An automatic screw assembly machine

Abstract

The utility model relates to screw assembly machine technical field, concretely is a kind of automatic screw assembly machine, the utility model is used to carry out screw assembly to circuit breaker, including shell and screw feed tank, screw feed tank side is provided with straight conveying belt, and straight conveying belt is set through shell, control panel is installed to shell outer wall, the inside fixed mounting of shell is mesa big board, mesa big board upper end surface is provided with lock screw mechanism, mesa big board upper end surface and the side position close to straight conveying belt are installed with positioning clamp, mesa big board bottom surface is installed with several lifting mechanisms, and lifting mechanism and positioning clamp are mutually matched, screw feed tank inside fixed mounting has feed bin, feed bin outside is fixedly connected with transmission belt three, the utility model utilizes automation mechanism and servo tightening technology, can conveniently carry out each specification model switching, multi-shaft simultaneous assembly is conducive to rapid batch production, greatly saves manufacturing cost, improves production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of screw assembly machine technology, specifically an automatic screw assembly machine. Background Technology

[0002] Currently in the switchgear industry, wiring screws are an indispensable accessory for connecting and fixing wires. A multi-pole circuit breaker has multiple wiring screws, and the common assembly method is to use an electric screwdriver to screw in each screw one by one.

[0003] Existing production technologies are not only repetitive and inefficient, but also costly. Furthermore, the lack of sophisticated torque control systems and data feedback mechanisms makes it difficult to guarantee product quality. Utility Model Content

[0004] The purpose of this invention is to provide an automatic screw assembly machine to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: An automatic screw assembly machine is used to assemble screws on circuit breakers. It includes a housing and a screw supply box. A straight conveyor belt is provided on one side of the screw supply box and the straight conveyor belt passes through the housing. A control panel is installed on the outer wall of the housing. A large table is fixedly installed inside the housing. A screw locking mechanism is provided on the upper surface of the large table. A positioning clamp is installed on the upper surface of the large platform and near the direct conveyor belt. Several lifting mechanisms are installed on the bottom surface of the large platform, and the lifting mechanisms cooperate with the positioning clamp.

[0006] Preferably, a feeding hopper is fixedly installed inside the screw feeding box, a conveyor belt is fixedly connected to the outside of the feeding hopper, and a soundproof cover is installed on the upper surface of the table and at the corner of the outer shell.

[0007] Preferably, a vibrating disc is provided inside the soundproof cover, and one end of the transmission belt is located inside the soundproof cover.

[0008] Preferably, a screw inspection mechanism one and a screw inspection mechanism two are fixedly installed on the upper surface of the table plate near the positioning fixture.

[0009] Preferably, a material kicking mechanism is installed on the upper surface of the platform and inside the conveyor belt, and a conveyor belt is fixedly installed on one side of the conveyor belt.

[0010] Preferably, a screw feeding mechanism is provided on the upper surface of the tabletop and near the soundproof cover, and a conveyor belt is fixedly installed on the outer wall of the screw feeding box.

[0011] Preferably, a feeding baffle mechanism and a feeding clamping mechanism are installed on the upper surface of the table plate and near the feeding positioning fixture, and a material kicking and shifting mechanism is provided on the inner wall of the outer shell near the screw locking mechanism.

[0012] The beneficial effects of this utility model are: This invention utilizes automated mechanisms and servo tightening technology to facilitate convenient switching between various specifications and models, such as single-stage and multi-stage products with different torque parameters. Simultaneous multi-axis assembly facilitates rapid mass production, significantly reducing manufacturing costs and improving production efficiency and product quality. By employing automated assembly technology and a data management system, it can meet the requirements of rapid mass production, quality control, and data analysis and storage. At the same time, it frees workers from cumbersome production processes. Various high-precision transmission, guiding, positioning, handling, clamping, tightening, and detection systems are adopted to ensure high precision and high reliability of product assembly, thereby strictly controlling quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a partial front view of the present invention; Figure 4 This is a schematic diagram of the structure of the feed hopper and the conveyor belt in this utility model; Figure 5 This is a schematic diagram of the structure of the large tabletop and screw inspection mechanism II in this utility model; Figure 6 This is a schematic diagram of the positioning clamp and lifting mechanism in this utility model; Figure 7 This is a schematic diagram of the screw-locking mechanism and the circuit breaker in this utility model.

