Semi-automatic paint spraying system for vehicle

Abstract

The invention relates to the technical field of vehicle paint spraying, and provides a vehicle semi-automatic paint spraying system comprising a paint spraying gun for spraying paint to a to-be-sprayed vehicle; the paint proportioning and supplying unit is used for supplying paint to the paint spraying gun and recovering paint mist generated in the paint spraying gun at the same time; the positive pressure and negative pressure supply unit is connected with the paint burdening and supply unit and is used for pressurizing the paint burdening and supply unit, so that the paint is supplied to the paint spraying gun through the paint burdening and supply unit; meanwhile, the paint burdening and supplying unit is vacuumized to form negative pressure, and paint mist generated in the paint spraying gun is recycled through the negative pressure; and the movable operation platform is located around the to-be-painted vehicle and drives the paint spraying gun to move, and paint spraying operation is conducted on all parts of the to-be-painted vehicle. According to the scheme, the situation that the physical health of operators is affected by paint mist poison gas can be effectively avoided, and meanwhile the paint spraying efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle painting, and in particular to a vehicle semi-automatic painting system. Background Art

[0002] Spray painting technology has long been popularized in both industrial and civilian use, especially in the industrial field, where most industries have achieved automated and systematic operation. However, no matter how advanced the spray painting system is, there are at least two major disadvantages: one is the poor operating environment. Even if the exhaust and painting systems are designed with the best ventilation, there is still waste paint mist (toxic gas) constantly mixed in the air, which affects the health of operators at all times; the other is that the spray painting system is limited by the shape of the object. Since the object cannot be in a rectangular or sphere-like geometric shape that is easy to operate, the automatic spray painting system must rely on manual assistance to complete the operation of the irregular parts of the object, which is labor-intensive and still has low efficiency. It can be seen that automatic spray painting technology has not yet reached the level of full automation. Summary of the invention

[0003] The purpose of the present invention is to solve at least one technical problem in the background technology and provide a semi-automatic vehicle painting system.

[0004] To achieve the above object, the present invention provides a semi-automatic vehicle painting system, comprising:

[0005] A paint spray gun sprays paint onto the vehicle to be painted;

[0006] A paint batching and supply unit supplies paint to the paint spray gun for painting, or recovers the paint mist generated by the paint spray gun through the paint spray gun;

[0007] A positive pressure and negative pressure supply unit is connected to the paint batching and supply unit to pressurize the paint batching and supply unit so that the paint is supplied to the paint spray gun through the paint batching and supply unit; at the same time, the paint batching and supply unit is evacuated to form a negative pressure, and the paint mist generated in the paint spray gun is recovered through the negative pressure;

[0008] The mobile operating platform is located around the vehicle to be painted, and drives the paint spray gun to move, so as to realize the painting operation on various parts of the vehicle to be painted.

[0009] According to one aspect of the present invention, the mobile operating platform comprises: a transversely movable operating platform, a longitudinally movable operating platform and an operating frame;

[0010] The transversely movable operating platform is arranged on both sides of the vehicle to be painted;

[0011] The longitudinally movable operating platform is arranged at one end or both ends of the vehicle to be painted;

[0012] The operating frame is rotatably arranged on the transverse moving operating platform and the longitudinal moving operating platform, and can reciprocate along the horizontal direction and the vertical direction on the transverse moving operating platform and the longitudinal moving operating platform;

[0013] The paint spray gun is arranged on the operating frame.

[0014] According to one aspect of the present invention, the transversely movable operating platform and the longitudinally movable operating platform are arranged in a foundation pit, and the foundation pit is arranged on the ground where the vehicle to be painted is located;

[0015] The transversely movable operating platform and the longitudinally movable operating platform drive the operating frame and the paint spraying gun to respectively spray paint the side surface, end surface and top surface of the vehicle to be painted in the entire range.

[0016] According to one aspect of the present invention, both ends of the transversely movable operating platform and both ends of the longitudinally movable operating platform are respectively provided with limit switches, and buffer springs are provided inside the limit switches.

[0017] According to one aspect of the present invention, the transverse moving operating platform and the longitudinal moving operating platform both include: a base, a hydraulic lifting drive structure, a hydraulic lifting bracket, and a moving platform;

[0018] The base is arranged in the foundation pit;

[0019] The hydraulic lifting support is supported on the base;

[0020] The hydraulic lifting drive structure drives the hydraulic lifting support to perform lifting movement;

[0021] The mobile platform is supported on the top of the hydraulic lifting support;

[0022] The operating frame is supported on the mobile platform and can move horizontally on the mobile platform.

