CN106141711B - Hollow electromechanics clamping device - Google Patents
Hollow electromechanics clamping device Download PDFInfo
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- CN106141711B CN106141711B CN201610747780.5A CN201610747780A CN106141711B CN 106141711 B CN106141711 B CN 106141711B CN 201610747780 A CN201610747780 A CN 201610747780A CN 106141711 B CN106141711 B CN 106141711B
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- disc spring
- trombone slide
- spring group
- clamping device
- hollow
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The present invention provides hollow electromechanical clamping device,Including collet and trombone slide,Trombone slide is threaded through in main shaft,The threaded one end of collet and trombone slide connects,Trombone slide connects for hollow structure and with the endoporus of collet,Trombone slide, which is stretched out on the other end of main shaft, is provided with disc spring group assembly,Disc spring group assembly is fixed on main shaft,Disc spring group assembly includes being arranged on the disc spring group inside disc spring group assembly in installation cavity,Disc spring gland is provided with installation cavity,Disc spring gland one end is resisted against in disc spring group,The other end stretch out installation cavity and with trombone slide axially position,The resilient force of disc spring group makes trombone slide drive collet to clamp on disc spring gland,This clamping device further includes motor,Motor passes through lead screw transmission mechanism being converted into the output shaft of motor linear motion and driving disc spring gland to be axially moved by lever transmission mechanism and overcome the elastic force of disc spring group to make trombone slide Axially moving belt move collet to unclamp.
Description
Technical field
The invention belongs to field of mechanical technique, is related to hollow electromechanical clamping device.
Background technology
Interior pull-type collet is a kind of to be used for clamping the fixture of workpiece to be processed, the typical structure of interior pull-type collet
It is that the head for carrying male cone (strobilus masculinus) is provided with elongated slot vertically, being formed can be formed and be clamped with the clamping jaw of concentric contraction, clamping jaw centre
The endoporus that workpiece shapes are adapted.Axially movable, clamping jaw deformation makes endoporus diminish or increase to interior pull-type collet, realizes
Clamping and release to workpiece.Interior pull-type collet can be provided on numerically controlled lathe or special purpose machine tool and use, the prior art
In, the axial movement generally use of interior pull-type collet is pneumatic, hydraulic-driven or pneumatic and hydraulic pressure double drive.
For example, Chinese patent【Application number 201420820059.0；Authorization Notice No. CN 204339405U】Disclosed one kind
The floating knife machining mechanism of main shaft includes elastic device, power cylinder assembly and rod stroke regulating device, and elastic device includes disc spring
Mounting base, disk spring, pressing plate, baffle ring and gland, are sequentially installed with disc spring mounting base and are set in pull rod periphery from front to back
Disk spring, pressing plate and gland, power cylinder assembly includes power cylinder drive end bearing bracket, secondary piston, power cylinder, rear piston and dynamic
Power rear end of the cylinder block lid, power cylinder drive end bearing bracket and power cylinder rear end cap are separately mounted to the front and rear sides of power cylinder, preceding work
Plug inner side is set in disc spring mounting base periphery and secondary piston part and stretches out power cylinder drive end bearing bracket end face, rod stroke regulating device
Including installing plate, adjusting nut and thread bush.
The floating knife machining mechanism of above-mentioned main shaft is actually also a kind of clamping device, by the way that cylinder or hydraulic cylinder are integrated
In in main spindle box, driving pull rod movement, so as to control collet to clamp or unclamp workpiece.The device there are the problem of be：1、
Cylinder or hydraulic cylinder are integrated in main spindle box, complicated, to leakproofness the requirement of main spindle box is high, and dismounting and maintenance be not square
Just, leakage contribution workshop condition and easily occurs；2nd, need to increase source of the gas or hydraulic pressure oil circulating system, gas circuit and oil circuit
It is complicated, add operating cost and failure rate；3rd, vibration is easily produced during main shaft high-speed rotation, influences machining accuracy.
The content of the invention
The purpose of the present invention is for existing technology, there are the above problem, it is proposed that hollow electromechanics clamping device, this hair
The technical problem of bright solution is to substitute traditional, pneumatic, hydraulic-driven or at the same time using pneumatic and hydraulic-driven clamping device.
