CN103878415A - High-speed precise double servo feed drilling power head - Google Patents
High-speed precise double servo feed drilling power head Download PDFInfo
- Publication number
- CN103878415A CN103878415A CN201410095080.3A CN201410095080A CN103878415A CN 103878415 A CN103878415 A CN 103878415A CN 201410095080 A CN201410095080 A CN 201410095080A CN 103878415 A CN103878415 A CN 103878415A
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- Prior art keywords
- transmission case
- shaft
- bearing
- holder
- splined shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/10—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines characterised by the drive, e.g. by fluid-pressure drive pneumatic power drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a high-speed precise double servo feed drilling power head, and belongs to the technical field of drilling tools. The power head comprises a transmission case fixing base, a transmission case, a spline shaft, a spline shaft driving mechanism, a workpiece drilling mechanism and a servo feed control mechanism, and is characterized in that the spline shaft driving mechanism comprises a first servo motor, a large synchronous pulley, a small synchronous pulley and a transmission belt; the servo feed control mechanism comprises a second servo motor, a coupler, a ball screw, a lead screw nut, a sliding block, a stroke contactor, a driver adjustment plate, a first stroke limiting sensor and a second stroke limiting sensor; guide rails are arranged on wallboards of the transmission case fixing base, and an idler wheel is installed on the side face of the sliding block and is located between the two guide rails. Under the circumstance that no mechanical part is replaced, the rotating speed of a main shaft can be adjusted at will so that the requirement that different hole diameters correspond to different cutting speeds can be met; efficiency is high, the size is small, and the requirements for high-speed and high-precision machining of small hole diameters can be met; it is guaranteed that the main shaft has good straightness and good rigidity; the automated control effect is good.
Description
Technical field
The invention belongs to drilling tool technical field, be specifically related to a kind of two servo feed high speed and precision drill unit, particularly can on metal works, high speed, high accuracy process diameter holes.
Background technology
At present, common pneumatic type drilling power head, servo feed drilling power head on market, its main shaft (claiming again splined shaft) revolution is all to pass through Induction Motor-Driven on the one hand, because this kind of motor controllability is poor, cause unit head to reach with the proportioning of the belt pulley being connected with main shaft the object that regulates main shaft gyration speed by changing the belt pulley being connected with motor.Need the frequent user who changes the speed of mainshaft for frequent conversion processing aperture, constantly change belt pulley, not only reduced production efficiency, also need operator to have corresponding professional knowledge, so just brought inconvenience to user simultaneously; On the other hand, current unit head in the industry, its speed of mainshaft is substantially below 10000min-1, in the time approaching or reach this rotating speed, because high speed rotary can cause the excessive cutter that shakes of beating, cause breaking etc. not process, adding the high-speed and high-efficiency in man-hour, high-precision demand thereby can not meet diameter holes.
The applicant has proposed name and has been called " servo feed drill unit structure " on 06 28th, 2013; the utility model patent of Granted publication CN203330429U; it has saved provides compressed-air actuated auxiliary equipment; can not only ensure the drilling quality to workpiece; can also effectively protect drilling tool, have that noise is little, the strong point of automation control effect excellence.But its structure can't meet the processing request of diameter holes, its reason have following some: first, it is asynchronous machine that the rotary power of drilling processing is provided, thereby motor poor controllability, can only realize different splined shaft speeds of gyration by the proportioning of changing belt wheel; Secondly, in servo feed controlling organization, the drive mechanism of servomotor slows down by certain speed ratio by a pair of synchronous pulley equally, and parts are many, and structure is not compact, cannot meet the requirement of device miniaturization, and increase because too much machine driving causes machine error; The 3rd, the guiding of sliding shoe only depends on a guide pillar to realize, and cannot adjust the accumulated error of bringing due to assembling, thereby cannot guarantee that splined shaft has good linearity and good rigidity.
In view of above-mentioned prior art, be necessary that to existing, for processing the structure rational modification in addition of drill unit of diameter holes, the applicant has done positive and useful design for this reason, has finally formed technical scheme described below.