[0023] According to one aspect of the present invention, the mobile platform comprises: a bracket, a conveyor belt structure, an operating frame support platform and a limiter hammer;

[0024] The support is supported on the hydraulic lifting support;

[0025] The conveyor belt structure is arranged on the bracket;

[0026] The operating frame support platform is connected to the conveyor belt on the conveyor belt structure, and the operating frame is supported on the operating frame support platform;

[0027] The limiter hammers are arranged on both sides of the operating frame support platform and are arranged opposite to the limiter switch.

[0028] According to one aspect of the present invention, the transversely movable operating platform and the longitudinally movable operating platform further include: four sets of safety guardrail structures;

[0029] Each group of the safety guardrail structure is respectively arranged around the mobile platform. When the mobile platform is located in the foundation pit, the safety guardrail structure is also located in the foundation pit, and the top is flush with the mobile platform; when the mobile platform rises and leaves the foundation pit, the safety guardrails in the safety guardrail structure protrude from the four sides of the mobile platform for safety protection.

[0030] According to one aspect of the present invention, each group of the safety guardrail structure comprises: a first spring, a second spring, a first oil wire rope, a second oil wire rope, a first pulley, a second pulley, a third pulley, a fourth pulley and a safety guardrail;

[0031] The first spring and the second spring are arranged horizontally, and one end of the first spring and the second spring is fixed to the middle of the side wall of the base;

[0032] The first pulley and the second pulley are respectively fixed to the ends of the side wall of the base, and are respectively arranged opposite to the other ends of the first spring and the second spring;

[0033] One end of the first oil wire rope and the second oil wire rope are connected to the other end of the first spring and the second spring respectively;

[0034] The third pulley and the fourth pulley are respectively fixed to two ends of the side wall of the mobile platform;

[0035] The inner wall of the safety guardrail is slidably connected to the outer wall of the mobile platform;

[0036] After the first oil wire rope is slidably connected to the first pulley and the third pulley respectively, the other end of the first oil wire rope is connected to the bottom of the safety guardrail;

[0037] After the second oil wire rope is slidingly connected to the second pulley and the fourth pulley respectively, the other end of the second oil wire rope is connected to the bottom of the safety guardrail.

[0038] According to one aspect of the present invention, the operating frame comprises: a fixed base, a movable base, a support and a movable bracket for a paint spray gun;

[0039] The fixed base is supported on the operating frame support platform;

[0040] The movable base is rotatably supported on the fixed base;

[0041] The support is supported on the movable base, the paint spray gun movable bracket is supported on one side of the support, and the paint spray gun is movably supported on the paint spray gun movable bracket.

[0042] According to one aspect of the present invention, it also includes: a closed gas mask, which is arranged on the operating frame and is connected to the positive and negative pressure supply unit through a pipeline, and clean air is transported to the closed gas mask through the positive and negative pressure supply unit.

[0043] According to one scheme of the present invention, a semi-automatic vehicle painting system includes: a paint spray gun, which sprays paint toward a vehicle to be painted; a paint batching and supply unit, which supplies prepared paint to the paint spray gun and recovers paint mist generated in the paint spray gun; a positive pressure and negative pressure supply unit, which is connected to the paint batching and supply unit, pressurizes the paint batching and supply unit so that the paint is supplied to the paint spray gun through the paint batching and supply unit; at the same time, the paint batching and supply unit is evacuated to form a negative pressure, and the paint mist generated in the paint spray gun is recovered by the negative pressure; a mobile operating platform, which is located around the vehicle to be painted, is driven by an oil pump to move and drive the paint spray gun to move, and the paint spray gun performs multi-degree-of-freedom movement on the mobile operating platform to realize the painting operation of various parts of the vehicle to be painted. The power supply supplies power to the above-mentioned components. With such an arrangement, the paint proportioning and supply units can be evacuated through the positive and negative pressure supply units to form negative pressure to extract the paint mist generated in the paint spray gun, so that the paint mist toxic gas near the paint spray gun is reduced as much as possible, reducing or avoiding the impact of the paint mist toxic gas on the health of the operator. At the same time, the mobile operating platform drives the paint spray gun set thereon to move, and the paint spray gun can realize multi-degree-of-freedom movement on the mobile operating platform, so it can spray paint on various parts of the vehicle, effectively improve the painting efficiency, and reduce or avoid manual assistance.

