Metal workpiece spraying equipment and spraying method

Abstract

The invention relates to the technical field of spraying equipment, and discloses metal workpiece spraying equipment and a spraying method.The metal workpiece spraying equipment comprises a base, and a clamping mechanism is fixedly connected to the top of the base; the spraying mechanism comprises a mounting plate, a spray gun, a mounting frame and two detection wheels, a mounting seat is fixedly mounted at the bottom of the spray gun, the mounting seat is hinged to the top of the mounting plate, a pressure sensor is fixedly connected to the top of the mounting frame, and the driving mechanism comprises a moving plate, a lifting frame, a rotating shaft and two fixing plates. The device is reasonable in design, outer surface track information of a metal workpiece can be obtained and recorded through the arranged spraying mechanism under cooperation of a detection wheel, a controller and an electric push rod, storage information of the controller is called in the spraying process for spraying control, it is guaranteed that a spraying gun and the metal workpiece keep a constant spraying angle and distance, and the spraying efficiency is improved. And the spraying quality is improved, and the device is suitable for workpieces with irregular shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying equipment, in particular to a metal workpiece spraying equipment and spraying method. BACKGROUND

[0002] In the existing production technology, in order to improve the surface performance of the metal workpiece, the surface of the metal workpiece is usually sprayed by the spraying equipment.

[0003] The conventional spraying equipment is usually only suitable for spraying the metal workpiece of the conventional type such as plane and circular arc surface, and it is difficult to uniformly spray the metal workpiece surface with irregular surface shape or even certain recess, and there is a lack in the recess of the metal, resulting in uneven spraying. SUMMARY

[0004] The purpose of the present application is to solve the problem of uneven spraying of the conventional spraying equipment for the metal workpiece with irregular surface shape, and to provide a metal workpiece spraying equipment and spraying method.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: A metal workpiece spraying equipment, comprising: A base, the top of the base is fixedly connected with a clamping mechanism; A spraying mechanism, the spraying mechanism comprises a mounting plate, a spray gun, a mounting bracket and two detection wheels, the bottom of the spray gun is fixedly provided with a mounting seat, the mounting seat is hinged to the top of the mounting plate, the top of the mounting bracket is fixedly connected with a pressure sensor, the top of the pressure sensor is fixedly connected with a partition plate, the partition plate is hinged to the bottom of the mounting plate, two connecting shafts are rotatably installed in the mounting bracket, and two detection wheels are respectively fixedly sleeved on the outer sides of the corresponding connecting shafts; A driving mechanism for driving the mounting plate to rotate and move, the driving mechanism comprises a moving plate, a lifting frame, a rotating shaft and two fixed plates, two fixed plates are respectively fixedly connected to the top of the base on both sides, and the same screw rod is rotatably connected between the two fixed plates, the moving plate is threadedly sleeved on the outer side of the screw rod, and the bottom of the moving plate is fixedly connected with a first electric push rod on both sides, the output ends of the two first electric push rods are respectively fixedly connected to the two sides of the lifting frame, and the rotating shaft is rotatably connected in the lifting frame, and the mounting plate is fixedly sleeved on the outer side of the rotating shaft.

[0006] Preferably, the front side of the mounting frame is rotationally connected with a rotating drum, the outer side of the rotating drum is fixedly sleeved with a driven pulley, the outer side of one of the two connecting shafts is fixedly sleeved with a driving pulley, the same belt is drivingly installed on the driving pulley and the driven pulley, the outer side of the other connecting shaft is provided with a plurality of limiting grooves, a limiting strip is slidingly installed in each of the plurality of limiting grooves, the outer side of the plurality of limiting strips is fixedly installed with the same sleeve, one side of the rotating drum is integrally formed with a plurality of arc-shaped protrusions, one side of the sleeve is provided with an arc-shaped groove matched with the arc-shaped protrusions, so that the rotating drum can push the sleeve to move away from the mounting frame when rotating relative to the sleeve. And one side of the mounting frame is fixedly connected with a mounting rod, the other end of the mounting rod is fixedly connected with a control button, the sleeve can touch the control button when moving away from the mounting, the top of the base is fixedly installed with a controller, and the controller can receive the pressing information of the control button.