The purpose of the present invention can be realized by following technical proposal：Hollow electromechanics clamping device, lathe include main spindle box
With the main shaft of inner hollow, this clamping device includes collet and trombone slide, and the trombone slide is threaded through in main shaft, the spring clip
Head is connected with the threaded one end of trombone slide, it is characterised in that the trombone slide is hollow structure and is connected with the endoporus of collet, institute
State and be provided with disc spring group assembly on the other end of trombone slide stretching main shaft, the disc spring group assembly is fixed on main shaft, the disc spring
Group assembly includes being arranged on the disc spring group inside disc spring group assembly in installation cavity, and disc spring gland, institute are provided with the installation cavity
Disc spring gland one end is stated to be resisted against in disc spring group, the other end stretch out installation cavity and with trombone slide axially position, the bullet of the disc spring group
Property power act on disc spring gland make trombone slide drive collet clamp；This clamping device further includes motor, and the motor passes through
The rotation of the output shaft of motor is converted into linear motion and drives disc spring gland by lever transmission mechanism by lead screw transmission mechanism
It is axially moved and overcomes the elastic force of disc spring group trombone slide Axially moving belt is moved collet release.
This hollow electromechanical clamping device drives disc spring gland using motor by lead screw transmission mechanism and lever transmission mechanism
Movement, plus the resilient force of the disc spring group in disc spring group assembly, makes trombone slide Axially moving belt move collet clamping or pine
Go into operation part, realizes and substitutes traditional, pneumatic, hydraulic-driven or pneumatic and hydraulic-driven double drive with motor-driven mode
Mode.Using motor as power source, without being separately provided air supply system or oil supply system, more energy conservation and environmental protection, reduce into
This.
In above-mentioned hollow electromechanical clamping device, the lead screw transmission mechanism includes the internal base with mounting hole,
The motor is fixed on base, and shaft coupling, screw and ball head are provided with the mounting hole, and the output shaft of the motor is stretched
Enter in mounting hole and be connected by shaft coupling with one end of screw, the other end of the screw is matched somebody with somebody with ball head by screw-driven
Close, the ball head is also circumferentially positioned by the guide pad on base.Motor output shaft drives screw to rotate by shaft coupling, leads
The circumferential movement of ball head is limited to block, ball head is moved along a straight line, realizes and is converted into the rotation of motor output shaft
The linear motion of ball head.
Preferably, in above-mentioned hollow electromechanical clamping device, bearing one, the screw are provided with the mounting hole
On be connected through a screw thread a locking nut, the locking nut is resisted against on the end face of bearing one.Locking nut plays screw
Acted on to axial limiting so that the rotation of screw is more steady.
In above-mentioned hollow electromechanical clamping device, the lever transmission mechanism includes shift fork, and the disc spring gland stretches out
The part of installation cavity is arranged with bearing two, the disc spring gland is inner have for bearing two against butting section, the bearing two
Outer ring be arranged with and stir ring, the outer ring tight fit for stirring ring and bearing two, has yoke bracket on the base, described
It is hinged in the middle part of shift fork on above-mentioned yoke bracket and forms the fulcrum that shift fork rotates, one end of the shift fork is connected by bulb ties
Structure is connected with ball head, and the other end, which is hinged on, to be stirred on ring.Shift fork is axially moved by stirring annulus dynamic bearing two, bearing it is interior
Circle drives disc spring gland to move with disc spring gland end contact, and disc spring gland is as main axis can the inner ring with dynamic bearing at this time
Relative to outer ring rotating, and make to stir ring and shift fork remains stationary；After shift fork resets, the inner ring of the bearing not end with disc spring gland
Face contacts, do not have the transmission of power and vibration between disc spring gland and shift fork so that the rotation of main shaft and the tension of trombone slide, release
Act non-interference, improve the stability of pinching action and the precision of machining.
In above-mentioned hollow electromechanical clamping device, the shift fork is semiorbicular connecting portion with stirring the hinged one end of ring
One, described stir has cylindrical groove on ring, and the both sides of the connecting portion one by holding screw cylinder and are stirred on ring respectively
Cylindrical groove coordinate, and the connecting portion one can be rotated around holding screw cylinder, the shift fork be connected with ball head one
Hold as there is spherical link slot, the ball head close to the end of ball head in rod-shaped connecting portion two, the connecting portion two
End be bulb, the bulb is located in link slot, and the sphere of bulb is close on the inner wall of link slot.Shift fork and stir
The cooperation that ring passes through cylindrical groove and holding screw cylinder, it is allowed to shift fork and the junction relative motion in the circumferential for stirring ring,
Avoid the occurrence of stuck situation damage parts so that the work of clamping device is more stable.
