CN113941658A - Punch manufacturing method - Google Patents
Punch manufacturing method Download PDFInfo
- Publication number
- CN113941658A CN113941658A CN202010678016.3A CN202010678016A CN113941658A CN 113941658 A CN113941658 A CN 113941658A CN 202010678016 A CN202010678016 A CN 202010678016A CN 113941658 A CN113941658 A CN 113941658A
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- grinding wheel
- cylindrical
- cylindrical grinding
- machining
- punch
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000003754 machining Methods 0.000 claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910001651 emery Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
- B21D37/205—Making cutting tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
本发明涉及一种冲头制造方法，包含以下步骤：对圆柱对象的外围轮廓进行切削以形成外径不同的连接段与加工段；在加工段的周缘形成有多个间隔距离相同的标记点，而多个标记点配合圆柱砂轮棒的半径而在工段的外围设定多个加工点；圆柱砂轮棒的正中心对准于其中一个加工点，使得圆柱砂轮棒的外围轮廓切齐于其中两个标记点，随后，圆柱砂轮棒朝向连接段移动，使加工段被圆柱砂轮棒研磨而形成凹槽；最后，圆柱砂轮棒的正中心重复对准另一个加工点，并进行移动，使加工段再度被圆柱砂轮棒研磨而增加凹槽的数量，使凹槽与凹槽之间各形成刀刃，借此，本发明冲头制作方法能制作出具有多个刀刃的冲头。
The invention relates to a punch manufacturing method, which comprises the following steps: cutting the outer contour of a cylindrical object to form connecting sections and machining sections with different outer diameters; forming a plurality of marking points with the same interval on the periphery of the machining section, The multiple marking points are matched with the radius of the cylindrical grinding wheel bar to set a plurality of machining points on the periphery of the section; the center of the cylindrical grinding wheel bar is aligned with one of the machining points, so that the outer contour of the cylindrical grinding wheel bar is aligned with two of the machining points. Mark the point, then, the cylindrical grinding wheel bar moves towards the connecting section, so that the machining section is ground by the cylindrical grinding wheel bar to form a groove; finally, the center of the cylindrical grinding wheel bar is repeatedly aligned with another machining point, and moves to make the machining section again Grinding by the cylindrical grinding wheel bar increases the number of grooves, so that a blade is formed between the grooves, whereby the punch manufacturing method of the present invention can produce a punch with multiple blades.
Description
Technical Field
The invention relates to a method for manufacturing a punch, in particular to a method for manufacturing a punch which can enable the punch to have a plurality of cutting edges.
Background
Stamping forming is a widely used metal processing method, and mainly processes metal parts by cutting, bending or compressing through a punch and a die, so that the shape of the metal parts can be changed to present preset shapes and sizes.
However, in the conventional punch, a single blade is formed on an end surface of the punch, and when the punch performs a notching operation on an inner wall surface of the hollow cylinder to form a plurality of notches, because the existing punch has only a single blade, after the inner wall surface of the hollow cylinder is notched by the existing punch to form the notches, the existing punch must repeat the notching operation on the inner wall surface of the hollow cylinder to form a plurality of notches on the inner wall surface of the hollow cylinder, and thus, a processing time for performing the notching operation is prolonged, and thus, production efficiency cannot be improved.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method for manufacturing a punch capable of manufacturing a punch having a plurality of cutting edges, which can form a plurality of cutting grooves on an inner wall surface of a hollow cylinder at a time when the punch having the plurality of cutting edges performs a grooving operation on the inner wall surface of the hollow cylinder, and which can shorten a grooving operation time and improve productivity.
In order to achieve the above object, a method for manufacturing a punch according to the present invention includes the steps of: a cutting step: providing a cylindrical object, and cutting the peripheral outline of the cylindrical object to form a connecting section and a processing section with an outer diameter smaller than that of the connecting section on the cylindrical object.
