A screw tightening machine for lighting equipment

Abstract

This invention belongs to the technical field of screw tightening machine equipment, specifically a screw tightening machine for lighting equipment, including a base plate and a worktable placed on top of the base plate via support legs. This invention utilizes a workpiece locking module with components such as a double-ended lead screw, movable block, clamping plate, and limiting unit to quickly and accurately position and securely clamp the lighting workpiece, effectively preventing shaking during processing and ensuring the accuracy and stability of the screw tightening operation. A vibration module drives a turntable and other components via a drive motor, causing the contact block to impact the material frame at high frequency, ensuring the screws are evenly distributed between the guide plates, improving feeding efficiency, and ensuring the screws enter the feeding module in the correct posture, providing a guarantee for the tightening operation. The screw feeding module and tightening module work together; the feeding module accurately pushes the screws to the tightening module using rotating wheels and other components, and the tightening module achieves rapid tightening through movable rods and other components, reducing manual intervention, improving production efficiency, and realizing the automation and high efficiency of screw tightening operations.

Description

Technical Field

[0001] This invention relates to the field of screw tightening machine technology, and more particularly to a screw tightening machine for lighting equipment. Background Technology

[0002] Currently, the use of screws for assembly and connection is extremely widespread in many manufacturing industries such as electronics, machinery, hardware, toys, and furniture. However, most screw tightening assembly work is currently done manually, with each screw placed into its hole and then tightened one by one with a screwdriver. This process is inefficient, labor-intensive, and detrimental to the expansion of production scale and the improvement of efficiency for enterprises.

[0003] For example, Chinese patent CN118417864B discloses a printer screw tightening device. This invention relates to the field of screw tightening technology and includes a pickup frame. A working cylinder is fixedly connected to the inner wall of the pickup frame. A limiting groove is formed on the outer wall of the working cylinder. 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 overcome the elastic force of the working spring and slide along the limiting groove on the outer wall of the working cylinder. The sliding of the telescopic column drives the three sets of 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 pickup frame and fit against the side wall of the working screw. At the same time, the sliding of the telescopic column drives the rotating support column and the positioning support groove to abut against each other, realizing the positioning operation after the clamping plate and the working screw are fitted together. This avoids the working screw from shifting during the pickup process, and the working screw from being inaccurately positioned, which could lead to damage to the main body of the printer.

[0004] However, when using the above device, the material receiving plate must first be accurately moved to the top of the material receiving slot using the guide rail. Then, the screw is clamped and fixed using the clamping plate. After clamping, the clamped screw must be transferred to the working area again using the guide rail. Each step in the process takes a certain amount of time to complete the movement and positioning of the guide rail and the action of the clamping plate. This makes the entire workflow cumbersome and time-consuming, which makes it difficult to significantly improve work efficiency. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a screw tightening machine for lighting equipment. This solves the problem that in existing devices, the material tray must first be precisely moved to the top of the material tray using a guide rail, then the screw is clamped and fixed using a clamping plate. After clamping, the clamped screw must again be transferred to the work area using the guide rail. Each step in this process requires a certain amount of time to complete the movement and positioning of the guide rail and the action of the clamping plate, resulting in a cumbersome and time-consuming workflow, thus hindering significant improvements in work efficiency.

[0006] A screw tightening machine for lighting equipment includes a base plate; a worktable placed on top of the base plate via support legs; a placement plate connected to the top of the worktable for supporting lighting workpieces to be processed; a workpiece locking module arranged on the outside of the placement plate for limiting and fixing the lighting workpieces; a gantry frame movably mounted on the top of the worktable; a screw feeding module located on the left side of the gantry frame for orderly conveying screws into the tightening module, providing material support for the tightening operation; and a vibration module connected to the right side of the screw feeding module, which vibrates the screws in the material frame, causing the screws to vibrate between two sets of guides. The screws are evenly distributed between the plates; the tightening module, located to the right of the screw feeding module, tightens the screws to the designated installation area of ​​the lighting workpiece in cooperation with the screw feeding module; the X module, located at the top of the worktable, provides motion guidance for the gantry along the X-axis; the Y module, located to the left of the gantry, provides motion control for the relevant actuators along the Y-axis; the Z module, connected to the left of the Y module and connected to the screw feeding module, provides motion control for the screw feeding module and related tightening components along the Z-axis, thereby achieving precise positioning and tightening operations in three-dimensional space.

