CN105458343A - Automatic drilling machine - Google Patents
Automatic drilling machine Download PDFInfo
- Publication number
- CN105458343A CN105458343A CN201610083669.0A CN201610083669A CN105458343A CN 105458343 A CN105458343 A CN 105458343A CN 201610083669 A CN201610083669 A CN 201610083669A CN 105458343 A CN105458343 A CN 105458343A
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- clutch
- gear
- axle
- feeding
- travel
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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
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/32—Feeding working-spindles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to an automatic drilling machine. The automatic drilling machine comprises an automatic feeding system and a transmission mechanism, wherein the automatic feeding system comprises a main shaft connected with a drill bit, an advancing shaft linked with the main shaft, a worm gear, a worm, a feeding clutch and a clutch control mechanism, the worm is linked with the power output end of a driving device through the transmission mechanism, the advancing shaft is sleeved with the feeding clutch, the feeding clutch and the advancing shaft can rotate synchronously, the advancing shaft is sleeved with the worm gear in an idle mode, the worm gear is opposite to the feeding clutch, and the clutch control mechanism can control the feeding clutch to act so as to make the opposite end faces of the feeding clutch and the worm gear meshed or separated. Compared with the prior art, the automatic drilling machine has the advantages that the opposite end faces of the feeding clutch and the worm gear are made to be meshed under the action of the clutch control mechanism, so that circumnutation of the worm gear is achieved to drive the advancing shaft to rotate; axial feeding of the main shaft is achieved through interaction of the advancing shaft and the main shaft. Compared with an existing manual feeding method, operation is easy, and drilling quality is high.
Description
Technical field
The present invention relates to drilling machine field, particularly relate to a kind of automatic drilling machine.
Background technology
For carrying out installation to rail, need to punch uniformly on rail as required, the rail after punching can utilize the circular hole on rail to be interconnected.Rail bonding drill generally comprises the clamping device, feed arrangement and the drilling equipment that clamp rail, the wherein general feeding manually of existing rail bonding drill, if the patent No. is the Chinese utility model patent " Portable rail drilling machine " of ZL200620023367.6 (Authorization Notice No. is CN2875656Y); Application number is the drilling machine that the patents such as the Chinese invention patent " a kind of rail card punch " of 201410674314.X (application publication number CN104439388A) all disclose a kind of hand feed.
The mode of above-mentioned drilling machine manually feeding completes bore operation with the position making drill bit and be fed into needs, this mode complex operation, not only waste time and energy, and each feeding all needs operator's manual operation to complete, due to the destabilizing factor of manual operation, the quality fluctuation of bore operation is comparatively large, and carry out bore operation for a long time, the labour intensity of workman is also larger.
Summary of the invention
Technical problem to be solved by this invention is the automatic drilling machine providing the auto-feed of a kind of energy for prior art.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of automatic drilling machine, comprise frame, this frame is provided with drill bit and drive unit, it is characterized in that, described frame is also provided with auto feed system and transmission mechanism, this auto feed system comprises the main shaft be connected with drill bit, the axis of travel linked with main shaft, worm gear, the worm screw engaged with worm gear, feeding clutch and clutch control mechanism, this worm screw is linked by the clutch end of transmission mechanism and drive unit, this feeding clutch to be socketed in axis of travel and can with axis of travel synchronous axial system, and described worm gear empty set in axis of travel and the side of worm gear be oppositely arranged with the corresponding end face of feeding clutch, described clutch control mechanism can control feeding clutch action and make feeding clutch engage each other with the opposing end surface of worm gear or be separated.
Further, described clutch control mechanism comprises clutch slider, take-up housing, driving lever and clutch from lock set, described clutch slider is placed in this take-up housing, and this clutch slider can relative to take-up housing displacement under driving lever drives, and force in this feeding clutch by clutch from lock set locking, thus the opposing end surface of this feeding clutch and worm gear is engaged each other.
Further again, between described clutch slider and take-up housing, clutch slider displacement is provided with the first back-moving spring, described clutch comprises travel screw, travel synchronization block, clutch self-locking block, stroke adjustment nut and the first mounting blocks and the second mounting blocks that arrange along axis feeding direction from lock set, frame is fixed on respectively by the first mounting blocks and the second mounting blocks in the two ends of described travel screw, and wherein the trip screw rod to be inserted in the first installing hole being opened in the first mounting blocks and to be provided with the second back-moving spring in this first installing hole; Described clutch self-locking block thread bush is connected on travel screw, and this clutch self-locking block is provided with a self-lock pin, the end face of this self-lock pin keeps the trend offseted with clutch slider seat side under the effect of the second back-moving spring, this side offers one for this self-lock pin insert pin-and-hole and this pin-and-hole is through to clutch slider, when above-mentioned clutch slider moves relative to take-up housing under driving lever drives, self-lock pin is taken advantage of a situation and is inserted pin-and-hole and lock clutch slider; Described travel synchronization block empty set is on travel screw and link with main shaft, and described stroke adjustment nut thread cover to be connected on travel screw and to be positioned at travel synchronization block front relative to axis feeding direction.
