Automatic aluminum spraying device for resistor disc

Abstract

The invention relates to the technical field of resistor disc manufacturing, in particular to an automatic aluminum spraying device for resistor discs, which comprises a multi-station turntable unit, a turnover unit and two groups of spraying units, the multi-station turntable unit comprises a base, a driving motor, a mounting disc and a plurality of limiting assemblies, the driving motor is mounted on the base, the mounting disc is coaxially mounted on the driving motor, and the limiting assemblies are mounted on the mounting disc; the limiting assembly comprises a supporting arm, a dustproof barrel and a fixing piece. One end of the supporting arm is connected with the mounting disc, the other end of the supporting arm is connected with the dustproof barrel, the spraying unit comprises a spraying assembly and a recycling assembly, the spraying assembly comprises a spraying support, a spraying head, a protective cover and a first lifting air cylinder, and the recycling assembly comprises an air draft support, a dust suction barrel, a second lifting air cylinder and an air draft part; according to the spraying unit, the resistor disc can be automatically overturned conveniently, spraying of the two opposite sides of the resistor disc is achieved, meanwhile, aluminum powder escaping to the peripheral area of the spraying unit can be collected conveniently in the resistor disc spraying process, and waste of the aluminum powder in the zinc oxide resistor disc spraying operation process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of resistor manufacturing, and in particular to an automatic aluminum spraying device for resistors. Background Art

[0002] The resistor is one of the core components of the lightning arrester. The aluminum coating of the resistor is a key factor affecting its electrical performance. When coating the aluminum layer on the zinc oxide resistor, high-purity aluminum is heated to a molten state and then sprayed onto the surface of the zinc oxide resistor. A layer of aluminum electrode is sprayed on the upper and lower surfaces of the zinc oxide resistor to form an aluminum coating. This effectively isolates the resistor from the external environment, prevents corrosive media from contacting the resistor, and enhances the durability and conductivity of the resistor.

[0003] In the prior art, when spraying a zinc oxide resistor, first, a worker sets a rubber sleeve on the outer periphery of the zinc oxide resistor. Then, the worker places the sleeved zinc oxide resistor on a turntable or conveyor belt, and conveys the zinc oxide resistor to the lower end of a spray gun through the turntable or conveyor belt. Then, one side of the zinc oxide resistor is sprayed with the spray gun. After the spraying of one side of the zinc oxide resistor is completed, the worker turns over the zinc oxide resistor with the rubber sleeve. The turntable or conveyor belt drives the turned-over zinc oxide resistor to the lower end of another spray gun, and then the other side of the zinc oxide resistor is sprayed with the other spray gun. After the spraying of the zinc oxide resistor is completed, the worker takes out the zinc oxide resistor after double-sided spraying.

[0004] During the spraying process of the above-mentioned zinc oxide resistor, aluminum powder is sprayed onto one side of the zinc oxide resistor through a spray gun. During the spraying process of the zinc oxide resistor, part of the aluminum powder escapes into the surrounding working area, resulting in a large amount of aluminum powder waste. Summary of the Invention

[0005] In order to reduce the waste of aluminum powder during the spraying operation of zinc oxide resistors, the present application provides an automatic aluminum spraying device for resistors.

[0006] This application provides an automatic aluminum spraying device for resistor sheets, which adopts the following technical solutions: An automatic aluminum spraying device for a resistor sheet comprises a multi-station turntable unit, a flip unit, and two groups of spraying units, wherein one of the spraying units, the flip unit, and the other group of spraying units are sequentially arranged along the circumferential direction of the multi-station turntable unit; The multi-station turntable unit includes a base, a drive motor, a mounting plate and a plurality of limit assemblies; The driving motor is mounted on the base; The mounting plate is coaxially mounted on the output shaft of the driving motor, and the mounting plate is rotatably connected to the base; The limiting assembly is installed on the outer side wall of the mounting plate, and a plurality of the limiting assemblies are evenly distributed along the circumferential direction of the mounting plate; The limiting assembly includes a support arm, a dustproof cylinder and a fixing piece; One end of the support arm is fixedly connected to the side wall of the mounting plate; the other end of the support arm is fixedly connected to the dustproof cylinder, and the dustproof cylinder is arranged axially parallel to the mounting plate; The fixing member is installed in the inner cavity of the dustproof cylinder, and the fixing member is used to limit the resistor; The spraying unit includes a spraying component and a recovery component; The spraying assembly includes a spraying support, a spray head, a protective cover and a first lifting cylinder; The first lifting cylinder is installed on the spraying support; The protective cover is mounted on the piston rod of the first lifting cylinder, and the dust collecting cylinder is coaxial with the dustproof cylinder; The nozzle is installed in the inner cavity of the protective cover, and the nozzle is used for spraying the resistor sheet; The recovery assembly includes an exhaust support, a dust collection cylinder, a second lifting cylinder, and an exhaust member; The second lifting cylinder is installed on the exhaust support; The dust collection cylinder is mounted on the piston rod of the second lifting cylinder, and the protective cover is coaxial with the dust collection cylinder; The exhaust member is used for collecting dust in the protective cover, dustproof cylinder and dust collection cylinder; The flipping unit is used for flipping the resistor sheet.