Summary of the invention
The object of the invention is to provide a kind of can high speed drill aperture and processing stroke and feed speed can high accuracy control two servo feed high speed and precision drill units, it can regulate arbitrarily main shaft gyration speed in the situation that not changing any mechanical part, to meet the requirement of the corresponding different cutting speeds in different small-bores, enhance productivity; Drive mechanism compactness, parts are few, connect reliably, can meet the requirement of device miniaturization; Guiding mechanism is reasonable, can adjust the accumulated error of bringing due to assembling, to guarantee that main shaft has good linearity and good rigidity.
The object of the invention is to reach like this, a kind of two servo feed high speed and precision drill unit, comprise transmission case holder, being fixed on the top of transmission case holder and formation has the transmission case in transmission case chamber, with longitudinal cantilever position pivotable be arranged on transmission case and be insinuated into the splined shaft in transmission case chamber, be arranged on splined shaft driving mechanism on transmission case and that be in transmission connection with splined shaft in transmission case chamber, be connected with splined shaft for the workpiece drilling sector to workpiece drilling and for ordering about the servo feed controlling organization of described workpiece drilling sector upstream or downstream, be characterized in: described splined shaft driving mechanism comprises the first servomotor, large synchronous pulley, small synchronous pulley and driving-belt, the first servomotor is fixed on the bottom of described transmission case, the first motor shaft of this first servomotor is in the bottom of transmission case is stretched over described transmission case chamber, large synchronous pulley is positioned at transmission case chamber and fixes with the first motor shaft, small synchronous pulley is positioned at transmission case chamber and is fixed on the upper end of described splined shaft, one end of driving-belt is nested with on large synchronous pulley, and the other end is nested with on small synchronous pulley, described servo feed controlling organization comprises the second servomotor, shaft coupling, ball-screw, feed screw nut, sliding shoe, stroke contact, driver is adjusted plate, the first row degree level sensor and the second stroke limit sensor, the second servomotor is fixed on the bottom in transmission case chamber, the second motor shaft of this second servomotor is in the bottom in transmission case chamber is stretched over the shaft coupling chamber at transmission case holder top, shaft coupling is positioned at shaft coupling chamber and is fixed on the second motor shaft, feed screw nut is arranged on one end of sliding shoe, the lead screw shaft of ball-screw upper end by lead screw shaft forward moving be bearing on transmission case holder and be insinuated in shaft coupling chamber fix with shaft coupling, middle part and the feed screw nut of ball-screw are rotatably assorted, and the lead screw shaft of ball-screw lower end is bearing in a lead screw shaft bearing rotationally, described lead screw shaft bearing is fixed on the holder base plate of transmission case holder, the first row degree level sensor and the second stroke limit sensor are separately positioned on the upper and lower of driver adjustment plate height direction, described driver is adjusted plate and is fixed on the left wallboard of holder of transmission case holder, described stroke contact is fixed on sliding shoe on the side of left wallboard one side of holder, and corresponding to the first row degree level sensor, between the second stroke limit sensor, on the right wallboard of holder of described transmission case holder, be provided with a pair of guide rail that faces each other and be arranged in parallel along short transverse, correspondingly, on the side of right wallboard one side of holder, a track roller is installed rotationally at described sliding shoe, described track roller is between pair of guide rails.
In a specific embodiment of the present invention, the top of described transmission case holder and form and have a bearing bore in position corresponding to described splined shaft, in this bearing bore, be provided with spline clutch shaft bearing, spline the second bearing and be positioned at spline clutch shaft bearing, bearing spacer between spline the second bearing, the upper end of described splined shaft is bearing on spline clutch shaft bearing and spline the second bearing rotationally, and after spline clutch shaft bearing, be stretched in described transmission case chamber leaning out, and the lower end of splined shaft is arranged with a splined shaft slip cap slidably, described splined shaft slip cap and described holder base plate are slidably matched, and be connected with described workpiece drilling sector, be provided with at the top of described transmission case for described splined shaft driving mechanism and described servo feed controlling organization and cover the case lid protecting, servomotor cover.
