Sander rotor and fan blade automatic assembly system

Abstract

The invention relates to the field of sander production equipment, in particular to a sander rotor and fan blade automatic assembly system. The system comprises a product horizontal conveying table, a carrier, a rotor output mechanism, a rotor dislocation mechanism, a rotor transfer preassembling mechanism, a fan blade mounting hole cleaning mechanism, a detection mechanism, a product discharging mechanism and a pressure mechanism, and the rotor dislocation mechanism is arranged at the discharging end of the rotor output mechanism. The rotor output mechanism is matched with the rotor dislocation mechanism to move the rotors to the part taking position one by one, and the bottom ends of the rotors are placed at fan blade center holes through the rotor transferring and preassembling mechanism. And dirt at the center holes of the fan blades is cleaned through the fan blade mounting hole cleaning mechanism. And the bottom end of the rotor is pressed into the central hole of the fan blade through the pressure mechanism. Whether the fan blades and the rotor are installed in place or not is judged through the detection mechanism. And the assembled fan blades and rotors are taken away from the product horizontal conveying table through the product discharging mechanism. According to the invention, the labor cost is reduced, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of sanding machine production equipment, and in particular to an automatic assembly system for sanding machine rotors and blades. Background Technology

[0002] A sander is a device that uses abrasive belts or abrasive cloth (paper) to sand the surface of a workpiece. It is mainly used in furniture, automobile manufacturing, and engineered wood processing. It works by using a power source to drive abrasive materials (such as sandpaper) to rub the workpiece surface in a specific motion, thereby achieving the purpose of sanding, polishing, or cleaning. A sander consists of a stator, rotor, and blades. One end of the rotor needs to be pressed into the center hole of the blade to complete the fit between the blade and the rotor. Currently, the installation of the blade and rotor is done manually by hammering them in or by having workers place the rotor and blades under a pressing machine to press them in. This method is inefficient, labor-intensive, and poses certain operational risks to workers. Summary of the Invention

[0003] To overcome the shortcomings of low assembly efficiency of existing sander rotors and blades, this invention provides an automatic assembly system for sander rotors and blades.

[0004] The technical solution adopted by this invention to solve its technical problem is: an automatic assembly system for a sander rotor and blades, including a product horizontal conveyor, a carrier, a rotor output mechanism, a rotor misalignment mechanism, a rotor transfer pre-assembly mechanism, a blade mounting hole cleaning mechanism, a detection mechanism, a product discharge mechanism, and a pressure mechanism. The rotor output mechanism has a rotor misalignment mechanism at its discharge end, and a rotor transfer pre-assembly mechanism is located on one side of the rotor misalignment mechanism. A carrier is installed on the product horizontal conveyor, which is located between the rotor transfer pre-assembly mechanism and the pressure mechanism. A blade mounting hole cleaning mechanism and a detection mechanism are located on one side of the product horizontal conveyor, and a product discharge mechanism is located at the discharge end of the product horizontal conveyor. The product horizontal conveyor, carrier, rotor output mechanism, rotor misalignment mechanism, rotor transfer pre-assembly mechanism, blade mounting hole cleaning mechanism, detection mechanism, product discharge mechanism, and pressure mechanism are all communicatively connected to a PLC.

[0005] According to another embodiment of the present invention, the rotor output mechanism further includes a belt conveyor, a push plate, a push plate lifting cylinder, and a horizontal rodless cylinder. The cylinder body of the horizontal rodless cylinder is located above the discharge end of the belt conveyor. The push plate lifting cylinder is fixed on the slide of the horizontal rodless cylinder, and a push plate is fixed on the piston rod of the push plate lifting cylinder.

[0006] According to another embodiment of the present invention, the rotor misalignment mechanism further includes a transfer base, a rotor push plate, a horizontal cylinder, a carrier, and a carrier lifting cylinder. The transfer base is located at the discharge end of the belt conveyor. The side of the transfer base is provided with a feed inlet. A straight flow channel is provided inside the transfer base. The feed inlet is connected to the straight flow channel. A carrier is fixed on the piston rod of the carrier lifting cylinder. A horizontal cylinder is fixed at the front end of the transfer base. A rotor push plate is fixed on the piston rod of the horizontal cylinder. The rotor push plate is located inside the straight flow channel. The carrier is located on the outlet side of the straight flow channel.

