A copper-aluminum composite plate low-temperature ceramic spraying method and device

Abstract

The application provides a copper-aluminum composite plate low-temperature ceramic spraying method and device, and relates to the field of metal plate processing. The copper-aluminum composite plate low-temperature ceramic spraying device is used for processing a semicircular composite plate body and comprises a base. A shell cover is arranged on the top of the base. A workbench is arranged in the shell cover. The bottom of the workbench is fixedly installed with the top of the base. A through groove is symmetrically arranged on the left and right sides of the workbench. The workbench is arranged on the base. The workbench is provided with a through groove. A polishing mechanism is arranged in the through groove. A connecting rod is pivotally connected to the front and rear ends of the workbench. The connecting rod is connected with the polishing mechanism. The polishing mechanism comprises a sliding rod, a rotating ring and an elastic bag. The elastic bag drives the rotating ring to move back and forth along the sliding rod. The polishing mechanism is manually turned over to make circular motion, thereby polishing the metal composite plate. The shell cover is arranged to cover the workbench. Cold air is supplied into the shell cover, thereby achieving the effect of low-temperature spraying and accelerating the solidification of ceramic spraying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal plate processing, in particular to a low-temperature ceramic spraying method and equipment for copper-aluminum composite plate. BACKGROUND

[0002] Copper and aluminum are important non-ferrous metals. Copper has good electrical conductivity, thermal conductivity, corrosion resistance and bacteria resistance. Aluminum has good electrical conductivity and thermal conductivity. Copper-aluminum composite metal plate is a bimetal with aluminum as the base and copper as the outer layer. It is a new type of conductor material and decorative material that combines the high-quality electrical conductivity of aluminum, low-cost resources, high chemical stability of copper, and low contact resistance.

[0003] Electric vacuum ceramic tubes are widely used in current power electronic industry production. Some ceramic tubes on the market have core materials composed of the above-mentioned composite plate.

[0004] In order to realize the welding between ceramic and metal, a layer of ceramic film is sprayed on the connecting surface of the composite plate. The traditional spraying method is too simple, which only needs to spray paint on the composite plate with a spray gun. However, there is an oxide layer on the surface of the copper-aluminum composite plate, which will affect the adhesion of the paint.

[0005] The transmission processing method is to polish the surface of the metal plate clean and then spray paint. If the interval between the two steps is long, the metal will be in contact with the air again, which will generate a new oxide layer. Therefore, a new device is set up to remove the surface oxide layer and immediately perform ceramic spraying to avoid the re-generation of the oxide layer on the metal surface. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the deficiencies of the prior art, the present application provides a low-temperature ceramic spraying method and equipment for copper-aluminum composite plate, which solves the problems raised in the background art.

[0008] (II) Technical solutions

[0009] To achieve the above purpose, the present application realizes the following technical solutions: a low-temperature ceramic spraying equipment for copper-aluminum composite plate for processing a semicircular composite plate body, which comprises a base, a shell cover is arranged on the top of the base, a workbench is arranged in the shell cover, the workbench is fixedly installed with the base, two through grooves are symmetrically arranged on the left and right sides of the workbench, the composite plate body is placed on the workbench and located between the two through grooves, a polishing mechanism is arranged in one of the through grooves, a rotating shaft is connected to the front and rear ends of the workbench, and a connecting rod is pivoted to the rotating shaft.

[0010] A motor is connected between the front connecting rod and the polishing mechanism, a handle is arranged on the front surface of the front connecting rod, a paint pipe is connected to the rear connecting rod, and the paint pipe is communicated with the polishing mechanism.

[0011] The polishing mechanism comprises a sliding rod, a rotating ring, two elastic stretchable bags, the front end of the sliding rod is connected with the transmission shaft of the motor, the rear end of the sliding rod is pivotally connected with the rear link, an inlet channel is formed along the length direction at the internal axis of the sliding rod, one end of the paint pipe extends into the inlet channel, the other end of the paint pipe extends to the outside of the shell cover and is connected with a paint conveying device.