Above-mentioned driving lever can act on clutch slider, clutch slider is made to be subjected to displacement relative to take-up housing and to act on feeding clutch, in the present invention, one end of described driving lever offers a through hole, be equipped with the fixed axis that two ends are fixed with take-up housing respectively in this through hole, and one end of this side end of driving lever and clutch slider is hinged, like this when forcing in the free end of driving lever, power can be conducted to clutch slider by the other end of driving lever, and clutch slider is moved relative to take-up housing.
Feeding clutch is acted on better for making clutch slider, described feeding clutch and the phase dorsal part of worm gear are provided with can to the semicircle pressure ring of feeding clutch along axis of travel axial force distribution, the two ends of this pressure ring and feeding clutch is hinged and center horizontal-extending has a push rod, the end of this push rod is formed with U-shaped mounting groove, be hinged with a roller in this U-shaped mounting groove, the other end of described clutch slider is formed can inclined-plane interactional with the wheel face of this roller.
As preferably, described transmission mechanism comprises the Multi-stage transmission gear train be connected with the clutch end of drive unit, this Multi-stage transmission gear train comprises the first transmission gear wheel engaged with the driving gear of the clutch end of drive unit, first drive pinion, second transmission gear wheel, second drive pinion, 3rd transmission gear wheel, 3rd drive pinion, 4th transmission gear wheel and the 4th drive pinion engaged with the driven gear on worm screw, wherein the first transmission gear wheel and the first drive pinion are arranged on the first axle, second transmission gear wheel and the second drive pinion are arranged on the second axle, 3rd transmission gear wheel and the 3rd drive pinion are arranged on the 3rd axle, 4th transmission gear wheel and the 4th drive pinion are arranged on the 4th axle.
Further, the increase of the feeding moment of torsion caused for avoiding bit wear or damage is on the impact of drilling machine, described 3rd transmission gear wheel comprises the overload-release clutch and the gear mass of empty set on the 3rd axle that are arranged on also preset security moment of torsion on the 3rd axle, described overload-release clutch and the 3rd axle synchronous axial system and gear mass empty set are on the 3rd axle, and the opposing end surface of this overload-release clutch and gear mass is respectively arranged with can intermeshing tooth.Overload-release clutch is preset with safe torque, when drilling machine course feed, overload-release clutch and gear mass are meshed into one, and the 3rd transmission gear wheel drives on the 3rd axle and rotates, and pass through the 3rd drive pinion by conducting power to driven gear, thus machine course feed; When exceeding the safe torque of overload-release clutch when causing feeding moment of torsion to increase because of bit wear or damage, overload-release clutch stops operating and throws off with gear mass, cause that the 3rd axle stops operating and gear mass dallies on the 3rd axle, now conducting power interrupts, machine feed-disabling; When the feeding moment of torsion of machine recovers normally, overload-release clutch engages again with gear mass, and conducting power recovers, mechanical recovery course feed.Visible; 3rd axle arranges overload-release clutch and can carry out overload protection to the auto-feed of machine, simultaneously because the moment of torsion of the 3rd axle is little, overload-release clutch is arranged on the 3rd axle; convenient control, also can make the internal structure of drilling machine compacter, simple in addition.
Automatic drilling machine in the present invention also comprises folder rail mechanism, this folder rail mechanism comprises with the degree of tightness screw rod of operating grip, grab, grab Connection Block and the locating clamp plate with rail specification adaptation, described locating clamp plate is two pieces and sets up the left and right sides with drill bit separately, forms the space for clamping rail between described grab and locating clamp plate; Described grab comprises the rocking arm of hook portion for clamping rail and hook portion upper end, one end and the drill headstock of described grab Connection Block are fixed, the other end and rocking arm hinged, described degree of tightness screw rod comprises screw rod and lower screw rod, on this upper and lower screw rod, the pitch of screw thread is identical and rotation direction is contrary, and upper and lower screw rod be respectively fitted with revolve slide block with the upper and lower of its threaded engagement, and described backspin slide block and grab Connection Block fix and on revolve slide block and rocking arm is fixed.Like this when rotating degree of tightness screw rod by operating grip, upper and lower screw rod drives grab and locating clamp plate move toward one another respectively and clamps rail, is the twice of conventional drilling machine to the clamping speed of rail, presss from both sides rail efficiency and significantly improves.
Further, this automatic drilling machine also comprises gear, this gear comprises the variable-speed shaft be connected with main shaft, the gear teeth wheels being arranged at this variable-speed shaft, the gear teeth that links wheels, the second axle and is located at the multi-joint shifting slide gear that this second axle also can slide along the second axle, described gear teeth wheels comprise the different change-speed gearing of multiple number of teeth, and described multi-joint shifting slide gear is disposed with the corresponding shifting slide gear also engaged of multiple and above-mentioned change-speed gearing.Multi-joint like this shifting slide gear can along in the second axle sliding process, realize the change-speed gearing of the different number of teeth and engaging of corresponding shifting slide gear, realize the fast of variable-speed shaft convert at a slow speed and conduct to main shaft, finally realize the fast of main shaft and convert at a slow speed, be i.e. the speed conversion of drilling machine drilling speed.
