A kind of two-way drilling machine
Technical field
The present invention relates to a kind of rig, particularly relate to a kind of two-way drilling machine.
Background technology
In manufacturing, all need in the manufacture process of many products to implement bore process, and bore process is generally come by drilling machine.Traditional drilling machine is holed by manual operation, and this artificial drilling machine not only operating efficiency is very low, and borehole accuracy is not high, does not meet industrial requirement.Some automatic drilling machines have been there are for this reason, although operating efficiency and borehole accuracy all increase, but once can only bore a hole, and can only from a direction boring, when need of production carries out two-way boring and the product in multiple hole is bored in each direction, efficiency is very low, does not meet the requirement of large-scale production.
Unidirectional boring not only inefficiency, and Precision Machining cannot be carried out to some special pipes, such as counterflow cooling tower sprinkler pipe, because it adopts steel material, through hot galvanizing surface process, unidirectional boring is difficult, counterpart is out-of-level, height decentraction, in use, corrosion-resistant difference, service life is short.
In order to solve the problem, the researcher in industry proposes two-way drilling machine, to improve operating efficiency when need of production carries out two-way boring and machining accuracy.Notification number be CN202715852U patent document discloses a kind of two-way drilling machine, comprise frame, drilling equipment in frame, for the clamping device of clamping work pieces, drilling equipment comprises the rotating shaft of band drill bit, drive the motor that rotating shaft rotates, the rotating shaft of level is by the bearings in frame, and the two ends of rotating shaft are provided with drill bit, and each rotating shaft is all coated with synchronizing wheel, motor output shaft arranges driving wheel, and synchronizing wheel and driving wheel form Synchronous Transmission by Timing Belt; Clamping device comprises the movable frame be centered around around drilling equipment, movable frame is arranged and upwards supports and the upper angle coupling block of clamping work pieces, in the outside of movable frame, the first bounce cylinder being used for this movable frame of translation is set, movable frame is also provided with compacting downwards and the lower angle coupling block of clamping work pieces, the top of lower angle coupling block is provided with the second bounce cylinder controlling lower angle coupling block and move up and down.Said structure have towards different drill bits, can hole together to the position of workpiece different directions.
Separately there is notification number CN102179543B automatic drilling machine, comprise base plate, be fixed on the guide rail on base plate and be arranged on the Workpiece clamping platform on guide rail and be separately positioned on Workpiece clamping platform both sides and the first drilling equipment be fixed on base plate and the second drilling equipment, first drilling equipment and the second drilling equipment comprise the first servomotor, second servomotor and with the first servomotor, the first drill bit that second servomotor is connected, second drill bit, first, second servomotor output is respectively with first, second drill bit one end is connected, first, the second drill bit other end respectively corresponding Workpiece clamping platform also and between workpiece clamping table leaves spacing.Above-mentioned automatic drilling machine, adopts Bidirection hole drilling device, disposablely can complete operation, improve operating efficiency, and precision be high; Utilize draw-gear, can workpiece traction be holed to chisel edge fast and accurately, this reasonable in design, can carry out holing to the batch of tiny workpiece.
Although the two-way drilling machine of above-mentioned two kinds of structures is by arranging relative drill bit, improve operating efficiency and machining accuracy to a certain extent, but the drill bit of above-mentioned equipment is fixedly installed, if workpiece needs many places to punch, then can only by the position of adjustment workpiece, working (machining) efficiency is not high, and if cast workpiece, when adjusting the location of workpiece, easy turning of work piece and the Working position of each round is not lined up, affects the crudy of workpiece.
Summary of the invention
The invention provides a kind of two-way drilling machine, low to solve drilling efficiency in prior art, the problem that workpiece processing quality is not high.
A kind of two-way drilling machine, comprise frame, rack-mounted Bidirection hole drilling device and the clamping device for clamping work pieces, described frame is provided with horizontal guide rail, and described Bidirection hole drilling device arranges at least two covers successively along horizontal guide rail;
Often overlap Bidirection hole drilling device to comprise:
The track base coordinated with horizontal guide rail,
Be fixed on the lead on track base, lead is horizontally disposed and perpendicular with horizontal guide rail,
Transfer with the double threaded screw of driving mechanism on track base,
The movable machine base be simultaneously sleeved on described lead and double threaded screw for a pair, with for driving this to the heterodromous screw thread of movable machine base on described double threaded screw,
Two are arranged on this respectively on movable machine base and the relative drilling machine of drill bit;
Described clamping device comprises:
Be fixed on the vertically-guided post on horizontal guide rail,
The adjusting nut coordinated with vertically-guided male screw,
The vertically-guided cover be flexibly connected with vertically-guided post, vertically-guided cover is taken and is put on adjusting nut,
The lower location-plate be fixedly connected with vertically-guided cover,
The upper location-plate be oppositely arranged with lower location-plate,
The cylinder of location-plate in driving;
Frame is also provided with the pitch adjustment mechanism for adjusting Bidirection hole drilling device position.