[0007] Preferably, the clamping mechanism comprises two vertical plates and two clamping discs, a plurality of clamping columns are fixedly connected to the side of each of the two clamping discs away from each other, the bottom of the vertical plate is fixedly connected with a sliding plate, and the top of the base is provided with a sliding groove on both sides, the two sliding plates are slidingly connected in the corresponding sliding grooves respectively, and the side of each of the two vertical plates away from each other is fixedly connected with a circular shell, the inside of the circular shell is fixedly installed with a rotating motor, and the output shaft of the rotating motor is fixedly connected to the other side of the clamping disc.

[0008] Preferably, the other side of the clamping disc is fixedly connected with an annular guide seat, and the side of the circular shell is integrally formed with an annular guide plate, and the annular guide seat is rotationally sleeved on the outer side of the annular guide plate.

[0009] Preferably, the side of the base is fixedly installed with a clamping motor, a bidirectional screw rod is fixedly connected to the output shaft of the clamping motor, and the two sliding plates are threadedly connected to the outer side of the bidirectional screw rod respectively. Two guide rods are fixedly installed in the sliding groove, and the two sliding plates are slidingly sleeved on the outer side of the corresponding guide rods respectively.

[0010] Preferably, two fixing rods are fixedly connected between the two fixing plates, and the moving plate is slidingly sleeved on the outer side of the two fixing rods. One side of one of the fixing plates is fixedly connected with a driving motor, and one end of the lead screw is fixedly connected to the output shaft of the driving motor.

[0011] Preferably, one end of the rotating shaft is fixedly connected with a locking disc, a plurality of locking grooves are formed in the outer side of the locking disc, a slide hole is formed in one side of the mounting frame, a locking plate is slidably installed in the slide hole, the locking plate is movably clamped in the corresponding locking groove, the top of the locking plate is fixedly connected with a compression spring and an iron sheet, the top end of the compression spring is fixedly connected with a side plate, the side plate is fixedly connected to the side wall of the mounting frame, and an electromagnet is fixedly connected to the top inner wall of the slide hole; Two vertical rods are fixedly installed in the slide hole, and the locking plate is slidably sleeved on the outer sides of the two vertical rods. A switching motor is fixedly installed on one side of the lifting frame, and the other end of the rotating shaft is fixedly connected to the output shaft of the switching motor.

[0012] Preferably, the bottom of the mounting plate is rotatably connected with a second electric push rod on both sides, the output end of the electric push rod is hingedly connected to the top of the partition plate, the top of the mounting plate is rotatably connected with a third electric push rod on both sides, and the output end of the third electric push rod is hingedly connected to the bottom of the mounting seat. The bottom of the partition plate is fixedly connected with two guide plates, and the top of the mounting frame is provided with two guide grooves, and the two guide plates are slidably connected in the corresponding guide grooves.

[0013] Preferably, the front inner wall of the sleeve is fixedly connected with a connecting spring, and the other end of the connecting spring is fixedly connected with the corresponding connecting shaft.