[0007] Preferably, the workpiece locking module includes a fixing plate welded to the left and right sides of the top of the placement plate, a double-ended lead screw rotatably connected between the two fixing plates, a stepper motor fixedly installed on the outer side of the right fixing plate, the output end of the stepper motor extending between the two fixing plates and fixedly connected to the double-ended lead screw, movable blocks threaded to the outer sides of both ends of the double-ended lead screw, clamping plates welded to the front of each movable block, a telescopic rod fixedly connected between the two clamping plates, and a limit unit provided on the top of the placement plate.

[0008] Preferably, the limiting unit includes an inner groove on the outside of the placement plate, and lifting springs are provided at the four bottom corners of the inner groove. The bottom end of the lifting spring is fixedly connected to the inner wall of the placement plate, and a bidirectional arc plate is fixedly connected to the top end of the lifting spring. A sliding groove is provided on each of the opposite sides of the inner groove, and the bidirectional arc plate slides up and down in the inner groove through the sliding groove.

[0009] Preferably, the screw feeding module includes a connecting rod connected to the inside of the Z module. An inclined plate is fixedly connected to the end of the connecting rod away from the Z module. Two sets of guide plates are provided on the top of the inclined plate. The distance between the two sets of guide plates is greater than the screw diameter and less than the screw head diameter. A material frame is connected to the top of the two sets of guide plates. A second fixing plate is welded to the rear side of the inclined plate. A second stepper motor is fixedly installed on the outer side of the second fixing plate. The output end of the second stepper motor extends to the front side of the second fixing plate and is fixedly connected to a rotating wheel. Several push plates are equidistantly arranged on the outer circumference of the rotating wheel.

[0010] Preferably, two sets of bearing plates are fixedly connected to the left side of the inclined panel, and a feed pipe is rotatably connected between the two sets of bearing plates via a pin. A mating plate is welded to the outer side of one set of bearing plates, and a pressure sensor is provided on the side of the mating plate near the feed pipe. A fixing plate three is welded to the bottom of the inclined panel, and a thrust spring is fixedly connected between the fixing plate three and the outer wall of the feed pipe. Connecting plates are welded to both 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 drive motor is fixedly mounted on the rear side of the mounting plate. The output end of the drive motor extends to the front side of the mounting plate and is fixedly connected to a turntable. A rotating rod is rotatably connected to the front side of the mounting plate. A rectangular block is fixedly connected to the outer surface of the rotating rod. A through groove is opened on the outer side of the rectangular block. A mating rod is fixedly connected to the front side of the turntable. The mating rod slides inside the through groove.

[0012] Preferably, a fan-shaped toothed plate is fixedly connected to the bottom of the rectangular block, and a T-shaped toothed plate is engaged with the outer side of the fan-shaped toothed plate. The T-shaped toothed plate slides on the outer side of the mounting plate, and an abutment block is fixedly connected to the end of the T-shaped toothed plate near the material frame.

[0013] Preferably, the tightening module includes a hollow rod fixedly connected to a connecting plate. The outer side of the hollow rod has an adapter groove that matches the material conveying pipe. A movable rod is provided inside the hollow rod. A screwdriver bit that matches the screw is provided at the bottom of the movable rod. A sliding groove is provided at equal intervals on the outer circumference of the upper end of the movable rod. A transmission gear is provided on the outer side of the movable rod. The transmission gear slides on the outer side of the movable rod through the sliding groove. 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 hollow rod. A groove that matches the movable rod is provided on the outer surface of the load-bearing plate.

[0014] Preferably, the transmission gear rotates above the load plate via a rotating frame. A stepper motor is fixedly installed at the bottom of the load plate. The output end of the stepper motor extends above the load plate and is fixedly connected to a drive gear. The drive gear meshes with the transmission gear. An L-shaped mounting plate is welded to the top of the load plate. An electric push rod is fixedly installed on the top of the L-shaped mounting plate. The telescopic end of the electric push rod extends to the lower side of the L-shaped mounting plate and is fixedly connected to a rotating block. The rotating block rotates at the top of the movable rod.