[0044] According to one solution of the present invention, the transversely movable operating platform and the longitudinally movable operating platform further include: four groups of safety guardrail structures; each group of safety guardrail structures is respectively arranged around the mobile platform, and when the mobile platform is located in the foundation pit, the safety guardrail structure is also located in the foundation pit, and the top is flush with the mobile platform; when the mobile platform rises and leaves the foundation pit, the safety guardrails in the safety guardrail structure protrude from the four sides of the mobile platform for safety protection. With such arrangement, when the mobile platform extends out of the foundation pit and moves upward, the safety guardrail structure can provide safety protection around the mobile platform through the safety guardrail structure, so that the operator located on the mobile platform is safely protected. When the mobile platform is located in the foundation pit, the safety guardrail structure does not need to provide safety protection for the operator. At this time, the safety guardrail structure as a whole is in the foundation pit at the same time to avoid the formation of ground obstacles, ensuring that the ground is flat and unobstructed.

[0045] According to one scheme of the present invention, each group of safety guardrail structures includes: a first spring, a second spring, a first oil wire rope, a second oil wire rope, a first pulley, a second pulley, a third pulley, a fourth pulley and a safety guardrail; the first spring and the second spring are arranged horizontally, and one end of the first spring and the second spring is fixed to the middle part of the side wall of the base; the first pulley and the second pulley are respectively fixed to the end of the side wall of the base, and are respectively arranged opposite to the other end of the first spring and the second spring; one end of the first oil wire rope and the second oil wire rope are respectively connected to the other end of the first spring and the second spring; the third pulley and the fourth pulley are respectively fixed to the two ends of the side wall of the mobile platform; the inner wall of the safety guardrail is slidably connected to the outer wall of the mobile platform; after the first oil wire rope is slidably connected to the first pulley and the third pulley respectively, the other end of the first oil wire rope is connected to the bottom of the safety guardrail; after the second oil wire rope is slidably connected to the second pulley and the fourth pulley respectively, the other end of the second oil wire rope is connected to the bottom of the safety guardrail. With such an arrangement, when the hydraulic lifting drive structure drives the hydraulic lifting bracket to move up and down, the safety guardrail will move up and down around the mobile platform due to the coordinated movement of the spring, the oil wire rope and the pulley. When the hydraulic lifting bracket is driven to drive the mobile platform to move upward, the oil wire rope will pull the bottom of the safety guardrail so that the bottom of the safety guardrail is aligned with the bottom of the mobile platform, and the top of the safety guardrail protrudes from the mobile platform to achieve a protective effect; when the hydraulic lifting bracket is driven to drive the mobile platform to move downward, the oil wire rope will gradually release the tension, so that the top of the safety guardrail slowly aligns with the bottom of the mobile platform in the foundation pit, thereby achieving the effect of resetting the foundation pit to avoid forming a ground obstacle.

[0046] According to one solution of the present invention, the present invention further comprises: a closed gas mask, which is arranged on the operating frame and connected to the positive pressure and negative pressure supply unit through a pipeline, and clean air is delivered to the closed gas mask through the positive pressure and negative pressure supply unit. With such arrangement, the operator can wear the closed gas mask to breathe clean air when performing the painting operation, further avoiding the inhalation of paint mist and toxic gas, and ensuring health.

[0047] According to the solution of the present invention, the present invention recovers paint mist through negative pressure and breathes clean air through a closed gas mask, so that the operator can effectively avoid inhaling paint mist and toxic gases, effectively ensuring health; in addition, the present invention, through the ingenious design of the structure, enables the paint spray gun to achieve multi-degree-of-freedom and large-range movement, thereby achieving all-round coverage of the vehicle with paint, ensuring that there are no dead corners in the paint spraying, and effectively improving the paint spraying effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A block diagram schematically showing a structural arrangement of a vehicle semi-automatic painting system according to an embodiment of the present invention;

[0049] Figure 2 A schematic top view of a mobile operating platform according to an embodiment of the present invention is shown;

[0050] Figure 3 A schematic diagram showing the structural arrangement of a transversely movable operating platform and a longitudinally movable operating platform according to an embodiment of the present invention;

[0051] Figure 4 A diagram schematically showing a usage state of a lateral mobile operating platform according to an embodiment of the present invention;

[0052] Figure 5 A partial top view schematically showing a transverse moving operation platform and a longitudinal moving operation platform according to an embodiment of the present invention;

[0053] Figure 6 A partial cross-sectional view schematically shows a transverse moving operation platform and a longitudinal moving operation platform according to an embodiment of the present invention.