In another specific embodiment of the present invention, the other end of described sliding shoe is nested with on described splined shaft slip cap and with splined shaft slip cap and fixes.
In another specific embodiment of the present invention, on the other end of described sliding shoe, be installed with a slip cap holder, between described slip cap holder and described splined shaft slip cap, structure is for being fixedly connected with.
In another specific embodiment of the present invention, described transmission case holder is extended with an outer tube connector on holder base plate and towards a side of described workpiece drilling sector, this outer tube connector is corresponding with described splined shaft slip cap, and on this outer tube connector, connect the upper end of an outer tube with vertical cantilever state, and the lower end of outer tube is connected with an outer tube sliding seat, described splined shaft slip cap is through being stretched in the tube chamber of outer tube after outer tube connector, described workpiece drilling sector is in transmission connection with the lower end of described splined shaft in the tube chamber of outer tube, and be slidably matched with described outer tube sliding seat.
Also have in a specific embodiment of the present invention, be provided with at least one case lid fixed bolt in the transmission case chamber of described transmission case, the middle part of the length direction of described case lid and case lid screw fixed leg are fixed.
In of the present invention and then a specific embodiment, in described shaft coupling chamber, be also provided with bearing setscrew nut and bearing platen, described bearing setscrew nut is positioned at the below of shaft coupling and is fixed in the lead screw shaft of ball-screw upper end, and described bearing platen is fixedly mounted on the top of leading screw bearing.
More of the present invention and in a specific embodiment, offer adjustment tank in described sensor adjustment block.
The present invention is owing to adopting after said structure, the beneficial effect having: one, the first servomotor has replaced the drive motors of the asynchronous machine in prior art as splined shaft, utilize the controllability that servomotor is good, in the situation that not changing any mechanical part, can regulate arbitrarily the speed of gyration of main shaft, to meet the requirement of the corresponding different cutting speeds in different small-bores, enhance productivity; Two, drive mechanism compactness, has cancelled belt wheel transmission, by shaft coupling, the second servomotor is directly connected with ball-screw, the machine error that has reduced too much machine driving and cause, and connect reliably, both met the requirement of device miniaturization, meet again the requirement of high speed drill aperture; Three, the guiding mechanism of splined shaft is reasonable, can adjust the accumulated error of bringing due to assembling, to guarantee that main shaft has good linearity and good rigidity; Four, because servo feed controlling organization can automatically accurately be controlled the stroke of workpiece drilling sector, thereby without artificial loaded down with trivial details adjustment, automation control is effective.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
In figure: 1. transmission case holder, 11. holder base plates, the right wallboard of 12. holder, 13. guide rails, 131. track rollers, 1311. roller shafts, the left wallboard of 14. holder, 15. guard shield plates, 16. outer tube connectors, 161. outer tubes, 1611. outer tube sliding seats, 17. shaft coupling chambeies, 18. bearing bores; 2. transmission case, 21. transmission case chambeies, 22. case lids, 221. case lid screw fixed legs, 2211. case lid screws, 23. servomotor covers; 3. splined shaft, 31. splined shaft slip caps, 32. splines, 33. bearing spacers, 34. spline clutch shaft bearings, 35. spline the second bearings, 36. slip cap holders, 37. nuts; 4. splined shaft driving mechanism, 41. first servomotors, 411. first motor shafts, 42. large synchronous pulleys, 421. trim rings, 4211. trim ring screws, 43. small synchronous pulleys, 44. driving-belts; 5. workpiece drilling sector, 51. inner sleeves, 52. drilling cutters clamp head; 6. servo feed controlling organization, 61. second servomotors, 611. second motor shafts, 62. shaft couplings, 621. motor axis holes, 63. ball-screws, 631. lead screw shaft, 632. leading screw bearings, 633. bearing setscrew nuts, 634. bearing platens, 635. lead screw shaft bearings, 6351. holding screws, 64. feed screw nuts, 65. sliding shoes, 66. sensors are adjusted plate, 661. adjustment tanks, 67. stroke contacts, 68. the first row degree level sensors, 69. second stroke limit sensors.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the present invention program to the description of embodiment, any done according to the present invention design only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Refer to Fig. 1, provide a transmission case holder 1, take the location status of current icon as example (as follows), the top of this transmission case holder 1 forms to be had a shaft coupling chamber 17 and a bearing bore 18, bottom to form to have a holder base plate 11, right side forms has the right wallboard 12 of holder and left side forms and has the left wallboard 14 of holder, is fixedly connected with a lead screw shaft bearing 635 on holder base plate 11.Holder base plate 11 towards under a side be fixed with an outer tube connector 16, on the outer wall of this outer tube connector 16, form and have outer tube connector external screw thread, the upper end of an outer tube 161 is threaded on this outer tube connector external screw thread, and the lower end of outer tube 161 is vertical cantilever state, and the mode connecting with screw thread has connected an outer tube sliding seat 1611, the tube chamber of outer tube 161 coordinates for workpiece drilling sector 5 described below.
