An automated and efficient screw assembly equipment

Abstract

This invention discloses an automated and efficient screw assembly device. Key technical features include a workbench and an electrical control box. The workbench is equipped with a clamp and a screw mechanism. The screw mechanism includes a hollow mounting tube with a discharge port at its lower end. A screwdriver head is slidably mounted inside the mounting tube and connected to a power mechanism. It also includes a feeding mechanism with an inlet located on the side wall of the mounting tube between the screwdriver head and the discharge port. A vibratory feeder for placing screws is connected via a feeding tube. A baffle is rotatably mounted at the inlet, connected to a drive motor mounted on the mounting tube and connected to the baffle. Compared to existing technologies, this application integrates the screw mechanism and the feeding mechanism onto the workbench, thereby achieving simultaneous screw feeding and screw tightening operations. This improves efficiency and prevents screws pre-installed on the cabinet from falling off due to vibration during transport, thus avoiding disruption to normal product assembly.

Description

Technical Field

[0001] The invention relates to the technical field of screw assembly equipment, and in particular to automated and efficient screw assembly equipment. Background Art

[0002] In the assembly process of low-voltage electrical products, especially switch cabinets and distribution cabinets, the panels of the cabinet are usually connected by screws. If the screws are tightened manually, the assembly efficiency will be greatly reduced. Therefore, there is a screw assembly device on the market that can automatically tighten the screws of the product. Through multiple sets of power elements, multiple sensors and systems, the electric screwdriver head can be driven to move between multiple installation positions of the cabinet, and then the screwdriver head can be rotated to tighten the screws; and in order to further improve efficiency, some equipment will also have a feeding mechanism that can automatically tighten the screws of the product.

[0003] However, in the existing equipment, the feeding mechanism and the electric screwdriver head are independent. Generally, the cabinet body will first pass through the feeding mechanism to place the screws in the screw holes, and then be sent to the electric screwdriver head for tightening. The above operation will cause the screws to detach from the cabinet body during the conveying process, and the efficiency is also low. Summary of the invention

[0004] The present invention provides an automated and efficient screw assembly device, which can automatically install and tighten screws at the same workstation, thereby improving assembly efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automated and efficient screw assembly equipment, including a workbench and an electric control box, the workbench is provided with a fixture for placing the product to be assembled and a screw mechanism located above the fixture, the screw mechanism is connected to a driving mechanism; the screw mechanism includes a mounting tube connected to the workbench through the driving mechanism, the mounting tube is hollow, and a discharge port is provided at its lower end; a screwdriver head is slidably provided in the mounting tube, the screwdriver head is connected to a power mechanism, and the power mechanism is connected to the driving mechanism for controlling the lifting and rotation of the screwdriver head; it also includes a feeding mechanism, the feeding mechanism includes a feeding port provided on the side wall of the mounting tube, the feeding port is located between the screwdriver head and the discharge port, and is connected to a vibrating disk for placing screws through a feeding pipe, and the feeding pipe is obliquely arranged to the feeding port; the feeding port is also rotatably provided with a baffle, and the baffle is connected to a driving motor connected to the baffle provided on the mounting tube.

[0006] The present invention is further configured such that the discharge port of the mounting tube is arranged on a supporting mechanism for supporting the screw, and when the screwdriver head drives the screw to move downward and rotate under the action of the power mechanism, the supporting mechanism releases the support for the screw.

[0007] The present invention is further configured as follows: the power mechanism includes a rotating motor fixedly arranged on the top of the mounting tube, the output end of the rotating motor extends into the mounting tube and is connected to a rotating shaft, the rotating shaft is slidably connected to a coupling sleeve at one end facing the screwdriver head, the bottom of the coupling sleeve is plug-fitted with the screwdriver head, a downward pressure spring is abutted between the coupling sleeve and the rotating shaft, and the downward pressure spring is used to drive the coupling sleeve to allow the screwdriver head to abut against the screw; an electromagnet connected to the electric control box is also provided on the rotating shaft, a locking block engaged with the electromagnet is provided on the coupling sleeve, a Hall sensor electrically connected to the electromagnet is provided at the discharge port, and the Hall sensor is electrically connected to the driving motor.

[0008] The present invention is further configured such that the support mechanism includes a mounting seat arranged on the mounting tube and located at the discharge port, the mounting seat is provided with a through hole concentric with the discharge port, a mounting ring groove is provided on the circumferential side of the through hole, a plurality of arc-shaped support blocks are slidably arranged in the mounting ring groove, a plurality of the support blocks are distributed on the circumferential side of the through hole, a return spring is abutted between the support block and the mounting ring groove, and the return spring drives the support block to move toward the center of the discharge port.