A machining point setting step: a plurality of mark points with the same interval distance are formed on the peripheral outline of the processing section, the mark points are matched with the radius of a cylindrical grinding wheel rod, a plurality of processing points are set on the periphery of the processing section, and when the center of the cylindrical grinding wheel rod is aligned to each processing point, the peripheral outline of the cylindrical grinding wheel rod is aligned to two mark points.
A grinding step: the center of the cylindrical grinding wheel rod is aligned with one of the processing points and moves towards the connecting section along the central axis of the cylindrical object, so that the cylindrical grinding wheel rod grinds the processing section, and the processing section is provided with a groove in a concave mode.
A blade forming step: and moving one of the cylindrical object and the cylindrical grinding wheel rod to change the relative position between the groove and the cylindrical grinding wheel rod, so that the positive center of the cylindrical grinding wheel rod is aligned with the other machining point, and the cylindrical grinding wheel rod moves along the central axis of the cylindrical object, so that the cylindrical grinding wheel rod grinds the machining section again to increase the number of the grooves, and a blade tangent to the peripheral profile of the machining section is formed between each groove and the other groove.
A punch forming step: repeating the blade forming step to enable a plurality of grooves to be annularly arranged at the periphery of the processing section, and further increasing the number of blades to enable the cylindrical object to be formed into a punch.
Wherein the punch manufacturing method further comprises: a step of lead angle grinding: changing the relative position relationship between the cylindrical object and the cylindrical grinding wheel rod to enable the processing section to be in an inclined state to be inclined to the cylindrical grinding wheel rod, and enabling the cylindrical grinding wheel rod to move to be ground on the processing section, so that an inclined groove inclined to the groove is formed at one end of the processing section; a tilt groove increment step: the processing section is rotated by a set angle while maintaining the inclined state, and then the cylindrical grinding wheel rod is moved to grind the processing section, thereby increasing the number of the inclined grooves so that the inclined grooves are annularly arranged at the periphery of the processing section.
In this embodiment, the linear spacing distance between each of the mark points and another of the mark points is set to a mark length, and a half length of the mark length is smaller than the radius of the cylindrical grinding wheel rod.
In addition, an inclined blade inclined to the blade edge is formed between each inclined groove and the other inclined groove, wherein each groove is communicated with one inclined groove in a one-to-one mode, and the end of each blade is formed with one inclined blade edge.
The invention is characterized in that the cylindrical object can form the punch with a plurality of blades after sequentially performing the cutting step, the machining point setting step, the grinding step, the blade forming step and the punch forming step, so that when the punch with the plurality of blades performs grooving operation on the inner wall surface of the hollow cylinder, the inner wall surface of the hollow cylinder can form a plurality of grooves at one time, and the punch with the plurality of blades can shorten the grooving operation time so as to improve the production efficiency.
Drawings
FIG. 1 is a block flow diagram of a punch manufacturing method of the present invention;
FIG. 2 is a schematic view of the cutting step of FIG. 1;
FIGS. 3A and 3B illustrate the process point setting step of FIG. 1;
FIG. 4A is a schematic view of the polishing step of FIG. 1;
FIG. 4B is a schematic view of a machining section formed with grooves;
FIG. 5A is a schematic view of the blade forming step of FIG. 1;
FIG. 5B is a schematic view of a segment formed with two grooves;
FIG. 6A is a schematic view of the punch forming step of FIG. 1;
FIG. 6B is a schematic view of a plurality of grooves surrounding a processing station;
FIG. 7A is a schematic view of the bevel polishing step of FIG. 1;
FIG. 7B is a schematic view of the machining section being formed with angled grooves;
FIG. 8A is a schematic illustration of the incremental step of tilting the grooves of FIG. 1;
FIG. 8B is a schematic view of the machining section being formed with two inclined grooves;
FIG. 9A is a schematic illustration of the repeated ramping groove increment step of FIG. 1;
FIG. 9B is a schematic view of a plurality of slanted grooves surrounding a processing station;
fig. 10A is a schematic view showing a notching operation of a punch for a processing object; and
FIG. 10B is a schematic view of the machined object formed with a plurality of cut grooves.
