CN103212817A - Z-axis servo system applied in laser cutting of medical stent - Google Patents
Z-axis servo system applied in laser cutting of medical stent Download PDFInfo
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- CN103212817A CN103212817A CN2012100157704A CN201210015770A CN103212817A CN 103212817 A CN103212817 A CN 103212817A CN 2012100157704 A CN2012100157704 A CN 2012100157704A CN 201210015770 A CN201210015770 A CN 201210015770A CN 103212817 A CN103212817 A CN 103212817A
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Abstract
The invention relates to a z-axis servo system applied in laser cutting of a medical stent. The system is characterized by comprising a z-axis movable plate (2), a cutting head (4), a cutting nozzle (1), a precise height measuring head (5), a rotary shaft (6) and a workbench (10). Compared with a conventional production device for the medical stent, the z-axis servo system applied in the laser cutting of the medical stent provided by the invention has the advantages that the relative distance between the cutting nozzle and a tube is enabled to be constant through compensating caliber tolerance change in real time; the distance between each point on the tube of the medical stent and the cutting nozzle can be measured on line; and the processing precision and the qualified rate of the medical stent are effectively improved.
Description
Technical field
The present invention relates to a kind of Z axle servomechanism that is applied in the medical support laser cutting, belong to medical support laser equipment field.
Background technology
Along with the fast development of material science and accurate micro-processing technology, medical timbering material kind is more and more, and more common have nonmetallic materials such as metal materials such as stainless steel 316L, Nitinol, cobalt-base alloys, pure iron, magnesium alloy, and macromolecule.Because medical support plays the hemangiectasis wall to stop vessel retraction even to cause and block the generation that causes various sufferers in blood vessel, require on the medical support on each muscle feature structural dimension parameter one to show and keep on the whole medical support each point tension force identical, this proposes requirements at the higher level to medical support processing technology.General medical support all adopts seamless tubular goods to process, because the insertion type operation is not comprehensive in global evolution, the medical material technical development is also unbalanced, in the world the tubing that is used as medical support do not had comparatively unified technical standard at present, and stipulate according to correlation experience oneself by medical support research institution or medical support manufacturer that generally medical support tubing provider stipulates to provide corresponding medical support according to these.Consider that medical support seamless tubular goods adopts technological method for processing such as drawing to produce, because the defective of technology must be difficult to guarantee caliber tolerance uniformity on whole (general length can above 2 meters) medical support tubing.And the medical support tubing caliber tolerance integral body of giving medical support manufacturer need be controlled at ± the 10um scope in, in fact owing to process and the context of detection technical deficiency, can change greatly even overproof problem at the difference place of whole medical support tubing caliber inevitably.
In the medical support laser cutting parameter, guarantee the whole crudy of features such as all connecting rods, muscle, circular arc on the whole medical support, the cutting head of strict control cutting head lower end and medical support tubing distance are maintained fixed constant, focus is in level altitude on the tubing in the time of so just guaranteeing laser and medical support tubing effect, thereby guarantees the uniformity of each feature machining precision on the whole medical support.
Whether conventional medical support pipe workpiece detection method is with the spiral micrometer some points on the tubing to be carried out contact type measurement by artificial, meet the requirements to judge this tubing caliber tolerance.This measuring method is owing to adopt manual detection, and in testing process, frequently contact pipe outer surface because of testing tool, have and cause medical support tubing wearing and tearing, distortion equivalent risk, and this detection method, can not be able to detect on the tubing each section and go up the caliber tolerance, must cause the position caliber overproof but omitted situation about checking.And conventional medical support processing method, can't adapt to medical support tubing caliber changes, can only directly process tubing, therefore cause the medical stent size precision in processing back to be difficult to control, as long as it is overproof to occur a characteristic size on the medical support, must cause whole medical support to scrap, finally cause medical support production qualification rate low, cause the great amount of cost waste.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of Z axle servomechanism that is applied in the medical support laser cutting, distance by the relative cutting head of each point on the medical support tubing of on-line measurement, and should the distance with medical support cutting technique in require the relative tubing nominal distance of cutting head value to compare, calculate both deviates, and this deviate fed back to control system, at next step this point is added man-hour, control system will compensate this deviate automatically, by the relative distance of Z axle correction cutting head apart from this point, even thereby guarantee to revise the relative tubing of cutting head apart from being steady state value by automatic Z axle because of this caliber changes also, guaranteed that finally medical support tubing cutting laser focal is constant, improved medical support machining accuracy and medical support production qualification rate effectively; Solved effectively in the production of conventional medical support because of can't change that the medical support machining accuracy brought of controling effectively is low, stability is not high to medical support tubing caliber, waste of material greatly, problem such as production cost height.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is as follows:
A kind of Z axle servomechanism that is applied in the medical support laser cutting is characterized in that, comprises that the Z axle moves plate, cutting head, cutting head, precise height gauge head, rotating shaft and workbench; On workbench, be provided with moving plate of X-axis and the moving plate of Z axle, rotating shaft is arranged on the moving plate of X-axis, can moves the plate move left and right with X-axis, cutting head and precise height gauge head are arranged on the moving plate of Z axle, can move up and down with the moving plate of Z axle, are provided with cutting head on cutting head, are used for incising pipes.
