CN103252646B - Ultrasonic wave cutting knife constant torque assembly device and method - Google Patents
Ultrasonic wave cutting knife constant torque assembly device and method Download PDFInfo
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- CN103252646B CN103252646B CN201310202198.7A CN201310202198A CN103252646B CN 103252646 B CN103252646 B CN 103252646B CN 201310202198 A CN201310202198 A CN 201310202198A CN 103252646 B CN103252646 B CN 103252646B
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Abstract
The invention discloses an ultrasonic wave cutting knife constant torque assembly device and method. The ultrasonic wave cutting knife constant torque assembly device comprises a drive motor, a coupler, a ball screw, a fixing platform, a standing column, a sliding block, a box body, a torque sensor, an internal hexagonal wrench, a pair of clamping pincers, a clamping air cylinder and an ultrasonic acoustic system. The ultrasonic acoustic system comprises a sandwich-type piezoelectric transducer, an amplitude-change pole, a flange plate and a cutting disc, wherein the amplitude-change pole and the cutting disc are connected through a first bolt, the sandwich-type piezoelectric transducer and the amplitude-change pole are connected through a second bolt, the ultrasonic acoustic system is put into the fixing platform, the flange plate is used for carrying out circumferential location and triggering a touch switch, orders are sent out by a single chip microcomputer to enable the clamping air cylinder to stretch, the neck part of the amplitude-change pile is clamped by the clamping pincers, the internal hexagonal wrench descends to screw up a hex screw, the size of torque is measured by a torque measuring sensor, and when the torque reaches preset torque, the motor stops immediately. The ultrasonic wave cutting knife constant torque assembly device and method is easy to operate, capable of effectively replacing manpower to fix and screw the cutting disc and reducing damage on the amplitude-change pole, and more accurate in value of the torque.
Description
Technical field
The present invention relates to Cutting tool installation manner field, particularly relate to the permanent moment of torsion assembling device of a kind of ultrasonic wave cutter and method.
Background technology
The existing process equipment of cellular material has five-axle linkage gantry Machining Center, five-shaft numerical control vertical knee-type milling machine, and the higher ultrasonic wave six axle/five axle gantry numerical control milling machine of machining accuracy is best suited for the process equipment of cellular material.
At home, also do not have ready-made ultrasonic wave CNC milling machine at present, technique is still in development.Ultrasonic acoustic system is one of core component of numerical control supersonic milling machine, and together with in ultrasonic acoustic system, ultrasonic transformer is fastened by bolts with transducer, cutting disc is tightened on ultrasonic transformer by hex bolts.And the method for initially tightening hex bolts is when ultrasonic acoustic system is in the milling head of Five-axis NC Machining Center, manually tighten.There is following shortcoming in traditional tool assembly process:
1) ultrasonic acoustic system is by torsional moment effect, with main shaft generation relative displacement, destroys guide rail performance, reduces milling machine machining accuracy;
2) ultrasonic transformer is composited by circular cone ultrasonic transformer and horn,stepped, and fixed by the ring flange Nodes of ultrasonic transformer; Further, compound ultrasonic transformer output and nodal distance are very large, similar cantilever beam structure.Therefore, in the process of tightening, ultrasonic transformer is tightened end and easily to be twisted distortion;
3) if the moment of torsion tightened is excessive, then the easy internal thread to bolt damages, and even causes bolt fracture; If the moment of torsion tightened is too little, then sound system cisco unity malfunction, even cutter and ultrasonic transformer depart from;
4) in traditional assembling process, at least need a people to fix the output of ultrasonic transformer, what a people carried out bolt tightens work, causes complicated operation, easily occurs deviation, easily cause damage to equipment.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the permanent moment of torsion assembling device of a kind of ultrasonic wave cutter and method.
