a transmission assembly 2 is provided inside the processing seat 11, an air box 15 is fixedly provided on the other side of the thermal spraying support 1, an air outlet cooling assembly 3 is provided on the air box 15, a cooling ring 16 is fixedly provided above the clamping seat 12 on the thermal spraying support 1, a rotating seat 122 rotatably connected to the processing seat 11 is fixedly provided at the bottom of the clamping seat 12, the interior of the processing seat 11 is a cavity, and a motor body 121 is installed on the inner wall of the processing seat 11, and the motor body 121 and the rotating seat 122 are connected by a rotating shaft.

[0037] The transmission assembly 2 includes a cam 21 mounted on the rotating shaft, a telescopic plate 22 is slidably provided on the inner wall of the processing seat 11 on one side of the rotating shaft, and one side of the telescopic plate 22 is in contact with the arc-shaped outer wall of the cam 21, a push rod 23 is fixedly provided on the other side of the telescopic plate 22, a piston body 231 is fixedly provided on the end of the push rod 23, a piston cylinder 24 fixedly connected to the inner wall of the processing seat 11 is slidably provided on the piston body 231, a first one-way valve 232 is provided on the piston body 231, and a second one-way valve 241 is provided on the side of the piston cylinder 24 close to the telescopic plate 22 and penetrating into the interior of the piston cylinder 24.

[0038] The air outlet cooling assembly 3 includes two guide blocks 31 fixed to the bottom end of the inner wall of the air box 15. The top ends of the two guide blocks 31 are fixedly connected by an upper partition plate 32. A partition plate 33 is fixedly arranged between the top end of the upper partition plate 32 and the top end of the inner wall of the air box 15.

[0039] A first air inlet is provided at the bottom end of the inner wall of the air box 15 between the two guide blocks 31, and the first air inlet is connected to the output end of the air inlet pipe 25 via the air inlet pipe 25. A second air outlet is provided at the bottom end of the cooling ring 16, and the cooling ring 16 is connected to the air box 15 via the first air guide pipe 34.

[0040] Two guide bars are fixedly provided on the inner wall of the processing seat 11 at both sides of the telescopic plate 22, and the two guide bars are slidably connected to the telescopic plate 22, a telescopic rod is fixed on each guide bar, and the output end of each telescopic rod is fixedly connected to the telescopic plate 22.

[0041] The piston cylinder 24 is provided with an active hole matching the push rod 23. When the piston body 231 slides toward the cam 21, the first one-way valve 232 is in an open state and the second one-way valve 241 is in a closed state. When the piston body 231 slides in the opposite direction, the first one-way valve 232 is in a closed state and the second one-way valve 241 is in an open state.

[0042] The clamping assembly 14 includes a fixed tooling 141 fixedly connected to the top of the clamping seat 12, a movable tooling 142 is slidably arranged on one side of the fixed tooling 141 at the top of the clamping seat 12, and two electric telescopic rods 143 are respectively installed on both sides of the movable tooling 142 at the top of the clamping seat 12, and the output end of each electric telescopic rod 143 is fixedly connected to the side wall of the movable tooling 142.

[0043] A first cavity is arranged inside the air box 15 between the two guide blocks 31 , and the first cavity is trapezoidal. A second cavity is arranged inside the air box 15 on one side of the two guide blocks 31 . The first cavity is connected to the second cavity, and the second cavity is connected to the first air duct 34 .

[0044] Before thermal spraying the workpiece body 13, the workpiece body 13 can be placed on the top of the processing seat 11, and then the two electric telescopic rods 143 can be started to push the movable tooling 142 to slide on the top of the clamping seat 12, so that the workpiece body 13 and the fixed tooling 141 are tightly attached to each other, which can play a role of limited clamping. At this time, the motor body 121 can be started to drive the rotating seat 122 equipped with the workpiece body 13 to rotate around the connection position with the processing seat 11 under the connection of the rotating shaft. At this time, the workpiece body 13 can be sprayed by starting the thermal spray gun. The body 13 is sprayed, and at the same time, the rotation of the rotating shaft can drive the cam 21 fixedly connected thereto to rotate. In this process, the cam 21 can push the telescopic plate 22 to slide between the two limit bars, and at the same time, the two telescopic rods can be compressed. With the continuous rotation of the cam 21, the telescopic plate 22 can be tightly attached to the arc-shaped outer wall of the cam 21 under the action of the elastic force of the telescopic rod, so that the telescopic plate 22 can slide back and forth, and at the same time, the push rod 23 fixedly connected to the telescopic plate 22 can be pushed back and forth, and then the piston body 231 fixed to the end of the push rod 23 can be driven to slide back and forth;

