Gantry Milling Machine Installation And Commissioning Requirements
Gantry milling machine installation position requirements: In order to maintain the working accuracy of the machine tool, the installation position is good to choose the impact, vibration and temperature changes are small, which is convenient for the lifting and transportation of parts and the traffic is not obstructed. In addition, the milling machine should be installed in places where dust and metal chips are often directly in. Avoid wearing the rail surface quickly and grinding. The limit dimensions for moving the ends of the table can be referred to the foundation map. The installation position of the electrical cabinet on the foundation map is for reference only, and the user's layout can be determined according to the specific situation of the layout of the workshop (but the cable length should be considered)
The installation requirements of the milling machine for the gantry milling machine: The working precision of the milling machine is closely related to the structural rigidity of the installed foundation. The poor foundation construction will cause deformation after being loaded, which will seriously damage the accuracy of the machine. The preparation of the foundation must take into account the soil conditions and temperature changes. If it is affected, the foundation for construction and installation shall be carried out according to the foundation map. Use concrete with the number 100-150, and install the hole for the foundation screw. The depth of excavation is determined by the carrying capacity of the soil, and the foundation map specifies the small depth of the Zui. The base surface should be flat and the planer milling machine must be installed after the concrete has completely dried.
Gantry milling machine assembly program
1. Installation and adjustment of the horn and foundation nails are carried out separately when installing the bed and the column. The adjustment horn should be placed at the appropriate position on the surface of the foundation. The height of the horn should be consistent and the horn should be made. There are high and low adjustment margins. Note that the horn is placed not at the position of the foundation screw specified by the foundation, but at a certain place between the foundation screws. The foundation screw is placed first in the foundation hole, after the bed and column are placed on the foundation. Pass it through the corresponding foundation screw hole and screw the nut.
2. Install the bed, place the bed on the horn, check the contact and make a coarse adjustment. Use the inspection rod, flat ruler and level to coarsely adjust the bed to make it level. It is not allowed to exceed 0.04/1000 in the middle of the bed. (Longitudinal and horizontal), after the coarse adjustment is completed, the concrete marked with No. 200 or above can be poured into the hole of the foundation.
The surface must be flattened. After drying, place the adjustment horn according to the position shown on the foundation map, and then start fine adjustment of the bed. The adjustment is generally carried out in the following order: based on the central installation level, from the middle, And start from the back to the two ends, at the same time adjust the non-straightness of the two rails in the vertical plane and the distortion of the two rails, adjust the non-straightness of the "v" rail in the horizontal plane. Because the three precisions affect each other, it usually takes several iterations to meet the requirements. In addition, the fine adjustment of the bed can also adjust the straightness of any one of the guide rails in the vertical plane, then adjust the distortion of the two guide rails based on the guide rail, and then check the non-straightness of the other guide rail in the vertical plane. After that, adjust the non-straightness of the "V" type guide rail in the horizontal plane. Under the conditions that meet the requirements, adjust the nut of the horn and the nut on the foundation nail to be tightened.
Pay attention to the following points when checking the accuracy of the milling machine bed:
(1) Pay attention to the following points when selecting the accuracy of the combined bed:
(1.1) Select qualified gages such as: level, wire, flat ruler.
(1.2) During the inspection and adjustment process, when moving the inspection rod and the flat ruler, the mutual position of the whole system should be kept constant to reduce the measurement error.
(1.3) Note that each horn should be placed correctly, especially the bottom surface of the horn must be flattened, and it is not allowed to tilt up and down, otherwise it will lead to changes in accuracy and damage.
3. Install the column and the connecting beam. After the bed is coarsely adjusted, the column and the connecting beam can be installed. The measuring tools for installing the column are as follows: level, wire and flat.
(2) During the inspection and adjustment process, when moving the inspection rod and the flat ruler, the mutual position of the whole system should be kept constant to reduce the measurement error.
(3) Note that the horns should be placed correctly, especially the bottom surface of the horn must be flattened, and it is not allowed to tilt up and down, otherwise it will lead to changes in accuracy and damage.
