Pipe plasma spraying equipment and using method

Abstract

The invention relates to the technical field of surface treatment equipment, in particular to pipe plasma spraying equipment and a using method.The pipe plasma spraying equipment comprises a fixing frame, one side of the fixing frame is rotationally connected with a pipe fixing assembly, the side, away from the fixing frame, of the pipe fixing assembly is provided with a supporting table, and a supporting barrel is vertically fixed to the supporting table; the supporting cylinder is connected with a double-face spraying assembly. The double-face spraying assembly comprises a sliding column, and a first connecting rod and a second connecting rod are fixed to the upper end of the sliding column. The first connecting rod and the second connecting rod are arranged at an interval up and down along the sliding column; a first telescopic spraying component is fixed to the first connecting rod, and a second telescopic spraying component is connected to the second connecting rod. The first telescopic spraying part and the second telescopic spraying part are arranged in a linkage mode. Through the arrangement of the double-face spraying assembly, the inner side wall and the outer side wall of the pipe can be subjected to surface spraying treatment at the same time, it is guaranteed that the surface of the pipe is evenly sprayed, and the overall production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment equipment, and in particular to a pipe plasma spraying equipment and a use method thereof. Background Art

[0002] Plasma spraying is a commonly used thermal spraying technology that uses plasma to spray materials onto the surface of a workpiece to form a coating. Plasma spraying is widely used in aerospace, automotive, electronics, metallurgy, energy and other fields. It can be used to spray metals, ceramics, concrete and other materials. It can improve the surface properties of materials and has high application value.

[0003] In current technology, the surface spraying treatment of pipes is often carried out by completing the outer surface first and then treating the inner surface. Although this treatment method can ensure a good coating effect on the surface of the pipe, its process flow has some obvious disadvantages. First, the spraying treatment of the outer and inner sides needs to be carried out separately, which means that each surface needs to be treated separately, which not only increases the production process, but also significantly increases the operation time and labor intensity. Secondly, due to the two independent spraying processes, the switching, adjustment and cleaning of the equipment will also consume a lot of time and resources, resulting in a decrease in overall production efficiency.

[0004] Chinese patent CN116200699B discloses an energy-saving ion spraying equipment and a processing method thereof, comprising a spraying frame, a bearing platform, a first spraying component and a second spraying component; the bearing platform is arranged on the spraying frame; the first spraying component is used to spray the outer side of the bottle body; the second spraying component comprises a moving frame, an inner spraying pipe, an inner spraying head, an inner paint supply part and a sliding member; the moving frame is slidably connected to the spraying frame through the sliding member, and the inner paint supply part is connected to the moving frame; one end of the inner spraying pipe is connected to the inner paint supply part, and the other end can be extended into the bottle body; the spraying head is arranged on the inner spraying pipe; the inner spraying pipe is fed with material through the inner paint supply part, and the outer side of the bottle body is sprayed in cooperation with the first spraying component, so as to realize comprehensive spraying of the bottle body, reduce the spraying process of the bottle body, and thus improve the spraying efficiency of the bottle body.

[0005] The above patent adopts the first spraying assembly, the second spraying assembly and the third spraying assembly to respectively realize the spraying of the outer side, the inner side and the bottom of the bottle body, thereby achieving the function of comprehensive spraying of the bottle body. Although the spraying efficiency is improved, the equipment structure is relatively complicated because multiple spraying assemblies are used. Therefore, there is an urgent need for a device with a simple structure that can realize simultaneous spraying of the inner and outer surfaces. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to propose a pipe plasma spraying equipment and a method of use. By setting a double-sided spraying component, the first airbag and the second airbag are repeatedly and alternately inflated and deflated, so that the inner wall and the outer wall of the pipe are simultaneously sprayed, ensuring uniform surface spraying of the pipe, avoiding an increase in production processes and waste of resources, and improving overall production efficiency; by setting a pipe fixing component, the device can perform surface treatment on pipes of different diameters, thereby increasing the practicality of the device.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: The present invention provides a pipe plasma spraying device, comprising a fixing frame, one side of the fixing frame is rotatably connected to a pipe fixing assembly, a support platform is provided on the side of the pipe fixing assembly away from the fixing frame, a support cylinder is vertically fixed on the support platform, and a double-sided spraying assembly is connected to the support cylinder; The double-sided spray assembly includes a sliding column, the lower end of which is slidably inserted and connected in a supporting tube, and a first connecting rod and a second connecting rod are fixed to the upper end of the sliding column; the first connecting rod and the second connecting rod are arranged at intervals along the sliding column; a first telescopic spray component is fixed on the first connecting rod, and a second telescopic spray component is connected to the second connecting rod; the first telescopic spray component and the second telescopic spray component are linked.

