A kind of lathe headstock
Technical field
The utility model relates to machining center part field, particularly relates to a kind of lathe headstock.
Background technology
In existing Computerized Numerical Control processing technology, lathe is generally made up of base, saddle, workbench, column, main spindle box five major part, and this five large assembly can be referred to as the basis of a machine tool.Main spindle box is the most important execution unit of lathe, and it can realize Z axis and move and rotate with main shaft.The complex structure of lathe headstock in the market, is easily out of shape, and radiating effect is bad, and structural strength is not high, thus affects the quality of machine tooling part; Because when work pieces process, lathe headstock itself can produce vibrations, this can affect the precision of workpiece further, makes workpiece, defect more.
Utility model content
In order to solve the problem and defect, the purpose of this utility model is to provide a kind of lathe headstock.This lathe headstock structural strength is large, stability is strong, thermal diffusivity good, the low long service life of lathe headstock cost, effectively can reduce the vibrations of main spindle box during machine tool processing workpiece.
To achieve these goals, the utility model is by the following technical solutions:
A kind of lathe headstock, comprises the main shaft body for being connected with machine pillar and the bearing for being connected with knife clamping system combines; The combination of described bearing comprises through described main shaft body and the rail groove extended along Z-direction and along the axle bed of Z-direction through described rail groove; Described rail groove is relative to two sides being provided with slide block and conduit on two sides relative to described axle bed coordinates.
Further, the side of described main shaft body is provided with the rectangle installing hole for installing belt pulley.
Further, described main shaft body inside is cavity and is provided with reinforcement.
Further, the thickness of the chamber outer wall of described main shaft body is greater than the thickness of cavity inner wall.
Further, the front of described main shaft body is provided with the circular hole for Exhaust Gas, and the junction of described circular hole and described machine pillar and described main shaft body is adjacent.
Further, the stretch hole for lifting and carrying is provided with on the extended line of described circular hole and on the position being positioned at main shaft body two ends.
Further, the described stretch hole for lifting and carrying is circle.
Further, the shape of described rail groove is cylindrical.
Further, described main shaft body is provided with the rectangle kidney slot for dispelling the heat, and described rail groove is arranged on one end of described rectangle kidney slot.
Further, the quantity of the described slide block be arranged on described rail groove is six.
The horizontal plane that Z axis forms perpendicular to X-axis and Y-axis, namely Z-direction is vertical direction.
Owing to adopting above technical scheme, the utility model compared with prior art tool has the following advantages: 1, the utility model arranges the slide block quantity on groove is in-orbit six, and substantially increase the performance of lathe headstock, stability is better.The side of 2, main shaft body of the present utility model is provided with the rectangle installing hole for installing belt pulley, convenient, quick when making belt pulley is installed.3, the thickness of the chamber outer wall of main shaft body of the present utility model is greater than the thickness of cavity inner wall, makes main spindle box when casting cooling, avoids the inconsistent and internal stress that causes of cooling velocity, makes main spindle box produce distortion, thus affect the quality of machine tooling product.4, the front of main shaft body of the present utility model is provided with the circular hole for Exhaust Gas, and gas fully discharges the structure not affecting spindle head of lathe, and manually washes the sand during convenient casting.5, main shaft body inside of the present utility model is cavity and is provided with reinforcement, makes main spindle box bulk strength become large, eliminates the harmful effect produced because main spindle box cavity wall is thin, add stiff stability, long service life.6. the front of main shaft body of the present utility model being provided with the rectangular kidney slot for dispelling the heat, main spindle box air permeability being improved, facilitates the assembling of main spindle box parts to regulate, also make in structure more attractive in appearance.Lathe headstock structural strength of the present utility model is large, stability is strong, thermal diffusivity good, the low long service life of lathe headstock cost, and effectively can reduce the vibrations of main spindle box during machine tool processing workpiece, therefore the utility model can be widely used in lathe.