Preferably, in order to ensure safety and to embody good sight effect, the present invention fixes a guard shield plate 15 in the periphery of transmission case holder 1.
Provide a transmission case 2, this transmission case 2 forms a transmission case chamber 21, and this transmission case 2 both can by securing member as screw and as described in the top board of transmission case holder 1 fix, also can fix by the top board of welding manner and transmission case holder 1, the present embodiment is selected the former.In transmission case chamber 21 and the middle position that is preferably placed at the length direction in transmission case chamber 21 form to have and a pair ofly (but be not limited to a pair of, for example can be also one) case lid screw fixed leg 221, in the distal end faces of case lid screw fixed leg 221, offer and cover fixing screw hole, the case lid 22 of illustrating in figure is fixed by case lid screw 2211 and the lid fixing screw hole of case lid screw fixed leg 221, servomotor cover 23 is positioned at the top of the second servomotor 61 and as fixing in screw and case lid 22 by securing member, case lid 22, servomotor cover 23 covers and protects transmission case chamber 21.Offer in the bottom of transmission case 2 and corresponding to the position that is about to the splined shaft 3 of describing below the hole communicating with bearing bore 18, meanwhile, offer in the bottom of transmission case 2 and corresponding to the position that is about to the shaft coupling 62 of describing below the hole communicating with shaft coupling chamber 17.In aforesaid bearing bore 18, be provided with spline clutch shaft bearing 34, spline the second bearing 35 and the bearing spacer 33 between spline clutch shaft bearing 34, spline the second bearing 35, and spline clutch shaft bearing 34, spline the second bearing 35 keep upper and lower corresponding relation each other.
Provide a splined shaft 3 of having mentioned above, the top, upper end of this splined shaft 3 has thread segment, lower end forms has spline 32(to belong to common practise), the upper end of splined shaft 3 be rotatably assorted with aforesaid spline clutch shaft bearing 34, spline the second bearing 35 in the position corresponding to aforementioned bearings chamber 18 and by the hole communicating with bearing bore 18 in probe in aforesaid transmission case chamber 21.As shown in Figure 1, form and have a thread segment at the top, upper end of splined shaft 3, on described thread segment, arrange nut 37.Stretch towards the tube chamber direction of outer tube 161 at the cavity by way of transmission case holder 1 and after passing holder base plate 11 lower end of splined shaft 3, and be arranged with a splined shaft slip cap 31, the upper end of splined shaft slip cap 31 is connected with servo feed controlling organization 6, and the lower end of splined shaft slip cap 31 is positioned at the tube chamber of outer tube 161, and be connected with workpiece drilling sector 5.
