Spraying construction manipulator for painting surface of wood veneer

Abstract

The invention relates to the technical field of industrial robots, in particular to a spraying construction manipulator for wood veneer surface painting, which comprises a spraying construction manipulator body, the top of the spraying construction manipulator body is rotatably connected with a top arm, the surface of the top arm is provided with a mounting groove, and a spray gun assembly is inserted into the mounting groove. An inserting groove is formed in the front end of the spray gun assembly, a positioning inserting block is inserted into the side wall of the inserting groove, an inserting plate is inserted into the inserting groove, and the inserting plate extrudes and pushes the positioning inserting block to be inserted into the surface of the mounting groove; the paint spraying device has the beneficial effects that in the working process of a spiral heating pipe, an air pump switch is triggered, an air pump supplements air into an annular cavity, the air heated by the spiral heating pipe enters the annular cavity through a through hole, the air is continuously injected along with the air pump, the heated air is dissipated through air dissipation holes, and sprayed paint is heated and dried; the drying speed of the paint is increased, the construction period is shortened, and the overall construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of industrial robots, specifically to a spray painting robot for painting wood veneer surfaces. Background Technology

[0002] In wood veneer surface painting operations, spray painting robots are commonly used equipment. However, existing robots of this type have many problems: The connection between the spray gun assembly and the robotic arm is not flexible enough, and the installation and disassembly process is cumbersome and time-consuming, affecting construction efficiency. Moreover, the stability after installation is poor. During the operation of the robotic arm, the spray gun assembly is prone to loosening or even falling off, causing construction interruption, and may also damage the spray gun assembly or cause paint pollution to the surrounding environment.

[0003] In cold environments, the paint at the nozzle of the spray gun assembly is prone to solidification or becoming viscous due to the drop in temperature, making it difficult for the paint to spray out smoothly, resulting in uneven spraying, affecting the coating quality of the wood veneer, and making it difficult to achieve the desired decorative effect.

[0004] The paint dries slowly after spraying, which prolongs the entire construction cycle and reduces construction efficiency. This problem is particularly prominent in projects requiring continuous operation or with strict time constraints, becoming a significant factor restricting construction progress. Summary of the Invention

[0005] The purpose of this invention is to provide a spraying robot for painting wood veneer surfaces, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spraying construction robot for painting wood veneer surfaces, comprising a spraying construction robot body, a top arm rotatably connected to the top of the spraying construction robot body, an installation groove being formed on the surface of the top arm, a spray gun assembly being inserted into the installation groove, a slot being formed at the front end of the spray gun assembly, a positioning block being inserted into the side wall of the slot, and an insert plate being inserted into the inside of the slot, the insert plate pushing the positioning block into the surface of the installation groove; A sleeve plate is installed at one end of the insert plate. The sleeve plate is fitted onto the front end of the spray gun assembly. A sleeve is fixed on the surface of the sleeve plate. A spiral heating tube is fitted on the outside of the sleeve. A protective sleeve is fitted on the outside of the spiral heating tube. A connecting ring is fixed at one end of the protective sleeve. An annular cavity is reserved between the connecting ring and the protective sleeve. Multiple through holes are opened on the inner annular surface of the annular cavity, and multiple air vents are opened on one side of the annular cavity. An air pump is provided at one end of the insert plate, and the air pump replenishes air into the annular cavity.

[0007] Preferably, two limiting strips are fixed on each of the two side walls of the installation groove that are parallel to each other, and the spray gun assembly is inserted between the four limiting strips.

[0008] Preferably, there are two slots, and the two slots are arranged vertically. Sockets are provided on each of the two side walls of the slots that are parallel to each other. The positioning blocks and the sockets correspond one by one. The positioning blocks are inserted into the corresponding sockets. An elastic rubber band is fixed on the surface of the spray gun assembly, and the elastic rubber band and the sockets correspond one by one. The elastic rubber band covers the corresponding sockets. One end of the positioning block is fixed on the elastic rubber band, and the other end of the positioning block has an inclined surface. The width of the positioning block is greater than the depth of the socket. After the insertion plate is inserted into the slot, it pushes the positioning block to stretch the elastic rubber band and deform, and then inserts into the positioning slot opened on the surface of the installation groove.