Accompanying drawing explanation
Fig. 1 is the front view of lathe headstock of the present utility model;
Fig. 2 is the side view of lathe headstock inside of the present utility model;
Fig. 3 is the sectional view of the A-A section line along Fig. 1;
Fig. 4 is the sectional view of the B-B section line along Fig. 2;
Fig. 5 is the sectional view of the C-C section line along Fig. 2;
Fig. 6 is the schematic diagram of the slide block installation site of the utility model rail groove.
Description of reference numerals:
The junction of 1 slide block, 2 rectangle installing holes, 3 chamber outer walls, 4 cavity inner walls, 5 circular holes, 6 rectangle kidney slots, 7 reinforcements, 8 stretch holes, 9 main shaft body, 10 rail grooves, 11 machine pillars and main shaft body.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 to Fig. 5 shows the sectional view in the front view of lathe headstock, side view and each cross section.Lathe headstock comprises the main shaft body 9 for being connected with machine pillar (not shown) and the bearing for being connected with knife clamping system (not shown) combines; Bearing combination comprise through main shaft body 9 and the rail groove 10 extended along Z-direction and along Z-direction through the axle bed (not shown) of rail groove 10; Rail groove 10 relatively two sides is provided with slide block 1 and conduit on two sides relative to axle bed coordinates.Fig. 6 shows the installation site of rail groove 10 top shoe 1 of lathe headstock bearing combination, and slide block 1 quantity on rail groove 10 is six, and what rail groove 10 was coordinated with axle bed is better, and substantially increase the performance of lathe headstock, stability is better.
Fig. 1 is the front view of lathe headstock, and the front of main shaft body 9 is provided with the circular hole 5 for Exhaust Gas, and circular hole 5 is adjacent with the junction 11 of machine pillar and main shaft body 9; Gas fully discharges the structure not affecting spindle head of lathe, and manually washes the sand during convenient casting.At the other end of main spindle box body 9, namely the other end of the junction 11 of machine pillar and main shaft body 9, arranges rail groove 10, and the cross section of rail groove 10 is circular (as shown in Figure 1).The front of main shaft body 9 is provided with the rectangle kidney slot 6 for dispelling the heat, and rectangle kidney slot 6 one end comprises rail groove 10.Rectangle kidney slot 6 makes main spindle box air permeability improve, and facilitates the assembling of main spindle box parts to regulate, and makes on headstock structure more attractive in appearance.
Fig. 2 shows the side view of lathe headstock inside; Main shaft body 9 inside is cavity and is provided with reinforcement 7, and make main spindle box bulk strength become large, eliminate the harmful effect produced because main spindle box cavity wall is thin, add stiff stability, service life is elongated.The side of main shaft body 9 is provided with the rectangle installing hole 2 for installing belt pulley, convenient, quick when making belt pulley is installed.Sectional view Fig. 3 along the A-A section line of Fig. 1 shows the side of lathe headstock, and the side view of rail groove 10 is rectangle, and be circular in conjunction with rail groove 10 cross section in front view 1, the shape of rail groove 10 is cylindrical.On the extended line of the circular hole 5 (as shown in Figure 1) in main shaft body 9 front and the circular stretch hole 8 position being positioned at main shaft body 9 two ends is provided with for lifting and carrying, main spindle box is made to be easy to carrying and mobile like this.
Fig. 4 is the sectional view of the B-B section line of side view along Fig. 2 lathe headstock inside, the thickness of the chamber outer wall 3 of main shaft body 9 is greater than the thickness of cavity inner wall 4, make main spindle box when casting cooling, avoid the inconsistent and internal stress caused of cooling velocity, make main spindle box produce distortion, thus affect the quality of machine tooling product.
Lathe headstock structural strength of the present utility model is large, stability is strong, thermal diffusivity good, the low long service life of lathe headstock cost, and effectively can reduce the vibrations of main spindle box during machine tool processing workpiece, therefore the utility model can be widely used in lathe.
The foregoing is only preferred embodiment of the present utility model, be not used for limiting practical range of the present utility model; If do not depart from spirit and scope of the present utility model, the utility model is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the utility model claim.