[0054] Figure 7 and Figure 8 A schematic diagram showing different state structures of a safety fence structure according to an embodiment of the present invention;

[0055] Fig. 9 A schematic diagram showing the structural layout of an operating frame according to an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The content of the present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only to enable those skilled in the art to better understand and thus implement the content of the present invention, rather than implying any limitation on the scope of the present invention.

[0057] As used herein, the term “including” and variations thereof are to be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” is to be interpreted as “based, at least in part, on.” The terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment.”

[0058] Figure 1 The following is a block diagram schematically showing the structural arrangement of a semi-automatic vehicle painting system according to an embodiment of the present invention. Figure 1 As shown, in this embodiment, the semi-automatic vehicle painting system includes:

[0059] A paint spray gun 1 sprays paint toward a vehicle 33 to be painted;

[0060] The paint batching and supply unit 2 supplies paint to the paint spray gun 1 for painting, or recovers the paint mist generated in the paint spray gun 1 through the paint spray gun 1 (for example, after the painting is completed, the paint mist is recovered by setting a corresponding recovery channel inside the paint spray gun 1);

[0061] The positive and negative pressure supply unit 3 is connected to the paint batching and supply unit 2, pressurizes the paint batching and supply unit 2 so that the paint is supplied to the paint spray gun 1 through the paint batching and supply unit 2; at the same time, the paint batching and supply unit 2 is evacuated to form a negative pressure, and the paint mist generated in the paint spray gun 1 is recovered through the negative pressure;

[0062] The mobile operating platform 4 is located around the vehicle to be painted, and is driven by the oil pump 34 to move and drive the paint spray gun 1 to move. The paint spray gun 1 performs multi-degree-of-freedom movement on the mobile operating platform 4 to achieve paint spraying operations on various parts of the vehicle to be painted.

[0063] A power supply 35, for supplying power to the above components;

[0064] In this embodiment, the positive and negative pressure supply unit 3 may be composed of an air compressor and a vacuum machine.

[0065] As configured above, the paint proportioning and supply unit 2 can be evacuated by the positive and negative pressure supply unit 3 to form a negative pressure to extract the paint mist generated in the paint spray gun 1, so that the paint mist toxic gas near the paint spray gun 1 is reduced as much as possible, reducing or avoiding the impact of the paint mist toxic gas on the health of the operator; at the same time, the mobile operating platform 4 drives the paint spray gun 1 set thereon to move, and the paint spray gun 1 can achieve multi-degree-of-freedom movement on the mobile operating platform 4, so it can spray paint on various parts of the vehicle, effectively improve the painting efficiency, and reduce or avoid manual assistance.

[0066] Further, Figure 2 Schematically shows a top view of a mobile operating platform according to an embodiment of the present invention. Figure 2 As shown, in this embodiment, the mobile operating platform 4 includes: a transversely movable operating platform 5, a longitudinally movable operating platform 6 and an operating frame 7;

[0067] The transversely movable operating platform 5 is arranged on both sides of the vehicle to be painted;

[0068] The longitudinally movable operating platform 6 is arranged at one end or both ends of the vehicle to be painted;

[0069] The operating frame 7 is rotatably disposed on the transverse movable operating platform 5 and the longitudinal movable operating platform 6, respectively, and can reciprocate along the horizontal direction and the vertical direction on the transverse movable operating platform 5 and the longitudinal movable operating platform 6;

[0070] The paint spray gun 1 is arranged on the operating frame 7. In this way, the horizontally movable operating platform 5 and the vertically movable operating platform 6 can be used to surround the vehicle to be painted, and then the paint spray gun 1 arranged thereon can be used to spray paint the vehicle in all directions at the same time. Figure 2 What is shown in the figure is that the track vehicle is at the end of the track, so the track position at one end is not provided with the longitudinally movable operating platform 6. When the operating platforms are arranged correspondingly on all sides, it is applicable to the situation that the trackless vehicle or part of the track can be temporarily removed.

