CN1476949A - Vibration equipment for drilling - Google Patents
Vibration equipment for drilling Download PDFInfo
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- CN1476949A CN1476949A CNA031375812A CN03137581A CN1476949A CN 1476949 A CN1476949 A CN 1476949A CN A031375812 A CNA031375812 A CN A031375812A CN 03137581 A CN03137581 A CN 03137581A CN 1476949 A CN1476949 A CN 1476949A
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- vibrating device
- main shaft
- wheel assembly
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Abstract
The vibration device for drilling is formed from apper shell, intermediate shell and lower shell. It is mounted on the drilling machine by means of upper shell. The interior of the upper shell is equipped with joint-clamping screw bolt which is joint-clamped with lower end face to sliding cover for transferring axial force. The interior of intermediate shell is equipped with inputting shaft inserted into main shaft of drilling machine, rolling bearing for supporting inputting shaft, main shaft rotated with inputting shaft rotation, linear bearing and rolling bearing for supporting upper end of main shaft, roller component, double-face cylindrical cam and cone pin, and the interior of lower shell is equipped with rolling bearing and linear bearing for supporting lower end of main shaft.
Description
Technical field
The present invention relates to a kind of vibrating device that is connected on the drilling machine output, be meant a kind of vibrating device that is used to hole especially.
Background technology
In the existing drilling technique, go up boring processing at difficult-to-machine material (as GH4169, high temperature alloy, carbide alloy, stainless steel etc.) and do not obtain effective solution route as yet.Bit wear is very fast when adopting common drilling processing method difficult processing rapidoprint, and regrind bit and more bit change continually, had a strong impact on processed product quality, reduced working (machining) efficiency and improved processing cost.
The vibrating drill technology is a kind of process technology of improving drilling process by additional a kind of oscillating movement in boring procedure.
In the existing vibrating drill mechanism, the vibration force that is produced need pass to main shaft by leverage, and when needs frequency/commentaries on classics than increasing speed change gear greater than 1 the time, these all will increase cost, noise and physical dimension.The stress point off-axis of main shaft in some mechanism, this can increase the load of bearing, shortens the life-span of bearing.
The present invention proposes that a kind of drill spindle is also made the oscillating movement along its axis direction simultaneously when doing gyration in the boring process, forms the vibration drilling that is composited by gyration and axial vibration campaign and moves.
The present invention proposes a kind of novel vibrating drill device, this device is by being distributed on the necessary axial vibration campaign of drive shaft do simultaneously of the main shaft needle bearing more than three or three on every side, its point of resultant force passes through main-shaft axis, so this apparatus structure compactness, shaft strength in order, long service life.
Summary of the invention
A kind of vibrating device that is used to hole of the present invention comprises drilling machine, and its vibrating device is installed on the drilling machine output by upper shell, and this vibrating device can be used as drill press accessories and uses.Described vibrating device is made up of upper shell, middle shell, lower house, and the upper, middle and lower housing adopts and flexibly connects.Be provided with in the described upper shell and tight screw rod, and tight screw rod and slip cap lower surface and tight, be used to transmit axial force; Be provided with the rolling bearing of the power shaft that inserts in the drill press spindle, supporting power shaft in the described middle shell, with the linear bearing of the main shaft of power shaft rotation, supporting spindle upper end and rolling bearing, roll wheel assembly, two-sided cylindrical cam, taper pin, key, described two-sided cylindrical cam is connected with main shaft by taper pin, two-sided cylindrical cam respectively is equipped with one group of roll wheel assembly up and down, rolling wheel support is connected with middle shell by key, and end, main shaft lower end is provided with spring chuck and nut; Be provided with the rolling bearing and the linear bearing of supporting spindle lower end in the described lower house; Described roll wheel assembly is made up of upper and lower roll wheel assembly, the upper roller assembly is made up of rolling wheel support, axle and needle bearing, the bottom roller assembly is made up of rolling wheel support, axle and needle bearing, axle is installed in the hole of rolling wheel support, needle bearing is installed on the axle, hole on the rolling wheel support is 360 ° of evenly distributions along the circumferential direction, and number is the odd number more than 3, and upper and lower roll wheel assembly physical dimension is identical.