Further, described multi-joint shifting slide gear is provided with for driving it along the Control Component of the second axle movement, this Control Component comprises knob, one end is connected with knob swing arm, pulling axis, shifting block and guide pillar, the setting direction of described guide pillar is parallel with the second axle, one end of described shifting block is connected with multi-joint shifting slide gear, the other end forms lasso and is set in guide pillar and shifting block can be moved along guide pillar, the outer face of this lasso is provided with bearing pin, one end of described pulling axis is connected with swing arm and the other end offers U-lag, and described bearing pin is flush-mounted in U-lag.Multi-joint shifting slide gear can be made better along the second axle slippage, thus realize multi-joint shifting slide gear preferably and engage with corresponding change-speed gearing, and then the penetration rate of drilling machine is adjusted to the gear of needs.
Compared with prior art, the invention has the advantages that: in automatic drilling machine of the present invention, worm gear empty set is in axis of travel, therefore during worm screw drive worm gear wheel, axis of travel can not be driven to rotate, when the effect by clutch control mechanism makes feeding clutch engage with the opposing end surface of worm gear, feeding clutch and worm gear are combined into one, the circumnutation realizing worm gear drives the revolution of axis of travel, and the axial feed motion of main shaft is realized by the interaction of axis of travel and main shaft, compared with the hand feed of prior art, auto-feed mode in the present invention, simple to operate, drilling quality is better.
Accompanying drawing explanation
Fig. 1 is the structural representation in the embodiment of the present invention 1 under automatic drilling machine using state;
Fig. 2 is the structural representation of automatic drilling in the embodiment of the present invention 1;
Fig. 3 is the other direction structural representation of Fig. 2;
Fig. 4 is the partial structurtes schematic diagram of automatic drilling machine in the embodiment of the present invention 1;
Fig. 5 is the other direction structural representation of Fig. 4;
Fig. 6 is the partial structurtes exploded view of auto feed system in the embodiment of the present invention 1;
Fig. 7 is the other direction structural representation of Fig. 6;
Fig. 8 is another partial structurtes classification figure of auto feed system in the embodiment of the present invention 1;
Fig. 9 is the STRUCTURE DECOMPOSITION figure of knob in the embodiment of the present invention 1;
Figure 10 is the other direction structural representation of Fig. 9;
Figure 11 is the chassis structure schematic diagram of knob in the embodiment of the present invention 1;
Figure 12 is the structural representation of shifting block in the embodiment of the present invention 1;
Figure 13 is the partial structurtes schematic diagram of automatic drilling machine in the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment 1:
As shown in Fig. 1 ~ 12, a kind of auto-feed drilling machine, comprises frame 1, this frame 1 is provided with drill bit 111, drive unit, auto feed system 2, transmission mechanism 4, folder rail mechanism 3 and gear 5.In the present embodiment, drive unit is motor 104 and frame 1 is also provided with the rechargeable battery 103 be electrically connected with this motor 104, and in the present embodiment, this rechargeable battery 103 is lithium battery.
Above-mentioned transmission mechanism 4 comprises the Multi-stage transmission gear train be connected with the clutch end of drive unit, this Multi-stage transmission gear train comprises the first transmission gear wheel 411 engaged with the driving gear 105 of the clutch end of drive unit, first drive pinion 412, second transmission gear wheel 521, second drive pinion 522, 3rd transmission gear wheel 421, 3rd drive pinion 422, 4th transmission gear wheel 431 and the 4th drive pinion 432 engaged with the driven gear 106 on worm screw 29, wherein the first transmission gear wheel 411 and the first drive pinion 412 are arranged on the first axle 41, second transmission gear wheel 521 and the second drive pinion 522 are arranged on the second axle 52, 3rd transmission gear wheel 421 and the 3rd drive pinion 422 are arranged on the 3rd axle 42, 4th transmission gear wheel 431 and the 4th drive pinion 432 are arranged on the 4th axle 43.
Automatic feed mechanism comprises the main shaft 21 be connected with drill bit 111, the axis of travel 22 linked with main shaft 21, worm gear 23, the worm screw 29 engaged with worm gear 23, feeding clutch 24 and clutch control mechanism, wherein main shaft 21 realizes engaging respectively by the tooth bar 211 outside main shaft 21 and axis of travel 22 with axis of travel 22, thus realizes interlock.Feeding clutch 24 to be socketed in axis of travel 22 and can with axis of travel 22 synchronous axial system, worm gear 23 empty set in axis of travel 22 and the side of worm gear 23 be oppositely arranged with the corresponding end face of feeding clutch 24, clutch control mechanism can control feeding clutch 24 action and make feeding clutch 24 engage each other with the opposing end surface of worm gear 23 or be separated, namely when clutch control mechanism makes feeding clutch 24 engage with the opposing end surface of worm gear 23, feeding clutch 24 and worm gear 23 are integrated, the circumnutation realizing worm gear 23 drives the revolution of axis of travel 22, and the axial feed motion of main shaft 21 is realized by axis of travel 22 and the interaction of main shaft 21.For convenience of operating at rather dark place, the outside of main shaft 21 is provided with an illuminating lamp 102.
