Screw tightening machine for lighting equipment

Abstract

The invention belongs to the technical field of screw tightening machine equipment, and particularly relates to a screw tightening machine for lighting equipment. And the workbench is placed above the bottom plate through supporting legs. Through the workpiece locking module, by means of a double-end lead screw, a movable block, a clamping plate, a limiting unit and other assemblies, an illumination workpiece can be rapidly and accurately positioned and stably clamped, shaking during machining is effectively prevented, and the precision and stability of screw tightening operation are guaranteed; the vibration module drives a rotary disc and other components through a driving motor, so that an abutting block impacts a material frame at high frequency, screws are evenly distributed between guide plates, the feeding efficiency is improved, it is ensured that the screws enter the feeding module in a correct posture, and a guarantee is provided for tightening operation. The screw feeding module and the tightening module are cooperatively matched, the feeding module accurately pushes screws to the tightening module through a rotating wheel and other assemblies, the tightening module achieves rapid tightening through a movable rod and other assemblies, manual intervention is reduced, the production efficiency is improved, and automation and high efficiency of screw tightening operation are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of screw tightening machines, and particularly to a screw tightening machine for lighting equipment. Background Art

[0002] Currently, in many manufacturing industries such as electronics, mechanical hardware, toys, and furniture, the method of using screws for assembly connection is extremely widely applied. At present, most of the screw tightening assembly operations are to manually place the screws into the screw holes one by one and then tighten them one by one with a screwdriver. The production efficiency is low and the labor intensity is high, which is very unfavorable for the expansion of the enterprise production scale and the improvement of benefits.

[0003] For example, Chinese Patent CN118417864B discloses a screw tightening device for a printer. The present invention relates to the technical field of screw tightening, including a picking frame. The inner wall of the picking frame is fixedly connected with a working cylinder. The outer wall of the working cylinder is provided with a limiting groove. A telescopic column is slidably connected to the inner wall of the working cylinder. By setting the working cylinder and the clamping plate, the movement of the tightening head drives the telescopic column to slide along the limiting groove on the outer wall of the working cylinder against the elastic force of the working spring. The sliding of the telescopic column drives the three connecting rods on the outer wall of the lifting block to move synchronously. Then, the movement of the connecting rods drives the clamping plate to slide along the outer wall of the picking frame and fit with the side wall of the working screw. At the same time, the sliding of the telescopic column drives the rotating column to abut against the positioning groove, realizing the positioning operation after the clamping plate fits with the working screw, avoiding the deviation of the working screw during the picking process and inaccurate positioning of the working screw, resulting in damage to the installation part of the printer main body.

[0004] However, when the above device is used, first, it is necessary to accurately move the material taking tray to directly above the material taking groove by means of a guide rail. Subsequently, the screw is clamped and fixed by the clamping plate. After the clamping is completed, it is necessary to rely on the guide rail again to transfer the clamped and fixed screw to the working area. Each step in the whole process requires a certain amount of time to complete the movement and positioning of the guide rail and the action execution of the clamping plate, resulting in a cumbersome and time-consuming whole work process, and thus it is difficult to significantly improve the work efficiency. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a screw tightening machine for lighting equipment to solve the problems that when the above device is used, first, it is necessary to accurately move the material taking tray to directly above the material taking groove by means of a guide rail. Subsequently, the screw is clamped and fixed by the clamping plate. After the clamping is completed, it is necessary to rely on the guide rail again to transfer the clamped and fixed screw to the working area. Each step in the whole process requires a certain amount of time to complete the movement and positioning of the guide rail and the action execution of the clamping plate, resulting in a cumbersome and time-consuming whole work process, and thus it is difficult to significantly improve the work efficiency.

[0006] A screw tightening machine for a lighting device, comprising a bottom plate; a workbench placed above the bottom plate through support legs; a placing plate connected to the top of the workbench for carrying lighting workpieces to be processed; a workpiece locking module arranged outside the placing plate for limiting and fixing the lighting workpiece; a gantry movably arranged on the top of the workbench; a screw feeding module arranged on the left side of the gantry for orderly conveying screws into the tightening module to provide material guarantee for the tightening operation; a vibration module connected to the right side of the screw feeding module, which vibrates the screws in the material frame to make the screws evenly distributed between two guide plates; a tightening module arranged on the right side of the screw feeding module, which cooperates with the screw feeding module to tighten the screws to the designated installation area of the lighting workpiece; an X module arranged on the top of the workbench to provide a movement guide for the gantry in the X-axis direction; a Y module arranged on the left side of the gantry for providing the relevant execution components with movement in the Y-axis direction; a Z module connected to the left side of the Y module and connected to the screw feeding module to provide movement control for the screw feeding module and relevant tightening components in the Z-axis direction, so as to realize precise positioning and tightening operation in three-dimensional space.

