CN109249226A - A kind of CNC milling machine rotary table - Google Patents
A kind of CNC milling machine rotary table Download PDFInfo
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- CN109249226A CN109249226A CN201811326542.2A CN201811326542A CN109249226A CN 109249226 A CN109249226 A CN 109249226A CN 201811326542 A CN201811326542 A CN 201811326542A CN 109249226 A CN109249226 A CN 109249226A
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- platform
- shaft
- bearing
- gear
- connecting rod
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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
- B23Q1/64—Movable or adjustable work or tool supports characterised by the purpose of the movement
- B23Q1/66—Worktables interchangeably movable into operating positions
-
- 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
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
Abstract
A kind of CNC milling machine rotary table disclosed by the invention, belongs to machine tooling equipment technical field, including rotating mechanism, clamping mechanism, driving mechanism, pedestal.Rotating mechanism is translatable by slide realizes the intermittent rotary of platform, clamping mechanism is for stepping up rotating platform and guaranteeing to process rigidity, driving mechanism is for driving rotating mechanism straight reciprocating motion and providing clamping force for clamping mechanism, and pedestal is for carrying rotating mechanism, clamping mechanism and driving mechanism.When the present invention works for numerical control mill, the problem of disassembly workpiece is time-consuming and laborious and disassembly and processing must be carried out independently, devise CNC milling machine rotary table, have the characteristics that compact structure, at low cost, single power source, positioning is rapid, disassembly is convenient and dismounts carry out synchronous with processing, mating the flow work, workpiece is dismounted using mechanical arm, significantly improves processing efficiency.
Description
Technical field
The present invention relates to a kind of machine tooling platforms, and in particular to a kind of CNC milling machine rotary table belongs to lathe
Technical field of processing equipment.
Background technique
It is very extensive in the use of machine tooling technical field, rotating platform.Rotary operating platform is to pass through traction gear
Rotary work is carried out to draw the gear of platform themselves bottom, it can quickly realize the rotation of workpiece, in order to machinery
Processing.But if wanting that realizing that workpiece disassembly is convenient and processing is synchronous with dismounting carries out, usual rotating platform radial dimension is larger, and
To guarantee rigidity, rotating platform is unfavorable for save the cost usually than cumbersome, is also unfavorable for saving space resources.
Summary of the invention
When for mating the flow work, workpiece disassembly is convenient, positioning rapidly and dismounting progress synchronous with processing, significantly improve
Processing efficiency, the present invention devise a kind of CNC milling machine rotary table.
A kind of CNC milling machine rotary table provided by the invention, including rotating mechanism 1, clamping mechanism 2, driving mechanism 3,
Pedestal 4.
In above-mentioned CNC milling machine rotary table, the rotating mechanism 1 includes slide 11, synchronous belt mechanism 12, planetary gear
It is 13, platform B14, a cabinet frame 15, platform A16;The synchronous belt mechanism 12 includes synchronous belt 121, synchronizing wheel A137, synchronizing wheel
B122, connecting shaft 123, deep groove ball bearing 124, unilateral bearing 125, shaft end gland 126, driving gear 127;The planetary gear train
13 include output gear A131, output shaft A132, intermediate gear A133, jackshaft A134, fixed gear 135, fixing axle 136,
Synchronizing wheel A137, right baffle-plate 138, jackshaft B139, intermediate gear B1310, output shaft B1311, output gear B1312, right gear
Plate 1313;One cabinet frame 15 includes cross bar 151, support shaft A152, support fixing axle 153, support shaft B154.
In above-mentioned CNC milling machine rotary table, the clamping mechanism 2 include hinge seat A22, hinge seat B21, torsional spring 23,
Short connecting rod A24, short connecting rod B25, force rod 26, long connecting rod A27, long connecting rod B28, pressing plate 29.
In above-mentioned CNC milling machine rotary table, the driving mechanism 3 includes spring base 31, compressed spring A32, compression bullet
Spring B33, spring seat end cover 34, push-pull rod 35, power block 36, transition plates 37, sliding block 38, ball-screw 39, reduction gearbox 310, step are led
Into motor 311, line slide rail 312.
In above-mentioned CNC milling machine rotary table, the pedestal 4 include lower position block A41, buffering adhesive 42, right sliding block A43,
Right slide block B 44, rack gear 45, right guide rail 46, bottom plate 47, upper limit position block 48, left rail 49, left slider B410, left slider A411, under
Limited block B412, positioning support plate 413, positioning plate 414.