Alternatively, in above-mentioned hollow electromechanical clamping device, the lever transmission mechanism includes shift fork, institute
Stating has yoke bracket on base, be hinged in the middle part of the shift fork on above-mentioned yoke bracket and form fulcrum, and the one of the shift fork
End is connected by bulb connection structure with ball head, and the other end is provided with roller, and the roller can be resisted against the stretching of disc spring gland
On the end face of installation cavity.Shift fork applies active force by pair of rollers disc spring gland, drives the movement of disc spring gland；When collet presss from both sides
During clamping of workpieces, roller is not contacted with disc spring gland, does not have the transmission of power and vibration between disc spring gland and shift fork.
In above-mentioned hollow electromechanical clamping device, adjusting nut, the adjusting nut are threaded with the trombone slide
It is fixedly connected with disc spring gland.The relative position of disc spring gland and trombone slide can be adjusted by rotating adjusting nut, changes disc spring
The decrement of group, so as to play the role of adjusting clamping force.
In above-mentioned hollow electromechanical clamping device, the disc spring group assembly further include disc spring assembly housing, housing flange disk,
Disc spring group conduit, the housing flange disk are fixed on main shaft, and the disc spring group conduit is set in outside trombone slide and and housing flange
Disk is fixed, and the disc spring assembly housing is fixed on housing flange disk and forms the installation cavity, the disc spring with disc spring group conduit
Assembly housing end has the opening that installation cavity is stretched out for disc spring gland, and open inner ends face can be resisted against by having on the disc spring gland
Gear edge.Disc spring group is arranged in the installation cavity of disc spring group assembly, by disc spring group conduit support, avoid disc spring group and trombone slide it
Between friction, the elastic force that disc spring group is transmitted in concentric fashion can be acted on preferably on disc spring gland, passed through and set gear edge
It is avoided that disc spring gland departs from disc spring group assembly；In addition, disc spring group also has, size is small, bearing capacity is strong, required installation space
Small, the advantages that service life is long and operating temperature section is wide.
In above-mentioned hollow electromechanical clamping device, there is circumferentially arranged compensating groove, institute on the disc spring assembly housing
State that the cross section of compensating groove is dovetail-shape, the center of gravity of main shaft can be adjusted by being embedded at least one balance weight in compensating groove, often
A balance weight includes cell block one and cell block two, can be stuck in balance weight after cell block one and two split of cell block flat
Locked in weighing apparatus groove and by fixing screws.Balance weight is adjusted by setting, can quickly adjust the dynamic balancing of main shaft, particularly pin
To high-speed main spindle lathe, processing performance can be significantly improved；Compensating groove uses swallowtail-shaped structure, when cell block one and cell block two
After being installed in place, balance weight can not just depart from compensating groove, then install fixing screws, and balance weight will not be by main shaft high-speed rotation
Throw away or be subjected to displacement.
In above-mentioned hollow electromechanical clamping device, the motor is three-phase miniature decelerating motor.Three-phase miniature slows down electric
Machine has the advantages that small, power is low, consistent with the power source of lathe in itself, without being separately provided air supply system or fuel feeding
System, more energy conservation and environmental protection, work is more stable, and operating cost and maintenance cost are lower, the three-phase miniature decelerating motor corresponding time
It is shorter, clamping can be realized in most short 1 seconds and is unclamped.
In above-mentioned hollow electromechanical clamping device, the Workpiece clamping device is further included close to switch, switch base, contact
Device and relay.It is arranged on close to switch, switch base on base, the electric elements such as contactor and relay are arranged at lathe
In control cabinet, the control to clamping device is used for realization.
Compared with prior art, be the advantages of this hollow electromechanical clamping device, driven using motor substitute traditional, pneumatic,
Hydraulic-driven uses pneumatic and hydraulic-driven at the same time, is converted into the rotation of motor output shaft directly by lead screw transmission mechanism
Line moves, then drives disc spring gland to move by lever transmission mechanism, makes trombone slide with disc spring gland motion control collet
Clamp or unclamp workpiece, simple in structure, easy to maintain, good operating stability, fast response time.In operation process, trombone slide also can
Enough circumferential movements drive collet to clamp or unclamp, and clamping and discharging are not shut down in realization, improve production efficiency.
