A kind of composite power head device
Technical field
The present invention relates to a kind of composite power head device,, specifically relate to a kind of being applied to the composite power head device of managing or tubular body is holed and spot-facing is processed according to embodiments of the invention.
Background technology
In commercial production, the application of boring spot-facing processing is more extensive, such as in the boiler for producing process of boiler industry, need hole to header tube, and then spot-facing processing is carried out in the hole of drilling moulding again.But in order to satisfy the requirement of assembly precision; Comprise that the parts to header tube bore being processed with than higher technological requirement of spot-facing; Especially the fineness and the spot-facing degree of depth to boring has higher technological requirement, and expectation is holed and spot-facing two procedures institute moulding hole has than higher axiality.Therefore, must accurately control the Drilling Operations parameter and the spot-facing degree of depth in when boring, to realize aforementioned requirement.
Present process equipment generally adopts hydraulic feed and fluid motor-driven main shaft or directly uses the motor driving main shaft, can not realize the accurate coupling of the feed speed and the speed of mainshaft, can't realize the stepless speed regulation of speed, and the fineness that machines metapore is relatively poor; In addition, unit head generally also separates with anchor clamps, does not perhaps dispose anchor clamps, the anchor clamps self contained function, and positioning accuracy is relatively poor.Adopt separately the unit head cutter of leading screw feeding with respect to state self-adaption scarce capacities such as the bending of workpiece, distortion, skews.When the motion reference point distance of cutting starting point and the unit head of cutter on workpiece is big, can form the long arm of force that trembles, the machining accuracy and the fineness in hole all there is adverse effect.Moreover, dispose in the equipment of many main shafts, when spindle pitch and technological requirement depart from, the very loaded down with trivial details inconvenience of adjustment means.
Summary of the invention
Therefore; The present invention can't accurately be mated in order to overcome the existing power head device feed speed and the speed of mainshaft; And the defective of pore-forming low precision provides a kind of and can make the accurately power head device of coupling of the feed speed and the speed of mainshaft, and this power head device hole precision is high.
The present invention adopts following technical scheme:
This invents composite power head device, comprising:
The worker advances elevating mechanism, comprises the first leading screw screw pair of vertical setting and is installed on the lifting motor that this leading screw screw pair upper end is used to drive its first leading screw;
Main shaft drives in spindle motor, and the bottom is equipped with cutter, and is installed on the secondary nut seat of said leading screw screw through attaching parts;
Horizontal top-pushing mechanism contains the ram and first slide carriage that is connected with this ram through horizontally disposed line slideway that advance the elevating mechanism carrier as the worker;
Cooling device is used for the cooling of said cutter;
Fast lifting mechanism, drive end are connected in said first slide carriage;
Wherein, said worker advances lifting motor and drives in digital control system with spindle motor and advance the rising or falling speed of lifting motor and the rotating speed of spindle motor with related worker, and said cutter is drill bit and the coaxial compound tool that is composited of the countersink that is positioned at the drill bit root.
The precision of composite power head device according to technical scheme of the present invention for guaranteeing to process; At first be provided with fast lifting mechanism; Its drive end is connected in said first slide carriage, through the rapid feed of fast lifting device, not only can practice thrift man-hour so; And well remedied the problem that the worker advances the elevating mechanism insufficient rigidity, guaranteed the precision of processing.And the realization of fast lifting mechanism is to realize that very easily the cost that is increased is not high based on theory of mechanics.Further, advance the associated driving of lifting motor and spindle motor, be used to solve the problem of both speeds match, guarantee that the worker advances the coupling of cutting speed of feed speed and the spindle motor of lifting motor, can further guarantee the precision of processing through the worker.And cutter adopts drill bit and the coaxial compound tool that is composited of countersink that is positioned at the drill bit root integrates boring, spot-facing; Guaranteed the axiality of machining tool under machining state; Can improve the precision in moulding hole greatly; And countersink is compound to the length that the drill bit root can reduce cantilever, improves the rigidity of drill bit, and makes machining accuracy to have a good guarantee.
Above-mentioned composite power head device, said cooling device are the cooling device with two shower nozzles, and one of them shower nozzle is used for the cooling of drill bit, and another shower nozzle is used for the cooling of countersink.
