CN2125477U

CN2125477U - Driving mechanism for double shaft double tool carrier of digit controlled lathe

Info

Publication number: CN2125477U
Application number: CN 92225975
Authority: CN
Inventors: 杨日明
Original assignee: Yangtie Factory Co ltd
Current assignee: Yangtie Factory Co ltd
Priority date: 1992-06-30
Filing date: 1992-06-30
Publication date: 1992-12-23

Abstract

The utility model relates to a driving mechanism for the opposite double tool carriers with double main shafts of a digital controlled lathe. The two ends of the guide way of a lathe table are respectively provided with a main shaft seat and an auxiliary main shaft seat, each main shaft seat is provided with a chuck, and the auxiliary main shaft seat can be shifted axially (longitudinally) as a Z shape. A tool carrier and an auxiliary tool carrier are arranged on both sides of each main shaft seat respectively, so that the tool carriers can be shifted longitudinally, and tools can be advanced and retracted transversely. The utility model can be used for turning two workpieces simultaneously or for turning the same one workpiece for more than two times successively without interruption, and accordingly, the productive efficiency can be improved.

Description

Driving mechanism for double shaft double tool carrier of digit controlled lathe

The utility model relates to a kind of turning processing equipment, particularly relates to a kind of CNC(computer mumerical control numerical controller with dual machining function) the two main shaft double-pole frame transmission mechanisms of lathe subtend.

See also shown in Figure 1, the lathe or the CNC lathe of general traditional type, but the tailstock 4 that its longitudinal sliding motion that mainly is provided with nothing more than the spindle drum 2 that is included in installing on its platform 1, position, spindle drum 2 opposite end is shifted, and the knife rest 5 of a side of closed slide center line setting etc.; The general chuck 3 that on the termination of main shaft, is equiped with, for the clamping turning of workpiece, and tailstock 4 can peak at the tail end of workpiece, the swing when preventing workpiece turning, and improve the workpiece turning accuracy, knife rest 5 can be done the feeding of vertical, horizontal; Therefore, can recognize easily that thus present widely used lathe all belongs to single-tool holder, the pattern of single main shaft, add man-hour so can envision the turning of doing more than the secondary when a workpiece desire, no matter be tradition or CNC lathe, please cooperate Fig. 2, shown in 3, workpiece 6 all need add man-hour as both sides, must process earlier on one side, treat completion of processing on one side, workpiece 6 is changed sides is folded in turning processing on the chuck 3 again, therefore, in imposing different turneries, workpiece 6 must be changed again and again, lose time so incessantly, and every replacing once, also need its accuracy of calibration again, prevent the inaccurate of turning accuracy,, the precision of workpiece is also had bad influence so on the production efficiency of integral body, can't improve.

Main purpose of the present utility model provides the two main shaft double-pole frame transmission mechanisms of a kind of numerically controlled lathe subtend, be that bed platform one end at lathe is provided with spindle drum, secondary spindle drum is set on the guide shaft of its opposite end, and respectively be provided with knife rest at its dual-side, by above-mentioned composite construction, process simultaneously or secondary turning processing and two workpiece are processed simultaneously at two parts of a workpiece, to enhance productivity and the machining accuracy of workpiece.

The purpose of this utility model reaches as follows:

The two main shaft double-pole frame transmission mechanisms of a kind of numerically controlled lathe subtend, its platform is provided with guide rail, and guide rail central authorities are provided with vertical breach, the guide rail bottom is provided with leading screw, be installed with spindle drum on guide rail, the spindle drum side disposes one group of knife rest, is equiped with chuck at the front end of spindle drum; The bed platform guide rail of the relative other end of described spindle drum is provided with secondary spindle drum, and itself and spindle drum are positioned on the same center line, and its termination also is provided with chuck; Secondary spindle drum bottom is fixed on the pedestal, and the bottom of pedestal bridges versatilely on described guide rail, and is bolted on the described leading screw, and the outer end of leading screw connects the servo motor that the described secondary spindle drum of control is done length travel;

