CN104259492A - Lathe sliding box - Google Patents
Lathe sliding box Download PDFInfo
- Publication number
- CN104259492A CN104259492A CN201410485015.1A CN201410485015A CN104259492A CN 104259492 A CN104259492 A CN 104259492A CN 201410485015 A CN201410485015 A CN 201410485015A CN 104259492 A CN104259492 A CN 104259492A
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- China
- Prior art keywords
- gear
- cam
- worm
- link rod
- worm set
- Prior art date
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Classifications
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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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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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
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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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
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/58—Safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a lathe sliding box; a transverse knife feeding gear and a longitudinal knife feeding gear are installed on front and rear sides of a middle gear on a wheel shaft; the middle gear, the transverse knife feeding gear and the longitudinal knife feeding gear are respectively engaged with an annular gear; a control handle shaft is parallel to the wheel shaft; a handle capable of driving the control handle shaft to rotate or slide forwards and backwards is installed on the control handle shaft; the annular gear is rotationally connected to one end of a sliding link rod, and the middle part of the sliding link rod is installed on a sliding link rod shaft that is parallel to the control handle shaft; a sliding link rod driving plate is fixedly installed on the control handle shaft and provided with a sliding link rod slot extending along the circumference, and the other end of the sliding link rod is inserted into the sliding link rod slot. A concave arc cam is installed on the control handle shaft, the rear end face of the concave arc cam is provided with a concave arc groove in which a link rod pin is inserted, and the outer end of the link rod pin is hinged to the upper end of a half nuts control link rod. According to the sliding box, interlocking of the transverse knife feeding gear, the longitudinal knife feeding gear and the half nuts is achieved by the control handle.
Description
Technical field
The present invention relates to a kind of lathe, particularly relate to a kind of lathe carriage, belong to machine tool technology field.
Background technology
Slip crate is the important component part of lathe, and it coordinates with feed box can allow knife rest carry out screw chasing, the functions such as vertical, horizontal feed feeding and fast movement.Slip crate comprises in length and breadth to the operating mechanism of power feed and fast movement, opening nut mechanism, mutual interlocking gear and overload protection arrangement.
Slip crate casing is installed with wheel shaft, the middle part of wheel shaft is installed with idler gear, the both sides, front and back of idler gear are set with traverse feed gear and long feed gear, traverse feed gear and long feed gear can rotate respectively on wheel shaft, and idler gear, traverse feed gear and long feed gear can be meshed with ring gear respectively.When ring gear is simultaneously with idler gear and long feed gears meshing and when axially respectively engaging a half thickness, the motion transmission of wheel shaft is to long feed gear, and long feed gear shaft finally drives saddle long feed to second half exposing by gear.When ring gear is simultaneously with idler gear and traverse feed gears meshing, the motion transmission of wheel shaft is to traverse feed gear, and traverse feed gear finally drives middle carriage traverse feed.
Slip crate is also provided with clasp nut operation link rod, clasp nut operation link rod moves upward and clasp nut can be made to close, and is meshed, realizes the feeding of machining screw with leading screw.Otherwise clasp nut operation link rod moves downward and can make clasp nut separately, realizes longitudinal direction, crossrange maneuvering feeding or movement fast.
Simultaneously mutual interlocking gear prevents vertical transverse movement and cutting thread campaign from connecting, and namely long feed, traverse feed and leading screw clasp nut folding three action requests interlock.Existing mutual interlocking gear is generally handled respectively by two to three handles, very loaded down with trivial details.
When the slip crate of present lathe transships, generally pass through adding copper pin or steel ball V-shaped groove device before feed rod.If use copper pin, when the overload occurs, copper pin is sheared thus is disconnected by driving-chain; If with steel ball V-shaped groove device, when the overload occurs, steel ball skids at V-shaped groove end, thus is disconnected by driving-chain.It is destructive protection that copper pin is sheared, and need reinsert copper pin during recovery.The unit protection of steel ball V-shaped groove, steel ball skids at V-shaped groove end when the overload occurs, and steel ball easily causes damage to V-shaped groove end.These two kinds of overload protections have limitation.
Summary of the invention
The object of the invention is to, overcome problems of the prior art, a kind of lathe carriage is provided, a control crank axle can be adopted to realize the interlocking of traverse feed gear and long feed gear.
For solving above technical problem, a kind of lathe carriage of the present invention, comprise casing, described casing is installed with wheel shaft, the middle part of described wheel shaft is installed with idler gear, the both sides, front and back of described idler gear are set with long feed gear and traverse feed gear, described traverse feed gear and long feed gear can rotate respectively on described wheel shaft, described idler gear, traverse feed gear and long feed gear can be meshed with ring gear respectively, also comprise the clasp nut operation link rod driving clasp nut action by moving up and down, also comprise control crank axle, the middle part of described control crank axle is arranged in control crank seat and can rotates or slide anteroposterior at control crank seat, the axis of described control crank axle and the axis of described wheel shaft are parallel to each other, one end of described control crank axle is provided with the handle that can drive the rotation of control crank axle or slide anteroposterior, described ring gear is rotatably connected to one end of slip link rod, and the middle part of described slip link rod to be arranged on slip link rod axle and can along slip link rod axle slide anteroposterior, and the axis being parallel of described slip link rod axle is in the axis of described control crank axle, described control crank axle is installed with slip drive links dish, described slip drive links dish is provided with slip link rod slot circumferentially, and the other end of described slip link rod is plugged in described slip link rod slot.
