CN204935265U - The compensation arrangement that multi-station machine tool cutting precision is inconsistent - Google Patents
The compensation arrangement that multi-station machine tool cutting precision is inconsistent Download PDFInfo
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- CN204935265U CN204935265U CN201520466612.XU CN201520466612U CN204935265U CN 204935265 U CN204935265 U CN 204935265U CN 201520466612 U CN201520466612 U CN 201520466612U CN 204935265 U CN204935265 U CN 204935265U
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- bgreatt
- gre
- main shaft
- bgrea
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Abstract
The compensation arrangement </b><bGreatT.Gre aT.GT that <b> multi-station machine tool cutting precision is inconsistent, be characterized in by multispindle automatic machine main spindle's recognition device, cutter compensation tables of data, NC cutting tool drive unit is formed, wherein main spindle's recognition device includes switch frame (</b><bGreatT.Gre aT.GT5) </b><bGreatT.Gre aT.GT, noncontacting switch </b><bGreatT.Gre aT.GT (4) </b><bGreatT.Gre aT.GT and sensor block </b><bGreatT.Gre aT.GT (3) the </b><bGreatT.Gre aT.GT be contained on machine tool chief axis drum </b><bGreatT.Gre aT.GT (1) </b><bGreatT.Gre aT.GT, Data Source in cutter compensation tables of data is got by the statistics of lathe actual trial cut accessory size error, servomotor (</b><bGreatT.Gre aT.GT1</b><bGrea tT.GreaT.GT) in NC cutting tool drive unit is fixed on carriage saddle (</b><bGreatT.Gre aT.GT2</b><bGrea tT.GreaT.GT), the nut of ball-screw (</b><bGreatT.Gre aT.GT3</b><bGrea tT.GreaT.GT) is fixed on guide rail (</b><bGreatT.Gre aT.GT4</b><bGrea tT.GreaT.GT), guide rail is fixed with knife rest (</b><bGreatT.Gre aT.GT5</b><bGrea tT.GreaT.GT), knife rest is installed cutting tool (</b><bGreatT.Gre aT.GT6</b><bGrea tT.GreaT.GT).The utility model carries out spindle error compensation by controlling cutter, not only remains lathe original function, also improves the precision of work piece, shorten the production cycle.</b>
Description
Technical field
The utility model relates to a kind of multistation Metal Cutting Machine Tool and improves the device of part processing precision, is particularly the inconsistent compensation arrangement of a kind of multi-station machine tool cutting precision, belongs to the design and manufacturing technology field of multi-station machine tool.
Background technology
There are millions of lathes in current China, and wherein multiple spindle lathe, unit mahine etc. have played important function in Chinese national economy construction, is used widely in industries such as automobile, bearing, military project, textile machines.
High accuracy, high efficiency are the targets of machining long-sought, but in the Efficient lathe such as multispindle automatic machine, turntable unit mahine, precision and efficiency are again the targets of relative contradiction, Efficient lathe is generally many main shafts, multistation is processed simultaneously, high efficiency is reached by the method for processes overlap, just there are the initial error of processing and rigging error etc. during fabrication by the many main shafts of what, multi-station machine tool, the accessory size that lathe each station process produces inconsistent, the machining accuracy decline of lathe.
Take multispindle automatic machine as row, the error that multispindle automatic machine spindle hub produces in the fabrication process can have influence on precision during machine tooling part, and common digital control system can only compensate the wearing and tearing of cutter, and the initial error of each station main shaft that lathe manufacture brings can not be compensated.
Summary of the invention
The purpose of this utility model is just that the common numerically controlled lathe existed for prior art can only lean on the wearing and tearing of system to cutter to compensate, and the initial error problem that multi-station machine tool manufacture brings can not be compensated, after repetition test and research, provide the compensation arrangement that a kind of multi-station machine tool cutting precision is inconsistent.The utility model is when machine cut, and the original foozle of each main shaft uses the way of NC compensation respectively, revises cutter, reaches part and adds the consistent of Chinese musical scale, thus improve the precision of processing parts.The utility model take multispindle automatic machine as row, this positional error compensation device provided, carry out main shaft identification by three-way switch, positional information during every root main shaft work is passed to the digital control system of lathe, again by system to cutter spindle error compensation rate, by cutter, the uniformity of accessory size reaches to the correction of every root main spindle's error.
The compensation arrangement that this multi-station machine tool cutting precision that the utility model provides is inconsistent, is characterized in by multispindle automatic machine main spindle's recognition device, cutter compensation tables of data, and NC cutting tool drive unit is formed.