[0007] Preferably, the workpiece locking module includes fixing plates I welded to the left and right sides of the top of the placing plate. A double-headed screw rod is rotatably connected between the two fixing plates I. A stepping motor I is fixedly installed outside the right fixing plate I. The output end of the stepping motor I extends between the two fixing plates I and is fixedly connected to the double-headed screw rod. Movable blocks are threadedly connected to the outer sides of both ends of the double-headed screw rod. Clamping plates are welded to the front sides of the movable blocks. An expansion rod is fixedly connected between the two clamping plates. A limiting unit is arranged on the top of the placing plate.

[0008] Preferably, the limiting unit includes inner notch openings formed on the outside of the placing plate. Lifting springs are arranged at the four corners of the bottom of the inner notch openings. The bottom ends of the lifting springs are fixedly connected to the inner wall of the placing plate. The top ends of the lifting springs are fixedly connected to a double-sided arc plate. Slide grooves I are formed on the opposite sides of the inner notch openings. The double-sided arc plate slides up and down in the inner notch opening through the slide grooves I.

[0009] Preferably, the screw feeding module includes a connecting rod connected to the inside of the Z module. The end of the connecting rod far from the Z module is fixedly connected to an inclined panel. Two guide plates are arranged on the top of the inclined panel. The distance between the two guide plates is greater than the diameter of the screw rod of the screw and less than the diameter of the head of the screw. A material frame is communicated with the tops of the two guide plates. A fixing plate II is welded to the rear side of the inclined panel. A stepping motor II is fixedly installed outside the fixing plate II. The output end of the stepping motor II extends to the front side of the fixing plate II and is fixedly connected to a rotating wheel. A plurality of pushing plates are equidistantly arranged on the outer circumference of the rotating wheel.

[0010] Preferably, two groups of bearing plates are fixedly connected to the left side of the inclined panel, a feed pipe is rotatably connected between the two groups of bearing plates via a pin shaft, a matching plate is welded to the outer side of one group of bearing plates, a pressure sensor is arranged on the side of the matching plate close to the feed pipe, a fixing plate three is welded to the bottom of the inclined panel, a thrust spring is fixedly connected between the fixing plate three and the outer wall of the feed pipe, and connecting plates are welded to the front and rear sides of the inclined panel.

[0011] Preferably, the vibration module includes a mounting plate welded to the outside of the material frame, a driving motor is fixedly mounted on the rear side of the mounting plate, the output end of the driving motor extends to the front side of the mounting plate and is fixedly connected to a turntable, the front side of the mounting plate is rotatably connected to a rotating rod, a rectangular block is fixedly connected to the outer surface of the rotating rod, a through groove is provided on the outside of the rectangular block, a matching rod is fixedly connected to the front side of the turntable, and the matching rod slides inside the through groove.

[0012] Preferably, a fan-shaped tooth plate is fixedly connected to the bottom of the rectangular block, a T-shaped tooth plate is meshedly connected to the outer side of the fan-shaped tooth plate, the T-shaped tooth plate slides on the outer side of the mounting plate, and a resistance block is fixedly connected to one end of the T-shaped tooth plate close to the material frame.

[0013] Preferably, the tightening module includes a cavity rod fixedly connected to the connecting plate, the outer side of the cavity rod is provided with an adaptation groove matching the feed pipe, a movable rod is arranged inside the cavity rod, a screw bit matching the screw is arranged at the bottom of the movable rod, two slide grooves are equidistantly arranged on the outer circumference of the upper end of the movable rod, a transmission gear is arranged on the outer side of the movable rod, the transmission gear slides on the outer side of the movable rod through the two slide grooves, a rotating frame is fixedly connected to the bottom of the transmission gear, a load-bearing plate is fixedly connected to the top of the cavity rod, and a notch matching the movable rod is arranged on the outer surface of the load-bearing plate.

[0014] Preferably, the transmission gear rotates above the load plate through a rotating frame, a stepper motor three is fixedly installed at the bottom of the load plate, the output end of the stepper motor three extends to the top of the load plate and is fixedly connected to a driving gear, the driving gear is meshingly connected with the transmission gear, an L-shaped mounting plate one is welded on the top of the load plate, an electric push rod is fixedly installed on the top of the L-shaped mounting plate one, the telescopic end of the electric push rod extends to the lower side of the L-shaped mounting plate one and is fixedly connected to a rotating block, and the rotating block rotates at the top of the movable rod.

