CN102921898B - Drilling device for drilling double vent holes in middle body sand cores of turbocharger - Google Patents
Drilling device for drilling double vent holes in middle body sand cores of turbocharger Download PDFInfo
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- CN102921898B CN102921898B CN201210451161.3A CN201210451161A CN102921898B CN 102921898 B CN102921898 B CN 102921898B CN 201210451161 A CN201210451161 A CN 201210451161A CN 102921898 B CN102921898 B CN 102921898B
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Abstract
The invention provides a drilling device for drilling double vent holes in middle body sand cores of a turbocharger. Two pen-shaped air drills are arranged on the upper surface at one end of a base seat through a guide track, a straight line rolling bearing, a sliding table, an air drill seat and an air drill seat hole. Air drill bits and air drill air pipes are respectively arranged at two ends of the two pen-shaped air trills. The base seat is also provided with an air cylinder through a base seat connecting block. The sliding table is connected with an air cylinder piston rod connector on the air cylinder through a sliding table connecting block. Air cylinder air pipe joints which are connected with compressed air reversing valves are arrange at both ends of the air cylinder. A jig body and a ladder-shaped locating block are fixedly arranged on the upper surface at the other end of the base seat. The middle body sand cores of the turbocharger are arranged on the upper surface of the ladder-shaped locating block and in the middle of the jig body in a matching mode. Floating pressing plates are arranged on the upper surfaces of two sides of the jig body through pressing plate stand columns, pressing plate cross beams and nuts. The drilling device can drill the two vent holes which are directly communicated to a semi-circular channel in the middle body sand cores of the turbocharger at the same time, and when the vent holes are drilled, the semi-circular channel cannot be broken basically. Therefore, the finished product rate of the vent holes during drilling is greatly improved.
Description
Technical field
The present invention relates to a kind of drilling equipment, particularly a kind of drilling equipment that bores double pore on turbocharger middle body core.
Background technology
The core using in the moulding of casting industry core, most precoated sand cores processed that use.Precoated sand core processed has good manufacturability.But also have shortcoming, its shortcoming is to have pore during the gas forming amount of precoated sand core when pouring cast part can cause foundry goods.For preventing producing pore in foundry goods, all on core, bore steam vent.These steam vents are all with drill bit, to get out after core moulding again.Having a kind of core of turbocharger middle body to have water channel, its water channel in the middle of it is semi-circular channel, and its turnover water end (W.E.) is all established in one plane.Because semi-circular channel smallest cross-sectional size only has 8mm * 6mm, its turnover water end (W.E.) bore steam vent until during semi-circular channel very easily because being subject to the inhomogeneous external force semi-circular channel that fractures.While boring steam vent in the past on turnover water end (W.E.) core print, because the semi-circular channel waste product producing that fractures can reach 40% left and right.
Summary of the invention
The object of this invention is to provide a kind of drilling equipment that bores double pore on turbocharger middle body core.This drilling equipment can be on turbocharger middle body core simultaneously two of successful ground augers until the steam vent of semi-circular channel.And semi-circular channel substantially can not fracture when boring steam vent.Can greatly reduce like this percent defective that turbocharger middle body precoated sand core is bored to steam vent.Bore two steam vents simultaneously and also greatly improved operating efficiency, greatly reduce the casting cost of foundry goods and improve the economic benefit of enterprise.
Technical scheme of the present invention is: a kind of drilling equipment that bores double pore on turbocharger middle body core.Two guide rails are laterally installed side by side on base one end.A linear roller bearing is all housed on every guide rail, and each linear roller bearing rolls and is connected with guide rail respectively.A slide unit is installed on two linear roller bearing tops.Pneumatic drill seat is installed on slide unit, and this pneumatic drill seat screw fastening that is fixed is positioned on slide unit.In the middle of pneumatic drill seat, be provided with two pneumatic drill seat holes.Two form of a stroke or a combination of strokes pneumatic drills are contained in respectively in two pneumatic drill seat holes.Drill jig is all equipped with in two form of a stroke or a combination of strokes pneumatic drill one end, has all clamped pneumatic drill drill bit in two drill jigs.The other end of two form of a stroke or a combination of strokes pneumatic drills is all equipped with pneumatic drill tracheae, and two pneumatic drill tracheaes are all connected with compressed air pumping plant.