Be provided with secondary knife rest at described secondary spindle drum side with respect to described knife rest, described knife rest, the base of secondary knife rest is cross-placed on respectively on first guide rail of parallel described guide rail, be spirally connected respectively and be hubbed on first of the first guide rail bottom, second leading screw, and connect the servo motor that control knife rest and secondary knife rest are made vertical shift respectively in the outer end, at described knife rest, also be respectively equipped with rail groove on the lateral center of secondary tool rest bracket end face, and in rail groove, be pivoted with and described knife rest, secondary knife rest be spirally connected the 3rd, the 4th leading screw is the 3rd, the 4th leading screw termination connects the described knife rest of control respectively, secondary knife rest is made the servo motor of lateral displacement.

The purpose of this utility model can also following mode reach: the numerical controller that is provided with secondary spindle drum of control and described knife rest, secondary knife rest feeding on described bed platform.

Below by most preferred embodiment and accompanying drawing the two main shaft double-pole frame transmission mechanisms of CNC lathe subtend of the present utility model are elaborated, in the accompanying drawing:

Fig. 1 is the schematic appearance of CNC lathe in the past;

Fig. 2, the 3rd, the turning processing schematic diagram of single main shaft single-tool holder in the past;

Fig. 4 is the schematic perspective view of the utility model preferred embodiment;

Fig. 5 is the schematic top plan view of the utility model preferred embodiment;

Fig. 6, the 7th, the above view of Vehicle Processing continuously of the workpiece secondary of the utility model preferred embodiment;

Fig. 8 is the view that two workpiece of the utility model preferred embodiment are processed simultaneously.

Please cooperate and consult shown in Fig. 4,5, the two main shaft double-pole frame transmission mechanisms of the utility model numerically controlled lathe subtend comprise members such as a platform 10, spindle drum 20, knife rest 30, secondary spindle drum 40, secondary knife rest 50.

Bed platform 10 with generally in the past the bed platform construct identical, which is provided with first guide rail 11 of guide rail 11 and side thereof '; 11 central authorities are provided with breach 111 at guide rail, are equipped with the leading screw 112 of parallel longitudinal breach 111 by its end, and its front end is hubbed on the thrust shaft block 12, and the other end is connected on the servo motor 13, and bed platform 10 outer rims are covered with protective cover 14; First guide rail 11 ' be is parallel to above-mentioned guide rail 11 and establishes, its central authorities also longitudinally be provided with breach 111 ', wherein also sheathed be bolted with the symmetry first leading screw 112 ', second leading screw 113 ', and respectively be hubbed at symmetrically on the

thrust shaft block

15,16, and it respectively is connected in first and

second servo motor

17,18.

Spindle drum 20 is fixed at guide rail 11 front ends of a platform 10, is pivoted with main shaft (not shown) in it, and is driven running, is equiped with chuck 21 at its front end, for inserting and putting of workpiece; Spindle drum 20 is with structure is same in the past.

Knife rest 30 is arranged on the base 31, base 31 end face both sides are respectively equipped with rail groove 311, rabbet slippages for the projection 301 that extend both sides, knife rest 30 bottom, knife rest 30 bottoms are bolted on the 3rd leading screw 302 that is pivoted on base 31 middle positions, the 3rd leading screw 302 also is connected on the 3rd servo motor 32, do the X axis displacement of (laterally) for knife rest 30, the bottom of base 31 be bolted in first guide rail 111 ' first leading screw 112 ' on, can provide knife rest 30 to do the Z displacement of axial (vertically) by the control of first servo motor 17.

Secondary spindle drum 40 bottoms are fixed on the pedestal 41, it is relative with spindle drum 20 and establish, and be to be positioned on the same center line, the bottom of pedestal 41 bridges also movable slippage on guide rail 11, and be bolted on the aforesaid reel 112, so that secondary spindle drum 40 can be done vertically (being that Z is axial) displacement, and also be provided with chuck 42 thereon, chuck 21 subtends of itself and spindle drum 20 and establishing.