[0015] Preferably, two groups of funnel-shaped frames are provided at the bottom of the cavity rod, and a plurality of L-shaped mounting plates 2 are provided on the outer side of the bottom end of the cavity rod, and the L-shaped mounting plates 2 are fixedly connected to the two groups of funnel-shaped frames through retaining springs.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes precise positioning and firm clamping of the lighting workpiece through the design of the workpiece locking module. By utilizing the synergistic effect of components such as the double-headed screw, the movable block, the clamping plate and the limit unit, the lighting workpiece can be quickly and reliably fixed on the placement plate, effectively avoiding the shaking of the workpiece during the processing, thereby ensuring the accuracy and stability of the screw tightening operation and improving the product quality.

[0017] 2. The present invention solves the problem of screw arrangement in the material frame through the design of the vibration module. The driving motor drives the movement of the turntable, rectangular block, fan-shaped tooth plate and T-shaped tooth plate, so that the resistance block can hit the material frame at a high frequency, prompting the screws to be evenly distributed between the guide plates. The design not only improves the efficiency of screw feeding, but also ensures that the screws enter the feeding module in the correct posture, providing a strong guarantee for subsequent tightening operations.

[0018] 3. The present invention realizes the automation and efficiency of screw tightening operation through the coordinated cooperation of the screw feeding module and the tightening module. The screw feeding module can accurately push the screws into the tightening module through the ingenious design of components such as the rotating wheel, the push plate and the feed pipe, while the tightening module can realize the rapid tightening of the screws through the cooperation of components such as the movable rod, the screw bit, the transmission gear and the electric push rod, which not only reduces manual intervention and improves production efficiency, but also further improves product quality and production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the screw tightening machine for lighting equipment of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the workpiece locking module of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the screw feeding module of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of a screw feeding module of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the vibration module of the present invention; Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the tightening module of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the movable rod of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the tightening module of the present invention; Figure 9 For the present invention Figure 8 A schematic diagram of the partially enlarged three-dimensional structure in the middle.

[0020] In the figure: 1. Base plate; 2. Workbench; 3. Placement plate; 4. Workpiece locking module; 401. Fixed plate 1; 402. Double-headed screw; 403. Stepping motor 1; 404. Movable block; 405. Clamp; 406. Telescopic rod; 407. Limiting unit; 4071. Inner notch; 4072. Lifting spring; 4073. Slide 1; 4074. Bidirectional arc plate; 5. Gantry; 6. Screw feeding module; 601. Connecting rod; 602. Inclined plate; 603. Guide plate; 604. Material frame; 605. Rotating wheel; 606. Push plate; 607. Fixed plate 2; 608. Stepper motor 2; 609. Loading plate; 610. Feeding pipe; 611. Matching plate; 612. Pressure sensor; 613. Fixed plate 3; 614. Thrust spring; 615. Connecting plate; 7. Vibration module; 701. Mounting plate; 702. Driving motor; 703. Turntable; 704. Rotating rod; 705. Rectangular block; 706. Through slot; 707. Matching rod; 708. Fan-shaped tooth plate; 709. T-shaped tooth plate; 710. Resistance block; 8. Tightening module; 801. Cavity rod; 802. Adapter slot; 803. Movable rod; 804. Slide slot 2; 805. Transmission gear; 806. Rotation frame; 807. Batch head; 808. Stepper motor 3; 809. Driving gear; 810. L-shaped mounting plate 1; 811. Electric push rod; 812. Rotation block; 813. Funnel-shaped frame; 814. L-shaped mounting plate 2; 815. Positioning spring; 9. X module; 10. Y module; 11. Z module. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] Embodiment 1: As attached Figure 1 To Attachment Figure 9As shown in the figure, the present invention provides a screw tightening machine for lighting equipment, including a bottom plate 1; a workbench 2, placed above the bottom plate 1 through support legs; a placing plate 3, connected to the top of the workbench 2 for carrying lighting workpieces to be processed; a workpiece locking module 4, arranged outside the placing plate 3 for limiting and fixing the lighting workpiece; a gantry 5, movably arranged on the top of the workbench 2; a screw feeding module 6, arranged on the left side of the gantry 5 for orderly conveying screws into the tightening module 8 to provide material guarantee for the tightening operation; a vibration module 7, connected to the right side of the screw feeding module 6, and through vibrating the screws in the material frame 604, prompting the screws to be evenly distributed between the two guide plates 603; a tightening module 8, arranged on the right side of the screw feeding module 6, and through cooperation with the screw feeding module 6, tightening the screws to the designated installation area of the lighting workpiece; an X module 9, arranged on the top of the workbench 2 to provide a movement guide for the gantry 5 in the X-axis direction; a Y module 10, arranged on the left side of the gantry 5 for providing the relevant execution components to move in the Y-axis direction; a Z module 11, connected to the left side of the Y module 10 and connected to the screw feeding module 6, providing movement control for the screw feeding module 6 and the relevant tightening components in the Z-axis direction, so as to achieve precise positioning and tightening operation in three-dimensional space.