[0009] The present invention is further configured such that a plurality of threaded holes are provided on the circumferential side of the mounting seat, a bolt having one end located in the mounting ring groove is threadedly connected to the threaded hole, an abutment block is provided at one end of the bolt located in the mounting ring groove, and the return spring is connected between the support block and the abutment block.

[0010] The present invention is further configured such that the coupling sleeve and the screwdriver head are plugged in and matched with each other through a connecting structure, wherein the connecting structure includes a socket arranged at the bottom of the coupling sleeve and a plug arranged at one end of the screwdriver head facing the coupling sleeve, the inner wall of the socket is provided with a vertically arranged snap-in groove, the outer wall of the plug is provided with a snap-in block that snaps in and matches with the snap-in groove, and a magnetic suction block is also provided on the end surface of the socket that contacts the plug.

[0011] The present invention is further configured such that a chamfer is provided on one side of the support block relative to the through hole, and the chamfers of several support blocks can form a guide groove with a conical cross section.

[0012] The present invention is further configured such that a threaded cover is threadedly connected to the lower end of the installation cylinder, and the discharge port is arranged on the threaded cover.

[0013] The present invention is further configured such that the inner wall of the insertion hole is provided with a guide groove connected to the clamping groove, and the width of the guide groove gradually decreases from the insertion hole to the clamping groove.

[0014] The present invention is further configured such that the inner wall of the mounting tube and the side wall of the mounting tube are provided with vertically arranged disassembly grooves, and the peripheral side of the screwdriver head is provided with friction strips.

[0015] In summary, the beneficial effects of the present invention are:

[0016] Compared with the prior art, the present application integrates the screw mechanism and the feeding mechanism onto the workbench, thereby realizing the simultaneous operation of feeding and screwing, which improves efficiency and prevents the screws pre-installed on the cabinet from falling off due to vibration during transportation, affecting the normal assembly of the product.

[0017] On the workbench, the vibration plate is connected to the feed port on the mounting tube through the feed pipe, so that the screws can be sent to the discharge port of the mounting tube through the vibration plate and the feed pipe for preparation. At the same time, a screwdriver head is arranged above the feed port in the mounting tube. When the screw passes through the feed port and reaches the discharge port for preparation, the screwdriver head will abut against the screw under the action of a reset spring. Therefore, when the screwdriver head rotates, the screw can be driven to rotate and tightened on the cabinet. Thus, the simultaneous installation of the screws and the tightening of the screws are realized, and the assembly efficiency and assembly stability are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of this embodiment.

[0019] Figure 2 This is the structural diagram of the workbench.

[0020] Figure 3 It is the structural diagram of the driving mechanism.

[0021] Figure 4 It is a three-dimensional diagram of the screw mechanism.

[0022] Figure 5 It is a cross-sectional structural diagram of the screw mechanism.

[0023] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0024] Figure 7 It is a three-dimensional diagram of the coupling sleeve.

[0025] Figure 8 It is the control module connection block diagram.

[0026] Figure numerals: 1, workbench; 2, electric control box; 3, fixture; 31, turntable; 32, positioning block; 4, screw mechanism; 41, mounting tube; 42, power mechanism; 421, rotating motor; 422, rotating shaft; 423, coupling sleeve; 424, locking block; 425, electromagnet; 43, discharge port; 44, Hall sensor; 45, pressing spring; 5, driving mechanism; 51, vertical slide rail; 52, mounting plate; 53, lifting cylinder; 54, mounting frame; 55, Gear; 56, rack; 6, feeding mechanism; 61, feeding port; 62, feeding pipe; 63, baffle; 64, driving motor; 7, supporting mechanism; 71, mounting seat; 72, mounting ring groove; 73, supporting block; 74, reset spring; 75, guide groove; 76, bolt; 77, abutment block; 8, threaded cover; 9, jack; 10, plug; 11, snap-in groove; 12, guide groove; 13, disassembly groove; 14, friction strip; 15, centering block; 16, screwdriver head. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.

[0028] like Figure 1-8 As shown, this embodiment discloses an automated and efficient screw assembly device, including a workbench 1 and an electric control box 2, the electric control box 2 includes a power supply and a PLC control module, the PLC control module is connected to various mechanisms on the workbench 1, and the PLC control module is connected to a terminal device, so that the staff can control the operation and debugging of the device through the terminal device.