[0009] Preferably, a traction plate is fixed at one end of the insertion plate, and the traction plates at the ends of the two insertion plates are both fixed on the surface of the sleeve plate, and the two traction plates are symmetrically distributed about the center of the sleeve plate.

[0010] Preferably, a heat-conducting silica gel sleeve is fixed on the inner wall of the sleeve, and a plurality of limiting grooves are provided on the inner wall of the sleeve. A silica gel strip is inserted into the limiting groove, and the silica gel strip is integrally formed on the outer wall of the heat-conducting silica gel sleeve. The heat-conducting silica gel sleeve is clamped between the nozzle tube of the spray gun assembly and the sleeve.

[0011] Preferably, the protective sleeve has a circular tube structure with a "U"-shaped cross section. The outer diameter of the connecting ring is greater than the outer diameter of the protective sleeve. The screw on the surface of the connecting ring penetrates through the connecting ring and is screwed on the surface of the through hole.

[0012] Preferably, the air pump is fixed on the surface of the traction plate. The suction pipe of the air pump is away from the protective sleeve, and the exhaust pipe of the air pump penetrates through the outer wall of the protective sleeve and then inserts into the annular cavity.

[0013] Preferably, connecting plates are fixed on both sides of the two insertion plates. The connecting plates have a "C"-shaped plate structure. Elastic hanging plates are fixed on the surface of the connecting plates. The elastic hanging plates have an "L"-shaped plate structure. The end of the elastic hanging plate away from the connecting plate is a right-angled trapezoidal strip, and the right-angled trapezoidal strip is inserted into the card slot opened on the outer wall of the top arm. A pull ring is fixed on the surface of the elastic hanging plate.

[0014] Preferably, a through hole is provided on the surface of the connecting plate. A screw rod is inserted into the through hole. One end of the screw rod is fixed on the surface of the top arm, and the other end of the screw rod is sleeved and screwed with a nut.

[0015] Embedding grooves are provided on both the top surface and the bottom surface of the connecting plate. Rubber clamping pieces are fixed in the embedding grooves. The thickness of the rubber clamping pieces is greater than the depth of the embedding grooves. After the screw rod and the nut are locked, the rubber clamping pieces are clamped between the connecting plate and the top arm and generate elastic deformation.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a spray painting robot for wood veneer surfaces. The spray gun assembly is detachably mounted on the front end of the top arm. During installation, the spray gun assembly is pushed into the mounting groove, and four limiting strips surround it to prevent it from falling directly. Then, an insert plate is inserted, which pushes the spray gun assembly into the slot along the inclined surface of the positioning block, stretching and deforming the elastic rubber band. The deformed elastic rubber band and one end of the positioning block extend into the positioning slot, forming a locking position between the spray gun assembly and the mounting groove for quick fixation. For removal, simply pull out the insert plate; the elastic rubber band rebounds, pulling the positioning block back from the positioning slot. Releasing the locking position allows the spray gun assembly to be removed. The entire process is simple to operate, greatly saving installation and disassembly time, improving construction efficiency, and ensuring stable installation, guaranteeing the continuity and stability of construction.

[0017] When the spiral heating tube switch is triggered, the spiral heating tube heats up, and the sleeve transfers the heat to the nozzle tube, ensuring that the paint in the nozzle tube is always in a fluid state. Even in low-temperature environments, normal spraying can be performed, ensuring the quality and effect of the spraying, and making the wood veneer paint more uniform and beautiful.