Base contiguous block is also installed on base.Cylinder is fixed on base contiguous block.Below slide unit, be fixed with slide unit contiguous block.Cylinder piston rod connector is housed on cylinder, and slide unit contiguous block is connected with cylinder piston rod connector.Cylinder gas-tpe fitting is all equipped with at cylinder two ends, and two cylinder gas-tpe fittings at cylinder two ends are all connected with compressed air reversal valve.Compressed air reversal valve send compressed air to enter in cylinder according to instruction respectively to make cylinder piston rod extended or retracted.
On the base other end, be fixed with clamp body.On clamp body, be fixed with stairstepping locating piece.Should match with the core of drilled steam vent in locus between clamp body and stairstepping locating piece.Above stairstepping locating piece and in the middle of clamp body, coordinate and lay turbocharger middle body core.The riding position of core should make to need to bore two steam vent places all in the face of two form of a stroke or a combination of strokes pneumatic drill drill bits on turbocharger middle body core.The threaded pressing plate column of tool is all installed above clamp body both sides, and pressing plate crossbeam one end is sleeved on a side guide column and is locked by locking nut.The pressing plate crossbeam other end one side has notch, and this notch active card is contained on opposite side pressing plate column and is locked by wing nut.Pressing plate crossbeam middle part is provided with elongated slot, and floating platen is packed in elongated slot by straight pin.Floating platen is pressed on from above on two core prints above core, can make like this two form of a stroke or a combination of strokes pneumatic drills get out two qualified steam vents.
Two described form of a stroke or a combination of strokes pneumatic drills are all selected AT-3170 type form of a stroke or a combination of strokes pneumatic drill.
Operation principle of the present invention and process are: because two brill pore positions of core are all pushed down by floating platen simultaneously, while boring steam vent, on core, be subject to all while uniform stresseds of external force position, in core, semi-circular channel position fractures because being subject to inhomogeneous external force with regard to being difficult for.So just greatly improved the percentage of A-class goods of boring steam vent on core.At core, into and out of water end (W.E.), bore two steam vents respectively simultaneously and also greatly improved operating efficiency.While boring steam vent, first core be arranged in the middle of clamp body and with pressing plate crossbeam, core be fixed on to steam vent to be bored position.Then start two form of a stroke or a combination of strokes pneumatic drill end tracheaes, two form of a stroke or a combination of strokes pneumatic drills are all in running order.By two cylinder gas-tpe fittings, start cylinder afterwards again cylinder piston rod is protracted, when cylinder piston rod drives form of a stroke or a combination of strokes pneumatic drill to protract to core place, two form of a stroke or a combination of strokes pneumatic drills bore steam vent on core.Two exhaust hole drills well rear reversal valve can make cylinder piston rod drive form of a stroke or a combination of strokes pneumatic drill retreat into original position and quit work according to instruction commutation.Now closing two form of a stroke or a combination of strokes pneumatic drill end tracheae air feed also quits work form of a stroke or a combination of strokes pneumatic drill.Repeat the above-mentioned course of work and can on another core, bore steam vent.
Advantage of the present invention has been to provide a kind of drilling equipment that bores double pore on turbocharger middle body core.This drilling equipment can be on the semicircle inlet channel of turbocharger middle body core and water outlet two steam vents of successful ground auger.And inlet channel and water outlet can not fracture when boring steam vent.Can greatly reduce like this percent defective that turbocharger middle body precoated sand core is bored to steam vent.Bore two steam vents simultaneously and also greatly improved operating efficiency, greatly reduce the casting cost of foundry goods and improve the economic benefit of enterprise.
accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
Fig. 2 be Fig. 1 A-A to sectional structure schematic diagram.
Fig. 3 be Fig. 1 B-B to sectional structure schematic diagram.
Fig. 4 is plan structure schematic diagram of the present invention.