Above-mentioned composite power head device, said horizontal top-pushing mechanism is provided with retaining mechanism.
Above-mentioned composite power head device, the driving link of said horizontal top-pushing mechanism are to be parallel to the second screw lead screw pair that said line slideway is provided with.
Above-mentioned composite power head device, said retaining mechanism are the latch segment that is arranged on the said horizontal guide rail.
Above-mentioned composite power head device, said main shaft are two or three, and when being two, one of them fixed-site, another is installed through the spacing guiding mechanism between two main shafts; When main shaft is three, middle fixed-site, two are provided with and are used for and the main shaft of this fixed-site spacing guiding mechanism apart from adjustment in addition.
Above-mentioned composite power head device also is provided with and measures fixed main shaft and the dip stick that movable spindle pitch leaves, and is connected in the read head of dip stick output, and the display that is connected in the read head output.
Above-mentioned composite power head device, said first slide carriage bottom is provided with the clamp head of clamping work pieces.
Above-mentioned composite power head device, the base plate of said clamp head is equipped with cushion block through the releasable connection part.
Above-mentioned composite power head device, said clamp head is provided with the baffle plate of semi-surrounding Working position.
Description of drawings
Below in conjunction with Figure of description technical scheme of the present invention is detailed, makes those skilled in the art understand the present invention more specifically, wherein:
Fig. 1 is the main TV structure sketch map according to a kind of composite power head device of technical scheme of the present invention.
Fig. 2 is corresponding to the plan structure sketch map of the right-hand part of composite power head device shown in Fig. 1.
Fig. 3 is a main shaft arrangement sketch map.
Among the figure: 1, the worker advances lifting motor, and 2, shaft coupling, 3, motor cabinet, 4, bearing, 5, first leading screw, 6, nut seat, 7, ram; 8, ram slide block, 9, line slideway, 10, second leading screw, 11, latch segment, 12, hydraulic cylinder piston rod, 13, holder; 14, display, 15, first slide carriage, 16, clamp head, 17, gusset, 18, anchor clamps slide carriage slide block, 19, cushion block; 20, cooling device, 21, the cooling device holder, 22, main spindle box, 23, ring flange, 24, reduction box, 25, the unit head slide carriage; 26, spindle motor, 27, column and rectangular guideway, 28, baffle plate, 29, handwheel, 30, spacing adjustment lead screw pair, 31, spacing adjustment nut seat.
The specific embodiment
Composite power head device with reference to shown in the Figure of description 1 comprises:
The worker advances elevating mechanism, comprises the first leading screw screw pair of vertical setting and is installed on the lifting motor that this leading screw screw pair upper end is used to drive its first leading screw 5;
Main shaft drives in spindle motor 26, and the bottom is equipped with cutter, and is installed on the secondary nut seat 6 of said leading screw screw through attaching parts;
Horizontal top-pushing mechanism contains as the worker and advances the ram 7 of elevating mechanism carrier and first slide carriage 15 that is connected with this ram through horizontally disposed line slideway;
Cooling device 22 is used for the cooling of said cutter;
Fast lifting mechanism, drive end are connected in said first slide carriage;
Wherein, said worker advances lifting motor and drives in digital control system with spindle motor and advance the rising or falling speed of lifting motor and the rotating speed of spindle motor with related worker, and said cutter is drill bit and the coaxial compound tool that is composited of the countersink that is positioned at the drill bit root.
The worker advances elevating mechanism, main shaft, horizontal top-pushing mechanism and cooling device available dynamic head unit all to be contained, and certainly, said main shaft is arranged in the main spindle box 22 more, and main shaft also connects through synchronous band or reduction box 24 usually, to obtain proper speed.
About fast lifting mechanism; To a certain extent, its up-down required precision is not high, can adopt basically the mechanism that can realize going up and down so; Such as the screw lead screw pair; Hydraulic cylinder or pneumatic linear actuator, shown in Fig. 1 right side is the structure that adopts hydraulic cylinder to connect, the piston rod 12 of hydraulic cylinder is connected on first slide carriage through holder 13.