[0014] The application also provides a metal workpiece spraying method, comprising the following steps: S1: the metal workpiece is placed between the two clamping discs, then the clamping motor is started to drive the bidirectional screw to rotate, the bidirectional screw drives the two sliding plates to approach each other through thread cooperation with the two sliding plates, the two sliding plates drive the two circular shells to approach each other through the corresponding vertical plates, and the two circular shells drive the two clamping plates to approach each other, so that the clamping columns are abutted on the surface of the metal workpiece to be aligned and clamped and fixed; S2: Start the first electric push rod to drive the lifting frame, mounting plate, mounting frame and detection wheel to move downward, rotate the mounting frame by starting the second electric push rod, so that the detection wheel abuts against the surface of the workpiece, the pressure sensor senses the pressure received by the partition plate, so as to ensure the adhesion of the detection wheel and the workpiece, then start the two rotary motors to drive the two clamping discs to rotate synchronously, the two clamping discs drive the workpiece to rotate, and the pressure signal received by the pressure sensor in the workpiece rotating process is controlled in real time to make the detection and the surface of the workpiece keep adhering, and the running data is transmitted to the controller during the operation of the first electric push rod and the second electric push rod, and the controller records, when the two detection wheels keep adhering to the workpiece, the two detection wheels rotate synchronously, so that the two connecting shafts rotate synchronously, and the driving pulley and the driven pulley rotate to drive the rotating drum to rotate synchronously, at this time the rotating drum rotates synchronously with the sleeve and the connecting shaft inside it, when the rotating speed of one of the detection wheels is inconsistent, the detection wheel and the sleeve rotate relatively, the detection wheel pushes the sleeve to move through the abutment of the arc protrusion and the arc groove, and the sleeve extrudes the control button, the control button transmits the pressing information to the controller, and the controller controls the rotary motor to stop working, so as to timely troubleshoot problems; S3: When the detection disc rotates a whole circle, reset the mounting plate and the mounting frame by controlling the first electric push rod and the second electric push rod, energize the electromagnet to generate magnetic attraction to magnetically attract the iron sheet and drive the locking plate to move upward, so that the locking plate is out of the locking groove, start the switching motor to drive the rotating shaft to rotate, the rotating shaft drives the mounting plate to rotate, so that the spray gun is aimed at the workpiece and adjusted to the appropriate spraying angle, then the electromagnet is de-energized, the locking plate is reset under the action of gravity and the compression spring and clamped into the locking groove, the locking disc is locked, so that the rotation of the rotating shaft and the mounting plate is locked; S4: Start the rotary motor to drive the workpiece to rotate, start the spray gun to spray the workpiece, and at the same time control the first electric push rod and the third push rod according to the operation data recorded, so that the operation process of the first electric push rod is consistent with the first electric push rod operation data recorded before, and the operation process of the third electric push rod is consistent with the operation data of the second electric push rod recorded before, so that the welding gun can keep the distance and angle relative to the workpiece, and perform smooth and uniform spraying work.

[0015] Compared with the prior art, the metal workpiece spraying device and spraying method provided in the application have the following beneficial effects: (1) The cooperation of the clamping motor, bidirectional screw, sliding plate, vertical plate, rotary motor and clamping disc facilitates automatic clamping of the metal workpiece, and can drive the metal workpiece to rotate, so as to improve the welding efficiency; (2) The spraying mechanism can obtain the track information of the outer surface of the metal workpiece under the cooperation of the detection wheel, the controller and the electric push rod, record and call the storage information of the controller for spraying control in the spraying process, ensure the constant spraying angle and distance between the spray gun and the metal workpiece, improve the spraying quality, and be suitable for irregularly shaped workpieces; (3) The cooperation of the rotating drum, the sleeve, the control button and the pressure sensor can stop in time when the metal workpiece surface is detected and recorded and an accident occurs, and ensure the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective structural schematic view of the metal workpiece spraying equipment according to the present application is provided; Figure 2 A sectional structural schematic view of the metal workpiece spraying equipment according to the present application is provided; Figure 3 A partial enlarged view of A part in Figure 2 ; Figure 4 A perspective structural schematic view of the spraying mechanism according to the present application is provided; Figure 5 A sectional structural schematic view of the spraying mechanism according to the present application is provided; Figure 6 A partial enlarged view of A part in Figure 5 ; Figure 7 A partial enlarged view of A part in Figure 5 ; Figure 8 A partial perspective structural schematic view of the spraying mechanism according to the present application is provided; Figure 9 A top sectional structural schematic view of the spraying mechanism according to the present application is provided; Figure 10 A perspective structural schematic view of the rotating drum, the sleeve and the connecting shaft according to the present application is provided; Figure 11 Another perspective structural schematic view of the rotating drum and the sleeve according to the present application is provided.