Particularly, clutch control mechanism comprises clutch slider 26, take-up housing 25, driving lever 27 and clutch from lock set, this clutch slider 26 is placed in take-up housing 25, and this clutch slider 26 can relative to take-up housing 25 upper and lower displacement under driving lever 27 drives, and act on this feeding clutch 24 by clutch from lock set locking, thus this feeding clutch 24 is engaged each other with the opposing end surface of worm gear 23.Further, the first back-moving spring 262 is provided with bottom clutch slider 26 and between take-up housing 25, stretch out in the middle part of one end of clutch slider 26 and be formed with an inclined-plane 261, the other end caves inward and forms hinged seat and hinged with one end of driving lever 27, this side place of driving lever 27 also offers a through hole simultaneously, is equipped with the fixed axis 271 that two ends are fixed with take-up housing 25 respectively in this through hole.Above-mentioned feeding clutch 24 and the phase dorsal part of worm gear 23 are provided with can to the semicircle pressure ring 241 of feeding clutch 24 along axis of travel 22 axial force distribution, the two ends of this pressure ring 241 and feeding clutch 24 is hinged and center horizontal-extending has a push rod 242, the end of this push rod 242 is formed with U-shaped mounting groove, be hinged with a roller 243 in this U-shaped mounting groove, above-mentioned inclined-plane 261 can interact with the wheel face of roller 243.When upwards mentioning driving lever 27, by leverage, the clutch slider 26 being arranged in take-up housing 25 is pressed down, inclined-plane 261 on clutch slider 26 contacts concurrent raw relative motion with roller 243, push rod 242 is made to compress pressure ring 241 in feeding clutch 24 vertically, thus the tooth on feeding clutch 24 and worm gear 23 opposing end surface is engaged, make both be combined as a whole, realize the revolution circumnutation of worm gear 23 being driven axis of travel 22, and then drive to main shaft 21, realize the axial feed motion of main shaft 21.
Further, clutch comprises the travel screw 28, travel synchronization block 283, clutch self-locking block 284, stroke adjustment nut 282 and the first mounting blocks 281 and the second mounting blocks 285 that arrange along main shaft 21 direction of feed from lock set.Frame 1 is fixed on respectively by the first mounting blocks 281 and the second mounting blocks 285 in the two ends of travel screw 28, particularly, one end of travel screw 28 to be inserted in the first installing hole 288 being opened in the first mounting blocks 281 and to be provided with the second back-moving spring 287 in this first installing hole 288, and the other end of travel screw 28 is inserted in the second mounting blocks 285 and this second mounting blocks 285 is fixed on bottom take-up housing 25.Above-mentioned clutch self-locking block 284 thread bush is connected on travel screw 28, and this clutch self-locking block 284 is provided with a self-lock pin 286, the trend that the end face of this self-lock pin 286 keeps under the effect of the second back-moving spring 287 and take-up housing 25 side offsets, this side offers a pin-and-hole 251 supplying this self-lock pin 286 to insert and this pin-and-hole 251 is through to clutch slider 26.Such clutch slider 26 is positioned at the upper position of take-up housing 25 under the effect of the first back-moving spring 262, when clutch slider 26 being pressed down when upwards mentioning driving lever 27 and making, in the pin-and-hole 251 that self-lock pin 286 inserts, clutch slider 26 is locked by clutch self-locking block 284, thus feeding clutch 24 is engaged with worm gear 23 all the time, ensure the reliability service of main shaft 21 feed motion.Travel synchronization block 283 empty set on travel screw 28 and its lower end and main shaft 21 fix, stroke adjustment nut 282 thread bush to be connected on travel screw 28 and between travel synchronization block 283 and the first mounting blocks 281.When main shaft 21 drives lower feeding in axis of travel 22, also move with main shaft 21 with the travel synchronization block 283 that main shaft 21 is fixedly connected with, when travel synchronization block 283 marches to stroke adjustment nut 282, drive travel screw 28 forward slip together, thus the self-lock pin 286 on clutch self-locking block 284 is skidded off from pin-and-hole 251, clutch slider 26 is reset to the top of take-up housing 25 under the effect of the first back-moving spring 262, inclined-plane 261 on clutch slider 26 departs from the roller 243 on clutch, feeding clutch 24 and worm gear 23 are thrown off, main shaft 21 feed-disabling.For convenience of operation, the end of axis of travel 22 is provided with a handwheel 221, can be resetted by this handwheel 221 to main shaft 21.Therefore, the flexible control that can realize main shaft 21 axial feed according to the relative position of drilling depth adjustment stroke adjusting nut 282 on travel screw 28.