The permanent moment of torsion assembling device of a kind of ultrasonic wave cutter of the present invention, comprises fixed station, the first servomotor, shaft coupling, ball-screw, column, rolling bearing, bearing (ball) cover, casing, the second servomotor, torque sensor, end cap, inner hexagon spanner, cutting disc, the first bolt, gripper clamp, gripper cylinder, sleeve, brace table, the 3rd bolt, hex nut, ultrasonic transformer, ring flange, the second bolt, sandwich piezoelectric transducer, supporting seat, the 4th bolt, sliding bearing and slide block;
Described fixed station is I-shaped structure, and four angles of its lower surface are fixed by four bolts; Fixed station upper table surface center has cylindrical hole, and there is column the side of upper surface, and column is fixedly connected with fixed station by a symmetrical bolt installed; Column inside is provided with ball-screw, and the lower end of ball-screw is connected by the output shaft of shaft coupling with the first servomotor; Fixed by rolling bearing and column in ball-screw upper end, and have bearing (ball) cover to seal;
Casing and slide block affixed, slide block is arranged on column, and slide block is connected with ball-screw by ball nut, and is slidably connected with column; Casing upper end is provided with the second servomotor, and the output shaft of the second servomotor is connected with torque sensor by shaft coupling, for detecting moment size; Torque sensor is connected with die nut by shaft coupling, and casing is by end cap seal.
Be provided with ultrasonic acoustic system immediately below inner hexagon spanner, described ultrasonic acoustic system comprises sandwich piezoelectric transducer, ultrasonic transformer, ring flange, cutting disc, the first bolt and the second bolt; Sandwich piezoelectric transducer is fixed in the cylindrical hole of fixed station by supporting seat, and the output of sandwich piezoelectric transducer is connected by the input of the second bolt ultrasonic transformer; The output of ultrasonic transformer is connected with the joint face of cutting disc by the first bolt, and is connected with the upper bottom surface of fixed station by ring flange;
Brace table is anchored on plane on fixed station by the 3rd bolt and hex nut, and is positioned at centered by ultrasonic transformer, the opposite side corresponding with column.
The two, through the centre bore of gripper clamp and the sleeve for supporting gripper clamp, is fixed on brace table by the 4th bolt; Sleeve has cascaded surface, and lower surface diameter is comparatively large, and there is sliding bearing the hinged place of gripper clamp; At gripper clamp tail end, gripper cylinder is housed, opening and clamping for gripper clamp.The bare terminal end of gripper clamp is positioned at the outside of ultrasonic transformer.
The permanent moment of torsion assembly method of a kind of ultrasonic wave cutter of the present invention, the method comprises the following steps:
Step one: ultrasonic transformer is connected by the second bolt with sandwich piezoelectric transducer, forms whole ultrasonic acoustic device;
Step 2: by deep hole in the middle part of ultrasonic acoustic device loading fixed station; There are two symmetrical salient points at deep hole edge, utilize the circumferential notches on ultrasonic transformer node ring flange to carry out the circumferential angle of positioning ultrasonic acoustic apparatus, and supplemental support and mounting ultrasonic acoustic apparatus come by supporting seat in bottom; After inductor receives signal, send signal by PLC, gripper cylinder is shunk, the neck of gripper clamp clamping ultrasonic transformer, and gripper clamp is fixed on brace table by bolt and sleeve;
Step 3: the first servomotor rotates, ball-screw rotates, and falls inner hexagon spanner, and the second servomotor rotates, and cutting disc and ultrasonic transformer is tightened by the first bolt; After tightening, moment of torsion rises thereupon, and torque sensor detects moment of torsion and reaches appointment numerical value, sends signal, stops the second servomotor, and the first private servomotor reversion, inner hexagon spanner rises.
The beneficial effect that the present invention compared with prior art has:
1) torsion is more accurate, and torque value remains unchanged in the process of tightening;
2) in the process of tightening, coherent, rationally, accurately operate the damage of ultrasonic transformer less;
3) main shaft is arranged on milling machine before complete the assembling of cutter, ensure machining accuracy;
4) convenient and swift, simple to operate;
5) production cost is low.