[0008] Preferably, the first telescopic spraying component comprises a first circular plate and a second circular plate arranged in parallel on the left and right sides, the first circular plate is fixed on the first connecting rod; an electric telescopic rod is connected between the first circular plate and the second circular plate, a first airbag is also sealed and fixedly connected between the first circular plate and the second circular plate, and the electric telescopic rod is located inside the first airbag; a first spraying head is fixed on the side of the second circular plate away from the first circular plate; The second telescopic spraying component comprises a third circular plate and a fourth circular plate arranged in parallel on the left and right sides, the third circular plate is fixed on the second connecting rod; a telescopic member is connected between the third circular plate and the fourth circular plate, a second airbag is also sealed and fixedly connected between the third circular plate and the fourth circular plate, and the telescopic member is located inside the second airbag; a second spraying head is fixed on the side of the fourth circular plate away from the third circular plate; A ventilation tube is connected between the first circular plate and the third circular plate, one end of the ventilation tube is connected to the first airbag, and the other end of the ventilation tube is connected to the second airbag; connecting rings are fixed on the outer edges of the opposite sides of the first circular plate and the third circular plate, and a pull rod is passed between the two connecting rings; the end of the pull rod located on the first circular plate side is fixedly connected to the second circular plate, and the end of the pull rod located on the third circular plate side is fixedly connected to the fourth circular plate.

[0009] Preferably, the pipe fixing assembly includes a fixed disk, one side of the fixed disk is provided with a rotating shaft, and the rotating shaft is rotatably connected to the fixed frame; a stepper motor is fixed on the fixed frame, and the output shaft of the stepper motor is fixedly connected to the rotating shaft; a threaded hole is opened in the middle of the other side of the fixed disk, and an abutment column is screwed on the threaded hole; a circular ring is coaxially fixed on the other side of the fixed disk, and a pipe clamping piece is installed on the circular ring, and the abutment column is located outside the threaded hole. One end of the abutment column abuts against the pipe clamping piece.

[0010] Preferably, the pipe clamping part includes a central circular plate, and a plurality of rotating rods are evenly distributed and rotatably connected to the outer circumference of the central circular plate, and the end of the rotating rod away from the central circular plate is rotatably connected to the sliding rod; a plurality of through holes corresponding to the sliding rod are opened on the circular ring, and a plurality of limiting cylinders are fixed to the inner wall of the circular ring, and the positions of the limiting cylinders and the through holes correspond one by one; the plurality of sliding rods are all inserted into the corresponding limiting cylinders and the ends extend out of the through holes; the central circular plate and the sliding rod are arranged in parallel left and right, and the central circular plate is located on the left side of the sliding rod, and the angle between the sliding rod and the rotating rod is β, and the β is less than 180°.

[0011] Preferably, an operating groove is provided on the circular ring between the two limiting cylinders, the operating groove is arranged on a side close to the fixed disk, and the limiting cylinder is arranged on a side away from the fixed disk.

[0012] Preferably, a plurality of limiting holes are axially provided on the support tube, a plurality of circular grooves corresponding to the limiting holes are provided at the lower end of the sliding column, and the limiting holes and the circular grooves are connected in a limiting manner by means of latches.

[0013] Preferably, a Y-shaped support frame is detachably mounted on the support platform, and a strip-shaped protrusion is provided in the top groove of the Y-shaped support frame.

[0014] Preferably, a spray supply unit is also installed on the support platform, and the first spray head and the second spray head are connected to the spray supply unit through supply hoses respectively.

[0015] Preferably, the telescopic member comprises a plurality of rods which are continuously sleeved in sequence, one end of the rod at the rightmost end of the telescopic member is fixedly connected to the third circular plate, and one end of the rod at the leftmost end of the telescopic member is fixedly connected to the fourth circular plate; a limiting ring is provided at the left end of the rod, and a limiting circle is provided at the right end of the rod.

