CN102717290B - High-speed reblading mechanism for small drilling and milling center - Google Patents
High-speed reblading mechanism for small drilling and milling center Download PDFInfo
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- CN102717290B CN102717290B CN201210214608.5A CN201210214608A CN102717290B CN 102717290 B CN102717290 B CN 102717290B CN 201210214608 A CN201210214608 A CN 201210214608A CN 102717290 B CN102717290 B CN 102717290B
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Abstract
A high-speed reblading mechanism for a small drilling and milling center comprises a spindle box body, a spindle, a cam shaft and a reblading and blade catching mechanism, wherein an end surface cylindrical cam and a planar cam are sleeved on the cam shaft of an axle, a lever mechanism is connected with a limit sleeve on the reblading and blade catching mechanism to achieve downward stretching and upward pulling of the reblading and blade catching mechanism during rotating of the end surface cylindrical cam, ends of the composite lever mechanism are pressed at two ends of a pin shaft on the spindle to achieve clamping or loosening of a blade handle, and the circumferential curved surface on the planar cam is connected with the reblading and blade catching mechanism to achieve 180-degree rotating of the reblading and blade catching mechanism. The end surface cylindrical cam rotates to drive a fan-shaped gear to swing, and the fan-shaped gear is simultaneously meshed with a gear shaft arranged at the upper end of the reblading and blade catching mechanism to achieve opening and closing actions of a blade claw. According to the high-speed reblading mechanism, a cam structure and a hollow spline shaft structure which are arranged in a spindle box are ingeniously used, so that the spindle box is compact in structure. The reblading mechanism is high in speed and reliable so that worker labor intensity is reduced and production efficiency is improved.
Description
Technical field
The invention belongs to machining center technical field, be specifically related to a kind of high speed cutter-exchange mechanism for small-sized Zuan Xi center.
Background technology
In current existing vertical machining centre, spindle taper hole adopts BT30, BT40 and BT50 equal-specification mounting cutter handle according to specification size, and umbrella shape, disc type tool magazine that tool magazine supporting with it has cutter spacing number not wait, these tool magazines form functional part, and vertical machining centre manufacturer can directly purchase to install and use.And it is smaller in order to process the tool diameter that the less precision component such as hard disc of computer needs, just need to adopt the BT15 spindle taper hole also less than BT30 to reach high-speed cutting, but because BT15 spindle taper hole size is less, precision is high, requirement tool-changing speed is high, cutter-exchange mechanism is complicated, annoyings the growth requirement of China small-sized Zuan Xi center and the processing of less precision component always, is therefore necessary to improve.
Summary of the invention
The technical problem that the present invention solves: a kind of high speed cutter-exchange mechanism for small-sized Zuan Xi center is provided, utilize the cam and hollow spline shaft structure that are arranged in main spindle box, realize programme controlled high-speed automatic tool changing, solve the high speed tool changing difficult problem at small-sized Zuan Xi center.
The technical solution used in the present invention: for the high speed cutter-exchange mechanism at small-sized Zuan Xi center, there is main spindle box body, the A face of described main spindle box body is shaped with and runs through I of B face, II, IV axis hole in III axis hole and non-through B face, its C face is shaped with VI axis hole, D face is shaped with V and VII axis hole, in described I axis hole, main shaft system is installed, in described III axis hole, camshaft system is installed, the camshaft of described camshaft system is set with end face cylindrical cam and plane cam and end face cylindrical cam is positioned at above plane cam, described end face cylindrical cam is shaped with cross section curve groove, circular order groove I and circular order groove II, described plane cam is shaped with circular order face, tool changing is installed in described II axis hole and grabs cutter mechanism, leverage one end and described V axis hole are that axle is hinged, leverage middle-end embeds with the circular order groove I of end face cylindrical cam and is connected, the other end is connected with tool changing and the stop collar of grabbing on cutter mechanism and realizes when end face cylindrical cam rotates tool changing and stretch pull-up under grabbing cutter mechanism, composite lever mechanism and described VI axis hole are that axle is hinged, composite lever mechanism one end embeds with circular order groove II and is connected, the other end is pressed in bearing pin two ends on described main shaft system and realizes the clamping of handle of a knife or unclamp, described circular order face to be connected with grasping mechanism by bearing follower II and tool changing and to realize tool changing when plane cam rotates and grab 180 ° of cutter mechanism rotating, described IV axis hole internal fixtion fan gear, the groove internal fixtion that described fan gear face is shaped with has the bearing follower I be embedded in cross section curve groove, described end face cylindrical cam rotarily drives fan gearing, and described fan gear engages with the gear shaft being placed in tool changing and grabbing cutter mechanism upper end the opening and closing action realizing cutter pawl simultaneously.
