CN104553566A - Method for manufacturing patterns on surface of metal sheet incremental forming workpiece - Google Patents
Method for manufacturing patterns on surface of metal sheet incremental forming workpiece Download PDFInfo
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- CN104553566A CN104553566A CN201510043447.1A CN201510043447A CN104553566A CN 104553566 A CN104553566 A CN 104553566A CN 201510043447 A CN201510043447 A CN 201510043447A CN 104553566 A CN104553566 A CN 104553566A
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Abstract
The invention discloses a method for manufacturing patterns on the surface of a metal sheet incremental forming workpiece. The method comprises the following steps: carrying out point treatment on a pattern to be processed, drawing a coordinate grid, determining the coordinates and the cycle lengths of all areas of the pattern after point treatment, calculating the feeding speeds of all areas of the pattern subjected to point treatment and the rotating speed of a main shaft, setting different rotating speeds of the main shaft and the feeding speeds in a pattern area and a non-pattern area and enabling the surface of the forming workpiece to form areas with different surface qualities, wherein the areas form various figures, patterns, characters and the like. Compared with the existing method for manufacturing the pattern by use of a marking machine, the method for manufacturing patterns on the surface of the metal sheet incremental forming workpiece has the advantages that equipment is not additionally arranged, the processing procedures are not added, any pattern can be manufactured on the formed surface, the method is simple and convenient, the production efficiency of the product is improved and the production cost is reduced.
Description
Technical field
The invention belongs to sheet metal plastic forming technology field, particularly a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces.
Background technology
At present, enterprise or research universities and colleges adopt laser mostly, microshock, the method such as to portray makes various pattern on Sheet metal forming surface, but adopt above method to need to use the special equipments such as marking machine, and directly can not make in forming process, need to increase operation, reduce working (machining) efficiency, add processing cost.Metal blank progressive molding technology, be a kind of sheet material mold-free Flexible Manufacturing Technology, adopt the thought of Layered manufacturing, the 3D solid of complexity is formed a series of two-dimensional layer along contour hierarchy slicing, every layer is shaped according to certain track, successively processes last shape.After machining, in order to the object such as making of the publicity of attractive in appearance, the enterprise on Sheet metal forming surface or label, mark, decorative pattern, pattern, word or enterprise Logo etc. can be made on metal forming surface.
Summary of the invention
The object of the present invention is to provide a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces, the method can in Sheet metal forming process direct pattern-making, improves the production efficiency of product, reduce production cost.
The technical solution adopted in the present invention is, a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces, specifically implements according to following steps:
Step 1, pattern to be processed is drawn coordinate grid, and what obtain being made up of the region varied in size reveals pattern, and the segmentation of coordinate grid is thinner, and pattern quality is higher;
Step 2, determines by coordinate grid the coordinate and the Cycle Length L that reveal each region of pattern;
Step 3, the coordinate of revealing each region on pattern determined according to step 2 and Cycle Length L, determine the feed speed F and the speed of mainshaft S that add man-hour, feed speed F and speed of mainshaft S is determined one of them by processing request, another calculates according to following formula;
L＝F/S
Wherein, F is feed speed, and the larger working (machining) efficiency of feed speed is higher, and S is the speed of mainshaft, and L is Cycle Length;
Step 4, according to the shape of part, the method determination tool heads machining path utilizing contour to process;
Step 5, the feed speed F determined at the coordinate position setting steps 3 of revealing each region on pattern and speed of mainshaft S, arranges the feed speed different from revealing area of the pattern and the speed of mainshaft at non-area of the pattern;
Step 6, with fixture by metal blank clamping on former, the controller of the progressive molding tool heads machining path input forming the equipment respectively speed of mainshaft of revealing area of the pattern and non-area of the pattern determined and feed speed and step 4 determined, controller is processed according to the machining path of input and parameter, while Sheet metal forming processing, generate word, decorative pattern or the pattern that will make at surface of the work.