In above-mentioned CNC milling machine rotary table, the synchronous belt mechanism 12 is connected by deep groove ball bearing 124 and slide 11
It connects, 124 outer ring of deep groove ball bearing carries out axial restraint by 11 hole shoulder of slide and internal circlip, in deep groove ball bearing 124
Circle carries out axial restraint, 123 one end of connecting shaft and 125 inner ring of unilateral bearing with check ring by 123 shaft shoulder of connecting shaft and axis
It is attached by key, 125 inner ring of unilateral bearing carries out axial restraint by 123 shaft shoulder of connecting shaft and shaft end gland 126, unidirectionally
125 outer ring of bearing is attached with driving gear 127 by key, and 125 outer ring of unilateral bearing passes through through driving 127 hole shoulder of gear
Axial restraint is carried out with internal circlip, 123 other end of connecting shaft is connected by key with synchronizing wheel B122, and synchronizing wheel B122 is logical
It crosses 123 shaft shoulder of connecting shaft and shaft end gland carries out axial restraint, synchronizing wheel B122 and synchronizing wheel A137 is transmitted by synchronous belt 121
Movement and torque.
In above-mentioned CNC milling machine rotary table, the planetary gear train 13 is interference fitted by fixing axle 136 and slide 11
And fixed by cylindrical pin with internal thread, fixing axle 136 is connected by key with fixed gear 135, and fixed gear 135 passes through fixing axle
136 shaft shoulders and sleeve axial restraint, fixing axle 136 are connect with right baffle-plate 138 by bearing, and bearing inner race passes through fixing axle 136
The shaft shoulder and axis check ring axial restraint, bearing outer ring pass through 138 hole shoulder of right baffle-plate and internal circlip axial restraint, Gu
Dead axle 136 is connect with right shell body 1313 by bearing, and bearing inner race is by sleeve and axis check ring axial restraint, outside bearing
Circle is engaged by 1313 hole shoulder of right shell body and internal circlip axial restraint, fixed gear 135 with intermediate gear B1310, in
Between gear B1310 and jackshaft B139 be connected by key, intermediate gear B1310 is axially solid by the jackshaft B139 shaft shoulder and sleeve
Fixed, jackshaft B139 is connect with right baffle-plate 138 by bearing, and bearing inner race passes through the jackshaft B139 shaft shoulder and axis check ring
Axial restraint, bearing outer ring pass through 138 hole shoulder of right baffle-plate and internal circlip axial restraint, jackshaft B139 and right shell body
1313 are connected by bearing, and bearing inner race passes through right shell body by sleeve and axis check ring axial restraint, bearing outer ring
1313 hole shoulders and internal circlip axial restraint, intermediate gear B1310 are engaged with output gear B1312, output gear B1312
It is connected by key with output shaft B1311, output gear B1312 passes through the output shaft B1311 shaft shoulder and sleeve axial restraint, output shaft
B1311 is connect with right baffle-plate 138 by bearing, and bearing inner race is axially solid with check ring by the output shaft B1311 shaft shoulder and axis
Fixed, for bearing outer ring by 138 hole shoulder of right baffle-plate and internal circlip axial restraint, output shaft B1311 and right shell body 1313 are logical
Bearing connection is crossed, bearing inner race passes through 1313 hole shoulder of right shell body by sleeve and axis check ring axial restraint, bearing outer ring
With internal circlip axial restraint, output gear A131, output shaft A132, intermediate gear A133, jackshaft A134 assembly are closed
It is, synchronizing wheel A137 and right baffle-plate identical with output gear B1312, output shaft B1311, intermediate gear B1310, jackshaft B139
138 are connected by bolt.
In above-mentioned CNC milling machine rotary table, a cabinet frame 15 is matched by support fixing axle 153 with 11 interference of slide
It closes and is fixed by cylindrical pin with internal thread, support fixing axle 153 is connect by bearing with cross bar 151, and bearing inner race passes through branch
153 shaft shoulder of fixing axle and axis check ring axial restraint are supportted, bearing outer ring passes through 151 hole shoulder of cross bar and internal circlip
Axial restraint, support shaft B154 are connect with cross bar 151 by bearing, and bearing inner race passes through the support shaft B154 shaft shoulder and axis bullet
Spring retaining ring is fixed, and bearing outer ring passes through 151 hole shoulder of cross bar and internal circlip axial restraint, the assembly side of support shaft A152
Formula is identical with support shaft B154;Platform B14 and output shaft B1311 and support shaft B154 is interference fitted and passes through cylinder pin connection,
Platform A16 and output shaft A132 and support shaft A152 is interference fitted and passes through cylinder pin connection.
