Polishing device and polishing method for manufacturing lighting fixture

Abstract

The application discloses a polishing device and a polishing method for manufacturing lighting lamps, which comprises a conveyor table, two conveying belts are arranged on the two sides of the inside of the conveyor table, a sliding plate is fixedly connected between the two conveying belts, a bearing mechanism for placing a lamp to be polished is arranged on the sliding plate, symmetrical fixing seats are fixedly connected to the two side outer walls of the conveyor table, a machine box is slidably connected to each of the two fixing seats, the lamp to be processed is placed on the U-shaped support of the bearing mechanism, the bearing mechanism is connected with the conveying belt through the sliding plate, when the conveying belt is started, the bearing mechanism on the sliding plate is gradually moved to the rack by the conveying belt, after the gear at the bottom end of the first shaft rod is in contact with the rack, the rotating disc is rotated by 90 degrees with the first shaft rod as the axis through the meshing of the rack and the gear on the horizontal plate, which is convenient for subsequent alignment and polishing, the degree of automation is high, the processing efficiency of the lamp can be improved, and the labor cost is saved.

Description

Technical Field

[0001] This invention belongs to the technical field of lighting manufacturing, specifically relating to a grinding device and grinding method for manufacturing lighting fixtures. Background Technology

[0002] In lamp manufacturing, the lamp tube opening is ground to ensure the flatness of the lamp tube end and facilitate the sealing operation. However, existing equipment for lamp tube sealing and grinding has the problem of not being able to easily fix the lamp tube during the grinding process.

[0003] Application CN202010880564.4 discloses a lamp tube sealing and polishing device for lamp production, including an installation frame with two processing chambers (upper and lower) inside. A motor set is provided on the side of the processing chamber, and a polishing component that works with the motor set is installed inside the processing chamber. The motor set includes a first drive motor installed at the lower position and a second drive motor installed at the upper position. The polishing component includes two clamping mechanisms that are slidably installed with a first guide slide rod and two polishing mechanisms that are slidably installed with a second guide slide rod. The clamping mechanism includes a clamping seat and an L-shaped docking frame constructed on one side of the upper end face of the clamping seat. The polishing mechanism includes a movable seat and a docking ring constructed at the bottom end of the movable seat.

[0004] Application number CN201922067281.3 discloses a lamp tube sealing and grinding device for lamp production. The lamp tube sealing and grinding device includes a grinding table; two station plates, both of which are fixedly installed on the top of the grinding table; a horizontal connecting plate, which is fixedly installed on the top of the two station plates; a first threaded rod, which is rotatably installed on one side of the two station plates that are close to each other; a second threaded rod, which is rotatably installed on one side of the two station plates that are close to each other; two gears, which are respectively fixedly sleeved on one end of the first threaded rod and the second threaded rod; and a transmission chain, which is sleeved on the two gears.

[0005] The technical solution proposed in the above document still has the following problems: the placement and fixing of lamp tubes is troublesome and time-consuming, the degree of automation is low, which affects production efficiency, the grinding precision is not high and the wear of the blade on the lamp tube is large, and the debris and residue left on the lamp tube can easily affect the next process. Summary of the Invention

[0006] The purpose of this invention is to provide a grinding device and grinding method for manufacturing lighting fixtures, so as to solve the problems of cumbersome operation, large wear and residue on lamp tubes mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for manufacturing lighting fixtures, comprising a conveyor platform, two conveyor belts arranged on both sides of the conveyor platform, a slide plate fixedly connected between the two conveyor belts, a bearing mechanism for placing lamp tubes to be ground on the slide plate, symmetrically arranged fixed seats fixedly connected to the outer walls of both sides of the conveyor platform, a housing slidably connected to each of the two fixed seats, a reversing mechanism for rotating the bearing mechanism during conveying and oriented the two ends of the lamp tubes toward the housing between the two housings, a pushing mechanism for pushing and retracting the housing on the fixed seats, a clamping mechanism for holding the two ends of the lamp tubes inside the housing, a grinding mechanism for grinding the ends of the lamp tubes in conjunction with the pushing mechanism on the housing, and an energy storage device installed below the bearing mechanism for swinging the lamp tubes to clean debris after grinding.

[0008] Preferably, the bearing mechanism includes a rotating disk, which is rotatably connected to the slide plate. A U-shaped bracket is fixedly connected to the upper surface of the rotating disk, and one end of a first shaft is fixedly connected to the lower surface of the rotating disk. A gear is fixedly connected to the other end of the first shaft.