The described vibrating device that is used to hole, it is converted into gyration the compound motion of gyration and axial vibration campaign.
The described vibrating device that is used to hole, its two-sided cylindrical cam can be changed to meet the needs of different processing requests.
The described vibrating device that is used to hole, contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of its two-sided cylindrical cam can be the sine curve in odd number cycle, and the number of corresponding needle bearing is identical with described sine curve number of cycles.
Contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of the described vibrating device that is used to hole, its two-sided cylindrical cam can be constant acceleration curve.
Contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of the described vibrating device that is used to hole, its two-sided cylindrical cam can be the high-order moment cam curve.
The described vibrating device that is used to hole, contact with needle bearing in the roll wheel assembly number of cycles of evolute of the pitch curve on any cylinder in zone of its two-sided cylindrical cam is three, five, seven, nine, needle bearing number on the corresponding rolling wheel assembly is three, five, seven, nine, realizes that respectively frequency/commentaries on classics is than the vibrating drill mode that is three, five, seven, nine.
The described vibrating device that is used to hole, its power shaft is connected by straight end-face key with main shaft, realizes having the axial relative motion that can do under the situation of identical rotational motion among a small circle between the two; Power shaft and main shaft straight end-face key can be slip flat key, common spline, rolling spline, yielding coupling.
The described vibrating device that is used to hole, the gap when its linear bearing and rolling bearing combination elimination main shaft (18) are done axial vibration and gyration; Two described bearing assemblies can also adopt one of hydrodynamic bearing, hydrodynamic journal liquid polymers or air-bearing mode on the main shaft.
The described vibrating device that is used to hole, the relative position of its upper shell and middle shell cross section can be finely tuned, and does not overlap caused problem to eliminate coupled drill press spindle axis and slip cap axis.
Vibrating drill device of the present invention has following characteristics:
(1) does the axial vibration campaign by the while of the needle bearing in the roll wheel assembly that is distributed on main shaft three or three above odd numbers on every side drive shaft, its point of resultant force passes through main-shaft axis, reduced the load that produces between each bearing, improved the while in service life of drilling machine drill bit and also reduced noise jamming;
(2) interact with the two-sided cylindrical cam with three cycles on the main shaft and make main shaft realize the oscillating movement in three cycles naturally in returning the process that circles by being distributed on needle bearing in three roll wheel assemblies around the main shaft, i.e. realization frequency/commentaries on classics is than the vibrating drill motion mode that is 3; This mode also can realize that frequency/commentaries on classics is than the axial vibration mode that is respectively 5,7,9 by the roll wheel assembly that employing has the two-sided cylindrical cam in 5,7,9 curve cycles and has 5,7,9 needle bearings.
(3) this vibrating device is simple in structure, and is easy to assemble, can be used as drill press accessories and independently uses.
Description of drawings
Fig. 1 is a vibrating drill device cutaway view of the present invention.
Fig. 2 is a upper roller assembly cutaway view of the present invention.
Fig. 3 is a bottom roller assembly cutaway view of the present invention.
Fig. 4 is two the theoretical profiles up and down on the two-sided cylindrical cam external cylindrical surface of the present invention and the graph of a relation of cam profile.