[0071] Furthermore, if Figure 2 As shown, in this embodiment, the transversely movable operating platform 5 and the longitudinally movable operating platform 6 are arranged in a foundation pit 8, and the foundation pit is arranged on the ground where the vehicle to be painted is located;

[0072] The transverse movable operating platform 5 and the longitudinal movable operating platform 6 drive the operating frame 7 and the paint spray gun 1 to spray paint the side, end and top surfaces of the vehicle to be painted in a full range. With such an arrangement, when it is necessary to spray paint the vehicle, the transverse movable operating platform 5 and the longitudinal movable operating platform 6 can be driven to extend from the ground, and then the vehicle can be sprayed in all directions by the paint spray gun 1 arranged thereon, thereby ensuring the spraying effect and efficiency. When the vehicle is completed or does not need to be sprayed with paint, the transverse movable operating platform 5 and the longitudinal movable operating platform 6 can be driven into the foundation pit 8, so that the transverse movable operating platform 5 and the longitudinal movable operating platform 6 have no effect on the ground. At this time, the operating frame 7 and the paint spray gun 1 can be removed from the transverse movable operating platform 5 and the longitudinal movable operating platform 6, and then the ground can be leveled by, for example, covering the foundation pit 8 with a cover plate to realize free movement of the vehicle.

[0073] Further, Figure 3 A schematic diagram showing the structural arrangement of a transversely movable operating platform and a longitudinally movable operating platform according to an embodiment of the present invention; Figure 4 A diagram schematically showing applicable states of a lateral movement operation platform according to an embodiment of the present invention; Figure 5 A partial top view schematically showing a transverse moving operation platform and a longitudinal moving operation platform according to an embodiment of the present invention; Figure 6 A partial cross-sectional view schematically shows a transverse moving operation platform and a longitudinal moving operation platform according to an embodiment of the present invention.

[0074] like Figure 3-Figure 4 As shown, in this embodiment, the transverse moving operation platform 5 and the longitudinal moving operation platform 6 both include: a base 9, a hydraulic lifting drive structure 10, a hydraulic lifting bracket 11, and a moving platform 12;

[0075] The base 9 is arranged in a foundation pit 8 located on the ground 38;

[0076] The hydraulic lifting support 11 is supported on the base 9;

[0077] The hydraulic lifting drive structure 10 drives the hydraulic lifting support 11 to perform lifting movement;

[0078] The mobile platform 12 is supported on the top of the hydraulic lifting support 11;

[0079] The operating frame 7 is supported on the mobile platform 12 and can translate on the mobile platform 12 .

[0080] like Figure 3 and Figure 4 As shown, in this embodiment, a slide groove 36 is provided on the bottom surface of the mobile platform 12 and the top surface of the base 9 for moving one end of the hydraulic lifting bracket 11 to realize the telescopic movement of the hydraulic lifting bracket 11.

[0081] As configured above, the hydraulic lifting drive structure 10 (such as an oil cylinder) can be used to drive the hydraulic lifting support 11 to perform telescopic movement, so that the hydraulic lifting support 11 can drive the mobile platform 12 to perform lifting movement.

[0082] Furthermore, if Figure 5 and Figure 6 As shown, in this embodiment, both ends of the transverse moving operating platform 5 and both ends of the longitudinal moving operating platform 6 are respectively provided with limit switches 17, and buffer springs are arranged inside the limit switches 17.

[0083] Furthermore, if Figure 5 and Figure 6 As shown, in this embodiment, the mobile platform 12 includes: a bracket 13, a conveyor belt structure 14, an operating frame support platform 15 and a limiter hammer 16;

[0084] The support 13 is supported on the hydraulic lifting support 11;

[0085] The conveyor belt structure 14 is arranged on the bracket 13;

[0086] The operating frame support platform 15 is connected to the conveyor belt 39 on the conveyor belt structure 14, and the operating frame 7 is supported on the operating frame support platform 15;

[0087] The limiter hammers 16 are arranged on both sides of the operating frame support platform 15 and are arranged opposite to the limiter switches 17 .

[0088] In this embodiment, the operating frame support platform 15 is a metal platform, and two sides thereof are connected to the conveyor belts on the conveyor belt structure 14 .