[0012] A sliding groove is formed along the length direction on the surface of the sliding rod, the rotating ring is slidably connected with the sliding rod through the sliding groove, when the motor drives the sliding rod to rotate, the rotating ring rotates with the sliding rod, the elastic stretchable bags are sleeved on the sliding rod, and the two elastic stretchable bags are respectively located on the front and rear sides of the rotating ring, and the end of the elastic stretchable bag away from the rotating ring is fixedly connected with the end of the sliding rod.

[0013] A protrusion is symmetrically welded at the center of the rotating ring, the protrusion is slidably connected with the sliding groove, a groove one is symmetrically formed on the surface of the rotating ring, an electric push rod one is arranged in the groove one, the electric push rod one is connected with the inner wall of the protrusion, and a polishing piece is fixedly arranged on the outward end of the electric push rod one.

[0014] A groove two is symmetrically formed on the surface of the rotating ring, the groove two is located between two adjacent groove ones, a piston plate is slidably arranged in the groove two, a plurality of material conveying pipes are symmetrically connected with the inner side of the piston plate, a connecting channel corresponding to the groove two is formed in the rotating ring, one end of the material conveying pipe extends to the outside of the piston plate, the other end of the material conveying pipe is connected with the connecting channel, an electric push rod two is arranged in the groove two, and the movable end of the electric push rod two is hingedly connected with the piston plate.

[0015] The elastic stretchable bag is connected with an elastic hose close to the rotating ring, and the elastic hose is used for butt joint with the connecting channel.

[0016] The shell cover is provided with a window hole on the front surface, a glove is fixedly arranged in the window hole, and a cold air pipe is welded and communicated with the top of the shell cover.

[0017] The top of the base is further provided with a control panel for controlling the operation of the electronic components.

[0018] Preferably, the sliding rod is symmetrically provided with a micro electronic valve one at two ends, one end of the micro electronic valve one is communicated with the inlet channel, the other end of the micro electronic valve one is communicated with the inside of the elastic stretchable bag, the rotating ring is provided with a micro electronic valve two corresponding to the connecting channel at the front and rear ends, one end of the micro electronic valve two is butt jointed with the elastic hose, and the other end of the micro electronic valve two is butt jointed with the connecting channel.

[0019] Preferably, the top of the workbench is provided with a slot, the workbench is fixedly inserted with a support through the slot, the support is used for supporting the end part of the composite board body, a plurality of support rods are welded on the top of the support, a horizontal part is connected with the side edge of the support rod, a clamping corner is formed between the support rod and the horizontal part, and the edge of the composite board body is overlapped on the clamping corner.

[0020] Preferably, the elastic expansion bag surface is corrugated.

[0021] Preferably, the inner wall of the groove is provided with a plurality of branches towards the side of the connecting channel, one end of the branch is communicated with the connecting channel, and the end of the material conveying pipe away from the piston plate is inserted into the branch, and the material conveying pipe is always inserted into the branch.

[0022] Preferably, a layer of brush is arranged on the outer surface of the piston plate.

[0023] A use method of a copper-aluminum composite plate low-temperature ceramic spraying equipment:

[0024] Step one, place the composite plate body on the workbench, place the shell cover on the base, cover the shell cover on the workbench, slowly convey cold air into the shell cover, and put both hands into the gloves to polish.

[0025] Step two, start the motor, the motor drives the sliding rod to rotate, the sliding rod drives the rotating ring to rotate, then control the first electric push rod to extend, the polishing piece extends to the outer groove of the composite plate body surface and contacts, and the polishing piece scrapes off the oxidation layer on the surface of the composite plate body.

[0026] Step three, then control the first electric push rod to retract, control the second electric push rod to extend, so that the piston plate is close to the polishing place of the composite plate body, open the rear micro electronic valve one, close the rear micro electronic valve two, pour the paint into the elastic expansion bag on the rear side of the rotating ring, the elastic expansion bag on the rear side of the rotating ring expands and bulges, and pushes the rotating ring to move from rear to front.

[0027] Step four, then close the rear micro electronic valve one, open the rear micro electronic valve two, open the front micro electronic valve one, and close the front micro electronic valve two, pour the paint into the elastic expansion bag on the front side of the rotating ring, so that the front rotating ring moves from front to back, at this time, the paint in the rear elastic expansion bag is squeezed into the connecting channel, due to the squeezing and rotation of the motor, the paint is sprayed on the composite plate body, and the area scraped off the oxidation layer is low-temperature ceramic sprayed.

