CN109926737B - Tab forming method - Google Patents
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- CN109926737B CN109926737B CN201910298081.0A CN201910298081A CN109926737B CN 109926737 B CN109926737 B CN 109926737B CN 201910298081 A CN201910298081 A CN 201910298081A CN 109926737 B CN109926737 B CN 109926737B
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Abstract
The invention provides a tab forming method, and relates to the technical field of battery manufacturing. A tab forming method comprises the following steps: placing a material belt on a feeding device of a laser cutting machine, wherein the material belt can move along with the feeding device according to a preset material belt walking path; a cutting device of the laser cutting machine cuts the material belt according to a preset laser walking path, wherein the laser walking path is an 8-shaped path; the cutting device can cut a zigzag cutting path on the material belt moving according to the material belt traveling path according to the laser traveling path so as to cut tabs on the material belt. The material belt is cut in a laser cutting mode through the 8-shaped path, the problem that the laser cutting area is large and fast due to the fact that the cutting mode in the prior art is effectively relieved, and the problems that the stability of the material belt is poor and the cutting precision and the cutting efficiency of the lugs are affected are solved.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a tab forming method.
Background
In a conventional laser cutting device, a cutting track of laser is continuous, and the laser completes the cutting of the tab through a continuous and symmetrical cutting path.
As shown in fig. 1, in the conventional tab cutting method, a strip (not shown) is fed in a certain direction, and a tab is cut on the strip by a laser in the direction of an arrow. In the traditional process, when the tab is cut by laser, the tab is cut by the laser after five paths. Specifically, the laser of the paths 1 and 5 is fixed at the original point, the material belt is self-fed, and the bottom transverse edge of the tab is cut; paths 2 and 4 are overlapped with the speed (path) of the material belt through the change of the laser speed (track) to cut out the bevel edge of the pole lug and a connecting circular arc (circular arc chamfer) between the bevel edge and the transverse edge of the bottom; the path 3 cuts out the lateral edges of the tab, i.e., the width of the tab.
As shown in fig. 2, the path of the conventional laser is shown, the first cutting path and the fifth cutting path respectively stay at the original points (1 and 5), the material belt is self-fed, and the bottom transverse edge of the tab is cut; the second cutting path (2) and the fourth cutting path (4) cut out the bevel edge of the pole lug (when the chamfer requirement exists, the chamfer can be cut out by changing the laser advancing speed), and the third cutting path (3) cuts out the width of the pole lug.
However, the laser cutting area of the traditional laser cutting mode is large, the cutting path is wide, the laser cutting speed is high, the material belt is easy to shake, the stability of the material belt is seriously influenced, and the cutting precision and the efficiency of the tab are further influenced.
Based on the above problems, it is very important to provide a laser cutting method capable of cutting the tab with high efficiency and high precision.
Disclosure of Invention
The invention aims to provide a tab forming method, which aims to solve the problems that a cutting mode in the prior art causes a large laser cutting area and high speed, so that a material belt is poor in stability, and the cutting precision and efficiency of tabs are influenced.
In order to solve the technical problems, the technical means adopted by the invention are as follows:
the invention provides a tab forming method, which comprises the following steps:
placing a material belt on a feeding device of a laser cutting machine, wherein the material belt can move along with the feeding device according to a preset material belt walking path;
a cutting device of the laser cutting machine cuts the material belt according to a preset laser walking path, wherein the laser walking path is an 8-shaped path;
the cutting device can cut a zigzag cutting path on the material belt moving according to the material belt traveling path according to the laser traveling path so as to cut tabs on the material belt.
As a further technical solution, the "8" shaped path includes the following seven path stages:
a first path segment, the cutting device staying at an original point;
the cutting device walks to a first preset position from an original point in the left-lower direction;
a third path segment, wherein the cutting device walks from the first preset position to a second preset position in a right-down direction;
a fourth road diameter section, wherein the cutting device walks leftwards from the second preset position to a third preset position;
the cutting device walks to a fourth preset position from the third preset position to the right upper direction;
the cutting device travels to the original point from the fourth preset position in the left-upper direction;
a seventh road diameter section, the cutting device staying still at the original point;
the first road section, the second road section, the third road section, the fourth road section, the fifth road section, the sixth road section and the seventh road section are sequentially connected to form the 8-shaped path.
