Automatic box pushing control system

Abstract

The invention discloses an automatic box pushing control system. The system comprises a mechanical structure part; a motor execution part; an electric control part; and a height control part. According to the system, the labor intensity of workers is greatly reduced through the control part, the height control part and the motor execution part, and the production efficiency of overall circulation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic box-pushing control, and in particular to an automatic box-pushing control system. Background Art

[0002] With the expansion of the company's wind power business, different main engine manufacturers develop and design pitch control cabinets of different shapes; different models of the same manufacturer may also have pitch control cabinets of different sizes. In order to ensure that automated operations are compatible with pitch control cabinets of different sizes, the tooling and fixtures of the automated assembly line need to be developed and designed in a targeted manner; because the processes and production operation times of different procedures in the production of control cabinets are not the same, the rhythm of the assembly line workstations needs to be adjusted by ourselves, and the independence is very strong; in order to improve the overall production efficiency and reduce the labor intensity of workers, the assembly line needs to adopt automatic propulsion, variable speed regulation, slow in and fast out to reduce the flow time of the assembly line.

[0003] At present, most of the wind turbine pitch control cabinet production lines are manually pushed and operated in a straight line, and the workstations and processes are relatively fixed. Normally, there are 2 to 3 workers at each workstation, and production is carried out side by side on both sides. In this way, workers need to bend over and adjust their posture for a long time during the production process. If the height of the workstation is much different from the height of the worker, it will be more troublesome for the worker to work, which greatly increases the labor intensity of the workers and reduces the overall production efficiency.

[0004] In summary, for the existing wind power variable pitch control cabinet production line, the research and development of an automatic box pushing control system is particularly important. Summary of the invention

[0005] In order to solve the above technical problems, the technical problem to be solved by the present invention is to provide an automatic box pushing control system.

[0006] To achieve the above object, the present invention provides an automatic box pushing control system, comprising:

[0007] Mechanical structure part: The mechanical structure part is composed of the main line roller assembly line, the branch line roller assembly line, the jacking and translation system, and the mobile tooling plate; the main line roller assembly line, the branch line roller assembly line, the jacking and translation system and the mobile tooling plate are installed and operated independently of each other; the main line roller assembly line, the branch line roller assembly line and the jacking and translation system are fixedly connected with the ground bolts as a whole; the main line roller assembly line and the branch line roller assembly line are respectively composed of a fixed metal frame, a roller, and a chain; the jacking and translation system is composed of a jacking and translation system base, a lifting platform, a solenoid valve, a cylinder, a transmission rod, and a chain; the mobile tooling plate is composed of a lower rotating plate, a bearing, an upper rotating plate, a mounting beam, and an adjustable positioning plate; the mobile tooling plate is placed on the assembly line roller and is driven forward by the roller;

[0008] Motor execution part: The motor execution part is composed of a base, a main line transmission motor, a translation transmission motor, and a branch line transmission motor. The base is fixed to the ground below the main line roller assembly line and the branch line roller assembly line by bolts respectively; the main line transmission motor and the branch line transmission motor are fixed to the base by bolts; the translation transmission motor is fixed to the base of the jacking and translation system by bolts; the motor execution part is used to provide power to the entire line and is an actuator that provides forward and backward movement of the workstation; the motor is transmitted to each roller through a chain drive, thereby realizing the operation of the assembly line;

[0009] Electrical control part: The electrical control part can be divided into an electric control part and a pneumatic control part: the electric control part is composed of an air switch, a PLC, a frequency converter, a proximity switch sensor, and a button; the pneumatic control part is composed of a solenoid valve, a cylinder, and a lifting blocker; the proximity switch sensor, button, solenoid valve, cylinder, and lifting blocker are respectively installed on the lower brackets of the main line roller assembly line and the branch line roller assembly line by bolts; the electrical control part controls the motor execution part through the frequency converter; the electrical control part is used to start and stop the assembly line, change the motor speed and direction, and control the displacement of the cylinder to drive the lifting and lowering of the lifting blocker and the mobile tooling plate.