[0015] Preferably, the bottom of the cavity rod is provided with two sets of funnel-shaped frames, and the outer side of the bottom end of the cavity rod is provided with several L-shaped mounting plates. The L-shaped mounting plates are fixedly connected to the two sets of funnel-shaped frames by a locking spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention achieves precise positioning and stable clamping of lighting workpieces through the design of a workpiece locking module. By utilizing the synergistic effect of components such as double-ended lead screws, movable blocks, clamping plates, and limiting units, the lighting workpieces can be quickly and reliably fixed on the placement plate, effectively preventing workpiece shaking during processing, thereby ensuring the accuracy and stability of screw tightening operations and improving product quality.

[0018] 2. This invention solves the problem of screw arrangement in the material frame through the design of the vibration module. By driving the motor to drive the turntable, rectangular block, fan-shaped toothed plate and T-shaped toothed plate, the contact block can hit the material frame at high frequency, which promotes the screw to be evenly distributed between the guide plates. The design not only improves the efficiency of screw feeding, but also ensures that the screw enters the feeding module in the correct posture, which provides a strong guarantee for subsequent tightening operations.

[0019] 3. This invention achieves automation and high efficiency in screw tightening operations through the coordinated operation of the screw feeding module and the tightening module. The screw feeding module, through the ingenious design of components such as rotating wheels, push plates, and conveying pipes, can accurately push screws into the tightening module. The tightening module, through the cooperation of components such as movable rods, screwdriver bits, transmission gears, and electric push rods, achieves rapid screw tightening. This not only reduces manual intervention and improves production efficiency, but also further enhances product quality and production benefits. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the screw tightening machine for lighting equipment according to the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the workpiece locking module of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the screw feeding module of the present invention;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the screw feeding module of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the vibration module of the present invention;

[0025] Figure 6 This is a three-dimensional cross-sectional structural diagram of the tightening module of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the movable rod of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the tightening module of the present invention;

[0028] Figure 9 For the present invention Figure 8 A magnified three-dimensional structural diagram of part A in the middle.

[0029] In the picture:

[0030] 1. Base plate; 2. Workbench; 3. Placement plate;

[0031] 4. Workpiece locking module; 401. Fixing plate one; 402. Double-ended lead screw; 403. Stepper motor one; 404. Movable block; 405. Clamping plate; 406. Telescopic rod; 407. Limiting unit; 4071. Inner groove; 4072. Lifting spring; 4073. Slide groove one; 4074. Two-way arc plate;

[0032] 5. Gantry frame;

[0033] 6. Screw feeding module; 601. Connecting rod; 602. Slanted panel; 603. Guide plate; 604. Material frame; 605. Rotating wheel; 606. Push plate; 607. Fixing plate two; 608. Stepper motor two; 609. Bearing plate; 610. Feeding pipe; 611. Mating plate; 612. Pressure sensor; 613. Fixing plate three; 614. Thrust spring; 615. Connecting plate;

[0034] 7. Vibration module; 701. Mounting plate; 702. Drive motor; 703. Turntable; 704. Rotating rod; 705. Rectangular block; 706. Through slot; 707. Mating rod; 708. Sector toothed plate; 709. T-shaped toothed plate; 710. Abutment block;

[0035] 8. Tightening module; 801. Hollow rod; 802. Adaptor slot; 803. Movable rod; 804. Slide groove two; 805. Transmission gear; 806. Rotating frame; 807. Screwdriver bit; 808. Stepper motor three; 809. Drive gear; 810. L-shaped mounting plate one; 811. Electric push rod; 812. Rotating block; 813. Funnel-shaped frame; 814. L-shaped mounting plate two; 815. Locking spring;

[0036] 9. X module; 10. Y module; 11. Z module. Detailed Implementation

[0037] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0038] Example 1:

[0039] As attached Figure 1 To be continued Figure 9As shown, this invention provides a screw tightening machine for lighting equipment, including a base plate 1; a worktable 2, placed on top of the base plate 1 via support legs; a placement plate 3, connected to the top of the worktable 2, for supporting the lighting workpiece to be processed; a workpiece locking module 4, arranged on the outside of the placement plate 3, for limiting and fixing the lighting workpiece; a gantry frame 5, movably mounted on the top of the worktable 2; a screw feeding module 6, located on the left side of the gantry frame 5, for orderly conveying screws into the tightening module 8, providing material support for the tightening operation; and a vibration module 7, connected to the right side of the screw feeding module 6, for vibrating the screws in the material frame 604 to cause the screws to tighten. The screw feeding module 8 is evenly distributed between the two sets of guide plates 603. It is located on the right side of the screw feeding module 6 and tightens the screws to the designated installation area of ​​the lighting workpiece by cooperating with the screw feeding module 6. The X module 9 is located on the top of the worktable 2 and provides motion guidance for the gantry 5 in the X-axis direction. The Y module 10 is located on the left side of the gantry 5 and is used to provide motion control for the relevant actuators in the Y-axis direction. The Z module 11 is connected to the left side of the Y module 10 and is connected to the screw feeding module 6. It provides motion control for the screw feeding module 6 and the relevant tightening components in the Z-axis direction, thereby realizing precise positioning and tightening operations in three-dimensional space.

[0040] As can be seen from the above, when using this device, the lighting workpiece is first placed on the workbench 2 and clamped and fixed by the workpiece locking module 4 to prevent the lighting workpiece from shaking during processing. Then, several screws are placed inside the material frame 604. The vibration module 7 effectively arranges the screws in the material frame 604 between the two sets of guide plates 603. Then, the screw feeding module 6 pushes the screws into the tightening module 8 in an orderly manner. At the same time, the X module 9, Y module 10 and Z module 11 make the screws in the tightening module 8 abut against the installation position of the lighting workpiece. The tightening module 8 fixes the screws inside the lighting workpiece, reducing the need for a robot to position and clamp the screws and optimizing the production steps.

[0041] Example 2:

[0042] As attached Figure 2As shown, this embodiment is basically the same as the previous embodiment, except that the workpiece locking module 4 includes a fixing plate 401 welded to the top left and right sides of the placement plate 3. A double-ended lead screw 402 is rotatably connected between the two fixing plates 401. A stepper motor 403 is fixedly installed on the outer side of the right fixing plate 401. The output end of the stepper motor 403 extends between the two fixing plates 401 and is fixedly connected to the double-ended lead screw 402. Movable blocks 404 are threaded to the outer sides of both ends of the double-ended lead screw 402. Clamping plates 405 are welded to the front side of each movable block 404. A telescopic rod 406 is fixedly connected between the clamping plates 405. A limiting unit 407 is provided on the top of the placement plate 3. The limiting unit 407 includes an inner groove 4071 opened on the outside of the placement plate 3. A lifting spring 4072 is provided at each of the four bottom corners of the inner groove 4071. The bottom end of the lifting spring 4072 is fixedly connected to the inner wall of the placement plate 3. A bidirectional arc plate 4074 is fixedly connected to the top end of the lifting spring 4072. A sliding groove 4073 is opened on each of the opposite sides of the inner groove 4071. The bidirectional arc plate 4074 slides up and down in the inner groove 4071 through the sliding groove 4073.

[0043] As can be seen from the above, the worker places the lighting workpiece on top of the placement plate 3. The lifting spring 4072 is compressed, causing the bidirectional arc plate 4074 to slide down along the slide groove 4073. Then, the worker pushes the lighting workpiece towards the telescopic rod 406 until the bidirectional arc plate 4074 is reset due to the thrust of the lifting spring 4072, completing the initial positioning of the lighting workpiece. Then, the stepper motor 403 is turned on, which drives the double-headed lead screw 402 to rotate. Then, guided by the telescopic rod 406, the two movable blocks 404 on both sides move closer to each other until the two clamping plates 405 clamp and fix the lighting workpiece.