Relative to prior art, the present invention achieves following beneficial effect: dropped or promote control crank axle by handle when moving along own axes, and the dribbling of slip drive links is moved slip link rod and moved forward and backward.When slip link rod slot can ensure that slip drive links dish rotates within the specific limits, slip link rod all can be reliably driven to move forward and backward.When slip link rod moves forward, ring gear simultaneously axially respectively engages a half thickness with idler gear and long feed gears meshing, thus the motion transmission of wheel shaft is to long feed gear, long feed gear shaft finally drives saddle long feed to second half exposing by gear; In like manner, when slip link rod moves backward, with idler gear and traverse feed gears meshing while of ring gear, thus the motion transmission of wheel shaft is to traverse feed gear, and traverse feed gear finally drives middle carriage traverse feed; When slip link rod is positioned at centre position, ring gear only engages with idler gear, and traverse feed gear and long feed gear all do not rotate.Traverse feed gear and long feed gear achieve interlocking on a control crank axle thus.
As improvement of the present invention, described control crank axle be circumferentially provided with gathering sill, be plugged with lock screw in described gathering sill, described gathering sill comprises the longitudinal gears meshing lock slots, the transverse gear engagement lock slots and clasp nut lock slots that are interconnected; It is identical in phase place circumferentially that described longitudinal gears meshing lock slots and described transverse gear engage lock slots, and at axially-spaced one segment distance; Described clasp nut lock slots is axially engaging between lock slots with described transverse gear at described longitudinal gears meshing lock slots, and it is contrary to engage lock slots at phase place circumferentially and described longitudinal gears meshing lock slots and described transverse gear.It is identical in phase place circumferentially that longitudinal gears meshing lock slots and transverse gear engage lock slots, control crank axle only can enter longitudinal gears meshing lock slots or transverse gear engagement lock slots when reversely rotating, reversely rotating after pulling forward control crank axle to extreme position makes lock screw be stuck in longitudinal gears meshing lock slots, and now long feed gear is driven; Reversely rotate after promoting control crank axle to extreme position backward and lock screw is stuck in transverse gear engagement lock slots, now traverse feed gear is driven; Rotating forward in the axial centre position of gathering sill makes lock screw be stuck in clasp nut lock slots, and now long feed gear and traverse feed gear are not all driven.Gathering sill and lock screw can play locking action, prevent control crank axle to be subjected to displacement due to misoperation.
As improvement of the present invention, described control crank axle is provided with away from the other end of described handle the cam allocating slot extended vertically, cam bearing pin is connected with in described cam allocating slot, the two ends of described cam bearing pin are fixed on the front end of concave arc cam, described concave arc cam and described control crank axle coaxial line, the axis of described cam bearing pin and the intersect vertical axis of described concave arc cam; The rear end face of described concave arc cam is provided with concave arc groove, is plugged with link pin in described concave arc groove, and the upper end that the external end head of described link pin and described clasp nut operate link rod is hinged.Control crank axle can be stirred concave arc cam by cam allocating slot and cam bearing pin and rotate, when control crank axle slides axially, link pin still keeps being plugged in concave arc groove, when the axial line distance of concave arc groove and control crank axle changes, concave arc cam will affect clasp nut to operate link rod by link pin and move up and down, thus make clasp nut carry out action.
As improvement of the present invention, described concave arc groove comprises the arc groove and cam arc groove that mutually smoothly transit and connect, described arc groove remains unchanged apart from the distance of described concave arc camshaft line, and described in described cam arc slot pitch, the distance of concave arc camshaft line changes with the rotation of concave arc cam; When described lock screw is arranged in described longitudinal gears meshing lock slots or described transverse gear engagement lock slots, described link pin is arranged in described arc groove; When described lock screw is arranged in described clasp nut lock slots, described link pin is arranged in described cam arc groove.When the reverse rotation of control crank axle makes lock screw enter in longitudinal gears meshing lock slots or transverse gear engagement lock slots, namely when long feed gear or traverse feed gear are driven, link pin is arranged in arc groove, move in arc groove because the distance of link pin and control crank axle axis is constant, clasp nut can not be made to operate link rod and move up and down.Otherwise, when control crank axle rotate forward lock screw is entered in clasp nut lock slots time, namely when long feed gear or traverse feed gear be not by driving, link pin is arranged in cam arc groove, moving in cam arc groove makes the distance of link pin and control crank axle axis change, thus affects clasp nut operation link rod to move up and down.Thus on a control crank axle, traverse feed gear, long feed gear and clasp nut operation link rod achieves three's interlocking, enormously simplify structure.
As improvement of the present invention, described traverse feed gear is provided with traverse feed equipment gear away from the outside of idler gear, and the outer face that described traverse feed equipment gear is fixed on described traverse feed gear is rotated with described traverse feed gear synchronous.Traverse feed equipment gear and traverse feed gear coaxial rotation, and can speed ratio be changed, after traverse feed gear is driven by ring gear, traverse feed equipment gear, by the outside transmission of gear, finally drives middle carriage traverse feed.
