CN202192427U

CN202192427U - Column structure for fixed-beam portal boring miller

Info

Publication number: CN202192427U
Application number: CN2011202693590U
Authority: CN
Inventors: 高力; 张博; 童璐; 周金平
Original assignee: CHANGZHOU CHANGLONG MACHINE TOOL MANUFACTURING Co Ltd
Current assignee: CHANGZHOU CHANGLONG MACHINE TOOL MANUFACTURING Co Ltd
Priority date: 2011-07-28
Filing date: 2011-07-28
Publication date: 2012-04-18
Anticipated expiration: 2021-07-28

Abstract

The utility model relates to a column structure for a fixed-beam portal boring miller which comprises a column body. A plurality of connecting bars extending towards middle are fixedly arranged on the inner peripheral wall of the column body and are connected together by connecting rib frames; horizontal reinforced bars and vertical reinforced bars are arranged in the column body; and the horizontal reinforced bars, the vertical reinforced bars and the connecting bars are connected with each other. Compared with the conventional structure, inclined bars of the conventional structure are eliminated, the horizontal reinforced bars and the vertical reinforced bars are added, and all the reinforced bars are connected into a whole; when a machine tool is used for processing a workpiece, action force generated between the workpiece and the tool is transferred to the column, and bending torque and torsion moment are generated on the column; as the horizontal reinforced bars and the vertical reinforced bars added in the column are connected into a whole, the load generated by the bending torque and the torsion moment is uniformly absorbed and converted into the stretching and compressing deformation of the reinforced bars inside the column, therefore, the deformation of the column is reduced, and the processing precision of the machine tool is guaranteed.

Description

A kind ofly decide beam gantry boring and milling machine pillar construction

Technical field

The utility model relates to the Machining Technology field, is specifically related to a kind of beam gantry boring and milling machine pillar construction of deciding.

Background technology

Decide the beam gantry boring and milling machine and be widely used in machine industry; Become the main process equipment of industries such as metallurgy, Aeronautics and Astronautics, automobile making; The column of deciding the beam gantry boring and milling machine is the critical component of lathe; It plays the important function that links lathe bed, carries crossbeam, planker, ram, whether reasonable dynamic property and the machining accuracy that directly has influence on whole lathe of the performance of this structure.Because the normal bigger workpiece of processing dimension, in order to increase the processing stroke of Z axle, column also need be increased thereupon; In Milling Processes, the interaction force between cutter and workpiece passes to crossbeam along planker, is passing to column through crossbeam; After common column is increased; Because the rigidity of foundry goods interior tendon plate structure is not enough, and column is deformed, and directly influences the machining accuracy of lathe.

A kind of structure like existing column: Fig. 1 and vertical view thereof are shown in Figure 2, and it mainly is made up of perpendicular muscle 1, horizontal bar 2 and diagonal bar 3, because three types of gussets all are distributed in the foundry goods sidewall, lack connection, very big cavity of the middle formation of column between mutually.And when lathe was processed, the interaction force between cutter and the workpiece passed to crossbeam through the ram planker, passed to column by crossbeam again, and machine pillar mainly bears three kinds of load: the one: from the gravity of crossbeam and planker ram assembly; The 2nd: A as shown in Figure 2 to B to crooked moment of torsion; The 3rd: as the C among Fig. 2 to the distortion moment.Though thereby the pillar construction of this structure can bear the gravity than cross bearer; But its bear A to B to crooked torque capability more weak; Especially when lathe when carrying out high-rate cutting; Produce distortion moment C greatly, make column that very big distortion take place, thereby influence machine finish.

Summary of the invention

To above-mentioned technical problem, the utility model provides a kind of beam gantry boring and milling machine pillar construction of deciding, and it is in that not increase column cross-section long-pending; Do not increase under the prerequisite of casting weight; Again optimize the inner structure of strengthening of column, effectively changed the structural behaviour of column, make the torsional rigidity of column and bending rigidity significantly improve; Effectively reduce the deflection of column, thereby improved the stability and the machining accuracy of lathe.

The technical scheme that realizes the utility model is following:

A kind ofly decide beam gantry boring and milling machine pillar construction; Comprise the column body; Be set with the many dowels that extend to the centre at column body internal perisporium; Many dowels link together through the connection box muscle, are provided with horizontal reinforcement, waling in the said column body, and its horizontal reinforcement, waling and dowel interconnect.

The two ends of said horizontal reinforcement are connected to an end of two walings, also extension is connected on the connection box muscle; The two ends of waling connect two horizontal reinforcements respectively, also extension is connected on the connection box muscle; In the column body, form square reinforced bulkhead; Thereby all reinforcements in being arranged on column all connect as one, and increase its torsional rigidity and bending rigidity.

Adopted such scheme, the structure of this column is with respect to structure in the past, and the diagonal bar that it has been cancelled in the structure has in the past increased horizontal reinforcement, waling, and interconnects between each reinforcement and be integral; Thereby when the machine tooling workpiece; Give column by the force transmission that each other produces between workpiece and cutter, and on column, produce crooked moment of torsion, distortion moment, and owing to increased horizontal reinforcement, waling in the column and linked into an integrated entity; The load of its generation is evenly absorbed; Be converted into the stretching of the inner reinforcement of column and the distortion of compression, thereby reduced the distortion of column, guaranteed the machining accuracy of lathe.

Description of drawings

Fig. 1 is the structural representation of existing column;

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

Fig. 3 is the structural representation of the utility model;

Fig. 4 is the vertical view of Fig. 3;

Among the figure, 1 is perpendicular muscle, and 2 is horizontal bar, and 3 is diagonal bar, and 4 is the column body, and 5 is dowel, and 6 is the connection box muscle, and 7 is horizontal reinforcement, and 8 is waling.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified.

Referring to Fig. 3, shown in 4; A kind ofly decide beam gantry boring and milling machine pillar construction; Comprise column body 4, be set with the many dowels 5 that extend to the centre at column body internal perisporium, many dowels link together through connection box muscle 6; In column body 4, be provided with horizontal reinforcement 7, waling 8, its horizontal reinforcement 7, waling 8 interconnect with dowel 5.Wherein, Laterally the two ends of reinforcement are connected to an end of two walings, also extension is connected on the connection box muscle; The two ends of waling connect two horizontal reinforcements respectively, also extension is connected on the connection box muscle, in the column body, form square reinforced bulkhead.It is long-pending that the utility model does not increase column cross-section; Do not increase under the prerequisite of casting weight; Again optimize the inner structure of strengthening of column, effectively changed the structural behaviour of column, made the torsional rigidity of column and bending rigidity significantly improve; Effectively reduce the deflection of column, thereby improved the stability and the machining accuracy of lathe.

Claims

1. decide beam gantry boring and milling machine pillar construction for one kind; Comprise the column body; It is characterized in that: be set with the many dowels that extend to the centre at column body internal perisporium; Many dowels link together through the connection box muscle, are provided with horizontal reinforcement, waling in the said column body, and its horizontal reinforcement, waling and dowel interconnect.

2. a kind of beam gantry boring and milling machine pillar construction of deciding according to claim 1; It is characterized in that: the two ends of said horizontal reinforcement are connected to an end of two walings, also extension is connected on the connection box muscle; The two ends of waling connect two horizontal reinforcements respectively, also extension is connected on the connection box muscle, in the column body, form square reinforced bulkhead.