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The origin and structure of CNC gantry milling machine
Source: gantry milling machine, gantry machining center, gantry optical machine, machine tool casting - Hebei Daheng Heavy Machinery Co., Ltd. release time: 2020 / 9 / 3 9:11:41 click times:

       

It was first produced in China Gantry milling machine Whitney is American one thousand eight hundred and eighteen In order to mill the spiral groove of twist drill, American Brown Yu one thousand eight hundred and sixty-two The first universal milling machine was created in, which is the rudiment of the lifting table milling machine; one thousand eight hundred and eighty-four Around the year, it appeared again Gantry milling machine ; 20th century twenty The "half block" can be used to complete the milling machine - "Speed" or "speed" - Automatic conversion of "feed". 

Milling machine with portal frame and horizontal long bed. Gantry milling machine The machining accuracy and productivity are both high, which is suitable for processing the plane and inclined plane of large workpiece in batch and mass production. numerical control Gantry milling machine It can also machine space curved surface and some special parts. Gantry milling machine The portal frame is composed of columns and top beams. The crossbeam can move up and down along the guide rails of two columns. On the beam one two The milling head with vertical spindle can move laterally along the beam guide rail. A milling head with horizontal spindle can be installed on the two pillars respectively, which can move up and down along the column guide rail. These milling heads can process several surfaces at the same time. Each milling head has its own motor, speed changing mechanism, control mechanism and spindle components. During machining, the workpiece is installed on the worktable and then moves longitudinally. large Gantry milling machine The total weight of eight hundred and fifty Tons. Gantry milling machine There are also some variants to adapt to different processing objects. 

① Gantry milling and boring machine: the crossbeam is equipped with milling and boring head, and its spindle can make axial dynamic feed and has motion fine adjustment device , The speed can be adjusted as low as possible five millimeter / Points.

② Bridge Gantry milling machine : the worktable and workpiece do not move during machining , And moved by the gantry. It is characterized by large area and small travel capacity twenty It is easy to process extra long or heavy workpieces. The shape of the workpieces is similar to that of the planer. The difference is that the cross beam and column of the planer are not planer tool holder, but milling cutter holder with spindle box Gantry milling machine The reciprocating motion of the longitudinal table is not the main motion, but the feed motion, while the rotary motion of the milling cutter is the main motion.

    numerical control Gantry milling machine The large parts of the machine tool include bed, worktable Columns, beams Milling head slide plate, milling head RAM Milling head

Machine tool large-sized object Resin sand molding, high strength and high quality iron castings are used. The large blank is heat aged Secondary tempering of rough machining In order to eliminate the internal stress; after rough machining, carry out sufficient aging treatment to eliminate the processing residual stress; finish machining on the CNC gantry boring and milling machine adopts the way of free clamping for high-speed light cutting, so that the machine tool has good rigidity and accuracy retention. 

 

numerical control Gantry milling machine The utility model comprises a bed, a worktable erected on the bed and a numerical control circuit control system. A gantry frame is erected above the worktable, and the gantry frame also includes: the gantry carriage, which is fixedly clamped on the gantry carriage X On the shaft guide rail. Z The shaft guide rail is installed on the gantry. The crossbeam is provided with a Z The beam passes through the Z The shaft pulls the plate and is fixedly clamped on the plate Z On the shaft guide rail and the cross beam are also equipped with Y Shaft guide. Milling device, Gantry milling machine The milling device is movably installed on the Y Under the control of the CNC circuit control system, the gantry can operate on the axis guide rail X Y Z Three axis three-dimensional space milling. The numerical control Gantry milling machine With high precision milling, drilling, boring, cutting and other operations. 

         Jingke Daheng as a professional CNC Gantry milling machine Manufacturers, whether in technical guidance or after-sales use, are always ready to accept the user's consultation, welcome all friends to the factory on-site investigation, visit the company, sincere cooperation! sh-mjt.com 

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