CN108480802A - A kind of electrolytic machine tool main shaft straight line-rotary composite movement device - Google Patents
A kind of electrolytic machine tool main shaft straight line-rotary composite movement device Download PDFInfo
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- CN108480802A CN108480802A CN201810311954.2A CN201810311954A CN108480802A CN 108480802 A CN108480802 A CN 108480802A CN 201810311954 A CN201810311954 A CN 201810311954A CN 108480802 A CN108480802 A CN 108480802A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H2400/00—Moving mechanisms for tool electrodes
- B23H2400/10—Moving mechanisms for tool electrodes for rotating the electrode
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Abstract
The invention discloses a kind of electrolytic machine tool main shaft straight line rotary composite movement devices, belong to machine tool chief axis field.The composite motion device of the present invention, its input shaft and main shaft, which rotate coaxially, to be installed in babinet, one end of input shaft has a piston cylinder, one end of main shaft has one and the above-mentioned matched piston of piston cylinder, the cylinder side wall of piston cylinder is equipped with two groups of small oil tanks, and the cam contour of overhead cam and the cam contour of lower cam offset with the small oil tank piston rod of corresponding small oil tank respectively.Input shaft is dexterously connect with main shaft using piston cylinder structure by the present invention, realize that the variation in hydraulic oil space in piston cylinder realizes that main shaft up and down reciprocatingly moves along a straight line using cam structure simultaneously, and with input shaft rotary motion, one group of driving motor is only needed to can be driven main shaft rotation and linear motion, linear motion amplitude is i.e. controllable by cam locus, simple and ingenious structure, control is simple and flexible and convenient, greatly meets the movement needs of electrolytic machine tool main shaft.
Description
Technical field
The present invention relates to a kind of composite-motion mechanisms, more specifically to a kind of electrolytic machine tool main shaft straight line-
Rotary composite movement device.
Background technology
In field of machining technology, generally require one kind can rotary motion but also while regularly realize straight line it is past
The mechanism moved again, for example, in being electrolysed drilling processing, the main shaft of electrolytic machine tool usually require to rotate and
Along main-shaft axis direction linear reciprocating motion, traditional motion is multiple using rotary drive mechanism and the mechanism that pumps
It closing and realizes, but design causes complicated in this way, electrolytic machining set bed structure is too fat to move, needs that electric rotating machine and Z axis motor is arranged,
Cost of manufacture is high, and maintenance cost is high.Also, since it cannot be driven using single power, mechanism structure is complicated, volume is big,
It is difficult to meet regularly straight reciprocating motion and rotary motion simultaneously for the occasions such as small-sized, miniature.
Through retrieval, in the prior art, also there is straight line-rotary composite movement mechanism to occur, China Patent No.
ZL201720293900.9, authorized announcement date are on 2 16th, 2018, and invention and created name is：One kind quickly can be passed accurately
The mechanism of straight line and rotary composite movement is passed, this application is related to one kind being capable of fast and accurate transfer straight line and rotary composite movement
Mechanism, a rotary-type servo motor driving ball-screw makes spigot nut do straight line along the pilot sleeve with straight-line groove
Movement, this rotary-type servo motor is fixed by fixed frame and pilot sleeve, and is built in quill, quill and guide sleeve
Cylinder is fixed, and another rotary-type servo motor drive sleeve axis is rotated, and is run by two rotary-type servo motor of control
When relevant parameter, keep straight line synchronous with rotary motion or alternately regular operation, reach fast and accurate transfer compound motion
Purpose.The patent application case realizes straight line and rotary composite movement using two groups of rotary-type servo motor combinations, needs to distinguish
Two groups of servo motors are controlled to realize that straight line is orderly carried out with rotary composite movement, controls complex, cost of manufacture
It is high.