[0023] As can be seen from the above, when the device is in use, first place the lighting workpiece above the workbench 2, and clamp and fix the lighting workpiece through the workpiece locking module 4 to prevent the lighting workpiece from shaking during the processing. Then place a number of screws inside the material frame 604, and effectively arrange the screws in the material frame 604 between the two guide plates 603 through the vibration module 7. Then, through the screw feeding module 6, the screws are orderly pushed into the tightening module 8. At the same time, through the X module 9, the Y module 10 and the Z module 11, the screws in the tightening module 8 are made to contact the installation position of the lighting workpiece, and the screws are fixed inside the lighting workpiece through the tightening module 8, reducing the need for a manipulator to position and clamp the screws and optimizing the production steps.

[0024] Embodiment 2: As shown in the appendix Figure 2As shown in the figure, this embodiment is basically the same as the previous one. The difference is that the workpiece locking module 4 includes fixing plates 401 welded to the left and right sides of the top of the placement plate 3. A double-headed lead screw 402 is rotatably connected between the two fixing plates 401 on both sides. A stepping motor 401 is fixedly installed outside the fixing plate 401 on the right side. The output end of the stepping motor 403 extends between the two fixing plates 401 on both sides and is fixedly connected to the double-headed lead screw 402. Movable blocks 404 are threadedly connected to the outer sides of both ends of the double-headed lead screw 402. Clamping plates 405 are welded to the front sides of the movable blocks 404. A telescopic rod 406 is fixedly connected between the two clamping plates 405. A limiting unit 407 is arranged on the top of the placement plate 3. The limiting unit 407 includes an inner notch 4071 opened on the outside of the placement plate 3. Lifting springs 4072 are arranged at the four corners of the bottom of the inner notch 4071. The bottom ends of the lifting springs 4072 are fixedly connected to the inner wall of the placement plate 3. The top ends of the lifting springs 4072 are fixedly connected to a double-sided arc plate 4074. Slide grooves 4073 are opened on the opposite sides of the inner notch 4071. The double-sided arc plate 4074 slides up and down in the inner notch 4071 through the slide grooves 4073.

[0025] As can be seen from the above, the worker places the lighting workpiece on the top of the placement plate 3. The lifting spring 4072 is compressed under force, driving the double-sided arc plate 4074 to slide downward along the slide groove 4073. Then the worker pushes the lighting workpiece towards the telescopic rod 406 until the double-sided arc plate 4074 is reset due to the thrust of the lifting spring 4072, completing the primary positioning of the lighting workpiece. Then the stepping motor 403 is turned on. The stepping motor 403 drives the double-headed lead screw 402 to rotate. Then, through the guidance of the telescopic rod 406, the two movable blocks 404 approach each other until the two clamping plates 405 clamp and fix the lighting workpiece.

[0026] Embodiment 3: As shown in the appendix Figure 5As shown, this embodiment is basically the same as the previous embodiment, except that the vibration module 7 includes a mounting plate 701 welded to the outside of the material frame 604, a driving motor 702 is fixedly mounted on the rear side of the mounting plate 701, the output end of the driving motor 702 extends to the front side of the mounting plate 701, and is fixedly connected to a turntable 703, a rotating rod 704 is rotatably connected to the front side of the mounting plate 701, a rectangular block 705 is fixedly connected to the outer surface of the rotating rod 704, a through groove 706 is provided on the outer side of the rectangular block 705, a matching rod 707 is fixedly connected to the front side of the turntable 703, the matching rod 707 slides inside the through groove 706, a fan-shaped tooth plate 708 is fixedly connected to the bottom of the rectangular block 705, a T-shaped tooth plate 709 is meshedly connected to the outer side of the fan-shaped tooth plate 708, the T-shaped tooth plate 709 slides on the outer side of the mounting plate 701, and a resistance block 710 is fixedly connected to one end of the T-shaped tooth plate 709 close to the material frame 604.