Wherein, described leverage comprises overhead cam shift fork, described V axis hole internal fixtion has bearing pin, overhead cam shift fork one end is that fulcrum is fixed on in V axis hole with bearing pin, the middle bearing follower III with embedding in circular order groove I is connected, the other end is provided with the bearing follower IV be connected with tool changing and the circumferential groove on grabbing on cutter mechanism stop collar, controls tool changing and stretch pull-up action under grabbing cutter mechanism by leverage, described composite lever mechanism comprises shift fork connecting rod and main shaft draw-in bar shift fork, fastening with the nut sleeve be placed in VI axis hole by bearing pin one end in the middle part of described shift fork connecting rod, described shift fork connecting rod one end is provided with the bearing follower V embedded in circular order groove II, the shift fork connecting rod other end is shaped with notch, described main shaft draw-in bar shift fork is that fulcrum is fixed in VII axis hole with joint pin, described main shaft draw-in bar shift fork one end is shaped with ball stud and ball stud is placed in notch, the described main shaft draw-in bar shift fork other end is shaped with opening U-type groove, two ears of described opening U-type groove are pressed in the bearing pin two ends being located at main shaft system upper end and realize the clamping of handle of a knife or unclamp.
Wherein, tool changing and grab in B face II axis hole that the forward flange of cutter mechanism and rear flange be arranged on main spindle box body respectively and in the axis hole of A face II, described tool changing and grab cutter mechanism and be provided with the bearing block be arranged on described main spindle box body D face, the ball bearing supporting hollow splined shaft is equipped with in forward flange and bearing saddle bore, described hollow splined shaft lower end is fixedly connected with tool changing pawl casing, driving shaft is set with in described tool changing pawl casing central through hole, described driving shaft is placed in hollow splined shaft endoporus, described driving shaft one end is shaped with flat hole, described hollow splined shaft is set with spline housing, in the middle part of described spline housing, large round platform is circumferentially shaped with eight equally distributed circular holes, four bearing followers II are had in the circular hole at 90 degree, one side four intervals, the circular hole at 90 degree, another side four intervals also has four bearing followers II, the bearing follower II on described two sides engages with two circular order faces, place of described plane cam and contacts, described plane cam is with stirring bearing follower II during cam axle and driving hollow splined shaft and the tool changing pawl casing that is fixedly connected with it to revolve turnback by spline housing, described hollow splined shaft middle and upper part is connected with stop collar, described stop collar is shaped with circumferential groove, the bearing follower IV be fixedly connected with overhead cam shift fork one end embeds in circumferential groove, and described end face cylindrical cam stretches pull-up motion under driving hollow splined shaft and tool changing pawl casing affixed with it by the bearing follower IV of overhead cam shift fork end during cam axle, described hollow splined shaft internal sleeve is equipped with the drive link be fixedly connected with described gear shaft, described drive link lower end is shaped with in the flat flat hole of inserting described driving shaft one end of cone, described driving shaft other end symmetry is shaped with two flanges and is supported on support body, described flange contacts with the main tool changing pawl one end boss I be arranged symmetrically on support body respectively, main tool changing pawl is shaped with endoporus I, the other end is shaped with the arc concave station I matched with handle of a knife, main tool changing pawl endoporus I is hinged by fulcrum pin I and tool changing pawl casing, define with main tool changing pawl endoporus fulcrum pin I as fulcrum, one end boss I is drive end, other end arc concave station I is the lever of Partner, in the middle part of main tool changing pawl, boss II contacts with boss III in the middle part of secondary tool changing pawl, secondary tool changing pawl is shaped with endoporus II, hinged by fulcrum pin II and tool changing pawl casing, the secondary tool changing pawl other end is shaped with the arc concave station II matched with handle of a knife, define with secondary tool changing pawl endoporus fulcrum pin II as fulcrum, in the middle part of secondary tool changing pawl, boss II is drive end, other end arc concave station II is the lever of Partner, when described drive link bores the flat hole of flat insertion described driving shaft one end, two flanges pressures of the described driving shaft other end dial main tool changing pawl one end boss I, in the middle part of main tool changing pawl, boss II pushes up and dials boss III in the middle part of secondary tool changing pawl, forms the action that main tool changing pawl and secondary tool changing pawl open simultaneously, Compress Spring when described driving shaft and drive link depart between main tool changing pawl and secondary tool changing pawl one end discharges and forces main tool changing pawl and secondary tool changing pawl to shrink simultaneously, and arc concave station I and the arc concave station II of main tool changing pawl and secondary tool changing pawl block handle of a knife simultaneously.
Wherein, described main shaft system comprises sleeve, main shaft, forward flange, rear flange, angular contact ball bearing, outer separator, inner spacing collar, pull bar, adapter sleeve, die springs, steel ball, locking nut and straight pin, described sleeve is fixedly mounted in B face I axis hole of main spindle box body, and described main shaft passes through forward flange, angular contact ball bearing, outer separator, inner spacing collar, rear flange, locking nut is arranged in described hub internal bore, described main shaft lower end is shaped with the taper hole coordinated with handle of a knife, also be shaped with hole J, hole K, main shaft upper end is shaped with waist type groove, pull bar is provided with in described spindle hole, described pull bar lower end is shaped with endoporus, the blind rivet of described handle of a knife is located in the endoporus of pull bar lower end, the endoporus circumference of described pull bar lower end is shaped with three non-through spherical counter bore, described spherical counter bore is built with steel ball, described handle of a knife is positioned at the conical surface that blind rivet end embraced by spindle hole K place steel ball, handle of a knife is positioned at spindle hole J place's steel ball and the conical surface departs from, described pull bar upper end is shaped with external screw thread, and screw with the female adapter sleeve of lower end system, described adapter sleeve upper end is shaped with the pin-and-hole through with waist type groove, described straight pin is placed in waist type groove, described straight pin two ends are driven pull bar slide downward by the extruding of opening U-type groove two ear of main shaft draw-in bar shift fork end, on described pull bar, cover has die springs, die springs lower surface contacts with the inner hole of spindle face of shoulder and maintains static, die springs upper surface contacts with adapter sleeve lower surface, described main motor output shaft is connected with main shaft.