For another example Chinese Patent Application No. 201610419438.2, data of publication of application are September in 2016 21, innovation and creation name
Referred to as：A kind of rotational alignment combined type main shaft driving device, includes at least main shaft, and the rotation in front-end of spindle is arranged in device engine base
Turn drive module, the straight-line feed module in rear-end of spindle is set；Main shaft is arranged on the central shaft of device engine base.This application
The driving of main shaft rotational alignment can be realized by rotating drive module, realize that main shaft carries out linear drives by straight-line feed module,
The two can be carried out at the same time, and also can individually be carried out；But this application is substantially in rotational alignment combined type main shaft driving device
It is integrated with electric rotating machine and linear motor, it is complicated, it also needs to control electric rotating machine and linear motor respectively, control
Make complex, manufacture difficulty and cost of manufacture are higher, and practicability is poor.
Invention content
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the straight line of existing electrolytic machine tool main shaft-rotary composite movement device to there is knot
The deficiencies of structure is complicated, control difficulty is big, provides a kind of electrolytic machine tool main shaft straight line-rotary composite movement device, uses
Input shaft is dexterously connect with main shaft using piston cylinder structure by technical scheme of the present invention, while being realized using cam structure
The variation in hydraulic oil space realizes that main shaft up and down reciprocatingly moves along a straight line in piston cylinder, and with input shaft rotary motion, it is only necessary to
One group of driving motor can be driven main shaft rotation and linear motion, and linear motion amplitude is i.e. controllable by cam locus, and structure is set
Meter is simple ingenious, and control is simple and flexible and convenient, greatly meets the movement needs of electrolytic machine tool main shaft.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
The present invention a kind of electrolytic machine tool main shaft straight line-rotary composite movement device, including babinet, input shaft,
Main shaft, lower cam, overhead cam and small oil tank, the input shaft and main shaft are rotated coaxially and are installed in babinet, the input
One end of axis has a piston cylinder, and one end of the main shaft has one and the above-mentioned matched piston of piston cylinder, described
Spline structure is additionally provided between input shaft and main shaft, piston cylinder is divided into closed rodless cavity and rod chamber, institute by the piston
The cylinder side wall for the piston cylinder stated be equipped with two groups of small oil tanks communicated respectively with rodless cavity and rod chamber, the rodless cavity and
Hydraulic oil is full of in rod chamber, the overhead cam and lower cam are individually fixed in babinet, and overhead cam and lower cam is convex
Wheel profile all has not journey profile and impulse stroke profile, the cam contour of the overhead cam and the small oil tank for being connected to rodless cavity
Small oil tank piston rod offset, the small oil tank piston rod phase of the cam contour of the lower cam and the small oil tank for being connected to rod chamber
It supports；
When the small oil tank piston rod of the small oil tank of connection rodless cavity is in the impulse stroke profile of overhead cam, it is communicated with bar
The small oil tank piston rod of the small oil tank of chamber stops journey profile just at lower cam；When the small oil tank of the small oil tank of connection rodless cavity
Piston rod is in when stopping journey profile of overhead cam, is connected to the small oil tank piston rod of the small oil tank of rod chamber just at lower cam
Impulse stroke profile.
Further, the small oil tank includes small oil tank cylinder body and small oil tank piston rod, the small oil tank cylinder body
Be connected through a screw thread with the piston cylinder of input shaft, the small oil tank piston rod pass through after small oil tank cylinder body with lower cam and convex
The cam contour of wheel matches.
Further, sliding slot is all had on the cam contour of the lower cam and overhead cam, the small oil tank
Small oil tank piston rod end is equipped with and the above-mentioned matched ball of sliding slot.
Further, the overhead cam is identical with the cam profile of lower cam, stops journey profile and working line
Journey profile is semicircle, and not journey profile and impulse stroke profile junction is seamlessly transitted using arc.
Further, the cam contour phase of the overhead cam and lower cam in babinet is identical, with overhead cam and
Installation site of the matched two groups of small oil tanks of lower cam on the piston cylinder of input shaft is in mutually 180 °.