Description of reference numerals: 1-a punch manufacturing method; 10-a cutting step; 11-a machining point setting step; 12-grinding step; 13-blade edge forming step; 14-punch forming step; 15-lead angle grinding; 16-a tilted groove increment step; 20-a cylindrical article; 21-a connecting segment; 22-a processing section; 23-a groove; 24-a blade edge; 25-a punch; 26-inclined grooves; 27-a beveled edge; 30-a processing machine platform; 31-a clamp; 40-a cutter; 50-cylindrical grinding wheel rod; 60-die sleeve; 70-a punch forming machine; 80-processing the object; 81-columnar portion; 82-grooving; 90-notching a lower die; 91-punching the upper die of the groove; 911-notching space; a 1-horizontal state; a2 — inclined state; l-mark length; r-arc; p1-marker; p2-processing point.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings, the advantages and features of which will become apparent as the description proceeds.
Referring to fig. 1 and 2, a cutting step 10 is performed in a punch manufacturing method 1 according to the present invention, first, a cylindrical object 20, a processing machine 30 and a cutter 40 are provided, then, a clamp 31 disposed on the processing machine 30 is clamped to the cylindrical object 20, when the clamp 31 is clamped to the cylindrical object 20, the processing machine 30 drives the cylindrical object 20 to rotate, and then, the cutter 40 is close to the rotating cylindrical object 20 to cut the outer peripheral profile of the cylindrical object 20, so that the overall appearance of the cylindrical object 20 presents a step-like state with a gradually reduced outer diameter, and further, a local section of the cylindrical object 20 is set as a connecting section 21 clamped by the clamp 31, and the remaining section of the cylindrical object 20 is a processing section 22 with an outer diameter smaller than the connecting section 21, so that the cutting step 10 is completed.
Referring to fig. 1 and 3A, after the cutting step 10 is completed, a machining point setting step 11 is performed, first, a cylindrical grinding wheel rod 50 is provided, and then eight marking points P1, which are circular as shown in the figure, are equally divided according to the contour perimeter of the machining section 22, so that one marking point P1 is disposed at every 45 degrees of the periphery of the machining section 22, resulting in that the distance between each marking point P1 and the adjacent marking point P1 is the same, in this embodiment, the linear distance between each marking point P1 and the adjacent other marking point P1 is set as a marking length L, and the half length of the marking length L must be smaller than the radius of the cylindrical grinding wheel rod 50.
However, the eight marks P1 are provided on the circumference of the contour of the processing segment 22 for convenience of illustration only, that is, one mark P1 is provided on the outer periphery of the processing segment 22 every 30 degrees, every 40 degrees or every 60 degrees, so that 12, 9 or 6 marks P1 are formed on the circumference of the processing segment 22.
Referring to fig. 3B, each mark point P1 is used as a circle center, and a radius of a half diameter of the cylindrical grinding wheel bar 50 is used as a radius to form a plurality of arcs R with the same curvature, and each arc R intersects with another adjacent arc R, so that a boundary between the arcs R and the arcs R forms a processing point P2 which is triangular as shown in the figure, and the periphery of the processing segment 22 forms eight processing points P2 which are annularly arranged, whereby when the center of the cylindrical grinding wheel bar 50 is aligned with each processing point P2, the periphery of the cylindrical grinding wheel bar 50 is aligned with two adjacent mark points P1.