[0007] By adopting the above technical solution, when spraying the resistor sheet, first, fix the resistor sheet on the dustproof cylinder through the fixing part, and make the side of the resistor sheet to be sprayed face upwards; then, adjust the driving motor, and the output shaft of the driving motor drives the mounting plate to rotate along the base, and the mounting plate drives multiple supporting arms to rotate synchronously, and the supporting arms drive the dustproof cylinder to move synchronously, and the dustproof cylinder drives the fixing part to move synchronously with the resistor sheet, and rotates until the central axis of the dustproof cylinder, the protective cover and the dust suction cylinder are on the same axis, and adjust the first lifting cylinder, and the first lifting cylinder drives the protective cover to descend, and descends until the lower end of the protective cover is sleeved on the upper end of the dustproof cylinder, and at the same time, adjust the second lifting cylinder, and the activity of the second lifting cylinder The plug rod drives the dust collection cylinder to rise, and when it rises to the upper end of the dust collection cylinder, it is sleeved on the lower end of the dustproof cylinder; then, the nozzle is adjusted to spray one side of the resistor piece through the nozzle, and at the same time, the exhaust piece is adjusted to collect dust from the protective cover, the dustproof cylinder and the inner cavity of the dust collection cylinder. After the resistor piece is sprayed, the first lifting cylinder and the second lifting cylinder are adjusted. The first lifting cylinder drives the protective cover to rise so that the protective cover is located above the dustproof cylinder, and the second lifting cylinder drives the dust collection cylinder to descend so that the dust collection cylinder is located below the dustproof cylinder; then, the driving motor is adjusted again, and the output shaft of the driving motor drives the mounting plate to rotate along the base, the mounting plate drives multiple support arms to rotate synchronously, and the support arms drive the dustproof cylinder to move synchronously. , the dust-proof cylinder drives the fixing part and the resistor piece to move synchronously. When the resistor piece is rotated to the flip unit, the flip unit is adjusted. The flip unit drives the resistor piece to flip so that the other side of the resistor piece to be sprayed faces upward; then the driving motor is adjusted. The output shaft of the driving motor drives the mounting plate to rotate along the base. The mounting plate drives multiple supporting arms to rotate synchronously. The supporting arms drive the dust-proof cylinder to move synchronously. The dust-proof cylinder drives the fixing part and the resistor piece to move synchronously. The central axes of the dust-proof cylinder, protective cover and dust collection cylinder in another group of spraying units are located on the same axis, and the first lifting cylinder and the second lifting cylinder are adjusted so that the lower end of the protective cover in the other group of spraying units is sleeved on the upper end of the dust-proof cylinder, and, The upper end of the dust collection cylinder is sleeved on the lower end of the dustproof cylinder, and the nozzles in the other group of spraying units spray the other side of the resistor. At the same time, the exhaust part is adjusted to collect dust from the protective cover, dustproof cylinder and the inner cavity of the dust collection cylinder to achieve spraying on the other side of the resistor. The designed resistor automatic aluminum spraying device is convenient for automatically flipping the resistor to achieve spraying on the opposite sides of the resistor. At the same time, it is convenient to collect aluminum powder scattered in the area around the spraying unit during the resistor spraying process, reduce the waste of aluminum powder during the zinc oxide resistor spraying operation, thereby reducing production costs, ensuring the air quality in the working area, and improving the safety performance of the zinc oxide resistor spraying operation.

[0008] Optionally, the fixing member includes an auxiliary support frame, a hollow mounting rod and a negative pressure pump; The auxiliary support frame is coaxially installed in the inner cavity of the dustproof cylinder; The hollow mounting rod is coaxially mounted on the auxiliary support frame, and the hollow mounting rod is rotatably connected to the auxiliary support frame, and the resistor is placed on the top of the hollow mounting rod; The negative pressure pump is installed on the dustproof cylinder, and the negative pressure pump is connected to the hollow installation rod.

[0009] By adopting the above technical solution, the resistor is placed on the hollow mounting rod, and then the negative pressure pump is adjusted. Under the action of the negative pressure pump, the hollow mounting rod is placed in a vacuum state, and then a negative pressure force is applied to the resistor at the end of the hollow mounting rod to achieve the limiting fixation of the resistor; the designed fixing part facilitates the application of negative pressure force to the resistor, improves the limiting performance of the resistor, avoids the resistor from falling off or displacing due to the force applied by the nozzle during the spraying operation, and ensures the uniformity of the resistor spraying.

[0010] Optionally, the hollow mounting rod includes a rotating part and a connecting part coaxially arranged from high to low, the rotating part is rotatably connected to the auxiliary support frame, and the resistor is installed at one end of the rotating part away from the connecting part; the connecting part is rotatably connected to the rotating part, and the connecting part is located below the auxiliary support frame, and the connecting part is connected to the negative pressure pump.

[0011] By adopting the above technical solution, the hollow mounting rod is arranged in sections, and its rotating part is convenient for supporting the resistor piece. At the same time, it rotates during the spraying operation to improve the uniformity of the resistor piece spraying; its connecting part is convenient for installing the negative pressure pump to achieve the limitation of the resistor piece.

[0012] Optionally, the limiting assembly further includes a rotating motor, a transmission belt, a first transmission wheel and a second transmission wheel; The rotating motor is mounted on the supporting arm, and is used to drive the first transmission wheel to rotate; The first transmission wheel is rotatably connected to the support arm, and the second transmission wheel is coaxially sleeved on the rotating portion, and the first transmission wheel and the second transmission wheel are axially parallel to each other; The transmission belt is wound around the first transmission wheel and the second transmission wheel, and the transmission belt passes through the dustproof cylinder.

[0013] By adopting the above technical solution, the rotating motor is adjusted, and the output shaft of the rotating motor drives the first transmission wheel to rotate, the first transmission wheel drives the transmission belt to move, the transmission belt drives the second transmission wheel to rotate, and the second transmission wheel drives the rotating part to rotate. Since the negative pressure of the resistor is adsorbed on the end of the rotating part, the rotating part drives the resistor to rotate synchronously, thereby realizing the rotation of the resistor. The designed limit assembly facilitates negative pressure limiting of the resistor, preventing the resistor from falling off or displacing due to the force applied by the nozzle during the spraying operation. At the same time, it facilitates the uniform rotation of the resistor during the spraying operation, thereby improving the uniformity of the resistor coating.

[0014] Optionally, the limiting assembly also includes a guide slide, a tensioning wheel and a plurality of limiting bolts. The guide slide is provided with a guide groove, and the limiting bolt passes through the guide groove and is threadedly connected to the support arm; the tensioning wheel is rotatably connected to the guide slide, and the outer peripheral wall of the tensioning wheel abuts against the transmission belt.

[0015] By adopting the above technical solution, the limit bolt is adjusted so that the bolt head of the limit bolt is separated from the guide slide, and then force is applied to the guide slide so that the guide slide slides along the limit bolt to achieve position adjustment of the guide slide, and the guide slide drives the tensioning wheel to move synchronously, and the tensioning wheel applies force to the transmission belt to achieve tensioning of the transmission belt; the designed guide slide, tensioning wheel and multiple limit bolts are convenient for applying force to the transmission belt, so that the transmission belt is in a tensioned state, thereby increasing the friction between the transmission belt and the first transmission wheel and the transmission belt and the second transmission wheel, ensuring the rotation of the rotating part, and realizing the rotation of the resistor.

[0016] Optionally, the spraying assembly further includes a mounting plate, a guide block, a screw and a speed regulating motor; The mounting plate is coaxially fixed to the protective cover; The mounting plate is provided with a guide groove for the guide block to slide, and the guide groove is arranged along the radial direction of the mounting plate, and the nozzle is mounted on the guide block; The screw rod passes through the guide block and is threadedly connected to the guide block, and the screw rod is arranged along the length direction of the guide groove; The speed regulating motor is mounted on the protective cover, and the output shaft of the speed regulating motor is coaxially connected to the screw.