As a further technical solution, the "8" shaped path includes the following seven path stages:
a first path segment, the cutting device staying at an original point;
the cutting device walks to a first preset position from an original point to the right lower direction;
a third path segment, wherein the cutting device walks from the first preset position to a second preset position in a left-lower direction;
a fourth road diameter section, wherein the cutting device walks rightwards from the second preset position to a third preset position;
the cutting device walks to a fourth preset position from the third preset position in the left-upper direction;
the cutting device walks to the original point from the fourth preset position to the right upper direction;
a seventh road diameter section, the cutting device staying still at the original point;
the first road section, the second road section, the third road section, the fourth road section, the fifth road section, the sixth road section and the seventh road section are sequentially connected to form the 8-shaped path.
As a further technical solution, a connection line between the first preset position and the fourth preset position and a connection line between the second preset position and the third preset position are parallel to each other.
As a further technical solution, a connection line between the original point and the first preset position and a connection line between the original point and the fourth preset position are symmetrical with respect to a center line of a connection line between the second preset position and the third preset position.
As a further technical solution, a cross point between a connection line between the first preset position and the second preset position and a connection line between the fourth preset position and the third preset position is a midpoint of the connection line between the first preset position and the second preset position, and the cross point is a midpoint of the connection line between the fourth preset position and the third preset position.
As a further technical scheme, the feeding speed of the feeding device is constant.
As a further technical solution, the zigzag cutting path sequentially comprises the following stages:
the extension direction of the first bottom transverse edge section is parallel to the moving direction of the material belt;
a first end of the first arc segment is connected and tangent with the first bottom transversal edge segment;
the first bevel edge section is connected and tangent with the second end of the first circular arc section, and the first bevel edge section and the first circular arc section are both positioned on the same side of the first bottom transverse edge section;
the transverse edge section is connected with the first oblique edge section and is parallel to the first bottom transverse edge section;
the second oblique edge section is connected with the transverse edge section, and the second oblique edge section and the first oblique edge section are symmetrical about the central line of the transverse edge section;
a first end of the second arc section is connected and tangent with the second oblique edge section, and the second arc section and the first arc section are symmetrical about the center line of the transverse edge section;
and the second bottom transverse edge section is connected and tangent with the second end of the second circular arc section.
As a further technical solution, each path stage in the "8" shaped path corresponds to each stage in the "several" shaped cutting path.
As a further technical solution, the "zigzag" cutting path is a vector sum of the material belt traveling path and the laser traveling path.
Compared with the prior art, the tab forming method provided by the invention has the technical advantages that:
the invention provides a tab forming method, which comprises the following steps:
firstly, a material belt is placed on a feeding device of a laser cutting machine, and under the driving action of the feeding device, the material belt can move along with the feeding device according to a preset material belt walking path so as to be convenient for transferring the material belt to a cutting station for cutting; the cutting device of the laser cutting machine cuts the material belt according to a preset laser walking path, and the laser walking path is an 8-shaped path; from this, the material area is along with material feeding unit removes according to material area walking route when cutting device cuts the material area according to preset laser walking route to, can cut out the cutting route of "nearly" font on the material area, and then cut out utmost point ear shape on the material area.
The laser walking path in the tab forming method provided by the invention adopts an 8-shaped path, and compared with the traditional walking path similar to a triangular (polygonal) path, the laser cutting area is reduced, and the width of the laser cutting path is reduced. Because the width of laser cutting route itself reduces, can adjust the central distance that is used for the adjacent two sets of trundles of walking to shorten, so, the distance between the contact position of material area and adjacent two sets of trundles reduces to be favorable to improving the stability of material area at the tape walking in-process, alleviate the shake problem in material area, and then improve the cutting accuracy and the cutting efficiency of utmost point ear. Meanwhile, compared with the traditional path similar to a triangular (polygonal) path, the 8-shaped path has the advantages that the laser cutting area is reduced (the width is reduced), the laser walking speed can be effectively reduced within the same time, and the cutting precision and the cutting stability can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view illustrating a conventional tab cutting path;
FIG. 2 is a conventional laser walking path resembling a triangular (polygonal) path;
fig. 3 is a schematic diagram of a tab cutting path provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a laser walking path of a first form of 8-shaped path according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a laser walking path of a second form of the 8-shaped path according to an embodiment of the present invention.
