CN201664863U

CN201664863U - Swing arm type cutting tool circular arc blade milling machine

Info

Publication number: CN201664863U
Application number: CN2010201122855U
Authority: CN
Inventors: 丁珍华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2010-12-08
Anticipated expiration: 2020-02-10

Abstract

Provided is a swing arm type cutting tool circular arc blade milling machine, comprising a machine body, a controlling system, a grinding head assembly, a small cross slide carriage, a rotary worktable and a knife rest. The utility model is characterized in that a tool feed moveable mechanism adopts a swing arm mechanism; a rotary worktable is arranged on the swing arm and a small cross slide carriage is arranged on the rotary worktable and a knife rest is arranged on the small cross slide carriage; a reciprocating movingtable which is in parallel with a grinding wheel surface is arranged on the machine body; the reciprocating movingtable is provided with a grinding head assembly or a swing arm mechanism. The utility model has advantages of good tool feed flexibility, simple and economical structure, strong rigidity of a main shaft, good quality of cutter sharpening, wide application in cutting tools of precision machineries and cutter sharpening of superhard cutting tools.

Description

Swing arm knife tool arc edging machine

Technical field

The utility model relates to a kind of tool sharpening machine, especially a kind of arc edging machine of superhard cutter.

Technical background

Along with the popularization and application of superhard cutters such as diamond, cubic boron nitride, pottery, especially with the processing new trend of car for mill; It is more and more harsher that people are required the sharpening of lathe tool, and traditional hand grinding lathe tool difficulty meets the demands, and especially aspect fineness, thereby impels people to see more and more heavylier to machine reconditioning cutter.Superhard blade milling machine in the market, delivering gear be because slide unit weight is very heavy, and the slide unit coefficient of friction is bigger, and screen resilience is bigger during tool sharpening, thereby when the very big cutter of fragility such as sharpening such as monocrystalline DLC, cutting edge bursts apart easily; Some scholars proposes with magnetic or air suspend type slide unit mechanism, but its cost height, thus the market use less, superhard cutter sharpening equipment complex structure cost height on the market at present in addition.

Summary of the invention

The purpose of this utility model provides good, the simple in structure economy of a kind of feed flexibility, the main shaft rigidity is strong, grinding quality is good knife tool arc edging machine.

In order to reach above-mentioned goal of the invention, the technical scheme that the utility model adopted is: it mainly is made up of body, control system, bistrique assembly, little cross slide seat, rotary table, knife rest; It is characterized in that: feed travel mechanism adopts oscillating arm mechanisms, its be preferably mounted at the perpendicular direction of wheel face on, this oscillating arm mechanisms mainly is made up of central shaft and swing arm; Rotary table is installed in the swing arm, little cross slide seat is installed on the rotary table, on the little cross slide seat knife rest is installed.For the feed precision of more accurate assurance swing arm, the center position of the central shaft of oscillating arm mechanisms in the horizontal direction with wheel face distance preferably in positive and negative 20 millimeters.For when the sharpening, abrasion of grinding wheel is even, and the tool sharpening size is secure, on body, be equipped with one parallel with the wheel face direction move back and forth slide unit; This moves back and forth the optional bistrique assembly of slide unit or oscillating arm mechanisms is installed on this slide unit, and the central shaft of the preferred oscillating arm mechanisms of the utility model is installed in and moves back and forth on the slide unit, and the bistrique assembly is fixedly mounted on the body, more favourable like this reinforcement board rigidity.The above-mentioned preferred motor of slide unit that moves back and forth adds screw structure, inferior oil cylinder mechanism, the eccentric stiffener of selecting.

In order to make this machine have more economic and practical, preferred wheel face of the utility model and the parallel installation of bistrique assembly promptly adopt the structure of emery wheel face of cylinder grinding.When this structure tool sharpening relief angle changes, only need to realize by changing the height of the relative emery wheel of cutter; And when positive and negative cutter of sharpening and grooving cutter, need not be when the end grinding wheel sharpening, the both sides that move to emery wheel like that can sharpening, and it moves back and forth the space and greatly reduces, and handled easily, raises the efficiency.This structure is less than influence grinding quality because of emery wheel Internal and external cycle linear velocity difference as the end grinding wheel sharpening in addition.Select for the relief angle that makes things convenient for tool sharpening, the utility model preferred module edge bearing has level to regulate the demand of tool sharpening relief angle, and inferior being selected in installed the demand that elevating mechanism comes step-less adjustment tool sharpening relief angle between little cross slide seat and knife rest; Also may be selected to be the sharpening assembly in addition the demand that an elevating mechanism comes step-less adjustment tool sharpening relief angle is installed.