[0016] The present invention also provides a method for using the pipe plasma spraying equipment, comprising the following steps: S1: buckle one end of the pipe to the outside of the ring, use a tool to rotate the abutment column, the abutment column rotates to push the central circular plate to the outside of the ring, so that the rotating rod drives the sliding rod to slide to the outside of the ring, and the end of the sliding rod located on the outside of the ring clamps the pipe to fix the pipe; S2: Adjust the height of the sliding column until the first telescopic spraying part is located above the pipe and the second telescopic spraying part is located inside the pipe, and then insert the pin between the limit hole and the circular groove for height positioning; S3: driving the stepper motor, the stepper motor drives the pipe to rotate; driving the electric telescopic rod to extend and retract, and at the same time, opening the first spray head, the second spray head and the spray supply part, the extension and retraction process of the electric telescopic rod realizes the simultaneous spraying treatment of the inner and outer wall surfaces of the pipe; When the electric telescopic rod is retracted, the second circular plate squeezes the first airbag, and the gas in the first airbag is input into the second airbag through the vent pipe. The second airbag is filled with gas, which drives the telescopic member to extend and the pull rod to be pulled, so that the length of the pull rod on one side of the second airbag is consistent with the extended length of the telescopic member, and the length of the pull rod on the one side of the first airbag is consistent with the length of the retracted electric telescopic rod; When the electric telescopic rod is extended, the second circular plate pulls open the first airbag, and the gas in the second airbag is input into the first airbag through the ventilation pipe, and the first airbag is filled with gas. At the same time, when the electric telescopic rod is extended, it drives the pull rod to be pulled, so that the length of the pull rod on one side of the first airbag is consistent with the extended length of the electric telescopic rod, and the pull rod on one side of the second airbag drives the telescopic part to retract. After tightening is completed, the pull rod on one side of the second airbag is consistent with the length of the retracted telescopic part.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is provided with a double-sided spraying assembly, which drives the first airbag and the second airbag to repeatedly deflate and inflate through the extension and retraction of the electric telescopic rod. When the first airbag is inflated, the second airbag is deflated, and the telescopic member contracts under the drive of the pull rod, and the second airbag contracts; when the first airbag is deflated, the second airbag is inflated, and the telescopic member drives the telescopic member to extend in the inflated state of the second airbag, and the first airbag contracts; in the process of alternating inflation and deflation of the airbags, the first spray head and the second spray head spray back and forth, thereby realizing the surface spraying treatment of the inner wall and the outer wall of the pipe at the same time, and cooperating with the gradual rotation of the pipe fixing assembly to ensure the uniform spraying of the pipe surface. At the same time, the increase of production processes and the waste of resources are avoided, thereby improving the overall production efficiency.

[0018] (2) The present invention is provided with a pipe fixing assembly that can clamp pipes of different diameters. At the same time, the cooperation between the fixing rod and the sliding rod can adjust the height of the first spray telescopic component and the second spray telescopic component to achieve the spraying distance coordination of pipes of different diameters, thereby realizing the surface treatment of pipes of different diameters by the device and increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of a pipe plasma spraying device of the present invention; Figure 2 It is a schematic diagram of the overall explosion structure of a pipe plasma spraying device of the present invention; Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 It is a schematic diagram of the exploded structure of a pipe fixing assembly of a pipe plasma spraying device of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of a pipe fixing assembly of a pipe plasma spraying device of the present invention; Figure 6 It is a schematic diagram of the telescopic member structure of a pipe plasma spraying device of the present invention; Figure 7 The present invention is a schematic diagram of a partial cross-sectional structure of a telescopic rod connection of a telescopic component of a pipe plasma spraying device.

[0020] In the figure: 100, fixed frame; 200, pipe fixing assembly; 300, support platform; 400, double-sided spray assembly; 110, stepping motor; 210, fixed plate; 220, rotating shaft; 230, abutment column; 240, ring; 250, pipe clamp; 241, through hole; 242, limit cylinder; 243, operation groove; 251, center circular plate; 252, rotating rod; 253, sliding rod; 310, support cylinder; 320, Y-type support frame; 330, spray supply unit; 340, hose; 311, limit hole; 312, latch; 321, strip convex 410, sliding column; 420, first connecting rod; 430, second connecting rod; 440, first telescopic spraying part; 450, second telescopic spraying part; 460, vent pipe; 470, connecting ring; 480, pull rod; 441, first circular plate; 442, electric telescopic rod; 443, second circular plate; 444, first airbag; 445, first spraying head; 451, third circular plate; 452, telescopic part; 453, fourth circular plate; 454, second airbag; 455, second spraying head; 4521, rod; 4522, limit ring; 4523, limit circle. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In addition, the embodiments of the present invention and the features in the embodiments may be combined with each other if there is no conflict. Example 1