Further, the input shaft is installed on by bearing of input shaft on the upper end cover of babinet, the upper end
Cover the bearing cap being additionally provided with for fixing bearing of input shaft；The main shaft is installed on by thrust ball bearing on babinet, and
It is additionally provided with the axle sleeve being sheathed on main shaft between thrust ball bearing and the piston cylinder end cap of input shaft.
Further, the spline structure includes the rotation stop ring being installed in the piston cylinder of input shaft, and described stops
Rotation stop groove is equipped in change, the main shaft is equipped with and the above-mentioned matched rotation stop platform of rotation stop groove.
Further, it is also installed on water flowing ring on the babinet, a circle water flowing ring is equipped on the inside of the water flowing ring
Slot, the water flowing annular groove are connected with the water channel on main shaft, and the both sides that water flowing annular groove is located on the inside of the water flowing ring are also set
There is sealing ring mounting groove, the sealing ring coordinated with main shaft seal is equipped in the sealing ring mounting groove.
Further, the bottom end cover of the babinet is equipped with and the matched straight-line ball flange of main shaft.
Further, the course of work is as follows：The input shaft rotation drives main shaft rotation, while two groups of small oil tanks exist
Carry out driving spindle with resultant motion in overhead cam and lower cam to move up and down.
3. advantageous effect
Using technical solution provided by the invention, compared with existing known technology, there is following remarkable result：
(1) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention, one end of input shaft
With a piston cylinder, one end of main shaft has one and the above-mentioned matched piston of piston cylinder, is set on the cylinder side wall of piston cylinder
There are two groups of small oil tanks communicated respectively with rodless cavity and rod chamber, hydraulic oil is full of in rodless cavity and rod chamber, overhead cam is under
Cam is individually fixed in babinet, and overhead cam and the cam contour of lower cam all have not journey profile and impulse stroke profile,
The cam contour of overhead cam offsets with the small oil tank piston rod for the small oil tank for being connected to rodless cavity, the cam contour of lower cam be connected to
The small oil tank piston rod of the small oil tank of rod chamber offsets；When the small oil tank piston rod of the small oil tank of connection rodless cavity is in overhead cam
Impulse stroke profile when, be connected to the small oil tank piston rod of the small oil tank of rod chamber and stop journey profile just at lower cam；When
The small oil tank piston rod for being connected to the small oil tank of rodless cavity is in when stopping journey profile of overhead cam, is connected to the small of the small oil tank of rod chamber
Impulse stroke profile of the cylinder piston rod just at lower cam；Dexterously input shaft and main shaft are connected using piston cylinder structure
It connects, while realizing that the variation in hydraulic oil space in piston cylinder realizes that main shaft up and down reciprocatingly moves along a straight line using cam structure, and
Due to being equipped with spline structure between input shaft and main shaft, main shaft is with input shaft rotary motion, it is only necessary to which one group of driving motor is
Can driving spindle rotation and linear motion, linear motion amplitude is i.e. controllable by cam locus, and structure design is simply ingenious, control
It is simple and flexible and convenient, greatly meet the movement needs of electrolytic machine tool main shaft；
(2) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention, small oil tank includes small
The piston cylinder of cylinder block and small oil tank piston rod, small oil tank cylinder body and input shaft is connected through a screw thread, and small oil tank piston rod is worn
It is matched with the cam contour of lower cam and overhead cam after too small cylinder block, it is simple in structure, it is easy for installation；Also, lower cam
With all have sliding slot on the cam contour of overhead cam, the small oil tank piston rod end of small oil tank is equipped with to be matched with above-mentioned sliding slot
