New energy vehicle production line chassis and primary interior assembly line technical requirements
Automotive automation production line manufacturers to explain to you the new energy vehicle production line chassis and a second interior assembly line technical requirements:
The main material of chassis and secondary interior assembly line is steel structural parts, which are assembled in the form of combination assembly. It is mainly composed of XT-100 hanging conveyor line body, driving tensioning mechanism, tooling trolley lifting gear, body on-line lift, pneumatic mechanism of tooling trolley opening and closing, unpowered rail lifting trolley, roof hanger structure, electrical control system, etc. The running mode of the line body can be either continuous running with the conveyor chain and the lifting tool of the tool car or beat running (0-999 seconds adjustable).
1.2 The assembly line is mainly used for the assembly of electric vehicle chassis and primary interior decoration. The main body of the hoisting tool trolley is welded by 100x100x4.0mm and 50x100x4.0mm square pipes. It is required to ensure that no obvious deformation occurs during the bearing process. The trolley boom beam is made of P68x5mm seamless steel tube, and both ends are equipped with UCP209 bearings to realize the opening and closing of the boom. A total of 14 trolley slings are equipped on the whole line, and the total weight of the body is about 1000Kg.
1.3 The total length of the assembly line is about 81.2m(including driving mechanism and tightening mechanism).
1.4 The total width of the single side shape of the line body is 5000mm, and the total width is 12000mm. The height of the line body is set according to the process requirements. The process height of the high station is 1550-1600mm, and the process height of the low station is 450-500mm.
1.5 There are 14 trolley slings in the whole line, among which there are about 8 effective stations, and the distance between trolley slings is 5400mm.
1.6 The conveyor chain adopts XT-100 traction chain. In order to reduce friction coefficient and prevent crawling phenomenon, rolling bearings are installed in the roller of the chain; The chain is manufactured in accordance with GB8350-87 standard, and the bearing life ensures that the plate chain can work for no less than 30,000 hours.
1.7 set of driving mechanism, 2.2KW motor with 74# double stage cycloid reducer; Motor matching is reasonable to ensure that the assembly line runs continuously for 24 hours and the temperature rise of the motor is within the standard range.
1.8 After the motor is slowed down by the reducer, the trolley spreader can reach the normal operation speed of 1m/min. At this speed, ensure that the motor works at rated speed and rated power; Assembly line wiring body frequency conversion governor - set, frequency conversion governor adopts Japanese Mitsubishi brand; Fine-tune the motor by frequency conversion governor, so that the line speed can be adjusted between V=0.4-1.6m/min (commonly 1m/min). The motor power selected is 2.2KW, which can be used only after Party A's confirmation.
1.9 Tensioning mechanism adopts sliding bearing seat to support the tensioning shaft. The lead rod with trapezoidal thread is tensioning, and the tensioning device is adjustable from 0-150mm.
1.10 The driving tensioning frame shall be welded with section steel, and the skeleton shall have sufficient strength and stiffness.
1.11 Line body mounting bracket: the column is welded with 120*120*3mm square pipe, the beam is 16# GB I-beam, and the auxiliary bracket is welded with 40*80*2.0mm square pipe; The spacing between column installation is 5400mm.
1.12 Configuration for each assembly station: 2 40W double-tube grille lights, 1 industrial shaking head fan, 1.5-inch galvanized air pipe with 1 double-end quick plug, aluminum alloy slide rail profiles with 2 four-wheel trolley hook, 1 set of 220V/380V socket.
1.13 A pneumatic lifting platform shall be set at the line of the car body. According to the needs of the production process, the lifting platform shall be installed in the pit type. Party A shall prepare the ground resistance foundation of the line body in advance according to the ground resistance drawings provided by Party B; After the wire body is installed, both sides of the pit are sealed with 3mm thick decorative steel plate, and 30*40*1.75mm square pipe is used as the support frame under the decorative steel plate to increase the bearing capacity of the sealing plate. The decorative steel plate is sealed with movable cover plate for future cleaning and maintenance.
1.14 At the lower line of the car body, each set of pneumatic lifting mechanism is used for opening and closing the lifting gear of the tool car.
1.15 Set up two lifts at the bottom of the body (left and right sides of the line end of the plate chain line), and transfer the workpieces on the lifting gear of the hanging tool trolley to the plate chain line for secondary interior assembly.
1.16 The assembly line runs smoothly, no obvious crawling phenomenon occurs: the chain and sprocket teeth are stable, no noise and stuck phenomenon: the motor current is within the rated range, the motor temperature rise is within the standard range: the reducer and bearings have no abnormal temperature rise.
1.17 Electrical control technical requirements: The electrical control system design of the assembly line shall meet the technological requirements, and fully consider the reliability, safety and convenience of management of the system. Its specific requirements are as follows:
1.18.1 The general console is located at the driving end, and the whole line is equipped with five button boxes arranged evenly. The button box is equipped with two buttons, emergency stop and help.
1.18.2 Motor overload protection is required.
1.18.3 For the convenience of debugging and maintenance, the motor should be able to reverse for a short time at no load.
1.18.4 The emergency stop button is interlocked with the motor. Press the release button to start after troubleshooting.
1.18.5 The assembly line shall be prompted by sound and light signals before starting operation, and start after a delay of 10 seconds.
1.18.6 Photoelectric control switch is set at the bottom end of the body. If the body is not lifted to the end of the assembly line, the line will stop running automatically.
1.18.7 The normal running speed of the line body is 1 m/min. The motor can be adjusted from 0.4 to 1.6m/min by adjusting the motor through the frequency converter. The acceleration and deceleration can be adjusted.
1.18.8 Electrical components are made of Omron photoelectric switch, Chint AC contactor, Mitsubishi frequency conversion governor, circuit breaker, power switch, indicator light and start button are made of Wenzhou Chint products.
1.18.9 All electrical control cabinets shall be designed, manufactured and installed in accordance with the safety standards of electrical technology.
1.19 Surface paint of steel structure parts: the color of wire body and electric control cabinet is ice gray (GY09), and the color of plate chain is dark yellow (Y08).