[0044] Example 3:

[0045] As attached 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 drive motor 702 is fixedly mounted on the rear side of the mounting plate 701. The output end of the drive 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 opened on the outer side of the rectangular block 705. A mating rod 707 is fixedly connected to the front side of the turntable 703. The mating rod 707 slides inside the through groove 706. A fan-shaped toothed plate 708 is fixedly connected to the bottom of the rectangular block 705. A T-shaped toothed plate 709 is meshed with the outer side of the fan-shaped toothed plate 708. The T-shaped toothed plate 709 slides on the outside of the mounting plate 701. An abutment block 710 is fixedly connected to one end of the T-shaped toothed plate 709 near the material frame 604.

[0046] As can be seen from the above, after placing several screws inside the material frame 604, the drive motor 702 is turned on. The drive motor 702 drives the turntable 703 to rotate. Through the cooperating rod 707, the rectangular block 705 swings around the rotating rod 704, which in turn drives the fan-shaped toothed plate 708 to drive the T-shaped toothed plate 709 to slide back and forth along the outside of the mounting plate 701. This causes the contact block 710 to strike the material frame 604 at a high frequency. As a result, due to the "top-heavy" nature of the screws, the screws inside the material frame 604 are arranged in an orderly manner between the two sets of guide plates 603. Furthermore, due to the high-frequency impact of the contact block 710 on the inclined surface of the material frame 604 and the inclined plate 602, the screws slide down in an orderly manner along the inclined direction of the inclined plate 602.

[0047] Example 4:

[0048] As attached Figure 3 To be continued Figure 4As shown, this embodiment is basically the same as the previous embodiment, except that the screw feeding module 6 includes a connecting rod 601 connected to the inside of the Z module 11. A sloping panel 602 is fixedly connected to the end of the connecting rod 601 away from the Z module 11. Two sets of guide plates 603 are provided on the top of the sloping panel 602. The distance between the two sets of guide plates 603 is greater than the screw shank diameter and less than the screw head diameter. A material frame 604 is connected to the top of the two sets of guide plates 603. A second fixing plate 607 is welded to the rear side of the sloping panel 602. A second stepper motor 608 is fixedly installed on the outer side of the second fixing plate 607. The output end of the second stepper motor 608 extends to the second fixing plate 607. On the front side of the 07, a rotating wheel 605 is fixedly connected. Several push plates 606 are equidistantly arranged on the outer circumference of the rotating wheel 605. Two sets of bearing plates 609 are fixedly connected to the left side of the inclined panel 602. A feed pipe 610 is rotatably connected between the two sets of bearing plates 609 through a pin shaft. A mating plate 611 is welded to the outer side of one set of bearing plates 609. A pressure sensor 612 is arranged on the side of the mating plate 611 near the feed pipe 610. A fixing plate 613 is welded to the bottom of the inclined panel 602. A thrust spring 614 is fixedly connected between the fixing plate 613 and the outer wall of the feed pipe 610. Connecting plates 615 are welded to both the front and rear sides of the inclined panel 602.

[0049] As can be seen from the above, when the screw slides down along the inclined direction of the inclined plate 602, it stops sliding down due to the obstruction of several push plates 606 on the outside of the rotating wheel 605 until the feed tube 610 compresses the thrust spring 614. The feed tube 610 rotates and contacts the pressure sensor 612 in the two sets of bearing plates 609. Then the pressure sensor 612 turns on the stepper motor 608. The stepper motor 608 drives the rotating wheel 605 to rotate, pushing one of the screws to slide to the left through the push plate 606 until the screw passes through the guide plate 603 and falls due to its own weight. Because the feed tube 610 is very close to the screw when it rotates and contacts the pressure sensor 612 in the two sets of bearing plates 609, the screw still falls into the interior of the feed tube 610 with its head up and feet down. Since the feed tube 610 always maintains an inclined state, it then enters the interior of the cavity rod 801 through the feed tube 610.