Icon:
1- "ji" shaped cutting path;
11-a first bottom cross section; 12-a first arc segment; 13-a first chamfered section; 14-a transversal edge section; 15-a second chamfered section; 16-a second arc segment; 17-a second bottom cross section;
2- "8" shaped path;
21-a first path segment; 22-a second road diameter section; 23-a third path segment; 24-a fourth road diameter section; 25-a fifth road diameter section; 26-a sixth road diameter section; 27-seventh road diameter section.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The specific structure is shown in fig. 1-5. In the present embodiment, the upper and lower sides in fig. 4 or 5 are the upper and lower sides, and the left and right sides are the left and right sides.
The method for forming the tab provided by the embodiment comprises the following steps:
firstly, a material belt is placed on a feeding device of a laser cutting machine, and under the driving action of the feeding device, the material belt can move along with the feeding device according to a preset material belt walking path so as to be convenient for transferring the material belt to a cutting station for cutting; the cutting device of the laser cutting machine cuts the material belt according to a preset laser walking path, and the laser walking path is an 8-shaped path 2; from this, the material area is along with material feeding unit removes according to material area walking route when cutting device cuts the material area according to preset laser walking route to, can cut out the cutting route of "nearly" font on the material area, and then cut out utmost point ear shape on the material area.
The laser walking path in the tab forming method provided by the embodiment adopts the 8-shaped path 2, and compared with the traditional walking path similar to a triangular (polygonal) path, the laser cutting area is reduced, and the width of the laser cutting path is reduced. Because the width of laser cutting route itself reduces, can adjust the central distance that is used for the adjacent two sets of trundles of walking to shorten, so, the distance between the contact position of material area and adjacent two sets of trundles reduces to be favorable to improving the stability of material area at the tape walking in-process, alleviate the shake problem in material area, and then improve the cutting accuracy and the cutting efficiency of utmost point ear. Meanwhile, compared with the traditional path similar to a triangular (polygonal) path, the 8-shaped path 2 has the advantages that the laser cutting area is reduced (the width is reduced), the laser walking speed can be effectively reduced within the same time, and the cutting precision and the cutting stability can be improved.
The embodiment includes two forms of the 8-shaped path 2, mainly referring to fig. 3-5, and the specific scheme is as follows:
the first form of the figure-8 path 2, mainly referring to fig. 3 and 4, comprises seven path stages, a first path segment 21, a second path segment 22, a third path segment 23, a fourth path segment 24, a fifth path segment 25, a sixth path segment 26 and a seventh path segment 27.
The first path segment 21 is an original point, that is, the cutting device stays at the original point (point a) and is stationary, and at this time, the feeding device carries the tape to move at a certain speed, so as to cut the first bottom transversal edge segment 11 (a-B segment) on the tape.
The second road diameter section 22 is formed by the cutting device moving from the original point to the first preset position in the left-down direction, that is, the cutting device moving from the point a to the point b, and at this time, the feeding device carries the material belt to move at a certain speed. Thereby, the traveling path of the material tape and the traveling path vector of the cutting device are superimposed (the traveling path direction of the material tape is not parallel to the traveling path direction of the cutting device) to form a path actually cut on the material tape, i.e., a first circular arc segment 12 (B-C segment) is cut on the material tape.
The third path segment 23 is formed by the cutting device moving from the first preset position to the second preset position in the right-down direction, that is, the cutting device moving from the point b to the point c, and at this time, the feeding device carries the material belt to move at a certain speed. Thereby, the running path of the material tape and the running path vector of the cutting device are superimposed (the running path direction of the material tape and the running path direction of the cutting device are not parallel) to form a path actually cut on the material tape, i.e. to cut the first bevel edge section 13 (C-D section) on the material tape.
The fourth road diameter section 24 is formed by moving the cutting device from the second preset position to the third preset position to the left, that is, moving the cutting device from the point c to the point d, and at this time, the feeding device carries the material belt to move at a certain speed. The running path of the material web is thus superimposed on the running path vector of the cutting device (the running path direction of the material web is parallel to the running path direction of the cutting device) to form the path actually cut on the material web, i.e. the transverse edge sections 14 (D-E sections) are cut out of the material web.
The fifth road diameter section 25 is formed by the cutting device walking from the third preset position to the fourth preset position in the right-up direction, that is, the cutting device walking from the point d to the point e, and at this time, the feeding device carries the material belt to move at a certain speed. Thereby, the running path of the material tape and the running path vector of the cutting device are superimposed (the running path direction of the material tape and the running path direction of the cutting device are not parallel) to form a path actually cut on the material tape, i.e. to cut the second bevel edge segment 15 (E-F segment) on the material tape.