[0014] The attached figures are labeled as follows: 1. Outer casing; 2. Screw tightening mechanism; 3. Material ejection mechanism; 4. Screw inspection mechanism one; 5. Positioning fixture; 6. Conveyor belt one; 7. Conveyor belt two; 8. Straight conveyor belt; 9. Lifting mechanism; 10. Feeding baffle mechanism; 11. Tabletop panel; 12. Soundproof cover; 14. Screw feeding box; 15. Material ejection and shifting mechanism; 16. Feeding clamping mechanism; 17. Screw distribution mechanism; 18. Feeding bin; 19. Conveyor belt three; 20. Vibratory feeder; 21. Control panel; 23. Screw inspection mechanism two; 24. Circuit breaker. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] An automatic screw assembly machine, such as Figures 1-7 As shown, the assembly for screwing circuit breaker 24 includes a housing 1 and a screw feeder 14. A conveyor belt 8 is provided on one side of the screw feeder 14 and passes through the housing 1. A control panel 21 is installed on the outer wall of the housing 1. A large table plate 11 is fixedly installed inside the housing 1. A screw-locking mechanism 2 is provided on the upper surface of the large table plate 11. The screw-locking mechanism 2 is equipped with a multi-axis servo tightening system for simultaneously screwing multiple wiring screws into the fixing guide plate on the circuit breaker 24 with the required torque. A multi-axis robot arm is equipped to synchronously grasp the screws, and a servo motor drives the screwdriver bit to press down. The torque is preset by the control panel 21. A positioning clamp 5 is installed on the upper surface of the large table plate 11 near the side of the conveyor belt 8. Several lifting mechanisms 9 are installed on the bottom surface of the large table plate 11, and the lifting mechanisms 9 cooperate with the positioning clamp 5 to fix the circuit breaker 24.

[0017] The screw feed box 14 has a feed hopper 18 fixedly installed inside. The feed hopper 18 is connected to a conveyor belt 19. A soundproof cover 12 is installed on the upper surface of the table 11 and at the corner of the outer shell 1. A vibrating plate 20 is installed inside the soundproof cover 12. The vibrating plate 20 is used to arrange the wiring screws in sequence. One end of the conveyor belt 19 is located inside the soundproof cover 12. The soundproof cover 12 can reduce the noise generated by the vibrating plate 20 when it is working and improve the working environment.

[0018] Screw inspection mechanism 1 4 and screw inspection mechanism 2 3 are fixedly installed on the upper surface of the table panel 11 near the positioning fixture 5. Screw inspection mechanism 1 4 and screw inspection mechanism 2 3 are used to detect whether the screws are tightened properly and whether the torque is qualified. Screw inspection mechanism 1 4 is equipped with a laser sensor to detect the screw height. Screw inspection mechanism 2 3 is equipped with a torque sensor and multiple screwdriver bits. The torque sensor generates a tightening curve in real time and compares it with the preset value to determine the pass rate. The screwdriver bits are used to tighten the screws. A kicking mechanism 3 is installed on the upper surface of the table panel 11 and inside the conveyor belt 8. The kicking mechanism 3 can remove defective products and classify them according to the test results. Qualified products flow into the next process.

[0019] A conveyor belt 6 is fixedly installed on one side of the conveyor belt 8. A screw distribution mechanism 17 is set on the upper surface of the table plate 11 and near the soundproof cover 12. The screw distribution mechanism 17 is used to arrange multiple wire screws at equal distances to leave space for gripping. A conveyor belt 7 is fixedly installed on the outer wall of the screw supply box 14. The conveyor belt 7 can supply unqualified screws that are put into the screw supply box 14 and transport them out.

[0020] A feeding baffle mechanism 10 and a feeding clamping mechanism 16 are installed on the upper surface of the tabletop 11 and near the side of the positioning fixture 5. The feeding baffle mechanism 10 and the feeding clamping mechanism 16 work together to control the feeding rhythm of the circuit breaker 24 to ensure accurate positioning. A kicking and shifting mechanism 15 is set on the inner wall of the outer shell 1 near the screw locking mechanism 2. The kicking mechanism 3 and the kicking and shifting mechanism 15 can push defective products into the waste channel using the pneumatic push rod in the kicking mechanism 3 and the kicking and shifting mechanism 15 according to the test results. Good products are output through the conveyor belt 6.