[0009] Preferably, the energy storage device includes a torsion spring sleeved on the outside of the first shaft, one end of the torsion spring being fixedly connected to a gear, and the other end of the torsion spring being fixedly connected to a sliding plate.

[0010] Preferably, the reversing mechanism includes a horizontal plate, both ends of which are fixedly connected to the inner wall of the conveyor platform, and a rack is fixedly connected to the horizontal plate, the rack meshing with a gear.

[0011] Preferably, the propulsion mechanism includes a cylinder, which is fixedly mounted on the side wall of the fixed base. A fixed plate is fixedly connected to the side wall of the housing, and the output end of the cylinder is fixedly connected to the fixed plate.

[0012] Preferably, the clamping mechanism includes two symmetrically distributed bidirectional clamping plates, two guide rods are fixedly connected to the inner wall of the chassis, the bidirectional clamping plates are slidably connected to the guide rods, a second motor is fixedly installed on one side of the outer wall of the chassis, a second shaft is fixedly connected to the output end of the second motor, and two external threads with opposite thread directions are provided on the outer wall of the second shaft, and the two bidirectional clamping plates are respectively connected to the two threaded sections of the second shaft.

[0013] Preferably, a semi-clamping ring is fixedly connected to the inner wall of the bidirectional clamping plate, and a soft sliding sleeve is fixedly connected to the inner ring wall of the semi-clamping ring.

[0014] Preferably, the grinding mechanism includes a first motor, which is fixedly mounted on the top of the housing. A grinding disc is fixed to the output shaft end of the first motor, and a through hole is provided on the outer wall of the housing.

[0015] A polishing method for manufacturing lighting fixtures includes the following steps:

[0016] S1. Place the lamp tube that needs to be polished on the carrier mechanism, turn on the conveyor belt, and the carrier mechanism on the slide moves with the conveyor belt. When the slide reaches the middle position of the two boxes, the conveyor belt stops moving forward. At the same time, under the action of the reversing mechanism, the carrier mechanism rotates the lamp tube 90 degrees. At this time, the two ends of the lamp tube are roughly aligned with the two boxes.

[0017] S2. The propulsion mechanism drives the housing to move laterally inward on the fixed seat, thus approaching the end of the lamp tube. Then, the clamping mechanism clamps the lamp tube on both sides, gradually aligning the lamp tube. When the cylinder drives the housing to move laterally inward on the fixed seat, both ends of the lamp tube can pass through the holes in the housing on both sides. Simultaneously, the grinding mechanism is activated, and the grinding process of both ends of the lamp tube is completed under the pull of the propulsion mechanism.

[0018] S3. After polishing, the clamps on both ends of the lamp tube are released. The push mechanism drives the machine box to move laterally outward on the fixed seat. When the machine box slides out from the outer end of the lamp tube, the conveyor belt continues to run. Because the energy storage device stores energy during the above movement, it can release energy after polishing to drive the lamp tube to swing and clean the residual debris and residue on the lamp tube. As the energy decreases, the lamp tube gradually returns to static and is conveyed out of the conveyor table along the initial posture.

[0019] Compared with existing polishing equipment technology, the present invention provides a polishing device for manufacturing lighting fixtures, which has the following advantages:

[0020] 1. This invention places the lamp tube to be processed on a U-shaped bracket of a carrying mechanism, which is connected to a conveyor belt via a sliding plate. When the conveyor belt is turned on, the conveyor belt can gradually move the carrying mechanism on the sliding plate toward the rack. When the gear at the bottom of the first shaft contacts the rack, the meshing action of the rack and gear on the horizontal plate causes the rotating disk to rotate 90 degrees around the first shaft as the axis, which facilitates subsequent alignment and polishing. It has a high degree of automation, which can improve the processing efficiency of lamps, save labor costs, and the inlet and outlet are stable and orderly, which can be easily used for large-scale mechanization and improve processing efficiency.

[0021] 2. This invention uses a cylinder to drive the housing to move laterally inward on the fixed base, thus approaching the end of the lamp tube. The second motor drives the second shaft to rotate. Due to the threaded relationship between the second shaft and the two-way clamping plates, and under the sliding limit of the guide rods on both sides, the two-way clamping plates move inward simultaneously. The two-way clamping plates then clamp the lamp tube on both sides, gradually centering and aligning the lamp tube. This improves the grinding accuracy and allows for a certain degree of flexibility in lamp tube placement, eliminating the need for special installation and fixing. Furthermore, the two-way clamping plates do not exert any force on the lamp tube during the grinding process, thus preventing damage to the lamp tube and providing effective protection.