As another improvement of the present invention, described wheel shaft is also provided with worm gear, described worm gear is meshed with worm shaft, the periphery of described worm shaft is provided with worm set, the left end of described worm shaft is connected with the right-hand member of power shaft by Hooks coupling universal coupling, the left end of described worm set is hinged on worm set rotary support, and described worm set rotary support is supported on described casing; The right-hand member of described worm shaft is by the right-hand member of bearings at described worm set, the top of described worm set right-hand member is hinged with worm set connecting rod, the upper articulation of described worm set connecting rod is at the left end of worm set crank, the middle part of described worm set crank is hinged on crank axle, and the two ends of described crank axle are supported on described casing.Drive worm gear by worm shaft, and then live axle rotates, wheel shaft can drive traverse feed gear or long feed pinion rotation; When cutting thread, worm shaft must depart from worm gear and engages, and traverse feed gear and long feed gear can not be rotated.Worm set crank is rotated counterclockwise and worm set connecting rod is declined, and then the right-hand member of worm shaft and worm set is declined, depart from worm gear and engage, when the right-hand member of worm shaft and worm set declines, the left end of worm set rotates around worm set rotary support, the left end of worm shaft is provided with Hooks coupling universal coupling, also can rotate.
As improvement of the present invention, the middle part of described crank axle is hinged on the upper end of right swinging mounting, the lower end of described right swinging mounting is provided with the turning of stretching out to the left, described corner is fixed with vertical jacking block, the below of described worm set right-hand member is fixedly connected with the horizontal jacking block stretched out to the right, and the right-hand member of described horizontal jacking block is overlapped on the end face of described vertical jacking block.Normal operating conditions, horizontal jacking block is overlapped on the end face of vertical jacking block, makes worm shaft maintenance level; When the lower end of right swinging mounting swings to the right, the lower end of right swinging mounting drives vertical jacking block to depart from horizontal jacking block, loses and supports and fall, depart from engage with worm gear below the right-hand member of worm set, affect worm set connecting rod to lower swing, worm set crank is rotated counterclockwise simultaneously.
As improvement of the present invention, the upper end of described right swinging mounting bends respectively to the left and right sides, is supported with worm set spring between the upper left end head of described right swinging mounting and the right-hand member top of described worm set; The upper right end head of described right swinging mounting is plugged with cam follower pin from top to bottom, the lower end of described cam follower pin is supported on the outer peripheral face of worm set cam, described worm set cam is sleeved on described control crank axle, and the outer peripheral face of described worm set cam is provided with arc surface and plane; The right-hand member of described worm set crank is also connected with crank foot piece, and the front end face of described worm set cam is provided with crank and drives pin; When described worm set cam is rotated counterclockwise plane to its outer peripheral face and described cam driven pin contacts, described crank drives pin to state crank foot piece against residence worm set crank is rotated clockwise.The outer peripheral face of worm set cam is provided with arc surface and plane, present the circle of unfilled corner, when worm shaft position is in engagement, cam follower pin is resisted against in the plane of worm set cam, and the worm set spring on the left of right swinging mounting upper end is compressed props up worm set downwards.
When needing worm shaft and worm gear to depart to engage, control crank axle turns right, lock screw snaps in clasp nut lock slots, worm set cam turns to arc surface and cam driven pin contacts, cam follower pin upwards lifts left, the upper end of right swinging mounting swings left, then the lower end of right swinging mounting swings to the right, horizontal jacking block is made to depart from the end face of vertical jacking block, now crank drives pin disengaging crank foot piece that worm set crank is rotated counterclockwise, worm set connecting rod moves downward, and the right-hand member of worm set falls.
When needing worm shaft and worm gear to recover to engage, slewing maneuver Handle axis makes lock screw depart from folding nut locking groove left, longitudinal gears meshing lock slots or transverse gear engagement lock slots can be entered, worm set cam turns to plane and cam driven pin contacts, cam follower pin moves downward, the upper end of right swinging mounting swings to the right, then the lower end of right swinging mounting swings left; Crank drives pin throw crank foot piece that worm set crank is rotated clockwise simultaneously, worm set crank makes worm set connecting rod move upward, carried by the right-hand member of worm set, horizontal jacking block is overlapped on the end face of vertical jacking block again, makes worm shaft recover engagement.
As improvement of the present invention, be provided with cam orientation groove circumferentially in the middle part of the periphery of described worm set cam, described cam orientation groove is plugged with axial location pin, and described axial location pin is fixed on described casing.The termination of axial location pin is embedded in cam orientation groove, can when control crank axle slides axially, and worm set cam still keeps original axial location.