[0017] In the figure: 1, base; 101, fixed plate; 102, fixed rod; 103, screw rod; 104, driving motor; 2, controller; 3, clamping disc; 301, clamping column; 302, annular guide seat; 303, rotary motor; 304, round shell; 4, vertical plate; 401, sliding plate; 402, bidirectional screw rod; 403, clamping motor; 5, moving plate; 6, lifting frame; 601, first electric push rod; 7, mounting plate; 701, rotating shaft; 702, switching motor; 8, spray gun; 801, mounting seat; 802, third electric push rod; 9, mounting frame; 901, pressure sensor; 10, detection wheel; 11, locking disc; 12, partition plate; 13, driving pulley; 14, driven pulley; 15, rotating drum; 16, sleeve; 1601, limiting strip; 17, control button; 18, connecting shaft; 1801, limiting groove; 19, second electric push rod; 20, connecting spring; 21, locking plate; 22, iron sheet; 23, compression spring; 24, electromagnet. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0019] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] Reference Figures 1-11 A metal workpiece spraying device, comprising: A base 1, the top of the base 1 is fixedly connected with a clamping mechanism; A spraying mechanism, the spraying mechanism comprises a mounting plate 7, a spray gun 8, a mounting frame 9 and two detection wheels 10, the bottom of the spray gun 8 is fixedly installed with a mounting seat 801, the mounting seat 801 is hinged to the top of the mounting plate 7, the top of the mounting frame 9 is fixedly connected with a pressure sensor 901, the top of the pressure sensor 901 is fixedly connected with a partition plate 12, the partition plate 12 is hinged to the bottom of the mounting plate 7, two connecting shafts 18 are rotatably installed in the mounting frame 9, and the two detection wheels 10 are respectively fixedly sleeved on the outer sides of the corresponding connecting shafts 18; A driving mechanism is arranged to drive the mounting plate 7 to rotate and move, and the driving mechanism comprises the moving plate 5, the lifting frame 6, the rotating shaft 701 and two fixed plates 101, the two fixed plates 101 are fixedly connected to the top of the base 1 on both sides, a same lead screw 103 is rotatably connected between the two fixed plates 101, the moving plate 5 is threadedly sleeved on the outside of the lead screw 103, the first electric push rods 601 are fixedly connected to the bottom of the moving plate 5 on both sides, the output ends of the two first electric push rods 601 are fixedly connected to the two sides of the lifting frame 6, and the rotating shaft 701 is rotatably connected in the lifting frame 6, and the mounting plate 7 is fixedly sleeved on the outside of the rotating shaft 701.

[0021] In the embodiment, the front side of the mounting frame 9 is rotatably connected with a rotating drum 15, the outside of the rotating drum 15 is fixedly sleeved with a driven pulley 14, the outside of one of the two connecting shafts 18 is fixedly sleeved with a driving pulley 13, the driving pulley 13 and the driven pulley 14 are drivingly connected with a same belt, the outside of the other connecting shaft 18 is provided with a plurality of limiting grooves 1801, a plurality of limiting strips 1601 are slidingly installed in the plurality of limiting grooves 1801, a same sleeve 16 is fixedly installed on the outside of the plurality of limiting strips 1601, a plurality of arc-shaped protrusions are integrally formed on one side of the rotating drum 15, an arc-shaped groove matched with the arc-shaped protrusions is formed on one side of the sleeve 16, so that the rotating drum 15 can drive the sleeve 16 to move away from the mounting frame 9 when the rotating drum 15 rotates relative to the sleeve 16; A mounting rod is fixedly connected to one side of the mounting frame 9, a control button 17 is fixedly connected to the other end of the mounting rod, the sleeve 16 can touch the control button 17 when the sleeve 16 moves away from the mounting frame 9, and a controller 2 is fixedly installed on the top of the base 1 and can receive the pressing information of the control button 17.

[0022] In the embodiment, the clamping mechanism comprises the two vertical plates 4 and the two clamping discs 3, a plurality of clamping columns 301 are fixedly connected to the side of each of the two clamping discs 3 away from each other, the bottom of each of the two vertical plates 4 is fixedly connected with a sliding plate 401, the top of the base 1 is provided with a sliding groove on each side, the two sliding plates 401 are slidingly connected in the corresponding sliding grooves, a circular shell 304 is fixedly connected to the side of each of the two vertical plates 4 away from each other, a rotating motor 303 is fixedly installed in the circular shell 304, and the output shaft of the rotating motor 303 is fixedly connected to the other side of the clamping disc 3, so as to facilitate the rotation of the clamping disc 3.

[0023] In the embodiment, the other side of the clamping disc 3 is fixedly connected with an annular guide seat 302, the side of the circular shell 304 is integrally formed with an annular guide plate, and the annular guide seat 302 is rotatably sleeved on the outside of the annular guide plate to rotate and position the clamping disc 3.

[0024] In the embodiment, one side of the base 1 is fixedly provided with a clamping motor 403, a bidirectional screw rod 402 is fixedly connected to the output shaft of the clamping motor 403, and two sliding plates 401 are threadedly connected to the outer sides of the bidirectional screw rod 402, so that the rotation of the bidirectional screw rod 402 is conveniently controlled. Two guide rods are fixedly arranged in the chute, and the two sliding plates 401 are slidingly sleeved on the outer sides of the corresponding guide rods, so that the sliding plates 401 are guided.