[0018] During the operation of the spiral heating tube, the air pump switch is triggered, and the air pump replenishes air into the annular cavity. The air heated by the spiral heating tube enters the annular cavity through the through hole. As the air pump continues to inject air, the heated air is released through the air vent, which heats up and dries the sprayed paint, speeds up the drying process, shortens the construction cycle, and improves the overall construction efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the top arm and the spray gun assembly of the present invention; Figure 3 for Figure 2 Sectional view of the structure at point AA; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point D; Figure 5 for Figure 2 Structural cross-section view at point BB; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point E in the middle; Figure 7 for Figure 2 Cross-sectional view of the structure at point CC; Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point F; Figure 9This is a schematic diagram of the connection structure between the protective sleeve and the sleeve plate of the present invention; Figure 10 This is a schematic diagram of the connection structure between the sleeve and the sleeve plate of the present invention; Figure 11 This is a schematic diagram of the positioning insert structure of the present invention; Figure 12 This is a schematic diagram of the spray gun assembly structure of the present invention.

[0020] In the diagram: 1. Spray painting robot body, 101. Top arm, 102. Mounting groove, 103. Limiting strip, 104. Positioning slot, 105. Spray gun assembly, 2. Slot, 201. Insert, 202. Elastic rubber band, 203. Positioning block, 204. Insert plate, 3. Traction plate, 301. Sleeve, 302. Sleeve, 4. Thermal conductive silicone sleeve, 401. Spiral heating tube, 5. Protective sleeve, 6. Connecting ring, 601. Through hole, 602. Vent hole, 603. Air pump, 7. Connecting plate, 8. Perforation, 801. Screw, 802. Nut, 803. Embedding groove, 804. Rubber clip, 805. Elastic hanging plate, 806. Pull ring, 807. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-12This invention provides a technical solution: a spraying robot for painting wood veneer surfaces, comprising a spraying robot body 1, a top arm 101 rotatably connected to the top of the spraying robot body 1, a mounting groove 102 formed on the surface of the top arm 101, a spray gun assembly 2 inserted into the inside of the mounting groove 102, two limiting strips 103 fixed on each of the two parallel side walls of the mounting groove 102, and the spray gun assembly 2 inserted between the four limiting strips 103; a slot 201 formed at the front end of the spray gun assembly 2, a positioning block 204 inserted into the side wall of the slot 201, and a plate 3 inserted into the inside of the slot 201, the plate 3 pushing the positioning block 204 into the surface of the mounting groove 102; two slots 201 are provided, the two slots 2 The components are arranged vertically. Each slot 201 has an insertion port 202 on its two parallel sidewalls. The positioning blocks 204 correspond one-to-one with the insertion ports 202. The positioning blocks 204 are inserted into the corresponding insertion ports 202. The surface of the spray gun assembly 2 is fixed with an elastic rubber band 203, which also corresponds one-to-one with the insertion ports 202. The elastic rubber band 203 covers the corresponding insertion ports 202. One end of the positioning block 204 is fixed to the elastic rubber band 203, and the other end of the positioning block 204 has a bevel. The width of the positioning block 204 is greater than the depth of the insertion port 202. After the insert plate 3 is inserted into the slot 201, it pushes the positioning blocks 204 to stretch the elastic rubber band 203 and deforms it before inserting it into the positioning slot 104 on the surface of the mounting groove 102.

[0023] The spray gun assembly 2 is detachably mounted on the front end of the top arm 101. Both the spraying robot body 1 and the top arm 101 are existing mature technologies. The bottom end of the spray gun assembly 2, which extends into the mounting groove 102, is equipped with a paint delivery pipeline. After the spray gun assembly 2 is pushed into the mounting groove 102, it is protected by four limiting strips 103 to prevent it from falling directly out of the mounting groove 102. At this time, the insert plate 3 is inserted into the corresponding slot 201. The insert plate 3 pushes the positioning insert 204 into the insertion port 202 along the inclined surface. After the positioning insert 204 stretches and deforms the elastic rubber band 203, the deformed elastic rubber band... The belt 203 is inserted into the positioning slot 104, and one end of the positioning block 204 also extends into the positioning slot 104, forming a locking position between the spray gun assembly 2 and the mounting slot 102, thereby quickly fixing the spray gun assembly 2 in the mounting slot 102. When the spray gun assembly 2 needs to be removed, simply pull the insert plate 3 out of the corresponding slot 201. When the insert plate 3 no longer blocks the positioning block 204, the elastic rubber belt 203 rebounds and pulls the positioning block 204 back, that is, the positioning block 204 is pulled out of the positioning slot 104. At this time, the locking position between the spray gun assembly 2 and the mounting slot 102 is removed, and the spray gun assembly 2 can be pulled out of the mounting slot 102.