In accompanying drawing: 1, slide unit contiguous block, 2, cylinder, 3, base contiguous block, 4, base, 5, guide rail, 6, cylinder piston rod connector, 7, linear roller bearing, 8, slide unit, 9, pneumatic drill drill bit, 10, drill jig, 11, form of a stroke or a combination of strokes pneumatic drill, 12, pneumatic drill seat hole, 13, hold-down screw, 14, pneumatic drill seat, 15, pneumatic drill tracheae, 16, floating platen, 17, pressing plate crossbeam, 18, straight pin, 19, steam vent, 20, cylinder gas-tpe fitting, 21, stairstepping locating piece, 22, core, 23, clamp body, 24, wing nut, 25, locking nut, 26, pressing plate column, 27, alignment pin, 28, core print, 29, notch, 30, elongated slot.
the specific embodiment:
Embodiment is as shown in the FIG. as follows: a kind of drilling equipment that bores double pore on turbocharger middle body core.Two guide rails 5 are laterally installed side by side on base 4 one end.A linear roller bearing 7 is all housed on every guide rail 5, and each linear roller bearing 7 rolls and is connected with guide rail 5 respectively.A slide unit 8 is installed on two linear roller bearing 7 tops.Pneumatic drill seat 14 is installed on slide unit 8, and this pneumatic drill seat 14 is fixed, and screw 13 is fastening to be positioned on slide unit 8.In the middle of pneumatic drill seat 14, be provided with two pneumatic drill seat holes 12.Two form of a stroke or a combination of strokes pneumatic drills 11 are contained in respectively in two pneumatic drill seat holes 12.Two form of a stroke or a combination of strokes pneumatic drill 11 one end are all equipped with in drill jig 10, two drill jigs 10 and have all been clamped pneumatic drill drill bit 9.The other end of two form of a stroke or a combination of strokes pneumatic drills 11 is all equipped with pneumatic drill tracheae 15, two pneumatic drill tracheaes 15 and is all connected with compressed air pumping plant.Base contiguous block 3 is also installed on base 4.Cylinder 2 is fixed on base contiguous block 3.Below slide unit 8, be fixed with slide unit contiguous block 1.Cylinder piston rod connector 6 is housed on cylinder 2, and slide unit contiguous block 1 is connected with cylinder piston rod connector 6.Cylinder gas-tpe fitting 20 is all equipped with at cylinder 2 two ends, and two cylinder gas-tpe fittings 20 at cylinder 2 two ends are all connected with compressed air reversal valve.Compressed air reversal valve send compressed air to enter in cylinder 2 according to instruction respectively to make cylinder piston rod extended or retracted.
On base 4 other ends, be fixed with clamp body 23.On clamp body 23, be fixed with stairstepping locating piece 21.Should match with the core 22 of drilled steam vent 19 in locus between clamp body 23 and stairstepping locating piece 21.Stairstepping locating piece 21 coordinates and lays turbocharger middle body core 22 above and in the middle of clamp body 23.The riding position of core 22 should make to need to bore two steam vent 19 places all in the face of two form of a stroke or a combination of strokes pneumatic drill drill bits 9 on turbocharger middle body core 22.The threaded pressing plate column 26 of tool is all installed above clamp body 23 both sides, and pressing plate crossbeam 17 one end are sleeved on a side guide column 26 and by locking nut 25 and lock.Pressing plate crossbeam 17 other end one sides have notch 29, and these notch 29 active card are contained on opposite side pressing plate column 26 and by wing nut 24 locks.Pressing plate crossbeam 17 middle parts are provided with elongated slot 30, and floating platen 16 is packed in elongated slot 30 by straight pin 18.Floating platen 16 is pressed on from above on core 22 two core prints 28 above, can make like this two form of a stroke or a combination of strokes pneumatic drills 11 get out two qualified steam vents 19.
Two described form of a stroke or a combination of strokes pneumatic drills 11 are all selected AT-3170 type form of a stroke or a combination of strokes pneumatic drill.
