CN100479982C - Automatic pallet exchanger of machine tool - Google Patents

Automatic pallet exchanger of machine tool Download PDF

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Publication number
CN100479982C
CN100479982C CNB2005101350681A CN200510135068A CN100479982C CN 100479982 C CN100479982 C CN 100479982C CN B2005101350681 A CNB2005101350681 A CN B2005101350681A CN 200510135068 A CN200510135068 A CN 200510135068A CN 100479982 C CN100479982 C CN 100479982C
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CN
China
Prior art keywords
apc
driving shaft
arm
excircle
main body
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Expired - Fee Related
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CNB2005101350681A
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Chinese (zh)
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CN1796045A (en
Inventor
裴宰庸
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Hyundai Doosan Infracore Co Ltd
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Doosan Infracore Co Ltd
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Publication of CN1796045A publication Critical patent/CN1796045A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1431Work holder changers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/001Arrangements compensating weight or flexion on parts of the machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/02Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q2716/00Equipment for precise positioning of tool or work into particular locations
    • B23Q2716/08Holders for tools or work comprising a divider or positioning devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Workpieces (AREA)
  • Machine Tool Units (AREA)

Abstract

Disclosed herein is an automatic pallet exchanger of a machine tool, which can exactly decide a position of a pallet exchanging operation, and which can improve stability in operation. The automatic pallet exchanger includes an APC driving shaft (30) rotatably and elevatably standing on an APC body (20); an APC arm (40) supported on the APC shaft (30) for exchanging pallets of a processing area and a waiting area; rotating means for rotating the APC driving shaft (30); a cylinder (80) inserted on the APC driving shaft (30) and fixed on the APC body; a piston mounted on the APC driving shaft (30) for elevating the APC driving shaft (30) according to hydraulic pressure direction within the cylinder (80); a stopper (100) located within a fixed radius from the APC driving shaft (30) and fixed on the APC arm (40); and a pair of stop bolts (110A, 110B) fixed on the APC body (20) to stop the rotation of the APC arm (40) by contacting with the stopper (100) whenever the APC arm (40) is rotated at an angle of 180 DEG .

Description

Automatic pallet exchanger of machine tool
Technical field
The present invention relates to a kind of automatic pallet exchanger of machine tool, relate more specifically to a kind of automatic pallet exchanger of machine tool that can accurately determine the position of supporting plate swap operation and can improve operational stability.
Background technology
Usually, when machining, the supporting plate that is positioned at machining area is intercoursed with the supporting plate that is positioned at waiting area.Therefore, after the machining in machining area, the workpiece that is held in place on the supporting plate in the machining area turns back to waiting area, and meanwhile, the workpiece that is held in place on the supporting plate in the waiting area turns back to machining area.
Lathe has APC (automatic pallet exchanger) to realize the work of this mutual exchange workpiece.
At first, as follows to the term definition of describing among the application:
' lifting ' refers to the motion of rising and descending.
Fig. 8 and Fig. 9 are the structure chart of traditional automatic pallet exchanger of machine tool.Fig. 9 cuts open the cutaway view of getting for the straight line B-B along Fig. 8.
As Fig. 8 and shown in Figure 9, for making the exchange mutually of first supporting plate (P1) that is positioned at machining area 10 and second supporting plate (P2) that is positioned at waiting area 11, APC arm 40 is carried out four kinds of motions, as: rise, rotate, stop and descending.
That is, APC arm 40 is carried out the following step: utilize the piston 90 in the hydraulic pressure lift cylinder 80; Make tooth bar 60 rectilinear motions by the pressure oil of introducing in the calibration cylinder 70, and then make APC driving shaft 30 rotations that stand on the APC main body 20 by pinion 50; When APC driving shaft 30 Rotate 180 degree angles, utilize retainer 72 that APC driving shaft 30 is stopped; And by making piston 90 declines finish the exchange of supporting plate.Therefore, first supporting plate (P1) that is positioned at machining area is transported to waiting area, and second supporting plate (P2) that is positioned at waiting area is transported to machining area, thereby workpiece is exchanged mutually.
As mentioned above, after finishing the rectilinear motion of tooth bar 60 with the pinion 50 of APC driving shaft 30 engagements, rotatablely moving of APC arm 40 stopped by retainer 72, at this moment, can produce backlash between the engaging tooth of tooth bar 60 and pinion 50.This backlash causes 40 counter-rotatings of APC arm or generation vibration, thereby can hinder correct position judgment, and reduces the durability of APC driver part.