[0024] To achieve heat preservation of the paint at the nozzle of the spray gun assembly 2, the following was proposed: One end of the plug board 3 is provided with a sleeve board 302. The sleeve board 302 is sleeved on the front end of the spray gun assembly 2. One end of the plug board 3 is fixed with a traction board 301. The traction boards 301 at both ends of the two plug boards 3 are both fixed on the surface of the sleeve board 302, and the two traction boards 301 are symmetrically distributed about the center of the sleeve board 302. A sleeve 4 is fixed on the surface of the sleeve board 302. A spiral heating tube 5 is sleeved and installed outside the sleeve 4. A protective sleeve 6 is sleeved outside the spiral heating tube 5. One end of the protective sleeve 6 is fixed with a connecting ring 601; a heat-conducting silica gel sleeve 401 is fixed on the inner wall of the sleeve 4, and a plurality of limiting grooves are provided on the inner wall of the sleeve 4. A silica gel strip is inserted into the limiting groove. The silica gel strip is integrally formed on the outer wall of the heat-conducting silica gel sleeve 401. The heat-conducting silica gel sleeve 401 is clamped between the nozzle tube of the spray gun assembly 2 and the sleeve 4; the protective sleeve 6 has a circular tube structure with a "U" - shaped cross - section. The outer diameter of the connecting ring 601 is larger than the outer diameter of the protective sleeve 6. The screw on the surface of the connecting ring 601 passes through the connecting ring 601 and is screwed on the surface of the through - hole 602.

[0025] It should be noted that the "L" - shaped nozzle tube at the front end of the spray gun assembly 2 can be unscrewed and removed from the front end of the spray gun assembly 2. After the sleeve board 302 is sleeved on the front end of the spray gun assembly 2, the nozzle tube is then screwed on the front end of the spray gun assembly 2. After triggering the switch of the spiral heating tube 5, the spiral heating tube 5 works and heats up. The sleeve 4 transfers the heat of the spiral heating tube 5 to the nozzle tube to ensure that the paint in the nozzle tube is in a fluid state.

[0026] In order to firmly limit the plug board 3 in the slot 201, the following is proposed: Connecting plates 8 are fixed on both sides of the plug board 3. The connecting plates 8 have a "匚" - shaped plate structure. An elastic hanging plate 806 is fixed on the surface of the connecting plate 8. The elastic hanging plate 806 has an "L" - shaped plate structure. The end of the elastic hanging plate 806 away from the connecting plate 8 is a right - angled trapezoidal strip, and the right - angled trapezoidal strip is inserted into the card slot 105 opened on the outer wall of the top arm 101. A pull ring 807 is fixed on the surface of the elastic hanging plate 806; a through - hole 801 is opened on the surface of the connecting plate 8. A screw rod 802 is inserted into the through - hole 801. One end of the screw rod 802 is fixed on the surface of the top arm 101, and the other end of the screw rod 802 is sleeved and screwed with a nut 803; embedding grooves 804 are opened on both the top surface and the bottom surface of the connecting plate 8. Rubber clamping pieces 805 are fixed in the embedding grooves 804. The thickness of the rubber clamping pieces 805 is greater than the depth of the embedding grooves 804. After the screw rod 802 and the nut 803 are locked, the rubber clamping pieces 805 are clamped between the connecting plate 8 and the top arm 101 and generate elastic deformation.