Accompanying drawing explanation
Fig. 1 is the assembly flow charts of the permanent moment of torsion assembling device of ultrasonic wave cutter;
Fig. 2 (a) is the front view of the permanent moment of torsion assembling device of ultrasonic wave cutter;
Fig. 2 (b) is the top view of the permanent moment of torsion assembling device of ultrasonic wave cutter;
Fig. 3 is state diagram when being in clamping of gripper clamp of the present invention and ultrasonic transformer.
In figure, fixed station 1, first servomotor 2, shaft coupling 3, ball-screw 4, column 5, rolling bearing 6, bearing (ball) cover 7, casing 8, second servomotor 9, torque sensor 10, end cap 11, inner hexagon spanner 12, cutting disc 13, first bolt 14, gripper clamp 15, gripper cylinder 16, sleeve 17, brace table 18, the 3rd bolt 19, hex nut 20, ultrasonic transformer 21, ring flange 22, second bolt 23, sandwich piezoelectric transducer 24, supporting seat 25, the 4th bolt 26, sliding bearing 27, slide block 28.
Detailed description of the invention
As Fig. 2 (a), shown in Fig. 2 (b), the permanent moment of torsion assembling device of a kind of ultrasonic wave cutter of the present invention, comprise fixed station 1, first servomotor 2, shaft coupling 3, ball-screw 4, column 5, rolling bearing 6, bearing (ball) cover 7, casing 8, second servomotor 9, torque sensor 10, end cap 11, inner hexagon spanner 12, cutting disc 13, first bolt 14, gripper clamp 15, gripper cylinder 16, sleeve 17, brace table 18, 3rd bolt 19, hex nut 20, ultrasonic transformer 21, ring flange 22, second bolt 23, sandwich piezoelectric transducer 24, supporting seat 25, 4th bolt 26, sliding bearing 27 and slide block 28,
Described fixed station 1 is I-shaped structure, and four angles of its lower surface are fixed by four bolts; Fixed station 1 upper table surface center has cylindrical hole, and there is column 5 side of upper surface, and column 5 is fixedly connected with fixed station 1 by 4 symmetrical bolts installed; Column 5 inside is provided with ball-screw 4, and the lower end of ball-screw 4 is connected with the output shaft of the first servomotor 2 by shaft coupling 3; Fixed by rolling bearing 6 and column 5 in ball-screw 4 upper end, and have bearing (ball) cover 7 to seal;
Casing 8 is affixed with slide block 28, and slide block 28 is arranged on column 5, and slide block 28 is connected with ball-screw 4 by ball nut, and is slidably connected with column 5; The output shaft that casing 8 upper end is provided with the second servomotor 9, second servomotor 9 is connected with torque sensor 10 by shaft coupling, for detecting moment size; Torque sensor 10 is connected with die nut 12 by shaft coupling, and casing 8 is sealed by end cap 11.
Be provided with ultrasonic acoustic system immediately below inner hexagon spanner 12, described ultrasonic acoustic system comprises sandwich piezoelectric transducer 24, ultrasonic transformer 21, ring flange 22, cutting disc 13, first bolt 14 and the second bolt 23; Sandwich piezoelectric transducer 24 is fixed in the cylindrical hole of fixed station 1 by supporting seat 25, and the output of sandwich piezoelectric transducer 24 is connected with the input of ultrasonic transformer 21 by the second bolt 23; The output of ultrasonic transformer 21 is connected with the joint face of cutting disc 13 by the first bolt 14, and is connected with the upper bottom surface of fixed station 1 by ring flange 22;
Brace table 18 is anchored on plane on fixed station 1 by the 3rd bolt 19 and hex nut 20, and is positioned at centered by ultrasonic transformer 21, the opposite side corresponding with column 5;
As shown in Figure 3, the two, through the centre bore of gripper clamp 15 and the sleeve 17 for supporting gripper clamp 15, is fixed on brace table 18 by the 4th bolt 26; Sleeve 17 has cascaded surface, and lower surface diameter is comparatively large, and there is sliding bearing 27 hinged place of gripper clamp; At gripper clamp 15 tail end, gripper cylinder 16 is housed, opening and clamping for gripper clamp, and is fixed by two bolts.The bare terminal end of gripper clamp is positioned at the outside of ultrasonic transformer 21.