[0022] 3. In this invention, the cylinder drives the housing to move laterally inward on the fixed base. The two ends of the lamp tube can pass through the through holes on both sides of the housing. The first motor can be turned on, and the first motor on the outside drives the grinding disc to rotate. The grinding process is completed under the pull of the cylinder, which can reduce the wear on the lamp tube and protect the lamp tube from damage. The lamp tube end with burrs is passed through the through hole, which makes it easy to operate the cylinder and drive the grinding disc to contact and grind the lamp tube at the outer end, thus improving the grinding accuracy.

[0023] 4. In this invention, the cylinder drives the housing to move laterally inward on the fixed base. The two ends of the lamp tube can pass through the housing on both sides and the second motor reverses to release the two ends of the lamp tube from the clamping of the bidirectional clamping plate. The cylinder pushes the housing to move laterally outward on the fixed base. When the housing slides out from the outer end of the lamp tube, the conveyor belt continues to run. When the gear and rack disengage, it reciprocates and swings under the action of the torsion spring, which can quickly shake off the residual debris and residue on the lamp tube, keep the lamp tube surface clean, and facilitate subsequent processing. After gradually returning to static state, it is conveyed out of the conveyor table along the initial posture, which is convenient for the next process to receive and further process. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of a grinding device for manufacturing lighting fixtures proposed in this invention;

[0026] Figure 2 The present invention proposes Figure 1 A magnified view of the structure at point A in the middle;

[0027] Figure 3 The present invention proposes Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0028] Figure 4 This is a schematic diagram of the load-bearing mechanism structure proposed in this invention;

[0029] In the diagram: 1. Conveyor platform; 2. Conveyor belt; 3. Slide plate; 4. Bearing mechanism; 5. Reversing mechanism; 6. Fixed base; 7. Chassis; 8. Grinding mechanism; 9. Propulsion mechanism; 10. Clamping mechanism; 41. U-shaped bracket; 42. Rotary disk; 43. First shaft; 44. Torsion spring; 45. Gear; 51. Rack; 52. Horizontal plate; 81. First motor; 82. Grinding cutter head; 91. Cylinder; 92. Fixed plate; 101. Second motor; 102. Second shaft; 103. Two-way clamping plate; 104. Guide rod; 105. Semi-clamping ring; 106. Soft sliding sleeve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-4 This invention provides a technical solution: a grinding device for manufacturing lighting fixtures, including a conveyor platform 1. Two conveyor belts 2 are arranged on both sides inside the conveyor platform 1. A slide plate 3 is fixedly connected between the two conveyor belts 2. A bearing mechanism 4 for placing lamp tubes to be ground is arranged on the slide plate 3. The bearing mechanism 4 includes a rotating disk 42, which is rotatably connected to the slide plate 3. A U-shaped bracket 41 is fixedly connected to the upper surface of the rotating disk 42. A friction pad can be attached to the inner arc of the U-shaped bracket 41 to increase the friction between the lamp tube and the light tube. During the transmission process or when shaking, the lamp tube is thrown off the U-shaped bracket 41. The lamp tube to be ground can be placed on the U-shaped bracket 41 and then continuously transported forward under the transmission action of the conveyor belts 2. One end of a first shaft 43 is fixedly connected to the lower surface of the rotating disk 42. A gear 45 is fixedly connected to the other end of the first shaft 43. A torsion spring 44 is sleeved on the outside of the first shaft 43. One end of the torsion spring 44 is fixedly connected to the gear 45, and the other end of the torsion spring 44 is fixedly connected to the slide plate 3.

[0032] It should be noted that symmetrically arranged fixed seats 6 are fixedly connected to the outer walls on both sides of the conveyor platform 1. Each fixed seat 6 is slidably connected to a housing 7. A reversing mechanism 5 is provided between the two housings 7 to enable the carrying mechanism 4 to rotate during the conveying process and to align the two ends of the lamp tube towards the housing 7. The reversing mechanism 5 includes a horizontal plate 52. The two ends of the horizontal plate 52 are fixedly connected to the inner wall of the conveyor platform 1. A rack 51 is fixedly connected to the horizontal plate 52. The rack 51 meshes with the gear 45. When the slide plate 3 moves closer to the horizontal plate 52 due to the transmission action of the conveyor belt 2, the carrying mechanism 4 rotates 90 degrees through the meshing action of the rack 51 and the gear 45 on the horizontal plate 52.

