Digital installation system for steel wire thread insert

Abstract

The invention belongs to the technical field of automatic and digital assembly, and relates to a digital mounting system for a steel wire thread insert. The automatic mounting system for the steel wire thread inserts of the aluminum alloy box and shell parts comprises a protective cover, a control system, an automatic feeding mechanism, a man-machine interaction system, a part placing tool, a steel wire thread insert mounting tool library and a tightening mechanism, according to the steel wire thread insert mounting device, the processes of feeding, mounting and the like of the steel wire thread insert are automatically executed, the process parameters such as torque, depth and the number of turns are precisely controlled, then high-quality and high-efficiency mounting of the steel wire thread insert is achieved, and meanwhile, the process parameters are collected and accumulated in real time, so that traceability and optimization of the process parameters are achieved; the problems that manual installation efficiency of aluminum alloy part steel wire thread inserts of special vehicles is low, and assembly quality consistency is difficult to improve for a long time are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of automated and digital assembly, and relates to a digital installation system for wire thread sleeves of aluminum alloy box and shell parts. Background Art

[0002] As special vehicles develop towards unmanned, lightweight and intelligent, a large number of parts made of lightweight alloy materials such as aluminum alloy are used. However, the strength of aluminum alloy materials is relatively low, and the internal threads are often damaged during use. Wire screw inserts are needed as internal thread fasteners to be used in conjunction with aluminum alloy housings and shell parts, which not only reduces the weight of parts, but also ensures the strength of the internal thread connection of parts. At present, wire screw inserts for aluminum alloy housings and shell parts of special vehicles are usually installed manually, that is, operators use simple tooling to manually install wire screw inserts in the internal threads of aluminum alloy housings and shell parts based on experience.

[0003] The installation quality consistency, poor installation quality and low efficiency of manually installed wire thread inserts are due to the inability to monitor the installation torque, depth, number of turns and other process parameters in real time. Relying on the experience of the operator for installation leads to problems such as sealing failure and shortened thread life on the end faces of the installed wire thread insert parts, which in turn brings quality risks. At the same time, when the installation quality of the wire thread insert is obviously unqualified, the wire thread insert needs to be pulled out and reinstalled. A large number of wire thread inserts are used in special vehicles, and the rework of a large number of wire thread inserts wastes a lot of time, which in turn reduces the production efficiency of the product. With the development of automation and digital technology, the manual installation of wire thread inserts is increasingly incompatible with the high-quality and high-efficiency manufacturing requirements of special vehicles.

[0004] Automation technology is one of the effective ways to improve quality and efficiency. It is more often used in batch production scenarios to solve deterministic problems in the manufacturing process, such as palletizing, handling, gluing, and testing. It replaces the operator's physical labor and can improve the stability of operation, thereby improving quality and efficiency. The torque, depth, number of turns and other process parameters during the installation of the wire thread insert jointly determine the installation quality of the wire thread insert. In order to ensure the installation quality of the wire thread insert, it is necessary to monitor the process parameters in real time, and then combine it with automation devices such as robots and vibrating screens to realize the integrated application of automation and digital technologies, forming a reliable method to improve the installation quality of wire thread inserts. Summary of the invention

[0005] In view of the bottleneck problems of poor installation quality consistency, poor installation quality and low efficiency in manual installation of wire thread inserts, the present invention proposes a digital installation system for wire thread inserts for special vehicle aluminum alloy box and shell parts, which automates the processes of feeding and installing the wire thread inserts, and accurately controls process parameters such as torque, depth and number of turns, thereby achieving high-quality and high-efficiency installation of the wire thread inserts. At the same time, through real-time collection and accumulation of process parameters, the traceability and optimization of process parameters are achieved.

[0006] The technical solution of the present invention is as follows:

[0007] A wire screw insert digital installation system, comprising a protective cover 1, a control system 2, an automatic feeding mechanism 3, a human-machine interaction system 4, a parts placement tool 5, a wire screw insert installation tool library 6, and a tightening mechanism 7;

[0008] The parts placement tool 5, the wire screw insert installation tool library 6, and the tightening mechanism 7 are all placed in the protective cover 1;

[0009] The control system 2 is placed under the protective cover 1 to control the feeding of the wire screw insert, replacement of the installation tool, installation of the wire screw insert, collection and monitoring of process parameters, etc.

[0010] The automatic feeding mechanism 3 and the human-machine interaction system 4 are placed outside the protective cover 1. The relative position of the automatic feeding mechanism 3 and the protective cover 1 satisfies the automatic feeding of various types of wire screw inserts. The relative position of the human-machine interaction system 4 and the protective cover 1 ensures the convenience of operation for the operator.