[0025] In the embodiment, two fixed rods 102 are fixedly connected between the two fixed plates 101, and the moving plate 5 is slidingly sleeved on the outer sides of the two fixed rods 102, so that the moving plate 5 is guided to move transversely. One side of one of the fixed plates 101 is fixedly connected with a driving motor 104, and one end of the screw rod 103 is fixedly connected to the output shaft of the driving motor 104.

[0026] In the embodiment, one end of the rotating shaft 701 is fixedly connected with a locking disc 11, a plurality of locking grooves are formed in the outer side of the locking disc 11, a sliding hole is formed in one side of the mounting bracket 9, a locking plate 21 is slidingly arranged in the sliding hole, the locking plate 21 is movably clamped in the corresponding locking groove, the top of the locking plate 21 is fixedly connected with a compression spring 23 and an iron sheet 22, the top end of the compression spring 23 is fixedly connected with a side plate, the side plate is fixedly connected to the side wall of the mounting bracket 9, and an electromagnet 24 is fixedly connected to the top inner wall of the sliding hole; Two vertical rods are fixedly arranged in the sliding hole, and the locking plate 21 is slidingly sleeved on the outer sides of the two vertical rods, so that the locking plate 21 is guided. One side of the lifting frame 6 is fixedly provided with a switching motor 702, and the other end of the rotating shaft 701 is fixedly connected to the output shaft of the switching motor 702, so as to conveniently control the rotation of the rotating shaft 701.

[0027] In the embodiment, the second electric push rod 19 is rotatably connected to the bottom of the mounting plate 7, the output end of the electric push rod is hingedly connected to the top of the partition plate 12, the third electric push rod 802 is rotatably connected to the top of the mounting plate 7, and the output end of the third electric push rod 802 is hingedly connected to the bottom of the mounting seat 801. The bottom of the partition plate 12 is fixedly connected with two guide plates, and the top of the mounting bracket 9 is provided with two guide grooves, and the two guide plates are slidingly connected in the corresponding guide grooves.

[0028] In the embodiment, the connecting spring 20 is fixedly connected to the inner wall of the front side of the sleeve 16, and the other end of the connecting spring 20 is fixedly connected with the corresponding connecting shaft 18.

[0029] The application also provides a metal workpiece spraying method, which comprises the following steps: S1: the metal workpiece is placed between the two clamping discs 3, and then the clamping motor 403 is started to drive the bidirectional screw rod 402 to rotate. The bidirectional screw rod 402 drives the two sliding plates 401 to move towards each other through the thread cooperation. The two sliding plates 401 drive the two circular shells 304 to move towards each other through the corresponding vertical plates 4. The two circular shells 304 drive the two clamping plates to move towards each other, so that the clamping columns 301 abut against the surface of the metal workpiece to align and clamp and fix; S2: the first electric push rod 601 is started to drive the lifting frame 6, the mounting plate 7, the mounting frame 9 and the detection wheel 10 to move downwards. The second electric push rod 19 is started to drive the mounting frame 9 to rotate, so that the detection wheel 10 abuts against the surface of the workpiece. The pressure sensor 901 senses the pressure received by the partition plate 12, so as to ensure the adhesion degree of the detection wheel 10 to the workpiece. Then the two rotary motors 303 are started to drive the two clamping discs 3 to rotate synchronously. The two clamping discs 3 drive the workpiece to rotate. The pressure signal received by the pressure sensor 901 is used to control the first electric push rod 601 and the second electric push rod 19 in real time during the rotation of the workpiece, so that the detection wheel 10 is kept adhered to the surface of the workpiece. The running data is transmitted to the controller 2 during the operation of the first electric push rod 601 and the second electric push rod 19, and is recorded by the controller 2. When the two detection wheels 10 are kept adhered to the workpiece, the two detection wheels 10 rotate synchronously, so that the two connecting shafts 18 rotate synchronously. The driving pulley 13 and the driven pulley 14 are used to drive the rotating drum 15 to rotate synchronously. At this time, the rotating drum 15 rotates synchronously with the sleeve 16 and the connecting shaft 18 inside the sleeve 16. When the rotation speed of one of the detection wheels 10 is inconsistent, the rotating drum and the sleeve 16 rotate relatively. The rotating drum pushes the sleeve 16 to move through the abutment of the arc protrusion and the arc groove, and the sleeve 16 extrudes the control button 17. The control button 17 transmits the pressing information to the controller 2. The controller 2 controls the rotary motor 303 to stop rotating, so as to timely troubleshoot the problem; S3: when the detection disc rotates one full circle, the first electric push rod 601 and the second electric push rod 19 are controlled to drive the mounting plate 7 and the mounting frame 9 to reset. The electromagnet 24 is energized to generate a magnetic attraction force, magnetically attract the iron sheet 22 and drive the locking plate 21 to move upwards, so that the locking plate 21 is separated from the locking groove. The switching motor 702 is started to drive the rotating shaft 701 to rotate, so that the spray gun 8 is aligned with the workpiece and adjusted to a suitable spraying angle. Then the electromagnet 24 is de-energized. The locking plate 21 is reset and clamped into the locking groove under the action of gravity and the compression spring 23, and the locking disc 11 is locked, so that the rotation of the rotating shaft 701 and the mounting plate 7 is locked; S4: start the rotating motor 303 to drive the workpiece to rotate, start the spray gun 8 to spray the workpiece, and at the same time, control the first electric push rod 601 and the third push rod according to the operation data recorded in the control record, so that the operation process of the first electric push rod 601 is consistent with the first electric push rod 601 operation data recorded before, and the operation process of the third electric push rod 802 is consistent with the operation data of the second electric push rod 19 recorded before, so that the welding gun can keep the distance and angle relative to the workpiece, and perform smooth and uniform spraying work.