Above-mentioned folder rail mechanism 3 comprises with the degree of tightness screw rod 31 of operating grip 313, grab 33, grab Connection Block 32 and the locating clamp plate 36 with rail specification adaptation, wherein, locating clamp plate 36 is two pieces and sets up the left and right sides with drill bit 111 separately, forms the space for clamping rail between grab 33 and locating clamp plate 36.Grab 33 comprises the rocking arm 331 of hook portion 332 for clamping rail and hook portion 332 upper end, and for the ease of clamping rail, the two ends up and down of contiguous grab 33 side of locating clamp plate 36 form the locator protrusions 361 offseted with rail belly respectively.Frame 1 has the drill headstock 11 for installing drill bit 111, one end and the drill headstock 11 of above-mentioned grab Connection Block 32 are fixed, the other end and rocking arm 331 hinged, particularly, grab Connection Block 32 is provided with U-shaped groove 321, the middle part of rocking arm 331 is folded in the opening part of U-shaped groove 321 and distinguishes hinged with the both sides cell wall of U-shaped groove 321.Degree of tightness screw rod 31 comprises screw rod 311 and lower screw rod 312, this upper and lower screw rod 311, on 312, the pitch of screw thread is identical and rotation direction is contrary, in the present embodiment, upper screw rod 311 is dextrorotation and lower screw rod 312 is left-handed, and upper and lower spiral shell 311, be respectively fitted with on 312 and revolve slide block 34,35 with the upper and lower of its threaded engagement, and backspin slide block 35 be fixed on U-shaped groove 321 bottom and on revolve slide block 34 and fix with rocking arm 331 upper end.Like this when rotating degree of tightness screw rod 31 by operating grip 313, upper and lower spiral shell 311,312 drive grab 33 and locating clamp plate 36 move toward one another respectively and clamp rail, for making grab 33 comparatively steady with the move toward one another of locating clamp plate 36, U-shaped groove 321 horizontally set is also parallel with the bearing of trend of drill bit 111.In addition, because grab 33 is relative with drill bit 111, likely touch with grab 33 when drill bit 111 bores rail belly, after general boring action completes, drill bit 111 can not stop operating at once, to wear and tear hook portion 332, in the present embodiment for avoiding the drill bit 111 rotated, hook portion 332 comprises the space being connected to and forming accommodating drill bit 111 end between the connecting axle 334 of rocking arm 331 lower end and contact roller 333, two contact roller 333 being connected to these connecting axle 334 two ends.During folder rail, holding operation handle 313 rotates degree of tightness screw rod 31, upper screw rod 311 relative on revolve slide block 34 dextrorotation and lower screw rod 312 is left-handed relative to backspin slide block 35, drive grab 33 and locating clamp plate 36 move toward one another so respectively and clamp rail, thus with the speed of conventional drilling machine twice clamping rail, improve folder rail efficiency.
In addition, automatic drilling machine in the present embodiment can also be converted by the penetration rate of gear 5 pairs of drilling machines, and this gear 5 comprises variable-speed shaft 51, gear teeth wheels 54, second axle 52 and is located at the multi-joint shifting slide gear 53 that this second axle 52 also can slide along the second axle 52.One end of above-mentioned main shaft 21 is provided with drill bit 111, and the other end is connected with above-mentioned variable-speed shaft 51, and in the present embodiment, variable-speed shaft 51 is connected by spline form with main shaft 21, and gyration successfully can be passed to main shaft 21 by such variable-speed shaft 51.Above-mentioned gear teeth wheels 54 are arranged on variable-speed shaft 51, and in the present embodiment, these gear teeth wheels 54 are made up of the gear teeth wheels 54 that two numbers of teeth are different.This multi-joint shifting slide gear 53 is single piece, and the shifting slide gear 531 be set up in parallel by two and the groove 532 be connected between two shifting slide gears 531 form, and the number of teeth of two shifting slide gears 531 is different and corresponding and engage in above-mentioned two change-speed gearings 541.Like this when multi-joint shifting slide gear 53 horizontally slips along the second axle 52, multi-joint shifting slide gear 53 is engaged from the change-speed gearing 541 of the different number of teeth by different shifting slide gears 531, realize the fast conversion at a slow speed of variable-speed shaft 51, and then realize changing at a slow speed soon of main shaft 21, finally realize the conversion of drilling machine penetration rate.For making multi-joint shifting slide gear 53 horizontally slip along the second axle 52 better, multi-joint shifting slide gear 53 is connected with spline form with the second axle 52.
Further, horizontally slip, thus be convenient to change the penetration rate of drilling machine for controlling multi-joint shifting slide gear 53 preferably along the second axle 52, gear 5 also comprises for driving it along the Control Component of the second axle 52 movement.This Control Component comprises knob 58, one end is connected with knob 58 swing arm 6, pulling axis 57, shifting block 55 and guide pillar 56.Wherein, one end of shifting block 55 is formed with circular fork 553, this fork 553 is fastened in above-mentioned groove 532, shifting block 55 is connected with multi-joint shifting slide gear 53, shifting block 55 other end forms lasso 551 and is set on guide pillar 56 and shifting block 55 can be moved along guide pillar 56, and the setting direction of guide pillar 56 is parallel with the second axle 52 simultaneously.The outer face of above-mentioned lasso 551 is provided with bearing pin 552, and one end of pulling axis 57 is connected with swing arm 6 and the other end offers U-lag 571, and this bearing pin 552 is flush-mounted in U-lag 571, shifting block 55 is formed with pulling axis 57 and is connected.Like this when swing arm rotates under knob 58 drives, swing arm drives pulling axis 57, and pulling axis 57 makes lasso 551 move along guide pillar 56 by bearing pin 552 again, thus makes shifting block 55 drive multi-joint shifting slide gear 53 to move along the second axle 52.