[0011] Furthermore, the protective cover 1 includes a three-color warning light 8, wheels 9, an automatic lifting door 10 and a protective grating 11. The three-color warning light 8 is arranged on the top of the protective cover 1, and is used to respectively prompt the operation, shutdown and failure of the equipment. The wheels 9 are arranged at the four corners of the protective cover 1 for the rapid movement of the automatic installation system of the wire screw insert. The automatic lifting door 10 is arranged in front of the protective cover 1 for loading and unloading of aluminum alloy parts. The protective grating 11 is arranged behind the automatic lifting door 10 for safety protection and is linked with the control system 2 of the automatic installation system of the wire screw insert. When the equipment is in working state, if the operator touches the protective grating, the automatic installation system of the wire screw insert will stop immediately to ensure safe use.

[0012] Furthermore, the automatic feeding mechanism 3 includes a feeding structure platform 12, a vibrating plate 13 and a feeding mechanism 14; the feeding structure platform 12 is placed on the ground and fixed at four corners with expansion bolts, and is used to place the vibrating plate 13 and the feeding mechanism 14; the vibrating plate 13 is arranged outside the feeding structure platform 12 to realize the screening, arrangement and feeding of the wire screw sleeves, and the wire screw sleeves with the horizontal handle facing downward, the opening facing upward and the cylinder upright are screened out through vibration, and the wire screw sleeves that do not meet the specification requirements are removed; the feeding mechanism 14 pushes the wire screw sleeves screened out by the vibration screen to the feeding port of the wire screw sleeve, waiting to be grabbed by the special installation tool for the wire screw sleeve.

[0013] Furthermore, the feeding mechanism 14 includes a base 15, a cylinder 16, a cylinder 2 17, a feeder 18, a feeder 2 19, a wire screw guide rail 20, and a wire screw guide rail 21; the base 15 is arranged below the feeding mechanism 14 and fixed to the feeding structure platform 12 by bolts; the cylinder 16 and the cylinder 2 17 are arranged vertically to provide power for the feeder; the feeder 18 is coaxial with the cylinder 16, the feeder 2 19 is coaxial with the cylinder 2 17, and the feeder 18 and the feeder 2 19 are arranged vertically, and the feeder 18 and the feeder 2 19 are both arranged in the wire screw guide rail 1 20; the wire screw guide rail 21 connects the vibration disk 13 and the wire screw guide rail 1 20 to ensure that the wire screw selected by the vibration disk 13 is sent to the wire screw guide rail 20 of the feeding mechanism 14.

[0014] Furthermore, the tightening mechanism 7 includes an industrial camera 22, a tightening rod 23, and a tightening shaft 25; the industrial camera 22 is arranged at the lower end of the tightening mechanism 7 to take pictures of the surface of the part after the wire screw sleeve is installed, which is used for determining the installation surface quality and quality tracing; the tightening rod 23 and the tightening shaft 25 are arranged on the same axis; the tightening rod 23 and the tightening shaft 25 are connected together to achieve linkage; when the tightening shaft 25 is working, it drives the tightening rod 23 to rotate, and then drives the wire screw sleeve to rotate to complete the installation of the wire screw sleeve; the tightening shaft 25 is equipped with a displacement sensor and a torque sensor, and when the tightening mechanism moves to the automatic feeding mechanism 3, the automatic feeding mechanism 3 pushes the wire screw sleeve into the wire screw sleeve installation tooling 24, and the tightening mechanism 7 moves to above the threaded hole of the part at the part placement tooling table; the tightening mechanism 7 rotates to install the wire screw sleeve into the threaded hole, and the displacement sensor and the torque sensor obtain displacement and torque data in real time.

[0015] Furthermore, the wire screw insert installation tool library 6 includes a tool placement platform 26, a special wire screw insert installation tool 24, and a sensor 27; the tool placement platform 26 is at the bottom of the wire screw insert installation tool library 6, and is used to place the wire screw insert installation tool 24; the sensor 27 is used to detect whether the wire screw insert installation tool 24 is in place; the wire screw insert installation tool library 6 places multiple sets of wire screw insert installation tools according to the type of wire screw inserts of the aluminum alloy parts on which the wire screw inserts are to be installed, thereby increasing the flexibility of the wire screw insert automatic installation system and improving equipment utilization.