[0028] Step five, when the oxidation layer of the same transverse area of the composite plate body is scraped off and sprayed, hold the handle with the hand and slowly rotate to change the angle of the whole polishing mechanism, and then repeat the operations of steps two, three and four, until all areas of the surface of the composite plate body are coated with ceramic paint, the cold air conveyed into the shell cover reduces the temperature of the composite plate body, and accelerates the solidification of the ceramic paint.

[0029] (Three) beneficial effects

[0030] The application provides a copper-aluminum composite plate low-temperature ceramic spraying equipment.

[0031] 1. The copper-aluminum composite plate low-temperature ceramic spraying equipment is characterized in that a workbench is arranged on the base, the workbench is provided with a through slot, a polishing mechanism is arranged in the through slot, a connecting rod is pivotally connected to the front and rear ends of the workbench, and the connecting rod is connected with the polishing mechanism. The polishing mechanism is composed of a sliding rod, a rotating ring and an elastic expansion bag, and the elastic expansion bag drives the rotating ring to move back and forth along the sliding rod. The polishing mechanism is manually turned over to make circumferential movement, thereby achieving polishing of the metal composite plate. A shell cover is arranged, the shell cover covers the workbench, and cold air is supplied into the shell cover, thereby achieving the effect of low-temperature spraying and accelerating the solidification of ceramic spraying.

[0032] 2. The copper-aluminum composite plate low-temperature ceramic spraying equipment is characterized in that the surface of the rotating ring is provided with a groove one and a groove two, a polishing piece is arranged in the groove one, and a piston plate is arranged in the groove two. The paint enters the sliding rod and is sprayed out from the piston plate, so that the rotating ring has the functions of polishing and painting, and the metal composite plate can be immediately sprayed with ceramic paint after the oxide layer is removed. The metal composite plate is prevented from re-oxidizing before being sprayed with ceramic paint. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a perspective view of the structure of the present application;

[0034] Figure 2 It is a shell cover structure diagram of the present application;

[0035] Figure 3 It is a perspective view of the workbench structure of the present application;

[0036] Figure 4 It is a workbench structure diagram of the present application;

[0037] Figure 5 It is an explosion view of the local structure of the present application;

[0038] Figure 6 It is a support structure diagram of the present application;

[0039] Figure 7 It is a cross-sectional view of the rotating ring structure of the present application;

[0040] Figure 8 It is another angle cross-sectional view of the rotating ring structure of the present application.

[0041] In the figure: 1 base, 2 shell cover, 21 window, 22 glove, 23 cold air pipe, 3 workbench, 31 through slot, 32 insertion slot, 33 rotating shaft, 34 connecting rod, 35 handle, 36 motor, 37 paint pipe, 4 support, 41 support rod, 42 transverse part, 5 sliding rod, 51 feeding channel, 52 sliding groove, 53 micro electronic valve one, 6 rotating ring, 61 protrusion, 62 groove one, 621 electric push rod one, 622 polishing piece, 63 groove two, 64 connecting channel, 65 micro electronic valve two, 66 branch, 67 electric push rod two, 68 piston plate, 681 feeding pipe, 682 brush, 7 elastic expansion bag, 8 composite plate body. DETAILED DESCRIPTION

[0042] The embodiment of the present application provides a low-temperature ceramic spraying equipment for copper-aluminum composite plate, as shown in the drawings, a semicircular composite plate body 8 is processed. Figures 1-8 The bottom seat 1 is provided with a shell cover 2 fixedly installed on the top of the bottom seat 1, and a workbench 3 is arranged in the shell cover 2. The workbench 3 is fixedly installed with the bottom seat 1 at the top. The workbench 3 is symmetrically provided with a through slot 31 on the left and right sides. The composite plate body 8 is placed on the workbench 3, and the composite plate body 8 is located between the two through slots 31.