In the present embodiment, the chassis 582 that knob 58 comprises operation board 581 and is arranged at below operation board 581, the bottom surface of this operation board 581 and the end face on chassis 582 form sliding distribution structure mutually, and namely this cunning distribution structure comprises the bottom surface of operation board 581 and the end face on chassis 582.In the present embodiment, the bottom surface of operation board 581 is provided with elastic steel ball 587 and spacer pin 586, and the end face on chassis 582 offers the locating hole group snapped in for this elastic steel ball 587 and the stopper slot 583 embedded for spacer pin 586.Locating hole group is made up of two locating holes 584, the distribute spacing of this two locating hole 584 on this end face is corresponding with the spacing of two change-speed gearings 541 in gear teeth wheels 54, namely when operation board 581 rotates relative to chassis 582, elastic steel ball 587 is deviate from and is slided at chassis 582 end face with operation board 581 from one of them locating hole 584, after knob 58 turns to the angle of needs, elastic steel ball 587 snaps in again in another locating hole 584, thus realize location, ensure the accuracy of drilling machine speed change.Above-mentioned stopper slot 583 to extend and the length of its length and gear teeth wheels 54 matches along the glide direction of spacer pin 586 on this end face, like this when knob 58 rotates, spacer pin 586 slides in stopper slot 583 with operating portion, effectively avoids multi-joint shifting slide gear 53 to exceed stroke.Above-mentioned swing arm 6 axially wears the operation board of knob 58 and the center on chassis successively, pulling axis 57 radial direction is connected to the end of swing arm 6, and the end of pulling axis 57 is formed with the jack 572 inserted for swing arm 6 end, the outer peripheral face of swing arm 6 is arranged with up and down two buckle projections 61, and the hole wall of operation board 581 centre bore 585 and jack 572 offers respectively the snap-fit grooves 588 snapped in for each buckle projection 61.
As fully visible, when clockwise or when rotating counterclockwise knob 58, swing arm drives pulling axis 57, the U-lag 571 of pulling axis 57 front end drives bearing pin 552 again, lasso 551 is moved along guide pillar 56, and then make the fork 553 of shifting block 55 drive multi-joint shifting slide gear 53 to horizontally slip along the second axle 52, multi-joint shifting slide gear 53 is engaged from the change-speed gearing 541 of the different number of teeth, realize the fast of variable-speed shaft 51 to convert at a slow speed, variable-speed shaft 51 drives to again main shaft 21, and then the fast of main shaft 21 is converted at a slow speed, finally realize the conversion of drilling machine drilling speed.
The course of work of this drilling machine is as follows: holding operation handle 313 rotates degree of tightness screw rod 31, clamps rail by the folder grab 33 of rail mechanism 3 and the relative motion of locating clamp plate 36.The clutch end of motor 104 drives to worm and wormwheel part by transmission mechanism 4, but worm gear 23 is placed in axis of travel 22, and therefore feed motion does not occur main shaft 21.Gear upwards mentions driving lever 27, by leverage driving lever 27, the clutch slider 26 being arranged in take-up housing 25 is pressed down, self-lock pin 286 on self-locking block is taken advantage of a situation and is inserted in pin-and-hole 251, inclined-plane 261 on clutch slider 26 contacts concurrent raw relative motion with roller 243, push rod 242 is made to compress pressure ring 241 in feeding clutch 24 vertically, thus the tooth on feeding clutch 24 and worm gear 23 opposing end surface is engaged, make both be combined as a whole, realize the revolution circumnutation of worm gear 23 being driven axis of travel 22, and then drive drives to main shaft 21, realize the axial feed motion of main shaft 21.When main shaft 21 drives lower feeding in axis of travel 22, travel synchronization block 283 also moves with main shaft 21, when travel synchronization block 283 marches to stroke adjustment nut 282, drive travel screw 28 forward slip together, thus the self-lock pin 286 on clutch self-locking block 284 is skidded off from pin-and-hole 251, clutch slider 26 is reset to the top of take-up housing 25 under the effect of the first back-moving spring 262, inclined-plane 261 on clutch slider 26 departs from the roller 243 on clutch, feeding clutch 24 and worm gear 23 are thrown off, main shaft 21 feed-disabling, drill bit 111 terminates bore operation.Now clockwise or rotate counterclockwise knob 58, swing arm drives pulling axis 57, the U-lag of pulling axis 57 front end drives again bearing pin 552, lasso 551 is moved along guide pillar 56, and then make the fork 553 of shifting block 55 drive multi-joint shifting slide gear 53 to horizontally slip along the second axle 52, multi-joint shifting slide gear 53 is engaged from the change-speed gearing 541 of the different number of teeth, realize the fast of variable-speed shaft 51 to convert at a slow speed, variable-speed shaft 51 drives to again main shaft 21, and then the fast of main shaft 21 is converted at a slow speed, finally realize the conversion of drilling machine drilling speed.
Embodiment 2:
As shown in figure 13, as different from Example 1, in embodiment 2, the 3rd transmission gear wheel 421 comprises the overload-release clutch 423 and the gear mass 424 of empty set on the 3rd axle 42 that are arranged on also preset security moment of torsion on the 3rd axle 42, described overload-release clutch 423 and the 3rd axle 42 synchronous axial system and gear mass empty set are on the 3rd axle 42, and this overload-release clutch 423 with the opposing end surface of gear mass 424 are respectively arranged with can intermeshing tooth.