Brief description of the drawings
Fig. 1 is the assembling structure schematic perspective view of this hollow electromechanical clamping device.
Fig. 2 be the Ith in Fig. 1 at partial enlarged view.
Fig. 3 is the assembling structure left view schematic diagram of the hollow electromechanical clamping device of this in embodiment one.
Fig. 4 is the schematic cross-sectional view in A-A directions in Fig. 3.
Fig. 5 is the assembling structure left view schematic diagram of the hollow electromechanical clamping device of this in embodiment two.
In figure, 1, main spindle box；2nd, main shaft；3rd, collet；4th, trombone slide；5th, disc spring group assembly；51st, installation cavity；52nd, disc spring
Assembly housing；521st, compensating groove；53rd, housing flange disk；54th, disc spring group conduit；6th, disc spring group；7th, disc spring gland；8th, motor；81、
Output shaft；9th, base；91st, mounting hole；10th, shaft coupling；11st, screw；12nd, ball head；121st, bulb；13rd, bearing one；14th, lock
Tight nut；15th, shift fork；151st, connecting portion one；152nd, connecting portion two；16th, bearing two；17th, ring is stirred；171st, cylindrical groove；18、
Yoke bracket；19th, holding screw cylinder；20th, adjusting nut；21st, balance weight；211st, cell block one；212nd, cell block two；22、
Fixing screws；23rd, roller；24th, lock-screw；25th, locking spring；26th, spring base；27th, guide pad.
Embodiment
It is the specific embodiment of the present invention and with reference to attached drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one：
Lathe includes main spindle box 1 and main shaft 2, and it is total that this hollow electromechanical clamping device includes collet 3, trombone slide 4, disc spring group
Into 5, disc spring group 6, disc spring gland 7, motor 8, lead screw transmission mechanism and lever transmission mechanism.
Specifically, shown as shown in Figure 1, Figure 3 and Figure 4, the main shaft 2 of lathe is hollow structure, and main shaft 2 is arranged on main spindle box 1
It is interior.Trombone slide 4 is threaded through in main shaft 2, and collet 3 is connected with the threaded one end of trombone slide 4, and the other end of trombone slide 4 stretches out main shaft 2,
Disc spring group assembly 5 is sheathed on the end.2 end of main shaft has an inner conical surface, and the male cone (strobilus masculinus) of collet 3 is resisted against inner conical surface
On, when trombone slide 4 pulls collet 3 to move backward, inner conical surface extrudes the male cone (strobilus masculinus) of collet 3, presss from both sides collet 3
Tightly.In the present embodiment, disc spring group assembly 5 includes disc spring assembly housing 52, housing flange disk 53, disc spring group conduit 54, housing flange
Disk 53 is set on main shaft 2 and is fixed with 2 tail end of main shaft, disc spring group conduit 54 be set in trombone slide 4 it is outer and with housing flange disk 53
Fixed, disc spring assembly housing 52 is fixed on housing flange disk 53 and forms installation cavity 51 with disc spring group conduit 54.Several dishes
The disc spring group 6 that spring assembly forms is arranged in installation cavity 51, and is supported by disc spring group conduit 54, disc spring group assembly 5 with
Main shaft 2 rotates together.
As shown in figure 4, trombone slide 4 connects for hollow structure and with the endoporus of collet 3, long bar can be from collet
3 extend through hollow trombone slide 4 and are pierced by from 4 rear end of trombone slide so that lathe can process the longer workpiece such as bar.
As shown in Figure 3 and Figure 4, disc spring gland 7 is arranged in installation cavity 51, and 7 one end of disc spring gland is resisted against disc spring group 6
On, 52 end of disc spring assembly housing has the opening that installation cavity 51 is stretched out for disc spring gland 7, and the other end of disc spring gland 7 stretches out peace
Behave affectedly 51 and makes trombone slide 4 drive collet 3 with 4 axially position of trombone slide, the resilient force of disc spring group 6 on disc spring gland 7
Clamp.There is the gear edge that can be resisted against open inner ends face on disc spring gland 7, prevent disc spring gland 7 from departing from installation cavity 51.This implementation
In example, adjusting nut 20 is threaded with trombone slide 4, adjusting nut 20 is fixedly connected with disc spring gland 7.
