Mainly use a knife to cut the prefabricated holes in the workpiece.Generally, the sword rotation is the main movement, and the movement of the knife or workpiece is moved.It is mainly used for processing high -precision holes or one -time positioning to complete multiple holes. In addition, it can also be engaged in processing other processing planes related to pore essence.So what are the categories and characteristics of the bed?
Overview of the bed
The beds are divided into types such as horizontal beds, landmark milling machines, diamond beds, and coordinates.
① Circular bed:
The most widely used beds with the most wide performance, suitable for small -scale production and repair workshops.
② Landing beds and landing grilled milling machines:
It is characterized by the fixed workpiece on the floor -to -ceiling platform. It is suitable for workpieces with large processing dimensions and weights for heavy mechanical manufacturing plants.
③ Vajrayana bed:
The use of diamond or hard alloy knives, with small feeds and high cutting speeds with high cutting accuracy and smaller surface roughness, it is mainly used in large quantities.
④ Coordinates Bed:
It has a precise coordinate positioning device, which is suitable for pores with high requirements for processing shapes, size, and pore distance accuracy. It can also be used to carry out lines, coordinate measurement and scale, etc. It is used in tool workshops and small and medium -sized production.
Other types of tadpoles include vertical tower -type tower -milling machines, deep -hole beds and cars, tractors repair beds.
Troubleshooting structure characteristics
1. The long -hole cutting represented by the coaxial hole of the box parts is one of the most important content in metal cutting processing.Although there are still methods such as the long -hole cutting of the pillar, the pillar support of the pillar support or the manual workpiece of the pillar support, or the pillar of the pillar of the pillar, and the desktop milling lathes.The central use of the center has greatly improved the coordinate positioning accuracy of the various horizontal milling machines and the accuracy of the workbenchs rotation.The large -scale production and application of the ordinary or CNC planing milling machines of the shape bed layout, from the machine tool structure to the workbench to turn back 180 ° customized head -up holes, almost becoming a method of cutting long holes on this machine tool.
2. The main factors of the same shaft error sent to the head of the head and the holes and its compensation affect the coaxial bench of the benchmoring machine as the desktop milling machine.The half -long hole D1 axis that has been made in the front coincides with the other half -hole D2 with the other half -hole d2 after turning around.And around 180 ° of the workbench, the inclination error DF generated by the table on the XY coordinate plane, the inclination error DY generated in the YZ plane and the translation error DY generated in the Y direction of Y is also the shaved platform milling machine to take the head and the holes.Important factors of axis.However, the impact of the spatial position of the axis axis on the coaxiality of the head of the head is usually sent to the planer milling machine that is fully cut into the full -length pillar. It is obviously different from the desktop milling machine that is usually transferred by the workbench.
3. Reasonable determination of the longitudinal position of the column when the axis is sent
When encountering a specific situation, the milling machine must fix the pillar on a suitable position on the vertical bed, and when the axis shaft with a knife extends the knife as the form of a holes, the axis axis and the nominal axis of the holes are in XZ XZThe cross -angle error DB in the plane, the corner error DG in the yz plane, is the same as the desktop milling machine, which has an important impact on the coaxiality of the head of the head.The deformation of the rod caused by the cause of the rod also has a greater impact on the coaxiality of the head of the head.Different from the desktop milling machine, when the shaft of the shaft of the planing -type milling machine extended the holes, the columns that can be moved vertically must be fixed on a certain position on the longitudinal bed, and it is important that this determined position can be and should be subject to being able to be subject to being and should be subject to being.choose.
4. Reasonable determination of the tool location on the bed
When the columns are sent to the head of the head in the bed, the knife clamped on the knife clipped on the axis shaft is used to meet the distance from the zirling center of the knife to the front of the spindle box.Half of Kongs length (no matter how long the teenager can pass through the long Kong, too large, the axis rigidity decreases); on the other hand, it must also meet the turning center of the tip of the knife and the tip of the knife, placed in the intersection of the axis axis and the vertical movement of the column.O and so on.
Bed classification
The bedding bed is the most widely used in bed.It is mainly perforated, the accuracy of the pores can reach IT7, and the surface roughness RA value is 1.6-0.8um.The horizontal axis is arranged and the axis is made of axis.This kind of machine tool is widely used and is more economical. It is mainly used for the hole processing of the box (or bracket) parts and other processing surface processing surface processing.The appearance of the appearance is beautiful and general layout.The bed body, columns, and slides are all rectangular guide, which has good stability.The guide rail uses refrigeration and hardening, high abrasion resistance.Digital simultaneous display, intuitive and accurate, can improve work efficiency and reduce costs
Coordinates are a type of high -precision machine tool.Its structural characteristics are precision measurement devices with coordinate positions.The coordinate beds can be divided into single -column coordinates, double -column coordinate beds and horizontal coordinates.The bed with a 163B single -pillar coordinate bed with a precision coordinate positioning device. It is mainly used to cut the hole system with high size, shape, and especially position accuracy.EssenceSingle -pillar coordinate bed: The main axis drives the tool to rotate the main movement, and the main shaft sleeve is made along the axis.Features: simple structure, convenient operation, especially suitable for the precision holes of board -shaped parts, but its rigidity is poor, so this structure is only applicable to small and medium -sized coordinate beds.Double -pillar coordinate bed: The tools are installed on the main axis as the main movement, and the workpiece is installed on the workbench with the workbench along the bed to move the vertical line.Its rigidity is better, and large -scale coordinates are used in this structure.The main parameters of the double -pillar coordinate bed are the width of the work table.Circular coordinates: The workbench can perform rotation motion in the horizontal plane. The feed movement can be implemented by the workbench vertically or the axis of the spindle.Its processing accuracy is high.
It is characterized by processing at a very small amount of feed and high cutting speed. Therefore, the workpiece of the processing of the diamond bed has high size accuracy (IT6), and the surface roughness can reach 0.2 micron.Use diamond or hard alloys to perform precision holes in bed.
Deep holes
Deep -hole drilling bed Drilling the bed itself is strong, the accuracy is good, and the main axis speed range is wide. The feed system is driven by the AC servo motor, which can meet the needs of various deep -hole processing processes.The oil grant device is tight and the workpiece is tightly used to use a hydraulic device, which is displayed, safe and reliable.You can choose the following forms of work:
1. Rotate workpieces, rotation of tools, and re -enrollment, suitable for drilling holes and small diameter holes;
2. The workpiece rotation, the tools do not rotate, only for reciprocating, suitable for large diameter holes and kit processing;
3. The workpiece does not rotate, the tool rotates, and the movement is re -entered. It is suitable for the drilling of the complex workpiece and the drilling holes and small diameter of the small diameter.
The workpiece is placed on the floor -to -ceiling workbench, and the column moves long or horizontally along the bed.Used to process large workpieces.In addition, there is a milling machine that can be used for milling, or a deep -hole drilling machine that is drilled.

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