[0016] Furthermore, the control system 2 mainly realizes data storage, signal processing and real-time monitoring of process parameters, and performs real-time monitoring of process parameters such as torque, depth and number of turns. If the process parameters exceed the process parameters specified in the process, the control system will alarm and send a stop signal, the wire thread sleeve installation system will shut down, and manual inspection will be carried out; photos, torque, depth, number of turns, robot programs, alarm information, etc. will be centrally stored.

[0017] Furthermore, the human-machine interaction system 4 is equipped with a host and a display screen, the control system 2 is installed in the host, and the display screen displays alarm information, operation prompt information, process parameters, etc. in real time, realizing visualization of process parameter monitoring.

[0018] Furthermore, the part placement tooling 5 is configured with multiple sets of tooling as needed to meet the fixation of different types of aluminum alloy parts, increase the flexibility of the wire screw insert automatic installation system, and improve equipment utilization.

[0019] The present invention also provides a digital installation method for a wire thread insert, comprising the following steps:

[0020] 1) After the automatic installation system is started, the automatic lifting door 10 is started through the touch screen of the human-machine interaction system 4, and the automatic lifting door 10 is automatically raised; the protective grating 11 is stopped through the touch screen of the human-machine interaction system 4, and the protective grating 11 stops working; the operator clamps the parts to be installed with the wire screw sleeve on the parts placement tooling 5, and pours the wire screw sleeve into the vibration plate 13 of the automatic feeding mechanism 3; the automatic lifting door 10 is closed through the touch screen of the human-machine interaction system 4, and the automatic lifting door 10 is automatically closed; the protective grating 11 is controlled to work through the touch screen of the human-machine interaction system 4, and the protective grating 11 starts working, so far, the preparation work before the wire screw sleeve is pressed is completed;

[0021] 2) Select the type of wire screw insert parts to be installed, control the installation of the wire screw insert through the touch screen of the human-machine interaction system 4, and the automatic feeding mechanism 14 starts to work. The wire screw insert with a fixed posture is screened out through the vibration of the vibration disk 13 and sent to the wire screw insert guide rail 2 21 of the feeding mechanism 7. After a plurality of wire screw inserts that meet the posture requirements are filled in the wire screw insert guide rail 21, the cylinder 2 17 and the feeder 2 19 are linked, and the cylinder 1 16 and the feeder 1 18 are linked to push the wire screw insert to move horizontally and vertically along the guide rail in the wire screw insert guide rail 1 20. At this point, the wire screw insert with a fixed posture is transported to the wire screw insert to be grasped position by the automatic feeding mechanism 14, waiting to be grasped by the tightening mechanism 7;

[0022] 3) A tightening mechanism 7 is installed at the end of the 6-axis robot. The 6-axis robot receives a signal from the control system 2. The end of the robot moves with the tightening mechanism 7 to the wire screw insert installation tool library 6. The wire screw insert installation tool 24 is assembled into the tightening mechanism 7 through an electromagnetic device. The end of the 6-axis robot moves with the tightening mechanism 7 to the position where the wire screw insert is to be grasped. The wire screw insert is pushed into the wire screw insert installation tool 24 by the feeder 2 19 of the automatic feeding mechanism 3. The wire screw insert installation tool 24 pushes the tightening rod 23 into the inner hole of the wire screw insert. The wire screw insert handle cooperates with the screw groove of the tightening rod 23 to ensure that the wire screw insert rotates with the tightening rod 23; the end of the robot moves with the tightening mechanism 7 to the top of the threaded hole of the wire screw insert part to be installed, and the tightening shaft 23 starts to rotate, driving the wire screw insert to rotate, and the installation of the wire screw insert is completed;

[0023] 4) Repeat the above steps 2) and 3) to complete the installation of all the wire screw sleeves on one side of the part, the robot moves the tightening mechanism 7 to the initial position, controls the automatic lifting door 10 to start through the touch screen of the human-computer interaction system 4, and the automatic lifting door rises automatically, and controls the protective grating 11 to stop through the touch screen of the human-computer interaction system 4, and the protective grating 11 stops working; the operator replaces the installation surface of the wire screw sleeve of the part, and repeats steps 2) and 3) until the installation of all the wire screw sleeves of the part is completed.

