The combination numerically controlled machine tool
Technical field
The utility model relates to a kind of combination numerically controlled machine tool.
Background technology
The most of universal machine tools that adopt of the used lathe of existing machinery factory, boring machine, universal numerical control lathe are processed the pump housing, valve body, casing, and the processing method of these a few class lathes can only be carried out the processing that multiple clamping is finished workpiece with unidirectional processing method.General workpiece need to machine by clamping more than three times, is difficult to guarantee in precision and axiality, especially is difficult to guarantee angular error and the size Control of secondary clamping in the interior seal processing to gate valve body.Yet existing gate valve plate can't be realized the property under unified central planning of product, and the way that can only lean on a valve body to join a valve plate is carried out the assembling of product.But also there is the angular deviation of valve body internal taper.Sealing to product is relatively poor, and production difficulty is higher, and efficient is lower.
The utility model content
Technical problem to be solved in the utility model provides a kind of combination numerically controlled machine tool, by making up the adjustable numerically controlled machine tool unit of a plurality of radiuss of clean-up, has enlarged the scope of application of this equipment, and machining accuracy is better, and production efficiency is higher.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the combination numerically controlled machine tool, comprise workbench and four numerically controlled machine tool unit, described workbench is square, described four numerically controlled machine tool unit are oppositely arranged according to four limits of described workbench, described numerically controlled machine tool unit comprises support, head of a bed holder, the first ball screw and the first ball screw holder, described the first ball screw holder is fixed on the described support, described head of a bed holder is provided with main shaft, the head of described main shaft is provided with body of tool bit, the front end of described body of tool bit is provided with carriage saddle, the front end of described body of tool bit is provided with a cutter head slide plate that can move radially, described carriage saddle is fixed on the described cutter head slide plate, and described cutter head slide plate is driven by the cutter head slide board drive device.
Described cutter head slide board drive device comprises rack shaft, bevel gear, slide plate tooth bar and rack shaft feed drive unit, described rack shaft is sheathed on the described main shaft, described bevel gear is fixed in the described body of tool bit, described slide plate tooth bar radially moving direction is fixed in the back side of described cutter head slide plate, the front end tooth-strip part of described rack shaft and the engagement of described bevel gear, the engagement of described bevel gear and described slide plate tooth bar, described rack shaft by described rack shaft feed drive unit drive into to.
Described rack shaft feed drive unit comprises the second ball screw, the second ball screw nut seat, the second ball screw holder and contiguous block, described the second ball screw holder is fixed in the rear end of described head of a bed holder, described contiguous block is fixed on described the second ball screw nut seat, be provided with the rack shaft bearing in the described contiguous block, an end of described rack shaft is supported on the described rack shaft bearing.
This lathe comprises that also the head of a bed moves gliding mass, and described head of a bed holder is fixed in the described head of a bed and moves on the gliding mass, and described the first ball screw directly drives the described head of a bed and moves gliding mass.
This lathe also comprises the cutter head bearing, and described cutter head bearing is fixed on the described mobile support gliding mass, and described mobile support gliding mass is provided with the cutter head spring bearing, and described body of tool bit is supported on the described cutter head spring bearing.
Have at least described the first ball screw holder and the described support of the numerically controlled machine tool unit of pair of opposing to relatively rotate in described four numerically controlled machine tool unit.
Described support is provided with center positioning hole, is evenly equipped with some mounting holes on the circumference centered by described center positioning hole.
The utility model by making up the adjustable numerically controlled machine tool unit of a plurality of radiuss of clean-up, has enlarged the scope of application of this equipment owing to having adopted technique scheme, and machining accuracy is better, and production efficiency is higher.
Description of drawings
Fig. 1 is the structural representation of the utility model combination numerically controlled machine tool
Fig. 2 is the structural representation of numerically controlled machine tool unit
Fig. 3 is the structural representation of tool bit part among Fig. 2
Fig. 4 is the top view of support
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.