[0027] As can be seen from the above, after placing a number of screws inside the material frame 604, the drive motor 702 is turned on, and the drive motor 702 drives the turntable 703 to rotate, and drives the rectangular block 705 to swing in a circle along the rotating rod 704 through the matching rod 707, and then drives the fan-shaped tooth plate 708 to drive the T-shaped tooth plate 709 to slide back and forth along the outer side of the mounting plate 701, so that the resistance block 710 hits the material frame 604 at a high frequency, and then because the screws are "top-heavy", the screws in the material frame 604 are arranged in order between the two sets of guide plates 603, and because the resistance block 710 hits the inclined surface of the material frame 604 and the inclined plate 602 at a high frequency, the screws slide down in an orderly manner along the inclined direction of the inclined plate 602.

[0028] Embodiment 4: As attached Figure 3 To Attachment Figure 4As shown in the figure, this embodiment is basically the same as the previous embodiment, except that the screw feeding module 6 includes a connecting rod 601 internally connected to the Z module 11. One end of the connecting rod 601 away from the Z module 11 is fixedly connected with an inclined panel 602. Two groups of guide plates 603 are arranged at the top of the inclined panel 602. The distance between the two groups of guide plates 603 is greater than the diameter of the screw rod and less than the diameter of the screw head. A material frame 604 is communicated with the tops of the two groups of guide plates 603. A second fixing plate 607 is welded at the rear side of the inclined panel 602. A second stepping motor 608 is fixedly installed outside the second fixing plate 607. The output end of the second stepping motor 608 extends to the front side of the second fixing plate 607 and is fixedly connected with a rotating wheel 605. A plurality of push plates 606 are equidistantly arranged on the outer circumference of the rotating wheel 605. Two groups of bearing plates 609 are fixedly connected to the left side of the inclined panel 602. A feeding pipe 610 is rotatably connected between the two groups of bearing plates 609 through a pin shaft. A matching plate 611 is welded outside one of the bearing plates 609. A pressure sensor 612 is arranged on the side of the matching plate 611 close to the feeding pipe 610. A third fixing plate 613 is welded at the bottom of the inclined panel 602. A thrust spring 614 is fixedly connected between the third fixing plate 613 and the outer wall of the feeding pipe 610. Connecting plates 615 are welded on both the front and rear sides of the inclined panel 602.

[0029] As can be seen from the above, when the screw slides down along the inclination direction of the inclined panel 602, it stops sliding due to the blocking of a plurality of push plates 606 on the outer side of the rotating wheel 605 until the feeding pipe 610 compresses the thrust spring 614. The feeding pipe 610 rotates in the two groups of bearing plates 609 and contacts the pressure sensor 612. Then, the pressure sensor 612 activates the second stepping motor 608. The second stepping motor 608 drives the rotating wheel 605 to rotate. One screw is pushed to slide leftward through the push plate 606 until the screw passes through the guide plate 603 and falls due to its own weight. Since the distance between the feeding pipe 610 and the screw is very close when the feeding pipe 610 rotates in the two groups of bearing plates 609 and contacts the pressure sensor 612, the screw still falls into the interior of the feeding pipe 610 in the posture of "head up and feet down". Since the feeding pipe 610 always maintains an inclined state, it then enters the interior of the cavity rod 801 through the feeding pipe 610.

[0030] Embodiment Five: As shown in the attached Figure 6 to the attached Figure 9As shown in the figure, this embodiment is basically the same as the previous embodiment, except that the tightening module 8 includes a cavity rod 801 fixedly connected to the connecting plate 615. An adaptation groove 802 matching the material conveying pipe 610 is provided on the outer side of the cavity rod 801. An active rod 803 is arranged inside the cavity rod 801. A bit 807 matching the screw is provided at the bottom of the active rod 803. Slide grooves two 804 are equidistantly arranged on the outer circumference of the upper end of the active rod 803. A transmission gear 805 is arranged on the outer side of the active rod 803. The transmission gear 805 slides on the outer side of the active rod 803 through the slide grooves two 804. A rotating frame 806 is fixedly connected to the bottom of the transmission gear 805. A load-bearing plate is fixedly connected to the top of the cavity rod 801. A notch matching the active rod 803 is provided on the outer surface of the load-bearing plate. The transmission gear 805 rotates above the load-bearing plate through the rotating frame 806. A stepping motor three 808 is fixedly installed at the bottom of the load-bearing plate. The output end of the stepping motor three 808 extends above the load-bearing plate and is fixedly connected to a driving gear 809. The driving gear 809 is meshed with the transmission gear 805. An L-shaped mounting plate one 810 is welded to the top of the load-bearing plate. An electric push rod 811 is fixedly installed at the top of the L-shaped mounting plate one 810. The telescopic end of the electric push rod 811 extends to the lower side of the L-shaped mounting plate one 810 and is fixedly connected to a rotating block 812. The rotating block 812 rotates on the top of the active rod 803. Two funnel-shaped frames 813 are arranged at the bottom of the cavity rod 801. A number of L-shaped mounting plates two 814 are arranged on the outer side of the bottom end of the cavity rod 801. The L-shaped mounting plates two 814 are fixedly connected to the two funnel-shaped frames 813 through clamping springs 815.