[0024] Effects of the Invention

[0025] The advantages of the present invention are that it can realize the automation of the feeding, installation and other processes of the wire thread insert, and accurately control the process parameters such as torque, depth, number of turns, so as to achieve high-quality and high-efficiency installation of the wire thread insert. At the same time, by real-time collection and accumulation of the process parameters, the traceability and optimization of the process parameters are achieved; it not only solves the long-standing problems of low manual installation efficiency and difficulty in improving consistent assembly quality of wire thread inserts for special vehicle aluminum alloy parts, but also expands the application scope of automation and digital technology to solve the problem of sharply increasing difficulty of manual assembly under the background of rapid development of special vehicles towards unmanned and lightweight. It has broad reference significance in the special vehicle industry, and the relevant technical solutions and system compositions are universal and can be transplanted in the assembly process of the same type or other products. Direct application can achieve the effect of improving efficiency and quality consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an automatic installation system for wire thread inserts;

[0027] Figure 2 It is a protective shield;

[0028] Figure 3 It is a feeding structure;

[0029] Figure 4 It is the feeding mechanism;

[0030] Figure 5 It is a tightening mechanism;

[0031] Figure 6 It is a tool library for installing wire thread inserts. DETAILED DESCRIPTION

[0032] Combination Figure 1 The scheme of the present invention is elaborated in detail. A digital installation system for wire thread inserts of aluminum alloy boxes and shell parts of special vehicles mainly includes a protective cover 1, a control system 2, an automatic feeding mechanism 3, a human-computer interaction system 4, a parts placement tool 5, a wire thread insert installation tool library 6, and a tightening mechanism 7.

[0033] The parts placement tool 5, the wire screw insert installation tool library 6, and the tightening mechanism 7 are all placed in the protective cover 1, and the relative positions of the three can meet the robot automatic installation requirements of multiple parts and multiple wire screw inserts.

[0034] The control system 2 is placed under the protective cover 1 to control the implementation of all actions such as wire thread insert loading, replacement of installation tools, installation of wire thread inserts, and process parameter collection and monitoring.

[0035] The automatic feeding mechanism 3 and the human-machine interaction system 4 are placed outside the protective cover 1. The relative position of the automatic feeding mechanism 3 and the protective cover 1 satisfies the automatic feeding of various types of wire screw inserts. The relative position of the human-machine interaction system 4 and the protective cover 1 ensures the convenience of operation for the operator.

[0036] Combination Figure 2 The scheme of the protective cover 1 is described in detail. The protective cover 1 mainly includes a three-color warning light 8, wheels 9, an automatic lifting door 10 and a protective grating 11. The three-color warning light 8 is arranged on the top of the protective cover 1, which is used to respectively prompt the operation, shutdown and failure of the equipment. The wheels 9 are arranged at the four corners of the protective cover 1 for the rapid movement of the automatic installation system of the wire screw insert. The automatic lifting door 10 is arranged in front of the protective cover 1 for loading and unloading of aluminum alloy parts. The protective grating 11 is arranged behind the automatic lifting door 10 for safety protection and is linked with the control system 2 of the automatic installation system of the wire screw insert. When the equipment is in working state, if the operator touches the protective grating, the automatic installation system of the wire screw insert will stop immediately to ensure safe use.

[0037] Combination Figure 3 The scheme of the automatic feeding mechanism 3 is described in detail. The automatic feeding mechanism 3 mainly includes a feeding structure platform 12, a vibration plate 13 and a feeding mechanism 14. The feeding structure platform 12 is placed on the ground and fixed at the four corners with expansion bolts, and is used to place the vibration plate 13 and the feeding mechanism 14; the vibration plate 13 is arranged outside the feeding structure platform 12 to realize the screening, arrangement and feeding of the wire screw sleeves, and the wire screw sleeves with the horizontal handle facing downward, the opening facing upward and the cylinder upright are screened out through vibration, and the wire screw sleeves that do not meet the specification requirements are removed; the feeding mechanism 14 pushes the wire screw sleeves screened out by the vibration screen to the feeding port of the wire screw sleeves, waiting to be grabbed by the special installation tool for the wire screw sleeves.

[0038] Combination Figure 4 The feeding mechanism 14 scheme is described. The feeding mechanism 14 mainly includes a base 15, a cylinder 16, a cylinder 2 17, a feeder 18, a feeder 2 19, a wire screw sleeve guide rail 20, and a wire screw sleeve guide rail 21. The base 15 is arranged below the feeding mechanism 14 and fixed to the feeding structure platform 12 by bolts; the cylinder 16 and the cylinder 2 17 are arranged vertically to provide power for the feeder; the feeder 18 is coaxial with the cylinder 16, the feeder 2 19 is coaxial with the cylinder 2 17, and the feeder 18 and the feeder 2 19 are arranged vertically, and the feeder 18 and the feeder 2 19 are both arranged in the wire screw sleeve guide rail 1 20; the wire screw sleeve guide rail 21 connects the vibration plate 13 and the wire screw sleeve guide rail 1 20 to ensure that the wire screw sleeve selected by the vibration plate 13 is sent to the wire screw sleeve guide rail 20 of the feeding mechanism 14.

