CN-121624013-B - All-round spraying device of car dysmorphism spare part

CN121624013BCN 121624013 BCN121624013 BCN 121624013BCN-121624013-B

Abstract

The invention discloses an all-dimensional spraying device for special-shaped parts of automobiles, which relates to the field of spraying equipment and comprises a spraying workbench, a multi-angle adjusting mechanism, a plate die and a spraying mechanism, wherein the multi-angle adjusting mechanism is arranged on the spraying workbench and comprises a transverse deflection plate, a longitudinal deflection plate and a negative pressure tool assembly, the transverse deflection plate is rotatably arranged on the spraying workbench, the longitudinal deflection plate is rotatably arranged on the transverse deflection plate, the deflection axis of the transverse deflection plate is perpendicular to the deflection axis of the longitudinal deflection plate, the negative pressure tool assembly comprises a plurality of negative pressure columns, the plate die is sleeved on the negative pressure columns, the outline dimension of the plate die is matched with the outline dimension of a plate to be sprayed, the plate to be sprayed is attached to the plate die through the negative pressure column tool, a plurality of heating cavities are independently formed in the plate die, so that the spraying position of the plate always tends to be in a horizontal state, and the problem of self-flowing of paint caused by self gravity is avoided in a synchronous curing mode.

Inventors

JIAN TAO
LI SANYAN
ZHANG YUNWEI
LI XUEPING

Assignees

成都锦城学院

Dates

Publication Date: 20260508
Application Date: 20260205

Claims (9)

