A kind of axis feeding drive unit of drilling machine
Technical field
The utility model belongs to field of mechanical technique, relates to the axis feeding drive unit of a kind of drilling machine, particularly a kind of drilling machine.
Background technology
Drilling machine refers to mainly use the lathe of drill bit machining hole on workpiece, and drill bit rotates to be main motion usually, and drill bit moves axially and is feed motion.Drilling machine can be used to process through hole, blind hole, can also accomplish reaming, spot-facing, processing such as fraising or tapping through changing cutter.Drilling machine is controlled the rotation and the axial feed of drill press spindle through numerical control device, has improved machining accuracy and production efficiency.
But owing to exist the main shaft auto-feed can't satisfy the situation of producing needs in the drilling machine processing, this just need be provided with manual auto-feed switching device shifter on drilling machine, and operating personnel can process through hand feed.For example, the Chinese patent [patent No. ZL200920318621.9 that once applied for of the applicant; Granted publication CN 201572943U] the manual auto-feed converting means of a kind of upright drill main shaft disclosed; Comprise and be arranged on gear shaft that is meshed with main shaft in the main spindle box and the handle set that is fixed on the main spindle box outside; Handle and handle set are installed on the handle set and gear shaft one end is connected; This device also comprises the electromagnetic clutch that is connected with actuating unit on being arranged on the actuating unit in the main spindle box and being installed in gear shaft; Main spindle box is provided with the controlling organization of control electromagnetic clutch clutch, and for mechanism is in linkage status, gear shaft and actuating unit are in released state to gear shaft when electromagnetic clutch cuts off the power supply with moving when electromagnetic clutch is switched on.
The manual auto-feed converting means of above-mentioned upright drill main shaft is through the manual and auto-feed of electromagnetic clutch mechanism controls drill press spindle.But the problem that the manual auto-feed converting means of this upright drill main shaft exists is that through the clutch of controlling organization control electromagnetic clutch, the manufacturing cost of equipment is higher relatively.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of axis feeding drive unit of drilling machine, and the technical problem that the utility model solves is to make the switching manual and auto-feed of drilling machine more convenient, and reduces manufacturing cost.
The purpose of the utility model can realize through following technical proposal: a kind of axis feeding drive unit of drilling machine; This feed arrangement is arranged on the frame of drilling machine; Comprise the housing that is connected on the frame, be positioned at the driving shaft of housing and be fixed on the feeding motor on the housing; It is characterized in that this main shaft proceeding equipment also comprises the worm gear that is set on the feeding driving shaft, be fixed with worm screw on the electric machine main shaft of described feeding motor; Described worm and wheel is meshed, and described driving shaft is provided with can be through manual control worm gear and driving shaft interlock or clutch that separates and the handle that is used to drive drive shaft turns.
The axis feeding drive unit of this drilling machine is arranged on the frame of drilling machine, is used to realize the switching of drill press spindle hand feed and auto-feed.The operation principle of the axis feeding drive unit of this drilling machine is; When drilling machine needs hand feed; Operating personnel make worm gear separate with driving shaft through clutch, and the feeding motor can not drive drive shaft turns, and operating personnel can drive driving wheel through turning handle and rotate the realization hand feed; When drilling machine needed auto-feed, operating personnel made worm gear and driving shaft interlock through clutch, and feeding driven by motor drive shaft turns realizes auto-feed.The axis feeding driving device structure of this drilling machine is simple, and the hand feed of drilling machine and the switching of auto-feed are convenient.
In the axis feeding drive unit of above-mentioned drilling machine; Described clutch comprises the clutch sleeve one and clutch sleeve two that is set on the driving shaft; Described clutch sleeve one is connected with described worm gear mutually, and described clutch sleeve two is circumferentially located with driving shaft, all is fixed with friction plate on the adjacent end face of described clutch sleeve one and clutch sleeve two; Described driving shaft and housing axial location, described handle can drive clutch sleeve two and endwisely slip along driving shaft.
The operation principle of this clutch is: handle drives clutch sleeve two and endwisely slips along driving shaft; Friction plate that is fixed on the clutch sleeve two and the friction plate that is fixed on the clutch sleeve one are fitted; Clutch sleeve one engages with clutch sleeve two; The feeding motor drives clutch sleeve one through worm and gear and rotates, and passes motion to driving shaft through clutch sleeve two, realizes feed motion.
In the axis feeding drive unit of above-mentioned drilling machine; Described clutch comprises the clutch sleeve one and clutch sleeve two that is set on the driving shaft; Described clutch sleeve one is connected with described worm gear mutually, and described clutch sleeve two is circumferentially located with driving shaft, and described clutch sleeve one and clutch sleeve two adjacent end faces have respectively can intermeshing toothed region; Described driving shaft and housing axial location, described handle can drive clutch sleeve two and endwisely slip along driving shaft.The shape of the toothed region of clutch sleeve one and clutch sleeve two is corresponding, and the space of teeth on the toothed region is provided with; Driving shaft endwisely slips and when contacting with clutch sleeve one, the toothed region of clutch sleeve one and clutch sleeve two is meshed in the drive lower edge of handle when clutch sleeve two, and clutch sleeve one can drive clutch sleeve two rotations.
