自动线箱体工件翻转机设计

Automatic line box workpiece turnover device designAbstract：The use of gear motor or hydraulic drive unit dumpers, flip flip machine driven piece uniform. The machine includes a base body and flip by flip hinged, flip machine by flipping hinge and dock connector, the machine features a flip in the middle of the rubber roller, rubber to form a connection with the base frame, the goods quickly and easily at any angle flip, or attached to the conveyor line, multi-speed control, and limit switch, flip the goods at any angle after the move to the next line; to achieve three-dimensional flow of goods transported, without artificial line hanging high delivery rate and characteristics, dumpers simple structure, low cost, high efficiency, safety and reliability. Flip function to adapt to different specifications of the cargo flip requirements, safety, stable and effective delivery of technology delivery, to achieve the type of goods by a horizontal or vertical set up conversion converts horizontal objectives of the job. Widely used in metallurgy, stamping, sheet metal, mold, paper, refrigeration, strip, coil, barrel materials, roll and other industries.Keywords: multi-speed control automatically flip hydraulic drive safely and efficientlyIntroduction: The development of professional dumpers led to the development baler, wrapping machine and other packaging industry, the development of flipping machine industry, in conjunction with the actual existing industry infrastructure, strengthen the "three linked", is to flip the machine and manufacturing high-end associated development to high-efficiency industries. Flip the machine as a new member of the packaging industry, able to adapt to the requirements of different specifications flip goods to achieve the horizontal or the vertical type conversion founded convert Flip Horizontal machine operation targets. Before the outbreak of the economic crisis, the Chinese government initiative to adjust the original catalyst for economic development model, dumpers important role in the manufacturing of machine tools, will flip the machine and the processing of products and associated sustainable development policy, the coverage by the packaging industry and the enormous production, prompting China's machinery industry sustainable growth of economic growth from relying on investment and exports to consumption, service-oriented and emerging industries shift, flip machine to break through the existing production possibility frontier, the formation of endogenous long. Flip the machine can be divided into 90 ° dumpers, 180 ° flip the machine according to the maximum flip angle. According to the performance of its implementation can be divided into coils flipped machine, mold flip machines, sheet metal tubs. Flipcoil coils hanging heavy machine implementation will put the V-face flip machine by 0 ~ 90 ° flip, realize the flat coil placed on the tray. Flip machine mold, in maintenance large, medium-sized molds, mold flip achieve 0 ~ 90 °, convenient, energy, safe opening and closing of the mold and lifting. Stamping plant is indispensable auxiliary equipment, the ideal equipment is large mold repair. Flip Plate machine is special equipment for the automotive industry, for large sheet pile material flip, is stamping automated production lines necessary auxiliary equipment, not only can reduce the sheet surface scratches, improve product quality, while reducing the labor intensity of the operator improve production efficiency. For some special goods, if the original manual method flip, may be unexpected dangers, causing damage to the workpiece; endanger the personal safety of operating personnel; damage to the lifting equipment. The main features of such equipment is reflected in the product maturity structure, does not appear maintenance accident.Design program: To achieve the level of 90 ° rotation dumpers, our most common way is to transport power through the motor, and then implement the rotation by other functions, such as gears, rack drive, belt drive, chain drive and other institutions. But also can be used hydraulic or pneumatic drive to achieve, the design of hydraulic and pneumatic design is also often used in modern design.Flip machine level when the speed of rotation required is very small, the transmission process to be smooth, for the tipper mechanism is simple and reliable, high precision drive, belt drive and chain drive are not well meet the design requirements, if using hydraulic or Pneumatic drive way to completion, the need for additional facilities, such as air compressors, etc., because the automatic line, space is very limited, each part of the workspace to be as small as possible, to use the structure of the smaller, the smaller the better other accessories using hydraulic or pneumatic also adds extra work is often maintained, so the selection of the motor and gear drive way. In the gear transmission, in order to smoothly carry out a horizontal rotation, the gear speed needs to be very low to meet the requirements, and the selected motor to consider the cost and other reasons, are generally selected from the conventional electric motor, the speed will be relatively large , they need to complete reducer deceleration, in order to facilitate the design of simple structure, reference designs similar products, we can choose to complete the power transmission gear, last accomplished by first class gear speed control, so as to reduce flip the machine structure, gear is also a standard mechanical, not leaving because of the increased speed reducer structure increases. Conveyor height H is determined according to the technical requirements of transport (such as materials processing equipment line system entrance height, assembly, testing, loading and unloading zone personnel operating position, etc.), and generally H = 500 ~ 800㎜ ornot to set up the legs, so that the rack directly fixed to aerodromes. According to the foregoing overall design of the machine the machine height H = 800㎜ selected.Conveying speed：Conveyor roller conveyor speed v is determined according to the production process and transportation methods. In general, non-powered roller conveyor type advisable v = 0.2 ~ 0.4m / s, the power-type roller conveyor advisable v = 0.25 ~ 0.5m / s, whichever is greater, and as far as possible, in order to meet the throughput requirements at the same under the premise of the article distribution larger interval, thereby