Be provided with column on workbench, the moving plate of described Z axle is fixed on the described column.
Right-hand member at described rotating shaft is provided with chuck, is used for clamping tubing; The central shaft of described rotating shaft is a hollow-core construction, passes therethrough for tubing.
On workbench, after the rotating shaft, be provided with supporting module, be used to support tubing.
On the workbench, be provided with clamper before the rotating shaft, be used for clamping tubing.
On moving plate of described X-axis and the moving plate of Z axle, be respectively equipped with and be provided with servomotor, be used to drive the moving plate move left and right of X-axis, drive the moving plate of Z axle and move up and down.
Preferably, described Z axle servomechanism also comprises bracing frame, is used to support whole Z axle servomechanism.
Preferably, described Z axle servomechanism also comprises control system, is used to control the action of described Z axle servomechanism.
Described control system is positioned at the below of bracing frame.
Described control system comprises industrial computer, display, keyboard, mouse, controller and driver.
Z axle servomechanism directly is fixed on the granite column, whole formation Z axle, and the Z axle has the function of moving up and down.In addition, because laser cutting head is fixed on the moving plate of Z axle, vertical gauge head has been installed simultaneously on the moving plate of Z axle, gauge head can be measured the relative altitude value of tubing apart from cutting head in real time, and this value fed back to control system, control system is controlled the Z axle conversely and is driven cutting head small movements up and down, thereby adapt to support tubing caliber tolerance variation automatically, this motion---is measured the mechanism that---feedback---adjusted automatically, can be referred to as servomechanism, and this servomechanism is based on the Z axle module, therefore is referred to as Z axle servomechanism.
A kind of Z axle servomechanism that is applied in the medical support laser cutting provided by the invention, this system is by the distance of the relative cutting head of each point on the medical support tubing of on-line measurement, and should the distance with medical support cutting technique in require the relative tubing nominal distance of cutting head value to compare, calculate both deviates, and this deviate fed back to control system, at next step this point is added man-hour, control system will compensate this deviate automatically, by the relative distance of Z axle correction cutting head apart from this point, even thereby guarantee to revise the relative tubing of cutting head apart from being steady state value by automatic Z axle because of this caliber changes also, guaranteed that finally medical support tubing cutting laser focal is constant, improved medical support machining accuracy and medical support production qualification rate effectively.
A kind of Z axle servomechanism that is applied in the medical support laser cutting provided by the invention than conventional medical support production equipment, has following advantage:
1) the Z axle system of legacy equipment does not possess by real-Time Compensation caliber tolerance variation and guarantees that cutting head and tubing relative distance keep constant;
2) the Z axle system does not have the function of the distance of the relative cutting head of each point on the medical support tubing of on-line measurement in the legacy equipment;
3) in the conventional method in order to improve medical support qualification rate as far as possible, take the diameter of every support tubing of artificial contact type measurement, this method causes medical support pipe outer surface wearing and tearing, bending to write equivalent risk, and each puts corresponding actual caliber can not all to detect medical support tubing by this method, promptly enable to detect the straight data of part caliber, these data also are difficult to feed back to control system, thereby in time by the relative tubing distance value of Z axial adjustment cutting head.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structure chart of Z axle servomechanism;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the design sketch of Z axle servomechanism on the support laser cutting machine;
1 is cutting head among the figure, and 2 are the moving plate of Z axle, and 3 is column, and 4 is cutting head, and 5 is the precise height gauge head, and 6 is rotating shaft, and 7 is supporting module, and 8 is tubing, and 9 are the moving plate of X-axis, and 10 is workbench, and 11 is bracing frame, and 12 is control system, and 13 is clamper.