As shown in Figure 1, ultrasonic transformer 21 is connected by the second bolt 23 with sandwich piezoelectric transducer 24, forms whole ultrasonic acoustic device; Secondly, loaded in the middle part of fixed station 1 in deep hole by ultrasonic acoustic device, supplemental support and mounting ultrasonic acoustic apparatus are come by supporting seat 25 in bottom; After fixing, inductor receives signal, sends PLC to, and PLC sends signal, and gripper cylinder 16 is shunk, and ultrasonic transformer 21 clamps by gripper clamp 15, and gripper clamp 15 is fixed on brace table 18 by the 4th bolt 26 and sleeve 17; Meanwhile, the first servomotor 2 rotates, and ball-screw 4 rotates, and falls inner hexagon spanner 12, and the second servomotor 9 rotates, and cutting disc 13 and ultrasonic transformer 21 is tightened by the first bolt 14; After tightening, moment of torsion rises thereupon, and torque sensor 10 detects inner hexagon spanner 12 moment of torsion and reaches appointment numerical value, sends signal, and stop the second servomotor 9, first servomotor 2 to reverse, inner hexagon spanner 12 rises.
Claims (2)
1. the permanent moment of torsion assembling device of ultrasonic wave cutter, comprises fixed station, the first servomotor, shaft coupling, ball-screw, column, rolling bearing, bearing (ball) cover, casing, the second servomotor, torque sensor, end cap, inner hexagon spanner, cutting disc, the first bolt, gripper clamp, gripper cylinder, sleeve, brace table, the 3rd bolt, hex nut, ultrasonic transformer, ring flange, the second bolt, sandwich piezoelectric transducer, supporting seat, the 4th bolt, sliding bearing and slide block;
It is characterized in that: described fixed station is I-shaped structure, four angles of its lower surface are fixed by four bolts; Fixed station upper table surface center has cylindrical hole, and there is column the side of fixed station upper table surface, and column is fixedly connected with fixed station by 4 symmetrical bolts installed; Column inside is provided with ball-screw, and the lower end of ball-screw is connected by the output shaft of shaft coupling with the first servomotor; Fixed by rolling bearing and column in ball-screw upper end, and have bearing (ball) cover to seal;
Casing and slide block affixed, slide block is arranged on column, and slide block is connected with ball-screw by ball nut, and is slidably connected with column; Casing upper end is provided with the second servomotor, and the output shaft of the second servomotor is connected with torque sensor by shaft coupling, for detecting moment size; Torque sensor is connected with inner hexagon spanner by shaft coupling, and casing is by end cap seal;
Be provided with ultrasonic acoustic system immediately below inner hexagon spanner, described ultrasonic acoustic system comprises sandwich piezoelectric transducer, ultrasonic transformer, ring flange, cutting disc, the first bolt and the second bolt; Sandwich piezoelectric transducer is fixed in the cylindrical hole of fixed station by supporting seat, and the output of sandwich piezoelectric transducer is connected with the input of ultrasonic transformer by the second bolt; The output of ultrasonic transformer is connected with the joint face of cutting disc by the first bolt, and is connected with fixed station upper table surface by ring flange;
Brace table is anchored on fixed station upper table surface by the 3rd bolt and hex nut, and is positioned at centered by ultrasonic transformer, the opposite side corresponding with column;
The two, through the centre bore of gripper clamp and the sleeve for supporting gripper clamp, is fixed on brace table by the 4th bolt; Sleeve has cascaded surface, and lower surface diameter is comparatively large, and there is sliding bearing the hinged place of gripper clamp; At gripper clamp tail end, gripper cylinder is housed, opening and clamping for gripper clamp; The bare terminal end of gripper clamp is positioned at the outside of ultrasonic transformer.