[0029] like Figure 1-2 As shown, a fixture 3 for placing the product to be assembled and a screw mechanism 4 located above the fixture 3 are provided on the workbench 1, and the screw mechanism 4 is connected to a driving mechanism 5; the fixture 3 is a turntable 31 rotatably arranged on the surface of the workbench 1, and a positioning block 32 is arranged on the turntable 31, and the positioning block 32 is detachably arranged on the turntable 31, and different positioning blocks 32 can be replaced according to the size of unused cabinets. The positioning block 32 allows the cabinet to be stuck on the turntable 31, and at the same time, a servo motor is connected to the bottom of the turntable 31, and the servo motor is connected to the PLC control module. According to the different positions of the screw holes on the cabinet, the cabinet can be driven to rotate so that the screw holes can correspond to the screw mechanism 4, thereby realizing the installation and tightening of the screws.

[0030] like Figure 2-3As shown, the driving mechanism 5 includes a vertical slide rail 51 fixed on the workbench 1, a mounting plate 52 is slidably provided on the vertical slide rail 51 through a slider, and the mounting plate 52 is connected to a lifting cylinder 53 connected to a PLC control module; a transverse slide rail is also provided on the mounting plate 52, a mounting frame 54 is slidably provided on the transverse slide rail through a slider, a screw mechanism 4 is connected to the mounting frame 54, a servo motor connected to the PLC control module is also provided on the mounting plate 52, the servo motor is connected to a gear 55, and a rack 56 meshing with the gear 55 is provided on the slider.

[0031] The staff sets the PLC control module through the terminal device, and then drives the screw mechanism 4 to realize up and down lifting activities on the workbench 1 by controlling the mounting plate 52 through the lifting cylinder 53, and then drives the gear 55 to rotate by controlling the servo motor, and then drives the screw mechanism 4 to realize horizontal sliding in the left and right directions on the workbench 1 through the rack 56, and finally realizes the control of the position of the screw mechanism 4 so that the position of the screw mechanism 4 can be adjusted according to the different screw installation positions on the cabinet; cooperates with the turntable 31 that can drive the cabinet to rotate, thereby realizing the screw installation and tightening of screw holes at different positions on the cabinet, without excessive adjustment of the cabinet, making the installation of screws more convenient and quick, and realizing automation.

[0032] like Figure 3-6 As shown, the screw mechanism 4 includes a mounting tube 41 connected to the mounting frame 54, the mounting tube 41 is hollow, and a power mechanism 42 is arranged at the upper end thereof, the power mechanism 42 includes a rotating motor 421, the output end of the rotating motor 421 extends into the mounting tube 41 and is connected to a rotating shaft 422, a coupling sleeve 423 is connected to the lower end of the rotating shaft 422, the coupling sleeve 423 and the rotating shaft 422 are slidably matched through a slide rail and a slide groove, and a coupling sleeve 423 is arranged at the upper end thereof. A locking block 424 is provided, and an electromagnet 425 which can be magnetically attracted to the locking block 424 is provided on the rotating shaft 422, and the electromagnet 425 is connected to the PLC control module. At the same time, a Hall sensor 44 which is electrically connected to the electromagnet 425 through the PLC control module is also provided at the discharge port 43 of the mounting tube 41; and a downward pressure spring 45 is also provided between the coupling sleeve 423 and the rotating shaft 422, and the downward pressure spring 45 can drive the screwdriver head 16 to move toward the discharge port 43.

[0033] A connecting structure is also provided between the bottom of the coupling sleeve 423 and the screwdriver head 16 to achieve position locking between the coupling sleeve 423 and the screwdriver head 16. When the mounting tube 41 moves to the mounting position, the screw located at the discharge port 43 of the mounting tube 41 will first trigger the Hall sensor 44. The Hall sensor 44 will disconnect the power supply of the electromagnet 425 through the PLC control module. Then, the electromagnet 425 will release the lock of the locking block 424 on the coupling sleeve 423, so that the coupling sleeve 423 can move toward the screw position and abut against the screw under the action of the downward pressure spring 45. Then, the rotating motor will drive the rotating shaft 422 to rotate. The torque of the rotating shaft 422 will be transmitted to the screwdriver head 16 through the coupling sleeve 423, causing the screwdriver head 16 to rotate to tighten the screw.