Feature of the present invention is also,
Coordinate grid in step 1 imports computer drawing by manual drawing or by pattern.
In step 3, feed speed is preferably 10-1000mm/min, and the speed of mainshaft is preferably 100-8000r/min.
Feed speed and the larger pattern of speed of mainshaft gap of revealing area of the pattern and non-area of the pattern in step 5 are more clear, and the less pattern of gap is fuzzyyer, and feed speed and speed of mainshaft difference are preferably more than 3 times.
The invention has the beneficial effects as follows: a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces of the present invention, by setting the different speed of mainshaft and feed speed at area of the pattern from non-area of the pattern, metal blank is made to obtain different surface quality or Cycle Length in zones of different, these different surface quality, the region of Cycle Length defines various decorative pattern, pattern, word etc., compared with the method for existing use marking machine pattern-making, the method need not increase equipment, increase manufacturing procedure, namely any pattern can be made at profiled surface in process, more simple and convenient, improve the production efficiency of product, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces of the present invention;
Fig. 2 is a kind of method profiled surface lines figure in the surface pattern-making of metal blank incremental forming with successive wrap surfaces of the present invention;
Fig. 3 is the schematic diagram of the contour processing method of a kind of method utilization in the surface pattern-making of metal blank incremental forming with successive wrap surfaces of the present invention.
Fig. 4 is a kind of method process equipment figure in the surface pattern-making of metal blank incremental forming with successive wrap surfaces of the present invention;
Fig. 5 is the LOVE pattern after the embodiment of the present invention reveals effect process;
Fig. 6 be put into coordinate grid in the embodiment of the present invention reveal pattern.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The invention provides a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces, as shown in Figure 1, specifically implement according to following steps:
Step 1, pattern to be processed is drawn coordinate grid, and coordinate grid imports computer drawing by manual drawing or by pattern, and what obtain being made up of the region varied in size reveals pattern, and the segmentation of coordinate grid is thinner, and pattern quality is higher;
Step 2, determines by coordinate grid the coordinate and the Cycle Length L that reveal each region of pattern, and as shown in Figure 2, between adjacent longitudinal lines, the distance of corresponding points is called Cycle Length;
Step 3, the coordinate of revealing each region on pattern determined according to step 2 and Cycle Length L, determine the feed speed F and the speed of mainshaft S that add man-hour, feed speed F and speed of mainshaft S is determined one of them by processing request, another calculates according to following formula;
L＝F/S
Wherein, F is feed speed, and the larger working (machining) efficiency of feed speed is higher, and S is the speed of mainshaft, and L is Cycle Length;
As long as feed speed and the speed of mainshaft are determined according to the parameter of machining tool (Digit Control Machine Tool or single-point forming machine tool), be less than maximum feed speed and the maximum principal axis rotating speed of machining tool parameter regulation.When other parameter constants, the speed of mainshaft is different, and the surface quality on the Forming Workpiece surface obtained is different, and the speed of mainshaft is less, and its surface is more coarse; Equally, when other parameter constants, feed speed is different, and the surface quality on the Forming Workpiece surface obtained is different, and feed speed is higher, and its surface is more coarse.The preferable range of feed speed is generally 10-1000mm/min, and speed is too small, affects working (machining) efficiency, increases processing cost; Speed is excessive, and machining tool main shaft is stressed larger, and main shaft can produce larger flexural deformation, affects the machining accuracy of Forming Workpiece.The preferable range of the speed of mainshaft is generally 100-8000r/min, and when feed speed is certain, rotating speed is too small, and the flexural deformation of main shaft is larger, and the machining accuracy of Forming Workpiece is lower; Rotating speed is excessive, and lathe can produce larger vibration, affects the machining accuracy of Forming Workpiece equally.