The sensor block 3 that main spindle's recognition device includes switch frame 5, noncontacting switch 4 and is contained on machine tool chief axis drum 1, wherein switch frame 5 is arranged on the side of main shaft drum 1, switch frame 5 is provided with 3 noncontacting switches 4, the sensor block 3 be contained on main shaft drum 1 has 6 groups, by the signal combination of 3 noncontacting switches 4 and 6 groups of sensor blocks 3, identify the operating position of main shaft 2, lathe often completes an operation, sensor block 3 is with main shaft drum 1 turn 60 degree, sensor block 3 forwards the position of noncontacting switch 4 to, and noncontacting switch 4 sends a signal of telecommunication.3 noncontacting switches 4 and six groups of sensor blocks 3 have multiple combination, the utility model adopts 6 kinds of combinations wherein to represent 6 main shafts, establishment main spindle's recognition coding table, like this, machine tool numerical control system will know that main shaft cuts at that station.
Data Source in cutter compensation tables of data is got by the statistics of lathe actual trial cut accessory size error, there are main spindle's recognition coding table and cutter compensation data, part on a certain main shaft is when this station cuts, digital control system gives a correction value to this tool position, and the size of processing parts is revised.
Servomotor 6 in NC cutting tool drive unit is fixed on carriage saddle 7, and the nut of ball-screw 8 is fixing on the rail 9, guide rail is fixed with knife rest 10, knife rest is installed cutting tool 11.When main shaft 1 forwards numerically-controlled slide cutting position to, digital control system presses offset value correction tool position, thus revises the processing dimension of part.
The principle of the compensation arrangement that this multi-station machine tool cutting precision that the utility model provides is inconsistent is.
Multi-station machine tool or multiaxis automatic machine increase main shaft recognition device, establishment main spindle's recognition coding table, and change each station cutter rack into numerically-controlled slide, increase digital control system;
Actual trial cut is carried out to each station machining accuracy inconsistency, thus finds the original foozle of lathe, form cutter compensation Value Data table.
During lathe work, when machine tool chief axis forwards a certain station to, digital control system is before working procedure, first according to main shaft recognition coding table, find the cutting position of main shaft, from cutter compensation Value Data table, extract offset again, rerun after revising cutter position procedure, makes spindle error revised.
Compared with prior art, the beneficial effects of the utility model are.
The utility model compensates on the basis of tool wear at centre numerically controlled lathe and has added switch identification main spindle's error, control cutter and carry out spindle error compensation, not only remain lathe original function, also there is brand-new lifting technically, improve the precision of work piece, shorten the production cycle, enhance productivity.
Accompanying drawing explanation
Fig. 1 is main spindle's recognition device structural representation.
Fig. 2 A and Fig. 2 B is main spindle's recognition principle schematic diagram and main spindle's recognition coding table.
Fig. 3 A and Fig. 3 B is cutter compensation tables of data.
Fig. 4 is NC cutting tool driving device structure schematic diagram.
Fig. 5 is the comparison of machining accuracy before and after machine tool chief axis error compensation.
Mark in figure: main shaft drum 1 ﹑ main shaft 2 ﹑ sensor block 3, noncontacting switch 4 ﹑ switch frame 5 ﹑ servomotor 6 ﹑ carriage saddle 7 ﹑ ball-screw 8 ﹑ guide rail 9 ﹑ knife rest 10 ﹑ cutting tool 11.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
Embodiment 1.
C2150X6 six-shaft automatic lathe is the bar processing multiaxis automatic machine of cam production, through numerical control transformation, six knife rests change numerically-controlled slide into, camshaft changes by driven by servomotor, add main shaft recognition device and multistation error compensation function simultaneously, the performance of lathe and machining accuracy are improved comprehensively.
First on C2150X6 six-shaft automatic lathe, increase main shaft recognition device, establishment main spindle's recognition coding table, and change each station cutter rack into numerically-controlled slide, increase digital control system; Actual trial cut is carried out to each station machining accuracy inconsistency, thus finds the original foozle of lathe, form cutter compensation Value Data table; During lathe work, when machine tool chief axis forwards a certain station to, digital control system is before working procedure, first according to main shaft recognition coding table, find the cutting position of main shaft, from cutter compensation Value Data table, extract offset again, rerun after revising cutter position procedure, makes spindle error revised.
The inconsistent compensation arrangement of C2150X6 six-shaft automatic lathe cutting precision is by multispindle automatic machine main spindle's recognition device, cutter compensation tables of data, and digital control system and cutter driving device are formed.
As shown in Figure 1, the sensor block 3 that main spindle's recognition device includes switch frame 5, noncontacting switch 4 and is contained on machine tool chief axis drum 1, wherein switch frame 5 is arranged on the side of main shaft drum 1, switch frame 5 is provided with 3 noncontacting switches 4, and the sensor block 3 be contained on main shaft drum 1 has 6 groups.
As shown in Figure 2, main spindle's recognition principle and main spindle's recognition coding table, by the signal combination of 3 noncontacting switches 4 and 6 groups of sensor blocks 3, identify the operating position of main shaft 2, lathe often completes an operation, sensor block 3 is with main shaft drum 1 turn 60 degree, and sensor block 3 forwards the position of noncontacting switch 4 to, and noncontacting switch 4 sends a signal of telecommunication.3 noncontacting switches 4 and six groups of sensor blocks 3 have multiple combination, the utility model adopts 6 kinds of combinations wherein to represent 6 main shafts, establishment main spindle's recognition coding table, like this, machine tool numerical control system will know that main shaft cuts at that station.