Provide a splined shaft driving mechanism 4 rotating for ordering about aforesaid splined shaft 3, this splined shaft driving mechanism 4 preferably but not the structure being definitely limited to is as follows: comprise the first servomotor 41, large synchronous pulley 42, small synchronous pulley 43 and driving-belt 44, the first servomotor 41 is fixed on the bottom of described transmission case 2 by one group of motor hold-down screw, fix back to a side in transmission case chamber 21 with transmission case 2, the first motor shaft 411 of this first servomotor 41 is in the bottom of transmission case 2 is stretched over described transmission case chamber 21, large synchronous pulley 42 is positioned at transmission case chamber 21 and is nested with on the first motor shaft 411, escape in motor shaft 411 in order to prevent large synchronous pulley 42, therefore be limited by a trim ring 421, specifically: by trim ring screw 4211, the screw hole of trim ring 421 and the first motor shaft 411 crown centers is fixed.Small synchronous pulley 43 is positioned at transmission case chamber 21, and is nested with in the upper end of aforementioned splined shaft 3, and locked by aforesaid nut 37 spacing, to prevent that this small synchronous pulley 43 from escaping in splined shaft 3.One end of driving-belt 44 is nested with on large synchronous pulley 42, and the other end of driving-belt 44 is nested with on small synchronous pulley 43.
Please continue to refer to Fig. 1, described servo feed controlling organization 6 comprises the second servomotor 61, shaft coupling 62, ball-screw 63, feed screw nut 64, sliding shoe 65, stroke contact 67, driver adjustment plate 66, the first row degree level sensor 68 and the second stroke limit sensor 69.The second described servomotor 61 is fixed on the bottom in transmission case chamber 21 by one group of hold-down screw, the second motor shaft 611 of this second servomotor 61 is stretched in the shaft coupling chamber 17 at transmission case holder 1 top in by the hole communicating with shaft coupling chamber 17 from the bottom in transmission case chamber 21, shaft coupling 62 is positioned at shaft coupling chamber 17 and is fixed on the second motor shaft 611, specifically: the second motor shaft 611 connects with the motor axis hole 621 in the middle of shaft coupling 62.Described feed screw nut 64 is arranged on one end of sliding shoe 65, the other end of sliding shoe 65 is nested with on splined shaft slip cap 31 and with splined shaft slip cap 31 and fixes, concrete upper: on the other end of sliding shoe 65, be fixed with a slip cap holder 36, described slip cap holder 36 is formed and is fixedly connected with described splined shaft slip cap 31 by securing member.Here it should be noted that: both both can be connected and fixed described slip cap holder 36 and described sliding shoe 65 after split production again, also can form by integral production.The lead screw shaft 631 of described ball-screw 63 upper ends is bearing in rotationally on transmission case holder 1 by a pair of stacked leading screw bearing 632 and is insinuated in shaft coupling chamber 17 and fixes with the lower end of shaft coupling 62, the middle part of ball-screw 63 and feed screw nut 64 are rotatably assorted, and the lead screw shaft of ball-screw 63 lower ends is bearing in aforesaid lead screw shaft bearing 635 rotationally, the first row degree level sensor 68 and the second stroke limit sensor 69 are separately positioned on the upper and lower of driver adjustment plate 66 short transverses, described driver is adjusted plate 66 and is fixed on the left wallboard 14 of holder of transmission case holder 1, in sensor adjustment block 66, offer the adjustment tank 661 that regulates the first row degree level sensor 68 and the second stroke limit sensor 69 installation sites for convenient, described stroke contact 67 is fixed on sliding shoe 65 on the side of left wallboard 14 1 sides of holder, and corresponding to the first row degree level sensor 68, between the second stroke limit sensor 69.
In the shaft coupling chamber 17 of described transmission case holder 1, be also provided with bearing setscrew nut 633 and bearing platen 634, described bearing setscrew nut 633 is positioned at the below of shaft coupling 62 and is fixed in the lead screw shaft 631 of ball-screw 63 upper ends, and described bearing platen 634 is fixedly mounted on the top of leading screw bearing 632.On the right wallboard 12 of holder of described transmission case holder 1, be provided with a pair of guide rail 13 that faces each other and be arranged in parallel along short transverse, correspondingly, on the side of right wallboard 12 1 sides of holder, a track roller 131 is installed rotationally at described sliding shoe 65, described track roller 131 passes through roller shaft 1311 hub setting rotationally on sliding shoe 65 and between pair of guide rails 13, the guide effect of splined shaft 3 mainly plays in this mechanism, and eliminate by regulating the distance between pair of guide rails 13 accumulated error producing in assembling process, improve the linear precision of splined shaft 3, play vital effect for the High-speed machining of diameter holes.