Step 4, according to the shape of part, the method determination tool heads machining path utilizing contour well known in the art to process, as shown in Figure 3;
Step 5, the feed speed F determined at the coordinate position setting steps 3 of revealing each region on pattern and speed of mainshaft S, at non-area of the pattern, the feed speed different from revealing area of the pattern and the speed of mainshaft are set, feed speed and the larger pattern of speed of mainshaft gap more clear, the less pattern of gap is fuzzyyer, general feed speed and speed of mainshaft difference are more than 3 times, and difference is less than 3 times, and the surface roughness gap of zones of different is too small causes dim pattern;
As: the feed speed that lathe was arranged originally is 300mm/min, and the feed speed that now can set is F<100mm/min, or F>900mm/min.
Step 6, as shown in Figure 4, with fixture by metal blank clamping on Digit Control Machine Tool or single-point progressive molding lathe, the controller of the progressive molding tool heads machining path input the lathe respectively speed of mainshaft of revealing area of the pattern and non-area of the pattern determined and feed speed and step 4 determined, controller is processed according to the machining path of input and parameter, while Sheet metal forming processing, generate word, decorative pattern or the pattern that will make at surface of the work.
Principle of the present invention is: in the process of metal blank progressive molding, and the parameters such as the speed of mainshaft, feed speed, interlamellar spacing, tool heads radius are the important parameters of the surface quality affecting profiled surface.Different interlamellar spacings, tool heads radius etc., can obtain the different horizontal lines being parallel to contour direction at profiled surface.The Cycle Length of adjacent longitudinal lines is controlled by control feed speed and the speed of mainshaft, by setting the different speed of mainshaft and feed speed at area of the pattern from non-area of the pattern, make Forming Workpiece surface form the region of different surfaces quality, these regions constitute various decorative pattern, pattern, word etc.This kind of method just can complete making in forming process, need not increase equipment, or increases operation, substantially increases working (machining) efficiency, reduces processing cost.
Embodiment
With progressive molding by the metal blank side of being processed into platform, make LOVE pattern on square platform surface is example simultaneously, and concrete steps are as follows:
Step one: utilize photo-editing software that pattern LOVE is revealed process, pattern is processed into be made up of different points reveal figure, as shown in Figure 5;
Step 2: figure will be revealed and put into coordinate grid, the coordinate and the Cycle Length L that reveal each region of pattern is determined by coordinate grid, as shown in Figure 6, coordinate and the Cycle Length L of each black region is directly read, such as: the coordinate of region A is (5,13) from coordinate grid, Cycle Length is 3, the coordinate of region B is (9,11), and Cycle Length is 1;
Step 3: the coordinate of revealing regional on pattern determined according to second step and Cycle Length L, A, B two regions of picture in picture case " O " in processing, if need working (machining) efficiency higher, when the conditions permit such as the rigidity of lathe, main shaft be stressed, determine that the feed speed F=600mm/min adding man-hour is not (if having requirement to efficiency, can determine that feed speed is F=300mm/min, determine according to processing request and lathe actual conditions in a word), calculate speed of mainshaft S according to following formula;
L＝F/S
Wherein, F is feed speed, and the larger working (machining) efficiency of feed speed is higher, and S is the speed of mainshaft, and L is Cycle Length;
The speed of mainshaft S=200 obtaining A point turns/and the speed of mainshaft S=600 of min, B point turns/min;
Step 4: according to the shape of part, as shown in Figure 3, utilizes the method that contour is processed, and determines tool heads machining path;
Step 5: at speed of mainshaft S and the feed speed F in each region that coordinate position (in Fig. 5 darkened locations) setting steps three of revealing each region on pattern is determined, is arranged and the speed of mainshaft and the feed speed parameter of revealing area of the pattern (Fig. 5 empty position) and differ 3 times at non-area of the pattern;
Step 6: with fixture by metal blank clamping on single-point progressive molding lathe, respectively by progressive molding tool heads machining path input forming machine tool controller that the speed of mainshaft of revealing area of the pattern and non-area of the pattern determined and feed speed and step 4 are determined, controller is processed according to the path of input and parameter, namely while formed machining, LOVE pattern can be generated at surface of the work.
