CN101502888B - Drill bushing structure of numerical control deep-hole drilling machine - Google Patents
Drill bushing structure of numerical control deep-hole drilling machine Download PDFInfo
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- CN101502888B CN101502888B CN2009100254505A CN200910025450A CN101502888B CN 101502888 B CN101502888 B CN 101502888B CN 2009100254505 A CN2009100254505 A CN 2009100254505A CN 200910025450 A CN200910025450 A CN 200910025450A CN 101502888 B CN101502888 B CN 101502888B
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- seat
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- deep hole
- drill
- revolving sleeve
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Abstract
The invention relates to a drill bush structure of NC deep hole drilling machine, which comprises a left bearing sleeve and an oil sealing seat fixed on a housing seat from left to right at intervals. The left bearing sleeve is internally connected with a rotary sleeve through a bearing device in a rotary way; a rotary cap is fixed on the left end part of the rotary sleeve; the rotary sleeve is internally connected with a moving sleeve in a sliding way; a compression spring is arranged between the moving sleeve and the rotary sleeve; an internal hole on the left section of the moving sleeve is matched with a guide sleeve in an interference way. The oil sealing seat is internally connected with a support sleeve in a rotary way; the internal hole of the moving sleeve is internally provided with a deep hole drill; a clearance exists between the external wall of the deep hole drill and the hole wall of the moving sleeve; the left end of the deep hole drill extends out of the guide sleeve and the right end extends out of the support sleeve; the deep hole drill is closely interconnected with the guide sleeve and the support sleeve; an oil baffle is fixed on the left end of the support sleeve and an oil baffle disc is fixed on the deep hole drill between the left bearing sleeve and the oil sealing seat. The invention can achieve high linearity and low roughness of hole processing, reliable sealing and no leakage.
Description
Technical field
The present invention relates to a kind of deep hole drill and the time be used for doing the drill bushing structure of the NC deep hole drilling machine that positioning and guiding uses, belong to the depth drill technical field to drill bit in initial boring.
Background technology
In prior art, the overwhelming majority adopts the cutters rotation and workpiece does not change, or workpiece rotation and cutter does not change, and the hole linearity that gets out like this is not high, and roughness neither be fine; Because use the high pressure cooling, very high to the requirement of sealing, there is leakage phenomenon in common drill bushing.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of not only can guarantee workpiece and cutter rotate simultaneously, realize rotating speed stack, but also can realize good sealing, guarantee under high cooling pressure, not produce the drill bushing structure of the NC deep hole drilling machine of leakage.
According to technical scheme provided by the invention, the drill bushing structure of described NC deep hole drilling machine, it is included in the left bearing cover for seat and the oil sealing seat of left and right sides fixed interval on the housing seat, in the left bearing cover for seat, be rotatably connected to revolving sleeve by bearing arrangement, be fixed with the revolution upper shield in the revolving sleeve left part, slidely connect in revolving sleeve and move cover, move between cover and the revolving sleeve and be provided with the compression spring, interference fit has guide pin bushing in moving the left side section endoporus of cover; In the oil sealing seat, be rotatably connected to support set, in the endoporus that moves cover, be provided with deep hole drill, there is the gap between the hole wall of deep hole drill outer wall and mobile cover, the deep hole drill left end stretches out in guide pin bushing, the deep hole drill right-hand member stretches out in support set, and deep hole drill all closely plugs together with guide pin bushing, support set, is fixed with oil baffle in the support set left part, is fixed with oil baffle disc on the deep hole drill between left bearing cover for seat and the oil sealing seat.
Described bearing arrangement comprises that spacer between left and right is connected on the deep groove ball bearing on the revolving sleeve, revolving sleeve outer wall left part is provided with bulge loop, be provided with the bearing seal ring in the right section of revolving sleeve, two deep groove ball bearings are enclosed within on the revolving sleeve between bulge loop and the bearing seal ring, and be provided with the investigation mission outside the city or town crack ring and interior accent crack ring that is socketed on the revolving sleeve between the opposing end surface of two deep groove ball bearings, existence is used for the gap that the rolling element to deep groove ball bearing is lubricated between the internal face of investigation mission outside the city or town crack ring and the interior accent crack ring outside wall surface, and puts at left shaft holder and to be provided with the oil nozzle that is communicated with this gap.