[0043] One of the through slots 31 is provided with a polishing mechanism. The workbench 3 is welded with a rotating shaft 33 at the central position of the front and rear ends. The rotating shaft 33 is pivotally connected with a connecting rod 34.

[0044] The front side connecting rod 34 is fixedly installed with a motor 36 between the polishing mechanism. The front side connecting rod 34 is welded with a handle 35 on the front side. The rear side connecting rod 34 is fixedly installed with a coating pipe 37. The coating pipe 37 is communicated with the polishing mechanism.

[0045] The polishing mechanism comprises a sliding rod 5, a rotating ring 6 and two elastic expansion bags 7. The sliding rod 5 is fixedly installed with the transmission shaft of the motor 36 at the front end. The rear end of the sliding rod 5 is pivotally connected with the rear side connecting rod 34, so that the sliding rod 5 can rotate around the shaft.

[0046] A feeding channel 51 is formed in the sliding rod 5 along the length direction at the inner axis. The rear end of the feeding channel 51 is open to facilitate the butt joint with the coating pipe 37.

[0047] One end of the coating pipe 37 extends into the feeding channel 51, and the other end of the coating pipe 37 extends to the outside of the shell cover 2 and is butt jointed and communicated with a coating conveying device. The coating conveying device is a conventional technical means, and therefore will not be described in detail.

[0048] A sliding groove 52 is formed in the surface of the sliding rod 5 along the length direction. The rotating ring 6 is slidably connected with the sliding rod 5 through the sliding groove 52. When the motor 36 drives the sliding rod 5 to rotate, the rotating ring 6 rotates with the sliding rod 5. The elastic expansion bags 7 are sleeved on the rod body of the sliding rod 5, and the two elastic expansion bags 7 are located on the front and rear sides of the rotating ring 6 respectively. The end of the elastic expansion bag 7 away from the rotating ring 6 is fixedly bonded with the end of the sliding rod 5.

[0049] The rotating ring 6 is welded with a protrusion 61 at the center at equal angles. The protrusion 61 is slidably connected with the sliding groove 52. A recess one 62 is formed in the surface of the rotating ring 6 at equal angles. An electric push rod one 621 is fixedly installed in the recess one 62. The electric push rod one 621 is fixedly connected with the inner wall of the protrusion 61. A polishing piece 622 is fixedly installed on the outward end of the electric push rod one 621.

[0050] The surface of the rotating ring 6 is provided with a groove two 63 at an equal angle, the groove two 63 is located between two adjacent grooves one 62, the piston plate 68 is slidably connected in the groove two 63, a plurality of material conveying pipes 681 are welded and communicated at equal distances on the inner side of the piston plate 68, and a connecting channel 64 corresponding to the groove two 63 is formed in the rotating ring 6.

[0051] One end of the material conveying pipe 681 extends to the outside of the piston plate 68, the other end of the material conveying pipe 681 is communicated with the connecting channel 64, the electric push rod two 67 is fixedly installed in the groove two 63, and the movable end of the electric push rod two 67 is hingedly connected with the piston plate 68.

[0052] The elastic flexible bag 7 is connected with an elastic hose near one side of the rotating ring 6, and the elastic flexible bag 7 is integrally made with the elastic hose. The elastic hose is used for butt joint with the connecting channel 64.

[0053] The shell cover 2 is provided with a window hole 21 on the front surface, the glove 22 is fixedly installed at the window hole 21, and the cold air pipe 23 is welded and communicated at the top of the shell cover 2. The cold air is sent into the shell cover 2, so that low-temperature ceramic spraying is realized.

[0054] The base 1 is further provided with a control panel for controlling the work of various electronic parts. The control panel remotely controls the work of the electronic parts through wireless transmission technology. Since it is a conventional technology, the specific structure, connection mode and the like are not described in detail, and are not shown in the drawings.

[0055] The micro electronic valve one 53 is symmetrically fixedly installed at both ends of the sliding rod 5, as shown in the accompanying drawings. Figure 7 One end of the micro electronic valve one 53 is communicated with the feeding channel 51, and the other end of the micro electronic valve one 53 is communicated with the inside of the elastic flexible bag 7.