The sixth road diameter section 26 is formed by the cutting device walking from the fourth preset position to the original point in the left-upper direction, that is, the cutting device walking from the point e to the point a, and at this time, the feeding device carries the material belt to move at a certain speed. Thereby, the running path of the tape and the running path vector of the cutting device are superimposed (the running path direction of the tape and the running path direction of the cutting device are not parallel) to form the path actually cut on the tape, i.e. the second circular arc segment 16 (F-G segment) is cut on the tape.
The seventh path segment 27 is the original point, i.e. the cutting device stays at the original point (point a) and the feeding device carries the web at a certain speed, so as to cut the second bottom transversal segment 17 (G-H segment) on the web.
In this embodiment, the feeding device carries the material belt to travel in a certain direction at a constant speed, which is generally 0-2000 mm/s, and the cutting device travels according to the path shown in fig. 4, so that the actual cutting shape is finally formed by vector superposition of the traveling path through the material belt and the traveling path of the cutting device, as shown in fig. 3, thereby achieving the cutting of the tab.
The present embodiment also includes a second form of a "8" -shaped path 2, and referring mainly to fig. 3 and 5, compared to the first form, the second form of the "8" -shaped path 2 also includes seven path stages, wherein the first path segment 21 stays at a point a1, the second path segment 22 travels from a point a1 to a point b1 in a downward right direction, the third path segment 23 travels from a point b1 to a point c1 in a downward left direction, the fourth path segment 24 travels from a point c1 to a point d1 in a right direction, the fifth path segment 25 travels from a point d1 to an upper left direction e1, the sixth path segment 26 travels from a point e1 to an upper right direction a1, and the seventh path segment 27 stays at a point a1 in the first form.
It should be noted that the "8" shaped path 2 of the first form is different from the "8" shaped path 2 of the second form in that the surrounding direction of the laser path is opposite. Further, when the tab is cut on the material belt according to the path of fig. 3, the above-mentioned "8" shaped path 2 of the first form requires a slower laser speed and a smaller energy than the "8" shaped path 2 of the second form, thereby being more suitable for the cutting path of fig. 3, while the "8" shaped path 2 of the second form has the characteristics of a faster laser speed and a larger energy.
Preferably, as shown in FIG. 4, the ab segment is bilaterally symmetric to the ea segment. This is because the first circular arc segment 12(BC segment) in the "zigzag cutting path 1 corresponding to the ab segment is bilaterally symmetrical to the second circular arc segment 16(FG segment) in the" zigzag cutting path 1 corresponding to the ea segment, and the moving speed of the tape is constant. Similarly, the reason why the segment a1b1 is left-right symmetrical to the segment e1a1 in fig. 5 is the same, and the description thereof is omitted here.
Further, in order to reduce the laser cutting area and the width of the cutting path, in this embodiment, the bc section and the de section intersect with each other, specifically referring to fig. 4, a straight line is made downwards in the plane through the point b, the ab section and the bc section are located on the same side of the straight line, similarly, a straight line is made downwards in the plane through the point d, and the ea section and the de section are located on the same side of the straight line. When the "8" shaped path 2 of the second mode is adopted, the principle and effect are the same, and the detailed description is omitted here.
Further, referring mainly to fig. 3 to 5, since the first chamfered section 13 (C-D section) and the second chamfered section 15 (E-F section) in the "few" -shaped cutting path 1 are bilaterally symmetrical, the third path section 23(bc section or b1C1 section) in the "8" -shaped cutting path 2 corresponding to the first chamfered section 13 and the fifth path section 25(de section or D1E1 section) corresponding to the second chamfered section 15 are crossed with each other (forming the crossing point F/F1) and are bilaterally symmetrical, so as to reduce the width of the cutting path itself.
It should be noted that, in this embodiment, the "8" shaped path 2 is preferably in a symmetrical form, and of course, may also be in an asymmetrical "8" shaped path 2 form, specifically as follows:
referring mainly to fig. 4 and 5, when the be (b1e1) segment and the cd (c1d1) segment are parallel to each other, the "8" -shaped path 2 may be in a symmetrical form (also referred to as a "positive" 8 '-shaped form) and may also be in an asymmetrical form (also referred to as a "diagonal" 8' -shaped form).
Further, on the premise that the be (b1e1) segment is parallel to the cd (c1d1) segment, when the ab (a1b1) segment and the ae (a1e1) segment are bilaterally symmetric about the center line of the cd (c1d1) segment and the original point a (a1) is on the center line, the "8" -shaped path 2 is a symmetric form (also referred to as a "right '8' -shaped form").