Be provided with thrust ball bearing on the revolving sleeve between bulge loop and the left bearing cover for seat left side, be provided with the outer seal ring with the thrust ball bearing capping in the bulge loop outer end, the right-hand member of described outer seal ring embeds in the annular recess of offering left bearing cover for seat left side.
Be fixed with sealing ring on the deep hole drill between oil baffle disc and the oil sealing seat, support set is rotatably connected in the oil sealing seat by deep groove ball bearing, is fixed with oil baffle in the support set left part.
Be provided with upper cover plate in the housing seat top ends, between upper cover plate bottom face and housing seat top end face, be provided with sealing gasket.
Be provided with the chip removal seat at the housing seat sidewall, the chip removal seat has chip-removal hole, and the chip removal plate under being tilted to is set in the housing seat, and the bottom of chip removal plate connects chip-removal hole, is connected with the chip discharging tube that is communicated with chip-removal hole on the chip removal seat, is provided with sealing gasket between chip removal seat and the housing seat.
Revolving sleeve right-hand member outer wall offers screw thread, is bolted with right-to-left and is bolted with locknut and clamp nut successively on this screw thread.
But the present invention adopts modes of high-precision rotary of front and back, rotation when can realize workpiece and cutter.Make rotary speed produce stack, linearity that the realization machining hole is high and low roughness.And the mode of employing dual-seal, can realize reliable, the nothing leakage that seal.
Description of drawings
Fig. 1 is the profile of the present invention at the drill bushing structure of reset condition.
Fig. 2 is the left view of the present invention at the drill bushing structure of reset condition.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: the present invention is mainly by housing seat 1, thrust ball bearing 2, deep groove ball bearing 3, guide pin bushing 4, revolution upper shield 5, revolving sleeve 6, outer seal ring 7, investigation mission outside the city or town crack ring 8, the interior crack ring 9 of transferring, left bearing cover for seat 10, bearing seal ring 11, compression spring 12, clamp nut 13, locknut 14, move cover 15, sealing gasket 16, oil sealing seat 17, special seal dish 18, oil baffle 19, support set 20, deep groove ball bearing 21, oil baffle disc 22, chip discharging tube 23, sealing gasket 24, chip removal seat 25, upper cover plate 26, oil nozzle 27, deep hole drill 28 parts such as grade constitute.
The drill bushing structure of NC deep hole drilling machine of the present invention, it is included in the left bearing cover for seat 10 and oil sealing seat 17 of left and right sides fixed interval on the housing seat 1, in left bearing cover for seat 10, be rotatably connected to revolving sleeve 6 by bearing arrangement, be fixed with revolution upper shield 5 in revolving sleeve 6 left parts, in revolving sleeve 6, slidely connect and move cover 15, move and be provided with compression spring 12 between cover 15 and the revolving sleeve 6, interference fit has guide pin bushing 4 in moving the left side section endoporus of cover 15; In oil sealing seat 17, be rotatably connected to support set 20, in the endoporus that moves cover 15, be provided with deep hole drill 28, there is the gap between the hole wall of deep hole drill 28 outer walls and mobile cover 15, deep hole drill 28 left ends stretch out in guide pin bushing 4, deep hole drill 28 right-hand members stretch out in support set 20, and deep hole drill 28 all closely plugs together with guide pin bushing 4, support set 20, is fixed with oil baffle 19 in support set 20 left parts, is fixed with oil baffle disc 22 on the deep hole drill 28 between left bearing cover for seat 10 and the oil sealing seat 17.
Described bearing arrangement comprises that spacer between left and right is connected on the deep groove ball bearing 3 on the revolving sleeve 6, revolving sleeve 6 outer wall left parts are provided with bulge loop, be provided with bearing seal ring 11 in revolving sleeve 6 right sections, two deep groove ball bearings 3 are enclosed within on the revolving sleeve 6 between bulge loop and the bearing seal ring 11, and be provided with the investigation mission outside the city or town crack ring 8 and interior accent crack ring 9 that is socketed on the revolving sleeve 6 between the opposing end surface of two deep groove ball bearings 3, the internal face of investigation mission outside the city or town crack ring 8 and interior accent crack are encircled existence between 9 outside wall surface and are used for the gap that the rolling element to deep groove ball bearing 3 is lubricated, and are provided with the oil nozzle 27 that is communicated with this gap on left bearing cover for seat 10.