[0027] When one end of the insert plate 3 is inserted into the slot 201, push the insert plate 3 until the right-angled trapezoidal strip of the elastic hanging plate 806 is inserted into the slot 105. At this time, the elastic hanging plate 806 pulls the connecting plate 8, and the connecting plate 8 pulls the insert plate 3 to prevent the insert plate 3 from moving backward. At this time, the screw 802 passes through the corresponding through hole 801. After the nut 803 and the washer are put on the corresponding screw 802, they are locked. At this time, the rubber clamp 805 rebounds after being compressed and deformed, so that the screw 802 and the nut 803 are firmly screwed together.

[0028] In order to achieve pre-drying treatment of the paint sprayed by the spray gun assembly 2, the following was proposed: An annular cavity is reserved between the connecting ring 601 and the protective sleeve 6. Multiple through holes 602 are opened on the inner annular surface of the annular cavity, and multiple air vents 603 are opened on one side of the annular cavity. An air pump 7 is provided at one end of the insert plate 3. The air pump 7 replenishes air into the annular cavity. The air pump 7 is fixed on the surface of the traction plate 301. The air pump 7's suction pipe is away from the protective sleeve 6, and the air pump 7's exhaust pipe passes through the outer wall of the protective sleeve 6 and is inserted into the annular cavity.

[0029] During the operation of the spiral heating tube 5, the switch of the air pump 7 is triggered, and the air pump 7 replenishes air into the annular cavity. The air heated by the spiral heating tube 5 enters the annular cavity through the through hole 602. As the air pump 7 continues to inject air into the annular cavity, the heated air is released through the air outlet 603, which heats up and dries the sprayed paint.

[0030] Instructions for using a spray painting robot for wood veneer surfaces: Push the spray gun assembly 2 into the mounting groove 102 on the surface of the top arm 101. At this time, the spray gun assembly 2 is protected by four limiting strips 103 fixed on the two parallel side walls of the mounting groove 102, preventing the spray gun assembly 2 from falling directly out of the mounting groove 102. At the same time, ensure that the paint delivery pipeline configured at the bottom of the mounting groove 102 is properly connected. Insert the insert plate 3 into the slot 201 at the front end of the spray gun assembly 2. Since there are two slots 201 arranged vertically, each of the two parallel side walls of the slot 201 has an insertion port 202. The positioning insert 204 corresponds to the insertion port 202 one by one. One end of the positioning insert 204 is fixed to the surface of the spray gun assembly 2 and covers the elastic rubber band 203 of the corresponding insertion port 202. The other end has a bevel and its width is greater than the depth of the insertion port 202. The insert plate 3 pushes the positioning insert 204 into the insertion port 202 along the inclined surface. After the positioning insert 204 stretches and deforms the elastic rubber band 203, it squeezes the deformed elastic rubber band 203 into the positioning slot 104 opened on the surface of the mounting groove 102. One end of the positioning insert 204 also extends into the positioning slot 104, forming a locking position between the spray gun assembly 2 and the mounting groove 102, thereby quickly fixing the spray gun assembly 2 in the mounting groove 102.

[0031] When one end of the insert plate 3 is inserted into the slot 201, the insert plate 3 is pushed until the right-angled trapezoidal strip of the elastic hanging plate 806 fixed on the surface of the connecting plate 8 on both sides of the insert plate 3 is engaged in the slot 105 opened on the outer wall of the top arm 101. At this time, the elastic hanging plate 806 pulls the connecting plate 8, and the connecting plate 8 pulls the insert plate 3 to prevent the insert plate 3 from moving backward. At this time, the screw 802 fixed on the surface of the connecting plate 8 passes through the through hole 801 opened on the surface of the connecting plate 8, and the nut 803 and the washer are put on the corresponding screw 802 and locked. At the same time, the rubber clips 805 fixed in the mounting grooves 804 on the top and bottom surfaces of the connecting plate 8 rebound after being compressed and deformed, so that the screw 802 and the nut 803 are firmly screwed together.