[0033] It is worth noting that the fixed base 6 is equipped with a propulsion mechanism 9 for pushing the retractable housing 7. The propulsion mechanism 9 includes a cylinder 91, which is fixedly installed on the side wall of the fixed base 6. A fixed plate 92 is fixedly connected to the side wall of the housing 7. The output end of the cylinder 91 is fixedly connected to the fixed plate 92. The cylinder 91 pushes the housing 7 to move laterally, thereby allowing it to approach the end of the lamp tube.

[0034] It should be noted that the housing 7 is equipped with a clamping mechanism 10 for holding both ends of the lamp tube. The clamping mechanism 10 includes two symmetrically distributed bidirectional clamping plates 103. Two guide rods 104 are fixedly connected to the inner wall of the housing 7. The bidirectional clamping plates 103 are slidably connected to the guide rods 104. A second motor 101 is fixedly installed on one outer wall of the housing 7. A second shaft 102 is fixedly connected to the output end of the second motor 101. The outer wall of the second shaft 102 is provided with two external threads with opposite thread directions. The bidirectional clamping plate 103 is threadedly connected to the two sections of the second shaft 102. A half-clamping ring 105 is fixedly connected to the inner wall of the bidirectional clamping plate 103. A soft sliding sleeve 106 is fixedly connected to the inner ring wall of the half-clamping ring 105. Driven by the second motor 101, the second shaft 102 is rotated. Through the threaded relationship between the second shaft 102 of the second motor 101 and the bidirectional clamping plate 103, and under the sliding limit of the guide rods 104 on both sides, the two bidirectional clamping plates 103 move inward or outward at the same time.

[0035] It is worth noting that the housing 7 is equipped with a grinding mechanism 8 for grinding the ends of the lamp tube in conjunction with the propulsion mechanism 9. The grinding mechanism 8 includes a first motor 81, which is fixedly installed on the top of the housing 7. A grinding disc 82 is fixed to the output shaft end of the first motor 81. A through hole is provided on the outer wall of the housing 7 so that both ends of the lamp tube can pass through the through hole. Then, the first motor 81 on the outside drives the grinding disc 82 to rotate for grinding.

[0036] A grinding method for manufacturing lighting fixtures includes the following steps: When in use, the lamp tube to be ground can be placed on the U-shaped bracket 41 of the bearing mechanism 4, the conveyor belt 2 is turned on, and the bearing mechanism 4 on the slide plate 3 is gradually brought closer to the rack 51 by the conveyor belt 2. When the gear 45 at the bottom of the first shaft 43 contacts the rack 51, the meshing action of the rack 51 and the gear 45 on the cross plate 52 causes the rotating disk 42 to rotate 90 degrees around the first shaft 43 as the axis. At this time, the two ends of the lamp tube are roughly aligned with the two side housings 7.

[0037] The cylinder 91 drives the housing 7 to move laterally inward on the fixed seat 6, thus approaching the end of the lamp tube. Then, the second motor 101 is turned on, and the second shaft 102 is rotated under the drive of the second motor 101. Through the threaded relationship between the second shaft 102 of the second motor 101 and the two-way clamping plate 103, and under the sliding limit of the guide rods 104 on both sides, the two two-way clamping plates 103 move inward at the same time, and then clamp the two sides of the lamp tube (not clamping tightly, but only limiting the lamp tube), so that the lamp tube is gradually straightened. When the cylinder 91 drives the housing 7 to move laterally inward on the fixed seat 6, the two ends of the lamp tube can pass through the through holes of the housing 7 on both sides. At the same time, the first motor 81 is turned on, and the outer first motor 81 drives the grinding disc 82 to rotate, and the grinding process is completed under the pull of the cylinder 91.