Wherein, described camshaft system comprises end face cylindrical cam, camshaft, plane cam and auxiliary-motor, described camshaft lower end is arranged in III axis hole in main spindle box body B face by bearing block, camshaft upper end is sleeved on and is placed in the III axis hole inner bearing hole in main spindle box body A face, described auxiliary-motor output shaft is connected with the upper end of camshaft by shaft coupling, in the middle part of camshaft, cylindrical be set with end face cylindrical cam and plane cam and be provided with spacer between the two, the sense switch that the Bracket for Inspection being fixed on V motor cabinet side is provided with detects the detection ring position be sleeved on shaft coupling, the cross section curve groove of described end face cylindrical cam is embedded with the bearing follower I be fixed on sector gear, described sector gear and tool changing and grab the opening and closing action of the gear shaft conjugate control cutter pawl on cutter mechanism, the circular order groove I of described end face cylindrical cam is embedded with the bearing follower III be connected with overhead cam shift fork, controls tool changing and stretch pull-up action under grabbing cutter mechanism by leverage, the circular order groove II of described end face cylindrical cam is embedded with the bearing follower V being positioned at shift fork connection rod set one end, controls by the leverage of shift fork connecting rod and main shaft draw-in bar shift fork the action that main shaft system unloads handle of a knife and tension handle of a knife, in the middle part of circular order face on described plane cam and described spline housing, the hollow splined shaft of bearing follower II conjugate control on great circle two sides and tool changing pawl casing affixed with it revolve turnback action.
The present invention compared with prior art ingenious utilization is arranged on cam structure in main spindle box and hollow spline shaft structure, makes headstock structure compact, and cutter-exchange mechanism is reliable at a high speed, reduces labor strength, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is stereochemical structure decomposing schematic representation of the present invention;
Fig. 2 is main spindle box body structural representation one of the present invention;
Fig. 3 is the structural representation two of main spindle box body of the present invention;
Fig. 4 is cam of the present invention and connected shifting fork structure schematic diagram;
Fig. 5 be main tool changing pawl of the present invention and secondary tool changing pawl clamping Knife handle structure time schematic diagram;
Fig. 6 is the present invention's structural representation when main tool changing pawl and secondary tool changing pawl clamping handle of a knife when removing tool changing pawl casing;
Fig. 7 is the present invention's structural representation when main tool changing pawl and secondary tool changing pawl unclamp handle of a knife when removing tool changing pawl casing;
Fig. 8 is main tool changing pawl structural representation of the present invention;
Fig. 9 is secondary tool changing pawl structural representation of the present invention;
Figure 10 is main tool changing pawl of the present invention and secondary tool changing pawl top view when unclamping handle of a knife;
Figure 11 is the A-A sectional view of Figure 10;
Figure 12 is of the present invention top view when grabbing cutter mechanism clamping handle of a knife;
Figure 13 is the C-C sectional view of Figure 12;
Figure 14 is camshaft architecture schematic diagram of the present invention;
Figure 15 is the F-F sectional view of Figure 14;
Structural representation when Figure 16 is main shaft of the present invention clamping handle of a knife;
Figure 17 is main shaft of the present invention withdrawing structural representation when stretching out handle of a knife;
Figure 18 is end face cylindrical cam structural representation of the present invention;
Figure 19 is main axle structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-19, a kind of embodiment of the present invention is described.
