Reconstruction of Z100 radial arm drilling machining turret bearing seat plane

During the training of the Mechanical Equipment Repair Factory of the Port Authority, the author participated in the technical transformation of the Z100 radial drilling machine, which is to use the rocker drill to process the rotary plane of the door machine. The door machine belongs to the large-scale port lifting equipment, which is a large-scale component. It can not enter the workshop and the ordinary machine tool, which makes the processing difficulty more difficult. The turret bearing seat on the turntable and the cylinder has a diameter of 4 200 mm and a flatness of 0.3 mm. These two parts are respectively matched with the slewing bearing, which requires high precision and is also the core part of the slewing mechanism in the door machine. After working together with the technicians of the mechanic factory, the Z100 rocker drill was successfully transformed, and the rotary milling plane was completed. With the improved plane test and correction technology, the machining flatness was within 0.2mm, saving A lot of money and time have achieved good economic and social benefits.

1. Technical parameters and sketch of the door turntable assembly

4043 door machine turntable assembly dimensions (see Figure 1): 13 220mm (length) × 10 146mm (width) × 4 024mm (height), weight 124 512.1kg; surface dimensions of the cylinder bracket to be processed (see Figure 2) The outer ring diameter is 4 040mm, the inner ring diameter is 3 600mm, and the height is 1 506mm. The surface dimensions of the end of the cylinder to be machined (see Figure 3): the outer ring diameter is 4 282mm, the inner ring diameter is 3 600mm, and the height is 1 800mm.

2. Analysis of the state of the art before improvement

Since the size and weight of the door turntable assembly and the end of the cylinder are relatively large, and there is no relevant experience and equipment for machining, the external processing will affect the qualification of the door machine manufacturing qualification, so it can only be The equipment is modified, and the processing accuracy is also guaranteed to be within 0.3 mm of the flatness required by the pattern. The Z100 rocker drill was finally modified according to the size of the workpiece.

Radial Drilling Machine (see Figure 4) Dimensions: 4 390mm (length) × 50mm (width) × 4 130mm (height); spindle minimum span 540mm; spindle maximum span 3 000mm; minimum working height 440mm, maximum working height 2 100mm .

For more information, please download the attachment or view Metalworking (Cold Processing), Issue 19, 2013:

6 Series Alloy features: generally called Al-Mg-Si Alloy, the Mg and Si are used as main alloy element. Mg2Si is the main strengthening phase and the most widely used alloy at present. 6063, 6061 use the most, with the characteristics: moderate strength, good corrosion resistance, good welding performance, good technical performance (easy extrusion forming), good oxidation coloring performance. Application range: energy transfer tools (such as car luggage rack, door, window, body, radiator, box enclosure).Easy to coat and good processability. It can be used on low pressure weapons and aircraft joints.

 

 

Typical Alloy

Typical Temper

Specification

Thickness

Width

6005 6060 6061 6063 6082

T6/T651

≤170mm

1100

1150

1200

1250

1300

1350

1500



Typical Application : Aluminium For Automotive, Aluminium For Aviation, Industrial Mould, Mechanical Components, Transport Ship, Semiconductor Equipments,

6 Series Alloy

Aluminium Sheet,Aluminium Plate For Ship,Aluminium Alloy Sheet,Aluminium Plate For Truck

La Ya Aluminium products Co.,Ltd. , http://www.layametal.com