As improvement of the present invention, the turning of described right swinging mounting is hinged with the actuating linkage stretched out left, the left end of described actuating linkage is hinged on the lower end of left swinging mounting, the midfoot support of described power shaft is on described left swinging mounting and be positioned at above described actuating linkage, the left end of described power shaft is provided with output gear, is provided with elastic clutch between described output gear and described left swinging mounting; The middle and upper part of described left swinging mounting is hinged on left swing and moves on rack shaft, and described left swing is moved rack shaft and is supported on described casing.When output gear transships, the elastic clutch of its right is beated and to be ejected to the right by left swinging mounting, the left swing of left swinging mounting around middle and upper part is moved rack shaft and is swung certain angle, the lower end of left swinging mounting drives actuating linkage to beat to the right, the lower end that the right-hand member of actuating linkage promotes right swinging mounting swings to the right, the lower end of right swinging mounting drives vertical jacking block to depart from horizontal jacking block, loses and support and fall below the right-hand member of worm set.
As improvement of the present invention, the upper end of described left swinging mounting is plugged with preloading spring axle from left to right, described preloading spring axle is set with preloading spring, described preloading spring is on the left of the upper end of described left swinging mounting and between the stepped hole being supported on described left swinging mounting and the boss of described spring shaft, the left side of described preloading spring axle is provided with pretension handwheel, and described pretension handwheel is uneven structure towards the end face of described preloading spring axle and is resisted against on the left end head of described preloading spring axle.The tension force of preloading spring makes the upper end of left swinging mounting have trend to the right, the elastic clutch moving pedestal lower end with left swing forms the balance of power, the decrement of adjustment preloading spring, by the size of pretightning force above the left swinging mounting of adjustment, determines left swinging mounting jerk value in the case of an overload jointly with elastic clutch.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, and accompanying drawing only provides reference and explanation use, is not used to limit the present invention.
Fig. 1 is the front view of lathe carriage of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the stereogram of Fig. 1.
Fig. 5 is the front view of operating mechanism in lathe carriage of the present invention.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the left view of Fig. 5.
Fig. 8 is the stereogram one of Fig. 5.
Fig. 9 is the stereogram two of Fig. 5.
Figure 10 is the stereogram of control crank axle in operating mechanism.
Figure 11 is the stereogram of concave arc cam in operating mechanism.
Figure 12 is the front view of clasp nut disengaging gear in lathe carriage of the present invention.
Figure 13 is the top view of Figure 12.
Figure 14 is the stereogram one of Figure 12.
Figure 15 is the stereogram two of Figure 12.
In figure: 1. control crank seat;
2. control crank axle; 2a. gathering sill; The longitudinal gears meshing lock slots of 2a1.; 2a2. transverse gear engagement lock slots; 2a3. clasp nut lock slots; 2b. cam allocating slot;
3. handle;
4. lock screw;
5. slip drive links dish; 5a. slip link rod slot;
6. concave arc cam; 6a. arc groove; 6b. cam arc groove; 6c. cam bearing pin;
7. link pin; 8. clasp nut operation link rod;
9. slip link rod; 9a. ring gear; 9b. slip link rod axle;
10. wheel shaft; 10a. idler gear; 10b1. traverse feed gear; 10b2. traverse feed equipment gear; 10c. long feed gear; 10d. worm gear;
11. worm shafts;
12. worm sets; The horizontal jacking block of 12a.;
13. worm set rotary supports; 14. Hooks coupling universal couplings; 15. power shafts; 16. output gears; 17. elastic clutch; 18. left swinging mountings; 18a. left swing moves rack shaft;
19. actuating linkages 19;
20. right swinging mountings; The vertical jacking block of 20a.; 20b. cam follower pin;
21. worm set connecting rods; 22. crank axles; 22a. worm set crank; 22a1. crank foot piece;
23. worm set cams; 23a. crank drives pin; 23b. cam orientation groove; 23c. axial location pin;
24. worm set springs;
25. preloading spring axles; 25a. preloading spring; 25b. pretension handwheel.
Detailed description of the invention
As shown in Figures 1 to 10, lathe carriage of the present invention comprises casing, casing is installed with wheel shaft 10, the middle part of wheel shaft 10 is installed with idler gear 10a, the both sides, front and back of idler gear 10a are set with long feed gear 10c and traverse feed gear 10b1, traverse feed gear 10b1 and long feed gear 10c can rotate respectively on wheel shaft 10, and idler gear 10a, traverse feed gear 10b1 and long feed gear 10c can be meshed with ring gear 9a respectively.
Lathe carriage also comprises control crank axle 2, the middle part of control crank axle 2 is arranged in control crank seat 1 and can rotates or slide anteroposterior at control crank seat 1, the axis of control crank axle 2 and the axis of wheel shaft 10 are parallel to each other, and one end of control crank axle 2 is provided with and control crank axle 2 can be driven to rotate or the handle 3 of slide anteroposterior; Ring gear 9a is rotatably connected to one end of slip link rod 9, and the middle part of slip link rod 9 to be arranged on slip link rod axle 9b and can along slip link rod axle 9b slide anteroposterior, and the axis being parallel of slip link rod axle 9b is in the axis of control crank axle 2; Control crank axle 2 is installed with slip drive links dish 5, slip drive links dish 5 is provided with slip link rod slot 5a circumferentially, and the other end of slip link rod 9 is plugged in slip link rod slot 5a.
By handle 3 drop or promote control crank axle 2 move along own axes time, slip drive links dish 5 drives slip link rod 9 to move forward and backward.When slip link rod slot 5a can ensure that slip drive links dish 5 rotates within the specific limits, slip link rod 9 all can be reliably driven to move forward and backward.