And, in traditional APC device, a guiding piece that is used to guide the ascending motion of APC arm 40 only is installed a position.That is, as shown in Figure 8,40 dependence of APC arm are installed in a guiding piece 200 of a position between cylinder 80 and the lift cylinder shell 92 and rise, thereby cause following problem.
That is, as shown in Figure 8, when workpiece W applies offset placed load on APC arm 40, because load concentration is on a side, thereby on guiding piece 200, the partial side wearing and tearing can take place, thereby whole APC drive part tilts, and processing grade (degree) is reduced.
Summary of the invention
Therefore, for the above-mentioned shortcoming that solves prior art has been made the present invention, and the object of the present invention is to provide a kind of automatic pallet exchanger of machine tool, it can determine the position of supporting plate swap operation exactly owing to there is not backkick backlash, and can improve the bearing power of the last lift operations that is used to guide the APC arm, thereby the stability and the Mechanically programm that improve the APC arm.
In order to realize above purpose, according to the present invention, provide a kind of automatic pallet exchanger of machine tool, it comprises: the APC main body; The APC driving shaft, it is rotatable and liftably stand upright on the described APC main body; Whirligig, it is installed in and is used to make described APC driving shaft rotation on the described APC main body; The APC arm, it is installed on the described APC driving shaft with one heart, and rotates integratedly with described APC driving shaft, and this APC arm has the supporting plate that is placed on its leading section; Lowering or hoisting gear, one end are fixed on the described APC arm, are used to make described APC driving shaft vertical lift; Retainer, it is fixed on described APC arm below; And stop device, it is fixed on the described APC main body, by contacting with described retainer described APC arm is stopped the rotation.
Described lowering or hoisting gear comprises: piston, it is assemblied on the excircle of described APC driving shaft, and with the lifting integratedly of described APC driving shaft; Cylinder, one end are inserted on the excircle of described piston and the other end is fixed on the described APC main body; And the lift cylinder shell, the one end is inserted on the excircle of described cylinder and surrounds this cylinder and described APC driving shaft, and the other end is fixed on the described APC arm; Wherein, described cylinder baffle and described APC arm and described APC driving shaft are carried out elevating movement integratedly.
Described APC driving shaft also comprises rotating supporting device, and this rotating supporting device comprises: go up indentation bearing (indent bearing), it is plugged between the inner periphery of the excircle of described lift cylinder and described cylinder baffle; And lower bearing equipment, it has the inner periphery on the excircle of the bottom that is inserted in described APC driving shaft, and is inserted in the excircle that under the state on the described APC main body bottom of described APC driving shaft is supported at the APC driving shaft.
Described lower bearing equipment comprises: the shell carriage, and it is positioned at described APC driving shaft below and is fixed on highlightedly on the described APC main body; The bearing shell, it is fixed on the described shell carriage; And following indentation bearing, it is plugged between the excircle of the inner periphery of described bearing shell and described APC driving shaft.
Described stop device comprises the scotch that is fixed on the described APC main body and is fastened on dogbolt on these scotch by nut, is used to carry out Position Control.
Described scotch comprises the injection apparatus that is used to spray fluid, attaches impurity on the contact portion of described retainer and described dogbolt with removing.
Here, described injection apparatus is an air nozzle.
Described APC driving shaft also comprises antiwear device, be used to prevent the wearing and tearing of the APC driving shaft that causes by the friction with following indentation bearing when described APC driving shaft rotation and lifting, described antiwear device is the cylindrical guide that is plugged between the excircle of the inner periphery of described time indentation bearing and described APC driving shaft.
On the other hand, the invention provides a kind of automatic pallet exchanger of machine tool, it comprises: the APC main body; The APC driving shaft, it is rotatable and liftably stand upright on the described APC main body; Whirligig, it is installed on the described APC main body, is used to make described APC driving shaft rotation; Piston, it is inserted on the excircle of described APC driving shaft, and with this APC driving shaft lifting integratedly; Cylinder, one end are inserted on the excircle of piston and the other end is fixed on the described APC main body; And the lift cylinder shell, the one end is inserted on the excircle of described cylinder and surrounds this cylinder and described APC driving shaft, and the other end is fixed on the described APC arm; The APC arm, it is installed on the described APC driving shaft with one heart, and rotates integratedly with this APC driving shaft, and this APC arm has the supporting plate that is placed on its leading section; Last indentation bearing, it is plugged between the inner periphery of the excircle of described lift cylinder and described cylinder baffle; And lower bearing equipment, it has the inner periphery on the excircle of the bottom that is inserted in described APC driving shaft, and is inserted in the excircle that under the state on the described APC main body its bottom is supported at the APC driving shaft.