Ball, coordinated using ball and cam race, reduce frictional resistance, power transmission efficiency is high, and transmission is more reliable and more stable；
(3) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention, overhead cam are convex under
The cam profile of wheel is identical, and it is semicircle to stop journey profile and impulse stroke profile, and not journey profile and impulse stroke
Profile junction is seamlessly transitted using arc, and using above-mentioned cam contour, the circle of main axis one is of reciprocating vibration simultaneously primary, meets
The movement of electrolytic machine tool main shaft needs, and is moved up and down come driving spindle using hydraulic pressure, with hydraulicdriven all
More advantages；
(4) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention, overhead cam are convex under
Take turns that cam contour phase in babinet is identical, with the matched two groups of small oil tanks of overhead cam and lower cam input shaft piston
Installation site on cylinder is in mutually 180 °, and arrangement of two groups of small oil tanks on piston cylinder is more reasonable, makes the rotation of piston cylinder more
Steadily, the shake of straight line-rotary composite movement device is reduced；
(5) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention, input shaft passes through defeated
Enter axle bearing to be installed on the upper end cover of babinet, the bearing cap for fixing bearing of input shaft is additionally provided on upper end cover；Main shaft is logical
It crosses thrust ball bearing to be installed on babinet, and is additionally provided between thrust ball bearing and the piston cylinder end cap of input shaft and is sheathed on main shaft
On axle sleeve, entire straight line-rotary composite movement apparatus structure simple and compact, stable movement is reliable；Spline structure includes installation
In being equipped with rotation stop groove in the rotation stop ring in the piston cylinder of input shaft, rotation stop ring, main shaft is equipped with and is matched with above-mentioned rotation stop groove
Rotation stop platform, the production is simple and convenient for the spline structure, convenient for assembly；The bottom end cover of babinet is equipped with and the matched straight line of main shaft
Ball flange further improves the stability of main shaft rotation and linear motion；
(6) a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the invention is also installed on babinet
A circle water flowing annular groove is equipped on the inside of water flowing ring, water flowing ring, water flowing annular groove is connected with the water channel on main shaft, position on the inside of water flowing ring
It is additionally provided with sealing ring mounting groove in the both sides of water flowing annular groove, the sealing ring coordinated with main shaft seal is equipped in sealing ring mounting groove,
Meet the needs that electrolytic machine tool main shaft is passed through electrolyte.
Description of the drawings
Fig. 1 is that a kind of sectional structure of electrolytic machine tool main shaft straight line-rotary composite movement device of the present invention shows
It is intended to；
Fig. 2 is the structural schematic diagram of the small oil tank in the present invention；
Fig. 3 is the structural schematic diagram of the lower cam in the present invention；
Fig. 4 is the structural schematic diagram of the main shaft in the present invention；
Fig. 5 is the structural schematic diagram of the rotation stop ring in the present invention；
Fig. 6 is the structural schematic diagram of the water flowing ring in the present invention.
Label declaration in schematic diagram：
1, main shaft；1-1, rotation stop platform；2, straight-line ball flange；3, bottom end cover；4, babinet；5, axle sleeve；6, end cap；7, convex under
Wheel；7-1, stop journey profile；7-2, impulse stroke profile；8, piston packing；9, overhead cam；10, bearing of input shaft；11, it inputs
Axis；12, bearing cap；13, upper end cover；14, small oil tank；14-1, small oil tank cylinder body；14-2, small oil tank piston rod；14-3, ball；
15, hydraulic oil；16, rotation stop ring；16-1, rotation stop groove；17, end cap seal circle；18, thrust ball bearing；19, water flowing ring；19-1, lead to
Water ring slot；19-2, outlet pass；19-3, sealing ring mounting groove.