When slip link rod 9 moves forward, ring gear 9a engages with idler gear 10a and long feed gear 10c simultaneously and axially respectively engages a half thickness, thus the motion transmission of wheel shaft 10 is to long feed gear 10c, long feed gear 10c axially expose second half finally drive saddle long feed by gear.
In like manner, when slip link rod 9 moves backward, ring gear 9a engages with idler gear 10a and traverse feed gear 10b1 simultaneously, thus the motion transmission of wheel shaft 10 is to traverse feed gear 10b1, and traverse feed gear 10b1 finally drives middle carriage traverse feed; When slip link rod 9 is positioned at centre position, ring gear 9a only engages with idler gear 10a, and traverse feed gear 10b1 and long feed gear 10c does not all rotate.Traverse feed gear 10b1 and long feed gear 10c achieves interlocking on a control crank axle 2 thus.
As shown in Fig. 6, Figure 10, control crank axle 2 be circumferentially provided with gathering sill 2a, be plugged with lock screw 4 in gathering sill 2a, gathering sill 2a comprises the longitudinal gears meshing lock slots 2a1, the transverse gear engagement lock slots 2a2 and clasp nut lock slots 2a3 that are interconnected; It is identical in phase place circumferentially that longitudinal gears meshing lock slots 2a1 and transverse gear engage lock slots 2a2, and at axially-spaced one segment distance; Clasp nut lock slots 2a3 is axially engaging between lock slots 2a2 with transverse gear at longitudinal gears meshing lock slots 2a1, and it is contrary to engage lock slots 2a2 at phase place circumferentially and longitudinal gears meshing lock slots 2a1 and transverse gear.
It is identical in phase place circumferentially that longitudinal gears meshing lock slots 2a1 and transverse gear engage lock slots 2a2, longitudinal gears meshing lock slots 2a1 or transverse gear engagement lock slots 2a2 only can be entered when control crank axle 2 reversely rotates, reversely rotating after pulling forward control crank axle 2 to extreme position makes lock screw 4 be stuck in longitudinal gears meshing lock slots 2a1, and now long feed gear 10c is driven.
Reversely rotate after promoting control crank axle 2 to extreme position backward and lock screw 4 is stuck in transverse gear engagement lock slots 2a2, now traverse feed gear 10b1 is driven.
Rotate forward in the axial centre position of gathering sill 2a and make lock screw 4 be stuck in clasp nut lock slots 2a3, now long feed gear 10c and traverse feed gear 10b1 is not all driven.Gathering sill 2a and lock screw 4 can play locking action, prevent control crank axle 2 to be subjected to displacement due to misoperation.
Lathe carriage is also provided with the clasp nut operation link rod 8 driving clasp nut action by moving up and down.Control crank axle 2 is provided with away from the other end of handle the cam allocating slot 2b extended vertically, cam bearing pin 6c is connected with in cam allocating slot 2b, the two ends of cam bearing pin 6c are fixed on the front end of concave arc cam 6, concave arc cam 6 and control crank axle 2 coaxial line, the axis of cam bearing pin 6c and the intersect vertical axis of concave arc cam 6; The rear end face of concave arc cam 6 is provided with concave arc groove, is plugged with link pin 7 in concave arc groove, and the upper end that the external end head of link pin 7 and clasp nut operate link rod 8 is hinged.
Control crank axle 2 can be stirred concave arc cam 6 by cam allocating slot 2b and cam bearing pin 6c and rotate, when control crank axle 2 slides axially, link pin 7 still keeps being plugged in concave arc groove, when the axial line distance of concave arc groove and control crank axle 2 changes, concave arc cam 6 will affect clasp nut to operate link rod 8 by link pin 7 and move up and down, thus make clasp nut carry out action.
As shown in figure 11, the distance that concave arc groove comprises arc groove 6a and cam arc groove 6b, arc groove 6a distance concave arc cam 6 axis mutually smoothly transitting and connect remains unchanged, and cam arc groove 6b changes apart from the distance of concave arc cam 6 axis with the rotation of concave arc cam 6; When lock screw 4 is arranged in longitudinal gears meshing lock slots 2a1 or transverse gear engagement lock slots 2a2, link pin 7 is arranged in arc groove 6a; When lock screw 4 is arranged in clasp nut lock slots 2a3, link pin 7 is arranged in cam arc groove 6b.
When control crank axle 2 reverse rotation makes lock screw 4 enter in longitudinal gears meshing lock slots 2a1 or transverse gear engagement lock slots 2a2, namely when long feed gear 10c or traverse feed gear 10b1 is driven, link pin 7 is arranged in arc groove 6a, in arc groove 6a, the mobile distance due to link pin 7 and control crank axle 2 axis is constant, clasp nut can not be made to operate link rod 8 and move up and down.
Otherwise, when control crank axle 2 rotate forward lock screw 4 is entered in clasp nut lock slots 2a3 time, namely when long feed gear 10c or traverse feed gear 10b1 is not by driving, link pin 7 is arranged in cam arc groove 6b, in cam arc groove 6b, the mobile link pin 7 that makes changes with the distance of control crank axle 2 axis, thus affects clasp nut operation link rod 8 to move up and down.Thus on a control crank axle 2, traverse feed gear 10b1, long feed gear 10c and clasp nut operation link rod 8 achieves three's interlocking, enormously simplify structure.