Furthermore, when the intersection points f (f1) of the bc (b1c1) segment and the de (d1e1) segment are both the middle points of the bc (b1c1) segment and the de (d1e1) segment, that is, the triangles bfe (b1f1e1) and cfd (c1f1d1) are congruent triangles, so that the be (b1e1) segment is equal to the cd (c1d1) segment, thereby ensuring that the width of the laser cutting path is minimum.
In this embodiment, the laser passes through the 8-shaped path when cutting the tab, thereby completing the tab cutting. During cutting, the material belt (pole piece) is tensioned on the clamping device, specifically, clamped among a plurality of groups of small rollers arranged at intervals, so that the process of cutting while walking is realized. The specific process is as follows:
1. designing the shape of the tab according to the needs, then generating a cutting track (which may include parameters such as a cutting path, a cutting speed, etc.), and transmitting the generated cutting track to a laser control card (the process may refer to the prior art and is not elaborated);
2. matching with the current transmission speed of the material belt, cutting tabs on the material belt by laser along a laser walking path;
3. and (5) continuously repeating the step (2) to realize the cutting of the whole material belt.
In this embodiment, the laser traveling speed at each stage in the "ziji" shaped cutting path 1 is derived, mainly referring to fig. 3 to 5, as follows:
according to the requirement of artificial design, the laser walking path is divided by the laser walking speed and is equal to the material belt moving path divided by the material belt moving speed. That is to say that the first and second electrodes,
SJ/VJ＝SL/VX。
from this, the following can be derived for each stage:
in the first case: sCircular arc X＞SlimitIn this case, the projection length value in the X direction of the arc is greater than the value in the X direction of the limited range of the cutting area, and the 8-shaped path 2 can be realized by directly matching the speed of the arc.
First bottom transversal section 11 and second bottom transversal section 17:
VJ＝VXthe reverse is true when the laser spot is stationary at the origin.
First and second arc segments 12, 16:
VJ＝Scircular arc＊VX/(SCircular arc X－Slimit)。
First and second chamfered sections 13 and 15:
VJ＝SJ＊VX/(Slimit+SX)。
the horizontal side section 14:
VJ＝Stransverse edge＊VX/(STransverse edge－Slimit＊2)。
In the second case: sCircular arc X＜SlimitIn this case, the projection length value of the arc in the X direction is smaller than the value in the X direction of the cutting area limit range, and the "8" shaped path 2 needs to be realized by speed matching of (arc + straight sides before and after the arc).
First bottom transversal segment 11 merges with first circular arc segment 12 and second bottom transversal segment 17 merges with second circular arc segment 16:
VJ＝(Scircular arc X+S)＊VX/(SCircular arc X+S－Slimit)。
First and second chamfered sections 13 and 15:
VJ＝SJ＊VX/(Slimit+SX)。
the horizontal side section 14:
VJ＝Stransverse edge＊VX/(STransverse edge－Slimit＊2)。
Wherein the content of the first and second substances,
SJ: a laser walking path;
SL: a material belt moving path;
VJ: laser walking speed;
VX: the moving speed of the material belt;
SX: laserThe X-direction projection length value of the optical walking path;
Scircular arc: a circular arc path;
Scircular arc X: the projection length value of the arc in the X direction (left-right direction in fig. 3);
Slimit: the X-direction value of the cutting area limit range ("width of the figure-8 path 2");
Stransverse edge: a transverse edge segment path;
s: length of the transverse edge of the bottom.
The derivation of the laser traveling speed of the bevel edge section in the conventional cutting path mainly refers to fig. 1 and 2, which are as follows:
VJ＝SJ＊VX/(Slimit/2－SX－Scircular arc X)；
Wherein the content of the first and second substances,
SJ: a laser walking path;
VJ: laser walking speed;
VX: the moving speed of the material belt;
Slimit: the X-direction value of the cutting area limiting range;
SX: the X-direction projection length value of the laser walking path;
Scircular arc X: the projection length of the arc in the X direction (left-right direction in fig. 3).