Among the figure: 1. drill press spindle 2. slip cap 3. upper shells, 4. power shafts 5. and tightly screw rod 6. screws 7. rolling bearings 8. rolling bearings 9. linear bearings 10. rolling bearings 11. rolling bearings 12. rolling wheel supports 13. needle bearings 14. axles 15. two-sided cylindrical cam 16. middle shells 17. rolling wheel supports 18. main shafts 19. rolling bearings 20. rolling bearings 21. linear bearings 22. lower houses 23. spring chucks 24. nuts 25. screws 26. taper pins 27. keys 28. axles 29. needle bearings 30. needle bearings 31. axles 32. needle bearings 33. axle needle bearings 34. axles 35. needle bearings 36. needle bearings 37. axles
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
See also shown in Figure 1, the present invention is a kind of vibrating device that is used to hole, vibrating device is installed on the drilling machine output by upper shell 3, this vibrating device can be used as drill press accessories and uses, described vibrating device is divided into upper shell 3, middle shell 18, lower house 23, and the upper, middle and lower housing adopts six bolts 6 fixedly connected respectively.Be provided with in the described upper shell 3 and tight screw rod 5, and tight screw rod 5 and slip cap 2 lower surfaces and tight, be used to transmit axial force.Be provided with the power shaft 4 that inserts in the drill press spindle 2 in the described middle shell 16, the rolling bearing 7 of supporting power shaft 4,8, main shaft 18 with power shaft 4 rotations, the linear bearing 9 of supporting spindle 18 upper ends and rolling bearing 10,11, roll wheel assembly, two-sided cylindrical cam 15, taper pin 26, key 27, described two-sided cylindrical cam 15 is connected with main shaft 18 by taper pin 26, two-sided cylindrical cam 15 respectively is equipped with one group of roll wheel assembly up and down, rolling wheel support 12,17 pass through key 27 is connected with middle shell 16, and end, main shaft 18 lower end is provided with spring chuck 23 and nut 24 is used to tighten drill bit; Be provided with the rolling bearing 19,20 and the linear bearing 21 of supporting spindle 18 lower ends in the described lower house.
Found out that by Fig. 1 power shaft 4 inserts in the drill press spindle 1 and locks, upper shell 3 and drilling machine slip cap 2 link, and tight screw rod 5 is installed the back and slip cap 2 lower surfaces are also tight, plays the effect of transmitting axial force.Upper shell 3 is connected with middle shell 16 by six bolts 6, and the relative position of its cross section can be finely tuned, and does not overlap caused problem to eliminate coupled drill press spindle axis and slip cap axis.
Drive power shaft 4 rotations during drill press spindle 1 rotation, power shaft 4 bottoms are by 7,8 supportings of two rolling bearings, the rectangular channel of power shaft 4 lower ends cooperates with the straight end-face key 27 of main shaft 18 upper ends, drive main shaft 18 rotations, straight end-face key structure wherein allows that the two is in the axially-movable that axially produces twice axial amplitude size.Driving two-sided cylindrical cam 15 by taper pin 26 during main shaft 18 rotations rotates, two-sided cylindrical cam 15 respectively is equipped with a cover roll wheel assembly up and down, as shown in Figure 2, the upper roller assembly comprises 14,28,31 and three needle bearings 13,29,30 of 12, three axles of a rolling wheel support.As shown in Figure 3, the bottom roller assembly comprises 33,34,37 and three needle bearings 32,35,36 of 17, three axles of a rolling wheel support, and the physical dimension of upper and lower roll wheel assembly is identical.Rolling wheel support 12,17 connects with middle shell 16 by key 27, therefore, when the two-sided cylindrical cam 15 of main shaft 18 drives rotates, rolling wheel support 12,17 is motionless, produce axial up-down vibration under the needle bearing effect of two-sided cylindrical cam 15 in roll wheel assembly, and by taper pin 26 up-down vibration is passed to main shaft 18, thereby main shaft 18 has formed while rotating the compound motion of axial vibration.Drill bit is installed on the main shaft 18 by spring chuck 23 and nut 24, just can realizes vibration drilling.