[0039] Combination Figure 5The tightening mechanism 7 scheme is described. The tightening mechanism 7 mainly includes an industrial camera 22, a tightening rod 23, and a tightening shaft 25. The industrial camera 22 is arranged at the bottom of the tightening mechanism 7 to take pictures of the surface of the part after the wire screw sleeve is installed, which is used to determine the quality of the installation surface and trace the quality; the tightening rod 23 and the tightening shaft 25 are arranged on the same axis; the wire screw sleeve installation tool 24 is used to place the wire screw sleeve, and the tightening rod 23 and the tightening shaft 25 are connected together to achieve linkage; when the tightening shaft 25 works, it drives the tightening rod 23 to rotate, and then drives the wire screw sleeve to rotate to complete the installation of the wire screw sleeve. The tightening shaft 25 is equipped with a displacement sensor and a torque sensor. When the tightening mechanism moves to the automatic feeding mechanism 3, the automatic feeding mechanism 3 pushes the wire screw sleeve into the wire screw sleeve installation tool 24, and the tightening mechanism 7 moves to the part above the threaded hole of the part placement tooling table. The tightening mechanism 7 rotates to install the wire screw sleeve into the threaded hole, and the displacement sensor and torque sensor obtain displacement and torque data in real time. The sensor plays two roles. One is to obtain the installation parameters of the wire thread insert and provide a data basis for the optimization of process parameters. The other is to monitor the installation parameters in real time during the installation of the wire thread insert and issue an alarm when an abnormality occurs, thereby strengthening the control of the wire thread insert installation process.

[0040] Combination Figure 6 The wire screw insert installation tool library 6 scheme is described. The wire screw insert installation tool library 6 mainly includes a tool placement platform 26, a wire screw insert installation tool 24, and a sensor 27. The tool placement platform 26 is at the bottom of the wire screw insert installation tool library 6, and is used to place the wire screw insert installation tool 24; the sensor 27 is used to detect whether the wire screw insert installation tool 24 is in place. The wire screw insert installation tool library 6 places multiple sets of wire screw insert installation tools according to the type of wire screw insert of the aluminum alloy part to be installed with the wire screw insert, so as to increase the flexibility of the wire screw insert automatic installation system and improve the equipment utilization rate.

[0041] Control system 2 mainly realizes data storage, signal processing and real-time monitoring of process parameters. It performs real-time monitoring of process parameters such as torque, depth and number of turns. If the process parameters exceed the process parameters specified in the process, the control system will alarm and send a stop signal. The wire thread sleeve installation system will shut down and manual inspection will be carried out. Photos, torque, depth, number of turns, robot programs, alarm information, etc. will be stored centrally.

[0042] The human-machine interaction system 4 is equipped with a host and a display screen. The control system 2 is installed in the host. The display screen displays alarm information, operation prompt information, process parameters, etc. in real time to realize visualization of process parameter monitoring.

[0043] The parts placement tooling 5 is configured with multiple sets of tooling as needed to meet the fixation of different types of aluminum alloy parts, increase the flexibility of the wire screw insert automatic installation system, and improve equipment utilization.

[0044] The automatic installation method of the wire thread insert of the wire thread insert automatic installation system is described:

[0045] By installing a large number of wire thread inserts, process parameters such as torque, depth and number of turns are collected, recorded and centrally stored, and a one-to-one correspondence is established between each set of process parameters and the installation quality of the wire thread insert. Among a large number of process parameters, the optimal process parameters are selected as the process parameters for the installation of the wire thread insert to complete the process parameter optimization.

[0046] 1) After the automatic installation system is started, the automatic lifting door 10 is started through the touch control of the human-machine interaction system 4, and the automatic lifting door 10 is automatically raised; the protective grating 11 is stopped through the touch screen of the human-machine interaction system 4, and the protective grating 11 stops working; the operator clamps the parts to be installed with the wire screw sleeve on the parts placement tooling 5, and pours the wire screw sleeve into the vibration plate 13 of the automatic feeding mechanism 3; the automatic lifting door 10 is closed through the touch screen of the human-machine interaction system 4, and the automatic lifting door 10 is automatically closed; the protective grating 11 is controlled to work through the touch screen of the human-machine interaction system 4, and the protective grating 11 starts working. At this point, the preparations before the wire screw sleeve is pressed are completed.