[0032] A sleeve 302 is installed at one end of the insert plate 3, and the sleeve 302 is fitted onto the front end of the spray gun assembly 2. Two traction plates 301 (symmetrically distributed about the center of the sleeve 302) fixed at one end of the insert plate 3 are fixed to the surface of the sleeve 302, and a sleeve 4 is fixed to the surface of the sleeve 302. A spiral heating tube 5 is fitted onto the outside of the sleeve 4, and a protective sleeve 6 is fitted onto the outside of the spiral heating tube 5. The protective sleeve 6 is a circular tube with a "U"-shaped cross-section, and a connecting ring 601 is fixed at one end. A thermally conductive silicone sleeve 401 is fixed to the inner wall of the sleeve 4, and silicone strips are inserted into multiple limiting grooves opened on the inner wall of the sleeve 4. The thermally conductive silicone sleeve 401 is clamped between the nozzle tube of the spray gun assembly 2 and the sleeve 4. It should be noted that the "L"-shaped nozzle tube at the front end of the spray gun assembly 2 can be unscrewed and removed from the front end of the spray gun assembly 2. After the sleeve 302 is fitted onto the front end of the spray gun assembly 2, the nozzle tube is screwed onto the front end of the spray gun assembly 2. Triggering the switch of the spiral heating tube 5 causes it to heat up after it starts working. The sleeve 4 transfers the heat from the spiral heating tube 5 to the nozzle tube, ensuring that the paint in the nozzle tube remains in a fluid state.

[0033] An annular cavity is provided between the connecting ring 601 and the protective sleeve 6. Multiple through holes 602 are formed on the inner surface of the annular cavity, and multiple air vents 603 are formed on one side of the annular cavity. An air pump 7 is provided at one end of the insert plate 3. During the operation of the spiral heating tube 5, the air pump 7 is activated. The air pump 7 supplies air to the annular cavity. The air heated by the spiral heating tube 5 enters the annular cavity through the through holes 602. As the air pump 7 continuously injects air into the annular cavity, the heated air is released through the air vents 603, thus heating and drying the sprayed paint.

[0034] Simply pull the insert plate 3 out of the corresponding slot 201. When the insert plate 3 no longer blocks the positioning insert 204, the elastic rubber band 203 rebounds and pulls the positioning insert 204 back, that is, the positioning insert 204 is pulled out of the positioning slot 104. At this time, the locking between the spray gun assembly 2 and the mounting slot 102 is removed, and the spray gun assembly 2 can be pulled out of the mounting slot 102.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spraying robot for painting wood veneer surfaces, comprising a spraying robot body (1), wherein a top arm (101) is rotatably connected to the top of the spraying robot body (1), characterized in that: The top arm (101) has a mounting groove (102) on its surface. A spray gun assembly (2) is inserted into the mounting groove (102). A slot (201) is opened at the front end of the spray gun assembly (2). A positioning block (204) is inserted into the side wall of the slot (201). A plate (3) is inserted into the slot (201). The plate (3) pushes the positioning block (204) into the surface of the mounting groove (102). A sleeve plate (302) is installed at one end of the insert plate (3). The sleeve plate (302) is fitted onto the front end of the spray gun assembly (2). A sleeve tube (4) is fixed on the surface of the sleeve plate (302). A spiral heating tube (5) is fitted on the outside of the sleeve tube (4). A protective sleeve (6) is fitted on the outside of the spiral heating tube (5). A connecting ring (601) is fixed at one end of the protective sleeve (6). An annular cavity is reserved between the connecting ring (601) and the protective sleeve (6). Multiple through holes (602) are opened on the inner annular surface of the annular cavity. Multiple air vents (603) are opened on one side of the annular cavity. An air pump (7) is provided at one end of the insert plate (3). The air pump (7) replenishes air into the annular cavity.

2. The spray painting robot for wood veneer surface coating according to claim 1, characterized in that: Two limiting strips (103) are fixed on the two parallel side walls of the mounting groove (102), and the spray gun assembly (2) is inserted between the four limiting strips (103).