Described lower bearing equipment comprises: the shell carriage, and it is positioned at described APC driving shaft below and is fixed on highlightedly on the described APC main body; The bearing shell, it is fixed on the described shell carriage; And following indentation bearing, it is plugged between the excircle of the inner periphery of described bearing shell and described APC driving shaft.
Described APC driving shaft also comprises antiwear device, be used to prevent the wearing and tearing of the APC driving shaft that when described APC driving shaft rotation and lifting, causes, and described antiwear device is the column guiding piece that is plugged between the excircle of the inner periphery of described time indentation bearing and described APC driving shaft by friction with following indentation bearing.
Described APC arm also comprises: retainer, and it is fixed on described APC driving shaft below; And stop device, it contacts and is fixed on the described APC main body with described retainer, in fixing position the rotation of this APC arm is stopped.
Described stop device comprises the scotch that is fixed on the described APC main body, and is fastened to dogbolt on the described scotch by nut, is used to carry out Position Control.
Described scotch comprises air nozzle, and this air nozzle is used to spray fluid and attaches impurity on the contact portion of described retainer and described dogbolt with removing.
Described indentation bearing is a kind of in impression formula, perforation formula, sealing installing type, slot type and the filled type.
Description of drawings
By below in conjunction with the detailed description of accompanying drawing to the preferred embodiment of the present invention, above and other purpose of the present invention, feature and advantage will be apparent, in these accompanying drawings:
Fig. 1 is the stereogram according to automatic pallet exchanger of machine tool of the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is that the line A-A along Fig. 2 cuts open the cutaway view of getting;
Fig. 4 (a) is that the operation according to calibration cylinder of the present invention is passed through in expression, the view of 90 degree rotation status of APC arm;
Fig. 4 (b) is that the operation according to calibration cylinder of the present invention is passed through in expression, the view of 180 degree rotation status of APC arm;
Fig. 5 is the vertical sectional view according to automatic pallet exchanger of machine tool of the present invention;
Fig. 6 is the zoomed-in view of the K part of Fig. 5;
Fig. 7 is the stereogram of seeing from according to the bottom of automatic pallet exchanger of machine tool of the present invention;
Fig. 8 is the structure chart of traditional automatic pallet exchanger of machine tool, and expression has applied the state of offset placed load; And
Fig. 9 is that the line B-B along Fig. 8 cuts open the cutaway view of getting.
The specific embodiment
Now with reference to accompanying drawing the preferred embodiments of the present invention are described in detail.
Fig. 1 is the stereogram according to automatic pallet exchanger of machine tool of the present invention, Fig. 2 is the front view of Fig. 1, Fig. 3 is that the line A-A along Fig. 2 cuts open the cutaway view of getting, Fig. 4 (a) is that expression is by the operation according to calibration cylinder of the present invention, the view of 90 degree rotation status of APC arm, Fig. 4 (b) is the operation of expression APC arm by calibration cylinder of the present invention, the view of 180 degree rotation status of APC arm, and Fig. 5 is the vertical sectional view according to automatic pallet exchanger of machine tool of the present invention.
Here, the parts that automatic pallet exchanger of machine tool according to the present invention is identical with the prior art shown in Fig. 8 have the Reference numeral identical with the prior art shown in Fig. 8.
As Fig. 1 and shown in Figure 5, automatic pallet exchanger of machine tool according to the present invention comprises APC main body 20 and rotatable and liftably stand upright on APC driving shaft 30 on this APC main body 20.
APC main body 20 comprises the whirligig that is used to make 30 rotations of APC driving shaft, and the APC arm 40 that rotates integratedly with APC driving shaft 30 under the state thereon of supporting plate position.In addition, APC arm 40 is installed on the APC main body 20 and is connected to the lowering or hoisting gear that is used to make these APC arm 40 vertical lifts.