[0022] like Figure 1 to Figure 7As shown, a pipe plasma spraying device includes a fixing frame 100, one side of the fixing frame 100 is rotatably connected to a pipe fixing assembly 200, a support platform 300 is provided on the side of the pipe fixing assembly 200 away from the fixing frame 100, a support cylinder 310 is vertically fixed on the support platform 300, and a double-sided spraying assembly 400 is connected to the support cylinder 310; The double-sided spray assembly 400 includes a sliding column 410, the lower end of which is slidably inserted and connected in the support tube 310, and the upper end of the sliding column 410 is fixed with a first connecting rod 420 and a second connecting rod 430; the first connecting rod 420 and the second connecting rod 430 are arranged at intervals along the sliding column 410; a first telescopic spray component 440 is fixed on the first connecting rod 420, and a second telescopic spray component 450 is connected to the second connecting rod 430; the first telescopic spray component 440 and the second telescopic spray component 450 are linked.

[0023] The fixing frame 100 is used to install the pipe fixing assembly 200, and the pipe fixing assembly 200 is used to fix the pipe and rotate the pipe to facilitate the double-sided spraying assembly 400 to perform surface treatment; the supporting platform 300 is used to support the double-sided spraying assembly 400, and the supporting double-sided spraying assembly 400 is used to perform surface spraying treatment on the pipe; The support tube 310 vertically supports the sliding column 410. The first connecting rod 420 arranged on the sliding column 410 is used to fix the first telescopic spray component 440. The second connecting rod 430 is used to fix the second telescopic spray component 450. Through the linkage setting between the first telescopic spray component 440 and the second telescopic spray component 450, the inner and outer side walls of the pipe can be surface treated simultaneously.

[0024] In this embodiment, the first telescopic spraying component 440 includes a first circular plate 441 and a second circular plate 443 which are arranged in parallel on the left and right sides. The first circular plate 441 is fixed on the first connecting rod 420. An electric telescopic rod 442 is connected between the first circular plate 441 and the second circular plate 443. A first airbag 444 is also sealed and fixedly connected between the first circular plate 441 and the second circular plate 443. The electric telescopic rod 442 is located inside the first airbag 444. A first spraying head 445 is fixed on the side of the second circular plate 443 away from the first circular plate 441. The second telescopic spraying component 450 includes a third circular plate 451 and a fourth circular plate 453 which are arranged in parallel on the left and right sides, wherein the third circular plate 451 is fixed on the second connecting rod 430; a telescopic member 452 is connected between the third circular plate 451 and the fourth circular plate 453, and a second airbag 454 is also sealed and fixedly connected between the third circular plate 451 and the fourth circular plate 453, wherein the telescopic member 452 is located inside the second airbag 454; a second spraying head 455 is fixed on a side of the fourth circular plate 453 away from the third circular plate 451; A ventilation pipe 460 is connected between the first circular plate 441 and the third circular plate 451, one end of the ventilation pipe 460 is connected to the first airbag 444, and the other end of the ventilation pipe 460 is connected to the second airbag 454; connecting rings 470 are fixed on the outer edges of the opposite sides of the first circular plate 441 and the third circular plate 451, and a pull rod 480 is passed between the two connecting rings 470; the end of the pull rod 480 located on the side of the first circular plate 441 is fixedly connected to the second circular plate 443, and the end of the pull rod 480 located on the side of the third circular plate 451 is fixedly connected to the fourth circular plate 453.