Preferably, as shown in Figure 2 and Figure 4, there is circumferentially arranged compensating groove 521 on disc spring assembly housing 52,
The cross section of compensating groove 521 is dovetail-shape, and main shaft 2 can be adjusted by being embedded at least one balance weight 21 in compensating groove 521
Center of gravity.Each balance weight 21 includes cell block 1 and cell block 2 212, cell block 1 and 2 212 split of cell block it
After balance weight 21 can be made to be stuck in compensating groove 521, there are junction of the edges of two sheets of paper threaded hole in cell block 1 and 2 212 corresponding position of cell block,
It is screwed into fixing screws 22 balance weight 21 is locked in compensating groove 521.
As shown in Figure 1, lead screw transmission mechanism includes the base 9 being fixed on main spindle box 1, motor 8 is installed on base 9 simultaneously
Fixed by base 9 and main spindle box 1, the inside of base 9 has mounting hole 91.In the present embodiment, motor 8 slows down electric for three-phase miniature
Machine, as shown in Figure 3 and Figure 4, is provided with shaft coupling 10, screw 11 and ball head 12, the output shaft 81 of motor 8 is logical in mounting hole 91
One end that shaft coupling 10 is crossed with screw 11 is connected, and the other end and the ball head 12 of screw 11 are coordinated by screw-driven.
Preferably, at least one bearing 1 is provided with mounting hole 91, has been connected through a screw thread on screw 11
One locking nut 14, locking nut 14 are resisted against on the end face of bearing 1.Ball head 12 can also pass through the guiding on base 9
Block 27 is circumferentially positioned.
The rotation of the output shaft 81 of motor 8 is converted into linear motion by lead screw transmission mechanism, and passes through lever transmission mechanism
Drive the axial movement of disc spring gland 7 to overcome the elastic force of disc spring group 6 to make 4 Axially moving belt of trombone slide move collet 3 to unclamp.This reality
Apply in example, as depicted in figs. 1 and 2, lever transmission mechanism includes shift fork 15, and the part that disc spring gland 7 stretches out installation cavity 51 is arranged
Have a bearing 2 16, disc spring gland 7 is inner have for bearing 2 16 against butting section, the outer ring of bearing 2 16, which is arranged with, stirs ring
17, the outer ring tight fit of ring 17 and bearing 2 16 is stirred, there is yoke bracket 18 on base 9, the middle part of shift fork 15, which is hinged on, dials
Pitch and the fulcrum that shift fork 15 rotates is formed on stent 18, one end of shift fork 15 is connected by bulb connection structure with ball head 12, separately
One end, which is hinged on, stirs on ring 17.
As shown in figure 3, shift fork 15 is semiorbicular connecting portion 1 with stirring the hinged one end of ring 17, stir on ring 17
With cylindrical groove 171, the cylindrical groove on ring 17 by holding screw cylinder 19 and is stirred in the both sides of connecting portion 1 respectively
171 coordinate, and connecting portion 1 can be rotated around holding screw cylinder 19, one end that shift fork 15 is connected with ball head 12 in
Rod-shaped connecting portion 2 152, connecting portion 2 152 have spherical link slot, the end of ball head 12 close to the end of ball head 12
Portion is bulb 121, and bulb 121 is located in link slot.The side opposite with link slot of connecting portion 2 152 has connection link slot
Locking hole, lock-screw 24 is provided with locking hole, and the internal diameter of locking hole is more than the diameter of lock-screw 24.Lock-screw 24 is worn
Cross locking hole to be fixed on bulb 121, locking spring 25 is additionally provided with lock-screw 24,25 one end of locking spring is resisted against lock
On step in tieholen, the other end is resisted against the head of lock-screw 24 by spring base 26, makes the sphere of bulb 121 tight all the time
Paste the inner wall of link slot.
Workpiece clamping device is further included close to switch, switch base, contactor and relay.Set close to switch, switch base
On base 9, the electric elements such as contactor and relay are arranged in the control cabinet of lathe, are used for realization to clamping device
Control.