In the axis feeding drive unit of above-mentioned drilling machine; The outside of described clutch sleeve two is arranged with a pivoted housing, and described pivoted housing is connected with driving shaft mutually, circumferentially is provided with several mounting grooves on the lateral surface of described clutch sleeve two; Has the resigning hole that supplies handle to pass on the described pivoted housing; The end and the pivoted housing of described handle are hinged, and handle has the lug boss that can snap in above-mentioned mounting groove near place, this end, and described lug boss can slide in above-mentioned mounting groove.Pivoted housing can be with handle and drive shaft turns; When operating personnel pulled handle, handle can rotate and drive clutch sleeve two and endwisely slip along driving shaft around the hinged place.
In the axis feeding drive unit of above-mentioned drilling machine; The medial surface of described clutch sleeve two circumferentially is provided with steel ball and spring; One end of spring is resisted against the bottom of steel ball; The other end is resisted against on the clutch sleeve two, has on the described driving shaft and above-mentioned steel ball position and shape groove one to one.Endwisely slip along driving shaft behind the segment distance when operating personnel make clutch sleeve two through the angle that handle wrench is certain excessively, steel ball snaps in the groove under the effect of spring force, makes the handle location; When handle resetted, steel ball can overcome spring force and break away from groove, and handle swings to initial position around pin joint.
In the axis feeding drive unit of above-mentioned drilling machine, the grip part that process through the elastomeric material that is threaded the outer end of described handle.Make operating personnel's gripping handle more convenient.
In the axis feeding drive unit of above-mentioned drilling machine, described clutch sleeve two is circumferentially located through flat key with driving shaft.Easy to connect, reliable, and the processing cost of flat key is lower.
In the axis feeding drive unit of above-mentioned drilling machine, described clutch sleeve one is connected through lining with worm gear.Worm gear and clutch sleeve one installation site distance are far away, through increasing this part of lining, make the size of clutch sleeve one more reasonable.
In the axis feeding drive unit of above-mentioned drilling machine, have a convex shoulder on the described lining, described convex shoulder is resisted against on the end face of described worm gear, and the end of described convex shoulder circumferentially is evenly distributed with several fixing holes.
In the axis feeding drive unit of above-mentioned drilling machine, have the slot to make way that supplies described lining to pass on the described clutch sleeve one, the sidepiece of described clutch sleeve one circumferentially is distributed with several installing holes.
The purpose that is provided with like this is, clutch sleeve one and being connected more of worm gear are leaned on, and improves the transmission efficiency between clutch sleeve one and the worm gear.
Compared with prior art, the advantage of the axis feeding drive unit of this drilling machine is:
1, the axis feeding drive unit of this drilling machine is through the switching of mechanical clutch realization drilling machine hand feed and auto-feed, and easy to operate, cost is lower.
2, be provided with steel ball between the handle of the axis feeding drive unit of this drilling machine and the driving shaft, can position, make drilling machine keep the auto-feed state according to operating personnel's needs to handle.
3, the worm gear of the axis feeding drive unit of this drilling machine and clutch sleeve one are connected through lining, have simplified the structure of clutch sleeve one, make the transmission efficiency between worm gear and the clutch sleeve one higher simultaneously.
Description of drawings
Fig. 1 is that the axis feeding drive unit of written or printed documents drilling machine is in the structural representation under the auto-feed state.
Fig. 2 is that the axis feeding drive unit of written or printed documents drilling machine is in the structural representation under the hand feed state.
Fig. 3 is the structural representation of clutch sleeve two of the axis feeding drive unit of written or printed documents drilling machine.
Fig. 4 is the structural representation of lining of the axis feeding drive unit of written or printed documents drilling machine.
Fig. 5 is the sectional structure sketch map of grip part of the axis feeding drive unit of written or printed documents drilling machine.
Among the figure, 1, frame; 2, housing; 3, driving shaft; 31, groove; 4, feeding motor; 5, worm gear; 6, worm screw; 7, handle; 71, lug boss; 72, grip part; 8, clutch sleeve one; 81, installing hole; 9, clutch sleeve two; 91, mounting groove; 10, pivoted housing; 101, resigning hole; 11, steel ball; 12, spring; 13, lining; 131, convex shoulder; 132, fixing hole.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Embodiment one:
The axis feeding drive unit of this drilling machine is arranged on the frame 1 of drilling machine, is used to realize the switching of drilling machine hand feed and auto-feed.This axis feeding drive unit comprises housing 2, driving shaft 3, feeding motor 4, worm gear 5, worm screw 6, handle 7 and clutch.
Specifically; As depicted in figs. 1 and 2, housing 2 is fixedly connected with frame 1, and driving shaft 3 is arranged in the housing 2 and in housing 2 axial location; Worm gear 5 is set on the driving shaft 3 and in driving shaft 3 axial location; Feeding motor 4 is fixed on the housing 2, and worm screw 6 is connected with the electric machine main shaft of feeding motor 4, and worm gear 5 is meshed with worm screw 6.One end of driving shaft 3 is fixed with a pivoted housing 10 through screw; Pivoted housing 10 outer wall upper edges circumferentially offer several resigning holes 101; Be hinged with handle 7 on the pivoted housing 10, an end of handle 7 passes resigning hole 101, and operating personnel can drive driving shaft 3 through turning handle 7 and rotate.Like Fig. 1 and shown in Figure 5, the grip part 72 that also process through the elastomeric material that is threaded the outer end of handle 7 makes operating personnel's gripping handle 7 more convenient.