[0017] By adopting the above technical solution, the rotating motor is adjusted, and the output shaft of the rotating motor drives the first transmission wheel to rotate. The first transmission wheel drives the transmission belt to move, and the transmission belt drives the second transmission wheel to rotate. The second transmission wheel drives the rotating part to rotate. Because the negative pressure of the resistor is adsorbed on the end of the rotating part, the rotating part drives the resistor to rotate synchronously. As the resistor rotates, the speed-regulating motor is adjusted, and the output shaft of the speed-regulating motor drives the screw to rotate. Because the screw is threadedly connected to the guide block, and the guide block is slidingly connected to the guide groove, the guide block slides in the radial direction of the mounting plate, and the guide block drives the spray head in the radial direction of the resistor. During the process of the spray head moving from the side of the resistor center axis to the side of the resistor outer peripheral wall, the movement speed of the spray head changes from fast to slow, so as to control the linear speed of the spray head during the movement of the spray head. The designed mounting plate, guide block, screw and speed-regulating motor facilitate the control of the linear speed of the spray head during the process of moving in the radial direction of the resistor. In combination with the rotation of the resistor, the thickness uniformity of the aluminum coating on the resistor during the spraying operation is improved.

[0018] Optionally, the exhaust component includes an exhaust fan and a cloth bag, the exhaust fan is installed on the dust collection cylinder, and the air outlet pipe of the exhaust fan extends out of the dust collection cylinder and is detachably connected to the cloth bag.

[0019] By adopting the above technical solution, the exhaust fan is adjusted, and the exhaust fan centrally extracts and discharges the dust in the dust collection cylinder, the dustproof cylinder and the inner cavity of the protective cover into the cloth bag, thereby realizing the centralized collection of dust in the dust collection cylinder, the dustproof cylinder and the inner cavity of the protective cover; the designed exhaust component facilitates the centralized extraction and discharge of dust in the dust collection cylinder, the dustproof cylinder and the inner cavity of the protective cover, thereby realizing the centralized recovery of excess aluminum powder, thereby facilitating the recycling and reuse of aluminum powder. At the same time, through the protective cover, the dustproof cylinder and the dust collection cylinder, the safety performance in the resistor spraying operation is improved, thereby improving the air quality in the resistor spraying operation area.

[0020] Optionally, the flip unit includes a bracket, a vertical beam, a lifting slide, an adjusting cylinder, a servo motor and a clamping assembly; The vertical beam is installed on the bracket; The lifting slide is slidably connected to the vertical beam; The adjusting cylinder is mounted on the vertical beam, the piston rod of the adjusting cylinder is connected to the lifting slide, and the adjusting cylinder drives the lifting slide to slide along the axial direction of the mounting plate; The servo motor is mounted on the lifting slide, and the output shaft of the servo motor is arranged along the radial direction of the mounting plate; The clamping assembly is mounted on the output shaft of the servo motor, and is used for limiting and clamping the resistor.

[0021] By adopting the above technical solution, first, the negative pressure pump is turned off and the adjusting cylinder is driven, the piston rod of the adjusting cylinder drives the lifting slide to move along the length direction of the vertical beam, the lifting slide drives the servo motor to rise and fall synchronously, and the servo motor drives the clamping assembly to rise and fall synchronously, and when the clamping assembly and the resistor are at the same height, the clamping assembly is adjusted to limit the clamping of the resistor; then, the adjusting cylinder is adjusted, and the piston rod of the adjusting cylinder drives the lifting slide, the servo motor, the clamping assembly and the resistor to rise synchronously, and rise until the distance between the resistor and the dustproof cylinder meets the flipping requirement of the resistor; the servo motor is adjusted, and the output shaft of the servo motor drives the clamping assembly and the resistor to rotate synchronously, and rotate until the resistor is flipped 180 degrees; then, the adjusting cylinder is adjusted, and the piston rod of the adjusting cylinder drives the lifting slide, the servo motor, the clamping assembly and the resistor to descend synchronously, and the resistor is placed on the hollow mounting rod, and the negative pressure pump is restarted to achieve limit fixation of the resistor; the designed flip unit facilitates automatic flipping of the resistor, and cooperates with another spraying unit to spray the other side of the resistor, thereby achieving double-sided spraying of the resistor.

[0022] Optionally, the clamping assembly includes a double-headed cylinder and two clamps, the double-headed cylinder is fixedly connected to the output shaft of the servo motor, and the two piston rods of the double-headed cylinder are respectively fixedly connected to the two clamps, and the two clamps form a clamping area for clamping the resistor sheet.

[0023] By adopting the above technical solution, first, the regulating cylinder is adjusted, and the piston rod of the regulating cylinder drives the lifting slide, servo motor, double-headed cylinder and chuck to rise and fall synchronously, and move until the two chucks are facing the outer wall of the resistor. Then, the double-headed cylinder is adjusted, and the piston rod of the double-headed cylinder drives the two chucks to move away from each other until the distance between the two chucks is greater than the diameter of the resistor. Then, the double-headed cylinder is adjusted, and the piston rod of the double-headed cylinder drives the two chucks to move closer to each other until the chucks are tightly against the outer wall of the resistor, thereby achieving limited clamping of the resistor. The designed clamping assembly facilitates limited clamping of the resistor, and then facilitates automatic flipping of the resistor, thereby achieving double-sided spraying of the resistor.

[0024] Optionally, a loading unit is further included, the loading unit including a conveyor belt, a limiting plate and a loading robot; The discharge end of the conveyor belt is arranged near one of the stations of the multi-station turntable unit; The limiting plate is installed on the frame of the conveyor belt, and the limiting plate is used to limit the resistor; The loading robot is arranged close to the conveyor belt and one of the dust-proof cylinders.