[0089] As set above, the conveyor belt structure 14 can be used to transmit the operating frame support platform 15 arranged thereon, so that the operating frame 7 supported on the operating frame support platform 15 drives the paint spray gun 1 to move horizontally. In addition, during the movement, when the limiter hammers 16 on both sides of the operating frame support platform 15 touch the limiter switch 17, the conveyor belt structure 14 is controlled to stop running through the limiter switch 17, so that the operating frame support platform 15 stops moving, effectively limiting the operating frame support platform 15, and ensuring the precise movement range.

[0090] Further, Figure 7 and Figure 8 Schematically showing different state structures of the safety guardrail structure according to an embodiment of the present invention. Figure 7 and Figure 8 As shown, in this embodiment, the transversely movable operating platform 5 and the longitudinally movable operating platform 6 further include: four sets of safety guardrail structures 18;

[0091] Each group of safety guardrail structures 18 is respectively arranged around the mobile platform 12. When the mobile platform 12 is located in the foundation pit 8, the safety guardrail structure 18 is also located in the foundation pit 8, and the top is flush with the mobile platform 12; when the mobile platform 12 rises and leaves the foundation pit 8, the safety guardrails in the safety guardrail structure 18 protrude from the surroundings of the mobile platform 12 for safety protection. In this way, when the mobile platform 12 extends out of the foundation pit 8 and moves upward, the safety guardrail structure 18 can provide safety protection for the surroundings of the mobile platform 12, so that the operator located on the mobile platform 12 is safely protected. When the mobile platform 12 is located in the foundation pit 8, the safety guardrail structure 18 does not need to provide safety protection for the operator. At this time, the safety guardrail structure 18 is in the foundation pit 8 as a whole, which can avoid the formation of ground obstacles and ensure that the ground 38 is flat and unobstructed.

[0092] Furthermore, if Figure 7 and Figure 8 As shown, in this embodiment, each group of safety guardrail structures 18 includes: a first spring 19, a second spring 20, a first oil wire rope 21, a second oil wire rope 22, a first pulley 23, a second pulley 24, a third pulley 25, a fourth pulley 26 and a safety guardrail 27;

[0093] The first spring 19 and the second spring 20 are arranged horizontally, and one end of the first spring 19 and the second spring 20 is fixed to the middle of the side wall of the base 9;

[0094] The first pulley 23 and the second pulley 24 are respectively fixed to the ends of the side wall of the base 9, and are respectively arranged opposite to the other ends of the first spring 19 and the second spring 20;

[0095] One end of the first oil wire rope 21 and the second oil wire rope 22 are connected to the other end of the first spring 19 and the second spring 20 respectively;

[0096] The third pulley 25 and the fourth pulley 26 are respectively fixed to the two ends of the side wall of the mobile platform 12;

[0097] The inner wall of the safety guardrail 27 is slidably connected to the outer wall of the mobile platform 12;

[0098] After the first oil wire rope 21 is slidably connected to the first pulley 23 and the third pulley respectively, the other end of the first oil wire rope 21 is connected to the bottom of the safety guardrail 27;

[0099] After the second oil wire rope 22 is slidingly connected to the second pulley 22 and the fourth pulley 26 respectively, the other end of the second oil wire rope 22 is connected to the bottom of the safety guardrail 27.

[0100] As configured above, when the hydraulic lifting drive structure 10 drives the hydraulic lifting support 11 to move up and down, the safety guardrail 27 can move up and down around the mobile platform 12 due to the coordinated movement of the spring, the oil wire rope and the pulley. When the hydraulic lifting support 11 is driven to drive the mobile platform 12 to move upward, the oil wire rope will pull the bottom of the safety guardrail 27, so that the bottom of the safety guardrail 27 is aligned with the bottom of the mobile platform 12, and the top of the safety guardrail 27 protrudes from the mobile platform 12 to achieve a protective effect; when the hydraulic lifting support 11 is driven to drive the mobile platform 12 to move downward, the oil wire rope will gradually release the tension, so that the top of the safety guardrail 27 is slowly aligned with the bottom of the mobile platform 12 in the foundation pit 8, thereby resetting the foundation pit to avoid forming a ground obstacle.