In above-mentioned CNC milling machine rotary table, the hinge seat A22, hinge seat B21 are arranged in parallel and consolidate with bottom plate 47
Even, hinge seat A22 is connect with short connecting rod A24 by revolute pair, and torsional spring 23, short connecting rod A24 and force rod 26 are installed by rotation vice division chief
It is connected with long connecting rod A27 by revolute pair, forms composite rotation pair, long connecting rod A27 is connect with pressing plate 29 by revolute pair, hinge
Seat B21, short connecting rod B25, long connecting rod B28 assembly method are identical with hinge seat A22, short connecting rod A24, long connecting rod A27, short connecting rod
B25 and short connecting rod A24, long connecting rod B28 and long connecting rod A27 are arranged in parallel.
In above-mentioned CNC milling machine rotary table, the driving mechanism 3 is connected and logical with bottom plate 47 by line slide rail 312
Spring base 31 and slide 11 is crossed to be connected, stepper motor 311 and reduction gearbox 310 are connected, 310 output shaft of reduction gearbox by shaft coupling with
Ball-screw 39 connects, and ball-screw 39 is connect by nut seat with sliding block 38, and sliding block 38 and transition plates 37 are connected, transition plates 37
It being connected with power block 36 is led, lead power block 36 and the interference fit of push-pull rod 35 and passes through cylinder pin connection, there is the shaft shoulder in 35 shaft end of push-pull rod,
Shaft shoulder two sides are connect with compressed spring A32, compressed spring B33 respectively, and spring base 31 passes through spring seat end cover 34 for compressed spring
A32, compressed spring B33 are fixed in the cavity, push-pull rod 35 and 34 clearance fit of spring seat end cover.
In above-mentioned CNC milling machine rotary table, the lower position block A41, rack gear 45, right guide rail 46, upper limit position block 48,
Left rail 49, lower position block B412, positioning support plate 413 are each attached on the bottom plate 47, lower position block A41, lower position block
B412, upper limit position block 48 are respectively and fixedly provided with buffering adhesive 42, right sliding block A43, right slide block B 44, right guide rail 46 and left slider A411, left cunning
Block B410, left rail 49 are arranged in parallel, and right sliding block A43, right slide block B 44, left slider A411, left slider B410 and slide 11 are solid
Even, positioning plate 414 and positioning support plate 413 are connected.
In above-mentioned CNC milling machine rotary table, rotating mechanism 1 is (separate along right guide rail 46, the positive sliding of left rail 49
2 direction of clamping mechanism) when, rotating mechanism 1 first maintains the original state smoothly, when platform A16 leaves clamping mechanism 2, drives gear
127 engage with rack gear 45, and driving gear 127 drives synchronizing wheel B122 to rotate under the action of unilateral bearing 125, synchronizing wheel B122
Drive synchronizing wheel A137 rotation, synchronizing wheel A137 and planetary gear train 13 are connected, planetary gear train 13 with moving platform B14, platform A16 around
When fixing axle 136 rotates 180 degree, platform B14 and platform A16 transposition, platform B14 and platform A16 around the rotation of fixing axle 136
It itself does not rotate and is translatable only with respect to ground;When rotating mechanism 1 is inversely slided along right guide rail 46, left rail 49, gear is driven
127 engage with rack gear 45, and driving gear 127 does not drive synchronizing wheel B122 to rotate under the action of unilateral bearing 125, rotating mechanism
1 keeps the state after platform B14 and platform A16 transposition to be smooth to initial position;There is T-type on platform B14 and platform A16
Slot, is easily installed fixture, the reserved groove of promising pressing plate 29 at platform B14 and platform A16 two corners, convenient for after stepping up and platform is same
Height avoids interfering with workpiece.
In above-mentioned CNC milling machine rotary table, clamping mechanism 2 belongs to parallelogram mechanism, guarantees that pressing plate 29 provides lead
Vertical direction clamping force;When torsional spring 23 guarantees 26 non-stress of force rod, short connecting rod A24, short connecting rod B25, long connecting rod A27, long connecting rod
B28 is perpendicular to bottom plate 47, i.e., pressing plate 29 is far from platform A16 or platform B14.