Figure 1 shows that the utility model combination numerically controlled machine tool, comprise workbench 11 and four numerically controlled machine tool unit, described workbench 11 is square, described four numerically controlled machine tool unit are oppositely arranged according to four limits of described workbench 11, such as Fig. 2, shown in Figure 3, described numerically controlled machine tool unit comprises support 1, head of a bed holder 2, the first ball screw 4 and the first ball screw holder 3, described the first ball screw holder 3 is fixed on the described support 1, described head of a bed holder 2 is provided with main shaft 5, the head of described main shaft 5 is provided with body of tool bit 6, the front end of described body of tool bit 6 is provided with carriage saddle 61, the front end of described body of tool bit 6 is provided with a cutter head slide plate 62 that can move radially, described carriage saddle 61 is fixed on the described cutter head slide plate 62, and described cutter head slide plate 62 is driven by the cutter head slide board drive device.
Described cutter head slide board drive device comprises rack shaft 71, three bevel gears 72, slide plate tooth bar 73 and rack shaft feed drive units, described rack shaft 71 is sheathed on the described main shaft 5, three bevel gears 72 are fixed in side by side in the described body of tool bit 6, described slide plate tooth bar 73 radially moving direction is fixed in the back side of described cutter head slide plate 62, the front end tooth-strip part of described rack shaft 71 and 72 engagements of described bevel gear, described bevel gear 72 and described slide plate tooth bar 73 engagements, described rack shaft 71 by described rack shaft feed drive unit drive into to.
Described rack shaft feed drive unit comprises the second ball screw 81, the second ball screw nut seat 82, the second ball screw holder 83 and contiguous block 84, described the second ball screw holder 83 is fixed in the rear end of described head of a bed holder 2, described contiguous block 84 is fixed on described the second ball screw nut seat 82, be provided with rack shaft bearing 85 in the described contiguous block 84, an end of described rack shaft is supported on the described rack shaft bearing 85.
This lathe comprises that also the head of a bed moves gliding mass 9, and described head of a bed holder 2 is fixed in the described head of a bed and moves on the gliding mass 9, and described the first ball screw directly drives the described head of a bed and moves gliding mass 9.This lathe also comprises cutter head bearing 63, and described cutter head bearing 63 is fixed on the described mobile support gliding mass 9, and described cutter head bearing 63 is provided with cutter head spring bearing 64, and described body of tool bit 6 is supported on the described cutter head spring bearing 64.
Have at least the described first ball screw holder 3 of the numerically controlled machine tool unit of pair of opposing can relatively rotate with described support 1 in described four numerically controlled machine tool unit.As shown in Figure 4, described support is provided with center positioning hole 12, is evenly equipped with some mounting holes 13 on the circumference centered by described center positioning hole 12.The angle adjustment scope is spent to 20 degree 0, thereby can carry out the adjustable processing of two-sided angle.
The utility model combination numerically controlled machine tool is comprised of four lathe unit, can simultaneously processing of four sides under the control of eight axle coordinated control systems.Can carry out disposable machining to the four-way pipe fitting flange.
The utility model combination numerically controlled machine tool effectively guarantees the axiality of product to Realization of Product Full-numerical-control machining control, and product has been implemented disposable multi-faceted cooked mode.The general pipeline pump housing has two-way mounting flange and motor mounting flange three-dimensional processing request, and general lathe all carries out No. three clamping processing, and this lathe only needs clamped one time to machine, and the processing of valve body also is like this.When quality promotes, also improve operating efficiency, but also can a people control many lathes, employee's labor intensity has been reduced greatly, because adopt Full-numerical-control processing, do not needed the employee to control from the beginning to the end.What this lathe also had more advantage to seal tapering processing in the gate valve body is that the seal processing of valve body is once finished, effective guarantee same angle and the size Control of seal tapering, can realize the property under unified central planning of valve body and valve plate fully.
The utility model combination numerically controlled machine tool is widely used in the processing of the various pump housings, valve body, motor case etc.Adopt the digital control system programming Control to carry out the machining of various workpiece, workpiece is disposable to be machined thereby make.Workpiece is carried out the disposable target that machines and the control on the Product Precision, solved the trouble of original repeatedly processing and repeatedly processed the trueness error that produces.