For the high speed cutter-exchange mechanism at small-sized Zuan Xi center, there is main spindle box body 1, as Figure 2-3, the A face of described main spindle box body 1 is shaped with and runs through I, II, III axis hole in B face and IV axis hole in non-through B face, its C face is shaped with VI axis hole, and D face is shaped with V and VII axis hole, as shown in Figure 1, in described I axis hole, main shaft system 4 is installed, in described III axis hole, camshaft system 3 is installed, the camshaft 16 of described camshaft system 3 is set with end face cylindrical cam 15 and plane cam 21 and end face cylindrical cam 15 is positioned at above plane cam 21, described end face cylindrical cam 15 is shaped with cross section curve groove 7, circular order groove I 8 and circular order groove II 12, and described plane cam 21 is shaped with circular order face 86, tool changing is installed in described II axis hole and grabs cutter mechanism 2, leverage 14 one end that driven end and the ratio of drive end displacement are about 2.75:1 is fixedly connected with described V axis hole, leverage 14 middle-end is connected with end face cylindrical cam 15 circular order groove I 8, the other end is connected with tool changing and the stop collar 68 of grabbing on cutter mechanism 2 and realizes when end face cylindrical cam 15 rotates tool changing and grab cutter mechanism stretching pull-up 2 times, the composite lever mechanism 17 that driven end and the ratio of drive end displacement are about 1:2 is fixedly connected with described VI axis hole, composite lever mechanism 17 one end is connected with circular order groove II 12, the other end is pressed in bearing pin 36 two ends on described main shaft system 4 and realizes the clamping of handle of a knife 74 or unclamp, described circular order face 86 to be connected with grasping mechanism 2 by bearing follower II 57 and tool changing and to realize tool changing when plane cam 21 rotates and grab 180 ° of cutter mechanism 2 rotating, described IV axis hole internal fixtion fan gear 6, the groove internal fixtion that described fan gear 6 end face is shaped with has the bearing follower I 51 be embedded in cross section curve groove 7, described end face cylindrical cam 15 rotarily drives fan gear 6 and swings, and described fan gear 6 engages with the gear shaft 67 being placed in tool changing and grabbing cutter mechanism 2 upper end the opening and closing action realizing cutter pawl simultaneously.
As shown in Figure 1 and Figure 4, described leverage 14 comprises overhead cam shift fork 10, described V axis hole internal fixtion has bearing pin 59, overhead cam shift fork 10 one end with bearing pin 59 for fulcrum is fixed in V axis hole, the middle bearing follower III 44 with embedding in circular order groove I 8 is connected, the other end is provided with the bearing follower IV 13 be connected with tool changing and the circumferential groove 24 on grabbing on cutter mechanism 2 stop collar 68, controls tool changing and grab cutter mechanism to stretch pull-up action 2 times by leverage, described composite lever mechanism 17 comprises shift fork connecting rod 5 and main shaft draw-in bar shift fork 9, fastening with the nut sleeve 40 be placed in VI axis hole by bearing pin 41 one end in the middle part of described shift fork connecting rod 5, described shift fork connecting rod 5 one end is provided with the bearing follower V 33 embedded in circular order groove II 12, shift fork connecting rod 5 other end is shaped with notch 58, described main shaft draw-in bar shift fork 9 with joint pin 55 for fulcrum is fixed in VII axis hole, described main shaft draw-in bar shift fork 9 one end is shaped with ball stud 54 and ball stud 54 is placed in notch 58, described main shaft draw-in bar shift fork 9 other end is shaped with opening U-type groove 23, two ears of described opening U-type groove 23 are pressed in bearing pin 36 two ends being located at main shaft system 4 upper end and realize the clamping of handle of a knife 74 or unclamp.
As shown in Fig. 5-Figure 13, tool changing and grab in B face II axis hole that the forward flange 20 of cutter mechanism 2 and rear flange 64 be arranged on main spindle box body 1 respectively and in the axis hole of A face II, described tool changing and grab cutter mechanism 2 and be provided with the bearing block 70 be arranged on described main spindle box body 1D face, the ball bearing 59 supporting hollow splined shaft 71 is equipped with in forward flange 20 and bearing block 70 hole, described hollow splined shaft 71 lower end is fixedly connected with tool changing pawl casing 63, driving shaft 60 is set with in described tool changing pawl casing 63 central through hole, described driving shaft 60 is placed in hollow splined shaft 71 endoporus, described driving shaft 60 one end is shaped with flat hole 85, described hollow splined shaft 71 is set with spline housing 69, in the middle part of described spline housing 69, large round platform is circumferentially shaped with eight equally distributed circular holes, four bearing followers II 57 are had in the circular hole at 90 degree, one side four intervals, the circular hole at 90 degree, another side four intervals also has four bearing followers II 57, the bearing follower II 57 on described two sides engages with two circular order faces, place 86 of described plane cam 21 and contacts, stir bearing follower II 57 when described plane cam 21 rotates with camshaft 16 and drive hollow splined shaft 71 and the tool changing pawl casing 63 that is fixedly connected with it to revolve turnback by spline housing 69, described hollow splined shaft 71 middle and upper part is connected with stop collar 68, described stop collar 68 is shaped with circumferential groove 24, the bearing follower IV 13 be fixedly connected with overhead cam shift fork 10 one end embeds in circumferential groove 24, drives hollow splined shaft 71 and tool changing pawl casing affixed with it to stretch pull-up motion for 63 times when described end face cylindrical cam 15 rotates with camshaft 16 by the bearing follower IV 13 of overhead cam shift fork 10 end, described hollow splined shaft 71 internal sleeve is equipped with the drive link 61 be fixedly connected with described gear shaft 67, described drive link 61 lower end is shaped with in the flat flat hole 85 of inserting described driving shaft 60 one end of cone, described driving shaft 60 other end symmetry is shaped with two flanges 25 and is supported on support body 87, described flange 25 