In above-mentioned CNC milling machine rotary table, driving mechanism 3 uses ball-screw 39, transmission small with friction loss
The advantages of high-efficient, long service life;When push-pull rod 35 pushes and pulls slide 11, compressed spring A32, compressed spring B33 eliminate push-and-pull
Bar 35 is to the starting impact of slide 11 and reversing impact;Power block 36 is led to act on before force rod 26, slide 11 and platform A16 or
Platform B14 stop motion, when leading power block 36 and acting on force rod 26, compressed spring B33 is that push-pull rod 35 provides axial displacement benefit
It repays.
In above-mentioned CNC milling machine rotary table, positioning plate 414 is used to position platform A16 or platform B14, to prevent from putting down
It collides when platform A16 or platform B14 sliding positioning plate 414, big chamfering is opened on positioning plate 414, to guarantee plateau levels side
To positioning, there is positioning convex platform on positioning plate 414.
CNC milling machine rotary table provided by the invention have compact-sized, at low cost, single power source, positioning rapidly,
The advantages of disassembly convenience and dismounting progress synchronous with processing, have the beneficial effect that: for workpiece when processing on platform B, another is flat
Platform A is far from main shaft, and workpiece dismounting is more convenient on platform A, and rotary table can be realized on platform B on work pieces process and platform A
Workpiece dismounting is synchronous to be carried out, and after the completion of work pieces process on platform B, can realize that platform A and platform B location are mutual by rotating platform
It changes, and in platform A and platform B location interchange process, platform A, B are translatable only with respect to ground, itself is not rotated, and so recycle
Operation, can save the time, especially when cooperate the flow work, using mechanical arm to the workpiece on the workbench of separate main shaft into
Row dismounting, is remarkably improved working efficiency.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is rotating mechanism schematic diagram of the invention.
Fig. 3 is the cross-sectional view of planetary gear train of the invention.
Fig. 4 is the cross-sectional view of a cabinet frame of the invention.
Fig. 5 is synchronous belt mechanism schematic diagram of the invention.
Fig. 6 is clamping mechanism schematic diagram of the invention.
Fig. 7 is driving mechanism schematic diagram of the invention.
Fig. 8 is base schematic diagram of the invention.
Each serial number meaning of attached drawing are as follows: 1, rotating mechanism;2, clamping mechanism;3, driving mechanism;4, pedestal;11, slide;
12, synchronous belt mechanism;13, planetary gear train;14, platform B;15, a cabinet frame;16, platform A;121, synchronous belt;122, synchronizing wheel B;
123, connecting shaft;124, deep groove ball bearing;125, unilateral bearing;126, shaft end gland;127, gear is driven;131, output gear
A;132, output shaft A;133, intermediate gear A;134, jackshaft A;135, fixed gear;136, fixing axle;137, synchronizing wheel A;
138, right baffle-plate;139, jackshaft B;1310, intermediate gear B;1311, output shaft B;1312, output gear B;1313, right gear
Plate;151, cross bar;152, support shaft A;153, fixing axle is supported;154, support shaft B;21, hinge seat B;22, hinge seat A;
23, torsional spring;24, short connecting rod A;25, short connecting rod B;26, force rod;27, long connecting rod A;28, long connecting rod B;29, pressing plate;31, spring
Seat;32, compressed spring A;33, compressed spring B;34, spring seat end cover;35, push-pull rod;36, power block is led;37, transition plates;38,
Sliding block;39, ball-screw;310, reduction gearbox;311, stepper motor;312, line slide rail;41, lower position block A;42, buffering adhesive;
43, right sliding block A;44, right slide block B;45, rack gear;46, right guide rail;47, bottom plate;48, upper limit position block;49, left rail;410, left
Slide block B;411, left slider A;412, lower position block B;413, positioning support plate;414, positioning plate.
Specific embodiment
In order to make technological means, the course of work and the structure function realized of the present invention convenient for understanding, with reference to the accompanying drawing into
One step illustrates its specific embodiment.