The structure and the aforesaid knife rest 30 of secondary knife rest 50 are identical, be installed on the base 51, and be provided with the 4th leading screw 501, the 4th servo motor 52, so that being provided, secondary knife rest 50 does the displacement of X axis, the bottom of base 51 be bolted in second leading screw 113 ' on, by the control of second servo motor 18, provide secondary knife rest 50 to do the Z displacement of axial (vertically).Structural feature of the present utility model and advantage are described as follows:

See also Fig. 6, shown in 7, spindle drum 20 is identical with general traditional C NC lathe, be fixing and can not move, if all desiring to impose turning, the both sides of a workpiece 60 add man-hour, be earlier one distolateral 601 to be folded on the chuck 21 of spindle drum 20, then, face shaping according to its desire processing, in the size input value controller (not shown), and then according to driven by program knife rest 30 action along X, Z axial advancement and workpiece 60 is inserted and put distolateral 602 impose turning and process, treat distolateral 602 machine after (as shown in Figure 6), and former distolateral 601 desiring to impose and add man-hour of being inserted and put, then advance according to the secondary spindle drum 40 of driven by program and make its chuck 42 insert and put workpiece 60 completion of processing distolateral 602, then, drive secondary knife rest 50 another distolateral 601 is imposed processing (as shown in Figure 7); Therefore, can avoid workpiece 60 in the process of secondary turning processing, to take out the inconvenience that turning accuracy brought of changing sides again and recalibrating workpiece; Secondly, see also shown in Figure 8, the utility model also can be processed at two workpiece simultaneously, be on spindle drum 20 and secondary spindle drum 40, to insert and put an identical workpiece 60 simultaneously, and knife rest 30, secondary knife rest 50 are also set with identical feeding path, and workpiece 60 is imposed identical turning processing.

Advantage of the present utility model is as follows:

Main shaft of the present utility model is the design of adopting the double end subtend, its knife rest is positioned at on one side, and also take the design of subtend, so after a distolateral completion of processing of working substance, man-hour is wanted to add in another distolateral or other position, can directly change the position of its clamping, and give feeding processing by the knife rest that sets, so, in the process of whole turning processing, not only can save the time that workpiece is changed sides, also can avoid because of the sandwiched calibration of again making precision of changing sides; And the utility model can impose identical turning processing for two workpiece simultaneously, therefore, once just can process simultaneously on same bed platform and obtain two finished products, and its production efficiency is also relatively improved.

In sum, the utility model mainly is at the bed platform two spindle drums and two knife rests to be set, can process simultaneously two parts of a workpiece, or simultaneously to two workpiece processing, to reach high efficiency prouctiveness.

Claims

1, the two main shaft double-pole frame transmission mechanisms of a kind of numerically controlled lathe subtend, its platform is provided with guide rail, and guide rail central authorities are provided with vertical breach, the guide rail bottom is provided with leading screw, be installed with spindle drum on guide rail, the spindle drum side disposes one group of knife rest, is equiped with chuck at the front end of spindle drum; It is characterized in that: the bed platform guide rail of the relative other end of spindle drum is provided with secondary spindle drum, and itself and spindle drum are positioned on the same center line, and its termination also is provided with chuck; Secondary spindle drum bottom is fixed on the pedestal, and the bottom of pedestal bridges versatilely on described guide rail, and is bolted on the described leading screw, and the outer end of leading screw connects the servo motor that the described secondary spindle drum of control is done length travel;

2, according to the two main shaft double-pole frame transmission mechanisms of the described a kind of numerically controlled lathe subtend of claim 1, it is characterized in that: the numerical controller that on described bed platform, is provided with secondary spindle drum of control and described knife rest, secondary knife rest feeding.