[0030] In use, the metal workpiece is clamped automatically by the cooperation of the clamping motor 403, the bidirectional screw rod 402, the sliding plate 401, the vertical plate 4, the rotating motor 303 and the clamping disc 3, and the metal workpiece can be driven to rotate to improve the welding efficiency. The spraying mechanism can obtain the outer surface track information of the metal workpiece under the cooperation of the detection wheel 10, the controller 2 and the electric push rod, and record the information. The stored information of the controller 2 is called during the spraying process to control the spraying, so that the spray gun 8 and the metal workpiece can keep a constant spraying angle and distance, the spraying quality is improved, and the device is suitable for workpieces with irregular shapes. When an accident occurs during the detection and recording of the metal workpiece surface, the cooperation of the rotating drum 15, the sleeve 16, the control button 17 and the pressure sensor 901 can stop in time, so as to ensure the accuracy of the detection result.

[0031] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection mode in the prior art, which will not be described in detail here.

Claims

1. A metal workpiece spraying apparatus, characterized by, Include: Base (1), the top of the base (1) is fixedly connected with a clamping mechanism; Spraying mechanism, spraying mechanism includes mounting plate (7), spray gun (8), mounting bracket (9) and two detection wheels (10), the bottom of the spray gun (8) is fixedly installed with mounting seat (801), the mounting seat (801) is hinged on the top of the mounting plate (7), the top of the mounting bracket (9) is fixedly connected with pressure sensor (901), the top of the pressure sensor (901) is fixedly connected with partition (12), the partition (12) is hinged on the bottom of the mounting plate (7), two connecting shafts (18) are rotatably installed in the mounting bracket (9), two detection wheels (10) are respectively fixedly sleeved on the outer side of the corresponding connecting shaft (18); Driving mechanism, for driving the mounting plate (7) to rotate and move, the driving mechanism includes, moving plate (5), lifting frame (6), rotating shaft (701) and two fixed plates (101), two fixed plates (101) are respectively fixedly connected on both sides of the top of the base (1), and the same screw rod (103) is rotatably connected between the two fixed plates (101), the moving plate (5) is threadedly sleeved on the outer side of the screw rod (103), and the bottom of the moving plate (5) is fixedly connected with first electric push rod (601) on the front and back sides, the output ends of two first electric push rods (601) are respectively fixedly connected on both sides of the lifting frame (6), and the rotating shaft (701) is rotatably connected in the lifting frame (6), the mounting plate (7) is fixedly sleeved on the outer side of the rotating shaft (701).