Originally the course of work of hollow electromechanical clamping device is：Process the preparation stage, when motor 8 rotates forward, ball head 12 stretches out
Shift fork 15 is set to rotate certain angle around fulcrum, the other end of shift fork 15, which acts on, to be stirred ring 17 and make to stir ring 17 axially inward
Movement, bearing 2 16 drive the also inwardly movement of disc spring gland 7, trombone slide 4 as shift fork 15 inwardly moves through the portion of pressing against
As disc spring gland 7 moves and collet 3 is in releasing orientation, workpiece can be loaded in collet 3.
After workpiece loads, motor 8 inverts, and ball head 12 drives shift fork 15 to reset, and makes to stir ring 17 and bearing 2 16 together
Reset position and disengaged with disc spring gland 7, while ring 17 is stirred and bearing 2 16 resets, disc spring gland 7 is also in disc spring
Moved out under the resilient force of group 6, until workpiece is clamped, the elastic force that disc spring group 6 applies disc spring gland 7 to draw
Pipe 4 keeps tension, and collet 3 keeps the clamping to workpiece.In 2 rotation process of main shaft, trombone slide 4 also can be transported circumferentially
It is dynamic to drive collet 3 to clamp or unclamp, in shaft rotation process, also clamping and workpiece can be removed.
Embodiment two：
Technical solution in the present embodiment and the technical solution in embodiment one are essentially identical, and difference is, such as Fig. 5
Shown, the lever transmission mechanism in the present embodiment is not provided with stirring ring 17 and bearing 2 16, and by shift fork 15 close to dish
One end of spring gland 7 sets roller 23, and roller 23 can be resisted against disc spring gland 7 and stretch out on the end face of installation cavity 51.
The operation principle of lever transmission mechanism is：When motor 8 rotates forward, inwardly movement is resisted against the roller 23 on shift fork 15
On the end face of disc spring gland 7, and the also inwardly movement of disc spring gland 7 is driven by thrust；When motor 8 inverts, 12 band of ball head
Dynamic shift fork 15 resets, and disc spring gland 7 also moves out under the resilient force of disc spring group 6, and workpiece is clamped rear disc spring gland 7
It can not continue to move, after shift fork 15 resets, roller 23 departs from the end face of disc spring gland 7.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (9)
1. hollow electromechanics clamping device, lathe include main spindle box (1) and the main shaft (2) of inner hollow, this clamping device includes bullet
Spring collet (3) and trombone slide (4), the trombone slide (4) are threaded through in main shaft (2), the collet (3) and one end of trombone slide (4)
It is threadedly coupled, it is characterised in that the trombone slide (4) is hollow structure and is connected with the endoporus of collet (3), the trombone slide
(4) to stretch out on the other end of main shaft (2) and be provided with disc spring group assembly (5), the disc spring group assembly (5) is fixed on main shaft (2),
The disc spring group assembly (5) includes the disc spring group (6) being arranged in the internal installation cavity (51) of disc spring group assembly (5), the installation
Disc spring gland (7) is provided with chamber (51), described disc spring gland (7) one end is resisted against in disc spring group (6), and the other end stretches out installation
Chamber (51) simultaneously makes trombone slide (4) band with trombone slide (4) axially position, the resilient force of the disc spring group (6) on disc spring gland (7)
Dynamic collet (3) clamps；This clamping device further includes motor (8), and the motor (8) is by lead screw transmission mechanism by motor
(8) rotation of output shaft (81) is converted into linear motion and drives disc spring gland (7) to be axially moved by lever transmission mechanism
Overcoming the elastic force of disc spring group (6) makes trombone slide (4) Axially moving belt move collet (3) release, the lever transmission mechanism bag
Shift fork (15) is included, the part that the disc spring gland (7) stretches out installation cavity (51) is arranged with bearing two (16), the bearing two (16)
Outer ring be arranged with and stir ring (17), the shift fork (15) and to stir the hinged one end of ring (17) be semiorbicular connecting portion one
(151), described stir has cylindrical groove (171) on ring (17), and the both sides of the connecting portion one (151) pass through clamp screw respectively
Nail cylinder (19) and the cylindrical groove (171) stirred on ring (17) coordinate, and the connecting portion one (151) can be justified around holding screw
Column (19) rotates.