[0025] By adopting the above technical solution, the designed loading unit is convenient for automatically loading the resistor sheet and improves the efficiency of automatic spraying of the resistor sheet.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed automatic aluminum spraying device for resistors facilitates positioning of the resistors through the spraying unit. At the same time, it facilitates automatic flipping of the resistors in conjunction with the flipping unit, thereby achieving spraying on opposite sides of the resistors. In addition, it facilitates centralized collection of aluminum powder scattered in the area around the spraying unit during the resistor spraying process, reducing the waste of aluminum powder during the zinc oxide resistor spraying operation, thereby reducing production costs, ensuring the air quality in the working area, and improving the safety performance of the zinc oxide resistor spraying operation. 2. The designed automatic aluminum spraying device for resistor strips uses the mounting plate, guide block, screw and speed regulating motor to easily control the linear speed of the nozzle during the movement along the radial direction of the resistor strip, and cooperate with the rotation of the resistor strip to improve the uniformity of the thickness of the resistor strip aluminum coating during the spraying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the automatic aluminum spraying device for resistor sheets according to Example 1 of the present application; Figure 2 This is a partial structural diagram of the automatic aluminum spraying device for resistor sheets in Example 1 of the present application, which is intended to illustrate the loading unit; Figure 3 This is a partial structural diagram of the automatic aluminum spraying device for resistor sheets according to Example 1 of the present application, which is intended to illustrate the multi-station turntable unit; Figure 4 1 is a cross-sectional view of the multi-station turntable unit in the automatic aluminum spraying device for resistor sheets according to Example 1 of the present application; Figure 5 yes Figure 4 A magnified schematic diagram of part A; Figure 6 This is a partial structural diagram of the automatic aluminum spraying device for a resistor sheet according to Example 1 of the present application, which is intended to illustrate the spraying unit; Figure 7 1 is a cross-sectional view of a spraying unit in the automatic aluminum spraying device for a resistor sheet according to Example 1 of the present application; Figure 8 yes Figure 7 An enlarged schematic diagram of part B; Figure 9 This is a partial structural diagram of the automatic aluminum spraying device for resistor sheets in Example 1 of the present application, which is intended to illustrate the flip unit.

[0028] Explanation of the accompanying reference numerals: 1. multi-station turntable unit; 11. base; 12. drive motor; 13. mounting plate; 14. limit assembly; 141. support arm; 142. dust cylinder; 143. fixing member; 1431. auxiliary support frame; 1432. negative pressure pump; 144. hollow mounting rod; 1441. rotating part; 1442. connecting part; 145. rotating motor; 146. first transmission wheel; 147. second transmission wheel; 148. transmission belt; 149. tensioning wheel; 1491. guide slide; 1492. guide slide groove; 1493. limit bolt; 2. feeding unit; 21. conveyor belt; 22. feeding robot; 23. limit plate; 3. spraying unit; 31. spraying assembly; 311. Spraying support; 312. First lifting cylinder; 313. Protective cover; 314. Mounting plate; 315. Guide groove; 316. Guide block; 317. Speed regulating motor; 318. Screw; 319. Spray head; 32. Recovery assembly; 321. Exhaust support; 322. Second lifting cylinder; 323. Dust collector; 324. Exhaust part; 3241. Exhaust fan; 3242. Cloth bag; 4. Flipping unit; 41. Bracket; 42. Vertical beam; 43. Adjusting cylinder; 44. Lifting slide; 45. Servo motor; 46. Clamping assembly; 461. Double-head cylinder; 462. Clamp; 463. Clamping area; 5. Unloading unit; 51. Unloading robot; 52. Placement rack. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-9 This application is described in further detail.

[0030] The embodiment of the present application discloses an automatic aluminum spraying device for a resistor.

[0031] Reference Figure 1, an automatic aluminum spraying device for a resistor sheet, comprising a multi-station turntable unit 1, a loading unit 2, a turning unit 4, a unloading unit 5 and two groups of spraying units 3, the loading unit 2, one group of spraying units 3, the turning unit 4, the other group of spraying units 3 and the unloading unit 5 are arranged in sequence along the circumferential direction of the multi-station turntable unit 1; the multi-station turntable unit 1 in the present application can be five-station, six-station or seven-station, as long as the automatic spraying of the resistor sheet is achieved, in this embodiment, the multi-station turntable unit 1 is set as a five-station turntable unit, and the five-station turntable units are respectively arranged corresponding to the loading unit 2, the turning unit 4, the unloading unit 5 and the two groups of spraying units 3; through The loading unit 2 transfers the resistor piece to the first station of the multi-station turntable unit 1, the multi-station turntable unit 1 drives the resistor piece to move to the spraying unit 3, the spraying unit 3 sprays the front of the resistor piece at the second station of the multi-station turntable unit 1, the multi-station turntable unit 1 drives the resistor piece to move to the flipping unit 4, the flipping unit 4 flips the resistor piece, the multi-station turntable unit 1 drives the resistor piece to move to another group of spraying units 3, the other group of spraying units 3 sprays the back of the resistor piece at the fourth station of the multi-station turntable unit 1, the multi-station turntable unit 1 drives the resistor piece to move to the unloading unit 5, the unloading unit 5 unloads the resistor piece at the fifth station of the multi-station turntable unit 1.

[0032] Reference Figure 1 and Figure 2 The loading unit 2 includes a conveyor belt 21, a limit plate 23, a sensor and a loading manipulator 22. The discharge end of the conveyor belt 21 is arranged near the first station of the multi-station turntable unit 1; the limit plate 23 is installed on the frame of the conveyor belt 21. In this embodiment, the limit plate 23 is fixed to the frame of the conveyor belt 21 by bolts, and the limit plate 23 is used to limit the resistor. The limit plate 23 includes two limit parts, and the two limit parts are connected by a sensor. In addition, the sensor is located at the limit plate 23 and is arranged near the discharge end of the conveyor belt 21. A position sensor is formed between the two limit parts. The guide groove is used to guide the resistor sheet, and the width of the guide groove gradually decreases from the feed end of the conveyor belt 21 to the discharge end of the conveyor belt 21; the loading robot 22 is set close to the conveyor belt 21 and the dustproof cylinder 142 of the first station in the multi-station turntable unit 1; so that the conveyor belt 21 can send the resistor sheets to the limit plate 23 one by one, and the sensor sends a signal to the loading robot 22 after sensing it. The loading robot 22 clamps the resistor sheet and places it into the first station of the multi-station turntable unit 1. The multi-station turntable unit 1 rotates, driving the resistor sheet to move to the next station.