[0056] The micro electronic valve two 65 corresponding to the connecting channel 64 is arranged at the front and rear ends of the rotating ring 6, one end of the micro electronic valve two 65 is butt-joint communicated with the elastic hose, and the other end of the micro electronic valve two 65 is butt-joint communicated with the connecting channel 64.

[0057] The workbench 3 is provided with a slot 32 at the top, the support 4 is fixedly inserted into the workbench 3 through the slot 32, the support 4 is used for supporting the end of the composite plate body 8, a plurality of support rods 41 are welded at the top of the support 4, a horizontal part 42 is welded at the side edge of the support rod 41, a clamping corner is formed between the support rod 41 and the horizontal part 42, and the edge of the composite plate body 8 is overlapped at the clamping corner.

[0058] The surface of the elastic flexible bag 7 is wrinkle-shaped.

[0059] A plurality of branches 66 are formed on the inner wall of the groove two 63, one end of the branch 66 is communicated with the connecting channel 64, and the other end of the material conveying pipe 681 is inserted into the branch 66. The electric push rod two 67 pushes the piston plate 68 to move, and the material conveying pipe 681 is always inserted into the branch 66.

[0060] A layer of brush 682 is fixedly installed on the outer side surface of the piston plate 68.

[0061] A method for using a copper-aluminum composite plate low-temperature ceramic spraying device:

[0062] Step one, place the composite plate body 8 on the workbench 3, place the shell cover 2 on the base 1, cover the shell cover 2 on the workbench 3, slowly deliver cold air into the shell cover 2, and put both hands into the gloves 22 to polish.

[0063] Step two, start the motor 36, the motor 36 drives the sliding rod 5 to rotate, the sliding rod 5 drives the rotating ring 6 to rotate, then control the electric push rod one 621 to extend, the polishing piece 622 extends to the outside of the groove one 62 and contacts the surface of the composite plate body 8, and the polishing piece 622 scrapes off the oxidation layer on the surface of the composite plate body 8.

[0064] Step three, then control the electric push rod one 621 to retract, control the electric push rod two 67 to extend, so that the piston plate 68 approaches the polishing place of the composite plate body 8, open the rear micro electronic valve one 53, close the rear micro electronic valve two 65, pour the paint into the elastic expansion bag 7 at the rear of the rotating ring 6, the elastic expansion bag 7 at the rear of the rotating ring 6 expands and bulges, and pushes the rotating ring 6 to move from rear to front.

[0065] Step four, then close the rear micro electronic valve one 53, open the rear micro electronic valve two 65, open the front micro electronic valve one 53, and close the front micro electronic valve two 65, pour the paint into the elastic expansion bag 7 at the front of the rotating ring 6, so that the front rotating ring 6 moves from front to back, at this time, due to the extrusion of the rear elastic expansion bag 7, the paint in the rear elastic expansion bag 7 enters the connecting channel 64, due to the extrusion and rotation of the motor 36, the paint is sprayed on the composite plate body 8, and the area scraped off the oxidation layer is low-temperature ceramic sprayed.

[0066] Step five, when the oxidation layer of the same transverse area of the composite plate body 8 is scraped off and sprayed, hold the handle 35 with your hand and slowly rotate to change the angle of the entire polishing mechanism, and then repeat the operations of steps two, three, and four, until all areas on the surface of the composite plate body 8 are coated with ceramic paint, the cold air delivered into the shell cover 2 reduces the temperature of the composite plate body 8, and accelerates the solidification of the ceramic paint.

[0067] In summary, the copper-aluminum composite plate low-temperature ceramic spraying equipment is provided with a workbench 3 on the base 1, the workbench 3 is provided with a through groove 31, the polishing mechanism is placed in the through groove 31, the workbench 3 is pivotally connected with a connecting rod 34 at the front and rear ends, and the connecting rod 34 is connected with the polishing mechanism. The polishing mechanism is composed of a sliding rod 5, a rotating ring 6 and an elastic expansion bag 7, the elastic expansion bag 7 drives the rotating ring 6 to move back and forth along the sliding rod 5. The polishing mechanism is manually turned over to make circular motion, and the metal composite plate is polished. The shell cover 2 is arranged, the shell cover 2 covers the workbench 3, and cold air is sent into the shell cover 2, so that the effect of low-temperature spraying is realized, and the ceramic spraying solidification is accelerated.