Be provided with thrust ball bearing 2 on the revolving sleeve 6 between bulge loop and left bearing cover for seat 10 left sides, be provided with the outer seal ring 7 with thrust ball bearing 2 cappings in the bulge loop outer end, the right-hand member of described outer seal ring 7 embeds in the annular recess of offering left bearing cover for seat 10 left sides.
Be fixed with sealing ring 18 on the deep hole drill 28 between oil baffle disc 22 and the oil sealing seat 17, support set 20 is rotatably connected in the oil sealing seat 17 by deep groove ball bearing 21, is fixed with oil baffle 19 in support set 20 left parts.
Be provided with upper cover plate 26 in housing seat 1 top ends, between upper cover plate 26 bottom faces and housing seat 1 top end face, be provided with sealing gasket 16.
Be provided with chip removal seat 25 at housing seat 1 sidewall, chip removal seat 25 has chip-removal hole, and the chip removal plate under being tilted to is set in the housing seat 1, and the bottom of chip removal plate connects chip-removal hole, be connected with the chip discharging tube 23 that is communicated with chip-removal hole on the chip removal seat 25, be provided with sealing gasket 24 between chip removal seat 25 and the housing seat 1.
Revolving sleeve 6 right-hand member outer walls offer screw thread, be bolted with right-to-left and be bolted with locknut 14 and clamp nut 13 successively on this screw thread.
Housing seat 1 is fastened on the lathe bed by soket head cap screw, and stamps pin, and in each drill bushing assembly, the guide pin bushing gyro black assembly of front end, the sealing gyro black assembly of rear end all are installed on the housing seat 1 with screw with the form of sleeve, and stamp pin.
In the sealing gyro black assembly on right side, ditch ball bearing 21 skies are enclosed within on the support set 20, and oil baffle 19 is fastened on the support set 20, and sky is enclosed within oil sealing seat 17 together, and oil baffle disc 22 is fastened on the oil sealing seat 17, and oil sealing seat 17 is fastened on the housing seat 1 with screw, and stamps pin.Special seal dish 18 skies are enclosed within on the drilling rod 28.Sealing gasket 16 and upper cover plate 26 are fastened on the top of housing seat 1, and chip removal seat 25 and sealing gasket 24 are fastened on the left side of housing seat 1, and chip discharging tube 23 skies are enclosed within on the chip removal seat 25.
Housing seat 1 is a cast member, is fixed on the lathe bed, and housing seat has two groups of coaxial apertures, and every group of hole guarantees axiality 0.01mm.Two cover drill bushing systems are housed simultaneously, and each drill bushing assembly is divided into the guide pin bushing gyro black assembly in left side, the sealing gyro black assembly on right side again.
In the guide pin bushing gyro black assembly in left side, guide pin bushing 4 is interference fitted in and moves in the cover 15, and in revolving sleeve 6, move together, move cover 15 cylindricals and revolving sleeve 6 endoporus match grindings, its gap guarantees in 3 μ m, compression spring 12 plays buffering and resets, revolution upper shield 5 plays a part spacing and sealing, and revolving sleeve 6 rotates in left shaft holder 10 by thrust ball bearing 2 and deep groove ball bearing 3, adopts high-precision bearing, assurance guide pin bushing 4 endoporus are beated precision less than 5 μ m, and axial float is less than 5 μ m.Investigation mission outside the city or town crack ring 8, interior accent crack ring 9 are uniform thickness; bearing seal ring 11 adopts gap sealed mode to prevent that cutting fluid and smear metal from entering; clamp nut 13, locknut 14 play a part fastening; clamp nut 13 also adopts gap sealed mode; play thick sealing; prevent that cutting fluid and smear metal from entering, 7 protection sealing functions of outer seal ring to thrust ball bearing 2.