contacts with the main tool changing pawl 66 one end boss I 72 be arranged symmetrically on support body 87 respectively, main tool changing pawl 66 is shaped with endoporus I 73, the other end is shaped with the arc concave station I 26 matched with handle of a knife 74, main tool changing pawl 66 endoporus I 73 is hinged by fulcrum pin I 62 and tool changing pawl casing 63, define with main tool changing pawl 66 endoporus fulcrum pin I 62 as fulcrum, one end boss I 72 is drive end, other end arc concave station I 26 is the lever of Partner, in the middle part of main tool changing pawl 66, boss II 76 contacts with boss III 77 in the middle part of secondary tool changing pawl 65, secondary tool changing pawl 65 is shaped with endoporus II 78, hinged by fulcrum pin II 27 and tool changing pawl casing 63, secondary tool changing pawl 65 other end is shaped with the arc concave station II 28 matched with handle of a knife 74, define with secondary tool changing pawl 65 endoporus fulcrum pin II 27 as fulcrum, in the middle part of secondary tool changing pawl 65, boss II 76 is drive end, other end arc concave station II 28 is the lever of Partner, when described drive link 61 bores the flat hole 85 of flat insertion described driving shaft 60 one end, two flanges 25 of described driving shaft 60 other end are pressed and are dialled main tool changing pawl 66 one end boss I 72, in the middle part of main tool changing pawl 66, boss II 76 pushes up and dials boss III 77 in the middle part of secondary tool changing pawl 65, forms the action that main tool changing pawl 66 and secondary tool changing pawl 65 open simultaneously, Compress Spring 73 when described driving shaft 60 and drive link 61 depart between main tool changing pawl 66 and secondary tool changing pawl 65 one end discharges and forces main tool changing pawl 66 and secondary tool changing pawl 65 to shrink simultaneously, and arc concave station I 26 and the arc concave station II 28 of main tool changing pawl 66 and secondary tool changing pawl 65 block handle of a knife 74 simultaneously.
As shown in Figure 16-17 and Figure 19, described main shaft system 4 comprises sleeve 50, main shaft 49, forward flange 48, rear flange 47, angular contact ball bearing 40, outer separator 46, inner spacing collar 45, pull bar 43, adapter sleeve 42, die springs 82, steel ball 39, locking nut 38 and straight pin 36, described sleeve 50 is fixedly mounted in B face I axis hole of main spindle box body 1, described main shaft 49 is by forward flange 48, angular contact ball bearing 40, outer separator 46, inner spacing collar 45, rear flange 47, locking nut 38 is arranged in described sleeve 50 endoporus, described main shaft 49 lower end is shaped with the taper hole 83 coordinated with handle of a knife 74, also be shaped with hole J, hole K, main shaft 49 upper end is shaped with waist type groove 84, pull bar 43 is provided with in described main shaft 49 hole, described pull bar 43 lower end is shaped with endoporus 30, the blind rivet 75 of described handle of a knife 74 is located in the endoporus 30 of pull bar 43 lower end, endoporus 30 circumference of described pull bar 43 lower end is shaped with three non-through spherical counter bore 35, described spherical counter bore 35 is built with steel ball 39, described handle of a knife 74 is positioned at the conical surface 34 that blind rivet 75 end embraced by spindle hole K place steel ball 39, handle of a knife 74 is positioned at spindle hole J place steel ball 39 and departs from the conical surface 34, it is high that this kind of main shaft tightening structure has positioning precision, compact conformation, fine finishining is had to the feature of sufficient intensity, described pull bar 43 upper end is shaped with external screw thread, and screw with the female adapter sleeve 42 of lower end system, described adapter sleeve 42 upper end is shaped with the pin-and-hole 32 through with waist type groove 84, described straight pin 36 is placed in waist type groove 84, described straight pin 36 two ends are driven pull bar 43 slide downward by the 23 liang of ear extruding of the opening U-type groove of main shaft draw-in bar shift fork 9 end, on described pull bar 43, cover has die springs 82, die springs 82 lower surface contacts with the main shaft 49 endoporus face of shoulder and maintains static, die springs 82 upper surface contacts with adapter sleeve 42 lower surface, mair motor 11 output shaft is connected with main shaft 49.
As shown in Figure 14-15 and Figure 18, described camshaft system 3 comprises end face cylindrical cam 15, camshaft 16, plane cam 21 and auxiliary-motor 52, described camshaft 16 lower end is arranged on by bearing block 19 in III axis hole in main spindle box body 1B face, camshaft 16 upper end is sleeved on and is placed in III axis hole inner bearing 31 hole in main spindle box body 1A face, described auxiliary-motor 52 output shaft is connected with the upper end of camshaft 16 by shaft coupling 29, in the middle part of camshaft 16, cylindrical is set with end face cylindrical cam 15 by flat key 79, plane cam 21 is set with by flat key 81, located by spacer 80 between end face cylindrical cam 15 and plane cam 21, the sense switch 37 that the Bracket for Inspection 53 being fixed on V motor cabinet 56 side is provided with detects detection ring 22 position be sleeved on shaft coupling 29, the cross section curve groove 7 of described end face cylindrical cam 15 is embedded with the bearing follower I 51 be fixed on sector gear 6, described sector gear 6 and tool changing and the opening and closing action of grabbing the gear shaft 67 conjugate control cutter pawl on cutter mechanism 2, the circular order groove I 8 of described end face cylindrical cam 15 is embedded with the bearing follower III 44 be connected with overhead cam shift fork 10, controls tool changing and grab cutter mechanism to stretch pull-up action 2 times by leverage, the circular order groove II 12 of described end face cylindrical cam 15 is embedded with the bearing follower V 33 being positioned at shift fork connection rod set 5 one end, controls by the leverage of shift fork connecting rod 5 and main shaft draw-in bar shift fork 9 action that main shaft system 4 unloads handle of a knife and tension handle of a knife, in the middle part of circular order face on described plane cam 21 86 and described spline housing 69, the hollow splined shaft of bearing follower II 57 conjugate control 71 on great circle two sides and tool changing pawl casing 63 affixed with it revolve turnback action.
