CN101342663A - Integral processing method for truck frame of high-speed motor train unit - Google Patents

Abstract

The invention discloses an integrated processing technology of a high speed motor train unit bogie frame, comprising a magnetic dial indicator which is used to quantize and control clamping deformation and clamping force, an integrated accompanying chemical device which is used for the integrated processing of the frame, a numerical control core milling processing center which is used for the integrated processing of the frame. By using the magnetic dial indicator to quantize and control clamping deformation and clamping force, the integrated processing technology effectively controls the stress produced by clamping frocks, and furthermore guarantees the precision of the size of the frame after finishing processing and loosening the clamp. By using the method for determining the relationship between the workpiece and the machine tool coordinate system through two positioning, the integrated processing technology improves the utilization rate of the machine tool, and ensures that the improvement of the clamping precision of the frame becomes possible on the other hand. By using the numerical control core milling processing center, the integrated processing technology fully utilizes all kinds of functions of the machine tool to process the frame with a pentahedron analogously type, with the result that the precision loss which may be produced by multiple step processing can be effectively avoided, and the processing precision and quality of the frame can be greatly improved.

Description

Integral processing method for truck frame of high-speed motor train unit

Technical field

The invention belongs to mechanical part frock technology field, relate to a kind of integral processing method for truck frame of high-speed motor train unit.

Background technology

Be accompanied by the flourish of China Express Railway, the technical barrier that runs in the production domesticization process of associated parts becomes the key factor that restriction is produced, and how will external process for machining and manufacturing successfully transforming on the existing rolling stock manufacturing equipment of China becomes the problem that each high-speed rail technology introduction engineer will face.

The whole process technology of tradition framework is as follows: at first the whole clamp for machining of framework is fixed on the process equipment, and then with framework clamping to be processed, centering on anchor clamps, whole process takies equipment service time fully, process again at last, in a single day and go wrong in the process, almost be difficult to repair, be difficult to realize the secondary centering, do not guarantee whole machining accuracy because in a single day the finished framework of part takes off from anchor clamps.

Summary of the invention

Technical problem to be solved by this invention provides a kind of integral processing method for truck frame of high-speed motor train unit that can guarantee EMU bogie assembly precision and runnability.

For solving the problems of the technologies described above, the invention provides a kind of integral processing method for truck frame of high-speed motor train unit, it is characterized in that comprising the following steps:

1) use the magnetic force dial gauge that clamping deformation and clamping power are carried out quantified controlling:

Service precision is that the magnetic force dial gauge of 0.01mm is monitored all clamping points, and the strain that the control each point produces because of clamping power in clamping process is to minimum;

2) use the integral body processing of whole retinue chemical industry dress realization to framework:

Framework is clamped on the pallet soleplate, with pallet soleplate and the handling of framework one, is fixed on the bent plate that is erected in advance on the platen again;

3) use numerical control boring-mill work center to realize the integral body processing of framework.

Advantage and good effect that the relative background technology of the present invention produces are as follows:

1. used the magnetic force dial gauge that the framework clamping deformation is carried out quantified controlling, thereby effectively control is because of the stress of frock clamping generation, and then guarantees to unclamp after framework machines the precision of clamping size.

2. use by twice location and determine the method that concerns between workpiece and the lathe coordinate system, the processing theory of will accompanying is successfully applied in the framework process, thereby framework clamping, dismounting, repairing were effectively separated with the processing time kept in reserve, effectively improved the utilization rate of lathe so on the one hand, also made the preceding clamping precision of raising framework processing become possibility on the other hand.

3. use numerical control boring-mill work center, use comprises the various annexes of equipment configuration, makes full use of every function of lathe, and framework is carried out the processing of class pentahedron formula, thereby effectively avoided processing the loss of significance that may cause step by step, improved framework machining accuracy, quality greatly.

Description of drawings

Fig. 1 is a framework pallet clamping schematic diagram;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is a magnetic force dial gauge structural representation;

Fig. 4 is a framework processing bent plate structural representation;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the left view of Fig. 4;

Fig. 7 is the structural representation after framework retinue processing tool is loaded on bent plate.

The specific embodiment

Embodiment

1, with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, framework 1 reverse side that will process level up is placed on the retinue soleplate 2, laterally, vertically reaches short transverse location datum level 3,4,5 with framework and positions;

2, guarantee framework except that with locating surface 3,4,5 contacts not and have power or moment between other clamping device, earlier magnetic force dial gauge 10 is adsorbed on the retinue soleplate 2 during clamping, percentage gauge outfit contact framework clamping device 6,7,8,9, the position of institute's clamping, the dial gauge reading is returned to zero, adjustment constitutes clamping device 6,7,8,9 by pressing plate and adjustable supports, make dial gauge 10 readings be changed to 20 and (promptly prop 0.2mm, can slightly do increase according to operator's difference), compress framework by clamping device 6,7,8,9 subsequently, make zero until dial gauge 10 readings;

3, use overhead traveling crane retinue soleplate 2 one ends of slinging, thereby it is rotated around the other end holds up, framework 1 and retinue soleplate 2 one are lifted on the bent plate 13, framework and retinue soleplate one are fixed on the bent plate by positioner on the bent plate 11 and locking device 12;

4, start the numerical control locator(-ter), use probe to survey each locating surface 3,4,5 respectively, set workpiece coordinate system, start nc program and process each machined surface successively, finish the whole processing of framework, can check by the other ladder of bent plate in the process;

5, unclamp locking device 12 on the bent plate, use overhead traveling crane that the framework that machines is vertically sling together with retinue soleplate one, framework and retinue soleplate one level are put down, unclamp clamping, the cleaning framework.

Claims (1)

1, a kind of integral processing method for truck frame of high-speed motor train unit is characterized in that comprising the following steps:

1) use the magnetic force dial gauge that clamping deformation and clamping power are carried out quantified controlling:

Service precision is that the magnetic force dial gauge of 0.01mm is monitored all clamping points, and the strain that the control each point produces because of clamping power in clamping process is to minimum;

2) use the integral body processing of whole retinue chemical industry dress realization to framework:

Framework is clamped on the pallet soleplate, with pallet soleplate and the handling of framework one, is fixed on the bent plate that is erected in advance on the platen again;

3) use numerical control boring-mill work center to realize the integral body processing of framework.

Images