[0007] According to another embodiment of the present invention, the rotor transfer pre-assembly mechanism further includes a gripper, a motor, a lifting cylinder, a base, a gear rotary motor, a gear disk, and a gear. The top of the base is rotatably connected to the gear disk and the gear. The gear is fixed on the output shaft of the gear rotary motor. The body of the gear rotary motor is fixed inside the base. The gear disk meshes with the gear. The cylinder body of the lifting cylinder is fixed on the gear disk. A connecting rod is fixed on the piston rod of the lifting cylinder. The end of the connecting rod is fixed to the body of the motor. The gripper is fixed on the output shaft of the motor.

[0008] According to another embodiment of the present invention, the base is further provided with a limit rod fixed on one side, and a stop bar for releasing the limit rod is fixed on the cylinder body of the lifting electric cylinder.

[0009] According to another embodiment of the present invention, the base is slidably connected to a horizontal straight rail, and a linear moving mechanism is installed between the base and the horizontal straight rail. The linear moving mechanism is a drive gear, a rack, and a motor. The output shaft of the motor is fixed with a drive gear, the drive gear meshes with the rack, and the rack is fixed to the bottom of the base.

[0010] According to another embodiment of the present invention, the fan blade mounting hole cleaning mechanism further includes an air nozzle, an air pump, a roller brush, a roller brush rotary motor, and a single-rod cylinder. The air nozzle is connected to the air pump, the roller brush is fixed on the output shaft of the roller brush rotary motor, and the body of the roller brush rotary motor is fixed on the piston rod of the single-rod cylinder.

[0011] According to another embodiment of the present invention, the detection mechanism is further comprising a CCD camera.

[0012] According to another embodiment of the present invention, the product unloading mechanism further includes a multi-axis robot and a gripper, wherein the gripper is mounted on the multi-axis robot.

[0013] According to another embodiment of the present invention, the pressure mechanism further includes a hydraulic cylinder, a secondary hydraulic cylinder, a pressure block, a spring, and a connecting seat. The piston rod end of the hydraulic cylinder is fixed to the cylinder body of the secondary hydraulic cylinder. A connecting seat is fixed to the piston rod of the secondary hydraulic cylinder. A pressure block is slidably connected to the connecting seat. A spring is connected between the pressure block and the connecting seat. A tapered groove is provided at the bottom end of the pressure block.

[0014] The beneficial effects of this invention are that it moves the rotors one by one to the picking position through a rotor output mechanism and a rotor misalignment mechanism, and places the bottom end of the rotor into the center hole of the fan blade through a rotor transfer pre-assembly mechanism. A fan blade mounting hole cleaning mechanism cleans the dirt in the center hole of the fan blade. A pressure mechanism presses the bottom end of the rotor into the center hole of the fan blade. A detection mechanism determines whether the fan blade and rotor are properly installed. A product unloading mechanism removes the assembled fan blade and rotor from the product horizontal conveyor table. This invention reduces labor costs and improves processing efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the rotor misalignment mechanism of the present invention; Figure 3 This is a schematic diagram of the pressure mechanism of the present invention; In the diagram: 1. Horizontal product conveyor; 2. Carrier; 3. Rotor output mechanism; 4. Rotor misalignment mechanism; 5. Rotor transfer pre-assembly mechanism; 6. Fan blade mounting hole cleaning mechanism; 7. Detection mechanism; 8. Product discharge mechanism; 9. Pressure mechanism; 31. Belt conveyor; 32. Push plate; 33. Push plate lifting cylinder; 34. Horizontal rodless cylinder; 41. Transfer base; 42. Rotor push plate; 43. Horizontal cylinder; 44. Carrier; 45. Carrier lifting cylinder; 46. Inlet; 47. Straight flow channel; 50. Linear movement mechanism; 51. Gripper; 52. Motor; 53. Lifting electric cylinder; 54. Base; 55. Gear plate; 56. Gear; 57. Limit rod; 58. Stop rod; 59. Horizontal straight rail; 61. Air nozzle; 62. 63. Roller brush; 94. Single-rod cylinder; 95. Hydraulic cylinder; 96. Two-stage hydraulic cylinder; 97. Pressure block; 98. Spring; 99. Connecting seat. Detailed Implementation

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the rotor misalignment mechanism of the present invention; Figure 3 This is a schematic diagram of the pressure mechanism of the present invention.