Specific implementation mode
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
In conjunction with shown in Fig. 1 and Fig. 2, a kind of electrolytic machine tool main shaft of the present embodiment is filled with straight line-rotary composite movement
It sets, including babinet 4, input shaft 11, main shaft 1, lower cam 7, overhead cam 9 and small oil tank 14, babinet 4 is compound as straight line-rotation
The main part of telecontrol equipment is used for installing each parts, and input shaft 11 can be connect with external motor, in external motor
Driving under rotate, input shaft 11 and main shaft 1 are rotated coaxially and are installed in babinet 4, and one end of input shaft 11 has one
Piston cylinder, piston cylinder can be integrally formed at one end end of input shaft 11, and one end of main shaft 1 has one and above-mentioned piston cylinder phase
The piston of cooperation, the piston can slide up and down in piston cylinder, and piston packing 8 is additionally provided on piston, input shaft 11 with
Spline structure is additionally provided between main shaft 1, the rotation of input shaft 11 can drive 1 synchronous rotary of main shaft.Above-mentioned piston is by piston cylinder
It is divided into closed rodless cavity and rod chamber, the cylinder side wall of piston cylinder is equipped with two groups and is communicated respectively with rodless cavity and rod chamber
Hydraulic oil 15 is full of in small oil tank 14, rodless cavity and rod chamber, 14 stretching motion of small oil tank is the rodless cavity of changeable piston cylinder
With the hydraulic oil space in rod chamber, so as to driving spindle 1 in piston cylinder stretching motion.Overhead cam 9 and lower cam 7 are divided
It is not fixed in babinet 4, and overhead cam 9 and the cam contour of lower cam 7 all have not journey profile 7-1 and impulse stroke profile 7-
2, wherein impulse stroke profile 7-2 are the cam contour for the small oil tank piston rod 14-2 for compressing small oil tank 14, not journey profile 7-1
As release small oil tank 14 small oil tank piston rod 14-2 cam contour, the cam contour of overhead cam 9 be connected to rodless cavity
The small oil tank piston rod 14-2 of small oil tank 14 offsets, the small oil of the cam contour of lower cam 7 and the small oil tank 14 for being connected to rod chamber
Cylinder piston rod 14-2 offsets；Also, when the small oil tank piston rod 14-2 of the small oil tank 14 of connection rodless cavity is in the work of overhead cam 9
When making lift profile 7-2, the small oil tank piston rod 14-2 for being connected to the small oil tank 14 of rod chamber stops journey wheel just at lower cam 7
Wide 7-1；It is in when stopping journey profile 7-1 of overhead cam 9, connection when being connected to the small oil tank piston rod 14-2 of small oil tank 14 of rodless cavity
Impulse stroke profile 7-2s of the small oil tank piston rod 14-2 of the small oil tank 14 of rod chamber just at lower cam 7.In this way, input
The rotation of axis 11 drives main shaft 1 to rotate, while the rotary motion on overhead cam 9 and the cam contour of lower cam 7 of two groups of small oil tanks 14,
The small oil tank piston rod 14-2 alternate compressions of two groups of small oil tanks 14 and stretching, to drive the main shaft 1 in 11 piston cylinder of input shaft
Piston up-down.A kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the present embodiment, dexterously will be defeated
Enter axis 11 to connect using piston cylinder structure with main shaft 1, while realizing the variation in hydraulic oil space in piston cylinder using cam structure
Realize that main shaft up and down reciprocatingly moves along a straight line, and due to being equipped with spline structure between input shaft 11 and main shaft 1, main shaft 1 is with input
The rotary motion together of axis 11, it is only necessary to which one group of driving motor can be driven main shaft rotation and linear motion, and linear motion amplitude is by convex
Wheel track can control, and structure design is simply ingenious, and control is simple and flexible and convenient, greatly meets electrolytic machine tool master
The movement of axis needs.
Shown in hookup 2, in the present embodiment, small oil tank 14 includes small oil tank cylinder body 14-1 and small oil tank piston rod 14-
One end of 2, small oil tank cylinder body 14-1 are machined with external screw thread, and the piston cylinder side wall of input shaft 11 is threaded hole, small oil tank cylinder
Body 14-1 and the piston cylinder of input shaft 11 are connected through a screw thread, and small oil tank piston rod 14-2 and small oil tank cylinder body 14-1 passes through piston
Cooperation, and small oil tank piston rod 14-2 matches after small oil tank cylinder body 14-1 with the cam contour of lower cam 7 and overhead cam 9
It closes, when small oil tank piston rod 14-2 is by cam extrusion, the piston cylinder space of small oil tank piston rod 14-2 compression input shafts 11, from
And 1 stretching motion of driving spindle.Above-mentioned small oil tank 14 is simple in structure, easy for installation.In order to ensure small oil tank piston rod 14-2
It is moved on cam more smooth, sliding slot, the small oil of small oil tank 14 is all had on the cam contour of lower cam 7 and overhead cam 9
The ends cylinder piston rod 14-2 be equipped with the above-mentioned matched ball 14-3 of sliding slot, coordinated using ball 14-3 and cam race,
Frictional resistance is reduced, power transmission efficiency is high, and transmission is more reliable and more stable.