[0050] Example 5:

[0051] As attached Figure 6 To be continued Figure 9As shown, this embodiment is basically the same as the previous embodiment, except that the tightening module 8 includes a hollow rod 801 fixedly connected to the connecting plate 615. The outer side of the hollow rod 801 has an adapter groove 802 that matches the feed pipe 610. A movable rod 803 is provided inside the hollow rod 801. A screwdriver bit 807 that matches the screw is provided at the bottom of the movable rod 803. A second sliding groove 804 is equidistantly provided on the outer circumference of the upper end of the movable rod 803. A transmission gear 805 is provided on the outer side of the movable rod 803. The transmission gear 805 slides on the outer side of the movable rod 803 through the second sliding groove 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 hollow rod 801. The outer surface of the load-bearing plate has a groove that matches the movable rod 803. The transmission gear 805 slides through the rotating frame 806. 06 rotates above the load-bearing plate. A stepper motor 808 is fixedly installed at the bottom of the load-bearing plate. The output end of the stepper motor 808 extends to the top of the load-bearing plate and is fixedly connected to a drive gear 809. The drive gear 809 meshes with a transmission gear 805. An L-shaped mounting plate 810 is welded to the top of the load-bearing plate. An electric push rod 811 is fixedly installed on the top of the L-shaped mounting plate 810. The telescopic end of the electric push rod 811 extends to the lower side of the L-shaped mounting plate 810 and is fixedly connected to a rotating block 812. The rotating block 812 rotates on the top of the movable rod 803. Two sets of funnel-shaped frames 813 are provided at the bottom of the cavity rod 801. Several L-shaped mounting plates 814 are provided on the outer side of the bottom end of the cavity rod 801. The L-shaped mounting plates 814 are fixedly connected to the two sets of funnel-shaped frames 813 by a locking spring 815.

[0052] As can be seen from the above, after the screw enters the cavity rod 801, the lead screw at the bottom of the screw will pass through the middle of the two sets of funnel-shaped frames 813 and protrude, and through the X module 9, Y module 10 and Z module 11, it will abut against the mounting part of the lighting workpiece. Then, the electric push rod 811 is activated, and the output end of the electric push rod 811 drives the movable rod 803 to descend, and then abut against the feed tube 610, until the bit 807 below the movable rod 803 abuts against the screw. At this time, under the action of the thrust spring 614 and the two sets of bearing plates 609, the feed tube 610 rotates into the adapter 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 feed tube 610 and also abut against the inner wall of the cavity rod 801. When rod 811 presses down the screw via movable rod 803, stepper motor 808 is activated. Stepper motor 808 drives drive gear 809 to rotate, which in turn drives transmission gear 805 to rotate. The rotation of transmission gear 805 drives movable rod 803 to rotate synchronously. Movable rod 803 drives screw to rotate. At this time, the screw head compresses locking spring 815, causing two sets of funnel-shaped frames 813 to open until all screws are threaded into the lighting workpiece. Then, electric push rod 811 drives movable rod 803 to rise, locking spring 815 drives two sets of funnel-shaped frames 813 to reset, and feed tube 610 is reset under the action of thrust spring 614, so that the next screw enters the cavity rod 801, thereby improving the continuity and timeliness of lighting workpiece processing.

[0053] Working principle: When using this device, first place the lighting workpiece above the worktable 2. The lifting spring 4072 is compressed, which drives the bidirectional arc plate 4074 to slide down along the slide groove 4073. Then, the operator pushes the lighting workpiece towards the telescopic rod 406 until the bidirectional arc plate 4074 is reset due to the thrust of the lifting spring 4072, completing the initial positioning of the lighting workpiece. Then, the stepper motor 403 is turned on, which drives the double-headed lead screw 402 to rotate. Then, guided by the telescopic rod 406, the two movable blocks 404 on both sides move closer to each other until the two clamping plates 405 clamp and fix the lighting workpiece.

[0054] After placing several screws inside the material frame 604, the drive motor 702 is turned on. The drive motor 702 drives the turntable 703 to rotate. Through the cooperating rod 707, the rectangular block 705 swings around the rotating rod 704 in a circular motion. This causes the fan-shaped toothed plate 708 to drive the T-shaped toothed plate 709 to slide back and forth along the outside of the mounting plate 701. This causes the contact block 710 to strike the material frame 604 at a high frequency. As a result, the screws are "top-heavy" and the screws are arranged in an orderly manner between the two sets of guide plates 603. Furthermore, due to the high-frequency impact of the contact block 710 on the inclined surface of the material frame 604 and the inclined plate 602, the screws slide down the inclined plate 602 in an orderly manner.