As shown in Figure 3, be used to make the whirligig of APC driving shaft 30 rotations to comprise: to be installed in the pinion 50 on the bottom of APC driving shaft 30; Tooth bar 60 with pinion 50 engagements; And be installed in calibration cylinder 70 on the APC main body 20, be used to make tooth bar 60 to move forward and backward along the direction vertical with APC driving shaft 30.
Be used to make the lowering or hoisting gear of APC arm 40 vertical lifts to comprise: piston 90, its be inserted on the excircle of APC driving shaft 30 and with this APC driving shaft 30 lifting integratedly; Cylinder 80, the one end is inserted on the excircle of piston 90, and the other end is fixed on the APC main body 20; And lift cylinder shell 92, the one end is inserted on the excircle of cylinder 80 and surrounds cylinder 80 and APC driving shaft 30, and the other end is fixed on the APC arm 40.Lift cylinder shell 92 and APC arm 40 and APC driving shaft 30 lifting integratedly.
As shown in Figure 1 to Figure 3, retainer 100 is fixed on a position of the bottom surface of APC arm 40, and is positioned at the scope with the centre distance radii fixus of APC driving shaft 30.
Therefore, retainer 100 rotates integratedly with APC arm 40.When APC arm 40 Rotate 180s ° angle, retainer 100 also rotates identical angle, and changes its position.
A pair of dogbolt 110A and 110B are fixed on the APC main body 20 as stop device, are used for just by contacting with retainer 100 this APC arm 40 being stopped the rotation when APC arm 40 reciprocal Rotate 180s ° angle.
Preferably, dogbolt 110A and 110B are tightened onto respectively on the scotch 120A and 120B that is fixed on the APC main body 20 by this way, controlling their position, and nut 130A and 130B are tightened onto respectively on dogbolt 110A and the 110B.
Therefore, dogbolt 110A and 110B move according to their direction of rotation, and the fastening force of the controlled location of dogbolt 110A and 110B by nut 130A and 130B is fixed on scotch 120A and the 120B.
Air nozzle 140A and 140B are installed on scotch 120A and the 120B, as injection apparatus, are used for will sticking to contaminant removal on the contact portion between retainer 100 and dogbolt 110A and the 110B by air pressure.At this moment, the injection direction of air nozzle 140A and 140B points to the contact surface of retainer 100 and dogbolt 110A and 110B, and air nozzle 140A and 140B are connected on the pneumatic supply to discharge compressed air.
Simultaneously, APC machine of the present invention is stably supported the rotation and the descending operation of APC arm 40 two positions.That is, the present invention includes the rotating supporting device at the place, upper and lower that is installed in APC arm 40.
As shown in Figure 5, the upper support device is to be plugged in the excircle of cylinder 80 and to be connected to last indentation bearing 200 between the inner periphery of the lift cylinder shell 92 on the APC arm 40.
The lower support device is the lower bearing equipment 210 that is assemblied on the excircle of bottom of APC driving shaft 30, and under it is fixed on state on the APC main body 20, supports the bottom of APC driving shaft 30.
Fig. 6 and Fig. 7 represent lower bearing equipment 210.Fig. 6 is the zoomed-in view of the K part of Fig. 5, and Fig. 7 is the stereogram of seeing from the bottom of lathe pallet exchanger according to the present invention.
Lower bearing equipment 210 is positioned at APC driving shaft 30 belows, and comprises: be fixed on shell carriage 214 on the APC main body 20, be fixed on the bearing shell 216 on the shell carriage 214 and be plugged in the inner periphery of bearing shell 216 and the excircle of APC driving shaft 30 between indentation bearing 218.
Simultaneously, APC driving shaft 30 also comprises antiwear device, is used to prevent the wearing and tearing that produce owing to the friction with indentation bearing 218 when 30 rotations of APC driving shaft and lifting.
In the present invention, described antiwear device is the column guiding piece 212 that is installed between the excircle of the inner periphery of indentation bearing 218 and APC driving shaft 30.
Indentation bearing 200 and 218 can keep evenly lubricated by the indentation that is engraved in the bearing surface always, and can select a kind of from impression formula, perforation formula, sealing installing type, slot type and filled type.
Below, will be described operation of the present invention.