2. the permanent moment of torsion assembly method of ultrasonic wave cutter, the method comprises the following steps:
Step one: ultrasonic transformer is connected by the second bolt with sandwich piezoelectric transducer, forms whole ultrasonic acoustic device;
Step 2: by deep hole in the middle part of ultrasonic acoustic device loading fixed station; In the middle part of fixed station, there are two symmetrical salient points at deep hole edge, utilize the circumferential notches on ultrasonic transformer node ring flange to carry out the circumferential angle of positioning ultrasonic acoustic apparatus, and supplemental support and mounting ultrasonic acoustic apparatus is come by supporting seat in bottom; After inductor receives signal, send signal by PLC, gripper cylinder is shunk, the neck of gripper clamp clamping ultrasonic transformer, and gripper clamp is fixed on brace table by bolt and sleeve;
Step 3: the first servomotor rotates, ball-screw rotates, and falls inner hexagon spanner, and the second servomotor rotates, and cutting disc and ultrasonic transformer is tightened by the first bolt; After tightening, moment of torsion rises thereupon, and torque sensor detects moment of torsion and reaches appointment numerical value, sends signal, stops the second servomotor, and the first servomotor reversion, inner hexagon spanner rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202198.7A CN103252646B (en) | 2013-05-27 | 2013-05-27 | Ultrasonic wave cutting knife constant torque assembly device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202198.7A CN103252646B (en) | 2013-05-27 | 2013-05-27 | Ultrasonic wave cutting knife constant torque assembly device and method |
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| Publication Number | Publication Date |
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| CN103252646A CN103252646A (en) | 2013-08-21 |
| CN103252646B true CN103252646B (en) | 2015-07-08 |
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| CN201310202198.7A Expired - Fee Related CN103252646B (en) | 2013-05-27 | 2013-05-27 | Ultrasonic wave cutting knife constant torque assembly device and method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128625B (en) * | 2014-06-24 | 2016-12-07 | 杭州电子科技大学 | Based on motor-driven ultrasound wave cutting tool apparatus for automatic change and method |
| CN104526761A (en) * | 2014-12-14 | 2015-04-22 | 芜湖新宝超声波设备有限公司 | Servo drive ultrasonic punching device |
| CN104924347B (en) * | 2015-05-22 | 2017-04-19 | 杭州电子科技大学 | Ultrasonic cutting adjustment device and cutting method |
| CN107329452A (en) * | 2017-07-07 | 2017-11-07 | 泰州职业技术学院 | A kind of nut tightening machine control system and its method |
| CN107234446B (en) * | 2017-08-09 | 2019-06-18 | 东北大学 | A kind of ultrasonic vibration cutting work head |
| CN108381671B (en) * | 2018-01-15 | 2019-09-20 | 杭州电子科技大学 | A kind of ultrasonic cutting electro spindle of hollow servo motor driving |
| CN108637671B (en) * | 2018-05-21 | 2019-09-20 | 汇专绿色工具有限公司 | The assembly technique of ultrasonic wave knife handle |
| CN113715898B (en) * | 2020-05-25 | 2022-10-21 | 吉林世宝机械制造有限公司 | Intermediate shaft torsion device and intermediate shaft machining method |
| CN111515669A (en) * | 2020-06-03 | 2020-08-11 | 深圳市初心自动化设备有限公司 | Amplitude transformer screw machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2532187B2 (en) * | 1991-11-20 | 1996-09-11 | 本田技研工業株式会社 | Assembly method of ball screw |
| JPH05285747A (en) * | 1992-04-14 | 1993-11-02 | Hirata Kiko Kk | Part assembling device |
| CN201217145Y (en) * | 2008-05-30 | 2009-04-08 | 比亚迪股份有限公司 | Automatic screwing down apparatus |
| CN101811251B (en) * | 2010-05-06 | 2011-08-17 | 长春吉扬华欣科技有限责任公司 | Automatic assembly equipment for fixed torque bolt of splitting connecting rod |
| CN202639765U (en) * | 2012-05-31 | 2013-01-02 | 上海第二工业大学 | Axial pre-tightening force control device of gyro main bearing |
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Granted publication date: 20150708 Termination date: 20170527 |