In order better to guarantee the grinding quality of brittle tools such as sharpening diamond, cubic boron nitride, the utility model swing arm feed mechanism preferred elastomeric voltage stabilizing self-feed mechanism; And this preferred aeroelasticity voltage stabilizing self-feed mechanism of elasticity voltage stabilizing self-feed mechanism, the inferior spring voltage stabilizing self-feed mechanism that selects also can select gravity elasticity voltage stabilizing self-feed mechanism for use.

In order to guarantee the grazing of wheel face behind the long-time sharpening, the utility model is respectively installed a locating piece with insulating materials respectively at the slide unit of swing arm and feed mechanism contacted with it; Two locating pieces wherein one connect power supply, another piece connected control system.When cutter did not contact emery wheel, because the effect of elasticity voltage stabilizing mechanism, two locating pieces contacted, and signal is connected; Control system is sent signal and is moved by feed mechanism, the swing arm swing, and cutter leans on into to wheel face; After cutter contact wheel face, this moment, feed mechanism moved again, and two locating pieces promptly separate, signal cut, and control system is sent signal and is stopped by feed mechanism; Thereby this action is because the shallow grazing that has guaranteed wheel face behind the long-time sharpening of depth of cut.

Because the utility model feed travel mechanism adopts the feeding of swing arm mode, its feed route is an arcuation; When selecting the structure of wheel face and the parallel installation of bistrique assembly for use, the relief angle size of its tool sharpening is to realize that by the height of adjusting the relative emery wheel of cutter the height of the relative emery wheel of its cutter directly influences feeding distance again in addition; Thereby for raising the efficiency and precision, the utility model control system adopts the micro computer structure, and on the swing arm delivering gear, numerical-control motor or grating are installed; Other transmission mechanism is also all installed numerical-control motor or grating according to market sexual valence demand.This microcomputer control system calculates by science such as trigonometric functions, make swing arm feed precision be protected, system and according to the input sharpening relief angle size and circular arc size, system calculates the height that cutter need install automatically if the elevating mechanism that is equipped with numerical-control motor is arranged, system with automatic lifting to this height; If do not assemble the elevating mechanism of numerical-control motor, be the height that system-computed goes out in the visual man-machine interface, again with the module pad be adjusted to this height and swing arm this put what position can reach rotary table axle center extensions to wheel face apart from just being the distance of tool arc.

Because the emery wheel size will directly influence the computational accuracy of control system, thereby need often to measure the emery wheel size, input system is so that system more accurately calculates the feed value; For reducing labour intensity, the utility model is installed a cover automatic measurement system on spindle drum, and this system mainly is made up of grating gauge head, small-sized slide unit, pen type cylinder, locating piece.Its middle-size and small-size slide unit is installed between spindle drum and the grating gauge head, guarantees grating gauge head mobile accuracy; The pen type cylinder is installed between the slide block of spindle drum and small-sized slide unit, push-and-pull slide block forward-reverse; Locating piece is installed on the spindle drum, is used for the slide unit location of advancing; Grating gauge head center line and emery wheel center are preferably in positive and negative 20.For preventing that sealing and dust enter automatic measurement system, are equipped with an interstage sleeve on wheel guard.

In order to improve the rotary table precision, the utility model is equipped with worm gearing at rotary table, and it does not preferably have the gap worm mechanism; For raising the efficiency numerical-control motor is installed on worm screw.