[0034] like Figure 5 As shown, the workbench 1 also includes a feeding mechanism 6, which includes a feeding port 61 arranged on the side wall of the mounting tube 41, the feeding port 61 is located between the screwdriver head 16 and the discharge port 43, and is connected to a vibration plate for placing screws through a feeding pipe 62. The vibration plate is a prior art and is not shown in the figure. When the screws are poured into the vibration plate, the vibration plate will drive the screws through the feeding pipe 62 through vibration and be sent from the feeding port 61 to the discharge port 43 of the mounting tube 41, wherein the feeding pipe 62 is It is made of flexible material, so as the driving mechanism 5 drives the position of the mounting tube 41 to change, the screws of the vibration plate can be sent to the mounting tube 41 through the feeding tube 62; a baffle 63 is also rotatably arranged at the feeding port 61, and a driving motor 64 connected to the baffle 63 is arranged on the mounting tube 41. When the driving motor 64 rotates once, the baffle 63 is opened once, allowing a bolt 76 in the feeding tube 62 to pass through and fall to the discharge port 43 for preparation to realize automatic feeding of the screw. At the same time, the driving motor 64 is connected to the Hall sensor 44 of the discharge port 43 through the PLC control module. When the screw is separated from the discharge port 43, the driving motor 64 rotates once to allow the screw to be sent to the discharge port 43.

[0035] like Figure 6As shown, a support mechanism 7 is also provided at the discharge port 43 of the mounting tube 41. The support mechanism 7 includes a mounting seat 71 arranged on the mounting tube 41 and located at the discharge port 43. A through hole concentric with the discharge port 43 is provided on the mounting seat 71. A mounting ring groove 72 is provided on the circumference of the through hole. A plurality of arc-shaped support blocks 73 are slidably provided in the mounting ring groove 72. The plurality of support blocks 73 are distributed on the circumference of the through hole. A return spring 74 is abutted between the support block 73 and the mounting ring groove 72. The return spring 74 drives the support block 73 to move toward the center of the discharge port 43. Under the action of the return spring 74, the plurality of support blocks 73 can move toward the center of the through hole to form an annular support ring. The size of the hole matches the outer diameter of the screw thread, which can just serve as a limit support for the screw head; and the support block 73 is provided with a chamfer on one side relative to the through hole, and the chamfers of several support blocks 73 can form a guide groove 75 with a conical cross-section; when the screwdriver head 16 squeezes and rotates the screw head downward, the screw head of the screw will be embedded in the guide groove 75, and in the process of the screw moving downward, it will drive the support block 73 to move toward the circumference, so that the screw can be screwed into the screw hole, and after the cabinet is assembled, when the installation tube is separated from the cabinet, the screw will be separated from the support block 73, thereby avoiding the situation where the screw falls off when the screw is still connected to the cabinet.

[0036] In order to accommodate screws of different sizes, a plurality of threaded holes are provided on the periphery of the mounting seat 71 , and a bolt 76 with one end located in the mounting ring groove 72 is threadedly connected in the threaded hole. An abutment block 77 is provided at one end of the bolt 76 located in the mounting ring groove 72 , and a return spring 74 is connected between the support block 73 and the abutment block 77 .

[0037] When the initial position of the support block 73 needs to be adjusted according to the size of the screw, the staff can control the initial position of the abutment block 77 by turning the screw, thereby adjusting the position of the support block 73 to change the diameter of the through hole of the support ring formed by several support rings to adapt to the size of different screws, thereby improving the practicality of the device.

[0038] like Figure 5 As shown, on the basis of the above, in order to facilitate the replacement of the screwdriver head 16, the lower end of the mounting cylinder is threadedly connected with a threaded cover 8, the discharge port 43 is arranged on the threaded cover 8, and the inner wall of the insertion hole 9 is provided with a guide groove 12 connected to the clamping groove 11, and the width of the guide groove 12 gradually decreases from the insertion hole 9 to the clamping groove 11. The inner wall of the mounting cylinder and the side wall of the mounting cylinder are provided with a vertically arranged disassembly groove 13, and the friction strip 14 is arranged around the screwdriver head 16.

[0039] By rotating the threaded cover 8, the internal structure of the installation tube can be revealed, and then some slender tools such as a screwdriver can be used to reach into the installation tube through the vertically arranged disassembly groove 13, and then the screwdriver head 16 is pushed downward by the friction strip 14 to separate from the coupling sleeve 423, thereby completing the disassembly of the tool head; and for installation, the corresponding screwdriver head 16 can be directly inserted into the installation tube, and then plugged into the socket 9 at the bottom of the coupling sleeve 423, and fixed by mutual attraction, and finally the threaded cover 8 with the support mechanism 7 can be installed back.

