Automatic screwing machine for workpieces

Abstract

The utility model relates to an automatic screwing machine of work piece, it includes: frame, a pair of slide rail is established in the top of frame, clamp is slid with slide rail cooperation, gantry is fixed to the rear end of frame, the liftable screwing machine that can ascend and descend is connected with the transverse sliding of gantry, the turnover motor is installed on the clamp, the rotating shaft is driven by turnover motor, the disc is fixed to the rotating shaft, the disc is radially provided with the gap, infrared emitter and infrared receiver are established in the opposite side of gap, infrared receiver is used to receive the infrared signal that infrared emitter sent, processing module, the utility model discloses novel structure, through infrared emitter and infrared receiver's signal interruption / resume, real -time monitoring the rotation state of disc: signal interruption triggers turnover motor to start, ensures that the turnover action is in time response, signal recovery accurate judgment target angle, control motor stops, realize the high accuracy control of turnover angle, avoid excessive turnover or angle deviation.

Description

Technical Field

[0001] This utility model relates to a screw-driving machine, specifically an automatic screw-driving machine for workpieces. Background Technology

[0002] In modern automated manufacturing processes, screw installation is a crucial assembly step, and its efficiency and precision directly impact product production efficiency and quality. Traditional screw installation relies heavily on manual labor, resulting in high labor intensity, low production efficiency, and difficulty in guaranteeing assembly accuracy. With the development of automation technology, automatic screw-driving machines have emerged, significantly improving production efficiency, but they still face many challenges in practical applications.

[0003] Currently, automatic screw-driving machines on the market often require manual assistance to flip the workpiece when handling workpieces that need to be screwed on multiple sides, which limits the degree of automation and prevents fully unmanned operation. Some machines with workpiece flipping functions typically use complex mechanical structures (such as gear drives and multi-axis linkage mechanisms) or rely on high-precision angle sensors (such as encoders and gyroscopes) to control the flipping angle. This not only increases the manufacturing cost and maintenance difficulty of the equipment, but also makes the complex mechanical transmission components prone to wear during long-term use, affecting the flipping accuracy and stability. Furthermore, existing equipment struggles to achieve precise coordination between the flipping action and the screw-driving process in its flipping control logic, easily leading to problems such as angle deviation and action delay, resulting in decreased production efficiency and increased product defect rates. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an automatic screw-driving machine for workpieces, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0006] frame;

[0007] A pair of slide rails located at the top of the frame;

[0008] A clamp that slides with the slide rail;

[0009] A gantry frame fixed to the rear end of the machine frame;

[0010] A liftable screwdriver that slides laterally with a gantry frame;

[0011] A tilting motor mounted on the fixture;

[0012] A rotating shaft driven by a flip motor;

[0013] A disc fixed on a rotating shaft, the disc having a notch radially formed;

[0014] An infrared transmitter and an infrared receiver are provided on opposite sides of the opening, wherein the infrared receiver is used to receive the infrared signal emitted by the infrared transmitter;

[0015] The processing module is electrically connected to the flip motor and the infrared receiver, respectively;

[0016] The processing module is configured to: control the flip motor to start when the infrared receiver changes from continuously receiving infrared signals to signal interruption; and control the flip motor to stop when the infrared receiver resumes signal reception.

[0017] Preferably, the central angle of the notch is 90° or 180°.

[0018] Preferably, the flipping motor is fixed to the end of the clamp via a bracket.

[0019] Preferably, the infrared transmitter and the infrared receiver are respectively embedded on the two sides of the notch.

[0020] Preferably, the processing module is further configured to calculate the flip angle of the disk based on the duration of the infrared signal interruption.

[0021] Preferably, the slide rail is a dovetail groove slide rail or a linear guide rail.

[0022] Beneficial effects: Real-time monitoring of the disk's rotation status via signal interruption / recovery from the infrared transmitter and receiver.

[0023] The flip motor is triggered when the signal is interrupted to ensure timely response to the flipping action;

[0024] When the signal is recovered, the target angle is accurately determined and the motor is stopped, achieving high-precision control of the flipping angle and avoiding excessive flipping or angle deviation.

[0025] Intelligent Angle Calculation Based on Signal Duration

[0026] The processing module calculates the disk's flip angle by measuring the duration of the infrared signal interruption. Combined with mechanical structural parameters (such as disk rotation speed and notch position), it achieves non-contact angle monitoring and intelligent calculation, eliminating the need for additional angle sensors, simplifying the structure and reducing costs.

