The appearance of the CNC lathe is similar to that of an ordinary lathe, which consists of the bed, spindle box, tool holder, feed system pressure system, cooling and lubrication system. There is a qualitative difference between the feed system of CNC lathes and ordinary lathes. Conventional lathes have feed boxes and exchange gear racks, while CNC lathes directly use servo motors to drive feed motions by means of ball screws and carriages. The structure of the feed system is greatly simplified. There are many kinds of CNC lathes with different specifications, which can be classified as follows. 1. Sort by lathe spindle position 1) Horizontal CNC lathes Horizontal CNC lathes are divided into horizontal horizontal guide rail horizontal lathes and CNC tilt horizontal rail horizontal lathes. Its inclined guide structure makes the lathe more rigid and easy to remove chips. Horizontal CNC Lathe 2) Vertical CNC lathes Vertical CNC lathes are referred to as CNC vertical lathes. The spindle of the lathe is perpendicular to the horizontal plane. A circular table with a large diameter is used to clamp workpieces. This kind of machine is mainly used for machining large-scale complex parts with large radial dimensions and relatively small axial dimensions. Vertical CNC lathe 2. According to the number of knife holders 1) Single-spindle CNC lathe CNC lathes are generally equipped with various forms of single-spindles, such as four-station horizontal dynamic indexing tool post or multi-station turret type automatic indexing tool post. Single-spindle CNC lathe 2) Double-turret CNC lathes The double-turret configuration of these lathes is parallel and can be distributed vertically. Double knife CNC lathe 3. Classified by function 1) Economic CNC Lathe The simple CNC lathes formed by retrofitting the feed system of the ordinary lathe using a stepping motor and a single-chip machine have a low cost, but the degree of automation and functions are relatively poor, and the turning machining accuracy is not high, and it is suitable for use in low-speed rotations. Turning of parts. Economic CNC lathe 2) CNC lathes are specially designed on the basis of turning processing requirements and are equipped with a general-purpose numerical control system to form a numerically controlled lathe. The functions of the numerical control system are strong, and the degree of automation and machining accuracy are relatively high. It is applicable to the turning of general rotary parts. This CNC lathe can control two axes simultaneously, X-axis and Z-axis. General CNC lathe 3) The turning machining center adds the C axis and the power head on the basis of the ordinary numerical control lathe, the more advanced numerically controlled lathe has the tool magazine, may control X, Z and C three coordinate axes, the linkage control axis may be (X , Z), (X, C) or (Z, C). Thanks to the addition of C-axis and milling power heads, the machining capabilities of this CNC lathe are greatly enhanced. In addition to general turning, radial and axial milling, surface milling, holes with centerline not in the center of the part turning, and radial holes can be performed. Drilling and other processing. Turning machining center internal schematic Compared with traditional lathes, the structure of CNC lathes has the following features: 1) Because the two-direction movement of the CNC lathe tool holder is driven by two servo motors respectively, its transmission chain is short. It is not necessary to use transmission parts such as hanging wheels and light bars, and the servo motor is directly connected with the screw to drive the tool holder. Servo motor screw can also be connected with timing belt or gear pair. 2) The multi-function CNC lathe uses a DC or AC spindle control unit to drive the spindle. According to the control command, the spindle is steplessly changed. There is no need to use multiple gear pairs between the spindles to change the speed. In order to expand the transmission range, it is generally still necessary to use a gear pair to achieve stepless speed regulation. Even so, the structure inside the headstock is much simpler than the conventional lathe. Another structural feature of CNC lathes is the rigidity, which is to match the high-precision control of the control system in order to accommodate high-precision machining. 3) The third structural feature of CNC lathes is light dragging. Tool holders generally use ball screws. The ball screw pair is one of the key mechanical parts of CNC lathes. The rolling bearings installed on both ends of the ball screw are dedicated uranium bearing. Its pressure angle is much larger than that of commonly used centripetal thrust ball bearings. This special bearing paired installation is optional and is best paired when the bearing leaves the factory. 4) In order to drive lightly, the lubrication of CNC lathes is relatively complete, and most of them are automatically lubricated with oil mist. 5) Because of the high price of CNC machine tools and the long life of the control system, the sliding guides of CNC lathes also require good wear resistance. CNC lathes generally use inlaid steel guide rails, so that machine tool accuracy can be maintained for a long time and its service life can be extended. 6) CNC lathes also have features such as adequate process cooling, tighter protection, etc. They are generally fully enclosed or semi-closed during automatic operation. 