[0025] During the surface spraying treatment, when the electric telescopic rod 442 is contracted, it drives the second circular plate 443 to squeeze the first airbag 444. At this time, the first spray head 445 sprays from one end of the pipe fixing assembly 200 to the other end; when the gas in the first airbag 444 is squeezed, it flows into the second airbag 454 through the vent pipe 460, and the second airbag 454 is inflated. When inflated, the second airbag 454 drives the fourth circular plate 453 to approach one end of the pipe fixing assembly 200, and the telescopic member 452 and the pull rod 480 are pulled by the fourth circular plate 453, and the telescopic member 452 is extended, so that the second spray head 455 fixed on the fourth circular plate 453 sprays toward one end of the pipe fixing assembly 200; When the electric telescopic rod 442 is extended, it drives the second circular plate 443 to approach the side of the pipe fixing assembly 200, the first airbag 444 is pulled open, and the gas flows from the second airbag 454 to the first airbag 444. At the same time, when the second circular plate 443 approaches the side of the pipe fixing assembly 200, the pull rod 480 is pulled, driving the telescopic member 452 to contract, and cooperatively squeezes the gas in the second airbag 454 into the first airbag 444. At this time, the first spray head 445 and the second spray head 455 realize spraying in the opposite direction to the direction when the electric telescopic rod 442 is contracted. Therefore, the extension and contraction of the electric telescopic rod 442 realizes the simultaneous spraying of the inner and outer surfaces of the pipe, reduces the spraying process, and has a simple structure, which improves the spraying efficiency.

[0026] It should be noted that in order to ensure uniform surface treatment, the spray head outlet curvature, spray head size and spraying amount of the first spray head 445 and the second spray head 455 can be selected according to actual conditions, and the rotation speed and rotation angle of the stepper motor 110 can also be adjusted according to specific conditions, which will not be elaborated here.

[0027] Furthermore, when the device only needs to perform inner wall surface treatment or outer wall surface treatment, it can be achieved by closing the spray head that does not need to spray, thereby realizing the spraying requirements of different surfaces and having a wider range of uses.

[0028] In this embodiment, the pipe fixing assembly 200 includes a fixing disk 210, and a rotating shaft 220 is provided on one side of the fixing disk 210, and the rotating shaft 220 is rotatably connected to the fixing frame 100; a stepper motor 110 is fixed to the fixing frame 100, and the output shaft of the stepper motor 110 is fixedly connected to the rotating shaft 220; a threaded hole is opened in the middle of the other side of the fixing disk 210, and an abutment column 230 is screwed on the threaded hole; a circular ring 240 is coaxially fixed on the other side of the fixing disk 210, and a pipe clamping piece 250 is installed on the circular ring 240, and the end of the abutment column 230 located outside the threaded hole abuts against the pipe clamping piece 250.

[0029] In this embodiment, the pipe clamping member 250 includes a central circular plate 251, and a plurality of rotating rods 252 are evenly distributed and rotatably connected to the outer circumference of the central circular plate 251, and a sliding rod 253 is rotatably connected to the end of the rotating rod 252 away from the central circular plate 251; a plurality of through holes 241 corresponding to the sliding rod 253 are opened on the circular ring 240, and a plurality of limiting cylinders 242 are fixed to the inner side wall of the circular ring 240, and the positions of the limiting cylinders 242 and the through holes 241 correspond one by one; the plurality of sliding rods 253 are all inserted into the corresponding limiting cylinders 242 and the ends extend out of the through holes 241; the central circular plate 251 and the sliding rod 253 are arranged in parallel on the left and right, and the central circular plate 251 is located on the left side of the sliding rod 253, and the angle between the sliding rod 253 and the rotating rod 252 is β, and β is less than 180°.

[0030] When fixing the pipe, one end of the pipe is sleeved on the outside of the ring 240. The pipe is fixed by twisting the abutment column 230, and the abutment column 230 rotates and extends outward from the fixed disk 210. When extending, the abutment column 230 pushes the center circular plate 251 to the outside of the ring 240. At this time, the rotating rod 252 rotatably connected to the center circular plate 251 presses the sliding rod 253 to the outside of the ring 240 through the outward movement of the center circular plate 251, so that the sliding rod 253 extends outward from the ring 240, clamping one end of the inner wall of the pipe in all directions to achieve clamping and fixing. The pipe fixing assembly 200 can be used to fix pipes of different diameters and realize the surface treatment function of pipes of different diameters.

[0031] In this embodiment, an operating groove 243 is formed on the ring 240 between the two limiting cylinders 242 . The operating groove 243 is arranged on a side close to the fixed disk 210 , and the limiting cylinder 242 is arranged on a side away from the fixed disk 210 .