[0027] By combining mechanical structure (linkage between notch and disc) with electronic control (infrared sensing + processing module), it eliminates the need for complex mechanical transmission or high-precision detection equipment. It features a compact structure, low cost, high reliability, and facilitates equipment maintenance and debugging. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the second-view three-dimensional setting structure of this utility model;

[0031] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of A in the middle;

[0032] The following are the labels in the diagram: 1. Frame; 2. Slide rail; 3. Fixture; 4. Gantry frame; 5. Screw driver; 6. Tilting motor; 7. Coupling; 8. Shaft; 9. Disc; 10. Notch; 11. Infrared transmitter; 12. Infrared receiver. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.

[0034] Example 1, by Figure 1-3 This utility model provides an automatic screw-driving machine for workpieces, including a frame 1, a slide rail 2, a clamp 3, a gantry frame 4, a screw-driving machine 5, a tilting motor 6, a coupling 7, a rotating shaft 8, a disc 9, a notch 10, an infrared transmitter 11, and an infrared receiver 12.

[0035] Rack 1;

[0036] A pair of slide rails 2 are located at the top of the frame 1;

[0037] The clamp 3 slides in conjunction with the slide rail 2;

[0038] Gantry 4 is fixed to the rear end of frame 1;

[0039] The liftable screwdriver 5 is laterally slidably connected to the gantry frame 4;

[0040] The flipping motor 6 is mounted on the clamp 3;

[0041] A rotating shaft 8 driven by a flip motor 6;

[0042] A disc 9 fixed on a rotating shaft 8, the disc 9 having a notch 10 radially opened;

[0043] An infrared transmitter 11 and an infrared receiver 12 are provided on opposite sides of the opening 10. The infrared receiver 12 is used to receive the infrared signal emitted by the infrared transmitter 11.

[0044] The processing module is electrically connected to the flip motor 6 and the infrared receiver 12 respectively;

[0045] The processing module is configured to: control the flip motor 6 to start when the infrared receiver 12 changes from continuously receiving infrared signals to signal interruption; and control the flip motor 6 to stop when the infrared receiver 12 resumes signal reception.

[0046] Frame 1: As the main support structure of the equipment, it provides a stable mounting base for other components.

[0047] Slide rail 2: A pair of slide rails 2 located on the top of the frame 1. They are either dovetail slide rails or linear guides, which can achieve high-precision sliding guidance. They slide in cooperation with the fixture 3 to drive the fixture 3 to move on the frame.

[0048] Fixture 3: It works in conjunction with slide rail 2 to fix the workpiece to be processed. It is also equipped with components such as flip motor 6 to realize the flipping operation of the workpiece.

[0049] Gantry 4: Fixed to the rear end of frame 1, providing an installation and sliding support structure for screw driving machine 5.

[0050] Screw driving machine 5: It is horizontally slidably connected to the gantry frame 4 and can be raised and lowered. It can adjust its position in three-dimensional space according to different work requirements to drive screws on different parts of the workpiece.

[0051] The flipping motor 6 is fixed to the end of the fixture 3 by a bracket. It is the power source for flipping the workpiece and can drive the rotating shaft 8 to rotate.

[0052] Coupling 7: Connects the tilting motor 6 and the rotating shaft 8 to transmit power and ensure the stability and reliability of power transmission.

[0053] Rotating shaft 8: Driven by the flipping motor 6, it drives the disc 9 fixed on it to rotate.

[0054] Disc 9: Fixed on the rotating shaft 8, with a notch 10 in the radial direction. Its rotation can cause the workpiece to flip. The central angle of the notch 10 is 90° or 180°, and a disc with a suitable angle can be selected according to actual needs.

[0055] Notch 10: Used to trigger signal changes between infrared transmitter 11 and infrared receiver 12, thereby enabling control and monitoring of the flip angle of disk 9.

[0056] Infrared transmitter 11 and infrared receiver 12: respectively embedded on both sides of the notch 10. Infrared transmitter 11 is used to transmit infrared signals, and infrared receiver 12 is used to receive infrared signals emitted by infrared transmitter 11. The two work together to detect the flip state of disk 9.