The present invention and small-sized brill milling central integral formula tool magazine combine and form independent integers formula high speed tool changing main spindle box, and have compact dimensions, positioning precision is high, and tool changing is reliable feature rapidly.
The above is only better embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent application claims scope of the present invention change or modify, and are included within the scope of patent application claims of the present invention.
Claims (1)
1. for the high speed cutter-exchange mechanism at small-sized Zuan Xi center, there is main spindle box body (1), the A face of described main spindle box body (1) is shaped with and runs through I of B face, II, IV axis hole in III axis hole and non-through B face, its C face is shaped with VI axis hole, D face is shaped with V and VII axis hole, it is characterized in that: in described I axis hole, main shaft system (4) is installed, in described III axis hole, camshaft system (3) is installed, the camshaft (16) of described camshaft system (3) upper suit end face cylindrical cam (15) and plane cam (21) and end face cylindrical cam (15) is positioned at above plane cam (21), described end face cylindrical cam (15) is shaped with cross section curve groove (7), circular order groove I (8) and circular order groove II (12), described plane cam (21) is shaped with circular order face (86), tool changing is installed in described II axis hole and grabs cutter mechanism (2), leverage (14) one end and described V axis hole are that axle is hinged, leverage (14) middle-end embeds with the circular order groove I (8) of end face cylindrical cam (15) and is connected, the other end is connected with tool changing and the stop collar (68) of grabbing on cutter mechanism (2) and realizes when end face cylindrical cam (15) rotates tool changing and stretch pull-up under grabbing cutter mechanism (2), composite lever mechanism (17) and described VI axis hole are that axle is hinged, composite lever mechanism (17) one end embeds with circular order groove II (12) and is connected, the other end is pressed in bearing pin (36) two ends on described main shaft system (4) and realizes the clamping of handle of a knife (74) or unclamp, described circular order face (86) to be connected with grasping mechanism (2) by bearing follower II (57) and tool changing and to realize tool changing when plane cam (21) rotates and grab 180 degree of cutter mechanism (2) rotating, described IV axis hole internal fixtion fan gear (6), the groove internal fixtion that described fan gear (6) end face is shaped with has the bearing follower I (51) be embedded in cross section curve groove (7), described end face cylindrical cam (15) rotarily drives fan gear (6) and swings, and described fan gear (6) engages with the gear shaft (67) being placed in tool changing and grabbing cutter mechanism (2) upper end the opening and closing action realizing cutter pawl simultaneously, described leverage (14) comprises overhead cam shift fork (10), described V axis hole internal fixtion has ball bearing (59), overhead cam shift fork (10) one end with ball bearing (59) in fulcrum is fixed on described V axis hole, the middle bearing follower III (44) with embedding in circular order groove I (8) is connected, the other end is provided with the bearing follower IV (13) be connected with tool changing and the circumferential groove (24) on grabbing on cutter mechanism (2) stop collar (68), control tool changing by leverage and stretch pull-up action under grabbing cutter mechanism (2), described composite lever mechanism (17) comprises shift fork connecting rod (5) and main shaft draw-in bar shift fork (9), described shift fork connecting rod (5) middle part is hinged fastening with the nut sleeve be placed in described VI axis hole by bearing pin (41), described shift fork connecting rod (5) one end is provided with the bearing follower V (33) embedded in circular order groove II (12), shift fork connecting rod (5) other end is shaped with notch (58), described main shaft draw-in bar shift fork (9) with joint pin (55) in fulcrum is fixed on described VII axis hole, described main shaft draw-in bar shift fork (9) one end is shaped with ball stud (54) and ball stud (54) is placed in notch (58), described main shaft draw-in bar shift fork (9) other end is shaped with opening U-type groove (23), two ears of described opening U-type groove (23) are pressed in bearing pin (36) two ends being located at main shaft system (4) upper end and realize the clamping of handle of a knife (74) or unclamp, tool changing and grab in B face II axis hole that the forward flange (20) of cutter mechanism (2) and rear flange (64) be arranged on main spindle box body (1) respectively and in the axis hole of A face II, described tool changing and grab cutter mechanism (2) and be provided with the bearing block (70) be arranged on described main spindle box body (1) D face, the ball bearing (59) supporting hollow splined shaft (71) is equipped with in forward flange (20) and bearing block (70) hole, described hollow splined shaft (71) lower end is fixedly connected with tool changing pawl casing (63), driving shaft (60) is set with in described tool changing pawl casing (63) central through hole, described driving shaft (60) is placed in hollow