improving the forces rack. When the process is strictly limited to the transport speed, the conveying speed of technological requirements should be selected, but the non-powered roller conveyor type of not more than 0.5m / s, a powered roller conveyor should be less than 1.5m / s, in which the chain drive roller conveyor not more than 0.5m / s.Taking into account the reversal of the job requirements, according to GB / T7012-2008 here take 0.32m / s.Control Design：Reversing machine control section There are many control methods can be used, calculated according to the reversing machine design requirements and design related content found in front of the control section of the machine is very simple, the main control section is horizontal rotary gear positive, reverse unidirectional movement of the moving conveyor, the conveying section of the motor, in order to be considered here may be a multi-purpose rotary machine, so can be used in other work station, can be designed to form a two-way transport, which are two major sporting control member. On the other hand the control is to control the action sequence and operating time, the use of flip machine can continuously work properly. Control of these two aspects in the field of professional control is a very basic control mode, if you are using a PLC or SCM control, would be overkill, so that the main function of these components can not play out, thus wasting valuable resources, but also increased the attachment, making it more complicated, so use common electrical components directly controls is a more reasonable way.In the front part of the design of the selected gear is a very fast start and brake motors, only a few tenths of time to complete the related actions, we only need to open and close the power to achieve start the motor, stop and positive, reverse action, flipping machine during rotation speed is very small, so the position error by starting and braking time will be brought about by a very small, considering the above factors, it is generally limited to the selection switch to complete the task.Flip machine action sequence is an important part of it is based on a dynamic part of the control set again, it should be where and when the motor control where and at what time is composed of automatic rollover machine The last step in the process of flipping Positioning action in relatively high precision, but in front of this issue has been resolved,consider the purpose of the design, there is no precision in the time sequence of the action, just need the order is accurate, therefore, consider using Infrared sensor housing transported detection signal of the sensor can be completed in accordance with the operation sequence of the control.Limit Switch：Limit switches, the machine is a signal into an electric signal to control the position or stroke of the moving part of the automatic electrical control. Is a commonly used small electrical current master.Principle: The use of production machinery moving parts make contact action to achieve a collision or breaking the limit switch A control circuit to achieve a certain control purposes. Typically, this type of switch is used to limit the mechanical movement of the position or stroke, according to a certain position so that the mechanical movement or stroke automatic stop, reverse movement, shifting back and forth movement or automatic sports.Role: In the electrical control systems, the position switch is to achieve sequential control, positioning control and position detection status. Machinery and equipment used to control and limit travel protection.Structure: the operating head, contact system and the shell components.Category: one for direct contact with mechanical travel drive, as the input signal limit switch and micro switch; the other for electromagnetic signals (non-contact) as the input signal of the proximity switch action.Direct operated limit switch: the same principle of operation is similar to the button, the difference is: one is manual and the other hit the block from the moving parts of the collision. When hit the block touch push button on the outside of moving parts make contact action, when the moving parts left in the spring action, the contact is automatically reset.Rolling limit switch:When motion machine iron block (hit the block) is pressed to the limit switch rollers, drive shaft rotates together with the bar together, hit the block cam push, hit the block when bumping into a certain position, push fretting switch fast action. When iron block away on the wheel, the return spring causes the limit switch reset. This is a single round of automatic recovery limit switch. The wheel rotary limit switch does not automatically recover, it is relying on mechanical reverse movement during exercise, stop iron wheel to recover another collision.Photoelectric Sensors：Photoelectric detection method with high precision, fast response, non-contact, etc., and can be measured many parameters, simple structure of the sensor, flexible and diverse forms, therefore, photoelectric sensors to detect and control applications in a very wide range.Photosensor is a key element in a variety of optoelectronic detection systems of photoelectric conversion, it is the light signal (infrared, visible and ultraviolet radiation) transformed into electrical devices.Composition:photosensor In general, there are three parts, they are divided into: a transmitter, receiver and detection circuitry.The transmitter emits a light beam at the target, the beam emitted from the semiconductor light source in general, a light emitting diode (LED) and laser diodes. Beam continuously emitted, or changing the pulse width. The receiver has a photodiode or phototransistor composition. In front of the receiver, provided with an optical element such as lens, and iris. Behind it is detecting circuit, which can effectively filter out signal and apply this signal.References：[1] Ma Hongtao, Wang Xiaojun, Zhou FenPing,"Measuring and controllingof analog signal based on high-speed I/O port of PLC," 2009International Conference on Measuring Technology and MechatronicsAutomation, vol.3, pp.393-395,2009.[2] He Yuyao, Zhang Yang, Yan Maode, Chen Tianqin,"Design and realization of motor test-control system based on USS protocol," ElectricPower Automation Equipment,vol.26, n4, pp.63-66,2006.[3] Yang Zhigang, Zheng Xuelan more driven wheel chain drive design. [J]. 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