As shown in Figure 3 A and Figure 3 B, for certain multispindle automatic machine cut time, the cutter compensation tables of data on a station.Data Source in cutter compensation tables of data is got by the statistics of lathe actual trial cut accessory size error, there are main spindle's recognition coding table and cutter compensation data, part on a certain main shaft is when this station cuts, digital control system gives a correction value to this tool position, and the size of processing parts is revised.For six-shaft automatic lathe, have six stations to process simultaneously, have 6 cutter compensation tables of data, have 6 groups of 36 offsets, Fig. 3 A is one group of offset wherein, and Fig. 3 B is all the other 5 groups of 30 offsets.
As shown in Figure 4, the servomotor 6 in NC cutting tool drive unit is fixed on carriage saddle 7, and the nut of ball-screw 8 is fixing on the rail 9, guide rail is fixed with knife rest 10, knife rest is installed cutting tool 11.When main shaft 2 forwards numerically-controlled slide cutting position to, digital control system presses offset value correction tool position, thus revises the processing dimension of part.With centre numerically controlled lathe " cutter is mended " can only carry out a fixing correction value unlike, for this cutter that the utility model provides, when other main shaft forwards to, digital control system extracts the offset of another root main shaft to revise cutter, such lathe completes a fabrication cycles, cutter compensates 6 different numerical value to six main shafts, and 6 main shafts just have 36 different offsets to 6 cutters.
Fig. 5 is the comparison of machining accuracy before and after machine tool chief axis error compensation, C2150X6 six-shaft automatic lathe, before transformation, processing parts dimensional uniformity is 0.1mm, use multi-station machine tool error compensation function with numerically-controlled slide fine finishining after numerical control transformation, processing parts dimensional uniformity brings up to 0.02mm.
Claims (1)
1. the compensation arrangement that multi-station machine tool cutting precision is inconsistent, is characterized in that by multispindle automatic machine main spindle's recognition device, cutter compensation tables of data, and NC cutting tool drive unit is formed, wherein:
Main spindle's recognition device includes switch frame (5), noncontacting switch (4) and is contained in the sensor block (3) on machine tool chief axis drum (1); wherein switch frame (5) is arranged on the side of main shaft drum (1); switch frame (5) is provided with 3 noncontacting switches (4); the sensor block (3) be contained on main shaft drum (1) has 6 groups; work out main spindle's recognition coding table by the signal combination of 3 noncontacting switches (4) and 6 groups of sensor blocks (3), identify the operating position of main shaft 2;
Data Source in cutter compensation tables of data is got by the statistics of lathe actual trial cut accessory size error, by main spindle's recognition coding table and cutter compensation data, part on a certain main shaft is when this station cuts, digital control system gives a correction value to this tool position, and the size of processing parts is revised;
Servomotor (6) in NC cutting tool drive unit is fixed on carriage saddle (7), the nut of ball-screw (8) is fixed on guide rail (9), guide rail is fixed with knife rest (10), knife rest is installed cutting tool (11), when main shaft (2) forwards numerically-controlled slide cutting position to, digital control system presses offset value correction tool position, thus revises the processing dimension of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520466612.XU CN204935265U (en) | 2015-07-02 | 2015-07-02 | The compensation arrangement that multi-station machine tool cutting precision is inconsistent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520466612.XU CN204935265U (en) | 2015-07-02 | 2015-07-02 | The compensation arrangement that multi-station machine tool cutting precision is inconsistent |
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| CN204935265U true CN204935265U (en) | 2016-01-06 |
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| CN201520466612.XU Withdrawn - After Issue CN204935265U (en) | 2015-07-02 | 2015-07-02 | The compensation arrangement that multi-station machine tool cutting precision is inconsistent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907891A (en) * | 2015-07-02 | 2015-09-16 | 刘巍巍 | Compensation method for inconsistency of cutting accuracy for multi-station machine tool and device thereof |
| CN114397857A (en) * | 2022-01-25 | 2022-04-26 | 北京迪蒙数控技术有限责任公司 | Six-axis numerical control error compensation method |
-
2015
- 2015-07-02 CN CN201520466612.XU patent/CN204935265U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907891A (en) * | 2015-07-02 | 2015-09-16 | 刘巍巍 | Compensation method for inconsistency of cutting accuracy for multi-station machine tool and device thereof |
| CN114397857A (en) * | 2022-01-25 | 2022-04-26 | 北京迪蒙数控技术有限责任公司 | Six-axis numerical control error compensation method |
| CN114397857B (en) * | 2022-01-25 | 2024-04-16 | 北京迪蒙数控技术有限责任公司 | Six-axis numerical control error compensation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20170704 |
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| AV01 | Patent right actively abandoned |