In the present invention, main shaft 18 is by two bearing assembly supportings up and down.Linear bearing 9 and two rolling bearings 10,11 are formed main shaft upper support assembly, linear bearing 21 and two rolling bearings 19,20 are formed main shaft lower support assembly, because two bearing assemblies have all adopted rolling bearing structure, can eliminate the gap that main shaft 18 supports fully, thereby improve the kinematic accuracy of main shaft 18.
Figure 4 shows that two the theoretical profiles up and down on the external cylindrical surface and the graph of a relation of cam profile.Wherein pitch curve can be sine curve or constant acceleration curve or other high order cam curve.The characteristics of this cylindrical cam are that two theoretical profiles are parallel to each other up and down.If the needle bearing radius be the minimum point of cam profile on R, the cam and the distance between the following cam profile minimum point (the basic thickness of cam) for H, the amplitude that makes main shaft produce axial vibration be that the corner of A, cam is that the radius of α, cylindrical cam is Rp, if coordinate system as shown in Figure 4, then when adopting the sinusoidal cam curve, the equation that can obtain pitch curve is:
In like manner, the equation of following pitch curve is:
As seen from Figure 4, two-sided cylindrical cam 15 rotates a circle, its up and down on two theoretical profiles and the cam profile any 1 C C-E is arranged, E-G, three cycles of G-C, two circles are represented needle bearing up and down, needle bearing rolls along two-sided cylindrical cam surface about in the two-sided cylindrical cam rotary course, forces two-sided cylindrical cam along the axis up-down vibration, and therefore two-sided cylindrical cam rotates a circle, along axis vibration three times, realize that promptly frequency commentaries on classics/ratio is 3 motion.
Device of the present invention at first unclamps the connection screw between upper shell 3 and the middle shell 16 in use, but keeps not having the gap between the two, then also tight screw rod 5 is screwed onto the appropriate location downwards.After this, the power shaft 4 of described vibrating device is inserted in the taper hole of drill press spindles 1, and it is connect firmly.The screw rod of tightening on the upper shell 3 closely is bound up the upper shell 3 and the slip cap 2 of drill press spindle 1, tightens then and tight screw rod 5, makes its upper surface and slip cap 2 lower surfaces and tight, and it is fixing with middle shell 16 with upper shell 3 to tighten 6 screws 6 at last.The power shaft 4 that moves through of drill press spindle 1 is delivered in the described vibrating drill device, and power shaft 4 passes to main shaft 18 by the sliding motion adjutant gyration of straight end-face key structure or other type.The axial location of main shaft 18 is by two-sided cylindrical cam 15 decisions.Because roll wheel assembly is fixed on the middle shell 16, therefore the axial location of two-sided cylindrical cam 15 is by the angle installation site of roll wheel assembly and the angular motion determining positions of main shaft 18.The result is when main shaft 18 at the uniform velocity returns when circling, if the number of sheets of two-sided cylindrical cam 15 (periodicity of pitch curve and cam profile) is 3, then main shaft 18 is made the oscillating movement in three cycles vertically with it, does at the uniform velocity gyration of a week simultaneously.This motion can pass motion to drill bit by the collet 23 of main shaft 18 lower ends.Feed motion is rotated realization by the handle of bench drill, also can realize the auto-feed campaign by other auto feed system.Like this, when from a main motion of outside input and a feed motion,, on drill bit, can obtain a rotating main motion, axial vibration and feed motion, thereby realize vibration drilling processing by described vibrating drill device.
Needle bearing number on the roll wheel assembly in the present invention can be set to three, five, seven, nine, realizes that respectively frequency/commentaries on classics is than the vibrating drill mode that is three, five, seven, nine.
Vibrating device of the present invention can convert the gyration of drill press spindle input to the compound motion of the gyration and the axial vibration of vibrating spindle.The present invention is suitable for the annex as drilling machine, also can be connected in and realize vibrating drill processing on the lathe of other type.