As shown in Fig. 2, Fig. 4, Fig. 6 and Fig. 9, traverse feed gear 10b1 is provided with traverse feed equipment gear 10b2 away from the outside of idler gear 10a, on the outer face that traverse feed equipment gear 10b2 is fixed on traverse feed gear 10b1 and with traverse feed gear 10b1 synchronous axial system.Traverse feed equipment gear 10b2 and traverse feed gear 10b1 coaxial rotation, and can speed ratio be changed, after traverse feed gear 10b1 is driven by ring gear 9a, traverse feed equipment gear 10b2, by the outside transmission of gear, finally drives middle carriage traverse feed.
As shown in Figure 12 to Figure 15, wheel shaft 10 is also provided with worm gear 10d, worm gear 10d is meshed with worm shaft 11, the periphery of worm shaft 11 is provided with worm set 12, the left end of worm shaft 11 is connected by the right-hand member of Hooks coupling universal coupling 14 with power shaft 15, the left end of worm set 12 is hinged on worm set rotary support 13, and worm set rotary support 13 is supported on casing; The right-hand member of worm shaft 11 is by the right-hand member of bearings at worm set 12, the top of worm set 12 right-hand member is hinged with worm set connecting rod 21, the upper articulation of worm set connecting rod 21 is at the left end of worm set crank 22a, the middle part of worm set crank 22a is hinged on crank axle 22, and the two ends of crank axle 22 are supported on casing.
Drive worm gear 10d by worm shaft 11, and then live axle 10 rotates, wheel shaft 10 can drive traverse feed gear 10b1 or long feed gear 10c to rotate; When cutting thread, worm shaft 11 must depart from worm gear 10d and engages, and traverse feed gear 10b1 and long feed gear 10c can not be rotated.Worm set crank 22a is rotated counterclockwise and worm set connecting rod 21 is declined, and then the right-hand member of worm shaft 11 and worm set 12 is declined, depart from worm gear 10d and engage, when the right-hand member of worm shaft 11 and worm set 12 declines, the left end of worm set 12 rotates around worm set rotary support 13, the left end of worm shaft 11 is provided with Hooks coupling universal coupling 14, also can rotate.Worm gear 10d and worm shaft 11 are inclined tooth, and when ensureing to throw off mutually or engage, profile of tooth is not interfered.
The middle part of crank axle 22 is hinged on the upper end of right swinging mounting 20, the lower end of right swinging mounting 20 is provided with the turning of stretching out to the left, corner is fixed with vertical jacking block 20a, the below of worm set right-hand member is fixedly connected with the horizontal jacking block 12a stretched out to the right, and the right-hand member of horizontal jacking block 12a is overlapped on the end face of vertical jacking block 20a.Normal operating conditions, horizontal jacking block 12a is overlapped on the end face of vertical jacking block 20a, makes worm shaft 11 maintenance level; When the lower end of right swinging mounting 20 swings to the right, the lower end of right swinging mounting 20 drives vertical jacking block 20a to depart from horizontal jacking block 12a, lose below the right-hand member of worm set 12 and support and fall, depart from worm gear 10d and engage, affect worm set connecting rod 21 to lower swing, worm set crank 22a is rotated counterclockwise simultaneously.
The upper end of right swinging mounting 20 bends respectively to the left and right sides, is supported with worm set spring 24 between the upper left end head of right swinging mounting 20 and the right-hand member top of worm set 12; The upper right end head of right swinging mounting 20 is plugged with cam follower pin 20b from top to bottom, the lower end of cam follower pin 20b is supported on the outer peripheral face of worm set cam 23, worm set cam 23 is sleeved on control crank axle 2, and the outer peripheral face of worm set cam 23 is provided with arc surface and plane; The right-hand member of worm set crank 22a is also connected with crank foot piece 22a1, and the front end face of worm set cam 23 is provided with crank and drives pin 23a; When the plane that worm set cam 23 is rotated counterclockwise to its outer peripheral face contacts with cam follower pin 20b, crank drives pin 23a against living in crank foot piece 22a1, worm set crank 22a to be rotated clockwise.The outer peripheral face of worm set cam 23 is provided with arc surface and plane, present the circle of unfilled corner, when worm shaft 11 is in engagement, cam follower pin 20b is resisted against in the plane of worm set cam 23, and the worm set spring 24 on the left of right swinging mounting 20 upper end is compressed props up worm set 12 downwards.
When needing worm shaft 11 and worm gear 10d to depart to engage, control crank axle 2 turns right, worm set cam 23 turns to arc surface and contacts with cam follower pin 20b, cam follower pin 20b upwards lifts left, the upper end of right swinging mounting 20 swings left, then the lower end of right swinging mounting 20 swings to the right, horizontal jacking block 12a is made to depart from the end face of vertical jacking block 20a, now crank drives pin 23a disengaging crank foot piece 22a1 that worm set crank 22a is rotated counterclockwise, worm set connecting rod 21 moves downward, and the right-hand member of worm set 12 falls.