[0033] Reference Figure 3 and Figure 4The multi-station turntable unit 1 includes a base 11, a drive motor 12, a mounting plate 13 and a plurality of limit assemblies 14; the drive motor 12 is mounted on the base 11. In this embodiment, the drive motor 12 is fixed in the inner cavity of the base 11 by bolts, and the output shaft of the drive motor 12 is coaxially arranged with the base 11; the mounting plate 13 is coaxially mounted on the output shaft of the drive motor 12. In this embodiment, the mounting plate 13 and the output shaft of the drive motor 12 are connected by a key, and the mounting plate 13 is rotatably connected to the base 11; the limit assembly 14 is mounted on On the outer wall of the mounting plate 13, the limiting assemblies 14 in this embodiment are arranged into five groups, and the five limiting assemblies 14 are evenly distributed along the circumferential direction of the mounting plate 13; the limiting assemblies 14 include a support arm 141, a dustproof cylinder 142 and a fixing member 143, one end of the support arm 141 is fixedly connected to the side wall of the mounting plate 13, and the other end is fixedly connected to the dustproof cylinder 142. In this embodiment, the support arm 141 is welded to the mounting plate 13, and the other end of the support arm 141 is connected to the dustproof cylinder 142 by bolts, and the dustproof cylinder 142 is arranged axially parallel to the mounting plate 13.

[0034] Reference Figure 4 and Figure 5 , the fixing member 143 is installed in the inner cavity of the dustproof cylinder 142, and the fixing member 143 is used to limit the resistor. The fixing member 143 includes an auxiliary support frame 1431, a hollow mounting rod 144 and a negative pressure pump 1432; the auxiliary support frame 1431 is coaxially installed in the inner cavity of the dustproof cylinder 142. In this embodiment, the auxiliary support frame 1431 is welded and fixed to the inner wall of the dustproof cylinder 142; the hollow mounting rod 144 is coaxially installed on the auxiliary support frame 1431, and the hollow mounting rod 144 includes a rotating portion coaxially arranged from high to low 1441 and the connecting part 1442, the connecting part 1442 is rotatably connected to the rotating part 1441, the rotating part 1441 is rotatably connected to the auxiliary support frame 1431, and the resistor is installed at one end of the rotating part 1441 away from the connecting part 1442; the connecting part 1442 is located below the auxiliary support frame 1431, and the connecting part 1442 is connected to the negative pressure pump 1432, and the negative pressure pump 1432 is installed on the dustproof cylinder 142. In this embodiment, the negative pressure pump 1432 is fixed to the dustproof cylinder 142 by bolts.

[0035] Reference Figure 4 and Figure 5 In addition, a placement rod is fixedly connected to the inner cavity of the rotating part 1441, and the placement rod is coaxially arranged with the rotating part 1441, and an exhaust gap is left between the placement rod and the rotating part 1441; a rubber support piece is fixedly clamped at the end of the placement rod, and the rubber support piece is slightly higher than the top wall of the rotating part 1441, so as to increase the contact area between the placement rod and the resistor piece, and at the same time, facilitate stable support of the resistor piece.

[0036] Reference Figure 4 and Figure 5The limiting assembly 14 also includes a rotating motor 145, a transmission belt 148, an active friction wheel, a driven friction wheel, a first transmission wheel 146, a second transmission wheel 147, a rotating shaft, a guide slide 1491, a tensioning wheel 149 and a plurality of limiting bolts 1493; the rotating motor 145 is mounted on the base 11. In this embodiment, the rotating motor 145 is fixed to the base 11 by bolts, and the axial direction of the output shaft of the rotating motor 145 is parallel to the axial direction of the mounting plate 13; the rotating shaft is rotatably connected to the bottom wall of one of the arms 141, and The axial direction of the rotating shaft is parallel to the axial direction of the output shaft of the rotating motor 145; the active friction wheel is coaxially connected to the output shaft of the rotating motor 145. In this embodiment, the active friction wheel and the output shaft of the rotating motor 145 are connected by a key to facilitate the synchronous rotation of the active friction wheel and the output shaft of the rotating motor 145; the driven friction wheel is coaxially connected to the rotating shaft. In this embodiment, the driven friction wheel and the rotating shaft are key-connected to facilitate the synchronous rotation of the driven friction wheel and the rotating shaft, and the active friction wheel and the driven friction wheel are located on the same plane. The driving friction wheel and the driven friction wheel are in contact with each other, and the axial directions of the driving friction wheel and the driven friction wheel are arranged parallel to each other; the first transmission wheel 146 is coaxially arranged with the rotating shaft. In this embodiment, the first transmission wheel 146 is key-connected with the rotating shaft so that the driven friction wheel, the first transmission wheel 146 and the rotating shaft rotate synchronously. The second transmission wheel 147 is coaxially sleeved on the rotating part 1441. In this embodiment, the second transmission wheel 147 is key-connected with the rotating part 1441, and the first transmission wheel 146 and the second transmission wheel 147 are axially parallel to each other; the transmission belt 148 is wound around The first transmission wheel 146 and the second transmission wheel 147, and the transmission belt 148 are arranged through the dustproof cylinder 142; in addition, a guide groove 1492 is opened on the guide slide 1491, and the guide groove 1492 is arranged along the length direction of the guide slide 1491, and the limit bolt 1493 passes through the guide groove 1492 and is threadedly connected to the support arm 141; the tensioning wheel 149 is rotatably connected to the guide slide 1491, and the outer peripheral wall of the tensioning wheel 149 is in contact with the transmission belt 148, so as to realize the tensioning of the transmission belt 148, and then realize the rotation of the rotating part 1441.

