Summary of the invention
It is an object of the invention to the equipment for grinding providing a kind of simple in construction for above-mentioned deficiency, with low cost, working (machining) efficiency is high.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of coarse-fine mill Combined machining lathe, it includes pedestal 1, base rail 2, lathe bed 3, column 10, back timber the 7, second servomotor 8, spindle motor 6, replaceable main spindle box 5, tool heads 4, support 11, hoist cylinder 12, callosity 9; Along pedestal 1 bottom even multiple callosity 9, base rail 2 and lathe bed 3 be set be fixedly installed on pedestal 1; Base rail 2 is two closed slides, same one end of two parallel base guide rails is respectively provided with a servo longitudinal motor, it is respectively provided with a screw mandrel on the top of two parallel base guide rails, one end of screw mandrel is connected with the rotation axle of servo longitudinal motor, the bottom of two columns 10 is respectively connected by slide block is fixing with feed screw nut, longitudinally respectively arranges a rule on the outside of two base rail 2; The side of two columns 10 is respectively provided with column guide rail, back timber 7 is arranged on column guide rail by slide block, a support 11 it is respectively provided with in the outside of two columns, the bottom of support 11 is fixed with reinforcement, each support 11 is fixedly installed a hoist cylinder 12 respectively, the piston rod of hoist cylinder 12 is connected with back timber 7, and back timber 7 can be driven to move up and down; Back timber 7 has been horizontally disposed with convex guide rail and ball screw, ball screw is by the first driven by servomotor being arranged on right-hand member, convex guide rail is provided with slide, the slide back side is installed with nut seat, nut seat is enclosed within the ball screw nut of back timber 7 and fixes connects, when the first driven by servomotor screw mandrel rotates, feed screw nut drives slide left and right horizontal movement on back timber 7; Equipped with the recessed guide rail of vertical direction and ball screw on slide, second servomotor 8 is arranged on slide upper end, the recessed guide rail of slide is provided with main spindle box slide unit, the main spindle box slide unit back side is installed with nut seat, nut seat is enclosed within the ball screw nut on slide and fixes connects, when second servomotor 8 drives screw mandrel to rotate, feed screw nut drives that main spindle box slide unit is upper and lower to move both vertically;Main spindle box slide unit is provided with spindle motor 6, replaceable main spindle box 5 and tool heads 4, replaceable main spindle box 5 is internal vertically disposed power transmission shaft, first main shaft and the second main shaft, replaceable main spindle box 5 is provided with, bottom plate, on, bottom plate is correspondingly arranged on for installing power transmission shaft, the installing hole of the first main shaft and the second main shaft, wherein the installing hole for the first main shaft and the second main shaft exists, bottom plate is correspondingly arranged on multipair, so as the spacing adjusted between the first main shaft and the second main shaft, the upper end of power transmission shaft is connected with the output shaft of spindle motor 6 by shaft coupling, power transmission shaft is provided with a central gear, first main shaft and the second main shaft are respectively equipped with a travelling gear being meshed with above-mentioned central gear, described tool heads 4 includes a roughing heads and a fine grinding head, and it connects with the first main shaft and the second main shaft respectively through cutter clamping device, lathe bed 3 is arranged between two base rail 2, and the side of lathe bed is provided with the cabinet of replaceable main spindle box 5 for holding multiple different size type, and the top of lathe bed 3 is provided with two longitudinal slide rails, slide rail is provided with and vertically moves workbench.
Moreover, it relates to utilize above-mentioned lathe that flat workpiece surface is carried out the application of grinding.
After the present invention adopts above-mentioned lathe, substantially increase working (machining) efficiency and the crudy of surface of the work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the coarse-fine mill Combined machining lathe of the present invention.
Fig. 2 is the clamping workpiece device schematic diagram of the lathe of the present invention.
Wherein have: 1, pedestal; 2, base rail; 3, lathe bed; 4, tool heads; 5, replaceable main spindle box; 6, spindle motor; 7, back timber; 8, the second servomotor; 9, callosity; 10, column; 11, support; 12, hoist cylinder; 13, base plate; 14, square framework; 15, vertical rod; 16, clamp nut; 17, clamp; 18, loading plate; 19, workpiece.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete better embodiment, the present invention is further detailed explanation.