[0010] Height control part: The height control part is composed of a workstation lifting platform and a hydraulic system; the height control part is fixed to the ground by bolts, and the height of the workstation lifting platform is adjusted by the hydraulic system to adapt to different heights.

[0011] Furthermore, the air switch, PLC and frequency converter are installed inside a distribution box near the assembly line.

[0012] Furthermore, one main line roller assembly line is provided.

[0013] Furthermore, fourteen branch roller assembly lines are provided.

[0014] Furthermore, the buttons include a forward button, an emergency stop button, a finish button, and a back button.

[0015] Compared with the prior art, the present invention produces the following beneficial effects: an automatic box-pushing control system of the present invention greatly reduces the labor intensity of workers and improves the overall production efficiency through the control part, the height control part and the motor execution part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a control flow chart of the present invention;

[0017] Figure 2 It is a schematic diagram of the planar structure of the present invention;

[0018] Figure 3 It is a side structural schematic diagram of the present invention;

[0019] Figure 4 It is an enlarged view of point A in the present invention;

[0020] Figure 5 It is a structural schematic diagram of the height control part in the present invention;

[0021] Explanation of the accompanying drawings: 1-main line roller assembly line, 2-branch line roller assembly line, 3-lifting and translation system, 31-lifting and translation system base, 33-lifting platform, 34-cylinder, 35-drive rod, 36-chain, 4-movable tooling plate, 41-lower turn plate, 42-bearing, 43-upper turn plate, 44-mounting beam, 45-adjustable positioning plate, 5-metal frame, 6-roller, 7-chain, 8-base, 9-button, 10-solenoid valve, 11-workstation lifting platform, 12-hydraulic system, 13-distribution box, M01-main line transmission motor, M11-translation transmission motor, M12-branch line transmission motor, X1-end sensor, X0-feeding sensor, V-cylinder, X-sensor. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-5 The specific embodiments of the present invention are further described. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] A preferred embodiment of the present invention provides an automatic box pushing control system, comprising:

[0024] Mechanical structure part: The mechanical structure part is composed of a main line roller assembly line 1, fourteen branch line roller assembly lines 2, a lifting and translation system 3, and a mobile tooling plate 4; the main line roller assembly line 1, the branch line roller assembly line 2, the lifting and translation system 3 and the mobile tooling plate 4 are installed and operated independently of each other; the main line roller assembly line 1, the branch line roller assembly line 2 and the lifting and translation system 3 are integrally fixedly connected with the ground bolts; the main line roller assembly line 1 and the branch line roller assembly line 2 are respectively composed of a fixed metal frame 5, a roller 6, and a chain 7; the lifting and translation system 3 is composed of a lifting and translation system base 31, a lifting platform 33, a solenoid valve 10, a cylinder 34, a transmission rod 35, and a chain 36; the mobile tooling plate 4 is composed of a lower rotating plate 41, a bearing 42, an upper rotating plate 43, a mounting beam 44, and an adjustable positioning plate 45; the mobile tooling plate 4 is placed on the main and branch assembly line rollers and is driven forward by the rollers;

[0025] Motor execution part: The motor execution part is composed of a base 8, a main line transmission motor M01, a translation transmission motor M11, and a branch line transmission motor M12. The base 8 is fixed to the ground below the main line roller assembly line 1 and the branch line roller assembly line 2 by bolts respectively; the main line transmission motor M01 and the branch line transmission motor M12 are fixed to the base 8 by bolts; the translation transmission motor M11 is fixed to the base 8 of the jacking and translation system 3 by bolts; the motor execution part is used to provide power to the entire line and is an actuator that provides forward and backward movement of the workstation; the motor is transmitted to each roller through a chain drive, thereby realizing the operation of the assembly line;

[0026] Electrical control part: The electrical control part can be divided into an electric control part and a pneumatic control part: The electric control part is composed of an air switch, a PLC, a frequency converter, a proximity switch sensor, and a button 9, and the button 9 includes a forward button, an emergency stop button, a completion button, and a backward button; the air switch, PLC, and frequency converter are installed inside a distribution box 13 near the assembly line; the pneumatic control part is composed of a solenoid valve 10, a cylinder, and a lifting blocker; the proximity switch sensor, button, solenoid valve 10, cylinder, and lifting blocker are respectively installed on the lower brackets of the main line roller assembly line 1 and the branch line roller assembly line 2 by bolts; the electrical control part controls the motor execution part through the frequency converter; the electrical control part is used to start and stop the assembly line, change the motor speed and direction, and control the displacement of the cylinder to drive the lifting blocker and the mobile tooling plate 4 to lift and lower.