[0101] Further, Fig. 9 The structural layout diagram of the operating frame according to one embodiment of the present invention is schematically shown. Fig. 9 As shown, in this embodiment, the operating frame 7 includes: a fixed base 28, a movable base 29, a support 30 and a movable support 31 for the paint spray gun;

[0102] The fixed base 28 is supported on the operating frame support platform 15;

[0103] The movable base 29 is rotatably supported on the fixed base 28;

[0104] The support 30 is supported on the movable base 29, the paint gun movable bracket 31 is supported on one side of the support 30, and the paint gun 1 is movably supported on the paint gun movable bracket 31. In this way, the support 30 can be rotated on the fixed base 28 through the movable base 29, and the paint gun 1 can be supported on the paint gun movable bracket 31 with more freedom of movement, which can effectively increase the freedom of movement of the paint gun 1, so that the paint gun 1 can spray paint at all positions of the vehicle without dead angles, ensuring the painting effect and efficiency.

[0105] Furthermore, if Figure 1 and Fig. 9 As shown, in this embodiment, the present invention further includes: a closed gas mask 32, which is arranged on the operating frame 7, and is connected to the positive and negative pressure supply unit 3 through a pipeline 37, and clean air is delivered to the closed gas mask 32 through the positive and negative pressure supply unit 3. With such an arrangement, the operator can wear the closed gas mask 32 to breathe clean air when performing the painting operation, further avoiding the inhalation of paint mist and toxic gas, and ensuring health.

[0106] Further, according to an embodiment of the present invention, a paint spraying control button, a button for controlling the mobile operating platform 4 to realize the above-mentioned horizontal movement and lifting movement, and a button for controlling the rotation of the operating frame 7 can be arranged on the handle of the paint spray gun 1. Such an arrangement allows the operator to control the entire painting process through a paint spray gun 1, effectively improving the painting efficiency.

[0107] According to the above scheme of the present invention, the present invention recovers paint mist through negative pressure and breathes clean air through a closed gas mask, so that the operator can effectively avoid inhaling paint mist and toxic gases, effectively ensuring health; in addition, the present invention, through the ingenious design of the structure, enables the paint spray gun to achieve multi-degree-of-freedom and large-range movement, thereby achieving all-round coverage of the vehicle with paint, ensuring that there are no dead corners in the paint spraying, and effectively improving the paint spraying effect and efficiency.

[0108] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. The vehicle semi-automatic painting system is characterized by: include: A paint spray gun (1) sprays paint toward a vehicle to be painted; A paint batching and supply unit (2) supplies paint to the paint spray gun (1) for spraying, or recovers the paint mist generated by the paint spray gun (1) through the paint spray gun (1); A positive pressure and negative pressure supply unit (3) is connected to the paint batching and supply unit (2) to increase the pressure of the paint batching and supply unit (2) so that the paint is supplied to the paint spray gun (1) through the paint batching and supply unit (2); at the same time, the paint batching and supply unit (2) is evacuated to form a negative pressure, and the paint mist generated in the paint spray gun (1) is recovered through the negative pressure; The mobile operating platform (4) is located around the vehicle to be painted and drives the paint spraying gun (1) to move, thereby performing a paint spraying operation on various parts of the vehicle to be painted.

2. The semi-automatic vehicle painting system according to claim 1, characterized in that: The mobile operating platform (4) comprises: a transversely movable operating platform (5), a longitudinally movable operating platform (6) and an operating frame (7); The transversely movable operating platform (5) is arranged on both sides of the vehicle to be painted; The longitudinally movable operating platform (6) is arranged at one end or both ends of the vehicle to be painted; The operating frame (7) is rotatably arranged on the transverse movable operating platform (5) and the longitudinal movable operating platform (6), and can reciprocate along the horizontal direction and the vertical direction on the transverse movable operating platform (5) and the longitudinal movable operating platform (6); The paint spray gun (1) is arranged on the operating frame (7).

3. The semi-automatic vehicle painting system according to claim 2, characterized in that: The transversely movable operating platform (5) and the longitudinally movable operating platform (6) are arranged in a foundation pit (8), and the foundation pit is arranged on the ground where the vehicle to be painted is located; The transversely movable operating platform (5) and the longitudinally movable operating platform (6) drive the operating frame (7) and the paint spraying gun (1) to respectively spray paint the side surface, end surface and top surface of the vehicle to be painted in the entire range.