As it is shown in figure 1, a kind of coarse-fine mill Combined machining lathe, it includes pedestal 1, base rail 2, lathe bed 3, column 10, back timber the 7, second servomotor 8, spindle motor 6, replaceable main spindle box 5, tool heads 4, support 11, hoist cylinder 12, callosity 9. Along pedestal 1 bottom even multiple callosity 9, base rail 2 and lathe bed 3 be set be fixedly installed on pedestal 1. Base rail 2 is two closed slides, it is (not shown that same one end of two parallel base guide rails is respectively provided with a servo longitudinal motor, longitudinal direction and Fig. 1 are perpendicular to paper direction), it is respectively provided with a screw mandrel on the top of two parallel base guide rails, one end of screw mandrel is connected with the rotation axle of servo longitudinal motor, the bottom of two columns 10 is respectively connected by slide block is fixing with feed screw nut, longitudinally respectively arranges a rule on the outside of two base rail 2. The side of two columns 10 is respectively provided with column guide rail, back timber 7 is arranged on column guide rail by slide block, a support 11 it is respectively provided with in the outside of two columns, the bottom of support 11 is fixed with reinforcement, each support 11 is fixedly installed a hoist cylinder 12 respectively, the piston rod of hoist cylinder 12 is connected with back timber 7, and back timber 7 can be driven to move up and down. Back timber 7 has been horizontally disposed with convex guide rail and ball screw, ball screw is by the first driven by servomotor being arranged on right-hand member, convex guide rail is provided with slide, the slide back side is installed with nut seat, nut seat is enclosed within the ball screw nut of back timber 7 and fixes connects, when the first driven by servomotor screw mandrel rotates, feed screw nut drives slide left and right horizontal movement on back timber 7.Equipped with the recessed guide rail of vertical direction and ball screw on slide, second servomotor 8 is arranged on slide upper end, the recessed guide rail of slide is provided with main spindle box slide unit, the main spindle box slide unit back side is installed with nut seat, nut seat is enclosed within the ball screw nut on slide and fixes connects, when second servomotor 8 drives screw mandrel to rotate, feed screw nut drives that main spindle box slide unit is upper and lower to move both vertically. main spindle box slide unit is provided with spindle motor 6, replaceable main spindle box 5 and tool heads 4, replaceable main spindle box 5 is internal vertically disposed power transmission shaft, first main shaft and the second main shaft, replaceable main spindle box 5 is provided with, bottom plate, on, bottom plate is correspondingly arranged on for installing power transmission shaft, the installing hole of the first main shaft and the second main shaft, wherein the installing hole for the first main shaft and the second main shaft exists, bottom plate is correspondingly arranged on multipair, so as the spacing adjusted between the first main shaft and the second main shaft, the upper end of power transmission shaft is connected with the output shaft of spindle motor 6 by shaft coupling, power transmission shaft is provided with a central gear, first main shaft and the second main shaft are respectively equipped with a travelling gear being meshed with above-mentioned central gear. described tool heads 4 includes a roughing heads and a fine grinding head, and it connects with the first main shaft and the second main shaft respectively through cutter clamping device. lathe bed 3 is arranged between two base rail 2, and the side of lathe bed is provided with the cabinet of replaceable main spindle box 5 for holding multiple different size type, and the top of lathe bed 3 is provided with two longitudinal slide rails, slide rail is provided with and vertically moves workbench.
The design for the first main shaft and the installing hole of the second main shaft for replaceable main spindle box 5, a kind of preferred scheme is, the concentric circular of the installing hole for power transmission shaft that the center of circle of multiple installing holes is distributed on end plate, so in the spacing adjusted between the first main shaft and the second main shaft in case adjust between two bistriques spacing time, no matter the first main shaft and the second main shaft select to be fixed in which installing hole, the first main shaft can be guaranteed, travelling gear on second main shaft has constant and stable meshing relation with the central gear on power transmission shaft, do not affect power transmission.
For replaceable main spindle box 5, in order to increase the alternative of the spacing between the first main shaft and the second main shaft, lathe is specially equipped with the replaceable main spindle box 5 of multiple different size type, multiple replaceable main spindle boxes 5 are deposited in the cabinet arranged on the side of lathe bed, to meet different work pieces process demands.
During work, flat work pieces clamping is vertically moved on workbench on lathe bed 3, the size of the area of plane according to wanted grinding, select the replaceable main spindle box 5 of suitable dimension, such as the area of plane of wanted grinding is bigger, what then general bistrique diameter selected is bigger, generally should select the first main shaft and the bigger replaceable main spindle box 5 of the second spindle pitch, adjust the spacing between the first main shaft in selected replaceable main spindle box 5 and the second main shaft subsequently, replaceable main spindle box 5 is fixed on the precalculated position on main spindle box slide unit. By adjusting the motion of each guide rail and hoist cylinder, tool heads 4 and flat work pieces are adjusted Working position, be processed process subsequently. At the processing initial stage, roughing heads first contacts surface of the work and is processed, and fine grinding head first avoids finished surface, along with the carrying out of processing, roughing heads is while thick grinding made above, and fine grinding head contacts by the finished surface of roughing heads, by that analogy, the processing of whole surface of the work it is gradually completing.
Preferably, the lathe of the present invention also includes the clamping device for flat work pieces, and clamping device is fixed on and vertically moves workbench. As in figure 2 it is shown, clamping device includes base plate 13, square framework 14, vertical rod 15, clamp nut 16, clamp 17 and loading plate 18. Wherein square framework 14 is fixed on base plate 13, and its four ends have been respectively fixedly connected with vertical rod 15, and the top of vertical rod 15 is provided with external screw thread. Four ends of loading plate 18 are provided with mean for the hole of vertical rod 15 traverse, and the center of loading plate 18 is provided with square central hole. Clamping device includes four clamps 17, and one end of clamp 17 is provided with mean for the hole of vertical rod 15 traverse, and the other end is provided with right-angle notch, in order to block an end of workpiece 19. The external screw thread on clamp nut 16 and vertical rod 15 top screws. During clamping workpiece 19, four holes traverse vertical rods 15 of the end of loading plate 18, loading plate 18 is placed in square framework 14, the hole traverse vertical rod 15 of one end of clamp 17, the right-angle notch of the other end engages with the end of workpiece, then clamp nut 16 is tightened, workpiece 19 can be fixed on clamping device.
Preferably, the right-angle notch of clamp 17 is provided with the anti-skidding protective layer of the such as form such as packing ring, rubber, it is to avoid scratch workpiece and increase fastening force.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.