In the time that the first servomotor 41 of aforementioned splined shaft driving mechanism 4 is worked, drive large synchronous pulley 42 by the first motor shaft 411, because driving-belt 44 is connected between large and small synchronous pulley 42,43, therefore drive small synchronous pulley 43 by driving-belt 44, because small synchronous pulley 43 is fixed on the upper end of splined shaft 3, therefore drive splined shaft 3 to rotate by small synchronous pulley 43, thereby drive workpiece drilling sector 5 by the spline 32 on splined shaft 3.In this process, in the time that the second servomotor 61 is worked, drive shaft coupling 62 by the second motor shaft 611, and then drive ball-screw 63 to rotate by shaft coupling 62, again because sliding shoe 65 is coordinated with ball-screw 63 transmissions by feed screw nut 64, and sliding shoe 65 is fixedly connected with splined shaft slip cap 31 by slip cap holder 36, therefore in the time that ball-screw 63 rotates, drive sliding shoe 65 descending through feed screw nut 64, and play the guiding role in the interior slippage of pair of guide rails 13 by the track roller 131 on sliding shoe 65, thereby drive splined shaft slip cap 31 descending.In said process, ensure the splined shaft of workpiece drilling sector 5 sleeve rotating that is in transmission connection by the spline 32 on splined shaft 3, drive the splined shaft sleeve pipe that is in transmission connection descending by splined shaft slip cap 31 simultaneously.According to set parameter and in the time that stroke contact 67 touches the second stroke limit sensor 69, the first servomotor 41 is quit work, the second servomotor 61 reverse operations (the second motor shaft 611 produces and aforementioned contrary direction rotation) simultaneously, sliding shoe 65 is up, drive splined shaft slip cap 31 up, drive workpiece drilling sector 5 up by splined shaft slip cap 31.In the time that stroke contact 67 hits the first row degree level sensor 68, the second servomotor 61 work that alters course again, and the first servomotor 41 is also worked.
The structure of above mentioned workpiece drilling sector 5 and operating principle are open in the utility model patent of the applicant's Granted publication CN203330429U, therefore be not here described in detail, only associated components is sketched: this workpiece drilling sector 5 comprises inner sleeve 51, be in transmission connection sleeve pipe and drilling cuttings cutter of splined shaft clamps 52, inner sleeve 51 is slidably matched with aforementioned outer tube sliding seat 1611, and the slip cap Connection Block on the upper end of this inner sleeve 51 and splined shaft slip cap 31 is spirally connected, and the lower end of inner sleeve 51 is connected with the outer wall thread of inner sleeve Connection Block, the lower end of the upper end of splined shaft joint sleeve and described splined shaft 3 is in transmission connection, with splined shaft 3 on spline 32 be in transmission connection, drive its rotation by spline 32, form and have drilling cutters to clamp 52 in the be in transmission connection lower end of sleeve pipe of this splined shaft.
Use time of the present invention, the present invention is clamped on the column on lathe or similar equipment by the support arm (meaning not shown in the figures) being disposed on outer tube 161, and make the top of workpiece drilling sector 5 corresponding to the workbench of lathe, pack drilling cutters into drilling cutters that drilling cutters clamps in the middle of 52 and install in taper hole, by applicant's description of the course of work to splined shaft driving mechanism 4 and servo feed controlling organization 6 in the above, by drilling cutters, to workpiece, drilling goes out required hole.