At first, as shown in Figure 2, before the swap operation of APC arm 40, under APC arm 40 was positioned at state on the rotating dog 5, a dogbolt 110A was controlled on its position.That is, as shown in Figure 3, control dogbolt 110A by this way, make the front end face of dogbolt 110A contact, firmly fix with nut 130A then with the flattened side 110a of retainer 100.
Then, APC arm 40 Rotate 180s ° angle is to control the position of another dogbolt 110B.Shown in Fig. 4 (b), when APC arm 40 Rotate 180s ° angle, another flattened side 100b of retainer 100 is near the front end face of dogbolt 110B.Under above-mentioned state, control dogbolt 110B by this way, make the leading section of dogbolt 110B contact with flat surfaces 100b, fix with nut 130A and 130B then.
Thereby finished Position Control to dogbolt 110A and 110B.
After having finished Position Control, carry out the supporting plate exchange in fixing position accurate and stablely, and need not when the supporting plate exchange of APC arm 40, to consider the backlash of tooth bar 60 and pinion 50 with regard to total energy to dogbolt 110A respect to one another and 110B.
In addition, be installed in the last indentation bearing 200 at upper and lower place of APC driving shaft 30 and the descending operation channeling conduct and the support of 218 pairs of these APC driving shafts 30 of following indentation bearing, thereby,, on APC driving shaft 30, do not have the partial side wearing and tearing even APC arm 40 is applied offset placed load yet.
To be described above-mentioned according to the operation of APC arm 40.
At first, when sending instruction when laying respectively at supporting plate in waiting area and the machining area with exchange (at this moment, the flat surfaces 100a of retainer 100 contacts with dogbolt 110A), as shown in Figure 5, pressure oil is supplied in the lower chambers (U) of cylinder 80, thus jigger lifting piston 90.
By the lifting operation of piston 90, APC driving shaft 30 and lift cylinder shell 92 move up simultaneously.At this moment, lift cylinder shell 92 rises by the guiding and the support of last indentation bearing 200, and APC driving shaft 30 is by the guiding and the support of indentation bearing 218 are risen down.
Then, pressure oil is supplied to calibration cylinder 70, and as shown in Figure 4, tooth bar 60 carries out rectilinear motion, and revolving force is passed on the pinion 50 with tooth bar 60 engagement, thereby APC driving shaft 30 rotates integratedly with APC arm 40.The state at Fig. 4 (a) expression APC arm 40 half-twist angles, and the state at Fig. 4 (b) expression APC arm 40 Rotate 180s ° angle.
Shown in Fig. 4 (a), when 40 rotations of APC arm, retainer 100 also rotates by APC driving shaft 30.Shown in Fig. 4 (b), when APC arm 40 arrives the position at 180 ° of angles, the flat surfaces 100b of retainer 100 contacts with the dogbolt 110B that is positioned at this retainer opposite side place, thereby in the situation that does not have backlash APC arm 40 is stopped at 180 ° position of rotation place.
When sending the instruction of exchange supporting plate, fluid ejection apparatus sprays fluid will attaching the contaminant removal on the contact portion between retainer 100 and dogbolt 110A and the 110B, thereby supporting plate can be exchanged at the more accurate location place.
Described fluid is a kind of in cutting oil, air and the mist of oil, and this can suitably select according to operating mode.For example, if fluid is an air, injection apparatus generally uses air nozzle 140A and 140B, and sprays compressed air and attach impurity on the contact portion between retainer 100 and the dogbolt 110B with removing.
Then, as shown in Figure 5, pressure oil is supplied in the upper chamber (D) of cylinder 80, thereby piston 90, APC driving shaft 30, lift cylinder shell 92 and APC arm 40 descend simultaneously and be positioned on the alignment pin 5.Even when APC arm 40 descends, APC arm 40 is also guided slidably by last indentation bearing 200 and following indentation bearing 218 and supports.
Simultaneously, for the supporting plate that will be positioned at machining area is transported to waiting area, APC arm 40 edges rotate in the opposite direction with above-mentioned side, thereby when the flat surfaces 100a of retainer 100 contacted by dogbolt 110A and with APC arm 40, APC arm 40 stopped at fixing position.
As mentioned above, according to described automatic pallet exchanger of machine tool, convert rotatablely moving of pinion 50 to by linear running and make 40 rotations of APC arm tooth bar 60, then, also make APC arm 40 stop at fixing position by retainer 100 with dogbolt 110A and 110B under the out of mesh situation.Therefore, the present invention can provide position judgment accurately and the APC driver part of good tolerance can be provided, and not vibration.