The beneficial effects of the utility model are: 1, because feed travel mechanism adopts oscillating arm mechanisms, its frictional force is little, the arm of force is long, the accurate control of the actual feeding pressure of the relative emery wheel of feed elastic recoil and cutter when helping grinding; Secondly, adopt its cutter of swing arm feed travel mechanism to be subjected to force direction and feed locomotivity direction basic identical, and with traditional slide unit feed travel mechanism, its cutter is subjected to force direction and feed locomotivity direction perpendicular, it has a strong impact on the rollback power size of actual sharpening stressed size, the especially cutter of cutter; The traditional relatively slide unit feed of this mechanism travel mechanism compares in addition, and only one of its several parts of weight, just can reduce the moment factor of feed and withdrawing at the minimizing of gravity; Moreover it is simple in structure to adopt swing arm feed travel mechanism, and cost is low.2, because the central shaft of bistrique assembly or oscillating arm mechanisms is installed in moves back and forth on the slide unit, abrasion of grinding wheel is even during its sharpening, and the tool sharpening size is secure, especially during sharpening ultrahard material tool arc.3, adopt wheel face and the parallel installation of bistrique assembly, promptly adopt the structure of emery wheel face of cylinder grinding; When this structure tool sharpening relief angle changes, only need to realize by changing the height of the relative emery wheel of cutter; And when positive and negative cutter of sharpening and grooving cutter, the both sides that move to emery wheel in the time of need not be as the end grinding wheel sharpening can sharpening, and it moves back and forth the space and greatly reduces, and handled easily, raises the efficiency; This structure is less than influence grinding quality because of emery wheel Internal and external cycle linear velocity difference as the end grinding wheel sharpening in addition.4, the swing arm feed mechanism adopts elasticity voltage stabilizing self-feed mechanism, its sharpening tool sharpening pressure steadily, do not have and impact, thereby improve grinding quality, especially during the special crisp material tool arc of sharpening.5, employing is respectively installed a locating piece with insulating materials respectively at the slide unit of swing arm and feed mechanism contacted with it; Two locating pieces wherein one connect power supply, another piece connected control system; This mechanism since depth of cut remain in the very shallow value, thereby guaranteed the grazing of wheel face behind the long-time sharpening.6, the bistrique assembly preferably is fixedly mounted on the support, but its do not have traditional Sharpening device because of bistrique assembly pendulum angle or lifting, the grinding quality that the rigidity deficiency that causes caused such as vertically move, laterally move and descend.7, control system adopts the micro computer structure, and on the swing arm delivering gear numerical-control motor or grating is installed; This microcomputer control system calculates by science such as trigonometric functions, makes swing arm feed precision be protected, and reduces labour intensity greatly and enhance productivity.8, adopt a cover automatic measurement system is installed on spindle drum, this system effectively reduces because of wheel grinding replacing etc. causes need remeasure the emery wheel size, again the labour intensity of input control system.9, adopt and worm gearing to be installed, effectively improved the rotary table precision, and adopt and numerical-control motor preferably is installed on worm screw is enhanced productivity at rotary table.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified

Fig. 1 is the agent structure cutaway view of the utility model first embodiment; Wherein: 1 is the bistrique assembly, and 2 is motor, and 3 is body, and 4 is wheel face, and 5 is rolling guide, 6 is vertical slide unit, and 7 are swing arm, and 8 is central shaft, and 10 is bearing block, 11 is rotary table, and 12 is that bearing 2,13 is little cross slid platform, and 14 is knife rest, 15 is edge bearing, and 17 is cylinder, 18 little Mobile Slides, and 19 is

rolling lead screw

2,20 is that

servomotor

2,25 is a spindle drum, and 26 is the grating gauge head, and 27 is rolling

guide

2,28 is the pen type cylinder, and 29 is locating piece, and 30 is wheel guard, and 31 is interstage sleeve.

Fig. 2 is the complete machine front view of Fig. 1.

Fig. 3 is the complete machine left view of Fig. 1.

Fig. 4 is the K portion cutaway view of Fig. 2; Wherein: 7 are swing arm, and 8 is central shaft, and 9 is bearing, and 10 is bearing block, and 11 is rotary table, and 12 is that bearing 2,16 is a rolling lead screw.

Fig. 5 is the E portion enlarged drawing of Fig. 1; Wherein: 7 are swing arm, and 18 is little Mobile Slide, and 21 is that insulation sleeve 1,22 is hemispherical locating pin, and 23 is that

insulation sleeve

2,24 is the plane positioning nail.

Fig. 6 is the front view of the utility model second embodiment; Wherein: 40 are the swing arm lateral shaft, and 41 are the swing arm vertical axis, and 42 is that bearing 3,43 is that rotary table 2,48 is two shaft cylinders.

Fig. 7 is the left view of Fig. 6; Wherein: 36 is that

bistrique assembly

2,37 is that

motor

2,38 is that

body

2,39 is a

wheel face

2,41 swing arm vertical axis, 42 is that bearing 3,43 is a rotary table 2,44 is that little

cross slid platform

2,45 is that

knife rest

2,46 is an edge bearing 2,47 is worm screw, and 49 is that

cylinder

2,50 is little Mobile

Slide

2,51 is screw mandrel, and 52 is stepper motor, and 53 is steel wire rope, 54 is round steel bar, and 55 is insulating bar, and 56 is bearing 4.