[0021] In use, the circuit breaker 24 enters the housing 1 through the direct conveyor belt 8. The conveyor belt 6 connects the upper and lower processes. At this time, the lifting cylinder of the lifting mechanism 9 lifts up from the bottom of the table plate 11 and works in coordination with the positioning fixture 5, the feeding baffle mechanism 10, and the feeding clamping mechanism 16 to clamp the circuit breaker 24. During this process, the screws in the feeding bin 18 of the screw feeding box 14 are oriented and sorted by the vibrating plate 20, and then enter the screw sorting mechanism 17 through the conveyor belt 19. The stepper motor equipped with the screw sorting mechanism 17 is turned on and the screws are arranged at a preset distance. At this time, the multi-axis robot of the screw locking mechanism 2 simultaneously grabs multiple screws. Under the drive of the equipped servo motor, the screw locking mechanism 2 causes the screw bit to press down and screw in the screws synchronously according to the preset torque of the control panel 21. The screw inspection mechanism 4 detects the screw height through the laser sensor. The torque sensor of the screw inspection mechanism 23 provides real-time feedback on the tightening curve. The kicking mechanism 3 pushes the defective products into the waste channel according to the detection results, and the good products are output through the conveyor belt 6. The control system of this screw machine uses a PLC as its core for calculation and coordinates the timing of the actions of each mechanism. Through the touch screen on the control panel 21, it supports parameter settings, such as torque and speed, model switching, and data storage, such as storing the torque curve of each screw, setting torque parameters, and storing assembly data.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic screw assembly machine for assembling screws on a circuit breaker (24), comprising a housing (1) and a screw feeder (14), characterized in that, A straight conveyor belt (8) is provided on one side of the screw feed box (14), and the straight conveyor belt (8) passes through the outer shell (1). A control panel (21) is installed on the outer wall of the outer shell (1). A large table plate (11) is fixedly installed inside the outer shell (1). A screw locking mechanism (2) is provided on the upper surface of the large table plate (11). A positioning clamp (5) is installed on the upper surface of the tabletop plate (11) and near the side of the direct conveyor belt (8). Several lifting mechanisms (9) are installed on the bottom surface of the tabletop plate (11), and the lifting mechanisms (9) cooperate with the positioning clamp (5).

2. The automatic screw assembly machine according to claim 1, characterized in that, The screw feed box (14) has a feed hopper (18) fixedly installed inside. The feed hopper (18) is connected to a conveyor belt (19) fixedly outside. The upper surface of the table plate (11) and the corner of the outer shell (1) are equipped with a soundproof cover (12).

3. An automatic screw assembly machine according to claim 2, characterized in that, The soundproof cover (12) is equipped with a vibrating plate (20), and one end of the three transmission belts (19) is located inside the soundproof cover (12).

4. An automatic screw assembly machine according to claim 2, characterized in that, The upper surface of the tabletop (11) near the positioning fixture (5) is fixedly equipped with a screw inspection mechanism 1 (4) and a screw inspection mechanism 2 (23).

5. An automatic screw assembly machine according to claim 1, characterized in that, A kicking mechanism (3) is installed on the upper surface of the tabletop (11) and inside the conveyor belt (8). A conveyor belt (6) is fixedly installed on one side of the conveyor belt (8).

6. An automatic screw assembly machine according to claim 5, characterized in that, A screw feeding mechanism (17) is provided on the upper surface of the tabletop (11) and near the soundproof cover (12). A conveyor belt (7) is fixedly installed on the outer wall of the screw feeding box (14).

7. An automatic screw assembly machine according to claim 6, characterized in that, The upper surface of the tabletop (11) and the side near the positioning fixture (5) are equipped with a feeding baffle mechanism (10) and a feeding clamping mechanism (16). The inner wall of the outer shell (1) is provided with a kicking and shifting mechanism (15) near the screw locking mechanism (2).

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