When needing worm shaft 11 and worm gear 10d to recover to engage, slewing maneuver Handle axis 2 makes lock screw 4 enter longitudinal gears meshing lock slots 2a1 or transverse gear engagement lock slots 2a2 left, worm set cam 23 turns to plane and contacts with cam follower pin 20b, cam follower pin 20b moves downward, the upper end of right swinging mounting 20 swings to the right, then the lower end of right swinging mounting 20 swings left; Crank drives pin 23a throw crank foot piece 22a1 that worm set crank 22a is rotated clockwise simultaneously, worm set crank 22a makes worm set connecting rod 21 move upward, the right-hand member of worm set 12 has been carried, horizontal jacking block 12a is overlapped on the end face of vertical jacking block 20a again, makes worm shaft 11 recover engagement.
Be provided with cam orientation groove 23b circumferentially in the middle part of the periphery of worm set cam 23, cam orientation groove 23b is plugged with axial location pin 23c, and axial location pin 23c is fixed on casing.The termination of axial location pin 23c is embedded in cam orientation groove 23b, can when control crank axle 2 slides axially, and worm set cam 23 still keeps original axial location.
The turning of right swinging mounting 20 is hinged with the actuating linkage 19 stretched out left, the left end of actuating linkage 19 is hinged on the lower end of left swinging mounting 18, the midfoot support of power shaft 15 is on left swinging mounting 18 and be positioned at above actuating linkage 19, the left end of power shaft 15 is provided with output gear 16, is provided with elastic clutch 17 between output gear 16 and left swinging mounting 18; The middle and upper part of left swinging mounting 18 is hinged on left swing and moves on rack shaft 18a, and left swing is moved rack shaft 18a and is supported on casing.When output gear 16 transships, the elastic clutch 17 of its right is beated and to be ejected to the right by left swinging mounting 18, the left swing of left swinging mounting 18 around middle and upper part is moved rack shaft 18a and is swung certain angle, the lower end of left swinging mounting 18 drives actuating linkage 19 to beat to the right, the lower end that the right-hand member of actuating linkage 19 promotes right swinging mounting 20 swings to the right, the lower end of right swinging mounting 20 drives vertical jacking block 20a to depart from horizontal jacking block 12a, loses and support and fall below the right-hand member of worm set 12.
The upper end of left swinging mounting 18 is plugged with preloading spring axle 25 from left to right, preloading spring axle 25 is set with preloading spring 25a, preloading spring 25a is on the left of the upper end of left swinging mounting 18 and between the stepped hole being supported on left swinging mounting 18 and the boss of spring shaft, the left side of preloading spring axle 25 is provided with pretension handwheel 25b, and pretension handwheel 25b is uneven structure towards the end face of preloading spring axle 25 and is resisted against on the left end head of preloading spring axle 25.The tension force of preloading spring 25a makes the upper end of left swinging mounting 18 have trend to the right, the balance of power is formed with the elastic clutch 17 of left swinging mounting 18 lower end, the decrement of adjustment preloading spring 25a, by the size of pretightning force above the left swinging mounting 18 of adjustment, determines left swinging mounting 18 jerk value in the case of an overload jointly with elastic clutch 17.
The foregoing is only the better possible embodiments of the present invention, non-ly therefore limit to scope of patent protection of the present invention.In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.The present invention can pass through without the technical characteristic described or adopt existing techniques in realizing, does not repeat them here.
Claims (11)
1. a lathe carriage, comprise casing, described casing is installed with wheel shaft, the middle part of described wheel shaft is installed with idler gear, the both sides, front and back of described idler gear are set with long feed gear and traverse feed gear, described traverse feed gear and long feed gear can rotate respectively on described wheel shaft, described idler gear, traverse feed gear and long feed gear can be meshed with ring gear respectively, also comprise the clasp nut operation link rod driving clasp nut action by moving up and down, it is characterized in that: also comprise control crank axle, the middle part of described control crank axle is arranged in control crank seat and can rotates or slide anteroposterior at control crank seat, the axis of described control crank axle and the axis of described wheel shaft are parallel to each other, one end of described control crank axle is provided with the handle that can drive the rotation of control crank axle or slide anteroposterior, described ring gear is rotatably connected to one end of slip link rod, and the middle part of described slip link rod to be arranged on slip link rod axle and can along slip link rod axle slide anteroposterior, and the axis being parallel of described slip link rod axle is in the axis of described control crank axle, described control crank axle is installed with slip drive links dish, described slip drive links dish is provided with slip link rod slot circumferentially, and the other end of described slip link rod is plugged in described slip link rod slot.
2. lathe carriage according to claim 1, it is characterized in that: described control crank axle be circumferentially provided with gathering sill, be plugged with lock screw in described gathering sill, described gathering sill comprises the longitudinal gears meshing lock slots, transverse gear engagement lock slots and the clasp nut lock slots that are interconnected; It is identical in phase place circumferentially that described longitudinal gears meshing lock slots and described transverse gear engage lock slots, and at axially-spaced one segment distance; Described clasp nut lock slots is axially engaging between lock slots with described transverse gear at described longitudinal gears meshing lock slots, and it is contrary to engage lock slots at phase place circumferentially and described longitudinal gears meshing lock slots and described transverse gear.