The two-way drilling machine of said structure, many cover Bidirection hole drilling devices and pitch adjustment mechanism are set, many covers Bidirection hole drilling device can the many rounds of time processing, adjust Bidirection hole drilling device by pitch adjustment mechanism again, repeatedly process punching, thus when not travelling workpiece, control hole distance can arrange punching more, operating efficiency is high, and the alignment of each round Working position, effectively improve crudy.
During to Workpiece boring, when synchronous motor rotates, drive Double-ended nut to rotate, be arranged on two movable machine bases with drilling machine on Double-ended nut, inwardly uniform motion completes boring simultaneously; Synchronous motor is counter to be reversely rotated, then two are exited with the movable machine base of drilling machine simultaneously.
For adjusting the pitch adjustment mechanism of Bidirection hole drilling device position, this pitch adjustment mechanism version is a lot, consider Adjustment precision and stable, preferably, described pitch adjustment mechanism is lead screw transmission mechanism, comprises rack-mounted screw mandrel and is arranged on the nut that each Bidirection hole drilling device coordinates with screw mandrel.And lead screw transmission mechanism also has the simple advantage of structure.
In order to adjust the position of each Bidirection hole drilling device respectively, improve the range of work of equipment, preferably, described nut is clasp nut.Clasp nut is opened, and can disconnect being in transmission connection of Bidirection hole drilling device and pitch adjustment mechanism, therefore, only can be in transmission connection and want to adjust the Bidirection hole drilling device of position.
Screw mandrel is after the clasp nut opened rotates, again when closedown clasp nut coordinates with screw mandrel, threaded engagement has error, if force to coordinate, easy damaged screw lines, in the service life of reduction equipment, preferably, described Bidirection hole drilling device is provided with and assembles with nut clip the opening-closing clamp closed.During use, need the Bidirection hole drilling device of adjusting position to clamp corresponding nut by opening-closing clamp and move, the Bidirection hole drilling device completing location opens opening-closing clamp, and nut rotates along with screw mandrel, stops transmission.Because nut and screw mandrel keep threaded engagement always, above-mentioned problem can not be caused, effectively can improve equipment life.
In order to improve the position stability of workpiece, improve machining accuracy, preferably, described clamping device between adjacent Bidirection hole drilling device and the two ends of all Bidirection hole drilling devices be respectively provided with one group.
According to the shape of workpiece, can arrange the lower location-plate of different structure, preferably, the edge, top of described lower location-plate is with the locating slot for place work piece.The structure of locating slot according to the Adjusting Shape of processing work, such as, can process round tube, locating slot can be set to V-type groove.
In order to simplify structure, preferably, described drilling machine comprises: be fixed on the drilling cramp pedestal on movable machine base, being arranged on for installing the rig power transmission shaft of drill bit in drilling cramp pedestal, driving the motor of rig power transmission shaft and be sleeved on described rig power transmission shaft tensioner action bars by belt pulley.
In order to the overall structure of optimized device, the position of reasonable Arrangement cylinder, preferably, described horizontal guide rail is provided with parallel two, each clamping device is provided with two described vertically-guided posts, be separately fixed on two horizontal guide rails, between two vertically-guided posts, be fixed for the cylinder seat board installing cylinder.
In order to prevent the dust pollution air produced in boring procedure, preferably, between two drilling machines of each Bidirection hole drilling device, be provided with inlet scoop, described inlet scoop is connected with external dust catcher.
Preferably, the driving mechanism of described double threaded screw is the synchronous motor be in transmission connection by belt pulley and double threaded screw, and described synchronous motor is fixedly connected with movable machine base.
Beneficial effect of the present invention:
Two-way drilling machine of the present invention, by arranging many cover Bidirection hole drilling devices and pitch adjustment mechanism, can not travelling workpiece when, control hole apart from arranging punching more, and operating efficiency is high, and the alignment of each round Working position, effectively improves crudy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of Bidirection hole drilling device of the present invention.
Fig. 3 is the enlarged drawing of part A in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, the two-way drilling machine of the present embodiment, comprise frame 1, rack-mounted Bidirection hole drilling device 2 and the clamping device 3 for clamping work pieces, frame 1 is provided with horizontal guide rail 11, horizontal guide rail 11 is provided with parallel two, along horizontal guide rail 11, Bidirection hole drilling device 2 arranges that two overlap successively.