[0027] Height control part: The height control part is composed of a workstation lifting platform 11 and a hydraulic system 12; the height control part is fixed to the ground by bolts, and the height of the workstation lifting platform 11 is adjusted by the hydraulic system 12 to adapt to different heights.

[0028] The overall system includes one main line and fourteen branch lines; the cabinet is lifted to the loading point of the main line by a front crane or other lifting equipment. At this time, the adjustable positioning plate on the side of the mobile tooling plate 4 is adjusted to adapt to control cabinets of different models and sizes.

[0029] When the completion button of all workstations is pressed, the system will receive the completion instruction, and the PLC will control the solenoid valve 10 of the jacking and translation system 3 to work, and the cylinders V11, V21, V31...Vn1 will be filled with air to lift the jacking and translation system 3 into place. Then the branch line transmission motor M12 and the translation transmission motor M11 will reverse at a uniform speed at the same time. The forward and reverse rotation of these two motors are synchronized, so they are designed to be controlled by the same inverter output. The branch line and translation transmission motor drive the mobile tooling plate 4 to be pushed horizontally from the branch line roller assembly line 2 to the jacking and translation system 3, and trigger the corresponding sensors X11, X21, X31...Xn1 during the journey. When the mobile tooling plate 4 triggers the corresponding sensor, the PLC will control the inverter to reduce the motor output speed to reduce the impact of the mobile tooling plate 4 on the main line due to inertia. When the mobile tooling board 4 completely enters the main line, the corresponding sensors X14, X24, X34...Xn4 installed on one side of the main line are triggered. This sensor is used to determine whether the mobile tooling board 4 has reached its position, so that the PLC controls the frequency converter to stop the branch line and translation drive motor M11. At the same time, the PLC controls the solenoid valve 10 to work, the cylinders V11, V21, V31...Vn1 are deflated, and the lifting and translation system 3 is lowered to be flush with the main line. The above part shows the operation of the mobile tooling board 4 being transported out of the branch line.

[0030] When the lifting and translation systems 3 of all workstations are lowered into place, the main line drive motor M01 rotates forward at a uniform speed. The main line drive motor M01 controls the frequency converter through the PLC to realize the forward and reverse rotation of the motor. During the operation of the main line, the PLC controls the solenoid valve 10 at each branch node to work, the cylinders V12, V22, V32...Vn2 to intake air, and the lifting blocker is lifted. Its function is to prevent the mobile tooling plate 4 from continuing to advance and ensure that it is twisted to the next workstation. When the mobile tooling plate 4 moves into place, the sensors X12, X22, X32...Xn2 are triggered, and the PLC will control the frequency converter to stop the main line drive motor M01 from rotating. Then the PLC controls the solenoid valve 10 of the lifting and translation system 3 to work, and the cylinders V11, V21, V31...Vn1 to intake air, and lift the lifting and translation system 3. A certain delay is set in the control system to ensure that the lifting action is completed in sufficient time. After the lifting and translation system 3 is lifted, the PLC controls the inverter to rotate the branch line and the translation drive motor M11 at a constant speed, thereby pushing the mobile tooling board 4 into the branch line at a constant speed and smoothly, and stops running after the mobile tooling board 4 triggers the sensors X13, X23, X33...Xn3 on the branch line. The above part is the situation of the mobile tooling board 4 being transported from the main line to the branch line.