[0045] like Figure 7 When the piston body 231 slides from right to left, the first one-way valve 232 is closed, so that the air inside the piston cylinder 24 on the left side of the piston body 231 can be pushed to the inside of the air box 15 through the air intake pipe 25. At the same time, negative pressure is generated inside the piston cylinder 24 on the right side of the piston body 231, and the second one-way valve 241 is opened under pressure, and the air outside the piston cylinder 24 is drawn into it. When the piston body 231 slides from left to right, the second one-way valve 241 is closed, and the sliding of the piston body 231 can pressurize the space inside the piston cylinder 24 on the right side of the piston body 231, and the first one-way valve 232 is opened under pressure, and the air on the right side of the second one-way valve 241 is pushed to its left side.

[0046] During the process that the piston body 231 pushes the air inside the piston cylinder 24 to the inside of the air box 15 through the air intake pipe 25, the air enters the first cavity, and with the cooperation of the two guide blocks 31, the air flow rate can be accelerated and enter the second cavity, and then enter the cooling ring 16 through the first air guide pipe 34, and finally discharged through the second air outlet set at the bottom end of the cooling ring 16, which can play a role in dissipating the heat of the workpiece during the thermal spraying process, and at the same time achieve the purpose of heat dissipation protection, effectively reduce the temperature of the surface of the workpiece body 13, reduce the deformation of the workpiece body 13 caused by thermal expansion and contraction, and ensure the dimensional accuracy and shape stability of the workpiece body 13.

[0047] A collecting rack 17 is fixedly provided on the thermal spraying bracket 1 on one side of the processing seat 11, a storing groove is provided at the bottom of the collecting rack 17, a plurality of pneumatic nozzles 171 are fixed on the collecting rack 17 above the storing groove, a third cavity is provided inside the air box 15 above the upper partition 32, and the third cavity is located on one side of the second cavity, and the plurality of pneumatic nozzles 171 are connected to the third cavity through a second air duct 43.

[0048] A pressure storage assembly 4 is arranged inside the air box 15, and the pressure storage assembly 4 includes a third one-way valve 41 that penetrates the flow partition 33. An elastic air bag 42 is fixedly arranged between the top of the inner wall of the air box 15 and the top of the upper partition 32. A pressure relief valve 44 is arranged at the input end of the second air guide pipe 43. When air enters the second cavity, the third one-way valve 41 is in an open state. When the elastic air bag 42 expands to be tightly attached to the inner wall of the air box 15, the pressure relief valve 44 and the third one-way valve 41 are both in an open state.

[0049] When the workpiece body 13 is thermally sprayed, the motor body 121 can be started, and then the surface of the workpiece body 13 can be sprayed by the thermal spray gun. In this process, part of the spray liquid is splashed onto the collecting rack 17. With the cooperation of the transmission component 2, the air inside the piston cylinder 24 can intermittently enter the first cavity. At the same time, with the cooperation of the two guide blocks 31, the air flow rate is accelerated, so that the air pressure inside the second cavity is increased, and the third one-way valve 41 can be opened, so that the air inside the third cavity can be The elastic airbag 42 is intermittently inflated, causing the elastic airbag 42 to deform and expand. When the outer wall of the elastic airbag 42 is in close contact with the inner wall of the air box 15 and cannot continue to expand, the piston body 231 will continue to inflate the elastic airbag 42, thereby increasing the air pressure inside the elastic airbag 42, thereby pushing open the pressure relief valve 44, allowing the air inside the elastic airbag 42 to enter the second air duct 43, and then be discharged through a plurality of pneumatic nozzles 171, so as to clean the sputtered thermal spray liquid and collect it in the storage tank.