[0018] As attached Figure 1As shown, an automatic assembly system for a sander rotor and blades includes a horizontal product conveyor 1, a carrier 2, a rotor output mechanism 3, a rotor misalignment mechanism 4, a rotor transfer pre-assembly mechanism 5, a blade mounting hole cleaning mechanism 6, a detection mechanism 7, a product discharge mechanism 8, and a pressure mechanism 9. The rotor output mechanism 3 has a rotor misalignment mechanism 4 at its discharge end, and a rotor transfer pre-assembly mechanism 5 is located on one side of the rotor misalignment mechanism 4. The carrier 2 is mounted on the horizontal product conveyor 1, which is situated between the rotor transfer pre-assembly mechanism 5 and the pressure mechanism 9. A blade mounting hole cleaning mechanism 6 and a detection mechanism 7 are located on one side of the horizontal product conveyor 1, and a product discharge mechanism 8 is located at the discharge end of the horizontal product conveyor 1. The horizontal product conveyor 1, carrier 2, rotor output mechanism 3, rotor misalignment mechanism 4, rotor transfer pre-assembly mechanism 5, blade mounting hole cleaning mechanism 6, detection mechanism 7, product discharge mechanism 8, and pressure mechanism 9 are all communicatively connected to a PLC.

[0019] The rotor output mechanism 3 includes a belt conveyor 31, a push plate 32, a push plate lifting cylinder 33, and a horizontal rodless cylinder 34. The cylinder body of the horizontal rodless cylinder 34 is located above the discharge end of the belt conveyor 31. The push plate lifting cylinder 33 is fixed on the slide of the horizontal rodless cylinder 34, and the push plate 32 is fixed on the piston rod of the push plate lifting cylinder 33.

[0020] The belt conveyor 31 can transport the rotor forward, and the limit baffles on the left and right sides of the belt conveyor 31 can ensure that the rotor passes through the feed inlet 46. After the rotor moves to the discharge end of the belt conveyor 31, the push plate lifting cylinder 33 drives the push plate 32 to move down to the rear of the rotor, and then the push plate lifting cylinder 33 drives the push plate 32 to move forward horizontally, thereby pushing the rotor into the straight flow channel 47 of the transfer base 41.

[0021] As attached Figure 2 As shown, the rotor misalignment mechanism 4 includes a transfer base 41, a rotor push plate 42, a horizontal cylinder 43, a carrier 44, and a carrier lifting cylinder 45. The transfer base 41 is placed at the discharge end of the belt conveyor 31. The transfer base 41 has an inlet 46 on its side and a straight flow channel 47 inside. The inlet 46 is connected to the straight flow channel 47. The carrier 44 is fixed on the piston rod of the carrier lifting cylinder 45. The horizontal cylinder 43 is fixed at the front end of the transfer base 41. The rotor push plate 42 is fixed on the piston rod of the horizontal cylinder 43. The rotor push plate 42 is located inside the straight flow channel 47, and the carrier 44 is located on the outlet side of the straight flow channel 47.

[0022] After the rotor passes through the feed inlet 46 and enters the straight flow channel 47, the horizontal cylinder 43 drives the rotor pusher plate 42 to move forward, thereby pushing the rotor onto the carrier 44, which is provided with an arc-shaped groove for placing the rotor. Finally, the carrier lifting cylinder 45 drives the carrier 44, which contains the rotor, to rise to the part removal position.

[0023] The rotor transfer pre-assembly mechanism 5 includes a gripper 51, a motor 52, a lifting cylinder 53, a base 54, a gear rotary motor, a gear disk 55, and a gear 56. The gear disk 55 and the gear 56 are rotatably connected to the top of the base 54. The gear 56 is fixed on the output shaft of the gear rotary motor. The body of the gear rotary motor is fixed inside the base 54. The gear disk 55 meshes with the gear 56. The cylinder body of the lifting cylinder 53 is fixed on the gear disk 55. A connecting rod is fixed on the piston rod of the lifting cylinder 53. The body of the motor 52 is fixed to the end of the connecting rod. The gripper 51 is fixed on the output shaft of the motor 52.

[0024] A gear-driven rotary motor rotates gear 56, which in turn rotates gear disc 55, thus causing lifting cylinder 53 to rotate horizontally. The rotation of the output shaft of motor 52 causes gripper 51 to swing vertically, adjusting its orientation. Lifting cylinder 53 can also drive gripper 51 to move vertically up and down.

[0025] A limit rod 57 is fixed to one side of the base 54, and a stop rod 58 for releasing the limit rod 57 is fixed on the cylinder body of the lifting cylinder 53. When the gear plate 55 rotates with the lifting cylinder 53 until the stop rod 58 hits the limit rod 57, it can help the rotor held by the gripper 51 rotate to the accurate placement position.

[0026] The base 54 is slidably connected to the horizontal straight rail 59. A linear moving mechanism 50 is installed between the base 54 and the horizontal straight rail 59. The linear moving mechanism 50 consists of a drive gear, a rack, and a motor. The output shaft of the motor is fixed with the drive gear, which meshes with the rack. The rack is fixed to the bottom of the base 54.