2. A metal workpiece spraying apparatus according to claim 1, wherein The front side of the mounting bracket (9) is rotatably connected with a rotating cylinder (15), the outer side of the rotating cylinder (15) is fixedly sleeved with a driven pulley (14), the outer side of one of the two connecting shafts (18) is fixedly sleeved with a driving pulley (13), the driving pulley (13) and the driven pulley (14) are drivingly installed with the same belt, the outer side of the other connecting shaft (18) is provided with a plurality of limiting grooves (1801), a plurality of limiting grooves (1801) are slidingly installed with a limiting strip (1601), the outer side of the plurality of limiting strips (1601) is fixedly installed with the same sleeve (16), one side of the rotating cylinder (15) is integrally formed with a plurality of arc protrusions, one side of the sleeve (16) is provided with an arc-shaped groove matched with the arc-shaped protrusions, so that the rotating cylinder (15) can push the sleeve (16) to move away from the mounting bracket (9) when rotating relative to the sleeve (16); And one side of the mounting bracket (9) is fixedly connected with a mounting rod, the other end of the mounting rod is fixedly connected with a control button (17), the sleeve (16) can touch the control button (17) when being installed, the top of the base (1) is fixedly installed with a controller (2), the controller (2) can receive the pressing information of the control button (17).

3. A metal workpiece spraying apparatus according to claim 1, wherein The clamping mechanism comprises two vertical plates (4) and two clamping discs (3), the two clamping discs (3) are fixedly connected with a plurality of clamping columns (301) on the side close to each other, the bottom of the vertical plate (4) is fixedly connected with a sliding plate (401), the top of the base (1) is provided with a sliding groove on both sides, the two sliding plates (401) are respectively slidably connected in the corresponding sliding grooves, the side close to each other of the two vertical plates (4) is fixedly connected with a circular shell (304), the inside of the circular shell (304) is fixedly installed with a rotating motor (303), and the output shaft of the rotating motor (303) is fixedly connected with the other side of the clamping disc (3).

4. A metal workpiece spraying apparatus according to claim 3, wherein The other side of the clamping disc (3) is fixedly connected with an annular guide seat (302), and the side of the circular shell (304) is integrally formed with an annular guide plate.

5. A metal workpiece spraying apparatus according to claim 3, wherein One side of the base (1) is fixedly installed with a clamping motor (403), the output shaft of the clamping motor (403) is fixedly connected with a bidirectional screw rod (402), and the two sliding plates (401) are respectively threadedly connected with the outer sides of the bidirectional screw rods (402). Two guide rods are fixedly installed in the sliding groove, and the two sliding plates (401) are respectively slidably connected with the outer sides of the corresponding guide rods.

6. A metal workpiece spray painting apparatus according to claim 1, wherein Two fixed rods (102) are fixedly connected between the two fixed plates (101), and the moving plate (5) is slidably connected with the outer sides of the two fixed rods (102). One side of one of the fixed plates (101) is fixedly connected with a driving motor (104), and one end of the screw rod (103) is fixedly connected with the output shaft of the driving motor (104).

7. A metal workpiece spray painting apparatus according to claim 1, wherein One end of the rotating shaft (701) is fixedly connected with a locking disc (11), a plurality of locking grooves are formed in the outer side of the locking disc (11), a sliding hole is formed in one side of the mounting frame (9), a locking plate (21) is slidably installed in the sliding hole, the locking plate (21) is movably clamped in the corresponding locking groove, the top of the locking plate (21) is fixedly connected with a compression spring (23) and an iron sheet (22), the top end of the compression spring (23) is fixedly connected with a side plate, the side plate is fixedly connected with the side wall of the mounting frame (9), and an electromagnet (24) is fixedly connected with the top inner wall of the sliding hole; Two vertical rods are fixedly installed in the sliding hole, and the locking plate (21) is slidably connected with the outer sides of the two vertical rods. One side of the lifting frame (6) is fixedly installed with a switching motor (702), and the other end of the rotating shaft (701) is fixedly connected with the output shaft of the switching motor (702).