And, although on APC arm 40, be applied with offset placed load, even but between the rotation and buck stay of APC arm 40, the present invention also can be by being installed in two positions the bearing of indentation up and down 200 and 218 guiding and support force, prevent the partial side wearing and tearing of APC driver part and the inclination of operating surface, thereby improve the stability of supporting plate swap operation.
As mentioned above, can under out of mesh situation, determine the exchange stop position of APC arm by stop device according to automatic pallet exchanger of machine tool of the present invention, thereby stably carry out the swap operation of supporting plate in accurate position, and can improve supporting force, thereby improve operational stability and the processing grade of APC by the indentation bearing that is installed in two positions.
Although invention has been described with reference to concrete illustrative examples, yet the present invention is not subjected to the restriction of these embodiment, but only be defined by the following claims.Should be appreciated that those skilled in the art can change or revises these embodiment under the situation that does not deviate from scope and spirit of the present invention.

Claims (11)

1, a kind of automatic pallet exchanger of machine tool is used to make supporting plate that is positioned at machining area and the supporting plate that is positioned at waiting area to exchange mutually, and this automatic pallet exchanger of machine tool comprises:
The APC main body;
The APC driving shaft, it is rotatable and liftably stand upright on the described APC main body;
Whirligig, it is installed on the described APC main body, is used to make described APC driving shaft rotation;
The APC arm, it is installed on the described APC driving shaft with one heart, and rotates integratedly with described APC driving shaft, and this APC arm has the supporting plate that is positioned on its leading section;
Lowering or hoisting gear, one end are fixed on the described APC arm, are used to make described APC driving shaft vertical lift;
Retainer, it is fixed on described APC arm below; And
Stop device, it is fixed on the described APC main body, is used for by contacting the rotation that stops described APC arm with described retainer,
Described lowering or hoisting gear comprises: piston, it is inserted on the excircle of described APC driving shaft, and with described APC driving shaft (30) lifting integratedly; Cylinder, one end are inserted on the excircle of described piston and the other end is fixed on the described APC main body; And lift cylinder shell, the one end is inserted on the excircle of described cylinder and surrounds described cylinder and described APC driving shaft, and the other end is fixed on the described APC arm, wherein, described lift cylinder shell and described APC arm and described APC driving shaft are carried out elevating movement integratedly
Described APC driving shaft also comprises rotating supporting device, and this rotating supporting device comprises: go up the indentation bearing, it is plugged between the inner periphery of the excircle of described cylinder and described lift cylinder shell; And lower bearing equipment, it has the inner periphery on the excircle of the bottom that is inserted in described APC driving shaft, and is inserted in the excircle that under the state on the described APC main body bottom of described APC driving shaft is supported at it,
It is characterized in that described lower bearing equipment comprises: the shell carriage, it is positioned at described APC driving shaft below, and is fixed on highlightedly on the described APC main body; The bearing shell, it is fixed on the described shell carriage; And following indentation bearing, it is plugged between the excircle of the inner periphery of described bearing shell and described APC driving shaft.
2, automatic pallet exchanger of machine tool according to claim 1 is characterized in that, described stop device comprises the scotch that is fixed on the described APC main body, and is fastened on dogbolt on this scotch by nut, is used to carry out Position Control.
3, automatic pallet exchanger of machine tool according to claim 2 is characterized in that, described scotch comprises the injection apparatus that is used to spray fluid, attaches impurity on the contact portion of described retainer and described dogbolt with removing.
4, automatic pallet exchanger of machine tool according to claim 3 is characterized in that, described injection apparatus is an air nozzle.
5, automatic pallet exchanger of machine tool according to claim 1, it is characterized in that, described APC driving shaft also comprises antiwear device, be used to prevent cause owing to the friction with following indentation bearing when described APC driving shaft rotation and lifting the wearing and tearing of described APC driving shaft, described antiwear device is the cylindrical guide that is plugged between the excircle of the inner periphery of described time indentation bearing and described APC driving shaft.