1. The utility model provides an all-round spraying device of car dysmorphism spare part, its characterized in that includes the spraying workstation, installs multi-angle adjustment mechanism, plate mould and the spraying mechanism on the spraying workstation, multi-angle adjustment mechanism includes horizontal deflector plate, vertical deflector plate and negative pressure frock subassembly, horizontal deflector plate rotates to be installed on the spraying workstation, vertical deflector plate rotates to be installed at horizontal deflector plate, the deflection axis of horizontal deflector plate and the deflection axis of vertical deflector plate all level set up, just the deflection axis of horizontal deflector plate is perpendicular to the deflection axis of vertical deflector plate, negative pressure frock subassembly includes a plurality of negative pressure post, a plurality of negative pressure post linearity are installed on vertical deflector plate, a plurality of negative pressure holes have been seted up to the one end that the vertical deflector plate was kept away from to the negative pressure post, plate mould suit is on the negative pressure post, the external dimension of the plate mould is matched with the external dimension of the plate to be sprayed, the plate mould is provided with a through hole for a negative pressure column to pass through, the plate to be sprayed is attached to the plate mould and is provided with a plurality of heating cavities through a negative pressure column tool, a hot air hose is independently arranged in the plate mould, each heating cavity is connected with an air outlet pipe of a hot air device, each hot air hose is provided with an electromagnetic valve, according to the spraying position of the special-shaped plate, the heating cavity corresponding to the position is filled with hot air, the fully sprayed area is cured, the self-flowing problem can not occur when the sprayed area is deflected into an inclined state, the heating cavities are mutually independent, the sprayed area is only heated and cured, the phenomenon that the non-sprayed area is in a high temperature state to influence the adhesion of the paint is avoided, an annular heating cavity is formed in the plate mold around the through hole, an inclined hole is formed in the side wall of the through hole, the lower end of the inclined hole is communicated with the annular heating cavity, hot air enters the annular heating cavity to heat the plate around the through hole, hot air in the annular heating cavity is blown out through the inclined hole, and the hot air acts on the plate obliquely upwards under the action of the inclined hole, so that the position, corresponding to the through hole, of the plate can be effectively heated, and the problem that paint flows from the position, corresponding to the through hole, of the plate is avoided; the spraying mechanism comprises a movable cross beam, a spraying sliding seat, an electrostatic spray gun and an air heater, wherein the spraying sliding seat is slidably arranged on the movable cross beam, the moving direction of the spraying sliding seat is perpendicular to that of the movable cross beam, the electrostatic spray gun and the air heater are arranged on the spraying sliding seat, and the air heater is arranged behind the electrostatic spray gun.
2. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 1, wherein each negative pressure column is provided with a fixed column, the top of each fixed column is provided with a mounting groove, the negative pressure column is slidably matched in the mounting groove, one side of each fixed column in the mounting groove is provided with a locking cavity, the side wall of each mounting groove, which is close to the locking cavity, is provided with two vertical sliding grooves, each vertical sliding groove is communicated with the locking cavity, each vertical sliding groove is internally slidably matched with a guide column, each guide column is fixedly connected with the corresponding negative pressure column, each locking cavity is internally provided with a locking mechanism, each locking mechanism is arranged close to the top of each fixed column and comprises a locking sliding block, and each guide column is provided with a locking sliding block for propping the corresponding guide column against the side wall of each vertical sliding groove.
3. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 2, wherein the locking mechanism further comprises a bidirectional threaded screw rod and a driving shaft, the bidirectional threaded screw rod and the driving shaft are rotatably installed on the fixed column, the bidirectional threaded screw rod is perpendicular to the guide column, the locking slide blocks are in threaded sleeving on the bidirectional threaded screw rod, the threads of the two locking slide blocks are in opposite directions, the guide column and the bidirectional threaded screw rod are perpendicular to the driving shaft, the driving shaft is rotatably connected with the fixed column, a first bevel gear and a second bevel gear are sleeved on the driving shaft and the bidirectional threaded screw rod respectively, and the second bevel gear is meshed with the first bevel gear.
4. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 3, wherein the side wall of the fixed column is in threaded connection with a driving screw rod, the driving screw rod is coaxial with a driving shaft, a butt joint hole is formed in one end, close to the driving screw rod, of the driving shaft, a butt joint sliding groove is formed in the side wall of the butt joint hole along the axial direction of the driving shaft, a butt joint sliding block is slidably matched in the butt joint sliding groove, the tail part of the driving screw rod movably penetrates into the butt joint hole, and the butt joint sliding block is fixedly connected with the driving screw rod.
5. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 1, wherein a negative pressure cavity is arranged in the negative pressure column, the negative pressure cavity is communicated with the negative pressure column, the negative pressure column is connected with negative pressure equipment through a negative pressure hose, a pneumatic hole is formed in the side wall of the negative pressure column, a pneumatic shaft is slidably arranged in the pneumatic hole, a pneumatic channel is arranged in the negative pressure column, one end of the pneumatic channel is communicated with the negative pressure cavity, the other end of the pneumatic channel is connected with one side communicated with the pneumatic hole, a central hole is formed in one end, far away from the negative pressure cavity, of the pneumatic shaft, a side hole communicated with the central hole is formed in the side wall of the pneumatic shaft, and the side hole is communicated with the pneumatic channel by moving the pneumatic shaft, or the side wall of the side hole is plugged with the pneumatic channel.
6. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 5, wherein the outer wall of the negative pressure column is coaxially provided with a large-diameter hole, the diameter of the large-diameter hole is larger than that of the air pressure hole, a hollow driving column is slidably arranged in the large-diameter hole, one end of the air pressure shaft is fixedly connected with the hollow driving column, a spring is sleeved on the air pressure shaft, one end of the spring is connected with the hollow driving column, the other end of the spring is connected with a step formed by the large-diameter hole and the air pressure hole, a hollow rotating shaft is assembled in the large-diameter hole, two grooves are symmetrically formed in one end of the hollow driving column close to the hollow rotating shaft, two grooves are connected through arc grooves, the arc grooves are V-shaped, arc transition is adopted between the arc grooves and the grooves, two extrusion plates are symmetrically fixed on the side walls of the hollow rotating shaft, when the two extrusion plates are respectively positioned in the two grooves, the side holes are communicated with the air pressure channels, and when the two extrusion plates are respectively positioned in the two arc grooves, the side holes are staggered with the air pressure channels.
7. The omnibearing spraying device for the special-shaped parts of the automobile according to claim 6, wherein one end of the hollow rotating shaft far away from the hollow driving column is fixedly sleeved with a driving ring, a deflector rod is fixed on the side wall of the driving ring, an electric push rod is rotatably installed on the negative pressure column, and a telescopic shaft of the electric push rod is rotatably connected with the deflector rod.
8. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 1, wherein two transverse supports are fixed on the spraying workbench, a transverse rotating shaft is arranged between the two transverse supports, the transverse rotating shaft is rotationally connected with the transverse supports, the transverse deflection plate is fixedly sleeved on the transverse rotating shaft, one transverse support is provided with a first motor, an output shaft of the first motor is in transmission connection with the transverse rotating shaft through a coupling, the transverse deflection plate is fixedly provided with two longitudinal supports, a longitudinal rotating shaft is arranged between the two longitudinal supports, the longitudinal rotating shaft is rotationally connected with the longitudinal supports, the longitudinal deflection plate is fixedly sleeved on the longitudinal rotating shaft, one longitudinal support is provided with a second motor, and an output shaft of the second motor is in transmission connection with the longitudinal rotating shaft.
9. The omnibearing spraying device for the special-shaped parts of the automobiles according to claim 1, wherein the spraying mechanism further comprises a sliding rail, a spraying base and spraying cylinders, the sliding rails are arranged on two sides of the spraying workbench, the spraying base is slidably mounted on the sliding rail, the spraying cylinders are vertically mounted on the top of the spraying base, two ends of the movable cross beam are respectively mounted on telescopic shafts of the two spraying cylinders, the bottom of the movable cross beam is provided with a linear driving module, and the spraying sliding seat is mounted on a sliding seat of the linear driving module.