Claims (4)
1., in a method for metal blank incremental forming with successive wrap surfaces surface pattern-making, it is characterized in that, specifically implement according to following steps:
Step 1, pattern to be processed is drawn coordinate grid, and what obtain being made up of the region varied in size reveals pattern, and the segmentation of coordinate grid is thinner, and pattern quality is higher;
Step 2, determines by coordinate grid the coordinate and the Cycle Length L that reveal each region of pattern;
Step 3, the coordinate of revealing each region on pattern determined according to step 2 and Cycle Length L, determine the feed speed F and the speed of mainshaft S that add man-hour, feed speed F and speed of mainshaft S is determined one of them by processing request, another calculates according to following formula;
L＝F/S
Wherein, F is feed speed, and the larger working (machining) efficiency of feed speed is higher, and S is the speed of mainshaft, and L is Cycle Length;
Step 4, according to the shape of part, the method determination tool heads machining path utilizing contour to process;
Step 5, the feed speed F determined at the coordinate position setting steps 3 of revealing each region on pattern and speed of mainshaft S, arranges the feed speed different from revealing area of the pattern and the speed of mainshaft at non-area of the pattern;
Step 6, with fixture by metal blank clamping on former, the controller of the progressive molding tool heads machining path input forming the equipment respectively speed of mainshaft of revealing area of the pattern and non-area of the pattern determined and feed speed and step 4 determined, controller is processed according to the machining path of input and parameter, while Sheet metal forming processing, generate word, decorative pattern or the pattern that will make at surface of the work.
2. a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces according to claim 1, it is characterized in that, the coordinate grid in described step 1 imports computer drawing by manual drawing or by pattern.
3. a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces according to claim 1, it is characterized in that, in described step 3, feed speed is preferably 10-1000mm/min, and the speed of mainshaft is preferably 100-8000r/min.
4. a kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces according to claim 1, it is characterized in that, feed speed and the larger pattern of speed of mainshaft gap of revealing area of the pattern and non-area of the pattern in described step 5 are more clear, the less pattern of gap is fuzzyyer, and feed speed and speed of mainshaft difference are preferably more than 3 times.
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| CN201510043447.1A CN104553566B (en) | 2015-01-28 | 2015-01-28 | A kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces |
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| CN201510043447.1A CN104553566B (en) | 2015-01-28 | 2015-01-28 | A kind of method in the surface pattern-making of metal blank incremental forming with successive wrap surfaces |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142175B1 (en) * | 2009-05-26 | 2012-05-03 | 한국과학기술원 | Forming Method of Metal Alloy Sheet with Low Formability Using Hydroforming and Incremental Forming Process |
| JP2013215753A (en) * | 2012-04-05 | 2013-10-24 | Toyota Motor Corp | Pressing tool for metal plate upon incremental forming and pressing method for metal plate upon incremental forming |
| CN103586627A (en) * | 2012-08-17 | 2014-02-19 | 天津市加美金属家具有限公司 | Metal tool cabinet progressive forming method |
| CN104138949A (en) * | 2014-06-27 | 2014-11-12 | 江西理工大学 | Multi-point compound incremental forming device for sheet metal |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142175B1 (en) * | 2009-05-26 | 2012-05-03 | 한국과학기술원 | Forming Method of Metal Alloy Sheet with Low Formability Using Hydroforming and Incremental Forming Process |
| JP2013215753A (en) * | 2012-04-05 | 2013-10-24 | Toyota Motor Corp | Pressing tool for metal plate upon incremental forming and pressing method for metal plate upon incremental forming |
| CN103586627A (en) * | 2012-08-17 | 2014-02-19 | 天津市加美金属家具有限公司 | Metal tool cabinet progressive forming method |
| CN104138949A (en) * | 2014-06-27 | 2014-11-12 | 江西理工大学 | Multi-point compound incremental forming device for sheet metal |
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