6, a kind of automatic pallet exchanger of machine tool is used to make supporting plate that is positioned at machining area and the supporting plate that is positioned at waiting area to exchange mutually, and this automatic pallet exchanger of machine tool comprises:
The APC main body;
The APC driving shaft, it is rotatable and liftably stand upright on the described APC main body;
Whirligig, it is installed on the described APC main body, is used to make described APC driving shaft rotation;
Piston, it is assemblied on the excircle of described APC driving shaft, and with this APC driving shaft (30) lifting integratedly;
Cylinder, one end are inserted on the excircle of described piston and the other end is fixed on the described APC main body; And
Lift cylinder shell, one end are inserted on the excircle of described cylinder and surround described cylinder and described APC driving shaft, and the other end is fixed on the described APC arm;
The APC arm, it is installed on the described APC driving shaft with one heart, and rotates integratedly with described APC driving shaft, and this APC arm has the supporting plate that is positioned on its leading section;
Last indentation bearing, it is plugged between the inner periphery of the excircle of described cylinder and described lift cylinder shell; And
Lower bearing equipment, it has the inner periphery on the excircle that is inserted in described APC driving shaft bottom, and is inserted in the excircle that under the state on the described APC main body bottom of described APC driving shaft is supported at it,
It is characterized in that described lower bearing equipment comprises:
The shell carriage, it is positioned at described APC driving shaft below, and is fixed on highlightedly on the described APC main body;
The bearing shell, it is fixed on the described shell carriage; And
Following indentation bearing, it is plugged between the excircle of the inner periphery of described bearing shell and described APC driving shaft.
7, automatic pallet exchanger of machine tool according to claim 6, it is characterized in that, described APC driving shaft also comprises antiwear device, be used to prevent cause owing to the friction with following indentation bearing when described APC driving shaft rotation and lifting the wearing and tearing of described APC driving shaft, described antiwear device is the cylindrical guide that is plugged between the excircle of the inner periphery of described time indentation bearing and described APC driving shaft.
8, automatic pallet exchanger of machine tool according to claim 6 is characterized in that, described APC arm also comprises:
Retainer, it is fixed on described APC driving shaft below; And
Stop device, it contacts with described retainer, and is fixed on the described APC main body, in fixing position the rotation of described APC arm is stopped.
9, automatic pallet exchanger of machine tool according to claim 8 is characterized in that, described stop device comprises the scotch that is fixed on the described APC main body, and is fastened to dogbolt on the described scotch by nut, is used to carry out Position Control.
10, automatic pallet exchanger of machine tool according to claim 9 is characterized in that, described scotch comprises the air nozzle that is used to spray fluid, attaches impurity on the contact portion of described retainer and described dogbolt with removing.
According to claim 1 or 6 described automatic pallet exchanger of machine tool, it is characterized in that 11, described indentation bearing one of them for selecting, this group comprise impression formula, perforation formula, sealing installing type, slot type and filled type from following group.
CNB2005101350681A 2004-12-29 2005-12-23 Automatic pallet exchanger of machine tool Expired - Fee Related CN100479982C (en)

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KR1020040115510 2004-12-29
KR1020040115510A KR100600026B1 (en) 2004-12-29 2004-12-29 Guide Apparatus for Automatic Pallet Changer Apparatus of Inclination Prevention
KR1020040115511 2004-12-29

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CN103796793A (en) * 2011-09-16 2014-05-14 株式会社牧野铣床制作所 Machine tool pallet changer, changing method and machine tool
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DE102009035804B3 (en) * 2009-07-31 2010-08-12 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Machine workpiece machining system and pallet support for a mechanical workpiece machining system
KR101597834B1 (en) * 2009-12-14 2016-02-25 두산인프라코어 주식회사 Automatic palette changer
DE102012201728B4 (en) * 2012-02-06 2021-11-18 Deckel Maho Pfronten Gmbh MACHINE TOOL WITH PALLET CHANGING DEVICE
CN106670829B (en) * 2016-03-10 2019-05-21 上海大侨誉远精密机械有限公司 A kind of support chooses compound exchange bracket
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Publication number Priority date Publication date Assignee Title
CN103796793A (en) * 2011-09-16 2014-05-14 株式会社牧野铣床制作所 Machine tool pallet changer, changing method and machine tool
CN103796793B (en) * 2011-09-16 2017-02-15 株式会社牧野铣床制作所 Machine tool pallet changer, changing method and machine tool
US9102474B2 (en) 2013-11-20 2015-08-11 Industrial Technology Research Institute Rotation mechanism

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KR100600026B1 (en) 2006-07-13
KR20060076891A (en) 2006-07-05

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