As shown in figure 3, in the present embodiment preferably, overhead cam 9 is identical with the cam profile of lower cam 7, stops
Journey profile 7-1 and impulse stroke profile 7-2 is semicircle, and not journey profile 7-1 and the junctions impulse stroke profile 7-2 use
Arc seamlessly transits, and using above-mentioned cam contour, one circle of the rotation of main shaft 1 is of reciprocating vibration simultaneously primary, meets electrolytic machining set
The movement of bed main shaft needs, and is moved up and down come driving spindle 1 using hydraulic pressure, has many advantages, such as hydraulicdriven.It is above-mentioned
Overhead cam 9 and the both ends of lower cam 7 be additionally provided with mounting ear (as shown in Figure 1), overhead cam 9 and lower cam 7 are solid by screw
It is scheduled in babinet 4.In addition, for the ease of the installation of two groups of small oil tanks 14, in the present embodiment preferably, overhead cam 9 is convex under
Cam contour phase of the wheel 7 in babinet 4 is identical, with 7 matched two groups of small oil tanks 14 of overhead cam 9 and lower cam in input shaft
Installation site on 11 piston cylinder is in mutually 180 °, and arrangement of two groups of small oil tanks 14 on piston cylinder is more reasonable, makes piston cylinder
Rotation it is more steady, reduce the shake of straight line-rotary composite movement device.
It returns shown in Fig. 1, a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the present embodiment,
Input shaft 11 is installed on by bearing of input shaft 10 on the upper end cover 13 of babinet 4, is additionally provided on upper end cover 13 for fixed input
The bearing cap 12 of axle bearing 10；Main shaft 1 is installed on by thrust ball bearing 18 on babinet 4, and thrust ball bearing 18 and input shaft
It is additionally provided with the axle sleeve 5 being sheathed on main shaft 1 between 11 piston cylinder end cap 6, makes entire straight line-rotary composite movement apparatus structure
Simple and compact, stable movement are reliable.Above-mentioned spline structure includes the rotation stop ring 16 being installed in the piston cylinder of input shaft 11, only
Rotation stop groove 16-1 (as shown in Figure 5) is equipped in change 16, main shaft 1 is equipped with and the above-mentioned matched rotation stop platforms of rotation stop groove 16-1
Planar structure can be used in 1-1 (as shown in Figure 4), above-mentioned rotation stop groove 16-1, and rotation stop platform 1-1 also uses matched planar junction
Structure, processing and fabricating are simple and convenient.The piston cylinder end cap 6 of input shaft 11, which is sealed with main shaft 1 by end cap seal circle 17, to be coordinated, and can be incited somebody to action
Rotation stop ring 16 is installed on the end cap 6 of piston cylinder, and ensures that the cooperation stroke of rotation stop groove 16-1 and rotation stop platform 1-1 is more than main shaft
1 up and down motion stroke.In order to ensure that the movement of main shaft 1 is more steady, the bottom end cover 3 of babinet 4 is equipped with matched with main shaft 1
Straight-line ball flange 2 further improves the stability of main shaft 1 rotation and linear motion.In addition, in order to meet electrolytic machining set
Bed main shaft is passed through the needs of electrolyte, and water flowing ring 19 is also equipped on babinet 4, and the both sides of water flowing ring 19 are equipped with mounting ear, lead to
It crosses bolt water flowing ring 19 is fixed on babinet 4；As shown in fig. 6,19 inside of water flowing ring is equipped with a circle water flowing annular groove 19-1, water flowing
Annular groove 19-1 is connected with the water channel on main shaft 1, and the outlet pass 19-2 of a connection water flowing annular groove 19-1 is additionally provided on water flowing ring 19,
19 inside of water flowing ring is additionally provided with sealing ring mounting groove 19-3 positioned at the both sides of water flowing annular groove 19-1, is set in sealing ring mounting groove 19-3
There is the sealing ring with the sealing cooperation of main shaft 1.