Thus, the laser traveling speed on the oblique side in the conventional manner is compared with the laser traveling speed on the oblique side in the present embodiment as follows:
the method comprises the following steps: vJ＝SJ＊VX/(Slimit/2－SX－SCircular arc X)；
In this embodiment: vJ＝SJ＊VX/(Slimit+SX)；
By comparison, it can be seen that in SlimitIn the same case, the laser traveling speed in the present embodiment is greatly reduced compared to the conventional laser traveling speed, even if S in the present embodimentlimitIs a tradition SlimitHalf of the timeThe laser walking speed is obviously reduced, namely, the stability is improved, the laser walking speed (cutting speed) is greatly reduced, the unit length scattering energy on the material belt is improved, and the stability is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A tab forming method is characterized by comprising the following steps:
placing a material belt on a feeding device of a laser cutting machine, wherein the material belt can move along with the feeding device according to a preset material belt walking path;
a cutting device of the laser cutting machine cuts the material belt according to a preset laser walking path, wherein the laser walking path is an 8-shaped path;
the cutting device can cut a zigzag cutting path on the material belt moving according to the material belt traveling path according to the laser traveling path so as to cut tabs on the material belt;
the "8" shaped path includes the following seven path stages:
a first path segment, the cutting device staying at an original point;
the cutting device walks to a first preset position from an original point in the left-lower direction;
a third path segment, wherein the cutting device walks from the first preset position to a second preset position in a right-down direction;
a fourth road diameter section, wherein the cutting device walks leftwards from the second preset position to a third preset position;
the cutting device walks to a fourth preset position from the third preset position to the right upper direction;
the cutting device travels to the original point from the fourth preset position in the left-upper direction;
a seventh road diameter section, the cutting device staying still at the original point;
the first road path segment, the second road path segment, the third road path segment, the fourth road path segment, the fifth road path segment, the sixth road path segment and the seventh road path segment are sequentially connected to form the 8-shaped path;
or, the 8-shaped path comprises the following seven path stages:
a first path segment, the cutting device staying at an original point;
the cutting device walks to a first preset position from an original point to the right lower direction;
a third path segment, wherein the cutting device walks from the first preset position to a second preset position in a left-lower direction;
a fourth road diameter section, wherein the cutting device walks rightwards from the second preset position to a third preset position;
the cutting device walks to a fourth preset position from the third preset position in the left-upper direction;
the cutting device walks to the original point from the fourth preset position to the right upper direction;
a seventh road diameter section, the cutting device staying still at the original point;
the first road section, the second road section, the third road section, the fourth road section, the fifth road section, the sixth road section and the seventh road section are sequentially connected to form the 8-shaped path.
2. The method as claimed in claim 1, wherein a line connecting the first preset position and the fourth preset position is parallel to a line connecting the second preset position and the third preset position.
3. The method as claimed in claim 2, wherein a line connecting the initial point and the first predetermined position and a line connecting the initial point and the fourth predetermined position are symmetrical with respect to a center line connecting the second predetermined position and the third predetermined position.
4. The method as claimed in claim 3, wherein a cross point between a line connecting the first preset position and the second preset position and a line connecting the fourth preset position and the third preset position is a midpoint between the lines connecting the first preset position and the second preset position, and the cross point is a midpoint between the lines connecting the fourth preset position and the third preset position.
5. The tab forming method as claimed in claim 1, wherein a feeding speed of the feeding device is constant.
6. The tab forming method as claimed in claim 1, wherein the zigzag cutting path comprises the following stages in sequence:
the extension direction of the first bottom transverse edge section is parallel to the moving direction of the material belt;
a first end of the first arc segment is connected and tangent with the first bottom transversal edge segment;
the first bevel edge section is connected and tangent with the second end of the first circular arc section, and the first bevel edge section and the first circular arc section are both positioned on the same side of the first bottom transverse edge section;
the transverse edge section is connected with the first oblique edge section and is parallel to the first bottom transverse edge section;
the second oblique edge section is connected with the transverse edge section, and the second oblique edge section and the first oblique edge section are symmetrical about the central line of the transverse edge section;
a first end of the second arc section is connected and tangent with the second oblique edge section, and the second arc section and the first arc section are symmetrical about the center line of the transverse edge section;
and the second bottom transverse edge section is connected and tangent with the second end of the second circular arc section.
7. The tab forming method as claimed in claim 6, wherein each path stage in the 8-shaped path corresponds to each stage in the zigzag cutting path.
8. The tab forming method as claimed in claim 1, wherein the zigzag cutting path is a vector sum of the material belt traveling path and the laser traveling path.
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| CN117102690B (en) * | 2023-07-31 | 2024-06-21 | 广东利元亨智能装备股份有限公司 | Tab forming method, die cutting machine, cutting and stacking integrated machine and electronic equipment |
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