Clutch is used to realize the interlock of worm gear 5 and driving shaft 3 or separates that clutch comprises clutch sleeve 1 and clutch sleeve 29.As shown in Figure 1, clutch sleeve 1 is connected through lining 13 and worm gear 5.As shown in Figure 4, have a convex shoulder 131 on the lining 13, the outer face of convex shoulder 131 is resisted against on the end face of worm gear 5, and the end of convex shoulder 131 circumferentially is evenly distributed with several fixing holes 132, and lining 13 is connected with worm gear 5 through screw mutually.The inner peripheral surface of clutch sleeve 1 has slot to make way, and sidepiece circumferentially is distributed with several installing holes 81, and lining 13 passes slot to make way and is connected through screw and clutch sleeve 1.
As shown in figures 1 and 3; Clutch sleeve 29 is circumferentially located through flat key and driving shaft 3; Pivoted housing 10 is positioned at the outside of clutch sleeve; Circumferentially be processed with several mounting grooves 91 on the lateral surface of clutch sleeve 29, handle 7 has a lug boss 71 near the end of hinged place, and lug boss 71 can snap in the corresponding mounting groove 91.The outer surface of lug boss 71 is resisted against on the inwall of mounting groove 91, and lug boss 71 can slide with respect to the inwall of mounting groove 91.The medial surface of clutch sleeve 29 circumferentially offers through hole; Be provided with steel ball 11 and spring 12 in the through hole; One end of spring 12 is resisted against the bottom of steel ball 11, and the other end is resisted against on the clutch sleeve 29, has on the driving shaft 3 and steel ball 11 positions and shape groove 31 one to one.When operating personnel pulled handle 7, driving shaft 3 endwisely slipped clutch sleeve 29 in the effect lower edge of lug boss 71; When clutch sleeve 29 slides into when the position is set, steel ball 11 snaps in the groove 31 under the effect of spring 12 power, makes handle 7 location; When handle 7 resetted, steel ball 11 can overcome spring 12 power and break away from groove 31, and handle 7 swings to initial position around pin joint.
Clutch sleeve 1 and clutch sleeve 29 adjacent end faces have respectively can intermeshing toothed region, and the shape of the toothed region of clutch sleeve 1 and clutch sleeve 29 is corresponding, and the space of teeth on the toothed region is provided with; Driving shaft 3 endwisely slips and when contacting with clutch sleeve 1, the toothed region of clutch sleeve 1 and clutch sleeve 29 is meshed in the drive lower edge of handle 7 when clutch sleeve 29, and clutch sleeve 1 can drive clutch sleeve 29 and rotate.
The operation principle of the axis feeding drive unit of this drilling machine is; When drilling machine needs hand feed; Operating personnel make clutch sleeve 1 separate with clutch sleeve 29 through pulling handle 7; And then worm gear 5 separates with driving shaft 3, and feeding motor 4 can not drive driving shaft 3 and rotate, and operating personnel drive driving wheels through turning handle 7 and rotate and realize hand feeds; When needing auto-feed, drilling machine makes; Operating personnel drive clutch sleeve 29 through handle 7 and endwisely slip along driving shaft 3; The toothed region that is fixed on the clutch sleeve 29 is meshed with toothed region on being fixed on clutch sleeve 1, and clutch sleeve 1 engages with clutch sleeve 29, and feeding motor 4 drives clutch sleeves 1 through worm screw 6 and worm gear 5 and rotates; And, realize auto-feed through clutch sleeve 1 and 3 rotations of clutch sleeve 29 drive driving shafts.
Embodiment two:
Technical scheme among technical scheme in the present embodiment and the embodiment one is basic identical; Difference is; In the present embodiment; Clutch comprises the clutch sleeve 1 and clutch sleeve 29 that is set on the driving shaft 3, and clutch sleeve 1 is connected with worm gear 5 mutually, and clutch sleeve 29 is circumferentially located with driving shaft 3.Be fixed with friction plate respectively on the adjacent end face of clutch sleeve 1 and clutch sleeve 29; When clutch sleeve 29 slides axially into the position that engages with clutch sleeve 1 along driving shaft 3; Be fixed on clutch sleeve 1 and be close to, clutch sleeve 1 and clutch sleeve 29 can be rotated synchronously with the friction plate on the clutch sleeve 29.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as frame 1, housing 2, driving shaft 3, groove 31, feeding motor 4, worm gear 5, worm screw 6, handle 7, lug boss 71, grip part 72, clutch sleeve 1, installing hole 81, clutch sleeve 29, mounting groove 91, pivoted housing 10, resigning hole 101, steel ball 11, spring 12, lining 13, convex shoulder 131, fixing hole 132 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.