[0031] As can be seen from the above, after the screw enters the cavity rod 801, the screw rod at the bottom of the screw will pass through the middle of the two groups of funnel-shaped frames 813 to be exposed, and through the X module 9, the Y module 10 and the Z module 11, it will be against the installation part of the lighting workpiece, and then the electric push rod 811 will be turned on, and the output end of the electric push rod 811 will drive the movable rod 803 to descend, and then it will contact with the feeding pipe 610 until the screw head 807 under the movable rod 803 contacts the screw. At this time, the feeding pipe 610 is rotated into the adapter groove 802 and contacts the inner wall of the cavity rod 801 due to the action of the thrust spring 614 and the two groups of bearing plates 609. At this time, the pressure sensor 612 is pressurized, causing the next screw to fall into the feeding pipe 610 and also contact the inner wall of the cavity rod 801. The electric push rod When the rod 811 presses the screw down through the movable rod 803, the stepper motor three 808 is turned on, and the stepper motor three 808 drives the driving gear 809 to rotate, and then drives the transmission gear 805 to rotate. The rotation of the transmission gear 805 drives the slidingly connected movable rod 803 to rotate synchronously, and the movable rod 803 drives the screw to rotate. At this time, the compression and positioning spring 815 of the screw head drives the two groups of funnel-shaped frames 813 to open until all the screw threads are connected to the inside of the lighting workpiece. Then the electric push rod 811 drives the movable rod 803 to rise, and the positioning spring 815 drives the two groups of funnel-shaped frames 813 to reset. The feed pipe 610 is reset under the action of the thrust spring 614, so that the next screw enters the cavity rod 801, thereby improving the continuity and timeliness of the lighting workpiece processing.

[0032] Working principle: When the device is used, first place the lighting workpiece on the workbench 2, the lifting spring 4072 is compressed, driving the two-way arc plate 4074 to slide downward along the slide groove 4073, and then the staff pushes the lighting workpiece in the direction of the telescopic rod 406 until the two-way arc plate 4074 is reset due to the thrust of the lifting spring 4072, completing the initial positioning of the lighting workpiece, and then turn on the stepper motor 403, the stepper motor 403 drives the double-headed screw 402 to rotate, and then through the guidance of the telescopic rod 406, the movable blocks 404 on both sides are close to each other until the clamping plates 405 on both sides clamp and fix the lighting workpiece; After placing a number of screws inside the material frame 604, the driving motor 702 is turned on, and the driving motor 702 drives the turntable 703 to rotate, and drives the rectangular block 705 to swing in a circle along the rotating rod 704 through the matching rod 707, thereby driving the fan-shaped tooth plate 708 to drive the T-shaped tooth plate 709 to slide back and forth along the outer side of the mounting plate 701, so that the resistance block 710 hits the material frame 604 at a high frequency, and then because the screws are "top-heavy", the screws in the material frame 604 are arranged in order between the two groups of guide plates 603, and because the resistance block 710 hits the inclined surface of the material frame 604 and the inclined plate 602 at a high frequency, the screws slide down in an orderly manner along the inclined direction of the inclined plate 602; When the screw slides down along the inclined direction of the inclined panel 602, it stops sliding due to the obstruction of several push plates 606 on the outer side of the rotating wheel 605 until the material conveying pipe 610 compresses the thrust spring 614. The material conveying pipe 610 rotates in the two groups of bearing plates 609 and contacts the pressure sensor 612. Then, the pressure sensor 612 activates the second stepping motor 608. The second stepping motor 608 drives the rotating wheel 605 to rotate, and pushes one of the screws to slide leftward through the push plate 606 until the screw passes through the guide plate 603 and falls due to its own weight. Since the material conveying pipe 610 is very close to the screw when it rotates in the two groups of bearing plates 609 and contacts the pressure sensor 612, the screw still falls into the interior of the material conveying pipe 610 in the posture of "head up and feet down". Since the material conveying pipe 610 always maintains an inclined state, it then enters the interior of the cavity rod 801 through the material conveying pipe 610; After the screw enters the interior of the cavity rod 801, the lead screw at the bottom of the screw will pass through the middle parts of the two funnel-shaped frames 813 and be exposed, and through the X module 9, Y module 10 and Z module 11, it is made to abut against the installation part of the lighting workpiece. Then, the electric push rod 811 is activated. The output end of the electric push rod 811 drives the movable rod 803 to descend, and then abuts against the material conveying pipe 610 until the bit 807 below the movable rod 803 abuts against the screw. At this time, due to the action of the thrust spring 614 and the two groups of bearing plates 609, the material conveying pipe 610 rotates into the fitting groove 802 and abuts against the inner wall of the cavity rod 801. At this time, the pressure sensor 612 is pressed, causing the next screw to fall into the material conveying pipe 610 and also abut against the inner wall of the cavity rod 801. When the electric push rod 811 presses the screw down through the movable rod 803, the third stepping motor 808 is activated. The third stepping motor 808 drives the driving gear 809 to rotate, and then drives the transmission gear 805 to rotate. The rotation of the transmission gear 805 drives the synchronously rotating movable rod 803 connected in a sliding manner. The movable rod 803 drives the screw to rotate. At this time, the head of the lead screw compresses the clamping spring 815 and drives the two funnel-shaped frames 813 to open until all the screws are threadedly connected to the interior of the lighting workpiece. Then, the electric push rod 811 drives the movable rod 803 to rise, and the clamping spring 815 drives the two funnel-shaped frames 813 to reset. The material conveying pipe 610 resets under the action of the thrust spring 614, so that the next screw enters the cavity rod 801, thereby improving the continuity and timeliness of the lighting workpiece processing.