[0057] The processing module, electrically connected to both the flip motor 6 and the infrared receiver 12, is the core control unit of the device. It is configured to: start the flip motor 6 when the infrared receiver 12 changes from continuously receiving infrared signals to signal interruption; and stop the flip motor 6 when the infrared receiver 12 resumes signal reception. Simultaneously, the processing module can calculate the flip angle of the disk 9 based on the duration of the infrared signal interruption, thereby achieving precise flip control.

[0058] Working principle: When this utility model is in use, the automatic screw-driving machine works in concert to complete the screw installation and workpiece flipping. In the initial state, the clamp 3 fixes the workpiece to be processed, located at the starting position of the slide rail 2 of the frame 1, and the infrared signal emitted by the infrared transmitter 11 is continuously received by the infrared receiver 12.

[0059] When the workpiece needs to be flipped, as the disc 9 rotates, the notch 10 gradually moves between the infrared transmitter 11 and the infrared receiver 12. The infrared signal received by the infrared receiver 12 is interrupted. After the processing module detects the signal change, it immediately controls the flipping motor 6 to start, and drives the rotating shaft 8 through the coupling 7, so that the disc 9 and the workpiece fixed on it begin to flip.

[0060] During the flipping process, the processing module calculates the flipping angle of disk 9 based on the duration of the infrared signal interruption. When disk 9 rotates notch 10 through a certain angle, the infrared signal emitted by infrared transmitter 11 is received again by infrared receiver 12. The processing module determines that the workpiece has been flipped to the target angle and then controls the flipping motor 6 to stop, accurately completing the workpiece flipping operation. Afterward, the equipment can continue to perform other screw-driving processes, and so on, to achieve automatic screw-driving operation of the workpiece.

[0061] Beneficial effect: Real-time monitoring of the rotation status of disk 9 via signal interruption / recovery of infrared transmitter 11 and infrared receiver 12.

[0062] The flip motor is triggered when the signal is interrupted to ensure timely response to the flipping action;

[0063] When the signal is recovered, the target angle is accurately determined and the motor is stopped, achieving high-precision control of the flipping angle and avoiding excessive flipping or angle deviation.

[0064] Intelligent Angle Calculation Based on Signal Duration

[0065] The processing module calculates the flip angle of disk 9 by the duration of the infrared signal interruption. Combined with mechanical structural parameters (such as disk rotation speed, notch position, etc.), it realizes non-contact angle monitoring and intelligent calculation, eliminating the need for additional angle sensors, simplifying the structure and reducing costs.

[0066] By combining mechanical structure (linkage between notch 10 and disc 9) with electronic control (infrared sensing + processing module), it eliminates the need for complex mechanical transmission or high-precision detection equipment, resulting in a compact structure, low cost, high reliability, and easy equipment maintenance and debugging.

[0067] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic screw-driving machine for workpieces, characterized in that, include: Rack (1); A pair of slide rails (2) are located on the top of the frame (1); A clamp (3) that slides in conjunction with the slide rail (2); Gantry (4) fixed to the rear end of the frame (1); A liftable screwdriver (5) that is laterally slidably connected to the gantry frame (4); The flipping motor (6) is mounted on the clamp (3); A rotating shaft (8) driven by a flip motor (6); A disk (9) fixed on a rotating shaft (8) has a notch (10) in the radial direction. An infrared transmitter (11) and an infrared receiver (12) are provided on opposite sides of the opening (10), wherein the infrared receiver (12) is used to receive the infrared signal emitted by the infrared transmitter (11); The processing module is electrically connected to the flip motor (6) and the infrared receiver (12) respectively; The processing module is configured to: control the flip motor (6) to start when the infrared receiver (12) changes from continuously receiving infrared signals to signal interruption; and control the flip motor (6) to stop when the infrared receiver (12) resumes receiving signals.

2. The automatic screw-driving machine for workpieces according to claim 1, characterized in that: The central angle of the notch (10) is 90° or 180°.

3. The automatic screw-driving machine for workpieces according to claim 2, characterized in that: The flipping motor (6) is fixed to the end of the clamp (3) by a bracket.

4. The automatic screw-driving machine for workpieces according to claim 3, characterized in that: The infrared transmitter (11) and infrared receiver (12) are respectively embedded on the two sides of the notch (10).

5. The automatic screw-driving machine for workpieces according to claim 4, characterized in that: The processing module is further configured to calculate the flip angle of the disk (9) based on the duration of the infrared signal interruption.

6. The automatic screw-driving machine for workpieces according to claim 5, characterized in that: The slide rail (2) is a dovetail groove slide rail or a linear guide rail.

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