[0037] Reference Figure 6 and Figure 7The spraying unit 3 includes a spraying component 31 and a recovery component 32. The spraying component 31 includes a spraying support 311, a spray head 319, a protective cover 313, a first lifting cylinder 312, a mounting plate 314, a guide block 316, a screw 318 and a speed regulating motor 317; the first lifting cylinder 312 is installed on the spraying support 311. In this embodiment, the piston rod of the first lifting cylinder 312 is arranged parallel to the axial direction of the mounting plate 13, and the first lifting cylinder 312 is fixed to the spraying support 311 by bolts; the protective cover 313 is installed on the piston rod of the first lifting cylinder 312, and the protective cover 313 is coaxial with the dustproof cylinder 142. In this embodiment, the protective cover 313 is arranged in a cylindrical tubular shape, and the protective cover 313 is fixedly connected to the piston rod of the first lifting cylinder 312 by a connecting joint, and in this embodiment, In the example, the inner diameter of the protective cover 313 is larger than the outer diameter of the dustproof cylinder 142, so that the lower end of the protective cover 313 can extend into the upper end of the dustproof cylinder 142, thereby achieving the overlap of the lower end of the protective cover 313 and the upper end of the dustproof cylinder 142. In addition, an upper retaining ring is coaxially fixedly connected to the inner wall of the protective cover 313, and an upper rubber ring is bonded to the side of the upper retaining ring close to the dustproof cylinder 142, so as to achieve the sealing contact between the protective cover 313 and the dustproof cylinder 142; the nozzle 319 is installed in the inner cavity of the protective cover 313, and the nozzle 319 is used for spraying the resistor sheet. In this embodiment, the nozzle 319 faces directly downward, and the radius of the resistor sheet is R, and the maximum spraying diameter of the nozzle 319 is d, d≦1 / 5R; the mounting plate 314 is coaxially fixed to the protective cover 313. In this embodiment, the mounting plate 314 is welded and fixed to the protective cover 313; refer to Figure 8 A guide groove 315 for the guide block 316 to slide is provided on the mounting plate 314, and the guide groove 315 is arranged along the radial direction of the mounting plate 314, and the nozzle 319 is installed on the guide block 316 to facilitate the movement of the nozzle 319 along the radial direction of the mounting plate 314; the screw 318 passes through the guide block 316, and the screw 318 is threadedly connected to the guide block 316, and the screw 318 is arranged along the length direction of the guide groove 315. In this embodiment, the screw 318 is rotatably connected to the mounting plate 314; the speed regulating motor 317 is installed on the protective cover 313. In this embodiment, the speed regulating motor 317 is fixed to the protective cover 313 by bolts, and the output shaft of the speed regulating motor 317 is coaxially connected with the screw 318 through a coupling.

[0038] Moreover, during the spraying process of the resistor sheet, the rotating motor 145 is started, and the output shaft of the rotating motor 145 drives the active friction wheel to rotate. Since the active friction wheel is in contact with the driven friction wheel, the friction between the active friction wheel and the driven friction wheel during the rotation process drives the driven friction wheel to rotate, and the driven friction wheel drives the rotating shaft to rotate synchronously, and the rotating shaft drives the first transmission wheel 146 to rotate synchronously, and the first transmission wheel 146 drives the transmission belt 148 to move, and the transmission belt 148 drives the second transmission wheel 147 to rotate, and the second transmission wheel 147 drives the rotating part 1441 to rotate. Since the negative pressure of the resistor sheet is adsorbed on the end of the rotating part 1441, the rotating part 1441 is realized. It rotates synchronously with the resistor; while the resistor rotates, the speed regulating motor 317 is started, and the output shaft of the speed regulating motor 317 drives the screw 318 to rotate. Since the screw 318 is threadedly connected to the guide block 316, and the guide groove 315 guides the guide block 316, the guide block 316 slides in the radial direction of the mounting plate 314, and the guide block 316 drives the nozzle 319 along the radial direction of the resistor. In the process of the nozzle 319 moving along the side of the central axis of the resistor to the side of the outer peripheral wall of the resistor, the movement speed of the nozzle 319 changes from fast to slow, so as to control the linear speed of the nozzle 319 during the movement of the nozzle 319 and improve the uniformity of the resistor coating.

[0039] Reference Figure 6 and Figure 7 The recovery component 32 includes an exhaust support 321, a dust collection cylinder 323, a second lifting cylinder 322 and an exhaust member 324. The second lifting cylinder 322 is installed on the exhaust support 321. In this embodiment, the exhaust support 321 can also be welded to the spray support 311 as a whole, and the first lifting cylinder 312 and the second lifting cylinder 322 are distributed up and down; the dust collection cylinder 323 is installed on the piston rod of the second lifting cylinder 322, and the dust collection cylinder 323 is coaxial with the dustproof cylinder 142. In this embodiment, the inner diameter of the dust collection cylinder 323 is larger than the outer diameter of the dustproof cylinder 142, so that the lower end of the dust collection cylinder 323 can extend into the upper end of the dustproof cylinder 142, thereby realizing the upper end of the dust collection cylinder 323 It overlaps with the lower end of the dustproof cylinder 142. In addition, a lower retaining ring is coaxially fixedly connected to the inner wall of the dust collection cylinder 323, and a lower rubber ring is bonded to the side of the lower retaining ring close to the dustproof cylinder 142, so as to achieve a sealed abutment between the dust collection cylinder 323 and the dustproof cylinder 142; the exhaust member 324 is used for centralized collection of dust in the protective cover 313, the dustproof cylinder 142 and the inner cavity of the dust collection cylinder 323, the exhaust member 324 includes an exhaust fan 3241 and a cloth bag 3242, the exhaust fan 3241 is installed on the dust collection cylinder 323, in this embodiment, the exhaust fan 3241 is fixed to the dust collection cylinder 323 by bolts, and the air outlet pipe of the exhaust fan 3241 extends out of the dust collection cylinder 323 and is detachably connected to the cloth bag 3242.

[0040] Reference Figure 1 and Figure 9, the flip unit 4 is used to flip the resistor sheet, and the flip unit 4 includes a bracket 41, a vertical beam 42, a lifting slide 44, an adjusting cylinder 43, a servo motor 45 and a clamping assembly 46; the vertical beam 42 is mounted on the bracket 41, and in this embodiment, the vertical beam 42 is fixed to the bracket 41 by bolts, and the length direction of the vertical beam 42 is arranged parallel to the axial direction of the mounting plate 13; the lifting slide 44 is slidably connected to the vertical beam 42, and in this embodiment, the lifting slide 44 slides along the length direction of the vertical beam 42; the adjusting cylinder 43 is mounted on the vertical beam 42, and in this embodiment, the adjusting cylinder 43 is fixed to the vertical beam 42 by bolts, and the piston rod of the adjusting cylinder 43 is connected to the lifting slide 44, so as to drive the lifting slide 44 to slide along the axial direction of the mounting plate 314 by the adjusting cylinder 43; the servo motor 45 is mounted on the lifting slide 44, and the output shaft of the servo motor 45 is arranged along the radial direction of the mounting plate 13; The clamping assembly 46 is installed on the output shaft of the servo motor 45, and the clamping assembly 46 is used for limiting the clamping of the resistor. The clamping assembly 46 includes a double-headed cylinder 461 and two clamps 462. The double-headed cylinder 461 is fixedly connected to the output shaft of the servo motor 45, and the two piston rods of the double-headed cylinder 461 are respectively fixedly connected to the two clamps 462. The two clamps 462 form a clamping area 463 for clamping the resistor.

[0041] Reference Figure 1 The unloading unit 5 includes an unloading robot 51 and a placement rack 52, so that the sprayed resistor sheets can be placed on the placement rack 52 by the unloading robot 51 to realize automatic unloading of the resistor sheets.