Claims (8)
1. a two servo feed high speed and precision drill unit, comprise transmission case holder (1), being fixed on the top of transmission case holder (1) and formation has the transmission case (2) of transmission case chamber (21), with longitudinal cantilever position pivotable be arranged on transmission case (2) and be insinuated into the splined shaft (3) in transmission case chamber (21), be arranged on splined shaft driving mechanism (4) on transmission case (2) and that be in transmission connection with splined shaft (3) in transmission case chamber (21), be connected with splined shaft (3) for the workpiece drilling sector (5) to workpiece drilling and for ordering about the servo feed controlling organization (6) of described workpiece drilling sector (5) upstream or downstream, it is characterized in that: described splined shaft driving mechanism (4) comprises the first servomotor (41), large synchronous pulley (42), small synchronous pulley (43) and driving-belt (44), the first servomotor (41) is fixed on the bottom of described transmission case (2), first motor shaft (411) of this first servomotor (41) is in the bottom of transmission case (2) is stretched over described transmission case chamber (21), large synchronous pulley (42) is positioned at transmission case chamber (21) and fixing with the first motor shaft (411), small synchronous pulley (43) is positioned at transmission case chamber (21) and is fixed on the upper end of described splined shaft (3), one end of driving-belt (44) is nested with on large synchronous pulley (42), and the other end is nested with on small synchronous pulley (43), described servo feed controlling organization (6) comprises the second servomotor (61), shaft coupling (62), ball-screw (63), feed screw nut (64), sliding shoe (65), stroke contact (67), driver is adjusted plate (66), the first row degree level sensor (68) and the second stroke limit sensor (69), the second servomotor (61) is fixed on the bottom of transmission case chamber (21), second motor shaft (611) of this second servomotor (61) is in the bottom of transmission case chamber (21) is stretched over the shaft coupling chamber (17) at transmission case holder (1) top, shaft coupling (62) is positioned at shaft coupling chamber (17) and is fixed on the second motor shaft (611), feed screw nut (64) is arranged on one end of sliding shoe (65), the lead screw shaft (631) of ball-screw (63) upper end is bearing in rotationally transmission case holder (1) above by leading screw bearing (632) and is insinuated in shaft coupling chamber (17) fixing with shaft coupling (62), the middle part of ball-screw (63) and feed screw nut (64) are rotatably assorted, and the lead screw shaft of ball-screw (63) lower end is bearing in a lead screw shaft bearing (635) rotationally, described lead screw shaft bearing (635) is fixed on the holder base plate (11) of transmission case holder (1), the first row degree level sensor (68) and the second stroke limit sensor (69) are separately positioned on the upper and lower of driver adjustment plate (66) short transverse, described driver is adjusted plate (66) and is fixed on the left wallboard of holder (14) of transmission case holder (1), described stroke contact (67) is fixed on sliding shoe (65) on the side of left wallboard (14) one sides of holder, and corresponding to the first row degree level sensor (68), between the second stroke limit sensor (69), the right wallboard of holder (12) of described transmission case holder (1) is above provided with a pair of guide rail (13) that faces each other and be arranged in parallel along short transverse, correspondingly, on the side of right wallboard (12) one sides of holder, a track roller (131) is installed rotationally at described sliding shoe (65), described track roller (131) is positioned between pair of guide rails (13).
2. according to claim 1 pair of servo feed high speed and precision drill unit, it is characterized in that the top of described transmission case holder (1) and form and have a bearing bore (18) in the position corresponding to described splined shaft (3), in this bearing bore (18), be provided with spline clutch shaft bearing (34), spline the second bearing (35) and be positioned at spline clutch shaft bearing (34), bearing spacer (33) between spline the second bearing (35), the upper end of described splined shaft (3) is bearing on spline clutch shaft bearing (34) and spline the second bearing (35) rotationally, and after spline clutch shaft bearing (34), be stretched in described transmission case chamber (21) leaning out, and the lower end of splined shaft (3) is arranged with a splined shaft slip cap (31) slidably, described splined shaft slip cap (31) is slidably matched with described holder base plate (11), and be connected with described workpiece drilling sector (5), be provided with at the top of described transmission case (2) for described splined shaft driving mechanism (4) and described servo feed controlling organization (6) and cover the case lid (22) protecting, servomotor cover (23).