It is shown in Figure 1, a kind of electrolytic machine tool main shaft straight line-rotary composite movement device of the present embodiment,
The course of work is as follows：The rotation of input shaft 11 drives main shaft 1 to rotate, while two groups of small oil tanks 14 are matched in overhead cam 9 and lower cam 7
Resultant motion carrys out the up and down motion of driving spindle 1.Specifically, input shaft 11 rotates under external drive motors drive, pass through rotation stop
Structure driving spindle 1 rotates；While input shaft 11 rotates, two groups of small oil tanks 14 thereon are on corresponding cam
Rotation, the small oil tank piston rod 14-2 of two groups of small oil tanks 14 is alternately flexible on overhead cam 9 and the cam contour of lower cam 7 at this time
Movement realizes the rotation of 1 side of main shaft so that 15 driving spindle 1 of hydraulic oil in the piston cylinder of input shaft 11 back and forth moves up and down
Turn the compound motion that side up and down reciprocatingly vibrates.
The present invention a kind of electrolytic machine tool main shaft straight line-rotary composite movement device, dexterously by input shaft with
Main shaft is connected using piston cylinder structure, while realizing that the variation in hydraulic oil space in piston cylinder is realized on main shaft using cam structure
Lower linear reciprocating motion, and due to being equipped with spline structure between input shaft and main shaft, main shaft with input shaft rotary motion,
One group of driving motor is only needed to can be driven main shaft rotation and linear motion, linear motion amplitude is i.e. controllable by cam locus, knot
Structure design is simple ingenious, and control is simple and flexible and convenient, greatly meets the movement needs of electrolytic machine tool main shaft.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, without creatively designing and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device, it is characterised in that：Including babinet (4), input
Axis (11), main shaft (1), lower cam (7), overhead cam (9) and small oil tank (14), the input shaft (11) and main shaft (1) are coaxial
It is rotatablely installed in babinet (4), there is a piston cylinder, one end of the main shaft (1) to have for one end of the input shaft (11)
There are one and the matched piston of above-mentioned piston cylinder, is additionally provided with spline structure between the input shaft (11) and main shaft (1), institute
Piston cylinder is divided into closed rodless cavity and rod chamber by the piston stated, and the cylinder side wall of the piston cylinder is equipped with two groups of difference
Hydraulic oil (15) is full of in the small oil tank (14) communicated with rodless cavity and rod chamber, the rodless cavity and rod chamber, it is described
Overhead cam (9) and lower cam (7) are individually fixed in babinet (4), and overhead cam (9) and the cam contour of lower cam (7) have
Have not journey profile (7-1) and an impulse stroke profile (7-2), the cam contour of the overhead cam (9) be connected to the small of rodless cavity
The small oil tank piston rod (14-2) of oil cylinder (14) offsets, the cam contour of the lower cam (7) and the small oil for being connected to rod chamber
The small oil tank piston rod (14-2) of cylinder (14) offsets；
When the small oil tank piston rod (14-2) of the small oil tank (14) of connection rodless cavity is in the impulse stroke profile of overhead cam (9)
When (7-2), the small oil tank piston rod (14-2) for being connected to the small oil tank (14) of rod chamber stops journey profile just at lower cam (7)
(7-1)；When the small oil tank piston rod (14-2) of the small oil tank (14) of connection rodless cavity is in the not journey profile (7- of overhead cam (9)
1) when, it is connected to impulse stroke wheel of the small oil tank piston rod (14-2) just at lower cam (7) of the small oil tank (14) of rod chamber
Wide (7-2).
2. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 1, feature exist
In：The small oil tank (14) includes small oil tank cylinder body (14-1) and small oil tank piston rod (14-2), the small oil tank cylinder body
(14-1) and the piston cylinder of input shaft (11) are connected through a screw thread, and the small oil tank piston rod (14-2) passes through small oil tank cylinder body
(14-1) is matched with the cam contour of lower cam (7) and overhead cam (9) afterwards.
3. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 2, feature exist
In：Sliding slot, the small oil tank of the small oil tank (14) are all had on the cam contour of the lower cam (7) and overhead cam (9)
The end piston rod (14-2) is equipped with and the above-mentioned matched ball of sliding slot (14-3).
4. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 1 or 2 or 3,
It is characterized in that：The overhead cam (9) is identical with the cam profile of lower cam (7), stops journey profile (7-1) and working line
Journey profile (7-2) is semicircle, and not journey profile (7-1) and the junction impulse stroke profile (7-2) are smoothed using arc
It crosses.
5. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 4, feature exist
In：The overhead cam (9) is identical with cam contour phase of the lower cam (7) in babinet (4), with overhead cam (9) and under it is convex
It is in 180 ° to take turns installation site of (7) the matched two groups of small oil tanks (14) on the piston cylinder of input shaft (11) mutually.
6. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 5, feature exist
In：The input shaft (11) is installed on by bearing of input shaft (10) on the upper end cover (13) of babinet (4), the upper end cover
(13) bearing cap (12) for fixing bearing of input shaft (10) is additionally provided on；The main shaft (1) passes through thrust ball bearing
(18) it is installed on babinet (4), and is additionally provided with and is arranged between thrust ball bearing (18) and the piston cylinder end cap (6) of input shaft (11)
In the axle sleeve (5) on main shaft (1).
7. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 6, feature exist
In：The spline structure includes the rotation stop ring (16) being installed in the piston cylinder of input shaft (11), the rotation stop ring (16)
Interior to be equipped with rotation stop groove (16-1), the main shaft (1) is equipped with and the above-mentioned matched rotation stop platform (1- of rotation stop groove (16-1)
1)。
8. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 7, feature exist
In：It is also installed on water flowing ring (19) on the babinet (4), a circle water flowing annular groove (19- is equipped on the inside of the water flowing ring (19)
1), the water flowing annular groove (19-1) is connected with the water channel on main shaft (1), and water flowing ring is located on the inside of the water flowing ring (19)
The both sides of slot (19-1) are additionally provided with sealing ring mounting groove (19-3), are equipped in the sealing ring mounting groove (19-3) and main shaft
(1) sealing ring of sealing cooperation.
9. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 8, feature exist
In：The bottom end cover (3) of the babinet (4) is equipped with and the matched straight-line ball flange (2) of main shaft (1).
10. a kind of electrolytic machine tool main shaft straight line-rotary composite movement device according to claim 1, feature
It is：The course of work is as follows：Input shaft (11) rotation drives main shaft (1) to rotate, while two groups of small oil tanks (14) are upper
Carry out driving spindle (1) with resultant motion in cam (9) and lower cam (7) to move up and down.
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| CN201810311954.2A CN108480802B (en) | 2018-04-09 | 2018-04-09 | A kind of electrolytic machine tool main shaft straight line-rotary composite movement device |
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| CN109352642A (en) * | 2018-12-03 | 2019-02-19 | 吉林大学 | A kind of planar obit simulation generating mechanism |
| CN109570661A (en) * | 2019-01-15 | 2019-04-05 | 常州工学院 | A kind of cathode for electrochemical machining vibration device |
| CN109916556A (en) * | 2019-04-11 | 2019-06-21 | 华能国际电力股份有限公司 | A kind of dynamic static calibration system of portable pressure transducer |
| CN109958734A (en) * | 2019-02-13 | 2019-07-02 | 徐超 | Piston rod with guiding |
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| CN108480802B (en) | 2019-08-13 |
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