About said attaching parts, be not meant independent a certain concrete parts, but the virtual component of introducing in order to reflect being synchronized with the movement (except that the rotation of main shaft) relation of main shaft and nut seat; As shown in Figure 1; Said in this example attaching parts can be that main spindle box is packed on the unit head slide carriage 25, and the unit head slide carriage is connected on the nut seat, also can be at additional ram 7; Ram 7 and unit head slide carriage one; And the structure that ram 7 is connected with nut seat, in order to reach the said purpose that is synchronized with the movement, those skilled in the art can also adopt other version.
Further, in this programme, after the basic structure of having understood above-mentioned composite power head, can select or make up following technological means:
Said cooling device is the cooling device with two shower nozzles; One of them shower nozzle is used for the cooling of drill bit; Another shower nozzle is used for the cooling of countersink, can improve cooling effect and adaptability to cutter, and the position of avoiding in process, adjusting cooling spray continually guarantees cooling effect.Nature; Have in the feed motion form of device this; Cooling device is normally with cutter synchro-feed to be cooled, and therefore, those skilled in the art also expects easily; Cooling device will be installed on through cooling device holder 21 can be with the cutter synchro-feed but on the parts that do not rotate, such as 22 bottoms of the main spindle box in this programme.
Preferably, said horizontal top-pushing mechanism is provided with retaining mechanism, so that in pore forming process, guarantee cutter positional stability in the horizontal direction, and then the axial runout degree of assurance hole is in setting range.
Further, in order to obtain higher transmission accuracy, the driving link of said horizontal top-pushing mechanism is to be parallel to the second screw lead screw pair that said line slideway is provided with.Leading screw screw pair is the preferred structure in the many rectilinear motion pairs of this programme, and transmission accuracy is high, is beneficial to obtain the accurate initial alignment of drill bit.
Said retaining mechanism is the latch segment that is arranged on the said horizontal guide rail; Latch segment is a present guideway retaining mechanism commonly used; Latch segment has the block that branch occupy the guide rail both sides; And being formed with the hydraulic cavities of driving block respectively perpendicular to guide rail side direction operation, locking is easy to control and reliable lock.Locking about moving component; A variety of selections are arranged in fact; Any moving part in these parts all can be used as the object of locking, and according to theory of mechanics, the arbitrary movable link in transmission mechanism or the kinematic pair is locked; All can limit the activity of transmission mechanism and kinematic pair, those skilled in the art can reference.
A kind of selection, with reference to Figure of description 3, in order to improve pore-forming efficiency, said main shaft is two or three, and when being two, one of them fixed-site, another is installed through the spacing guiding mechanism between two main shafts; When main shaft is three, middle fixed-site, two are provided with and are used for and the main shaft of this fixed-site spacing guiding mechanism apart from adjustment in addition.As previously mentioned, relate to the straight line adjustment, the preferred screw lead screw pair of this programme; Certainly, here, said adjustment is not frequently carried out; So preferably adopt the structure of artificial adjustment, such as handwheel 29 is installed, simultaneously on the leading screw of correspondence; In order to guarantee stability of structure, need on the spacing guiding mechanism, locking device be set, set-up mode can be selected aforesaid general principle.Simplify relatively, the sliding pair that said spacing guiding mechanism can also adopt axis hole simple in structure, with low cost to cooperate also can adopt track secondary.
Further; In order to provide reference, this device can also be provided with measurement fixed main shaft and the dip stick that movable spindle pitch leaves, be connected in the read head of dip stick output for accurately adjusting; And the display 14 that is connected in the read head output, the workman can have a reference intuitively.
For the ease of the control of location and motion, said first slide carriage bottom is provided with the clamp head 16 of clamping work pieces.
Preferably; The base plate of said clamp head is equipped with cushion block 19 through the releasable connection part, and cushion block can be changed as required so, with the position of adjustment pressure head lower plane; Adapting to the different length of cutter, and can realize the adaptation function of cutter to surface of the work.
In order to prevent that chip and cooling fluid from splashing everywhere, said clamp head is provided with the baffle plate 28 of semi-surrounding Working position, and baffle plate can also be assisted the cut-out smear metal.