[0040] like Figure 7 As shown, a snap-in groove 11 is provided on the inner wall of the socket 9, and a snap-in block that snaps into cooperation with the snap-in groove 11 is provided on the side wall of the plug 10. The snap-in groove 11 and the snap-in block can limit the rotation of the socket 9 relative to the plug 10, thereby ensuring that the torque of the coupling sleeve 423 can be smoothly transmitted to the screwdriver head 16, so that the screwdriver head 16 can rotate smoothly; and the guide groove 12 connected to the snap-in groove 11, the guide groove 12 can guide the snap-in block to be inserted into the snap-in groove 11, so that when the staff disassembles and replaces the screwdriver head 16, there is no need to calibrate the position of the snap-in groove 11 and the snap-in block, and the efficiency of disassembly and assembly is more convenient and quick.

[0041] In order to improve the efficiency of installation, since the cabinet is generally rectangular and the positions of the screw holes on one side are basically symmetrical, the present application can install another screw mechanism 4 on the mounting plate 52 through a slide rail and a slider. The two screw mechanisms 4 are symmetrically arranged on the mounting plate 52 and the two racks 56 are respectively engaged with the upper and lower parts of the gear 55. When the gear 55 rotates, the two screw mechanisms 4 will move toward each other by the same distance, thereby realizing the synchronous installation of the two symmetrical screw holes, further improving the assembly and tightening effect of the screws, and making the equipment more efficient.

[0042] A centering block 15 is also provided between the two screw mechanisms 4 of the mounting plate 52. The centering block 15 is aligned with and abuts against the exact center of the cabinet to ensure that the cabinet always remains balanced and stable during the screwing process.

[0043] Working principle: When the equipment starts working, first, the vibration plate will vibrate to allow the screws above it to be sent to the feed port 61 of the mounting tube 41 through the feed pipe 62. At this time, since there are no screws at the discharge port 43 of the mounting tube 41, the drive motor 64 will control the baffle 63 to rotate one circle, so that the screws in the feed pipe 62 are sent to the discharge port 43 of the mounting tube 41 through the feed port 61 and are limited by the support ring composed of several support plates. After that, the screws will trigger the Hall sensor 44, and then the Hall sensor 44 will send a signal to the PLC control module, and the PLC control module will control the electromagnet 425 to cut off the power. After the electromagnet 425 is cut off, the downward pressure spring 45 will drive the coupling sleeve 42 3 moves in the direction of the screw until the screwdriver head 16 abuts against the screw. At the same time, in the above process, the lifting cylinder 53 and the servo motor in the driving mechanism 5 will drive the two mounting tubes to move, so that the two mounting tubes are moved to the specified position of the cabinet, and then the lifting cylinder 53 will drive the mounting tube to descend, so that the screw is aligned with the screw hole position on the cabinet, and then the rotating motor 421 will rotate, thereby driving the screwdriver head 16 to rotate to realize the rotation of the screw. In this process, the screwdriver head 16 will abut against the screw under the action of the downward pressure spring 45, thereby realizing the tightening of the screw; and the support block 73 will be squeezed toward the circumferential side due to the downward pressure of the screw, thereby realizing the separation of the screw from the mounting tube.