The specific embodiment
Embodiment
Shown in Fig. 1-2, a kind of Z axle servomechanism that is applied in the medical support laser cutting comprises cutting head 1, the moving plate 2 of Z axle, column 3, cutting head 4, precise height gauge head 5, rotating shaft 6, supporting module 7, the moving plate 9 of X-axis, workbench, bracing frame 11, control system 12 and clamper 13.On workbench 10, be provided with moving plate 9 of X-axis and the moving plate 2 of Z axle, rotating shaft 6 is arranged on the moving plate 9 of X-axis, can moves plate 9 move left and right with X-axis, cutting head 4 and precise height gauge head 5 are arranged on the moving plate 2 of Z axle, can move up and down with the moving plate 2 of Z axle, on cutting head 4, be provided with cutting head 1, be used for incising pipes 8.Be provided with column 3 on workbench 10, the moving plate 2 of Z axle is fixed on the described column 3.Right-hand member at described rotating shaft 6 is provided with chuck, is used for clamping tubing 8; The central shaft of described rotating shaft 6 is a hollow-core construction, passes therethrough for tubing 8.On workbench 10, after the rotating shaft 6, be provided with supporting module 7, be used to support tubing 8.On the workbench 10, be provided with clamper 13 before the rotating shaft 6, be used for clamping tubing 8.Bracing frame 11 is used to support whole Z axle servomechanism.Control system 12 is positioned at the below of bracing frame 11, is used to control the action of described Z axle servomechanism; Control system 12 comprises industrial computer, display, keyboard, mouse, controller and driver.
When work, tubing 8 passes rotating shaft, and the chuck that is rotated on the axle 6 clamps,, rotating shaft moves right with the moving plate 0 of X-axis, realizes feed function; Rotating shaft 6 is by the chuck clamping tubing 8 of its right-hand member, clamp and unclamp action and realize control by pneumatic system, and control system is controlled the ventilation of pneumatic system and is closed gas by the I/O module, thus control chuck tensioning and unclamping, and the then corresponding tubing of chuck tensioning is clamped.Supporting module 7 supports tubing 8, clamper 13 clamping tubing 8, cutting head 1 incising pipes 8.Precise height gauge head 5 on the Z axle be in tubing 8 directions of feed directly over, measure the distance h of the relative cutting head 1 of tubing 8 upper surfaces in real time, and this distance h value is transferred to control system 12 fast, the cutting head of setting on real-time relatively this distance h value of control system 12 generals and the technology 1 is apart from the deviation of the nominal H value of tubing 8 upper surfaces, compare and will revise that this puts the distance h of corresponding cutting head 1 on the tubing 8 after the deviation automatically ', control system 12 will be adjusted the distance value of this point of relative tubing in real time according to revised h ' value.
In this way, even difference caliber tolerance changes on the tubing 8, all can adjust the actual distance value of corresponding points on the cutting head 1 relative tubing 8 by servo-actuated Z axle system in real time, make the final height distance of cutting head 1 relative tubing 8 that guarantees be worth constant, thereby relative tubing 8 each points of laser spot immobilize in the assurance laser processing procedure, can not change because of tubing 8 each point caliber tolerance variation, improved medical rack outer surface crudy effectively, reduced the inwall dross, improved the dimensioned precision, finally make the whole crudy of medical support improve, qualification rate significantly improves, degradation under the medical support production cost.
Above embodiment purpose is to illustrate the present invention, and unrestricted protection scope of the present invention, all application that come by simple change of the present invention all drop in protection scope of the present invention.
Claims (10)
1. a Z axle servomechanism that is applied in the medical support laser cutting is characterized in that, comprises that the Z axle moves plate (2), cutting head (4), cutting head (1), precise height gauge head (5), rotating shaft (6) and workbench (10); On workbench (10), be provided with moving plate (9) of X-axis and the moving plate (2) of Z axle, rotating shaft (6) is arranged at the moving plate (9) of X-axis and goes up, can move plate (9) move left and right with X-axis, cutting head (4) and precise height gauge head (5) are arranged at the moving plate (2) of Z axle and go up, can move up and down with the moving plate (2) of Z axle, on cutting head (4), be provided with cutting head (1), be used for incising pipes (8).