Claims (2)
1. a drilling equipment that bores double pore on turbocharger middle body core, it is characterized in that: two guide rails are laterally installed side by side on base one end, a linear roller bearing is all housed on every guide rail, each linear roller bearing rolls and is connected with guide rail respectively, a slide unit is installed on two linear roller bearing tops, pneumatic drill seat is installed on slide unit, this pneumatic drill seat screw fastening that is fixed is positioned on slide unit, in the middle of pneumatic drill seat, be provided with two pneumatic drill seat holes, two form of a stroke or a combination of strokes pneumatic drills are contained in respectively in two pneumatic drill seat holes, drill jig is all equipped with in two form of a stroke or a combination of strokes pneumatic drill one end, in two drill jigs, all clamped pneumatic drill drill bit, the other end of two form of a stroke or a combination of strokes pneumatic drills is all equipped with pneumatic drill tracheae, two pneumatic drill tracheaes are all connected with compressed air pumping plant,
Base contiguous block is also installed on base, cylinder is fixed on base contiguous block, below slide unit, be fixed with slide unit contiguous block, cylinder piston rod connector is housed on cylinder, slide unit contiguous block is connected with cylinder piston rod connector, cylinder gas-tpe fitting is all equipped with at cylinder two ends, and two cylinder gas-tpe fittings at cylinder two ends are all connected with compressed air reversal valve, and compressed air reversal valve send compressed air to enter in cylinder according to instruction respectively to make cylinder piston rod extended or retracted;
On the base other end, be fixed with clamp body, on clamp body, be fixed with stairstepping locating piece, should match with the core of drilled steam vent in locus between clamp body and stairstepping locating piece, above stairstepping locating piece and in the middle of clamp body, coordinate and lay turbocharger middle body core, the riding position of core should make to need to bore two steam vent places all in the face of two form of a stroke or a combination of strokes pneumatic drill drill bits on turbocharger middle body core, the threaded pressing plate column of tool is all installed above clamp body both sides, pressing plate crossbeam one end is sleeved on a side guide column and is locked by locking nut, the pressing plate crossbeam other end one side has notch, this notch active card is contained on opposite side pressing plate column and is locked by wing nut, pressing plate crossbeam middle part is provided with elongated slot, floating platen is packed in elongated slot by straight pin, floating platen is pressed on from above on two core prints above core, can make like this two form of a stroke or a combination of strokes pneumatic drills get out two qualified steam vents.
2. a kind of drilling equipment that bores double pore on turbocharger middle body core according to claim 1, is characterized in that: two described form of a stroke or a combination of strokes pneumatic drills are all selected AT-3170 type form of a stroke or a combination of strokes pneumatic drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451161.3A CN102921898B (en) | 2012-11-12 | 2012-11-12 | Drilling device for drilling double vent holes in middle body sand cores of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451161.3A CN102921898B (en) | 2012-11-12 | 2012-11-12 | Drilling device for drilling double vent holes in middle body sand cores of turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102921898A CN102921898A (en) | 2013-02-13 |
| CN102921898B true CN102921898B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210451161.3A Active CN102921898B (en) | 2012-11-12 | 2012-11-12 | Drilling device for drilling double vent holes in middle body sand cores of turbocharger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109604532A (en) * | 2019-01-31 | 2019-04-12 | 长沙长泰机器人有限公司 | A kind of sand core drilling equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0829014B2 (en) * | 1987-10-02 | 1996-03-27 | 井関農機株式会社 | Walk-behind rice transplanter |
| CN201244870Y (en) * | 2008-06-16 | 2009-05-27 | 天津新伟祥工业有限公司 | Combined drilling tool of cast sand core head drilling machine |
| CN201415335Y (en) * | 2008-11-05 | 2010-03-03 | 国营三五三一厂 | Floating clamping tool specialized for numerical control milling of aluminum alloy component |
| CN201357208Y (en) * | 2009-02-23 | 2009-12-09 | 宁波合力模具科技股份有限公司 | Hole drilling mechanism of sand core vent hole for casting |
| CN202861332U (en) * | 2012-11-12 | 2013-04-10 | 溧阳市科华机械制造有限公司 | Drilling device for drilling double rows of exhausting vents in sand core of intermediate body of turbine pressurizing device |
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| CN102921898A (en) | 2013-02-13 |
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Owner name: KEHUA HOLDINGS CO., LTD. Free format text: FORMER NAME: LIYANG KEHUA MACHINE MANUFACTURE CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 213354 Jiangsu city of Changzhou province Liyang Zhuze Zhen Yu Qiao Town Patentee after: KEHUA HOLDING CO., LTD. Address before: 213354 Jiangsu city of Changzhou province Liyang Zhuze Zhen Yu Qiao Town Patentee before: Liyang Kehua Machine Manufacture Co., Ltd. |