[0042] The working principle of the automatic aluminum spraying device for resistor sheets of the embodiment of the present application is as follows: when spraying the resistor sheets, first, the driving motor 12 is adjusted, and the output shaft of the driving motor 12 drives the mounting plate 13 to rotate along the base 11, and the mounting plate 13 drives the multiple supporting arms 141 to rotate synchronously, and the supporting arms 141 drive the dust-proof cylinder 142 to move synchronously, and the dust-proof cylinder 142 drives the auxiliary support frame 1431, the hollow mounting rod 144 and the negative pressure pump 1432 to move synchronously; then, the resistor sheets are placed on the conveyor belt 21 at intervals, and the conveyor belt 21 moves the resistor sheets one by one. The resistor is transmitted to the limit plate 23 at intervals. After the sensor senses the resistor, it sends a signal to the loading robot 22. The loading robot 22 clamps the resistor and places it into the first station of the multi-station turntable unit 1. The multi-station turntable unit 1 rotates, driving the resistor to move to the second station of the multi-station turntable unit 1; and the negative pressure pump 1432 is adjusted. Under the action of the negative pressure pump 1432, the hollow mounting rod 144 is in a vacuum state, and then a negative pressure force is applied to the resistor at the end of the hollow mounting rod 144 to achieve the limit fixation of the resistor.

[0043] The rotating motor 145 is started, and the output shaft of the rotating motor 145 drives the active friction wheel to rotate. Since the active friction wheel is in contact with the driven friction wheel, the friction between the active friction wheel and the driven friction wheel during the rotation process drives the driven friction wheel to rotate, and the driven friction wheel drives the rotating shaft to rotate synchronously, and the rotating shaft drives the first transmission wheel 146 to rotate synchronously, and the first transmission wheel 146 drives the transmission belt 148 to move, and the transmission belt 148 drives the second transmission wheel 147 to rotate, and the second transmission wheel 147 drives the rotating part 1441 to rotate. Since the negative pressure of the resistor is adsorbed on the end of the rotating part 1441, the rotating part 1441 and the resistor rotate synchronously; while the resistor rotates, the speed regulating motor 317 is started, and the output shaft of the speed regulating motor 317 drives the screw 318 to rotate. Since the screw 318 It is threadedly connected to the guide block 316, and the guide groove 315 guides the guide block 316, so that the guide block 316 slides along the radial direction of the mounting plate 314, and the guide block 316 drives the nozzle 319 along the radial direction of the resistor. In the process of the nozzle 319 moving along the side of the central axis of the resistor to the side of the outer peripheral wall of the resistor, the movement speed of the nozzle 319 changes from fast to slow, so as to control the linear speed of the nozzle 319 during the movement of the nozzle 319, spray the front of the resistor through the nozzle 319, and adjust the exhaust fan 3241. The exhaust fan 3241 concentrates the dust in the dust collection cylinder 323, the dustproof cylinder 142 and the inner cavity of the protective cover 313 and exhausts it into the cloth bag 3242, so as to realize the centralized collection of dust in the dust collection cylinder 323, the dustproof cylinder 142 and the inner cavity of the protective cover 313.

[0044] The multi-station turntable unit 1 drives the resistor to move to the third station of the multi-station turntable unit 1, adjusts the negative pressure pump 1432, turns off the negative pressure pump 1432, and drives the adjusting cylinder 43. The piston rod of the adjusting cylinder 43 drives the lifting slide 44 to move along the length direction of the vertical beam 42. The lifting slide 44 drives the servo motor 45 to rise and fall synchronously. The servo motor 45 drives the double-headed cylinder 461 and the two clamps 462 to rise and fall synchronously. When the two clamps 462 are at the same height as the resistor, adjust the double-headed cylinder 461. The piston rod of the double-headed cylinder 461 drives the two clamps 462 to move closer to each other to limit the resistor; then, adjust the adjusting cylinder 43 and the adjusting cylinder 4 3, the piston rod drives the lifting slide 44, the servo motor 45, the clamping assembly 46 and the resistor to rise synchronously until the distance between the resistor and the dustproof cylinder 142 meets the flipping requirement of the resistor; adjust the servo motor 45, and the output shaft of the servo motor 45 drives the double-headed cylinder 461, the clamping head 462 and the resistor to rotate synchronously until the resistor flips 180 degrees; then adjust the adjusting cylinder 43, and the piston rod of the adjusting cylinder 43 drives the lifting slide 44, the servo motor 45, the double-headed cylinder 461, the clamping head 462 and the resistor to descend synchronously, and place the resistor on the hollow mounting rod 144, and restart the negative pressure pump 1432 to achieve the limit fixation of the resistor.

[0045] The multi-station turntable unit 1 drives the resistor to move to another group of spraying units 3, and the other group of spraying units 3 sprays the back of the resistor. The multi-station turntable unit 1 drives the resistor to move to the unloading unit 5, and the unloading unit 5 unloads the resistor at the fifth station of the multi-station turntable unit 1.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A resistor sheet automatic aluminum spraying device, characterized in that: It comprises a multi-station turntable unit (1), a turnover unit (4) and two groups of spraying units (3), wherein one of the spraying units (3), the turnover unit (4) and the other group of spraying units (3) are arranged in sequence along the circumferential direction of the multi-station turntable unit (1); The multi-station turntable unit (1) comprises a base (11), a drive motor (12), a mounting plate (13) and a plurality of position limiting components (14); The driving motor (12) is mounted on the base (11); The mounting plate (13) is coaxially mounted on the output shaft of the driving motor (12), and the mounting plate (13) is rotatably connected to the base (11); The limiting assembly (14) is installed on the outer side wall of the mounting plate (13), and a plurality of the limiting assemblies (14) are evenly distributed along the circumferential direction of the mounting plate (13); The limiting assembly (14) includes a support arm (141), a dustproof cylinder (142) and a fixing member (143); One end of the support arm (141) is fixedly connected to the side wall of the mounting plate (13); the other end of the support arm (141) is fixedly connected to the dustproof cylinder (142), and the dustproof cylinder (142) is axially parallel to the mounting plate (13); The fixing member (143) is installed in the inner cavity of the dustproof cylinder (142), and the fixing member (143) is used to limit the resistor sheet; The spraying unit (3) comprises a spraying component (31) and a recovery component (32); The spraying assembly (31) includes a spraying support (311), a spray head (319), a protective cover (313), and a first lifting cylinder (312); The first lifting cylinder (312) is installed on the spraying support (311); The protective cover (313) is installed on the piston rod of the first lifting cylinder (312), and the protective cover (313) is coaxial with the dustproof cylinder (142); The spray head (319) is installed in the inner cavity of the protective cover (313), and the spray head (319) is used for spraying the resistor sheet; The recovery assembly (32) includes an exhaust support (321), a dust collection cylinder (323), a second lifting cylinder (322), and an exhaust member (324); The second lifting cylinder (322) is installed on the air extraction support (321); The dust collecting cylinder (323) is installed on the piston rod of the second lifting cylinder (322), and the dust collecting cylinder (323) is coaxial with the dustproof cylinder (142); The exhaust member (324) is used for collecting dust in the inner cavities of the protective cover (313), the dustproof cylinder (142) and the dust collecting cylinder (323); The flipping unit (4) is used for flipping the resistor sheet.