[0032] The operating groove 243 facilitates the use of a tool to twist the abutment column 230 . The tool may be a wrench. It should be noted that after one end of the pipe is buckled onto the outside of the ring 240 , it will not interfere with the tool extending into the operating groove 243 to twist the abutment column 230 .

[0033] In this embodiment, a plurality of limiting holes 311 are axially opened on the support tube 310 , a plurality of circular grooves corresponding to the limiting holes 311 are opened on the lower end of the sliding column 410 , and the limiting holes 311 and the circular grooves are limitedly connected by a latch 312 .

[0034] The setting of the limiting hole 311 and the circular groove facilitates the insertion of the latch 312, realizes the function of adjusting the height of the first telescopic spraying component 440 and the second telescopic spraying component 450, and adapts to the spraying of pipes of different diameters.

[0035] In this embodiment, a Y-shaped support frame 320 is detachably mounted on the support platform 300 , and a strip-shaped protrusion 321 is provided in the top groove of the Y-shaped support frame 320 .

[0036] When spraying heavier pipes, the unfixed end of the pipe can be supported by the Y-shaped support frame 320, and the strip-shaped protrusions 321 can reduce the contact area with the pipe and reduce the damage to the surface coating.

[0037] In this embodiment, a spray supply unit 330 is further installed on the support platform 300 , and the first spray head 445 and the second spray head 455 are connected to the spray supply unit 330 through supply hoses 340 , respectively.

[0038] The spray supply unit 330 provides materials for surface spraying. It should be noted that when the first spray head 445 and the second spray head 455 spray back and forth, the hose 340 can avoid surface contact with the pipe through conventional fixing treatment.

[0039] In this embodiment, the telescopic member 452 includes a plurality of rod members 4521 which are continuously sleeved in sequence. One end of the rod member 4521 at the rightmost end of the telescopic member 452 is fixedly connected to the third circular plate 451, and one end of the rod member 4521 at the leftmost end of the telescopic member 452 is fixedly connected to the fourth circular plate 453; a limiting ring 4522 is provided at the left end of the rod member 4521, and a limiting ring 4523 is provided at the right end of the rod member 4521.

[0040] The limiting ring 4522 and the limiting circle 4523 are used to limit the adjacent interconnected rods 4521. At the same time, the multiple sections of the rods 4521 that are continuously sleeved in sequence are slidably connected. Under the action of external force, they can slide freely to realize the back and forth spraying function of the second spray head 455. Example 2

[0041] A method for using a pipe plasma spraying device comprises the following steps: S1: buckle one end of the pipe to the outside of the ring 240, use a tool to rotate the abutment column 230, the abutment column 230 rotates to push the central circular plate 251 to the outside of the ring 240, so that the rotating rod 252 drives the sliding rod 253 to slide to the outside of the ring 240, and the end of the sliding rod 253 located outside the ring 240 clamps the pipe to fix the pipe; S2: Adjust the height of the sliding column 410 until the first telescopic spraying component 440 is located above the pipe and the second telescopic spraying component 450 is located inside the pipe, and then insert the latch 312 between the limiting hole 311 and the circular groove for height positioning; S3: driving the stepper motor 110, the stepper motor 110 drives the pipe to rotate; driving the electric telescopic rod 442 to extend and retract, and at the same time, opening the first spray head 445, the second spray head 455 and the spray supply part 330, the extension and retraction process of the electric telescopic rod 442 realizes the simultaneous spraying treatment of the inner and outer wall surfaces of the pipe; When the electric telescopic rod 442 is retracted, the second circular plate 443 squeezes the first airbag 444, and the gas in the first airbag 444 is input into the second airbag 454 through the vent pipe 460. The second airbag 454 is filled with gas, which drives the telescopic member 452 to extend, and at the same time drives the pull rod 480 to pull, so that the length of the pull rod 480 on one side of the second airbag 454 is consistent with the extended length of the telescopic member 452, and the length of the pull rod 480 on one side of the first airbag 444 is consistent with the length of the retracted electric telescopic rod 442; When the electric telescopic rod 442 is extended, the second circular plate 443 pulls open the first airbag 444, and the gas in the second airbag 454 is input into the first airbag 444 through the ventilation pipe 460, and the first airbag 444 is filled with gas. At the same time, when the electric telescopic rod 442 is extended, it drives the pull strip 480 to be pulled, so that the length of the pull strip 480 on one side of the first airbag 444 is consistent with the extended length of the electric telescopic rod 442, and the pull strip 480 on one side of the second airbag 454 drives the telescopic part 452 to be retracted. After tightening is completed, the pull strip 480 on one side of the second airbag 454 is consistent with the length of the retracted telescopic part 452.