splined shaft (71) endoporus, described driving shaft (60) one end is shaped with flat hole (85), described hollow splined shaft (71) is set with spline housing (69), the large round platform in described spline housing (69) middle part is circumferentially shaped with eight equally distributed circular holes, four bearing followers II (57) are had in the circular hole at 90 degree, one side four intervals, the circular hole at 90 degree, another side four intervals also has four bearing followers II (57), the bearing follower II (57) on described two sides engages with two circular order faces, place (86) of described plane cam (21) and contacts, stir bearing follower II (57) when described plane cam (21) rotates with camshaft (16) and drive hollow splined shaft (71) and the tool changing pawl casing (63) that is fixedly connected with it to revolve turnback by spline housing (69), described hollow splined shaft (71) middle and upper part is connected with stop collar (68), described stop collar (68) is shaped with circumferential groove (24), the bearing follower IV (13) be fixedly connected with overhead cam shift fork (10) one end embeds in circumferential groove (24), stretches pull-up motion when described end face cylindrical cam (15) is rotated with camshaft (16) by the bearing follower IV (13) of overhead cam shift fork (10) end under driving hollow splined shaft (71) and tool changing pawl casing (63) affixed with it, described hollow splined shaft (71) internal sleeve is equipped with the drive link (61) be fixedly connected with described gear shaft (67), described drive link (61) lower end is shaped with cone and flatly inserts in the flat hole (85) of described driving shaft (60) one end, described driving shaft (60) other end symmetry is shaped with two flanges (25) and is supported on support body (87), described flange (25) contacts with main tool changing pawl (66) one end boss I (72) be arranged symmetrically on support body (87) respectively, main tool changing pawl (66) is shaped with endoporus I, the other end is shaped with the arc concave station I (26) matched with handle of a knife (74), main tool changing pawl (66) endoporus I is hinged by fulcrum pin I (62) and tool changing pawl casing (63), define with main tool changing pawl (66) endoporus fulcrum pin I (62) as fulcrum, one end boss I (72) is drive end, the lever that other end arc concave station I (26) is Partner, main tool changing pawl (66) middle part boss II (76) contacts with secondary tool changing pawl (65) middle part boss III (77), secondary tool changing pawl (65) is shaped with endoporus II (78), hinged by fulcrum pin II (27) and tool changing pawl casing (63), secondary tool changing pawl (65) other end is shaped with the arc concave station II (28) matched with handle of a knife (74), define with secondary tool changing pawl (65) endoporus fulcrum pin II (27) as fulcrum, secondary tool changing pawl (65) middle part boss II (76) is drive end, the lever that other end arc concave station II (28) is Partner, when described drive link (61) bores flat hole (85) of the described driving shaft of flat insertion (60) one end, two flanges (25) pressures of described driving shaft (60) other end dial main tool changing pawl (66) one end boss I (72), main tool changing pawl (66) middle part boss II (76) pushes up dials secondary tool changing pawl (65) middle part boss III (77), forms the action that main tool changing pawl (66) and secondary tool changing pawl (65) open simultaneously, described driving shaft (60) and drive link (61) when departing from the Compress Spring (73) be positioned between main tool changing pawl (66) and secondary tool changing pawl (65) one end discharge and force main tool changing pawl (66) and secondary tool changing pawl (65) to shrink simultaneously, arc concave station I (26) and the arc concave station II (28) of main tool changing pawl (66) and secondary tool changing pawl (65) block handle of a knife (74) simultaneously, described main shaft system (4) comprises sleeve (50), main shaft (49), forward flange (48), rear flange (47), angular contact ball bearing (40), outer separator (46), inner spacing collar (45), pull bar (43), adapter sleeve (42), die springs (82), steel ball (39), locking nut (38) and bearing pin (36), described sleeve (50) is fixedly mounted in B face I axis hole of main spindle box body (1), described main shaft (49) is by forward flange (48), angular contact ball bearing (40), outer separator (46), inner spacing collar (45), rear flange (47), locking nut (38) is arranged in described sleeve (50) endoporus, described main shaft (49) lower end is shaped with the taper hole (83) coordinated with handle of a knife (74), also be shaped with hole J, hole K, main shaft (49) upper end is shaped with waist type groove (84), pull bar (43) is provided with in described main shaft (49) hole, described pull bar (43) lower end is shaped with endoporus (30), the blind rivet (75) of described handle of a knife (74) is located in the endoporus (30) of pull bar (43) lower end, endoporus (30) circumference of described pull bar (43) lower end is shaped with three non-through spherical counter bore (35), described spherical counter bore (35) is built with steel ball (39), described handle of a knife (74) is positioned at the conical surface (34) that blind rivet (75) end is