Claims (10)
1, a kind of vibrating device that is used to hole, comprise drilling machine, it is characterized in that: vibrating device is installed on the drilling machine output by upper shell (3), this vibrating device can be used as drill press accessories and uses, described vibrating device is made up of upper shell (3), middle shell (18), lower house (23), and the upper, middle and lower housing adopts and flexibly connects; Be provided with in the described upper shell (3) and tight screw rod (5), and tight screw rod (5) and slip cap (2) lower surface and tight, be used to transmit axial force; Be provided with the power shaft (4) that inserts in the drill press spindle (1) in the described middle shell (16), the rolling bearing (7 of supporting power shaft 4,8), main shaft (18) with power shaft (4) rotation, the linear bearing (9) and the rolling bearing (10 of supporting spindle (18) upper end, 11), roll wheel assembly, two-sided cylindrical cam (15), taper pin (26), key (27), described two-sided cylindrical cam (15) is connected with main shaft (18) by taper pin (26), two-sided cylindrical cam (15) respectively is equipped with one group of roll wheel assembly up and down, rolling wheel support (12,17) be connected with middle shell (16) by key (27), main shaft (18) end, lower end is provided with spring chuck (23) and nut (24); Be provided with the rolling bearing (19,20) and the linear bearing (21) of supporting spindle (18) lower end in the described lower house; Described roll wheel assembly is made up of upper and lower roll wheel assembly, the upper roller assembly is made up of rolling wheel support (12), axle and needle bearing, the bottom roller assembly is made up of rolling wheel support (17), axle and needle bearing, axle is installed in the hole of rolling wheel support, needle bearing is installed on the axle, hole on the rolling wheel support is 360 ° of evenly distributions along the circumferential direction, and number is the odd number more than 3, and upper and lower roll wheel assembly physical dimension is identical.
2, the vibrating device that is used to hole according to claim 1 is characterized in that: vibrating device is converted into gyration the compound motion of gyration and axial vibration campaign.
3, the vibrating device that is used to hole according to claim 1 is characterized in that: two-sided cylindrical cam (15) can be changed to meet the needs of different processing requests.
4, the vibrating device that is used to hole according to claim 1, it is characterized in that: contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of two-sided cylindrical cam (15) can be the sine curve in odd number cycle, and the number of corresponding needle bearing is identical with described sine curve number of cycles.
5, the vibrating device that is used to hole according to claim 1 is characterized in that: contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of two-sided cylindrical cam (15) can be constant acceleration curve.
6, the vibrating device that is used to hole according to claim 1 is characterized in that: contact with needle bearing in the roll wheel assembly evolute of the pitch curve on any cylinder in zone of two-sided cylindrical cam (15) can be the high-order moment cam curve.
7, according to claim 1,4,5, the 6 described vibrating devices that are used to hole, it is characterized in that: contact with needle bearing in the roll wheel assembly number of cycles of evolute of the pitch curve on any cylinder in zone of two-sided cylindrical cam (15) is three, five, seven, nine, needle bearing number on the corresponding rolling wheel assembly is three, five, seven, nine, realizes that respectively frequency/commentaries on classics is than the vibrating drill mode that is three, five, seven, nine.
8, the vibrating device that is used to hole according to claim 1 is characterized in that: power shaft (4) is connected by straight end-face key with main shaft (18), realizes having the axial relative motion that can do under the situation of identical rotational motion among a small circle between the two; Power shaft (4) and main shaft (18) straight end-face key can be slip flat key, common spline, rolling spline, yielding coupling.
9, the vibrating device that is used to hole according to claim 1 is characterized in that: the gap when linear bearing (9,21) and rolling bearing (10,11,19,20) combination elimination main shaft (18) are done axial vibration and gyration; Last two the described bearing assemblies of main shaft (18) can also adopt one of hydrodynamic bearing, hydrodynamic journal liquid polymers or air-bearing mode.