[0042] Although the present invention has been disclosed as above by embodiments, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A pipe plasma spraying device, comprising a fixing frame (100), characterized in that: A pipe fixing assembly (200) is rotatably connected to one side of the fixing frame (100); a support platform (300) is provided on a side of the pipe fixing assembly (200) away from the fixing frame (100); a support cylinder (310) is vertically fixed on the support platform (300); and a double-sided spraying assembly (400) is connected to the support cylinder (310); The double-sided spraying assembly (400) comprises a sliding column (410), the lower end of which is slidably inserted and connected in a supporting tube (310), and the upper end of which is fixed with a first connecting rod (420) and a second connecting rod (430); the first connecting rod (420) and the second connecting rod (430) are arranged at intervals in the upper and lower parts along the sliding column (410); a first telescopic spraying component (440) is fixed on the first connecting rod (420), and a second telescopic spraying component (450) is connected to the second connecting rod (430); and the first telescopic spraying component (440) and the second telescopic spraying component (450) are arranged in linkage.

2. The pipe plasma spraying equipment according to claim 1, characterized in that: The first telescopic spraying component (440) comprises a first circular plate (441) and a second circular plate (443) which are arranged in parallel on the left and right sides, the first circular plate (441) being fixed on the first connecting rod (420); an electric telescopic rod (442) being connected between the first circular plate (441) and the second circular plate (443); a first airbag (444) being sealed and fixedly connected between the first circular plate (441) and the second circular plate (443), the electric telescopic rod (442) being located inside the first airbag (444); a first spraying head (445) being fixed on a side of the second circular plate (443) away from the first circular plate (441); The second telescopic spraying component (450) comprises a third circular plate (451) and a fourth circular plate (453) which are arranged parallel to each other, the third circular plate (451) being fixed on the second connecting rod (430); a telescopic member (452) is connected between the third circular plate (451) and the fourth circular plate (453); a second airbag (454) is also sealed and fixedly connected between the third circular plate (451) and the fourth circular plate (453), the telescopic member (452) being located inside the second airbag (454); a second spraying head (455) is fixed on a side of the fourth circular plate (453) away from the third circular plate (451); A ventilation pipe (460) is connected between the first circular plate (441) and the third circular plate (451), one end of the ventilation pipe (460) is in communication with the first airbag (444), and the other end of the ventilation pipe (460) is in communication with the second airbag (454); a connecting ring (470) is fixed on the outer edge of the first circular plate (441) and the third circular plate (451) on the opposite side, and a pull rod (480) is passed between the two connecting rings (470); the end of the pull rod (480) located on the side of the first circular plate (441) is fixedly connected to the second circular plate (443), and the end of the pull rod (480) located on the side of the third circular plate (451) is fixedly connected to the fourth circular plate (453).

3. The pipe plasma spraying equipment according to claim 1, characterized in that: The pipe fixing assembly (200) comprises a fixing plate (210), one side of which is provided with a rotating shaft (220), and the rotating shaft (220) is rotatably connected to the fixing frame (100); a stepper motor (110) is fixed to the fixing frame (100), and the output shaft of the stepper motor (110) is fixedly connected to the rotating shaft (220); a threaded hole is provided in the middle of the other side of the fixing plate (210), and an abutment column (230) is screwed onto the threaded hole; a circular ring (240) is coaxially fixed to the other side of the fixing plate (210), and a pipe clamping piece (250) is mounted on the circular ring (240), and one end of the abutment column (230) located outside the threaded hole abuts against the pipe clamping piece (250).

4. The pipe plasma spraying equipment according to claim 3, characterized in that: The pipe clamp (250) comprises a central circular plate (251), a plurality of rotating rods (252) are evenly distributed on the outer circumference of the central circular plate (251) and are rotatably connected thereto, and one end of the rotating rod (252) away from the central circular plate (251) is rotatably connected to a sliding rod (253); a plurality of through holes (241) corresponding to the sliding rods (253) are formed on the circular ring (240), and a plurality of limiting cylinders (242) are fixed to the inner side wall of the circular ring (240). The positions of the limiting cylinder (242) and the through hole (241) correspond one to one; the plurality of sliding rods (253) are all inserted into the corresponding limiting cylinder (242) and the ends extend out of the through hole (241); the central circular plate (251) and the sliding rod (253) are arranged in parallel to each other, and the central circular plate (251) is located on the left side of the sliding rod (253); the angle between the sliding rod (253) and the rotating rod (252) is β, and β is less than 180°.