The specific embodiment

Embodiment one

With reference to shown in Figure 1, present embodiment bistrique assembly 1 and motor 2 are fixedly mounted on the body 3 together, wheel face 4 and the 1 parallel installation of bistrique assembly.With two rolling guides 5 a vertical slide unit 6 is installed on body 3 with bistrique assembly 1 parallel direction.Shown in Fig. 1,4, swing arm is made up of swing arm 7, central shaft 8, bearing 9, bearing block 10 in the present embodiment, and this swing arm 7 closely cooperates into a spider with central shaft 8 usefulness axis holes; Each is fixedly mounted on central shaft 8 two ends on vertical slide unit 6 by bearing block 10 with pair of bearings 9, and the center position of central shaft 8 is in the horizontal direction apart from 1 millimeter of wheel face.A shape is processed in swing arm 7 upper ends, and directly as the axle of rotary table 11, swing arm 7 is assembled into a rotary table 11 flexibly by bearing 212 and panoramic table; A little cross slid platform 13 is installed on the rotary table 11, a knife rest 14 is installed on the little cross slid platform 13, be placed with module edge bearing 15 in the knife rest 14.With reference to shown in Figure 4, about vertically slide unit 6 usefulness rolling lead screws 16 add servomotor and carry out and move back and forth.

With reference to shown in Figure 1, the elasticity voltage stabilizing feed arrangement of present embodiment swing arm 7 mainly is made up of cylinder 17, little Mobile Slide 18, rolling lead screw 219, servomotor 220; The slide disjunctor of little Mobile Slide 18 is installed on vertical slide unit 6, and slide plate one end of little Mobile Slide 18 has a square hole, and this hole is passed in swing arm 7, and the other end is installed rolling lead screw 219, and rolling lead screw 219 other ends and servomotor 220 link; Cylinder 17 is installed in the swing arm 7, and adds a rapid escape valve on cylinder 17 air inlet pipelines, thereby makes it that bigger snap-off-distance be arranged.Shown in Fig. 1,5, in order to guarantee the grazing of wheel face behind the long-time sharpening, present embodiment is equipped with a hemispherical locating pin 22 of conduction by insulation sleeve 121 in swing arm 7; In the slide plate of little Mobile Slide 18, a conductive plane locating pin 24 is installed by insulation sleeve 223; Hemispherical locating pin 22 tail ends connect the 24V negative power supply, and plane positioning is followed closely 24 tail ends and linked to each other with microcomputer controller; During work since the ejection of cylinder 17 when cutter does not contact emery wheel 4, two locating

pins

22,24 contact, signal is connected, microcomputer controller sends signal by servomotor 220 motions, little Mobile Slide 18 moves, swing arm 7 swings, cutter leans on into to wheel face 4; After cutter contact wheel face 4, this moment, servomotor 220 allowed little Mobile Slide 18 move again, and two locating

pins

22,24 are promptly separated, signal cut, and microcomputer controller sends signal to be stopped by servomotor 220; Thereby this action is because the shallow grazing that has guaranteed wheel face behind the long-time sharpening of depth of cut.

Shown in Fig. 1,2,3, present embodiment is because the feeding of swing arm mode is adopted in feeding, its feed route is an arcuation, the relief angle size of its tool sharpening realizes by the height of adjusting the relative emery wheel of cutter in addition, the height of the relative emery wheel of its cutter directly influences feeding distance again, thereby for raising the efficiency and precision, this machine control system adopts the micro computer structure, and it cooperates numerical-control motor and grating, magnetic valve etc. to constitute a cover automated system again; System is calculated by science such as trigonometric functions, make swing arm feed precision be protected, system and according to the relief angle size and the circular arc size of input sharpening, system calculates the height that cutter need install automatically if the elevating mechanism that is equipped with numerical-control motor is arranged, system with automatic lifting to this height; If do not assemble the elevating mechanism of numerical-control motor, be the height that system-computed goes out in the visual man-machine interface, again with the module pad be adjusted to this height and swing arm this put what position can reach rotary table axle center extensions to wheel face apart from just being the distance of tool arc.

Because the emery wheel size will directly influence the system-computed precision, thereby need often to measure the emery wheel size, input system again is so that system more accurately calculates the feed value; For reducing labour intensity, present embodiment is with reference to the cover automatic measurement system of installing on spindle drum 25 shown in Figure 1; This system mainly is made up of grating gauge head 26, rolling guide 227, pen type cylinder 28, locating piece 29; Wherein rolling guide 227 is installed on the spindle drum 25, and grating gauge head 26 is installed on the slide block of rolling guide 227; Pen type cylinder 28 is installed between spindle drum 25 and rolling guide 227 slide blocks, push-and-pull slide block forward-reverse; Locating piece 29 is installed on the spindle drum 25, is used for grating gauge head 26 location of advancing; Grating gauge head 26 center lines and emery wheel 4 centers are contour.For preventing that sealing and dust enter automatic measurement system, are equipped with an interstage sleeve 31 on wheel guard 30.Pen type cylinder 28 promotes rolling guides 227 slide blocks and moves forward up to running into locating piece 29 during work, this moment system count grating gauge head 26 coordinate figure, system by calculating, can obtain emery wheel external diameter and attrition value again.