[0050] The working principle and use process of the present invention are as follows: before thermal spraying the workpiece body 13, the workpiece body 13 can be placed on the top of the processing seat 11, and then the two electric telescopic rods 143 can be started to push the movable tooling 142 to slide on the top of the clamping seat 12, so that the workpiece body 13 and the fixed tooling 141 are in close contact, which can play a role of limited clamping. At this time, the motor body 121 can be started to drive the rotating seat 122 equipped with the workpiece body 13 to rotate around the connection position with the processing seat 11 under the connection of the rotating shaft. At this time, the workpiece body 13 can be sprayed by starting the thermal spray gun. Part of the spraying liquid is splashed onto the collecting frame 17. At the same time, the rotation of the rotating shaft can drive the cam 21 fixedly connected thereto to rotate. During this process, the cam 21 can push the telescopic plate 22 to slide between the two limit bars and compress the two telescopic rods. With the continuous rotation of the cam 21, the telescopic plate 22 can be tightly attached to the arc-shaped outer wall of the cam 21 under the action of the elastic force of the telescopic rod, so that the telescopic plate 22 can slide back and forth, and at the same time, the push rod 23 fixedly connected to the telescopic plate 22 can be pushed back and forth, thereby driving the piston body 231 fixed at the end of the push rod 23 to slide back and forth. At this time, the piston body 231 and the piston cylinder can be moved back and forth. 24. With the cooperation of the first one-way valve 232 and the second one-way valve 241, the air inside the piston cylinder 24 is pushed to the inside of the air box 15 through the air inlet pipe 25. The air enters the first cavity. With the cooperation of the two guide blocks 31, the air flow rate can be accelerated and enter the second cavity. Then, it enters the cooling ring 16 through the first air guide pipe 34 and is finally discharged through the second air outlet provided at the bottom end of the cooling ring 16, which can play a role in heat dissipation of the workpiece during the thermal spraying process. When the air inside the piston cylinder 24 enters the second cavity from the first cavity, the air inside the second cavity The increase in air pressure can open the third one-way valve 41, intermittently inflate the elastic airbag 42 inside the third cavity, and cause the elastic airbag 42 to deform and expand. When the outer wall of the elastic airbag 42 is in close contact with the inner wall of the air box 15 and cannot continue to expand, the piston body 231 will continue to inflate the elastic airbag 42, thereby increasing the air pressure inside the elastic airbag 42, thereby pushing open the pressure relief valve 44, allowing the air inside the elastic airbag 42 to enter the second air duct 43, and then be discharged through multiple pneumatic nozzles 171, so as to clean the sputtered thermal spray liquid and collect it in the storage tank.

[0051] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A thermal spraying support with a workpiece protection function, comprising a thermal spraying support (1), characterized in that: A processing seat (11) is fixedly arranged on the thermal spraying support (1), a clamping seat (12) is rotatably arranged on the top of the processing seat (11), a workpiece body (13) is arranged on the clamping seat (12), a clamping assembly (14) is arranged on the top of the clamping seat (12), a transmission assembly (2) is arranged inside the processing seat (11), an air box (15) is fixedly arranged on the other side of the thermal spraying support (1), an air outlet cooling assembly (3) is arranged on the air box (15), a cooling ring (16) is fixedly arranged on the thermal spraying support (1) above the clamping seat (12), a rotating seat (122) rotatably connected to the processing seat (11) is fixedly arranged at the bottom of the clamping seat (12), the interior of the processing seat (11) is a cavity, and a motor body (121) is installed on the inner wall of the processing seat (11), and the motor body (121) and the rotating seat (122) are connected via a rotating shaft. The transmission assembly (2) comprises a cam (21) mounted on a rotating shaft, a telescopic plate (22) is slidably arranged on the inner wall of the processing seat (11) at one side of the rotating shaft, and one side of the telescopic plate (22) contacts the arc-shaped outer wall of the cam (21), a push rod (23) is fixedly arranged on the other side of the telescopic plate (22), a piston body (231) is fixedly arranged at the end of the push rod (23), a piston cylinder (24) fixedly connected to the inner wall of the processing seat (11) is slidably arranged on the piston body (231), a first one-way valve (232) penetrating through both ends of the piston body (231) is arranged on the piston body (231), and a second one-way valve (241) penetrating into the interior of the piston cylinder (24) is arranged on the side of the piston cylinder (24) close to the telescopic plate (22). The air outlet cooling assembly (3) comprises two guide blocks (31) fixed to the bottom end of the inner wall of the air passing box (15), the top ends of the two guide blocks (31) are fixedly connected via an upper partition (32), and a partition (33) is fixedly arranged between the top end of the upper partition (32) and the top end of the inner wall of the air passing box (15). A first air inlet is provided at the bottom end of the inner wall of the air box (15) between the two guide blocks (31), and the first air inlet is connected to the output end of the air inlet pipe (25) via the air inlet pipe (25). A second air outlet is provided at the bottom end of the cooling ring (16), and the cooling ring (16) is connected to the air box (15) via the first air guide pipe (34).