[0068] In addition, the surface of the rotating ring 6 is provided with a groove one 62 and a groove two 63, the groove one 62 is provided with a polishing piece 622, and the groove two 63 is provided with a piston plate 68, the paint enters the sliding rod 5 and is sprayed out from the piston plate 68, so that the rotating ring 6 has the functions of polishing and painting, and the metal composite plate can be immediately sprayed with ceramic paint after the oxide layer is removed. The metal composite plate is prevented from reoxidizing before being sprayed with ceramic paint.

[0069] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A low-temperature ceramic spraying device for copper-aluminum composite panels, which processes a semi-circular composite panel body (8), comprising a base (1), characterized in that: The top of the base (1) is provided with a shell cover (2), the shell cover (2) is provided with a workbench (3), the bottom of the workbench (3) is fixedly installed with the top of the base (1), the left and right sides of the workbench (3) are symmetrically provided with through grooves (31), the composite board body (8) is placed on the workbench (3), and the composite board body (8) is located between the two through grooves (31), one of the through grooves (31) is provided with a polishing mechanism, and the front and rear ends of the workbench (3) are both connected with rotating shafts (33), and the rotating shafts (33) are pivotally connected with connecting rods (34); The front connecting rod (34) is connected with the polishing mechanism and is provided with a handle (35) in the front, and the rear connecting rod (34) is connected with a paint pipe (37); the paint pipe (37) is communicated with the polishing mechanism; The polishing mechanism comprises a sliding rod (5), a rotating ring (6) and two elastic expansion bags (7), the front end of the sliding rod (5) is connected with the transmission shaft of the motor (36), the rear end of the sliding rod (5) is pivotally connected with the rear connecting rod (34), the inner axis of the sliding rod (5) is provided with a feeding channel (51) along the length direction, one end of the paint pipe (37) extends into the feeding channel (51), and the other end of the paint pipe (37) extends out of the shell cover (2) and is connected with a paint conveying device; The surface of the sliding rod (5) is provided with a sliding groove (52) along the length direction, the rotating ring (6) is slidably connected with the sliding rod (5) through the sliding groove (52), when the motor (36) drives the sliding rod (5) to rotate, the rotating ring (6) rotates with the sliding rod (5), the elastic expansion bag (7) is sleeved on the rod body of the sliding rod (5), and the two elastic expansion bags (7) are located on the front and rear sides of the rotating ring (6), respectively, and the end, away from the rotating ring (6), of the elastic expansion bag (7) is fixedly connected with the end portion of the sliding rod (5); The center of the rotating ring (6) is welded with a protrusion (61) at equal angles, the protrusion (61) is slidably connected with the sliding groove (52), the surface of the rotating ring (6) is provided with a groove one (62) at equal angles, the groove one (62) is provided with an electric push rod one (621), the electric push rod one (621) is connected with the inner wall of the protrusion (61), and the outward end of the electric push rod one (621) is fixedly installed with a polishing piece (622); The surface of the rotating ring (6) is provided with a groove two (63) at equal angles, the groove two (63) is located between two adjacent groove ones (62), the groove two (63) is slidably connected with a piston plate (68), a plurality of feeding pipes (681) are connected with the inner side of the piston plate (68) at equal distances, the rotating ring (6) is provided with a connecting channel (64) corresponding to the groove two (63) in the inner side, one end of the feeding pipe (681) extends to the outer side of the piston plate (68), the other end of the feeding pipe (681) is communicated with the connecting channel (64), the groove two (63) is provided with an electric push rod two (67), and the movable end of the electric push rod two (67) is hingedly connected with the piston plate (68); The side, close to the rotating ring (6), of the elastic expansion bag (7) is connected with an elastic hose, and the elastic hose is used for butt joint with the connecting channel (64). The shell cover (2) is provided with a window hole (21) in the front, and a glove (22) is fixedly installed at the window hole (21); a cold air pipe (23) is welded and communicated at the top of the shell cover (2); The base (1) is further provided with a control panel on the top for controlling the operation of the electronic components; The sliding rod (5) is symmetrically provided with a micro electronic valve I (53) at both ends, one end of the micro electronic valve I (53) is communicated with the feeding channel (51), and the other end of the micro electronic valve I (53) is communicated with the inside of the elastic expansion bag (7); the rotating ring (6) is provided with a micro electronic valve II (65) corresponding to the connecting channel (64) at the front and rear ends, one end of the micro electronic valve II (65) is connected with the elastic hose, and the other end of the micro electronic valve II (65) is connected with the connecting channel (64).