2. The automatic aluminum spraying device for resistor sheets according to claim 1, characterized in that: The fixing member (143) includes an auxiliary support frame (1431), a hollow mounting rod (144) and a negative pressure pump (1432); The auxiliary support frame (1431) is coaxially installed in the inner cavity of the dustproof cylinder (142); The hollow mounting rod (144) is coaxially mounted on the auxiliary support frame (1431), and the hollow mounting rod (144) is rotatably connected to the auxiliary support frame (1431), and the resistor is placed on the top of the hollow mounting rod (144); The negative pressure pump (1432) is installed on the dustproof cylinder (142), and the negative pressure pump (1432) is connected to the hollow installation rod (144).

3. The automatic aluminum spraying device for resistor strips according to claim 2, characterized in that: The hollow mounting rod (144) includes a rotating portion (1441) and a connecting portion (1442) coaxially arranged from high to low, the rotating portion (1441) is rotatably connected to the auxiliary support frame (1431), and the resistor is installed at one end of the rotating portion (1441) away from the connecting portion (1442); the connecting portion (1442) is rotatably connected to the rotating portion (1441), and the connecting portion (1442) is located below the auxiliary support frame (1431), and the connecting portion (1442) is connected to the negative pressure pump (1432).

4. The automatic aluminum spraying device for resistor strips according to claim 3, characterized in that: The limiting assembly (14) further includes a rotating motor (145), a transmission belt (148), a first transmission wheel (146), and a second transmission wheel (147); The rotating motor (145) is installed on the supporting arm (141), and the rotating motor (145) is used to drive the first transmission wheel (146) to rotate; The first transmission wheel (146) is rotatably connected to the support arm (141), the second transmission wheel (147) is coaxially sleeved on the rotating portion (1441), and the first transmission wheel (146) and the second transmission wheel (147) are axially parallel. The transmission belt (148) is wound around the first transmission wheel (146) and the second transmission wheel (147), and the transmission belt (148) is arranged through the dustproof cylinder (142).

5. The automatic aluminum spraying device for resistor strips according to claim 4, characterized in that: The limiting assembly (14) also includes a guide slide (1491), a tensioning wheel (149) and a plurality of limiting bolts (1493); the guide slide (1491) is provided with a guide groove (1492), and the limiting bolt (1493) passes through the guide groove (1492) and is threadedly connected to the support arm (141); the tensioning wheel (149) is rotatably connected to the guide slide (1491), and the outer peripheral wall of the tensioning wheel (149) is in contact with the transmission belt (148).

6. The automatic aluminum spraying device for resistor sheets according to claim 1, characterized in that: The spraying assembly (31) further includes a mounting plate (314), a guide block (316), a screw (318) and a speed regulating motor (317); The mounting plate (314) is coaxially fixed to the protective cover (313); The mounting plate (314) is provided with a guide groove (315) for the guide block (316) to slide, and the guide groove (315) is arranged along the radial direction of the mounting plate (314), and the nozzle (319) is installed on the guide block (316); The screw rod (318) passes through the guide block (316), and the screw rod (318) is threadedly connected to the guide block (316), and the screw rod (318) is arranged along the length direction of the guide groove (315); The speed regulating motor (317) is mounted on the protective cover (313), and the output shaft of the speed regulating motor (317) is coaxially connected to the screw (318).

7. The automatic aluminum spraying device for resistor sheets according to claim 1, characterized in that: The exhaust member (324) comprises an exhaust fan (3241) and a cloth bag (3242); the exhaust fan (3241) is mounted on the dust collection cylinder (323); and an air outlet pipe of the exhaust fan (3241) extends out of the dust collection cylinder (323) and is detachably connected to the cloth bag (3242).

8. The automatic aluminum spraying device for resistor sheets according to claim 1, characterized in that: The turning unit (4) comprises a bracket (41), a vertical beam (42), a lifting slide (44), an adjusting cylinder (43), a servo motor (45) and a clamping assembly (46); The vertical beam (42) is mounted on the bracket (41); The lifting slide plate (44) is slidably connected to the vertical beam (42); The regulating cylinder (43) is installed on the vertical beam (42), the piston rod of the regulating cylinder (43) is connected to the lifting slide (44), and the regulating cylinder (43) drives the lifting slide (44) to slide along the axial direction of the mounting plate (314); The servo motor (45) is mounted on the lifting slide (44), and the output shaft of the servo motor (45) is arranged along the radial direction of the mounting plate (13); The clamping assembly (46) is mounted on the output shaft of the servo motor (45), and the clamping assembly (46) is used for limiting and clamping the resistor.

9. The automatic aluminum spraying device for resistor sheets according to claim 8, characterized in that: The clamping assembly (46) includes a double-headed cylinder (461) and two clamps (462), wherein the double-headed cylinder (461) is fixedly connected to the output shaft of the servo motor (45), and the two piston rods of the double-headed cylinder (461) are respectively fixedly connected to the two clamps (462), and the two clamps (462) form a clamping area (463) for clamping the resistor sheet.

10. The automatic aluminum spraying device for resistor sheets according to claim 1, characterized in that: It also includes a loading unit (2), wherein the loading unit (2) includes a conveyor belt (21), a limiting plate (23) and a loading robot (22); The discharge end of the conveyor belt (21) is arranged close to one of the stations of the multi-station turntable unit (1); The limiting plate (23) is installed on the frame of the conveyor belt (21), and the limiting plate (23) is used to limit the resistor sheet; The loading robot (22) is arranged close to the conveyor belt (21) and one of the dustproof cylinders (142).

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