[0047] 2) Select the type of wire screw insert parts to be installed, control the installation of the wire screw insert through the touch screen of the human-computer interaction system 4, and the automatic feeding mechanism 14 starts to work. The wire screw insert with a fixed position posture is screened out through the vibration of the vibration disk 13 and sent to the wire screw insert guide rail 2 21 of the feeding mechanism 7. After a plurality of wire screw inserts that meet the position requirements are filled in the wire screw insert guide rail 21, the cylinder 2 17 and the feeder 2 19 are linked, and the cylinder 1 16 and the feeder 1 18 are linked to push the wire screw insert to move horizontally and vertically along the guide rail in the wire screw insert guide rail 1 20. At this point, the wire screw insert with a fixed position is transported to the wire screw insert waiting position by the automatic feeding mechanism 14, waiting to be grabbed by the tightening mechanism 7.

[0048] 3) A tightening mechanism 7 is installed at the end of the 6-axis robot. The 6-axis robot receives a signal from the control system 2. The end of the robot moves with the tightening mechanism 7 to the wire screw sleeve installation tool library 6, and the wire screw sleeve installation tool 24 is assembled into the tightening mechanism 7 through an electromagnetic device. The end of the 6-axis robot moves with the tightening mechanism 7 to the wire screw sleeve to be grasped position. The wire screw sleeve is pushed into the wire screw sleeve installation tool 24 by the feeder 2 19 of the automatic feeding mechanism 3. The wire screw sleeve installation tool 24 pushes the tightening rod 23 (with a slot at the end) into the inner hole of the wire screw sleeve. The slot of the wire screw sleeve matches the slot of the tightening rod 23 to ensure that the wire screw sleeve rotates with the tightening rod 23; the end of the robot moves with the tightening mechanism 7 to the top of the threaded hole of the wire screw sleeve part to be installed, and the tightening shaft 23 starts to rotate, driving the wire screw sleeve to rotate, and the installation of the wire screw sleeve is completed. During the installation process, the torque and displacement sensors on the tightening shaft 23 collect torque and displacement data in real time. The relevant data are displayed in real time on the screen of the human-computer interaction system 4 and stored in the control system 2. The data is displayed by clicking on the screen of the human-computer interaction system 4.

[0049] 4) Repeat the above steps 2) and 3) to complete the installation of all the wire screw sleeves on one side of the part, the robot moves the tightening mechanism 7 to the initial position, controls the automatic lifting door 10 to start through the touch screen of the human-computer interaction system 4, and the automatic lifting door rises automatically, and controls the protective grating 11 to stop through the touch screen of the human-computer interaction system 4, and the protective grating 11 stops working; the operator replaces the installation surface of the wire screw sleeve of the part, and repeats steps 2) and 3) until the installation of all the wire screw sleeves of the part is completed.

[0050] Key points of the present invention

[0051] (1) The installation quality of the wire thread insert is guaranteed. Before the automatic installation of the wire thread insert, the process parameters are optimized and solidified through data accumulation, forming executable, monitorable and judgeable process parameters, which provide executable means and methods for the control and monitoring of the installation quality; the automated method is used to install the wire thread insert, which has more reliable stability compared with manual installation, ensuring the consistency of the installation of the wire thread insert; the digital process parameter monitoring quality detection method is used to monitor and warn abnormal process parameters in real time, and to perform early processing and intervention during the installation of the wire thread insert. The above multiple methods are integrated and applied to ensure the installation quality of the wire thread insert.

[0052] (2) The installation efficiency of wire thread inserts is improved. The method proposed in the present invention avoids quality problems and hidden dangers that may exist in the manual installation of wire thread inserts, effectively avoids the time waste caused by rework of wire thread inserts, thereby improving the installation efficiency and accumulating a large amount of process parameters and quality data, which lays a foundation for the subsequent optimization of process parameters and efficiency improvement of automatic installation of wire thread inserts, and also broadens the application scope of automation technology to solve uncertain manufacturing problems.

[0053] (3) The flexibility problem of installing multiple parts and multiple types of wire screw inserts is solved. The flexibility problem is solved by configuring multiple tools and multiple automatic feeding mechanisms for wire screw inserts. The example of the present invention meets the automatic installation of two types of parts and four types of wire screw inserts. According to actual needs, multiple tools and multiple automatic feeding mechanisms can be set to meet production capacity and flexibility requirements.