[0055] As the screw slides down the inclined plate 602, it stops sliding due to the obstruction of several push plates 606 on the outside of the rotating wheel 605 until the feed tube 610 compresses the thrust spring 614. The feed tube 610 rotates and contacts the pressure sensor 612 within the two sets of bearing plates 609. Then, the pressure sensor 612 activates the second stepper motor 608, which drives the rotating wheel 605 to rotate. Through the push plate 606, it pushes one of the screws to slide to the left until the screw passes through the guide plate 603 and falls due to its own weight. Because the feed tube 610 is very close to the screw when it rotates and contacts the pressure sensor 612 within the two sets of bearing plates 609, the screw still falls into the feed tube 610 with its head down. Since the feed tube 610 always remains in an inclined state, it then enters the cavity rod 801 through the feed tube 610.

[0056] After the screw enters the cavity rod 801, the lead screw at the bottom of the screw will pass through the middle of the two sets of funnel-shaped frames 813 and protrude, passing through the X module 9, Y module 10 and Z module 11 to abut against the mounting part of the lighting workpiece. Then, the electric push rod 811 is activated, and the output end of the electric push rod 811 drives the movable rod 803 to descend, thus abutting against the feed tube 610, until the bit 807 below the movable rod 803 abuts against the screw. At this time, the feed tube 610 is rotated into the adapter groove 802 and abuts against the inner wall of the cavity rod 801 due to the action of the thrust spring 614 and the two sets of bearing plates 609. At this time, the pressure sensor 612 is pressed, causing the next screw to fall into the feed tube 610 and also abut against the inner wall of the cavity rod 801. The electric push rod 811... 1. When the screw is pressed down by the movable rod 803, the stepper motor 808 is turned on. The stepper motor 808 drives the drive gear 809 to rotate, which in turn drives the transmission gear 805 to rotate. The rotation of the transmission gear 805 drives the movable rod 803 to rotate synchronously. The movable rod 803 drives the screw to rotate. At this time, the screw head compresses the locking spring 815, which drives the two sets of funnel-shaped frames 813 to open until all screws are threaded into the interior of the lighting workpiece. Then, the electric push rod 811 drives the movable rod 803 to rise. The locking spring 815 drives the two sets of funnel-shaped frames 813 to reset. The feed tube 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.

[0057] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled 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, include: Base plate (1); The workbench (2) is placed above the base plate (1) by means of support legs; The placement plate (3) is connected to the top of the workbench (2) and is used to support the lighting workpiece to be processed; The workpiece locking module (4) is arranged on the outside of the placement plate (3) and is used to limit and fix the illuminated workpiece; The gantry (5) is movably mounted on top of the workbench (2); The screw feeding module (6) is located on the left side of the gantry (5) and is used to orderly feed screws into the tightening module (8) to provide material support for the tightening operation. The vibration module (7) is connected to the right side of the screw feeding module (6). By vibrating the screws in the material frame (604), the screws are evenly distributed between the two sets of guide plates (603). The tightening module (8) is located on the right side of the screw feeding module (6). By cooperating with the screw feeding module (6), the screw is tightened to the designated installation area of ​​the lighting workpiece. The tightening module (8) includes a cavity rod (801) fixedly connected to the connecting plate (615). The outer side of the cavity rod (801) is provided with an adapter groove (802) that matches the feed pipe (610). The cavity rod (801) is provided with a movable rod (803) inside. The bottom of the movable rod (803) is provided with a screw bit (807) that matches the screw. The X module (9) is set on top of the workbench (2) to provide motion guidance for the gantry (5) along the X-axis. Y module (10), located on the left side of gantry (5), is used to provide the relevant actuators to move along the Y-axis; Z module (11), connected to the left side of Y module (10), provides motion control along the Z-axis for screw feeding module (6) and related tightening components; The screw feeding module (6) includes a connecting rod (601) connected to the inside of the Z module (11). The end of the connecting rod (601) away from the Z module (11) is fixedly connected to a sloping plate (602). The top of the sloping plate (602) is provided with two sets of guide plates (603). The distance between the two sets of guide plates (603) is greater than the screw diameter and less than the screw head diameter. The top of the two sets of guide plates (603) is connected to a material frame (604). A fixing plate (607) is welded to the rear side of the sloping plate (602). A stepper motor (608) is fixedly installed on the outer side of the fixing plate (607). The output end of the stepper motor (608) extends to the front side of the fixing plate (607) and is fixedly connected to a rotating wheel (605). Several push plates (606) are equidistantly arranged on the outer circumference of the rotating wheel (605). Two sets of bearing plates (609) are fixedly connected to the left side of the inclined panel (602). A feed pipe (610) is rotatably connected between the two sets of bearing plates (609) via a pin. A mating plate (611) is welded to the outside of one set of bearing plates (609). A pressure sensor (612) is provided on the side of the mating plate (611) near the feed pipe (610). A fixing plate three (613) is welded to the bottom of the inclined panel (602). 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 both the front and rear sides of the inclined panel (602).