Description

All-round spraying device of car dysmorphism spare part Technical Field The invention relates to the field of spraying equipment, in particular to an omnibearing spraying device for an automobile special-shaped part. Background In the process of automobile production, the plate used for the automobile shell needs to be sprayed, and the automobile shell is mostly a special-shaped plate, such as an engine hood arc panel, a back tail door panel bending plate and the like, and because of complex structures such as continuous arc surfaces (the curvature radius of the engine hood is 800-1500 mm), right-angle bending (the bending angle of the back tail door is 90-120 DEG) and the like, the special-shaped plate is difficult to spray. At present, spraying of special-shaped plates is divided into manual spraying and automatic spraying, manual spraying is required to be carried out by a handheld electrostatic spray gun, multi-angle follow-up spraying is carried out around the special-shaped plates, and after each section of spraying, the paint is required to be primarily leveled by waiting 5-8 minutes, so that paint mixing sagging during cross-region spraying is avoided, the spraying efficiency is lower, workers need to wear a gas mask in a closed spraying room, and health problems are easy to cause due to long-term contact with volatile paint. When the automatic spraying is carried out, the space posture of the special-shaped plate cannot be dynamically adjusted after the special-shaped plate is fixed by a mechanical clamp, the paint (especially water paint and high-solid paint) can flow along an inclined area easily under the action of gravity, taking an engine cover arc panel as an example, when the area below the cambered surface (the inclined angle is 15-20 ℃) of the fixed tool is sprayed, if the spraying thickness is required to reach 40-50 mu m (anti-corrosion requirement), the paint can form 'effusion' at the lowest point of the cambered surface, the local thickness is more than 80 mu m, the thickness above the cambered surface is reduced to 25-30 mu m due to the self-flow of the paint, the thickness difference is 50-55 mu m, the paint can flow downwards along a vertical plane after the vertical bending surface of a rear tail gate bent plate is sprayed, the length of the 'sagging mark' is formed at the bending part and reaches 3-5mm, the subsequent manual polishing repair is required, the process cost is increased, the coating integrity is easily damaged after polishing, and the anti-corrosion performance is reduced. The automatic spraying device comprises a plate, a mechanical arm, a silica gel gripper, a back tail door bending plate, a horizontal plane plate, a panel, a permanent indentation and a conveyor belt, wherein the plate is required to be grabbed by the mechanical arm or conveyed to the drying station by the conveyor belt, the paint is in an uncured state and is extremely easy to damage due to contact, when the mechanical arm grabs, if a grabbing point is an edge of an engine cover cambered surface, the silica gel gripper is easy to contact with the uncured paint to cause 'gripper mark', if the grabbing point is a horizontal plane plate of the back tail door bending plate, the gripper pressure is easy to cause the panel to be partially depressed by the paint to form the permanent indentation, and when the conveyor belt conveys, the conveyor belt is easy to vibrate or adhere to impurities, so that 'scratches' or 'pits' are formed on the surface of the coating. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides an omnibearing spraying device for special-shaped parts of an automobile, which is used for solving the defects of the prior art. The invention aims at realizing the technical scheme that the omnibearing spraying device for the automobile special-shaped parts comprises a spraying workbench, a multi-angle adjusting mechanism, a plate die and a spraying mechanism, wherein the multi-angle adjusting mechanism is arranged on the spraying workbench and comprises a transverse deflection plate, a longitudinal deflection plate and a negative pressure tool assembly, the transverse deflection plate is rotatably arranged on the spraying workbench, the longitudinal deflection plate is rotatably arranged on the transverse deflection plate, the deflection axis of the transverse deflection plate and the deflection axis of the longitudinal deflection plate are both horizontally arranged, the deflection axis of the transverse deflection plate is perpendicular to the deflection axis of the longitudinal deflection plate, the negative pressure tool assembly comprises a plurality of negative pressure columns, the negative pressure columns are linearly arranged on the longitudinal plate, one end of the negative pressure column far away from the longitudinal deflection plate is provided with a plurality of negative pressure holes, the plate die is sleeved on the negative