2. Z axle servomechanism according to claim 1 is characterized in that, is provided with column (3) on workbench (10), and the moving plate (2) of described Z axle is fixed on the described column (3).
3. Z axle servomechanism according to claim 1 is characterized in that, is provided with chuck at the right-hand member of described rotating shaft (6), is used for clamping tubing (8); The central shaft of described rotating shaft (6) is a hollow-core construction, passes therethrough for tubing (8).
4. Z axle servomechanism according to claim 1 is characterized in that,, rotating shaft (6) last at workbench (10) is provided with supporting module (7) afterwards, is used to support tubing (8).
5. Z axle servomechanism according to claim 1 is characterized in that,, rotating shaft (6) last at workbench (10) is provided with clamper (13) before, is used for clamping tubing (8).
6. according to the described Z axle of claim 1-5 servomechanism, it is characterized in that, on moving plate (9) of described X-axis and the moving plate (2) of Z axle, be respectively equipped with servomotor, be used to drive moving plate (9) move left and right of X-axis, drive the moving plate (2) of Z axle and move up and down.
7. according to the described Z axle of claim 1-5 servomechanism, it is characterized in that described Z axle servomechanism also comprises bracing frame (11), be used to support whole Z axle servomechanism.
8. according to the described Z axle of claim 1-5 servomechanism, it is characterized in that described Z axle servomechanism also comprises control system (12), is used to control the action of described Z axle servomechanism.
9. Z axle servomechanism according to claim 8 is characterized in that described control system (12) is positioned at the below of bracing frame (11).
10. Z axle servomechanism according to claim 9 is characterized in that described control system (12) comprises industrial computer, display, keyboard, mouse, controller and driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100157704A CN103212817A (en) | 2012-01-19 | 2012-01-19 | Z-axis servo system applied in laser cutting of medical stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100157704A CN103212817A (en) | 2012-01-19 | 2012-01-19 | Z-axis servo system applied in laser cutting of medical stent |
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| Publication Number | Publication Date |
|---|---|
| CN103212817A true CN103212817A (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100157704A Pending CN103212817A (en) | 2012-01-19 | 2012-01-19 | Z-axis servo system applied in laser cutting of medical stent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658980A (en) * | 2013-11-27 | 2014-03-26 | 武汉法利莱切割系统工程有限责任公司 | Main unit of square tube laser cutting machine |
| CN113560716A (en) * | 2021-09-22 | 2021-10-29 | 常州英诺激光科技有限公司 | Rotary laser processing equipment for precision instrument |
| CN113732485A (en) * | 2021-09-22 | 2021-12-03 | 常州英诺激光科技有限公司 | High-precision laser rotation machining method |
| CN114985959A (en) * | 2022-05-06 | 2022-09-02 | 昆山允可精密工业技术有限公司 | Five laser cutting machines of surgical instruments |
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| US5811754A (en) * | 1994-06-02 | 1998-09-22 | Mitsubishi Denki Kabushiki Kaisha | Optical processing method and apparatus for carrying out the same |
| JP2002001563A (en) * | 2000-06-27 | 2002-01-08 | Toshiba Tec Corp | Laser processing apparatus and its method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658980A (en) * | 2013-11-27 | 2014-03-26 | 武汉法利莱切割系统工程有限责任公司 | Main unit of square tube laser cutting machine |
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| CN113560716A (en) * | 2021-09-22 | 2021-10-29 | 常州英诺激光科技有限公司 | Rotary laser processing equipment for precision instrument |
| CN113732485A (en) * | 2021-09-22 | 2021-12-03 | 常州英诺激光科技有限公司 | High-precision laser rotation machining method |
| CN113560716B (en) * | 2021-09-22 | 2021-12-14 | 常州英诺激光科技有限公司 | Rotary laser processing equipment for precision instrument |
| CN114985959A (en) * | 2022-05-06 | 2022-09-02 | 昆山允可精密工业技术有限公司 | Five laser cutting machines of surgical instruments |
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Application publication date: 20130724 |