Overload-release clutch 433 is preset with safe torque, like this when drilling machine course feed, overload-release clutch 423 and gear mass 424 are meshed into one, 3rd transmission gear wheel 421 drives on the 3rd axle 42 and rotates, and pass through the 3rd drive pinion 422 by conducting power to driven gear 106, thus machine course feed; When wear and tear because of drill bit 111 or damage cause feeding moment of torsion increase and exceed the safe torque of overload-release clutch 423 time, overload-release clutch 423 stops operating and throws off with gear mass 424, cause that the 3rd axle 42 stops operating and gear mass dallies on the 3rd axle 42, now conducting power interrupts, machine feed-disabling; When the feeding moment of torsion of machine recovers normally, overload-release clutch 423 engages again with gear mass 424, and conducting power recovers, mechanical recovery course feed.
Visible; 3rd axle 42 arranges overload-release clutch 423 and can carry out overload protection to the auto-feed of machine, simultaneously because the moment of torsion of the 3rd axle 42 is little, overload-release clutch 423 is arranged on the 3rd axle 42; convenient control, also can make the internal structure of drilling machine compacter, simple in addition.
Claims (10)
1. an automatic drilling machine, comprise frame (1), this frame (1) is provided with drill bit (111) and drive unit, it is characterized in that, described frame (1) is also provided with auto feed system (2) and transmission mechanism (4), this auto feed system (2) comprises the main shaft (21) be connected with drill bit (111), the axis of travel (22) linked with main shaft (21), worm gear (23), the worm screw (29) engaged with worm gear (23), feeding clutch (24) and clutch control mechanism, this worm screw (29) is linked by the clutch end of transmission mechanism (4) with drive unit, this feeding clutch (24) be socketed in axis of travel (22) upper and can with axis of travel (22) synchronous axial system, and described worm gear (23) empty set is oppositely arranged with the corresponding end face of feeding clutch (24) in the upper and side of worm gear (23) of axis of travel (22), described clutch control mechanism can control feeding clutch (24) action and make feeding clutch (24) engage each other with the opposing end surface of worm gear (23) or be separated.
2. automatic drilling machine as claimed in claim 1, it is characterized in that, described clutch control mechanism comprises clutch slider (26), take-up housing (25), driving lever (27) and clutch from lock set, described clutch slider (26) is placed in this take-up housing (25), and under driving lever (27) drives, feeding clutch (24) can be forced in by clutch from lock set locking relative to take-up housing (25) displacement, thus the opposing end surface of this feeding clutch (24) and worm gear (23) is engaged each other.
3. automatic drilling machine as claimed in claim 2, it is characterized in that, between described clutch slider (26) and take-up housing (25), clutch slider (26) direction of displacement is provided with the first back-moving spring (262), described clutch comprises the travel screw (28) arranged along main shaft (21) direction of feed from lock set, travel synchronization block (283), clutch self-locking block (284), stroke adjustment nut (282) and the first mounting blocks (281) and the second mounting blocks (285), frame (1) is fixed on respectively by the first mounting blocks (281) and the second mounting blocks (285) in the two ends of described travel screw (28), wherein the trip screw rod (28) to be inserted in the first installing hole (288) being opened in the first mounting blocks (281) and to be provided with the second back-moving spring (287) in this first installing hole (288),
Described clutch self-locking block (284) thread bush is connected on travel screw (28), and this clutch self-locking block (284) is provided with a self-lock pin (286), the end face of this self-lock pin (286) keeps the trend offseted with clutch slider (26) seat (25) side under the effect of the second back-moving spring (287), and this side offers one for this self-lock pin (286) pin-and-hole (251) that inserts and this pin-and-hole (251) is through on clutch slider (26), when above-mentioned clutch slider (26) is mobile relative to take-up housing (25) under driving lever (27) drives, self-lock pin (286) can be taken advantage of a situation and inserted in this pin-and-hole (251) and locked by clutch slider (26), described travel synchronization block (283) empty set goes up at travel screw (28) and links with main shaft (21), and described stroke adjustment nut (282) thread bush is connected in travel screw (28) and goes up and be positioned at travel synchronization block (283) front relative to main shaft (21) direction of feed.
4. automatic drilling machine as claimed in claim 2, it is characterized in that, one end of described driving lever (27) offers a through hole, be equipped with the fixed axis (271) that two ends are fixed with take-up housing (25) respectively in this through hole, and one end of this end of driving lever (27) and clutch slider (26) is hinged.
5. automatic drilling machine as claimed in claim 4, it is characterized in that, described feeding clutch (24) and the phase dorsal part of worm gear (23) are provided with can to the semicircle pressure ring (241) of feeding clutch (24) axial force distribution, the two ends of this pressure ring (241) are respectively with feeding clutch (24) is hinged and center horizontal-extending has a push rod (242), the end of this push rod (242) is formed with U-shaped mounting groove, a roller (243) is hinged with in this U-shaped mounting groove, the other end of described clutch slider (26) be formed can with the interactional inclined-plane of wheel face (261) of this roller (243).