3. The spray painting robot for wood veneer surface coating according to claim 1, characterized in that: Two slots (201) are provided, arranged vertically. Each slot (201) has two parallel sidewalls with insertion holes (202). Positioning blocks (204) correspond one-to-one with the insertion holes (202). Positioning blocks (204) are inserted into their respective insertion holes (202). An elastic rubber band (203) is fixed to the surface of the spray gun assembly (2), also corresponding one-to-one with the insertion holes (202). The belt (203) covers the corresponding socket (202). One end of the positioning block (204) is fixed on the elastic rubber belt (203). The other end of the positioning block (204) is provided with a bevel. The width of the positioning block (204) is greater than the depth of the socket (202). After the insert plate (3) is inserted into the slot (201), it pushes the positioning block (204) to stretch the elastic rubber belt (203) and deforms it before inserting it into the positioning slot (104) opened on the surface of the mounting groove (102).

4. The spray painting robot for wood veneer surface coating according to claim 1, characterized in that: One end of the insert plate (3) is fixed with a traction plate (301). The traction plates (301) at the ends of the two insert plates (3) are fixed on the surface of the sleeve plate (302), and the two traction plates (301) are symmetrically distributed about the center of the sleeve plate (302).

5. The spray painting robot for wood veneer surface coating according to claim 1, characterized in that: The inner wall of the sleeve (4) is fixed with a thermally conductive silicone sleeve (401), and the inner wall of the sleeve (4) is provided with multiple limiting grooves. A silicone strip is inserted into the limiting groove. The silicone strip is integrally formed on the outer wall of the thermally conductive silicone sleeve (401). The thermally conductive silicone sleeve (401) is clamped between the nozzle tube of the spray gun assembly (2) and the sleeve (4).

6. The spray painting robot for wood veneer surface coating according to claim 4, characterized in that: The protective sleeve (6) has a circular tube structure with a "U"-shaped cross-section. The outer diameter of the connecting ring (601) is larger than the outer diameter of the protective sleeve (6). The screws on the surface of the connecting ring (601) pass through the connecting ring (601) and are screwed onto the surface of the through-hole (602).

7. A spray painting robot for wood veneer surface coating according to claim 6, characterized in that: The air pump (7) is fixed on the surface of the traction plate (301). The suction pipe of the air pump (7) is away from the protective sleeve (6). The exhaust pipe of the air pump (7) penetrates through the outer wall of the protective sleeve (6) and is inserted into the annular cavity.

8. The spraying robot for painting wood veneer surfaces according to claim 1, characterized in that: On both sides of the two plug plates (3), connecting plates (8) are fixed. The connecting plates (8) have a "C"-shaped plate structure. An elastic hanging plate (806) is fixed on the surface of the connecting plate (8). The elastic hanging plate (806) has an "L"-shaped plate structure. The end of the elastic hanging plate (806) away from the connecting plate (8) is a right-angled trapezoidal strip, and the right-angled trapezoidal strip is inserted into the card slot (105) opened on the outer wall of the top arm (101). A pull ring (807) is fixed on the surface of the elastic hanging plate (806).

9. A spray painting robot for wood veneer surface coating according to claim 1, characterized in that: A through-hole (801) is opened on the surface of the connecting plate (8). A screw rod (802) is inserted into the through-hole (801). One end of the screw rod (802) is fixed on the surface of the top arm (101). A nut (803) is sleeved and screwed on the other end of the screw rod (802).

10. A spray painting robot for wood veneer surface coating according to claim 9, characterized in that: Embedded grooves (804) are opened on both the top surface and the bottom surface of the connecting plate (8). Rubber clamping pieces (805) are fixed inside the embedded grooves (804). The thickness of the rubber clamping pieces (805) is greater than the depth of the embedded grooves (804). After the screw rod (802) and the nut (803) are locked, the rubber clamping pieces (805) are elastically deformed while clamping between the connecting plate (8) and the top arm (101).

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