8. A metal workpiece spray painting apparatus according to claim 1, wherein The bottom of the mounting plate (7) is rotatably connected with a second electric push rod (19) on both sides, the output end of the electric push rod is hingedly connected with the top of the partition plate (12), the top of the mounting plate (7) is rotatably connected with a third electric push rod (802) on both sides, and the output end of the third electric push rod (802) is hingedly connected with the bottom of the mounting seat (801). The bottom of the partition plate (12) is fixedly connected with two guide plates, the top of the mounting frame (9) is provided with two guide grooves, and the two guide plates are slidably connected in the corresponding guide grooves.

9. A metal workpiece spray painting apparatus according to claim 2, wherein The front side inner wall of the sleeve (16) is fixedly connected with a connecting spring (20), and the other end of the connecting spring (20) is fixedly connected with the corresponding connecting shaft (18).

10. A method of spraying a metal workpiece, characterized by, The method comprises the following steps: S1: the metal workpiece is placed between the two clamping discs (3), and then the clamping motor (403) is started to drive the bidirectional screw rod (402) to rotate, the bidirectional screw rod (402) drives the two sliding plates (401) to move close to each other through thread cooperation with the two sliding plates (401), the two sliding plates (401) drive the two circular shells (304) to move close to each other through the corresponding vertical plates (4), and the two circular shells (304) drive the two clamping plates to move close to each other, so that the clamping column (301) is abutted on the surface of the metal workpiece and is aligned for clamping and fixing; S2: the first electric push rod (601) is started to drive the lifting frame (6), the mounting plate (7), the mounting frame (9) and the detection wheel (10) to move downward, the mounting frame (9) is driven to rotate by starting the second electric push rod (19), so that the detection wheel (10) is abutted on the surface of the workpiece, the pressure sensor (901) senses the pressure received by the partition plate (12), so as to ensure the adhesion degree of the detection wheel (10) and the workpiece, then the two rotating motors (303) are started to drive the two clamping discs (3) to rotate synchronously, the two clamping discs (3) drive the workpiece to rotate, and the pressure signal received by the pressure sensor (901) controls the first electric push rod (601) and the second electric push rod (19) in real time during the rotation of the workpiece, so that the detection and the workpiece surface remain adhered, and the running data is transmitted to the controller (2) during the operation of the first electric push rod (601) and the second electric push rod (19), and is recorded by the controller (2), when the two detection wheels (10) remain adhered to the workpiece, the two detection wheels (10) rotate synchronously, so that the two connecting shafts (18) rotate synchronously, and the rotating drum (15) is driven to rotate synchronously by the rotation of the driving pulley (13) and the driven pulley (14), at this time, the rotating drum (15), the sleeve (16) and the connecting shaft (18) in the sleeve (16) rotate synchronously, when the rotation speed of one of the detection wheels (10) is inconsistent, the rotating drum and the sleeve (16) rotate relatively, the rotating drum pushes the sleeve (16) to move through the abutment of the arc protrusion and the arc groove, and the sleeve (16) extrudes the control button (17), the control button (17) transmits the pressing information to the controller (2), and the controller (2) controls the rotating motor (303) to stop rotating, so as to timely troubleshoot the problem. S3: When the detection disc rotates a whole circle, the first electric push rod (601) and the second electric push rod (19) are controlled to drive the mounting plate (7) and the mounting frame (9) to reset. The electromagnet (24) is energized to generate a magnetic attraction force, the iron sheet (22) is magnetically attracted, and the locking plate (21) is driven to move upward, so that the locking plate (21) is separated from the locking groove. The switching motor (702) is started to drive the rotating shaft (701) to rotate, the rotating shaft (701) drives the mounting plate (7) to rotate, so that the spray gun (8) is aligned with the workpiece, and is adjusted to a suitable spraying angle. Then the electromagnet (24) is de-energized, the locking plate (21) is reset under the action of gravity and the compression spring (23) and is clamped into the locking groove, the locking disc (11) is locked, and the rotation of the rotating shaft (701) and the mounting plate (7) is locked. S4: The rotating motor (303) is started to drive the workpiece to rotate, the spray gun (8) is started to spray the workpiece, and the first electric push rod (601) and the third push rod are controlled according to the operation data recorded, so that the operation process of the first electric push rod (601) is consistent with the operation data of the first electric push rod (601) recorded before, and the operation process of the third electric push rod (802) is consistent with the operation data of the second electric push rod (19) recorded before, so that the welding gun can maintain a distance and an angle relative to the workpiece, and can be smoothly and uniformly sprayed.

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