3. lathe carriage according to claim 2, it is characterized in that: described control crank axle is provided with away from the other end of described handle the cam allocating slot extended vertically, cam bearing pin is connected with in described cam allocating slot, the two ends of described cam bearing pin are fixed on the front end of concave arc cam, described concave arc cam and described control crank axle coaxial line, the axis of described cam bearing pin and the intersect vertical axis of described concave arc cam; The rear end face of described concave arc cam is provided with concave arc groove, is plugged with link pin in described concave arc groove, and the upper end that the external end head of described link pin and described clasp nut operate link rod is hinged.
4. lathe carriage according to claim 3, it is characterized in that: described concave arc groove comprises the arc groove and cam arc groove that mutually smoothly transit and connect, described arc groove remains unchanged apart from the distance of described concave arc camshaft line, and described in described cam arc slot pitch, the distance of concave arc camshaft line changes with the rotation of concave arc cam; When described lock screw is arranged in described longitudinal gears meshing lock slots or described transverse gear engagement lock slots, described link pin is arranged in described arc groove; When described lock screw is arranged in described clasp nut lock slots, described link pin is arranged in described cam arc groove.
5. lathe carriage according to claim 1, it is characterized in that: described traverse feed gear is provided with traverse feed equipment gear away from the outside of idler gear, the outer face that described traverse feed equipment gear is fixed on described traverse feed gear is rotated with described traverse feed gear synchronous.
6. lathe carriage according to any one of claim 1 to 4, it is characterized in that: described wheel shaft is also provided with worm gear, described worm gear is meshed with worm shaft, the periphery of described worm shaft is provided with worm set, the left end of described worm shaft is connected with the right-hand member of power shaft by Hooks coupling universal coupling, the left end of described worm set is hinged on worm set rotary support, and described worm set rotary support is supported on described casing; The right-hand member of described worm shaft is by the right-hand member of bearings at described worm set, the top of described worm set right-hand member is hinged with worm set connecting rod, the upper articulation of described worm set connecting rod is at the left end of worm set crank, the middle part of described worm set crank is hinged on crank axle, and the two ends of described crank axle are supported on described casing.
7. lathe carriage according to claim 6, it is characterized in that: the middle part of described crank axle is hinged on the upper end of right swinging mounting, the lower end of described right swinging mounting is provided with the turning of stretching out to the left, described corner is fixed with vertical jacking block, the below of described worm set right-hand member is fixedly connected with the horizontal jacking block stretched out to the right, and the right-hand member of described horizontal jacking block is overlapped on the end face of described vertical jacking block.
8. lathe carriage according to claim 7, is characterized in that: the upper end of described right swinging mounting bends respectively to the left and right sides, is supported with worm set spring between the upper left end head of described right swinging mounting and the right-hand member top of described worm set; The upper right end head of described right swinging mounting is plugged with cam follower pin from top to bottom, the lower end of described cam follower pin is supported on the outer peripheral face of worm set cam, described worm set cam is sleeved on described control crank axle, and the outer peripheral face of described worm set cam is provided with arc surface and plane; The right-hand member of described worm set crank is also connected with crank foot piece, and the front end face of described worm set cam is provided with crank and drives pin; When described worm set cam is rotated counterclockwise plane to its outer peripheral face and described cam driven pin contacts, described crank drives pin to state crank foot piece against residence worm set crank is rotated clockwise.
9. lathe carriage according to claim 8, it is characterized in that: in the middle part of the periphery of described worm set cam, be provided with cam orientation groove circumferentially, described cam orientation groove is plugged with axial location pin, and described axial location pin is fixed on described casing.
10. lathe carriage according to claim 7, it is characterized in that: the turning of described right swinging mounting is hinged with the actuating linkage stretched out left, the left end of described actuating linkage is hinged on the lower end of left swinging mounting, the midfoot support of described power shaft is on described left swinging mounting and be positioned at above described actuating linkage, the left end of described power shaft is provided with output gear, is provided with elastic clutch between described output gear and described left swinging mounting; The middle and upper part of described left swinging mounting is hinged on left swing and moves on rack shaft, and described left swing is moved rack shaft and is supported on described casing.
11. lathe carriages according to claim 10, it is characterized in that: the upper end of described left swinging mounting is plugged with preloading spring axle from left to right, described preloading spring axle is set with preloading spring, described preloading spring is on the left of the upper end of described left swinging mounting and between the stepped hole being supported on described left swinging mounting and the boss of described spring shaft, the left side of described preloading spring axle is provided with pretension handwheel, and described pretension handwheel is uneven structure towards the end face of described preloading spring axle and is resisted against on the left end head of described preloading spring axle.
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CN104259492B CN104259492B (en) | 2016-09-21 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105562731A (en) * | 2016-02-03 | 2016-05-11 | 扬州力创机床有限公司 | Centralized operation handle device of turning lathe |
CN114536171A (en) * | 2022-04-28 | 2022-05-27 | 泉州兴睿自动化科技有限公司 | Automatic polishing machine |
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CN114536171A (en) * | 2022-04-28 | 2022-05-27 | 泉州兴睿自动化科技有限公司 | Automatic polishing machine |
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