Claims

1. A wire thread insert digital installation system, characterized in that: It includes a protective cover 1, a control system 2, an automatic feeding mechanism 3, a human-machine interaction system 4, a parts placement tool 5, a wire screw sleeve installation tool library 6, and a tightening mechanism 7; The parts placement tool 5, the wire screw insert installation tool library 6, and the tightening mechanism 7 are all placed in the protective cover 1; The control system 2 is placed under the protective cover 1 to control the feeding of the wire screw insert, replacement of the installation tool, installation of the wire screw insert, collection and monitoring of process parameters, etc. The automatic feeding mechanism 3 and the human-machine interaction system 4 are placed outside the protective cover 1. The relative position of the automatic feeding mechanism 3 and the protective cover 1 satisfies the automatic feeding of various types of wire screw inserts. The relative position of the human-machine interaction system 4 and the protective cover 1 ensures the convenience of operation for the operator.

2. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The protective cover 1 includes a three-color warning light 8, wheels 9, an automatic lifting door 10 and a protective grating 11. The three-color warning light 8 is arranged on the top of the protective cover 1, which is used to respectively prompt the operation, shutdown and failure of the equipment. The wheels 9 are arranged at the four corners of the protective cover 1 for the rapid movement of the automatic installation system of the wire screw insert. The automatic lifting door 10 is arranged in front of the protective cover 1 for loading and unloading of aluminum alloy parts. The protective grating 11 is arranged behind the automatic lifting door 10 for safety protection and is linked with the control system 2 of the automatic installation system of the wire screw insert. When the equipment is in working state, if the operator touches the protective grating, the automatic installation system of the wire screw insert will stop immediately to ensure safe use.

3. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The automatic feeding mechanism 3 includes a feeding structure platform 12, a vibrating plate 13 and a feeding mechanism 14; the feeding structure platform 12 is placed on the ground and fixed at four corners with expansion bolts, and is used to place the vibrating plate 13 and the feeding mechanism 14; the vibrating plate 13 is arranged outside the feeding structure platform 12 to realize the screening, arrangement and feeding of the wire screw sleeves, and the wire screw sleeves with the horizontal handle facing downward, the opening facing upward and the cylinder upright are screened out by vibration, and the wire screw sleeves that do not meet the specification requirements are removed; the feeding mechanism 14 pushes the wire screw sleeves screened out by the vibrating material screen to the feeding port of the wire screw sleeve, waiting to be grabbed by the special installation tool for the wire screw sleeve.

4. A wire thread insert digital installation system as claimed in claim 3, characterized in that: The feeding mechanism 14 includes a base 15, a cylinder 16, a cylinder 2 17, a feeder 18, a feeder 2 19, a wire screw sleeve guide rail 1 20, and a wire screw sleeve guide rail 2 21; the base 15 is arranged below the feeding mechanism 14 and fixed to the feeding structure platform 12 by bolts; the cylinder 16 and the cylinder 2 17 are arranged vertically to provide power for the feeder; the feeder 18 is coaxial with the cylinder 16, the feeder 2 19 is coaxial with the cylinder 2 17, and the feeder 18 and the feeder 2 19 are arranged vertically, and the feeder 18 and the feeder 2 19 are both arranged in the wire screw sleeve guide rail 1 20; the wire screw sleeve guide rail 21 connects the vibration disk 13 and the wire screw sleeve guide rail 1 20 to ensure that the wire screw sleeve selected by the vibration disk 13 is sent to the wire screw sleeve guide rail 1 20 of the feeding mechanism 14.

5. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The tightening mechanism 7 includes an industrial camera 22, a tightening rod 23, and a tightening shaft 25; the industrial camera 22 is arranged at the lower end of the tightening mechanism 7 to take pictures of the surface of the part after the wire screw sleeve is installed, which is used for judging the installation surface quality and quality tracing; the tightening rod 23 and the tightening shaft 25 are arranged on the same axis; the tightening rod 23 and the tightening shaft 25 are connected together to achieve linkage; when the tightening shaft 25 is working, it drives the tightening rod 23 to rotate, and then drives the wire screw sleeve to rotate to complete the installation of the wire screw sleeve; the tightening shaft 25 is equipped with a displacement sensor and a torque sensor, when the tightening mechanism moves to the automatic feeding mechanism 3, the automatic feeding mechanism 3 pushes the wire screw sleeve into the wire screw sleeve installation tooling 24, and the tightening mechanism 7 moves to above the threaded hole of the part at the part placement tooling table; the tightening mechanism 7 rotates to install the wire screw sleeve into the threaded hole, and the displacement sensor and the torque sensor obtain displacement and torque data in real time.

6. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The wire screw insert installation tool library 6 includes a tool placement platform 26, a wire screw insert installation tool 24, and a sensor 27; the tool placement platform 26 is at the bottom of the wire screw insert installation tool library 6, and is used to place the wire screw insert installation tool 24; the sensor 27 is used to detect whether the wire screw insert installation tool 24 is in place; the wire screw insert installation tool library 6 places multiple sets of wire screw insert installation tools according to the type of wire screw inserts of the aluminum alloy parts to be installed with the wire screw inserts, thereby increasing the flexibility of the wire screw insert automatic installation system and improving equipment utilization.

7. A wire thread insert digital installation system as claimed in claim 1, characterized in that: Control system 2 mainly realizes data storage, signal processing and real-time monitoring of process parameters. It performs real-time monitoring of process parameters such as torque, depth and number of turns. If the process parameters exceed the process parameters specified in the process, the control system will alarm and send a stop signal. The wire thread sleeve installation system will shut down and manual inspection will be carried out. Photos, torque, depth, number of turns, robot programs, alarm information, etc. will be stored centrally.

8. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The human-machine interaction system 4 is equipped with a host and a display screen. The control system 2 is installed in the host. The display screen displays alarm information, operation prompt information, process parameters, etc. in real time to realize visualization of process parameter monitoring.

9. A wire thread insert digital installation system as claimed in claim 1, characterized in that: The parts placement tooling 5 is configured with multiple sets of tooling as needed to meet the fixation of different types of aluminum alloy parts, increase the flexibility of the wire screw insert automatic installation system, and improve equipment utilization.

10. A method for digital installation of a wire thread insert using the digital installation system according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) After the automatic installation system is started, the automatic lifting door 10 is started through the touch screen of the human-machine interaction system 4, and the automatic lifting door 10 is automatically raised; the protective grating 11 is stopped through the touch screen of the human-machine interaction system 4, and the protective grating 11 stops working; the operator clamps the parts to be installed with the wire screw sleeve on the parts placement tooling 5, and pours the wire screw sleeve into the vibration plate 13 of the automatic feeding mechanism 3; the automatic lifting door 10 is closed through the touch screen of the human-machine interaction system 4, and the automatic lifting door 10 is automatically closed; the protective grating 11 is controlled to work through the touch screen of the human-machine interaction system 4, and the protective grating 11 starts working, so far, the preparation work before the wire screw sleeve is pressed is completed; 2) Select the type of wire screw insert parts to be installed, control the installation of the wire screw insert through the touch screen of the human-machine interaction system 4, and the automatic feeding mechanism 14 starts to work. The wire screw insert with a fixed posture is screened out through the vibration of the vibration disk 13 and sent to the wire screw insert guide rail 2 21 of the feeding mechanism 7. After a plurality of wire screw inserts that meet the posture requirements are filled in the wire screw insert guide rail 21, the cylinder 2 17 and the feeder 2 19 are linked, and the cylinder 1 16 and the feeder 1 18 are linked to push the wire screw insert to move horizontally and vertically along the guide rail in the wire screw insert guide rail 1 20. At this point, the wire screw insert with a fixed posture is transported to the wire screw insert to be grasped position by the automatic feeding mechanism 14, waiting to be grasped by the tightening mechanism 7; 3) A tightening mechanism 7 is installed at the end of the 6-axis robot. The 6-axis robot receives a signal from the control system 2. The end of the robot moves with the tightening mechanism 7 to the wire screw insert installation tool library 6. The wire screw insert installation tool 24 is assembled into the tightening mechanism 7 through an electromagnetic device. The end of the 6-axis robot moves with the tightening mechanism 7 to the position where the wire screw insert is to be grasped. The wire screw insert is pushed into the wire screw insert installation tool 24 by the feeder 2 19 of the feeding mechanism 14. The wire screw insert installation tool 24 pushes the tightening rod 23 into the inner hole of the wire screw insert. The wire screw insert handle cooperates with the screw groove of the tightening rod 23 to ensure that the wire screw insert rotates with the tightening rod 23; the end of the robot moves with the tightening mechanism 7 to the top of the threaded hole of the wire screw insert part to be installed, and the tightening shaft 23 starts to rotate, driving the wire screw insert to rotate, and the installation of the wire screw insert is completed; 4) Repeat the above steps 2) and 3) to complete the installation of all the wire screw sleeves on one side of the part, the robot moves the tightening mechanism 7 to the initial position, controls the automatic lifting door 10 to start through the touch screen of the human-computer interaction system 4, and the automatic lifting door rises automatically, and controls the protective grating 11 to stop through the touch screen of the human-computer interaction system 4, and the protective grating 11 stops working; the operator replaces the installation surface of the wire screw sleeve of the part, and repeats steps 2) and 3) until the installation of all the wire screw sleeves of the part is completed.

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