5. The pipe plasma spraying equipment according to claim 4, characterized in that: An operating groove (243) is provided on the circular ring (240) located between the two limiting cylinders (242); the operating groove (243) is arranged on a side close to the fixed disk (210), and the limiting cylinder (242) is arranged on a side away from the fixed disk (210).

6. The pipe plasma spraying equipment according to claim 1, characterized in that: The support tube (310) is axially provided with a plurality of limiting holes (311), the lower end of the sliding column (410) is provided with a plurality of circular grooves corresponding to the limiting holes (311), and the limiting holes (311) and the circular grooves are connected in a limiting manner via a latch (312).

7. The pipe plasma spraying equipment according to claim 2, characterized in that: A Y-shaped support frame (320) is detachably mounted on the support platform (300), and a strip-shaped protrusion (321) is provided in a top groove of the Y-shaped support frame (320).

8. The pipe plasma spraying equipment according to claim 2, characterized in that: A spray supply unit (330) is also installed on the support platform (300), and the first spray head (445) and the second spray head (455) are respectively connected to the spray supply unit (330) via supply hoses (340).

9. The pipe plasma spraying equipment according to claim 2, characterized in that: The telescopic member (452) comprises a plurality of rods (4521) which are continuously sleeved in sequence; one end of the rod (4521) at the rightmost end of the telescopic member (452) is fixedly connected to the third circular plate (451); one end of the rod (4521) at the leftmost end of the telescopic member (452) is fixedly connected to the fourth circular plate (453); a limiting ring (4522) is provided at the left end of each rod (4521), and a limiting ring (4523) is provided at the right end of each rod (4521).

10. A method for using the pipe plasma spraying equipment according to any one of claims 1 to 9, characterized in that: The steps include: S1: buckle one end of the pipe to the outside of the circular ring (240), use a tool to rotate the abutment column (230) through the operating groove (243), and the abutment column (230) rotates to push the central circular plate (251) toward the outside of the circular ring (240), so that the rotating rod (252) drives the sliding rod (253) to slide toward the outside of the circular ring (240), and the end of the sliding rod (253) located outside the circular ring (240) clamps the pipe, thereby fixing the pipe; S2: adjusting the height of the sliding column (410) until the first telescopic spraying component (440) is located above the pipe and the second telescopic spraying component (450) is located inside the pipe, and then inserting the latch (312) between the limiting hole (311) and the circular groove for height positioning; S3: driving the stepper motor (110), the stepper motor (110) drives the pipe to rotate; driving the electric telescopic rod (442) to extend and retract, and at the same time, opening the first spray head (445), the second spray head (455) and the spray supply unit (330), the extension and retraction process of the electric telescopic rod (442) enables simultaneous spraying of the inner and outer wall surfaces of the pipe; When the electric telescopic rod (442) is retracted, the second circular plate (443) squeezes the first airbag (444), and the gas in the first airbag (444) is input into the second airbag (454) through the vent pipe (460). The second airbag (454) is filled with gas, which drives the telescopic member (452) to extend, and at the same time drives the pull bar (480) to be pulled, so that the length of the pull bar (480) on one side of the second airbag (454) is consistent with the extended length of the telescopic member (452), and the pull bar (480) on one side of the first airbag (444) is consistent with the length of the retracted electric telescopic rod (442); When the electric telescopic rod (442) is extended, the second circular plate (443) opens the first airbag (444), and the gas in the second airbag (454) is input into the first airbag (444) through the ventilation pipe (460), and the first airbag (444) is filled with gas. At the same time, when the electric telescopic rod (442) is extended, the pull strip (480) is pulled, so that the length of the pull strip (480) on one side of the first airbag (444) is consistent with the extended length of the electric telescopic rod (442), and the pull strip (480) on one side of the second airbag (454) drives the telescopic member (452) to be retracted. After the tightening is completed, the pull strip (480) on one side of the second airbag (454) is consistent with the length of the retracted telescopic member (452).

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