6. the automatic drilling machine according to any one of Claims 1 to 5, it is characterized in that, described transmission mechanism (4) comprises the Multi-stage transmission gear train be connected with the clutch end of drive unit, this Multi-stage transmission gear train comprises the first transmission gear wheel (411) engaged with the driving gear of the clutch end of drive unit (105), first drive pinion (412), second transmission gear wheel (521), second drive pinion (522), 3rd transmission gear wheel (421), 3rd drive pinion (422), 4th transmission gear wheel (431) and the 4th drive pinion (432) engaged with the driven gear (106) on worm screw (29), wherein the first transmission gear wheel (411) and the first drive pinion (412) are arranged on the first axle (41), second transmission gear wheel (521) and the second drive pinion (522) are arranged on the second axle (52), 3rd transmission gear wheel (421) and the 3rd drive pinion (422) are arranged on the 3rd axle (42), 4th transmission gear wheel (431) and the 4th drive pinion (432) are arranged on the 4th axle (43).
7. automatic drilling machine as claimed in claim 6, it is characterized in that, described 3rd transmission gear wheel (421) comprises the overload-release clutch (423) and the gear mass (424) of empty set on the 3rd axle (42) that are arranged on the upper also preset security moment of torsion of the 3rd axle (42), described overload-release clutch (423) and the 3rd axle (42) synchronous axial system and in gear mass (424) empty set the 3rd axle (42), the opposing end surface of this overload-release clutch (423) with gear mass (424) is respectively arranged with can intermeshing tooth.
8. automatic drilling machine as claimed in claim 1, it is characterized in that, also comprise folder rail mechanism (3), this folder rail mechanism (3) comprises with the degree of tightness screw rod (31) of operating grip (313), grab (33), grab Connection Block (32) and the locating clamp plate (36) with rail specification adaptation, described locating clamp plate (36) is two pieces and sets up the left and right sides with drill bit (111) separately, forms the space for clamping rail between described grab (33) and locating clamp plate (36);
Described grab (33) comprises the rocking arm (331) of hook portion (332) for clamping rail and hook portion (332) upper end, (11 fix for one end of described grab Connection Block (32) and drill headstock, (331 is hinged for the other end and rocking arm, (31 comprise screw rod (311 and lower screw rod (312) to described degree of tightness screw rod, on this, lower screw rod (311, 312) pitch of upper screw thread is identical and rotation direction is contrary, and on, lower spiral shell (311, 312) what be respectively fitted with its threaded engagement on is upper, backspin sliding (34, 35), and described backspin slide block (35) and grab Connection Block (32) fixing and on revolve slide block (34) and fix with rocking arm (331).
9. automatic drilling machine as claimed in claim 6, it is characterized in that, also comprise gear (5), this gear (5) comprises the variable-speed shaft (51) be connected with main shaft (21), be arranged at the gear teeth wheels (54) of this variable-speed shaft (51), second axle (52) and be located at the upper and multi-joint shifting slide gear (53) that can slide along the second axle (52) of this second axle (52), described gear teeth wheels (54) comprise the different change-speed gearing of multiple number of teeth (541), described multi-joint shifting slide gear (53) be disposed with multiple can corresponding with above-mentioned change-speed gearing (541) the respectively and shifting slide gear (531) that engages.
10. automatic drilling machine as claimed in claim 9, it is characterized in that, described multi-joint shifting slide gear (53) is provided with for driving it along the Control Component of the second axle (52) movement, this Control Component comprises knob (58), the swing arm (6) that one end is connected with knob (58), pulling axis (57), shifting block (55) and guide pillar (56), the setting direction of described guide pillar (56) is parallel with the second axle (52), one end of described shifting block (55) is connected with multi-joint shifting slide gear (53), the other end forms lasso (551) and is set in guide pillar (56) and shifting block (55) can be moved along guide pillar (56), the outer face of this lasso (551) is provided with bearing pin (552), one end of described pulling axis (57) is connected with swing arm (6) and the other end offers U-lag (571), described bearing pin (552) is flush-mounted in U-lag (571).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083669.0A CN105458343B (en) | 2016-02-06 | 2016-02-06 | A kind of automatic drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083669.0A CN105458343B (en) | 2016-02-06 | 2016-02-06 | A kind of automatic drilling machine |
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| CN105458343A true CN105458343A (en) | 2016-04-06 |
| CN105458343B CN105458343B (en) | 2018-04-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108543980A (en) * | 2018-04-22 | 2018-09-18 | 芜湖撼江智能科技有限公司 | A kind of rail bonding drill easy to use |
| CN108673768A (en) * | 2018-05-29 | 2018-10-19 | 高维维 | A kind of efficient semi-conducting material production technology equipment |
| CN109676513A (en) * | 2018-12-26 | 2019-04-26 | 益阳康益机械发展有限公司 | Internal messing positive motion chain tumbling mill |
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| CN108673768A (en) * | 2018-05-29 | 2018-10-19 | 高维维 | A kind of efficient semi-conducting material production technology equipment |
| CN109676513A (en) * | 2018-12-26 | 2019-04-26 | 益阳康益机械发展有限公司 | Internal messing positive motion chain tumbling mill |
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|---|---|
| CN105458343B (en) | 2018-04-10 |
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