Embodiment two

Shown in Fig. 6,7, present embodiment bistrique assembly 236 and motor 237 are fixedly mounted on the body 238 together, and wheel face 239 is parallel with bistrique assembly 236.Swing arm is directly combined by the cross axle disjunctor in the present embodiment, and this swing arm lateral shaft 40 gap between two ends cooperation is installed on the body 238, and the center position of swing arm lateral shaft 40 is in the horizontal direction apart from 2391 millimeters of wheel face.The upper end of swing arm vertical axis 41 is assembled into a rotary table 243 flexibly by bearing 342 and panoramic table; A little cross slid platform 244 is installed on the rotary table 243, a knife rest 245 is installed on the little cross slid platform 244, be placed with module edge bearing 246 in the knife rest 245.In order to improve rotary table 243 precision, present embodiment rotary table 243 is equipped with worm screw 47 transmission mechanisms.238 of the lateral shaft 40 of swing arm and bodies are installed a two shaft cylinder 48, promote about swing arm and move back and forth.

With reference to shown in Figure 7, the elasticity voltage stabilizing feed arrangement of present embodiment swing arm mainly is made up of cylinder 249, little Mobile Slide 250, screw mandrel 51, stepper motor 52; The slide of little Mobile Slide 250 is fixedly mounted on the body 238, slide plate one end of little Mobile Slide 250 is equipped with a round steel bar 54 parallel with wheel face 239, the slide plate other end of little Mobile Slide 250 is equipped with a rhizoid bar 51, and screw mandrel 51 other ends and stepper motor 52 link; Cylinder 249 is installed on the body 238, and it is close to little Mobile Slide 250 to hold swing arm vertical axis 41 with steel wire rope 53.In order to guarantee the grazing of wheel face behind the long-time sharpening, present embodiment is installed a bearing 456 at swing arm vertical axis 41 tail ends with insulating bar 55 and is contacted with the cambered surface of the slide plate of little Mobile Slide 250, the slide plate of little Mobile Slide 250 adopts insulating materials, round steel bar 54 adopts bearing steel material, round steel bar 54 is connected to the 24V negative power supply, bearing 456 energising that links to each other with microcomputer controller.

Claims

1. swing arm knife tool arc edging machine, it mainly is made up of body, control system, bistrique assembly, little cross slide seat, rotary table, knife rest; It is characterized in that: with the perpendicular direction of wheel face an oscillating arm mechanisms is installed, this oscillating arm mechanisms mainly is made up of central shaft and swing arm; Rotary table is installed in the swing arm, little cross slide seat is installed on the rotary table, on the little cross slide seat knife rest is installed; On body, be equipped with one parallel with the wheel face direction move back and forth slide unit, bistrique assembly or oscillating arm mechanisms are installed in and move back and forth on the slide unit.

2. swing arm knife tool arc edging machine according to claim 1 is characterized in that: described control system adopts microcomputer system, and on the swing arm delivering gear numerical-control motor or grating is installed.

3. swing arm knife tool arc edging machine according to claim 1 is characterized in that: the parallel installation with wheel face of described bistrique assembly.

4. swing arm knife tool arc edging machine according to claim 1 is characterized in that: the feed mechanism of described swing arm adopts elasticity voltage stabilizing self-feed mechanism.

5. swing arm knife tool arc edging machine according to claim 1 is characterized in that: the measuring system that a cover is measured the emery wheel size automatically is installed on the holder of described bistrique assembly.

6. swing arm knife tool arc edging machine according to claim 1, it is characterized in that: described rotary table is equipped with worm gearing.

7. swing arm knife tool arc edging machine according to claim 1 is characterized in that: between described little cross slide seat and knife rest elevating mechanism is installed.

8. according to claim 1 or 4 described swing arm knife tool arc edging machines, it is characterized in that: the slide unit and the swing arm of described elasticity voltage stabilizing self-feed mechanism are respectively installed a locating piece with insulating materials respectively, two locating pieces wherein one connect power supply, another piece connected control system.

9. swing arm knife tool arc edging machine according to claim 5 is characterized in that: the measuring system of described automatic measurement emery wheel size mainly is made up of grating gauge head, small-sized slide unit, pen type cylinder, locating piece; Its middle-size and small-size slide unit is installed between spindle drum and the grating gauge head, and the pen type cylinder is installed between the slide block of spindle drum and small-sized slide unit, and locating piece is installed on the spindle drum, and grating gauge head center line and emery wheel center are in positive and negative 20.