In the sealing gyro black assembly on right side, oil baffle 19 is installed on the support set 20, rotates in oil sealing seat 17 by deep groove ball bearing 21, oil sealing seat 17 is fixed on the housing seat 1, special seal dish 18 skies are enclosed within on the deep hole drill 28, rotate 22 preliminary retaining oil of oil baffle disc and position-limiting action with drill bit.Chip removal seat 25 is installed in the rear side of housing seat 1 with sealing gasket 24, is used for the backflow of cutting fluid, and cutting fluid is back to by chip discharging tube 23 and connects the bits case.Sealing gasket 16 and upper cover plate 26 are installed on the top of housing seat 1, play sealing and observation effect.
Operation principle of the present invention:
Cylindrical work heads into revolution upper shield 5, top upper guide bush 4 is with moving cover 15 again, under the buffering of compression spring 12, fitted in its right end face and revolving sleeve 6 bottom surfaces of moving cover 15, along with the rotation of workpiece, also drive revolving sleeve 6, bearing seal ring 11, clamp nut 13, locknut 14 and outer seal ring 7 and in left shaft holder 10, oil sealing seat 17, rotate.Deep hole drill 28 rotation at a high speed realizes servo-actuated rotation and sealing by the sealing gyro black assembly of rear end, the rotation in oil sealing seat 17 together of oil baffle 19, support set 20, and special seal dish 18 skies are enclosed within on the drilling rod, rotate with drill bit.Smear metal and cutting fluid flow into the inner chamber of housing seat 1, and are back to by chip discharging tube 23 from the delivery port in left side and connect the bits case.Two kinds of round section joint rings of sealing employing between cylindrical work and the guide pin bushing 4 reach end face seal and add radial seal.The mode of bearing seal ring 11 and the sealing of clamp nut 13 double gaps is adopted in the sealing of deep groove ball bearing 3.The sealing of the sealing gyro black assembly of deep hole drill 28 and rear end is realized jointly by special seal dish 18 and oil baffle 19.
Claims (7)
1. the drill bushing structure of a NC deep hole drilling machine, comprise housing seat (1), it is characterized in that: on housing seat (1) between left and right every being fixed with left bearing cover for seat (10) and oil sealing seat (17), in left bearing cover for seat (10), be rotatably connected to revolving sleeve (6) by bearing arrangement, be fixed with revolution upper shield (5) in revolving sleeve (6) left part, in revolving sleeve (6), slidely connect and move cover (15), move and be provided with compression spring (12) between cover (15) and the revolving sleeve (6), interference fit has guide pin bushing (4) in moving the left side section endoporus of cover (15); In oil sealing seat (17), be rotatably connected to support set (20), in the endoporus that moves cover (15), be provided with deep hole drill (28), there is the gap between the hole wall of deep hole drill (28) outer wall and mobile cover (15), deep hole drill (28) left end stretches out in guide pin bushing (4), deep hole drill (28) right-hand member stretches out in support set (20), and deep hole drill (28) all with guide pin bushing (4), support set (20) closely plugs together, be fixed with oil baffle (19) in support set (20) left part, on the deep hole drill (28) between left bearing cover for seat (10) and the oil sealing seat (17), be fixed with oil baffle disc (22).
2. the drill bushing structure of NC deep hole drilling machine as claimed in claim 1, it is characterized in that: described bearing arrangement comprises that spacer between left and right is connected on the deep groove ball bearing (3) on the revolving sleeve (6), revolving sleeve (6) outer wall left part is provided with bulge loop, be provided with bearing seal ring (11) in the right section of revolving sleeve (6), two described deep groove ball bearings (3) are enclosed within on the revolving sleeve (6) between bulge loop and the bearing seal ring (11), and be provided with the investigation mission outside the city or town crack ring (8) and interior accent crack ring (9) that is socketed on the revolving sleeve (6) between the opposing end surface of two described deep groove ball bearings (3), existence is used for the gap that the rolling element to described deep groove ball bearing (3) is lubricated between the internal face of investigation mission outside the city or town crack ring (8) and interior accent crack ring (9) outside wall surface, and is provided with the oil nozzle (27) that is communicated with this gap on left bearing cover for seat (10).