Referring to Fig. 1, rotating mechanism 1 does straight reciprocating motion under the effect of driving mechanism 3, leaves step 1: leading power block 36
Force rod 26, clamping mechanism 2 restore under the effect of torsional spring 23, and pressing plate 29 unclamps platform A16, and compressed spring B restores former long;Second
Step: the positive sliding of slide 11 (far from 2 direction of clamping mechanism) certain distance, platform A16 leave positioning plate 414;Step 3: slide
11 continue positive sliding, and driving gear 127 is engaged with rack gear 45, and platform A16 and platform B14 are around the rotation of fixing axle 136 180
Degree, platform A16 and platform B14 transposition, slide 11 are contacted with upper limit position block 48;Step 4: inversely sliding is (close for slide 11
2 direction of clamping mechanism), driving gear 127 is engaged with rack gear 45, and under the effect of unilateral bearing 125, platform A16 and platform B14 are protected
State after holding transposition is constant, and platform B14 slides on positioning plate 414, contacts with 414 positioning convex platform of positioning plate, with this
Meanwhile slide 11 is contacted with lower position block B412 and lower position block A41;Step 5: leading power block 36 close to force rod 26, step up machine
Structure 2 works under the effect of force rod 26, and pressing plate 29 moves downward clamping platform B14 along vertical direction, and compressed spring B is compressed.
In the work pieces process on platform A16, workpiece to be processed is dismantled and loaded onto the finished work on platform B14, as platform A16
On work pieces process after the completion of, by acting above, platform A16 and the rapid transposition of platform B14, and platform B14 is rapid
It is positioned into machining state, especially when cooperating the flow work, workpiece is dismounted using mechanical arm, is remarkably improved work effect
Rate.
Referring to fig. 2, when rotating mechanism 1 is along right guide rail 46, the positive sliding of left rail 49 (far from 2 direction of clamping mechanism),
Rotating mechanism 1 first maintains the original state smoothly, and when platform A16 leaves clamping mechanism 2, driving gear 127 is engaged with rack gear 45, drives
Moving gear 127 drives synchronizing wheel B122 to rotate under the action of unilateral bearing 125, and synchronizing wheel B122 drives synchronizing wheel A137 rotation
Turn, synchronizing wheel A137 and planetary gear train 13 are connected, and planetary gear train 13 is with moving platform B14, platform A16 around the rotation of fixing axle 136 180
Degree, platform B14 and platform A16 transposition, platform B14 and platform A16 itself do not rotate only opposite when rotating around fixing axle 136
It is translatable in ground;When rotating mechanism 1 is inversely slided along right guide rail 46, left rail 49, driving gear 127 is engaged with rack gear 45,
Driving gear 127 does not drive synchronizing wheel B122 to rotate under the action of unilateral bearing 125, and rotating mechanism 1 keeps platform B14 peace
State after platform A16 transposition is smooth to initial position;There is T-slot on platform B14 and platform A16, be easily installed fixture, puts down
The reserved groove of promising pressing plate 29 at platform B14 and platform A16 two corners, convenient for after stepping up and platform is with high, avoiding and workpiece interference.
Fig. 6 is participated in, clamping mechanism 2 belongs to parallelogram mechanism, guarantees that pressing plate 29 provides vertical direction clamping force;Torsional spring
When 23 guarantee 26 non-stress of force rod, short connecting rod A24, short connecting rod B25, long connecting rod A27, long connecting rod B28 are perpendicular to bottom plate 47, i.e.,
Pressing plate 29 is far from platform A16 or platform B14.
Referring to Fig. 7, driving mechanism 3 uses ball-screw 39, with friction loss is small, transmission efficiency is high, long service life
The advantages of;When push-pull rod 35 pushes and pulls slide 11, compressed spring A32, compressed spring B33 eliminate starting of the push-pull rod 35 to slide 11
Impact and reversing impact;It leads power block 36 to act on before force rod 26, slide 11 and platform A16 or platform B14 stop motion are led
When power block 36 acts on force rod 26, compressed spring B33 is that push-pull rod 35 provides axial displacement compensation.
Fig. 8 is participated in, positioning plate 414 is used to position platform A16 or platform B14, to prevent platform A16 or platform B14 sliding
It collides when moving positioning plate 414, big chamfering is opened on positioning plate 414, to guarantee the positioning of plateau levels direction, positioning plate 414
On have positioning convex platform.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and
Without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore, nothing
By from the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended
Claim rather than above description limit, it is intended that the institute that will be fallen within the meaning and scope of the equivalent elements of the claims
It changes and is included within the present invention.