[0031] After the branch line completes the action of advancing the workstation, the finished product control cabinet on the last workstation will move to the unloading place of the main line. This mobile tooling board 4 triggers the end sensor X1, and the main line drive motor stops running under the control of the inverter. The worker at the unloading place can unload the finished cabinet. After unloading, press the return button, and then the main line drive motor M01 will reverse under the control of the inverter, and send the mobile tooling board 4 to the loading place until the sensor X0 at the main line loading place is triggered and stops running. Then the worker at the loading place will lift the cabinet to be processed onto the mobile tooling board 4. The above part shows the unloading of the finished product control cabinet and the return of the empty mobile tooling board 4.

[0032] The workstation height adjustment in this control system adopts a hydraulic lifting system. Because the hydraulic adjustment is stable and there will be no pneumatic vibration, the adjustment height setting of 0~30CM basically meets the vast majority of working conditions. This hydraulic height adjustment system is independent of the above-mentioned control system, which reduces the impact of interaction and improves overall safety.

[0033] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the whole system adopts synchronous dual speed, slow in and fast out, and controls and debugs the frequency converter of the corresponding workstation through PLC. Workers can also adjust the cabinet position of the variable pitch control cabinet by themselves in manual mode. Each workstation is equipped with forward and backward knobs, and the workstation entry / exit is equipped with sensors to control the position to prevent unreasonable situations such as workers' extreme operations. The emergency stop button can be controlled during the automatic operation of this system (for each workstation) to prevent safety accidents; the cabinet is compatible with tooling customized for multiple models, and no excessive operation is required when switching different cabinets. The cam-type locking structure here is more efficient and has a stronger safety structure than the traditional one, which greatly reduces the time of structure switching.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An automatic box pushing control system, characterized in that: include: Mechanical structure part: The mechanical structure part is composed of the main line roller assembly line, the branch line roller assembly line, the jacking and translation system, and the mobile tooling plate; the main line roller assembly line, the branch line roller assembly line, the jacking and translation system and the mobile tooling plate are installed and operated independently of each other; the main line roller assembly line, the branch line roller assembly line and the jacking and translation system are fixedly connected with the ground bolts as a whole; the main line roller assembly line and the branch line roller assembly line are respectively composed of a fixed metal frame, a roller, and a chain; the jacking and translation system is composed of a jacking and translation system base, a lifting platform, a solenoid valve, a cylinder, a transmission rod, and a chain; the mobile tooling plate is composed of a lower rotating plate, a bearing, an upper rotating plate, a mounting beam, and an adjustable positioning plate; the mobile tooling plate is placed on the assembly line roller and is driven forward by the roller; Motor execution part: The motor execution part is composed of a base, a main line transmission motor, a translation transmission motor, and a branch line transmission motor. The base is fixed to the ground below the main line drum assembly line and the branch line drum assembly line by bolts respectively; the main line transmission motor and the branch line transmission motor are fixed to the base by bolts; the translation transmission motor is fixed to the base of the jacking and translation system by bolts; Electrical control part: The electrical control part can be divided into an electric control part and a pneumatic control part: The electric control part is composed of an air switch, a PLC, a frequency converter, a proximity switch sensor, and a button; The pneumatic control part is composed of a solenoid valve, a cylinder, and a lifting blocker; The proximity switch sensor, button, solenoid valve, cylinder, and lifting blocker are respectively installed on the lower bracket of the main line drum assembly line and the branch line drum assembly line by bolts; The electrical control part controls the motor execution part through the frequency converter; Height control part: The height control part is composed of a workstation lifting platform and a hydraulic system; the height control part is fixed to the ground by bolts, and the height of the workstation lifting platform is adjusted by the hydraulic system.

2. The automatic box pushing control system according to claim 1, characterized in that: The air switch, PLC and frequency converter are installed inside the distribution box near the assembly line.

3. The automatic box pushing control system according to claim 1, characterized in that: The main line roller assembly line is provided with one.

4. The automatic box pushing control system according to claim 1, characterized in that: There are fourteen branch roller assembly lines.

5. The automatic box pushing control system according to claim 1, characterized in that: The buttons include a forward button, an emergency stop button, a finish button, and a back button.

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