[0033] The embodiments of the present invention are given for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A screw tightening machine for lighting equipment, characterized in that Including: Bottom plate (1); Workbench (2), placed above the bottom plate (1) through support legs; Placement plate (3), connected to the top of the workbench (2) for carrying lighting workpieces to be processed; Workpiece locking module (4), arranged on the outer side of the placement plate (3) for limiting and fixing the lighting workpiece; Gantry (5), movably arranged on the top of the workbench (2); Screw feeding module (6), arranged on the left side of the gantry (5) for orderly conveying screws into the tightening module (8) to provide material guarantee for the tightening operation; Vibration module (7), connected to the right side of the screw feeding module (6), vibrating the screws in the material frame (604) to make the screws evenly distributed between the two guide plates (603); Tightening module (8), arranged on the right side of the screw feeding module (6), cooperating with the screw feeding module (6) to tighten the screws to the designated installation area of the lighting workpiece; X module (9), arranged on the top of the workbench (2) to provide movement guidance for the gantry (5) in the X-axis direction; Y module (10), arranged on the left side of the gantry (5) for providing movement of relevant executing components in the Y-axis direction; Z module (11), connected to the left side of the Y module (10) to provide movement control for the screw feeding module (6) and relevant tightening components in the Z-axis direction.

2. The screw tightening machine for lighting equipment according to claim 1, characterized in that, The workpiece locking module (4) includes fixing plates one (401) welded to the left and right sides of the top of the placement plate (3). A double-headed lead screw (402) is rotatably connected between the two fixing plates one (401). A stepping motor one (403) is fixedly installed on the outer side of the right fixing plate one (401). The output end of the stepping motor one (403) extends between the two fixing plates one (401) and is fixedly connected to the double-headed lead screw (402). Movable blocks (404) are threadedly connected to the outer sides of both ends of the double-headed lead screw (402). Clamping plates (405) are welded to the front sides of the movable blocks (404). An expansion rod (406) is fixedly connected between the two clamping plates (405). A limiting unit (407) is arranged on the top of the placement plate (3).

3. The screw tightening machine for lighting equipment according to claim 2, characterized in that, The limiting unit (407) includes inner notch openings (4071) opened on the outer side of the placement plate (3). Lifting springs (4072) are arranged at the four corners of the bottom of the inner notch openings (4071). The bottom ends of the lifting springs (4072) are fixedly connected to the inner wall of the placement plate (3). The top ends of the lifting springs (4072) are fixedly connected to a double-sided arc plate (4074). Sliding grooves one (4073) are opened on the opposite sides of the inner notch openings (4071). The double-sided arc plate (4074) slides up and down in the inner notch openings (4071) through the sliding grooves one (4073).