Moreover, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be by appropriately combined, formation those skilled in the art
The other embodiments that member is understood that.
Claims (5)
1. a kind of CNC milling machine rotary table, including rotating mechanism (1), clamping mechanism (2), driving mechanism (3), pedestal (4),
It is characterized by:
The rotating mechanism (1) includes slide (11), synchronous belt mechanism (12), planetary gear train (13), platform B(14), a cabinet frame
(15), platform A(16);The synchronous belt mechanism (12) includes synchronous belt (121), synchronizing wheel A(137), synchronizing wheel B(122), even
Spindle (123), deep groove ball bearing (124), unilateral bearing (125), shaft end gland (126), driving gear (127);The planet
Train (13) includes output gear A(131), output shaft A(132), intermediate gear A(133), jackshaft A(134), fixed gear
(135), fixing axle (136), synchronizing wheel A(137), right baffle-plate (138), jackshaft B(139), intermediate gear B(1310), output
Axis B(1311), output gear B(1312), right shell body (1313);One cabinet frame (15) includes cross bar (151), support shaft A
(152), fixing axle (153), support shaft B(154 are supported);
The clamping mechanism (2) includes hinge seat A(22), hinge seat B(21), torsional spring (23), short connecting rod A(24), short connecting rod B
(25), force rod (26), long connecting rod A(27), long connecting rod B(28), pressing plate (29);
The driving mechanism (3) includes spring base (31), compressed spring A(32), compressed spring B(33), spring seat end cover (34),
Push-pull rod (35) leads power block (36), transition plates (37), sliding block (38), ball-screw (39), reduction gearbox (310), stepper motor
(311), line slide rail (312);
The pedestal (4) includes lower position block A(41), buffering adhesive (42), right sliding block A(43), right slide block B (44), rack gear (45),
Right guide rail (46), bottom plate (47), upper limit position block (48), left rail (49), left slider B(410), left slider A(411), lower limit
Block B(412), positioning support plate (413), positioning plate (414);
The synchronous belt mechanism (12) is connect by deep groove ball bearing (124) with slide (11), and deep groove ball bearing (124) outer ring is logical
It crosses slide (11) hole shoulder and internal circlip carries out axial restraint, deep groove ball bearing (124) inner ring passes through connecting shaft (123) axis
Shoulder and axis carry out axial restraint with check ring, and connecting shaft (123) one end is connected with unilateral bearing (125) inner ring by key
It connects, unilateral bearing (125) inner ring carries out axial restraint, unilateral bearing by connecting shaft (123) shaft shoulder and shaft end gland (126)
(125) outer ring is attached with driving gear (127) by key, and unilateral bearing (125) outer ring passes through through driving gear (127)
Hole shoulder and internal circlip carry out axial restraint, and connecting shaft (123) other end is connected by key with synchronizing wheel B(122), synchronous
Take turns B(122) axial restraint, synchronizing wheel B(122 are carried out by connecting shaft (123) shaft shoulder and shaft end gland) and synchronizing wheel A(137)
Pass through synchronous belt (121) passing movement and torque;
The planetary gear train (13) is interference fitted with slide (11) by fixing axle (136) and is fixed by cylindrical pin with internal thread,
Fixing axle (136) is connected by key with fixed gear (135), and fixed gear (135) pass through fixing axle (136) shaft shoulder and quill
To fixation, fixing axle (136) is connect with right baffle-plate (138) by bearing, and bearing inner race is used by fixing axle (136) shaft shoulder and axis
Check ring axial restraint, bearing outer ring pass through right baffle-plate (138) hole shoulder and internal circlip axial restraint, fixing axle
(136) with right shell body (1313)
It is connected by bearing, bearing inner race passes through right shell body by sleeve and axis check ring axial restraint, bearing outer ring
(1313) hole shoulder and internal circlip axial restraint, fixed gear (135) are engaged with intermediate gear B(1310), intermediate gear B
(1310) it is connected by key with jackshaft B(139), intermediate gear B(1310) it is axial by the jackshaft B(139) shaft shoulder and sleeve
It is fixed, jackshaft B(139) it is connect with right baffle-plate (138) by bearing, bearing inner race is used by the jackshaft B(139) shaft shoulder and axis
Check ring axial restraint, bearing outer ring pass through right baffle-plate (138) hole shoulder and internal circlip axial restraint, jackshaft B
(139) it is connect with right shell body (1313) by bearing, bearing inner race is by sleeve and axis check ring axial restraint, outside bearing