2. A thermal spraying support with workpiece protection function according to claim 1, characterized in that: Two guide bars are fixedly provided on the inner wall of the processing seat (11) at both sides of the telescopic plate (22), and the two guide bars are slidably connected to the telescopic plate (22), a telescopic rod is fixed on each of the guide bars, and the output end of each telescopic rod is fixedly connected to the telescopic plate (22).

3. The thermal spraying support with workpiece protection function according to claim 1, characterized in that: The piston cylinder (24) is provided with an active hole matching the push rod (23); when the piston body (231) slides toward the cam (21), the first one-way valve (232) is in an open state, and the second one-way valve (241) is in a closed state; when the piston body (231) slides in the opposite direction, the first one-way valve (232) is in a closed state, and the second one-way valve (241) is in an open state.

4. The thermal spraying support with workpiece protection function according to claim 1, characterized in that: The clamping assembly (14) comprises a fixed tool (141) fixedly connected to the top of the clamping seat (12); a movable tool (142) is slidably arranged on one side of the fixed tool (141) at the top of the clamping seat (12); two electric telescopic rods (143) are respectively installed on both sides of the movable tool (142) at the top of the clamping seat (12); and the output end of each electric telescopic rod (143) is fixedly connected to the side wall of the movable tool (142).

5. The thermal spraying support with workpiece protection function according to claim 1, characterized in that: A first cavity is provided inside the air box (15) between the two guide blocks (31), and the first cavity is trapezoidal. A second cavity is provided inside the air box (15) on one side of the two guide blocks (31), the first cavity is connected to the second cavity, and the second cavity is connected to the first air guide pipe (34).

6. The thermal spraying support with workpiece protection function according to claim 1, characterized in that: A collecting rack (17) is fixedly arranged on the thermal spraying bracket (1) at one side of the processing seat (11), a receiving groove is arranged at the bottom end of the collecting rack (17), a plurality of pneumatic nozzles (171) are fixedly arranged on the collecting rack (17) above the receiving groove, a third cavity is arranged inside the air box (15) above the upper partition (32), and the third cavity is located on one side of the second cavity, and the plurality of pneumatic nozzles (171) are connected to the third cavity via a second air guide pipe (43).

7. The thermal spraying support with workpiece protection function according to claim 6, characterized in that: A pressure storage assembly (4) is arranged inside the air box (15), and the pressure storage assembly (4) comprises a third one-way valve (41) penetrating the flow partition (33). An elastic air bag (42) is fixedly arranged between the top of the inner wall of the air box (15) and the top of the upper partition (32). A pressure relief valve (44) is arranged at the input end of the second air guide pipe (43). When air enters the second cavity, the third one-way valve (41) is in an open state. When the elastic air bag (42) expands to be in close contact with the inner wall of the air box (15), the pressure relief valve (44) and the third one-way valve (41) are both in an open state.

Images