7) CNC lathes are generally equipped with automatic chip removal devices. The mechanical structure system of a typical CNC lathe is composed of a spindle transmission mechanism, a feed transmission mechanism, a tool holder, a bed body, an auxiliary device (an automatic tool exchange mechanism, a lubricating and cutting fluid device, chip removal, and overload limitation). The relative position of the guide rail of the CNC lathe bed and the horizontal plane is shown in Figure 1-2. It has 4 layouts: Figure 1-2 (a) Flat bed, Figure 1-2 (b) Slant bed, Figure 1-2 (c) Oblique Skateboarding of Flat Beds, Figure 1-2(d) is a stand-up bed. Relative position diagram of guide rail and horizontal plane of CNC lathe bed Horizontal bed body is of good craftsmanship, which is convenient for the processing of guide rail surface. The horizontal bed body is equipped with a horizontally placed knife holder to improve the movement accuracy of the knife holder. Generally, it can be used for the layout of large CNC lathes or small precision CNC lathes. However, because of the small space in the horizontal bed, it is difficult to remove chips. From the aspect of structure size, the horizontal position of the knife holder makes the horizontal dimension of the slide longer, thereby increasing the structural dimension in the width direction of the machine tool. As shown below, CNC Lathe Horizontal Bed The horizontal bed is equipped with a slanted slide and is equipped with a tilted rail guard. This layout form has a horizontal bed Ding feature, and on the other hand the machine width dimension is smaller than the horizontal configuration skateboard. And chip removal is convenient. The horizontal bed is equipped with slanted skateboards and oblique bed configurations. Skew skateboard layouts are commonly used by small and medium-sized CNC lathes. The two layout types are characterized by easy chip evacuation, hot iron filings do not accumulate on the guide rails, and easy installation of automatic chip conveyors; easy operation and easy installation of robots to achieve stand-alone automation; the machine has a small footprint and a simple shape Beautiful, easy to achieve closed protection. CNC Lathe tilt bed The tilt angle of the inclined bed is 30°, 45°, 60°, 75° and 90° (called vertical bed). If the tilt angle is small, it is inconvenient to remove chips; if the tilt angle is large, the guide of the guide is Poor sex and poor stress. The size of the inclination of the guide rail will also directly affect the ratio of the machine height and width. Taking into account the above factors, the slope of the bed of small and medium size CNC lathes is 60. Vertical bed
Flexible lift gate is a flexibel soft curtain door, inside and outside the two curtains , curtains used between the aluminum beams connected with a vertically movable rail , the roof beams have levels not in the same straight line and hanger large plants in particular Be applicable , Flexible lift door installation does not take up interior space in the hole inside , When the first move to open the door , and finally superimposed over the hole , Off event curtain rail first and then fall down until its is completely closed
Door body composition :
The bottom of the door curtain rail aluminum beam beam seal top drive system and transmission of electrical control systems and safety devices
Flexible door features:
1. Light weight compared with other types of the same size door , flexible door lighter weight reduces the strength of steel at the top of the doorway architecture degree requirements ,
2. Small compared with the same specification of the machine style doors 2, footprint ,flexible installation in the door after the hole is turned on internally stacked above the hole , do not take up interior space , Large Span hole may be provided a plurality of movable rail the entire door into several independent stacking doors shorten the span of a single door so that the overall thickness of the door is reduced , further reducing the footprint
3. Rational layout flexible doors with movable rail rail can set different activities based on the specific circumstances of the door into the door several sizes of uneven accumulation of doors to make the building as a whole rational layout greatly reduces the overall architecture of the space and cost
4. The wind strength between two layers of high flexible door curtain as the bottom of an aluminum beam has a wind skeleton steel structure , By adjusting the beam thickness and spacing , which can resist wind pressure of any intensity , so the door can be flexible for use in any area
5. The tensile strength of the flexible door after door curtain is double polyester fabric , high tensile wire rope equipped with ultra-high hole suitable for large machinery such as aircraft hangars and repository
6. The curtain coated with vinyl coated with a waterproof sunscreen and smoldering performance , capable of sound absorption retardant insulation mildew proof and so on
7. Safe door , Cube with anti-lock break to ensure safety in case of accidental breakage of wire rope jammed in the door quickly experience anywhere rails , Multiple protection features mechanical and electrical installation to ensure t he safety of goods passing aircraft and other vehicles and personnel , the movable rail is also equipped with anti-fall device , you can ensure reliable parked at the top of the hole after the movable rail is raised without falling , The bottom of the door is equipped with and airbag , it will immediately rebound to rise until the safety door drops open when obstacles encountered in the process , You can also install infrared protection device on the door
PVC flexible gate,pvc high speed gate door, pvc high speed rolling gate door, flexible rolling doors,fast doors SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfafrs.com