Bidirection hole drilling device 2 comprises: two track bases 21 coordinated with horizontal guide rail 1 respectively, be fixed on the lead 22 between two track bases 21, lead 22 is horizontally disposed two, and it is perpendicular with horizontal guide rail 11, transfer between two track bases 21 with the double threaded screw 23 of driving mechanism, be sleeved on the movable machine base 24 on lead and double threaded screw for a pair simultaneously, with for driving this to the heterodromous screw thread of movable machine base 24 on double threaded screw 23, namely the direction of rotation for two sections of double threaded screw 23 screw threads installing movable machine base 24 is contrary, two are arranged on this respectively on movable machine base 24 and the relative drilling machine 25 of drill bit.The driving mechanism of double threaded screw 23 is the synchronous motor 210 be in transmission connection by belt pulley and double threaded screw 23, and synchronous motor 210 is fixedly connected with movable machine base 24.Clamping device 3 comprises: two are separately fixed at the vertically-guided post 31 on two horizontal guide rails 11, the adjusting nut 32 coordinated with vertically-guided male screw, the vertically-guided be flexibly connected with vertically-guided post 31 overlaps 33, vertically-guided cover 33 is taken and is put on adjusting nut 32, the 33 lower location-plates 34 be fixedly connected with are overlapped with vertically-guided, the upper location-plate 35 be oppositely arranged with lower location-plate 34, be fixed on for installing the cylinder seat board 37 of cylinder 36 between two vertically-guided posts, upper location-plate 35 is fixed on the clutch end of cylinder 36.Upper location-plate and lower location-plate arranged in a crossed manner, to clamp the workpiece of different size.In the present embodiment, as shown in Figure 3, upper location-plate 35 is provided with the opening 39 of accommodating lower location-plate 34, and when clamping the workpiece of small volume, in upper location-plate 35 decline process, lower location-plate 34 enters opening 39.
Frame 1 is also provided with the pitch adjustment mechanism 4 for adjusting Bidirection hole drilling device 2 position, this pitch adjustment mechanism 4 version is a lot, consider Adjustment precision and stable, in the present embodiment, pitch adjustment mechanism 4 is lead screw transmission mechanism, comprise the screw mandrel 41 that is arranged in frame 1 and be arranged on the nut 42 that each Bidirection hole drilling device 2 coordinates with screw mandrel 41, screw mandrel 41 is driven by servomotor 44.
In order to the position of each Bidirection hole drilling device 2 can be adjusted respectively, the range of work of raising equipment, in the present embodiment, nut 42 is clasp nut 43, clasp nut 43 is opened, and can disconnect being in transmission connection of Bidirection hole drilling device 2 and pitch adjustment mechanism 4, therefore, only can be in transmission connection the position of one of them Bidirection hole drilling device 2, and clasp nut 43 realizes folding by operating grip 45.
In order to improve the position stability of workpiece, improve machining accuracy, in the present embodiment, clamping device 3 is provided with three groups, is separately positioned between adjacent Bidirection hole drilling device 2 and the two ends of all Bidirection hole drilling devices 2.
According to the shape of workpiece, can arrange the lower location-plate 34 of different structure, the edge, top of lower location-plate 34 is with the locating slot 38 for place work piece.The structure of locating slot 38 can according to the Adjusting Shape of processing work, and in the present embodiment, processing round tube, can be set to V-type groove by locating slot 38.
In order to simplify structure, in the present embodiment, drilling machine 25 comprises: be fixed on the drilling cramp pedestal 26 on movable machine base 24, being arranged on for installing the rig power transmission shaft 27 of drill bit in drilling cramp pedestal 26, driving the motor 28 of rig power transmission shaft 27 by belt pulley and being sleeved on rig power transmission shaft 27 tensioner action bars 29.
In order to prevent the dust pollution air produced in boring procedure, in the present embodiment, between two drilling machines of each Bidirection hole drilling device 2, be provided with inlet scoop 5, inlet scoop 5 is connected with external dust catcher (not shown in FIG.).
Also be provided with control device 6, control the opening and closing of each driving mechanism.
The present embodiment course of work:
1, push away tensioner action bars 29, change workpiece required diameter drill bit, stand-by;
2, after workpiece being placed the locating slot 38 of lower location-plate 34, adjusting nut 32 on adjustment vertically-guided post 31, allows work centre line aim at bit central point; Open operated pneumatic valve, upper location-plate 35 is released and workpiece pressing by cylinder 36 under gas pressure;
3, start servomotor 44, turn operating grip 45 closes clasp nut 43, after removable Bidirection hole drilling device 2 to setting size, opens clasp nut 43, stops mobile; Adjust Bidirection hole drilling device successively, after locking, close servomotor 44.
4, after motor 28 starts, drive rig power transmission shaft 27 to rotate by pulley drive, be now arranged on the drill bit low speed rotation of rig power transmission shaft 27 front end;
5, synchronous motor 210 is started, double threaded screw 23 is driven to rotate, under the turning effort of double threaded screw 23, the movable machine base 24 being arranged on lead 22 two starts inwardly to make relative uniform motion, drilling machine 25 on movable machine base 24 starts boring, when workpiece starts to hole, start dust catcher, until complete boring.
6, after having holed, synchronous motor 210 reverses, and drive double threaded screw 23 to do to rotate in the other direction, the movable machine base 24 being arranged on lead 22 two starts to make uniform motion round about, after retreating to desired location, and synchronous motor 210 power-off;
7, shifter cylinder 36, under gas pressure, location-plate 35 unclamps and exits, and is taken out by the workpiece completing boring;
8, repeat above-mentioned operation, work again and again.
In sum, the two-way drilling machine of the present embodiment, by arranging two cover Bidirection hole drilling devices 2 and pitch adjustment mechanism 4, can not travelling workpiece when, control hole apart from arranging punching more, and operating efficiency is high, and each round Working position alignment, effectively improve crudy.