3. according to claim 1 pair of servo feed high speed and precision drill unit, is characterized in that the other end of described sliding shoe (65) is nested with upper at described splined shaft slip cap (31) and fixing with splined shaft slip cap (31).
4. according to claim 3 pair of servo feed high speed and precision drill unit, on the other end of the sliding shoe (65) described in it is characterized in that, be installed with a slip cap holder (36), between described slip cap holder (36) and described splined shaft slip cap (31), structure is for being fixedly connected with.
5. according to claim 1 pair of servo feed high speed and precision drill unit, transmission case holder (1) described in it is characterized in that is on holder base plate (11) and be extended with an outer tube connector (16) towards a side of described workpiece drilling sector (5), this outer tube connector (16) is corresponding with described splined shaft slip cap (31), and in the upper upper end that connects an outer tube (161) with vertical cantilever state of this outer tube connector (16), and the lower end of outer tube (161) is connected with an outer tube sliding seat (1611), described splined shaft slip cap (31) is through being stretched in the tube chamber of outer tube (161) after outer tube connector (16), described workpiece drilling sector (5) is in transmission connection with the lower end of described splined shaft (3) in the tube chamber of outer tube (161), and be slidably matched with described outer tube sliding seat (1611).
6. according to claim 1 pair of servo feed high speed and precision drill unit, it is characterized in that being provided with at least one case lid fixed bolt (221) in the transmission case chamber (21) of described transmission case (2), the middle part of the length direction of described case lid (22) and case lid screw fixed leg (221) are fixing.
7. according to claim 1 pair of servo feed high speed and precision drill unit, it is characterized in that being also provided with bearing setscrew nut (633) and bearing platen (634) in described shaft coupling chamber (17), described bearing setscrew nut (633) is positioned at the below of shaft coupling (62) and is fixed in the lead screw shaft (631) of ball-screw (63) upper end, and described bearing platen (634) is fixedly mounted on the top of leading screw bearing (632).
8. according to claim 1 pair of servo feed high speed and precision drill unit, is characterized in that offering adjustment tank (661) in described sensor adjustment block (66).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095080.3A CN103878415A (en) | 2014-03-14 | 2014-03-14 | High-speed precise double servo feed drilling power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095080.3A CN103878415A (en) | 2014-03-14 | 2014-03-14 | High-speed precise double servo feed drilling power head |
Publications (1)
| Publication Number | Publication Date |
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Cited By (5)
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| CN104907646A (en) * | 2015-06-15 | 2015-09-16 | 速技能机械制造(常熟)有限公司 | High-precision, large-diameter and servo-feeding tapping power head |
| CN105772786A (en) * | 2015-10-28 | 2016-07-20 | 镇江裕久智能装备股份有限公司 | Online type automatic drilling machine |
| CN110125450A (en) * | 2019-04-25 | 2019-08-16 | 上海煤气第一管线工程有限公司 | A kind of pressure pipeline punching device under pressure |
| CN111843059A (en) * | 2020-07-27 | 2020-10-30 | 湖北洪南机械制造有限公司 | Tapping machine power head |
| WO2023000648A1 (en) * | 2021-07-20 | 2023-01-26 | 北京天泽电力集团有限公司 | Automatic feeding device |
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| CN104907646A (en) * | 2015-06-15 | 2015-09-16 | 速技能机械制造(常熟)有限公司 | High-precision, large-diameter and servo-feeding tapping power head |
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| CN105772786B (en) * | 2015-10-28 | 2018-06-26 | 镇江裕久智能装备股份有限公司 | A kind of online automatic drilling machine |
| CN110125450A (en) * | 2019-04-25 | 2019-08-16 | 上海煤气第一管线工程有限公司 | A kind of pressure pipeline punching device under pressure |
| CN111843059A (en) * | 2020-07-27 | 2020-10-30 | 湖北洪南机械制造有限公司 | Tapping machine power head |
| WO2023000648A1 (en) * | 2021-07-20 | 2023-01-26 | 北京天泽电力集团有限公司 | Automatic feeding device |
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Application publication date: 20140625 |