[0038] After grinding, the second motor 101 reverses to disengage both ends of the lamp tube from the clamping of the bidirectional clamping plate 103. The cylinder 91 pushes the housing 7 to move laterally outward on the fixed seat 6. When the housing slides out from the outer end of the lamp tube, the conveyor belt 2 continues to run. During the above movement, the rotation of the gear 45 causes the torsion spring 44 to deform, giving the torsion spring 44 elastic potential energy. When the gear 45 disengages from the rack 51, it reciprocates under the action of the torsion spring 44, which can quickly shake off the remaining debris and residue on the lamp tube and gradually restore it to static state, and then it is conveyed out of the conveyor table 1 along the initial posture.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for manufacturing lighting fixtures, comprising a conveyor table (1), wherein two conveyor belts (2) are arranged on both sides inside the conveyor table (1), and a sliding plate (3) is fixedly connected between the two conveyor belts (2), characterized in that: The slide plate (3) is provided with a bearing mechanism (4) for placing the lamp tube to be polished. The two outer walls of the conveyor platform (1) are fixedly connected with symmetrically arranged fixed seats (6). The two fixed seats (6) are slidably connected with a housing (7). The two housings (7) are provided with a reversing mechanism (5) for rotating the bearing mechanism (4) during the conveying process and for turning the two ends of the lamp tube toward the housing (7). The fixed seat (6) is provided with a pushing mechanism (9) for pushing the shrinking housing (7). The housing (7) is provided with a clamping mechanism (10) for clamping the two ends of the lamp tube. The housing (7) is provided with a polishing mechanism (8) for polishing the ends of the lamp tube in conjunction with the pushing mechanism (9). An energy storage device is also installed below the bearing mechanism (4) for driving the lamp tube to swing and clean up the debris after polishing. The bearing mechanism (4) includes a rotating disk (42), which is rotatably connected to the slide plate (3). A U-shaped bracket (41) is fixedly connected to the upper surface of the rotating disk (42), and one end of a first shaft (43) is fixedly connected to the lower surface of the rotating disk (42). A gear (45) is fixedly connected to the other end of the first shaft (43). The energy storage device includes a torsion spring (44) sleeved on the outside of the first shaft (43), one end of the torsion spring (44) is fixedly connected to the gear (45), and the other end of the torsion spring (44) is fixedly connected to the slide plate (3); The reversing mechanism (5) includes a horizontal plate (52), the two ends of which are fixedly connected to the inner wall of the conveyor platform (1), and a rack (51) is fixedly connected to the horizontal plate (52), which meshes with a gear (45). The propulsion mechanism (9) includes a cylinder (91), which is fixedly installed on the side wall of the fixed base (6). A fixed plate (92) is fixedly connected to the side wall of the housing (7), and the output end of the cylinder (91) is fixedly connected to the fixed plate (92). The clamping mechanism (10) includes two symmetrically distributed bidirectional clamping plates (103). Two guide rods (104) are fixedly connected to the inner wall of the housing (7). The bidirectional clamping plates (103) are slidably connected to the guide rods (104). A second motor (101) is fixedly installed on one side of the outer wall of the housing (7). A second shaft (102) is fixedly connected to the output end of the second motor (101). Two external threads with opposite thread directions are provided on the outer wall of the second shaft (102). The two bidirectional clamping plates (103) are respectively connected to the two threads of the second shaft (102). A semi-clamping ring (105) is fixedly connected to the inner wall of the bidirectional clamping plate (103), and a soft sliding sleeve (106) is fixedly connected to the inner ring wall of the semi-clamping ring (105). The grinding mechanism (8) includes a first motor (81), which is fixedly installed on the top of the housing (7). A grinding disc (82) is fixed to the output shaft end of the first motor (81), and a through hole is provided on the outer side wall of the housing (7).

2. A grinding method for manufacturing lighting fixtures, comprising a grinding apparatus for manufacturing lighting fixtures according to claim 1, characterized in that, Includes the following steps: S1. Place the lamp tube that needs to be polished on the carrier mechanism (4), turn on the conveyor belt (2), and the carrier mechanism (4) on the slide plate (3) will move along the conveyor belt (2). When the slide plate (3) reaches the middle position of the two boxes (7), the conveyor belt (2) will stop moving forward. At the same time, under the action of the reversing mechanism (5), the carrier mechanism (4) will rotate the lamp tube 90 degrees. At this time, the two ends of the lamp tube are roughly aligned with the two boxes (7). S2. The propulsion mechanism (9) drives the housing (7) to move laterally inward on the fixed seat (6) and then approach the end of the lamp tube. Then, the clamping mechanism (10) clamps the lamp tube on both sides, so that the lamp tube is gradually straightened. When the cylinder (91) drives the housing (7) to move laterally inward on the fixed seat (6), the two ends of the lamp tube can pass through the holes of the housing (7) on both sides. The grinding mechanism (8) is opened at the same time, and the grinding process of the two ends of the lamp tube is completed under the pull of the propulsion mechanism (9). S3. After polishing, release the clamps on both ends of the lamp tube. The push mechanism (9) drives the housing (7) to move laterally outward on the fixed seat (6). When the housing (7) slides out from the outer end of the lamp tube, the conveyor belt (2) continues to run. As the energy storage device stores energy during the above movement, it can release energy after polishing to drive the lamp tube to swing and clean the residual debris and residue on the lamp tube. As the energy decreases, the lamp tube gradually returns to static and is conveyed out of the conveyor platform (1) along the initial posture.

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