Focus on the discussion of the treatment for treatment for heavy machine arm frames in the construction machine industry, and processing methods and processing processes and processing processes are based on the structure of the structure of the bilateral structure and the high requirements of bilateral holes. The optimization of the structure and process of processing procedures for processing and improving the effectiveness of advanced advanced CNC advanced instructions specific to the Siemens CNC system, and has obtained good results in practical treatment.
1 preface
The arm rack (see Figure 1) is one of the key components of the crane. Generally requires both sides possible when the holes are necessary. This article explores the process and methods of improving the processing of arm racks by optimizing the processing process and procedures for real parts.
Figure 1 The physical object of the armband
2 Characteristics of the house frame structure
The crane boom is made up of a multiple arm rack. The base arm is connected to the rotary platform through the tail of the arm, while the amplitude hole in the central part must be connected to the transformer mechanism which controls the pitch angle of the arrow. Whether it is a variable hole or tail holes (see Figure 2), it is relative to the vertical central line of the arm rack, and the bilateral symmetry of the arm arm and the amplitude holes have Some co-axis requirements. In particular the two hinge points opposed to the tail of the arms, the axial spacing is large, the same requirements of the axis are high and the installation surface of the hinge is located outside the two point holes hinge.[1]。
Figure 2 The barrier exchange hole and the tail hole in the arm
3 -arms rack treatment machine
Faced with such treatment requirements, if the single -headed board flaw machine is used to treat the arms and variable holes of the symmetrical arrangement on both sides of the arm rack, it will not only increase the time of the Part of the rooms and find the right time on several occasions, but also in twice, the folding of the fibers will inevitably be superimposed to find a positive error, reducing the coaxiality of the two pairs of holes. Cutting and dying on both sides of the room is the most.[2]Essence This article mainly presents the method and programming of the bilateral treatment of the arm rack at the same time and its programming.
Figure 3 Double invoice placing plaifier of the landing fog
The grilled ground grinding of the double floor plating type adopts the mobile structure of workbench, that is to say that the workbench is the only X axis of the whole machine. The advantage of this structure is that the hosts on both sides share the same established, and the two main trees are always static in the direction X. The two sides of the whole arms are treated at the same time, the relative positions of the two main trees in direction X still remain unchanged.
When processing machine tools using this structure, if only the two hosts are checked by double channel control, the two main trees cannot be carried out at the same time to perform the treatment containing the Interpolation of axis x. Consequently, the control system must also have an axial coupling function, allowing hosts of three geometric trees with X, Y and Z to operate independently in Canal 1, and another host who does not have the X axis In Canal 2 separates its Y and Z axis separately separately.
Figure 4 Double invoice placing trays of landing axes for landing
The treatment of the coupling method is also very beneficial for writing the treatment program. Since the symmetrical treatment part is only written in the program 1 program, when the processing method, the processing location and the treatment parameters are modified, it is only necessary to modify the program in the channel 1 to prevent the modification of the double channel program to be unified. The question of whether the use of the coupling function is linked to the canal coordination function in the control of the double channel canal. Because Canal 2 does not have the XX toilet, the moment of opening and closing the coupling function is critical. Before all the trees involved in the treatment of treatment interpolations come into the coupling state, the principal and the axis must be positioned in advance at an appropriate position. Instructions so that the relevant collection position can be linked to relevance.
4 -arms rack processing process
Given the long -on -arm parts, according to the priority principle of the treatment site, first treat tail repetitions at the end of the arm, then treat the variable hole in the middle of the arm rack[3]Essence The hand frame processes are illustrated in Figure 5. See Table 1 of the processing process card.
Table 1 Weapons processing card
Figure 5 The brassard processing process indicates
Sales of the grinding of the opposite sink: 159 1097 4236
5 List of treatment programs
According to the provision of the process, the Rack ARM treatment program divides the structure according to the needs of the canal and the classification of the program function.
Table 2 Treatment List of tickets
The main program contains the overall framework of the processing process. Each sub-program of treatment function is responsible for completing the specific treatment action for a certain part. The related coupling control sub-program is responsible for the definition of the different machine assignment machines that require a coupling control, and activate and close the coupling function in each treatment function by-program.
6 Example of processes and procedure for coupling privilege
The double channel coupling processing process is illustrated in Figure 6. Examples of the treatment program are presented in Table 3.
Figure 6 Evening of the link processing process
Table 3 Example of a coupling connection program
7 final words
The purpose of treatment of the program structure is to break down complex machining programs into simple components according to the logical structure, which makes programming and modification simpler and more efficient. The method of programming processes of the processing rhythm of the processing machine of the plating double factor, as well as instructions such as the coordination of the transverse program and the bonding coupling control used in the two simultaneous treatments of the ‘Main axis, were applied to real treatment. The practice has proven that this method resolves the efficiency and precision of the symmetrical position holes in the arm rack.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