Circle passes through right shell body (1313) hole shoulder and internal circlip axial restraint, intermediate gear B(1310) and output gear B(1312)
Engagement, output gear B(1312) be connected by key with output shaft B(1311), output gear B(1312) by output shaft B
(1311) shaft shoulder and sleeve axial restraint, output shaft B(1311) it is connect with right baffle-plate (138) by bearing, bearing inner race passes through
Output shaft B(1311) shaft shoulder and axis check ring axial restraint, bearing outer ring pass through right baffle-plate (138) hole shoulder and hole spring
Retaining ring axial restraint, output shaft B(1311) it is connect with right shell body (1313) by bearing, bearing inner race passes through sleeve and axis bullet
Spring retaining ring axial restraint, bearing outer ring pass through right shell body (1313) hole shoulder and internal circlip axial restraint, output gear A
(131), output shaft A(132), intermediate gear A(133), jackshaft A(134) assembly relation and output gear B(1312), output
Axis B(1311), intermediate gear B(1310), jackshaft B(139) identical, synchronizing wheel A(137) with right baffle-plate (138) pass through bolt
It is connected;
One cabinet frame (15) is interference fitted by support fixing axle (153) and slide (11) and is consolidated by cylindrical pin with internal thread
Fixed, support fixing axle (153) connect by bearing with cross bar (151), bearing inner race by support fixing axle (153) shaft shoulder with
Axis check ring axial restraint, bearing outer ring pass through cross bar (151) hole shoulder and internal circlip axial restraint, support shaft
B(154 it) is connect with cross bar (151) by bearing, bearing inner race is solid with check ring by the support shaft B(154) shaft shoulder and axis
Fixed, bearing outer ring passes through cross bar (151) hole shoulder and internal circlip axial restraint, support shaft A(152) assembly method and
Support shaft B(154) it is identical;Platform B(14) it is interference fitted with output shaft B(1311) and support shaft B(154) and passes through straight pin company
Connect, platform A(16) with output shaft A(132) and support shaft A(152) interference fit and by cylinder pin connection;
The hinge seat A(22), hinge seat B(21) parallel arrangement and with bottom plate (47) be connected, hinge seat A(22) with short connecting rod A
(24) connected by revolute pair, rotation vice division chief's installation torsional spring (23), short connecting rod A(24) and force rod (26) and long connecting rod A(27)
Connected by revolute pair, form composite rotation pair, long connecting rod A(27) it is connect with pressing plate (29) by revolute pair, hinge seat B
(21), short connecting rod B(25), long connecting rod B(28) assembly method and hinge seat A(22), short connecting rod A(24), long connecting rod A(27) phase
Together, short connecting rod B(25) it is arranged in parallel with short connecting rod A(24), long connecting rod B(28) and long connecting rod A(27);
The driving mechanism (3) is connected by line slide rail (312) and bottom plate (47) and by spring base (31) and slide (11)
It is connected, stepper motor (311) and reduction gearbox (310) are connected, and reduction gearbox (310) output shaft passes through shaft coupling and ball-screw (39)
Connection, ball-screw (39) are connect by nut seat with sliding block (38), and sliding block (38) and transition plates (37) are connected, transition plates (37)
It is connected with power block (36) are led, leads power block (36) and push-pull rod (35) interference fit and by cylinder pin connection, push-pull rod (35) axis
There is the shaft shoulder at end, and shaft shoulder two sides are connect with compressed spring A(32), compressed spring B(33) respectively, and spring base (31) passes through spring base end
(34) are covered to fix compressed spring A(32), compressed spring B(33) in the cavity, between push-pull rod (35) and spring seat end cover (34)
Gap cooperation;
The lower position block A(41), rack gear (45), right guide rail (46), upper limit position block (48), left rail (49), lower position block B
(412), positioning support plate (413) is each attached on the bottom plate (47), lower position block A(41), lower position block B(412), the upper limit
Position block (48) is respectively and fixedly provided with buffering adhesive (42), right sliding block A(43), right slide block B (44), right guide rail (46) and left slider A(411),
Left slider B(410), left rail (49) parallel arrangement, right sliding block A(43), right slide block B (44), left slider A(411), left slider B
(410) it is connected with slide (11), positioning plate (414) and positioning support plate (413) are connected.