3. Install the column and the connecting beam, and then install the column and connecting beam after the bed is coarsely adjusted, and install the column.
The foundation screws and horns are the same as the bed. The column is coarsely adjusted so that the guide rails can be perpendicular to the geometric plane formed by the guide rails in front, rear, left and right, and the front rail faces of the two columns should be in the same plane. Use a frame-shaped level to check that the plane of the column guide should not exceed 0.05/1000, then pour the concrete together with the bed, and flatten the surface, adjust the horn on the pad, and then fine-tune the column after drying. After fine adjustment of the bed, the column and The connecting screw of the bed is evenly tightened, and the coloring method is used to check whether the pin is evenly matched with the taper hole of the column bed. At the same time adjust the horn, install the connecting beam, and check the installation accuracy of the column, check the non-perpendicularity of the column and the plane of the bed rail, as follows: put the inspection rod ("v"-shaped guide rail) on the guide rail in the middle of the bed And flat feet (flat rails), which are placed on the level, and then inspected in the middle of the left and right columns with a frame-shaped level. The error is based on the algebraic difference between the bed and column level readings, and the value must not exceed 0.03/1000 (the column guide surface only Tilt forward, the front rail faces of the two columns should be coplanar, and the difference should not exceed 0.02/1000. Then, place a flat ruler on the inspection rod and the flat ruler in the middle of the bed. Place the level on the side of the bed and inspect the side rail faces of the two columns. The inspection method and values are the same as those on the front rail of the inspection column.
Therefore, it must be carefully installed and adjusted. After installation, the square head at the pulley should be shaken by hand, and the work table should be able to move.
5. Install the beam lifting box and the side tool holder device, install the beam lifting box on the top of the column, position the pin, and press the screw, then place the side knife frame slide on the right column rail. Wipe and apply oil, then insert the strip, install the pressure plate, and use the jack or square wood to hold the side knife screw from the lifting box into the side tool holder nut. Before this, the right end beam is lifted. The nut should be inserted through the side turret lead screw and the beam rods are then threaded into the lift nut.
6. Install the beam: Wipe the surface where the column and the beam are in contact with each other and apply the lubricating oil. Before that, adjust the lifting nut to the left and right at the same height, then place the beam on the column rail and lift the wire. The female coupling is such that the upper rail of the beam is horizontal and the clamping plate, the pressure plate and the strip are mounted. Turn the beam to lift the upper end of the screw to adjust the horizontal accuracy of the beam.
7. Install the gantry top.
8. Refer to the “Electrical Manual” for the installation and wiring of electrical equipment.
9. Start the planer and install the workbench. Before starting the planer, thoroughly check whether the running mechanism and electrical equipment are complete and correct, and understand the functions of each control button and handle. Re-check the accuracy of the bed according to the machine accuracy table. After passing the test, press the “lubrication sign” to fill the parts. After starting the workbench drive system, manually turn the reversing switch to observe whether the drive gear is running normally, and then wipe the bed rail and the workbench guide to lift the workbench.
10, test run and check accuracy
(1) Start the machine to move the table, check its moving direction and motor steering correctly, and pay close attention to the lubrication of the table rail.
(2) Test feeding movement: Before the test, the clearance of each sliding guide surface of the tool holder should be adjusted, and the elasticity of each sliding surface should be checked by hand cranking the tool holder, and then the oil can be injected into each sliding surface to carry out the motorized feeding. Test, before the test, the gear or handle that is turned on can be placed in the middle position, observe whether the action of the feed mechanism is normal, check whether there is any obstruction, and then place each tool holder in the horizontal and vertical feed state. Motorized feed test.
(3) Test beam lifting movement: Before starting, the clearance of each sliding guide surface should be adjusted, and the screw should be loosened for lifting movement test.
(4) After the test run is completed, the accuracy is checked item by item according to the certificate of conformity and adjusted. If necessary, plan the "T" groove of the countertop.
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