2. hollow electromechanical clamping device according to claim 1, it is characterised in that the lead screw transmission mechanism includes inside
Base (9) with mounting hole (91), the motor (8) are fixed on base (9), and shaft coupling is provided with the mounting hole (91)
Device (10), screw (11) and ball head (12), the output shaft (81) of the motor (8) stretch into mounting hole (91) and pass through shaft coupling
Device (10) is connected with one end of screw (11), and the other end of the screw (11) is coordinated with ball head (12) by screw-driven,
The ball head (12) is also circumferentially positioned by the guide pad (27) on base (9).
3. hollow electromechanical clamping device according to claim 2, it is characterised in that be provided with axis in the mounting hole (91)
One (13) are held, a locking nut (14) has been connected through a screw thread on the screw (11), the locking nut (14) is resisted against axis
On the end face for holding one (13).
4. hollow electromechanical clamping device according to claim 2, it is characterised in that described disc spring gland (7) the inner has
For bearing two (16) against butting section, the outer ring tight fit for stirring ring (17) and bearing two (16), on the base (9)
With yoke bracket (18), it is hinged in the middle part of the shift fork (15) and shift fork (15) rotation is formed on above-mentioned yoke bracket (18)
Fulcrum, one end of the shift fork (15) are connected by bulb connection structure with ball head (12), and the other end, which is hinged on, stirs ring
(17) on.
5. hollow electromechanical clamping device according to claim 4, it is characterised in that the shift fork (15) and ball head (12)
The one end being connected is to have in rod-shaped connecting portion two (152), the connecting portion two (152) close to the end of ball head (12)
Spherical link slot, the end of the ball head (12) is bulb (121), and the bulb (121) is located in link slot, and bulb
(121) sphere is close on the inner wall of link slot.
6. hollow electromechanical clamping device according to any one of claim 1 to 5, it is characterised in that on the trombone slide (4)
Adjusting nut (20) is threaded with, the adjusting nut (20) is fixedly connected with disc spring gland (7).
7. hollow electromechanical clamping device according to any one of claim 1 to 5, it is characterised in that the disc spring group is total
Disc spring assembly housing (52), housing flange disk (53), disc spring group conduit (54) are further included into (5), the housing flange disk (53) is solid
It is scheduled on main shaft (2), the disc spring group conduit (54) is set in trombone slide (4) outside and, the dish fixed with housing flange disk (53)
Spring assembly housing (52) is fixed on housing flange disk (53) and forms the installation cavity (51), the dish with disc spring group conduit (54)
Spring assembly housing (52) end has the opening that installation cavity (51) is stretched out for disc spring gland (7), has energy on the disc spring gland (7)
It is resisted against the gear edge in open inner ends face.
8. hollow electromechanical clamping device according to claim 7, it is characterised in that have on the disc spring assembly housing (52)
Circumferentially arranged compensating groove (521), the cross section of the compensating groove (521) is dovetail-shape, by embedded in compensating groove (521)
If at least one balance weight (21) can adjust the center of gravity of main shaft (2), each balance weight (21) include cell block one (211) and
After cell block two (212), cell block one (211) and cell block two (212) split balance weight (21) can be made to be stuck in compensating groove
(521) locked in and by fixing screws (22).
9. hollow electromechanical clamping device according to any one of claim 1 to 5, it is characterised in that the motor (8) is
Three-phase miniature decelerating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747780.5A CN106141711B (en) | 2016-08-26 | 2016-08-26 | Hollow electromechanics clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747780.5A CN106141711B (en) | 2016-08-26 | 2016-08-26 | Hollow electromechanics clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106141711A CN106141711A (en) | 2016-11-23 |
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| CN106392691A (en) * | 2016-12-08 | 2017-02-15 | 浙江达峰汽车技术有限公司 | Pipe fitting rotational clamping device |
| CN110052850A (en) * | 2019-01-14 | 2019-07-26 | 科德数控股份有限公司 | A kind of clamping device of rotary table with increase micro-displacement detection |
| CN109877617A (en) * | 2019-03-29 | 2019-06-14 | 奥美森智能装备股份有限公司 | A kind of clamp die mechanism |
| CN111922687A (en) * | 2020-07-21 | 2020-11-13 | 合肥巨一动力***有限公司 | Fixed-mounting-free fixed-torsion tool for front end cover of driving motor |
| CN112720298B (en) * | 2020-12-23 | 2022-09-13 | 扬州曙光光电自控有限责任公司 | Electrodynamic type clamping device based on belleville spring |
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