2. The copper-aluminum composite plate low-temperature ceramic spraying equipment according to claim 1, characterized in that: The workbench (3) is provided with a slot (32) on the top, and the support (4) is fixedly inserted into the workbench (3) through the slot (32), the support (4) is used for supporting the end of the composite board body (8), a plurality of support rods (41) are welded on the top of the support (4), the lateral edges of the support rods (41) are connected with transverse parts (42), and the support rods (41) and the transverse parts (42) form clamping corners, and the edges of the composite board body (8) are overlapped at the clamping corners.

3. The copper-aluminum composite plate low-temperature ceramic spraying equipment according to claim 2, characterized in that: The elastic expansion bag (7) is in a wrinkled shape.

4. The copper-aluminum composite plate low-temperature ceramic spraying equipment according to claim 3, characterized in that: A plurality of branches (66) are formed on the inner wall of the groove II (63) towards the side of the connecting channel (64), one end of the branch (66) is communicated with the connecting channel (64), and the end of the feeding pipe (681) away from the piston plate (68) is inserted into the branch (66), and the feeding pipe (681) is always inserted into the branch (66).

5. The copper-aluminum composite plate low-temperature ceramic spraying device according to claim 4, characterized in that: A layer of brush (682) is arranged on the outer surface of the piston plate (68).

6. The use method of the copper-aluminum composite board low-temperature ceramic spraying equipment according to claim 5, characterized in that: Step one, place the composite board body (8) on the workbench (3), place the shell cover (2) on the base (1), cover the shell cover (2) on the workbench (3), slowly convey the cold air into the shell cover (2), and put the hands into the gloves (22) to perform the polishing operation; Step two, start the motor (36), the motor (36) drives the sliding rod (5) to rotate, the sliding rod (5) drives the rotating ring (6) to rotate, then the electric push rod I (621) is controlled to be elongated, the polishing piece (622) is extended to the outside of the groove I (62) and contacts the surface of the composite board body (8), and the polishing piece (622) scrapes off the oxide layer on the surface of the composite board body (8); Step three, then the electric push rod I (621) is controlled to be retracted, the electric push rod II (67) is controlled to be elongated, the piston plate (68) is close to the polishing position of the composite board body (8), the micro electronic valve I (53) on the rear side is opened, the micro electronic valve II (65) on the rear side is closed, the coating is poured into the elastic expansion bag (7) on the rear side of the rotating ring (6), the elastic expansion bag (7) on the rear side of the rotating ring (6) is inflated and bulges, and the rotating ring (6) is pushed to move from the rear to the front; Step four, then close the rear side micro electronic valve one (53), the rear side micro electronic valve two (65) open, then open the front side micro electronic valve one (53), close the front side micro electronic valve two (65), the paint is filled into the elastic bag (7) of the front side of the rotating ring (6), so that the front side rotating ring (6) moves from front to back, at this time, due to the extrusion of the rear side elastic bag (7), the paint in the rear side elastic bag (7) enters the connecting channel (64), due to the extrusion and the rotation of the motor (36), the paint is sprayed on the composite plate body (8), and the area scraped off the oxide layer is low temperature ceramic sprayed; Step five, when the oxide layer of the same transverse area of the composite plate body (8) is scraped off and sprayed, the handle (35) is held by hand to slowly rotate and change the angle of the whole polishing mechanism, and the steps two, three and four are repeated until all areas of the surface of the composite plate body (8) are coated with ceramic paint. The cold air delivered into the shell (2) reduces the temperature of the composite plate body (8) and accelerates the solidification of the ceramic paint.

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