3. the drill bushing structure of NC deep hole drilling machine as claimed in claim 2, it is characterized in that: on the revolving sleeve (6) between bulge loop and left bearing cover for seat (10) left side, be provided with thrust ball bearing (2), be provided with the outer seal ring (7) with thrust ball bearing (2) capping in the bulge loop outer end, the right-hand member of described outer seal ring (7) embeds in the annular recess of offering left bearing cover for seat (10) left side.
4. the drill bushing structure of NC deep hole drilling machine as claimed in claim 1, it is characterized in that: be fixed with sealing ring (18) on the deep hole drill (28) between oil baffle disc (22) and the oil sealing seat (17), support set (20) is rotatably connected in the oil sealing seat (17) by deep groove ball bearing (21), is fixed with oil baffle (19) in support set (20) left part.
5. the drill bushing structure of NC deep hole drilling machine as claimed in claim 1 is characterized in that: be provided with upper cover plate (26) in housing seat (1) top ends, be provided with sealing gasket (16) between upper cover plate (26) bottom face and housing seat (1) top end face.
6. the drill bushing structure of NC deep hole drilling machine as claimed in claim 1, it is characterized in that: be provided with chip removal seat (25) at housing seat (1) sidewall, chip removal seat (25) has chip-removal hole, chip removal plate under being tilted to is set in the housing seat (1), the bottom of chip removal plate connects chip-removal hole, be connected with the chip discharging tube (23) that is communicated with chip-removal hole on the chip removal seat (25), be provided with sealing gasket (24) between chip removal seat (25) and the housing seat (1).
7. the drill bushing structure of NC deep hole drilling machine as claimed in claim 1, it is characterized in that: revolving sleeve (6) right-hand member outer wall is provided with screw thread, and right-to-left is bolted with locknut (14) and clamp nut (13) successively on this screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100254505A CN101502888B (en) | 2009-03-03 | 2009-03-03 | Drill bushing structure of numerical control deep-hole drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100254505A CN101502888B (en) | 2009-03-03 | 2009-03-03 | Drill bushing structure of numerical control deep-hole drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502888A CN101502888A (en) | 2009-08-12 |
| CN101502888B true CN101502888B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100254505A Active CN101502888B (en) | 2009-03-03 | 2009-03-03 | Drill bushing structure of numerical control deep-hole drilling machine |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670456B (en) * | 2009-09-02 | 2012-10-10 | 惠生（南通）重工有限公司 | Wear-free boring sleeve |
| CN106475605B (en) * | 2016-12-13 | 2019-02-05 | 杭州汉派模具科技有限公司 | Drill jig and drilling machine |
| CN107876834B (en) * | 2017-11-03 | 2019-06-04 | 宁波星睿轩智能科技有限公司 | A kind of high stability hand held electric drill being easily changed drill bit |
| CN108188445B (en) * | 2018-04-03 | 2023-06-16 | 环球工业机械（东莞）有限公司 | Front guide device for deep hole drill |
| CN113446322B (en) * | 2021-07-26 | 2022-06-14 | 太原重工股份有限公司 | End shield box cover device of oil film bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287590A (en) * | 1998-10-28 | 2001-03-14 | 奈赤-单体泵股份有限公司 | Drive head for a rotary-driven rod assembly, especially for driving a sand pump |
| CN200991781Y (en) * | 2006-12-30 | 2007-12-19 | 环球工业机械（东莞）有限公司 | Guiding, supporting and clamping device for deep-hole drilling machine |
| CN201182625Y (en) * | 2008-02-24 | 2009-01-21 | 杨建军 | Pressure directional bit arbor for orthopaedics |
-
2009
- 2009-03-03 CN CN2009100254505A patent/CN101502888B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287590A (en) * | 1998-10-28 | 2001-03-14 | 奈赤-单体泵股份有限公司 | Drive head for a rotary-driven rod assembly, especially for driving a sand pump |
| CN200991781Y (en) * | 2006-12-30 | 2007-12-19 | 环球工业机械（东莞）有限公司 | Guiding, supporting and clamping device for deep-hole drilling machine |
| CN201182625Y (en) * | 2008-02-24 | 2009-01-21 | 杨建军 | Pressure directional bit arbor for orthopaedics |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-118307A 1984.07.09 |
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| CN101502888A (en) | 2009-08-12 |
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