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

3. A screw tightening machine for lighting equipment according to claim 2, characterized in that, The limiting unit (407) includes an inner groove (4071) opened on the outside of the placement plate (3). Each of the four bottom corners of the inner groove (4071) is provided with a lifting spring (4072). The bottom end of the lifting spring (4072) is fixedly connected to the inner wall of the placement plate (3). The top end of the lifting spring (4072) is fixedly connected to a bidirectional arc plate (4074). Each of the opposite sides of the inner groove (4071) is provided with a sliding groove (4073). The bidirectional arc plate (4074) slides up and down in the inner groove (4071) through the sliding groove (4073).

4. A screw tightening machine for lighting equipment according to claim 1, characterized in that, The vibration module (7) includes a mounting plate (701) welded to the outside of the material frame (604). A drive motor (702) is fixedly mounted on the rear side of the mounting plate (701). The output end of the drive 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 opened on the outer side of the rectangular block (705). A mating rod (707) is fixedly connected to the front side of the turntable (703). The mating rod (707) slides inside the through groove (706).

5. A screw tightening machine for lighting equipment according to claim 4, characterized in that, The bottom of the rectangular block (705) is fixedly connected to a fan-shaped toothed plate (708), and a T-shaped toothed plate (709) is engaged with the outside of the fan-shaped toothed plate (708). The T-shaped toothed plate (709) slides on the outside of the mounting plate (701), and an abutment block (710) is fixedly connected to one end of the T-shaped toothed plate (709) near the material frame (604).

6. A screw tightening machine for lighting equipment according to claim 1, characterized in that, The upper outer circumference of the movable rod (803) is provided with a sliding groove (804) at equal intervals. A transmission gear (805) is provided on the outer side of the movable rod (803). The transmission gear (805) slides on the outer side of the movable rod (803) through the sliding groove (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). The outer surface of the load-bearing plate is provided with a slot that matches the movable rod (803).

7. A screw tightening machine for lighting equipment according to claim 6, characterized in that, The transmission gear (805) rotates above the load plate via the rotating frame (806). A stepper motor (808) is fixedly installed at the bottom of the load plate. The output end of the stepper motor (808) extends to the top of the load plate and is fixedly connected to a drive gear (809). The drive gear (809) meshes with the transmission gear (805). An L-shaped mounting plate (810) is welded to the top of the load plate. An electric push rod (811) is fixedly installed on the top of the L-shaped mounting plate (810). The telescopic end of the electric push rod (811) extends to the lower side of the L-shaped mounting plate (810) and is fixedly connected to a rotating block (812). The rotating block (812) rotates on the top of the movable rod (803).

8. A screw tightening machine for lighting equipment according to claim 7, characterized in that, The bottom of the cavity rod (801) is provided with two sets of funnel-shaped frames (813), and the outer side of the bottom end of the cavity rod (801) is provided with several L-shaped mounting plates (814). The L-shaped mounting plates (814) are fixedly connected to the two sets of funnel-shaped frames (813) by a locking spring (815).

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