2. CNC milling machine rotary table described in accordance with the claim 1, it is characterised in that: rotating mechanism (1) is along right guide rail
(46), when the positive sliding of left rail (49) (far from clamping mechanism (2) direction), rotating mechanism (1) first maintain the original state smoothly, when
Platform A(16) when leaving clamping mechanism (2), driving gear (127) is engaged with rack gear (45), and driving gear (127) is in one-way shaft
Hold and drive synchronizing wheel B(122 under the action of (125)) rotation, synchronizing wheel B(122) drive synchronizing wheel A(137) and rotation, synchronizing wheel A
(137) it is connected with planetary gear train (13), planetary gear train (13) is with moving platform B(14), platform A(16) it is rotated around fixing axle (136)
180 degree, platform B(14) and platform A(16) transposition, platform B(14) and platform A(16) around fixing axle (136) rotate when from
Body does not rotate to be translatable only with respect to ground;Inversely sliding is (close to add along right guide rail (46), left rail (49) for rotating mechanism (1)
Tight mechanism (2) direction) when, driving gear (127) is engaged with rack gear (45), work of driving gear (127) in unilateral bearing (125)
Synchronizing wheel B(122 is not driven under) rotation, rotating mechanism (1) keeps platform B(14) and platform A(16) shape after transposition
State is smooth to initial position;Platform B(14) and platform A(16) on have T-slot, be easily installed fixture, platform B(14) and platform A
(16) the reserved groove of promising pressing plate (29) at two corners avoids convenient for stepping up rear and platform with height and workpiece is interfered.
3. CNC milling machine rotary table described in accordance with the claim 1, it is characterised in that: clamping mechanism (2) belongs to parallel four
Bian Xing mechanism guarantees that pressing plate (29) provide vertical direction clamping force;When torsional spring (23) guarantees force rod (26) non-stress, short connecting rod
A(24), short connecting rod B(25), long connecting rod A(27), long connecting rod B(28) perpendicular to bottom plate (47), i.e., pressing plate (29) is far from platform A
(16) or platform B(14).
4. CNC milling machine rotary table described in accordance with the claim 1, it is characterised in that: driving mechanism (3) uses ball wire
Thick stick (39) has the advantages that friction loss is small, transmission efficiency is high, long service life;When push-pull rod (35) pushes and pulls slide (11), pressure
Contracting spring A(32), compressed spring B(33) eliminate push-pull rod (35) starting impact and reversing impact to slide (11);Lead power block
(36) act on before force rod (26), slide (11) and platform A(16) or platform B(14) stop motion, lead power block (36) work
When for force rod (26), compressed spring B(33) it is that push-pull rod (35) provide axial displacement compensation.
5. according to the CNC milling machine rotary table described in claim 1 ~ 4, it is characterised in that: positioning plate (414) is used for flat
Platform A(16) or platform B(14) positioning, to prevent platform A(16) or platform B(14) sliding positioning plate (414) when collide,
Positioning plate opens big chamfering on (414), and to guarantee the positioning of plateau levels direction, positioning plate has positioning convex platform on (414).
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CN201811326542.2A CN109249226B (en) | 2018-11-08 | 2018-11-08 | Rotary workbench of numerical control milling machine |
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CN109249226B CN109249226B (en) | 2023-09-12 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114367633A (en) * | 2022-01-17 | 2022-04-19 | 苏州明志科技股份有限公司 | Machining rack and machine tool equipment |
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CN102366845A (en) * | 2011-10-12 | 2012-03-07 | 宁波市鄞州泰盛数控设备有限公司 | Gear processing machine |
CN106181484A (en) * | 2016-08-20 | 2016-12-07 | 江门市弘程精密制造有限公司 | A kind of clamp fixture platform of rotatable displacement |
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GB609842A (en) * | 1945-03-14 | 1948-10-07 | Fritz Suffert Burner | Improved work carrying means for attachment to vertical milling machines |
GB1197428A (en) * | 1968-05-31 | 1970-07-01 | Schiess Ag | Portal-Type Milling Machine |
US6408526B1 (en) * | 1999-04-12 | 2002-06-25 | The Regents Of The University Of California | Ultra-precision positioning assembly |
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CN114367633A (en) * | 2022-01-17 | 2022-04-19 | 苏州明志科技股份有限公司 | Machining rack and machine tool equipment |
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