10, the vibrating device that is used to hole according to claim 1, it is characterized in that: the relative position of upper shell (3) and middle shell (16) cross section can be finely tuned, to eliminate coupled drill press spindle (1) axis and slip cap (2) axis does not overlap caused problem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031375812A CN1194836C (en) | 2003-06-18 | 2003-06-18 | Vibration equipment for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031375812A CN1194836C (en) | 2003-06-18 | 2003-06-18 | Vibration equipment for drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1476949A true CN1476949A (en) | 2004-02-25 |
| CN1194836C CN1194836C (en) | 2005-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031375812A Expired - Fee Related CN1194836C (en) | 2003-06-18 | 2003-06-18 | Vibration equipment for drilling |
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| Country | Link |
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| CN (1) | CN1194836C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987481A (en) * | 2011-12-16 | 2014-08-13 | 米蒂斯公司 | Machining process |
| CN104271294A (en) * | 2012-04-03 | 2015-01-07 | 技术研究与创新基金会 | Tool holder device |
| CN104755209A (en) * | 2012-10-26 | 2015-07-01 | 阿特拉斯·科普柯工业技术公司 | Drilling tool with flexible spindle feeding |
| CN107052401A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN107570739A (en) * | 2017-11-06 | 2018-01-12 | 中北大学 | A kind of vibration drilling auxiliary machining device |
| CN108982147A (en) * | 2018-08-06 | 2018-12-11 | 中国地质大学（武汉） | A kind of plunger type vibration revolution sampler drill based on spatial cam |
| CN110480068A (en) * | 2019-07-30 | 2019-11-22 | 西安理工大学 | Low frequency axial vibration drilling knife handle |
| CN110480062A (en) * | 2019-09-29 | 2019-11-22 | 河北工业大学 | A kind of cam mechanism type axial vibration drilling equipment |
| CN111215947A (en) * | 2015-04-08 | 2020-06-02 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
-
2003
- 2003-06-18 CN CNB031375812A patent/CN1194836C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987481A (en) * | 2011-12-16 | 2014-08-13 | 米蒂斯公司 | Machining process |
| CN104271294A (en) * | 2012-04-03 | 2015-01-07 | 技术研究与创新基金会 | Tool holder device |
| CN104271294B (en) * | 2012-04-03 | 2016-08-24 | 技术研究与创新基金会 | Knife rest equipment |
| CN104755209A (en) * | 2012-10-26 | 2015-07-01 | 阿特拉斯·科普柯工业技术公司 | Drilling tool with flexible spindle feeding |
| CN104755209B (en) * | 2012-10-26 | 2016-12-14 | 阿特拉斯·科普柯工业技术公司 | There is the boring bar tool of principal axis of compliance feeding |
| CN111215947A (en) * | 2015-04-08 | 2020-06-02 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
| CN111215947B (en) * | 2015-04-08 | 2022-02-11 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
| CN107052401A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN107052401B (en) * | 2017-05-15 | 2018-08-10 | 北京航空航天大学 | A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining |
| CN107570739A (en) * | 2017-11-06 | 2018-01-12 | 中北大学 | A kind of vibration drilling auxiliary machining device |
| CN107570739B (en) * | 2017-11-06 | 2019-05-31 | 中北大学 | A kind of vibration drilling auxiliary machining device |
| CN108982147A (en) * | 2018-08-06 | 2018-12-11 | 中国地质大学（武汉） | A kind of plunger type vibration revolution sampler drill based on spatial cam |
| CN108982147B (en) * | 2018-08-06 | 2024-02-27 | 中国地质大学（武汉） | Plunger type vibration rotary sampling drilling machine based on space cam mechanism |
| CN110480068A (en) * | 2019-07-30 | 2019-11-22 | 西安理工大学 | Low frequency axial vibration drilling knife handle |
| CN110480062A (en) * | 2019-09-29 | 2019-11-22 | 河北工业大学 | A kind of cam mechanism type axial vibration drilling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1194836C (en) | 2005-03-30 |
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