4. A screw tightening machine for a lighting device according to claim 1, characterized in that, The screw feeding module (6) comprises a connecting rod (601) connected to the inside of the Z module (11); one end of the connecting rod (601) away from the Z module (11) is fixedly connected to an inclined plate (602); two groups of guide plates (603) are arranged on the top of the inclined plate (602); the spacing between the two groups of guide plates (603) is greater than the screw diameter of the screw and smaller than the head diameter of the screw; the tops of the two groups of guide plates (603) are connected to a material frame (604); a second fixing plate (607) is welded to the rear side of the inclined plate (602); a second stepping motor (608) is fixedly installed on the outer side of the second fixing plate (607); the output end of the second stepping motor (608) extends to the front side of the second fixing plate (607) and is fixedly connected to a rotating wheel (605); a plurality of push plates (606) are equidistantly arranged on the outer circumference of the rotating wheel (605).

5. The screw tightening machine for a lighting device according to claim 4, characterized in that, Two groups of bearing plates (609) are fixedly connected to the left side of the inclined panel (602), and a feed pipe (610) is rotatably connected between the two groups of bearing plates (609) via a pin shaft. A matching plate (611) is welded to the outer side of one group of bearing plates (609), and a pressure sensor (612) is arranged on the side of the matching plate (611) close to the feed pipe (610). A fixing plate three (613) is welded to the bottom of the inclined panel (602), and a thrust spring (614) is fixedly connected between the fixing plate three (613) and the outer wall of the feed pipe (610). Connecting plates (615) are welded to the front and rear sides of the inclined panel (602).

6. The screw tightening machine for lighting equipment according to claim 1, characterized in that, The vibration module (7) comprises a mounting plate (701) welded to the outside of the material frame (604); a driving motor (702) is fixedly mounted on the rear side of the mounting plate (701); an output end of the driving motor (702) extends to the front side of the mounting plate (701) and is fixedly connected to a rotating disk (703); a rotating rod (704) is rotatably connected to the front side of the mounting plate (701); a rectangular block (705) is fixedly connected to the outer surface of the rotating rod (704); a through groove (706) is provided on the outer side of the rectangular block (705); a matching rod (707) is fixedly connected to the front side of the rotating disk (703); and the matching rod (707) slides inside the through groove (706).

7. A screw tightening machine for lighting equipment according to claim 6, wherein, A fan-shaped tooth plate (708) is fixedly connected to the bottom of the rectangular block (705), and a T-shaped tooth plate (709) is meshedly connected to the outer side of the fan-shaped tooth plate (708). The T-shaped tooth plate (709) slides on the outer side of the mounting plate (701), and a resistance block (710) is fixedly connected to one end of the T-shaped tooth plate (709) close to the material frame (604).

8. A screw tightening machine for a lighting device according to claim 1, wherein, The tightening module (8) includes a cavity rod (801) fixedly connected to the connecting plate (615). An adaptation groove (802) matching the feed pipe (610) is formed on the outer side of the cavity rod (801). An active rod (803) is arranged inside the cavity rod (801). A bit (807) matching the screw is formed at the bottom of the active rod (803). Second sliding grooves (804) are equidistantly formed on the outer circumference of the upper end of the active rod (803). A transmission gear (805) is arranged on the outer side of the active rod (803). The transmission gear (805) slides on the outer side of the active rod (803) through the second sliding grooves (804). A rotating frame (806) is fixedly connected to the bottom of the transmission gear (805). A load-bearing plate is fixedly connected to the top of the cavity rod (801). A notch matching the active rod (803) is formed on the outer surface of the load-bearing plate.

9. The screw tightening machine for a lighting device according to claim 8, characterized in that, The transmission gear (805) rotates above the load-bearing plate through the rotating frame (806). A third stepper motor (808) is fixedly installed at the bottom of the load-bearing plate. The output end of the third stepper motor (808) extends above the load-bearing plate and is fixedly connected to a driving gear (809). The driving gear (809) is meshed with the transmission gear (805). An L-shaped mounting plate one (810) is welded to the top of the load-bearing plate. An electric push rod (811) is fixedly installed at the top of the L-shaped mounting plate one (810). The telescopic end of the electric push rod (811) extends to the lower side of the L-shaped mounting plate one (810) and is fixedly connected to a rotating block (812). The rotating block (812) rotates on the top of the active rod (803).

10. A screw tightening machine for lighting equipment according to claim 9, characterized in that, Two funnel-shaped frames (813) are arranged at the bottom of the cavity rod (801). A number of L-shaped mounting plates two (814) are arranged on the outer side of the bottom end of the cavity rod (801). The L-shaped mounting plates two (814) are fixedly connected to the two funnel-shaped frames (813) through clamping springs (815).

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