4. The semi-automatic vehicle painting system according to claim 3, characterized in that: The two ends of the transversely movable operating platform (5) and the two ends of the longitudinally movable operating platform (6) are respectively provided with limit switches (17), and the limit switches (17) are provided with buffer springs.

5. The semi-automatic vehicle painting system according to claim 4, characterized in that: The transversely movable operating platform (5) and the longitudinally movable operating platform (6) both comprise: a base (9), a hydraulic lifting drive structure (10), a hydraulic lifting bracket (11), and a movable platform (12); The base (9) is arranged in the foundation pit (8); The hydraulic lifting support (11) is supported on the base (9); The hydraulic lifting drive structure (10) drives the hydraulic lifting support (11) to perform lifting movement; The mobile platform (12) is supported on the top of the hydraulic lifting support (11); The operating frame (7) is supported on the mobile platform (12) and can move horizontally on the mobile platform (12).

6. The semi-automatic vehicle painting system according to claim 5, characterized in that: The mobile platform (12) comprises: a bracket (13), a conveyor belt structure (14), an operating frame support platform (15) and a limiter hammer (16); The support (13) is supported on the hydraulic lifting support (11); The conveyor belt structure (14) is arranged on the support (13); The operating frame support platform (15) is connected to the conveyor belt on the conveyor belt structure (14), and the operating frame (7) is supported on the operating frame support platform (15); The limiter hammer (16) is arranged on both sides of the operating frame support platform (15) and is arranged opposite to the limiter switch (17).

7. The semi-automatic vehicle painting system according to claim 6, characterized in that: The transversely movable operating platform (5) and the longitudinally movable operating platform (6) further include: four groups of safety guardrail structures (18); Each group of the safety guardrail structures (18) is respectively arranged around the mobile platform (12); when the mobile platform (12) is located in the foundation pit (8), the safety guardrail structure (18) is also located in the foundation pit (8), and the top end is flush with the mobile platform (12); when the mobile platform (12) rises and leaves the foundation pit (8), the safety guardrails in the safety guardrail structure (18) protrude from the four sides of the mobile platform (12) to provide safety protection.

8. The semi-automatic vehicle painting system according to claim 7, characterized in that: Each group of the safety guardrail structure (18) comprises: a first spring (19), a second spring (20), a first oil wire rope (21), a second oil wire rope (22), a first pulley (23), a second pulley (24), a third pulley (25), a fourth pulley (26) and a safety guardrail (27); The first spring (19) and the second spring (20) are arranged horizontally, and one end of the first spring (19) and the second spring (20) are fixed to the middle of the side wall of the base (9); The first pulley (23) and the second pulley (24) are respectively fixed to the ends of the side wall of the base (9), and are respectively arranged opposite to the other ends of the first spring (19) and the second spring (20); One end of the first oil wire rope (21) and the second oil wire rope (22) are respectively connected to the other end of the first spring (19) and the second spring (20); The third pulley (25) and the fourth pulley (26) are respectively fixed to two ends of the side wall of the mobile platform (12); The inner wall of the safety guardrail (27) is slidably connected to the outer wall of the mobile platform (12); After the first oil wire rope (21) is respectively slidably connected to the first pulley (23) and the third pulley, the other end of the first oil wire rope (21) is connected to the bottom of the safety guardrail (27); After the second oil wire rope (22) is respectively slidably connected to the second pulley (22) and the fourth pulley (26), the other end of the second oil wire rope (22) is connected to the bottom of the safety guardrail (27).

9. The semi-automatic vehicle painting system according to claim 8, characterized in that: The operating frame (7) comprises: a fixed base (28), a movable base (29), a support (30) and a movable support (31) for a paint spray gun; The fixed base (28) is supported on the operating frame support platform (15); The movable base (29) is rotatably supported on the fixed base (28); The support (30) is supported on the movable base (29), the paint spray gun movable bracket (31) is supported on one side of the support (30), and the paint spray gun (1) is movably supported on the paint spray gun movable bracket (31).

10. The semi-automatic vehicle painting system according to any one of claims 2 to 9, characterized in that: Also includes: A closed gas mask (32) is arranged on the operating frame (7) and is connected to the positive and negative pressure supply unit (3) through a pipeline, and clean air is transported to the closed gas mask (32) through the positive and negative pressure supply unit (3).

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