embraced at spindle hole K place steel ball (39), handle of a knife (74) is positioned at spindle hole J place steel ball (39) and departs from the conical surface (34), described pull bar (43) upper end is shaped with external screw thread, and screw with the female adapter sleeve of lower end system (42), described adapter sleeve (42) upper end is shaped with the pin-and-hole (32) through with waist type groove (84), described bearing pin (36) is placed in waist type groove (84), described bearing pin (36) two ends are driven pull bar (43) slide downward by the extruding of opening U-type groove (23) two ear of main shaft draw-in bar shift fork (9) end, the upper cover of described pull bar (43) has die springs (82), die springs (82) lower surface contacts with main shaft (49) the endoporus face of shoulder and maintains static, die springs (82) upper surface contacts with adapter sleeve (42) lower surface, mair motor (11) output shaft is connected with main shaft (49), described camshaft system (3) comprises end face cylindrical cam (15), camshaft (16), plane cam (21) and auxiliary-motor (52), described camshaft (16) lower end is arranged in III axis hole in main spindle box body (1) B face by bearing block (19), camshaft (16) upper end is sleeved on and is placed in III axis hole inner bearing (31) hole in main spindle box body (1) A face, described auxiliary-motor (52) output shaft is connected with the upper end of camshaft (16) by shaft coupling (29), camshaft (16) middle part cylindrical is set with end face cylindrical cam (15) and plane cam (21) and is provided with spacer (80) between the two, the sense switch (37) that the Bracket for Inspection (53) being fixed on V motor cabinet (56) side is provided with detects detection ring (22) position be sleeved on shaft coupling (29), the cross section curve groove (7) of described end face cylindrical cam (15) is embedded with the bearing follower I (51) be fixed on sector gear (6), described sector gear (6) and tool changing and the opening and closing action of grabbing gear shaft (67) the conjugate control cutter pawl on cutter mechanism (2), the circular order groove I (8) of described end face cylindrical cam (15) is embedded with the bearing follower III (44) be connected with overhead cam shift fork (10), controls tool changing and stretch pull-up action under grabbing cutter mechanism (2) by leverage, the circular order groove II (12) of described end face cylindrical cam (15) is embedded with the bearing follower V (33) being positioned at shift fork connection rod set (5) one end, controls by the leverage of shift fork connecting rod (5) and main shaft draw-in bar shift fork (9) action that main shaft system (4) unloads handle of a knife and tension handle of a knife, the hollow splined shaft of bearing follower II (57) conjugate control (71) and the tool changing pawl casing (63) affixed with it on the circular order face (86) on described plane cam (21) and great circle two sides, described spline housing (69) middle part revolve turnback action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210214608.5A CN102717290B (en) | 2012-06-27 | 2012-06-27 | High-speed reblading mechanism for small drilling and milling center |
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| CN201210214608.5A CN102717290B (en) | 2012-06-27 | 2012-06-27 | High-speed reblading mechanism for small drilling and milling center |
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| CN102717290A CN102717290A (en) | 2012-10-10 |
| CN102717290B true CN102717290B (en) | 2015-07-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6113498B2 (en) * | 2012-12-27 | 2017-04-12 | 東芝機械株式会社 | Automatic tool change system for shrink-fit holders |
| CN104070189B (en) * | 2014-06-24 | 2016-10-12 | 杭州贝克机械有限公司 | Dead-beat static pressure servo power main tapping and method of work |
| DE102015112079A1 (en) * | 2015-07-24 | 2017-01-26 | Franz Haimer Maschinenbau Kg | Screw-in tool and tool holder with divided support area |
| CN105234501A (en) * | 2015-11-03 | 2016-01-13 | 中国航空工业集团公司北京航空精密机械研究所 | Gear lapping method of face gear |
| CN105965070B (en) * | 2016-07-08 | 2018-06-19 | 环球工业机械（东莞）有限公司 | A kind of lathe with rotary moving guide case |
| CN106078304A (en) * | 2016-08-19 | 2016-11-09 | 宁波金凯机床股份有限公司 | A kind of lathe tool changing device |
| CN110666557A (en) * | 2019-09-30 | 2020-01-10 | 北京星航机电装备有限公司 | Small-machining-space inner cavity feature machining method based on three-axis machine tool |
| CN111976028A (en) * | 2020-08-20 | 2020-11-24 | 江西衡源智能装备有限公司 | Multi-cutter synchronous taking and replacing device, cutter magazine device and multi-spindle machining machine tool |
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| US5997455A (en) * | 1997-07-23 | 1999-12-07 | Brother Kogyo Kabushiki Kaisha | Tool clamp mechanism with shortened spindle |
| JP5082591B2 (en) * | 2007-05-31 | 2012-11-28 | ブラザー工業株式会社 | Tool changer |
| JP5672881B2 (en) * | 2010-09-14 | 2015-02-18 | ブラザー工業株式会社 | Machine Tools |
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| US5752905A (en) * | 1996-07-02 | 1998-05-19 | National Science Council | Automatic tool-changing mechanism |
| CN202877985U (en) * | 2012-06-27 | 2013-04-17 | 宝鸡西力精密机械有限公司 | High-speed tool changing mechanism used for small-scale drilling milling center |
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