[0044] When the screw is separated from the installation cylinder, the driving mechanism 5 will drive the installation cylinder to move to the next station. At this time, the Hall sensor 44 will energize the electromagnet 425 through the PLC control module. The electromagnet 425 will absorb the locking block 424 and drive the coupling sleeve 423 to overcome the force of the downward pressure spring 45 and move upward. Then the baffle 63 rotates to allow the screw to enter for the installation of the next screw.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated and efficient screw assembly device, comprising a workbench (1) and an electric control box (2), wherein the workbench (1) is provided with a fixture (3) for placing a product to be assembled and a screw mechanism (4) located above the fixture (3), wherein the screw mechanism (4) is connected to a driving mechanism (5); characterized in that: The screw mechanism (4) comprises a mounting tube (41) connected to the workbench (1) via a driving mechanism (5); the mounting tube (41) is hollow and has a discharge port (43) at its lower end; a screwdriver head (16) is slidably disposed in the mounting tube (41); the screwdriver head (16) is connected to a power mechanism (42); the power mechanism (42) is connected to the driving mechanism (5) and is used to control the screwdriver head (16) to rise and fall and rotate; and a feeding mechanism (6) is also included, the feeding mechanism (43) The mechanism (6) comprises a feed port (61) arranged on a side wall of the mounting tube (41), the feed port (61) being located between the screwdriver head (16) and the discharge port (43), and being connected to a vibration plate for placing screws via a feed pipe (62), the feed pipe (62) being arranged obliquely to the feed port (61); a baffle (63) being rotatably arranged at the feed port (61), the baffle (63) being connected to a drive motor (64) which is arranged on the mounting tube (41) and is connected to the baffle (63); The discharge port (43) of the mounting tube (41) is arranged on a support mechanism (7) for supporting the screw, and when the screwdriver head (16) drives the screw to move downward and rotate under the action of the power mechanism (42), the support mechanism (7) releases the support for the screw; The support mechanism (7) comprises a mounting seat (71) arranged on the mounting tube (41) and located at the discharge port (43); a through hole concentric with the discharge port (43) is arranged on the mounting seat (71); a mounting ring groove (72) is arranged around the through hole; a plurality of arc-shaped support blocks (73) are slidably arranged in the mounting ring groove (72); the plurality of support blocks (73) are distributed around the through hole; a return spring (74) is abutted between the support block (73) and the mounting ring groove (72); the return spring (74) drives the support block (73) to move toward the center of the discharge port (43); A plurality of threaded holes are provided on the circumferential side of the mounting seat (71), a bolt (76) having one end located in the mounting ring groove (72) being threadedly connected to the threaded hole, an abutment block (77) being provided at one end of the bolt (76) located in the mounting ring groove (72), and the return spring (74) is connected between the support block (73) and the abutment block (77).

2. The automated and efficient screw assembly equipment according to claim 1, characterized in that: The power mechanism (42) comprises a rotating motor (421) fixedly arranged at the top end of the mounting tube (41); the output end of the rotating motor (421) extends into the mounting tube (41) and is connected to a rotating shaft (422); one end of the rotating shaft (422) facing the screwdriver head (16) is slidably connected to a coupling sleeve (423); the bottom of the coupling sleeve (423) is plug-fitted with the screwdriver head (16); a downward pressure spring (45) is abutted between the coupling sleeve (423) and the rotating shaft (422). ), the downward pressure spring (45) is used to drive the coupling sleeve (423) to allow the screwdriver head (16) to abut against the screw; the rotating shaft (422) is also provided with an electromagnet (425) connected to the electric control box (2); the coupling sleeve (423) is provided with a locking block (424) attracted to the electromagnet (425); a Hall sensor (44) electrically connected to the electromagnet (425) is provided at the discharge port (43); and the Hall sensor (44) is electrically connected to the drive motor (64).

3. The automatic and efficient screw assembly equipment according to claim 2, characterized in that: The coupling sleeve (423) and the screwdriver head (16) are plugged together via a connection structure, the connection structure comprising a socket (9) arranged at the bottom of the coupling sleeve (423) and a plug (10) arranged at one end of the screwdriver head (16) facing the coupling sleeve (423), the inner wall of the socket (9) being provided with a vertically arranged snap-fitting groove (11), the outer wall of the plug (10) being provided with a snap-fitting block snap-fitting with the snap-fitting groove (11), and the end surface of the socket (9) in contact with the plug (10) being further provided with a magnetic attraction block.

4. The automatic and efficient screw assembly equipment according to claim 3, characterized in that: A chamfer is provided on one side of the support block (73) opposite to the through hole, and the chamfers of a plurality of the support blocks (73) can form a guide groove (12) with a conical cross section.

5. The automated and efficient screw assembly equipment according to claim 3, characterized in that: The lower end of the mounting tube (41) is threadedly connected to a threaded cover (8), and the discharge port (43) is arranged on the threaded cover (8).

6. The automatic and efficient screw assembly equipment according to claim 5, characterized in that: The inner wall of the insertion hole (9) is provided with a guide groove (12) which is in communication with the clamping groove (11), and the width of the guide groove (12) gradually decreases from the insertion hole (9) towards the clamping groove (11).

7. The automatic and efficient screw assembly equipment according to claim 6, characterized in that: A vertically arranged disassembly groove (13) is provided on the side wall of the mounting tube (41), and a friction strip (14) is provided on the peripheral side of the screwdriver head (16).

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