[0027] The motor drives the drive gear, which can roll along the rack, thereby causing the base 54 to move horizontally and linearly along the horizontal rail 59.

[0028] The fan blade mounting hole cleaning mechanism 6 includes an air nozzle 61, an air pump, a roller brush 62, a roller brush rotary motor, and a single-rod cylinder 63. The air nozzle 61 is connected to the air pump, the roller brush 62 is fixed on the output shaft of the roller brush rotary motor, and the body of the roller brush rotary motor is fixed on the piston rod of the single-rod cylinder 63.

[0029] The air pump generates gas and blows away the dirt in the center hole of the fan blade through the air nozzle 61. The single-rod cylinder 63 can drive the roller brush 62 to move forward to the center hole of the fan blade. At this time, the roller brush rotation motor can drive the roller brush 62 to rotate, which can scrape away the dirt in the center hole of the fan blade.

[0030] The inspection unit 7 is a CCD camera. The CCD camera can transmit product image information to the PLC, which then determines whether the fan blades and rotor are installed correctly.

[0031] Product unloading mechanism 8 includes a multi-axis robot and a gripper 1, with the gripper 1 installed on the multi-axis robot.

[0032] As attached Figure 3 As shown, the pressure mechanism 9 includes a hydraulic cylinder 91, a secondary hydraulic cylinder 92, a pressure block 93, a spring 94, and a connecting seat 95. The piston rod end of the hydraulic cylinder 91 is fixed on the cylinder body of the secondary hydraulic cylinder 92. The connecting seat 95 is fixed on the piston rod of the secondary hydraulic cylinder 92. The pressure block 93 is slidably connected to the connecting seat 95. The spring 94 is connected between the pressure block 93 and the connecting seat 95. The bottom end of the pressure block 93 is provided with a tapered groove.

[0033] When the rotor is vertically positioned at the center hole of the fan blade, hydraulic cylinder 91 drives secondary hydraulic cylinder 92 and pressure block 93 to move downwards, so that the top of the rotor is placed in the conical groove of pressure block 93. Since the large opening of the conical groove faces downwards, and pressure block 93 can move linearly left and right along the connecting seat 95, a slight error is allowed when pressure block 93 aligns with the rotor end. Finally, secondary hydraulic cylinder 92 drives pressure block 93 to continue pressing down, thus pressing the bottom end of the rotor into the center hole of the fan blade.

[0034] The working method of this application is as follows: First, the rotor output mechanism 3 feeds the rotors sequentially into the rotor misalignment mechanism 4. The rotor misalignment mechanism 4 moves one rotor to the pick-up position, and then the rotor transfer pre-assembly mechanism 5 removes the rotor. The horizontal conveyor table 1 drives the carrier 2 loaded with fan blades to move horizontally to the fan blade mounting hole cleaning mechanism 6 to clean the dirt in the center hole of the fan blades.

[0035] The horizontal conveyor 1 drives the carrier 2, which carries the fan blades, to move horizontally to directly below the pressure mechanism 9. At this time, the rotor transfer pre-assembly mechanism 5 places the rotor vertically into the center hole of the fan blade. Then, the hydraulic cylinder 91 of the pressure mechanism 9 drives the pressure block 93 downward, so that the end of the rotor is placed in the conical groove of the pressure block 93. After the rotor transfer pre-assembly mechanism 5 releases the rotor, the secondary hydraulic cylinder 92 drives the pressure block 93 downward, thereby pressing the bottom end of the rotor into the center hole of the fan blade, realizing the interference fit between the fan blade and the rotor. The assembled product is moved horizontally to the inspection mechanism 7 to check whether it is installed in place. Finally, the product is moved to the product discharge mechanism 8 and removed from the carrier 2.

Claims

1. An automatic assembly system for a sander rotor and fan blades, characterized in that, The product horizontal conveyor (1), carrier (2), rotor output mechanism (3), rotor misalignment mechanism (4), rotor transfer pre-assembly mechanism (5), fan blade mounting hole cleaning mechanism (6), detection mechanism (7), product discharge mechanism (8), and pressure mechanism (9) are included. The rotor output mechanism (3) is provided with rotor misalignment mechanism (4) at the discharge end, and rotor transfer pre-assembly mechanism (5) is provided on one side of rotor misalignment mechanism (4). The carrier (2) is installed on the product horizontal conveyor (1), and the product horizontal conveyor (1) is located at the rotor. Between the transfer pre-assembly mechanism (5) and the pressure mechanism (9), a fan blade mounting hole cleaning mechanism (6) and a detection mechanism (7) are provided on one side of the product horizontal conveyor (1). A product discharge mechanism (8) is provided at the discharge end of the product horizontal conveyor (1). The product horizontal conveyor (1), carrier (2), rotor output mechanism (3), rotor misalignment mechanism (4), rotor transfer pre-assembly mechanism (5), fan blade mounting hole cleaning mechanism (6), detection mechanism (7), product discharge mechanism (8), and pressure mechanism (9) are all connected to the PLC.

2. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The rotor output mechanism (3) includes a belt conveyor (31), a push plate (32), a push plate lifting cylinder (33), and a horizontal rodless cylinder (34). The cylinder body of the horizontal rodless cylinder (34) is located above the discharge end of the belt conveyor (31). The push plate lifting cylinder (33) is fixed on the slide of the horizontal rodless cylinder (34), and the push plate (32) is fixed on the piston rod of the push plate lifting cylinder (33).

3. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The rotor misalignment mechanism (4) includes a transfer base (41), a rotor push plate (42), a horizontal cylinder (43), a carrier (44), and a carrier lifting cylinder (45). The transfer base (41) is located at the discharge end of the belt conveyor (31). The transfer base (41) has an inlet (46) on its side. The transfer base (41) has a straight flow channel (47) inside. The inlet (46) is connected to the straight flow channel (47). The carrier (44) is fixed on the piston rod of the carrier lifting cylinder (45). The horizontal cylinder (43) is fixed at the front end of the transfer base (41). The rotor push plate (42) is fixed on the piston rod of the horizontal cylinder (43). The rotor push plate (42) is located inside the straight flow channel (47). The carrier (44) is located on the outlet side of the straight flow channel (47).

4. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The rotor transfer pre-assembly mechanism (5) includes a gripper (51), a motor (52), a lifting cylinder (53), a base (54), a gear rotary motor, a gear plate (55), and a gear (56). The top of the base (54) is rotatably connected to the gear plate (55) and the gear (56). The gear (56) is fixed on the output shaft of the gear rotary motor. The body of the gear rotary motor is fixed inside the base (54). The gear plate (55) meshes with the gear (56). The cylinder body of the lifting cylinder (53) is fixed on the gear plate (55). A connecting rod is fixed on the piston rod of the lifting cylinder (53). The body of the motor (52) is fixed at the end of the connecting rod. The gripper (51) is fixed on the output shaft of the motor (52).

5. The automatic assembly system for sander rotor and fan blades according to claim 4, characterized in that, A limit rod (57) is fixed on one side of the base (54), and a stop rod (58) for releasing the limit rod (57) is fixed on the cylinder body of the lifting electric cylinder (53).

6. The automatic assembly system for sander rotor and fan blades according to claim 4, characterized in that, The base (54) is slidably connected to the horizontal straight rail (59). A linear moving mechanism (50) is installed between the base (54) and the horizontal straight rail (59). The linear moving mechanism (50) consists of a drive gear, a rack, and a motor. The output shaft of the motor is fixed with a drive gear. The drive gear meshes with the rack, and the rack is fixed to the bottom of the base (54).

7. The automatic assembly system for sander rotor and blades according to claim 1, characterized in that, The fan blade mounting hole cleaning mechanism (6) includes an air nozzle (61), an air pump, a roller brush (62), a roller brush rotary motor, and a single-rod cylinder (63). The air nozzle (61) is connected to the air pump, the roller brush (62) is fixed on the output shaft of the roller brush rotary motor, and the body of the roller brush rotary motor is fixed on the piston rod of the single-rod cylinder (63).

8. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The detection mechanism (7) is a CCD camera.

9. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The product discharge mechanism (8) includes a multi-axis robot and a gripper, with the gripper mounted on the multi-axis robot.

10. The automatic assembly system for sander rotor and fan blades according to claim 1, characterized in that, The pressure mechanism (9) includes a hydraulic cylinder (91), a secondary hydraulic cylinder (92), a pressure block (93), a spring (94), and a connecting seat (95). The piston rod end of the hydraulic cylinder (91) is fixed on the cylinder body of the secondary hydraulic cylinder (92). A connecting seat (95) is fixed on the piston rod of the secondary hydraulic cylinder (92). A pressure block (93) is slidably connected to the connecting seat (95). A spring (94) is connected between the pressure block (93) and the connecting seat (95). A tapered groove is provided at the bottom end of the pressure block (93).

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