Referring to fig. 1, 4A and 4B, after the processing point P2 setting step 11 is completed, a grinding step 12 is performed, the connecting section 21 of the cylindrical object 20 is mounted on a die case 60 such that the processing section 22 of the cylindrical object 20 protrudes outside the die case 60, and the die case 60 is clamped by a punch forming machine 70 such that the processing section 22 of the cylindrical object 20 assumes a horizontal state a1 to be parallel to the cylindrical grinding wheel bar 50, then the cylindrical grinding wheel bar 50 is moved such that the center of the cylindrical grinding wheel bar 50 is aligned with one of the processing points P2, and the cylindrical grinding wheel bar 50 is rotated, and the cylindrical grinding wheel bar 50 being rotated is moved along the central axis of the cylindrical object 20 such that the cylindrical grinding wheel bar 50 is close to the connecting portion of the cylindrical object 20, and the processing section 22 of the cylindrical object 20 is ground by the cylindrical grinding wheel bar 50 to be recessed to form a groove 23, in this embodiment, the cutting amount of the cylindrical grinding wheel bar 50 to the machining segment 22 can be calculated by combining the trigonometric function and the pythagorean theorem with the four of the standard point P1, the machining point P2, the radius of the machining segment 22 and the radius of the cylindrical grinding wheel bar 50, and the depth of the groove 23 can be known.
Referring to fig. 1, 5A and 5B, after the first groove 23 is formed in the processing section 22 of the cylindrical object 20, a blade forming step 13 is performed, first, the punch forming machine 70 drives the cylindrical object 20 to rotate clockwise by 45 degrees to change the relative position between the groove 23 of the cylindrical object 20 and the cylindrical emery wheel rod 50, so that the center of the cylindrical emery wheel rod 50 is aligned with another processing point P2, next, the cylindrical emery wheel rod 50 rotates, and the cylindrical emery wheel rod 50 rotating moves along the central axis of the cylindrical object 20, so that the cylindrical emery wheel rod 50 grinds the processing section 22, and the processing section 22 is formed with two grooves 23, and when the processing section 22 has two grooves 23, a blade 24 tangential to the peripheral contour of the processing section 22 is formed at the intersection between the groove 23 and the other groove 23, thereby, the blade edge forming step 13 is completed.
Referring to fig. 1 and 6, when the blade forming step 13 is completed, a punch forming step 14 is started, and when the punch forming step 14 is performed, the blade forming step 13 is repeated for a plurality of times, so that each time the punch forming machine 70 drives the cylindrical object 20 to rotate clockwise by 45 degrees, the cylindrical grinding wheel rod 50 grinds the processing section 22 of the cylindrical object 20 to increase the number of the grooves 23 to eight, so that the eight grooves 23 are distributed around the processing section 22, and the eight grooves 23 are arranged annularly on the periphery of the processing section 22, so that the same number of the blades 24 is increased to eight, thereby converting the cylindrical object 20 into a punch 25.
Referring to fig. 1 and 7, when the peripheral of the processing segment 22 of the cylindrical object 20 is fully covered with the grooves 23, a bevel grinding step 15 is performed, first, the punch forming machine 70 changes the processing segment 22 of the cylindrical object 20 from a horizontal state a1 to an inclined state a2, so that the processing segment 22 is inclined with respect to the cylindrical emery wheel rod 50, when the processing segment 22 is in the inclined state a2, the cylindrical emery wheel rod 50 rotates, and then, the rotating cylindrical emery wheel rod 50 moves close to the processing segment 22, so that the processing segment 22 is ground by the cylindrical emery wheel rod 50 to form an inclined groove 26 inclined with respect to the grooves 23 at the processing end far from the connecting segment 21, and as shown in the figure, the inclined groove 26 is communicated with one of the grooves 23.
Referring to fig. 1 and 8, when the inclined grooves 26 are formed in the processing segment 22 of the cylindrical article 20, the processing segment 22 is kept in the inclined state a2, and then the punch forming machine 70 rotates the cylindrical article 20 clockwise by a set angle of 45 degrees to make the inclined grooves 26 away from the motion path of the cylindrical grinding wheel bar 50, and then the rotating cylindrical grinding wheel bar 50 moves to grind the processing segment 22 again, so that the processing segment 22 is formed with two inclined grooves 26 at a section away from the connecting segment 21, and when the processing segment 22 is formed with two inclined grooves 26, one of the inclined grooves 26 is communicated with one of the grooves 23 and the other inclined groove 26 is communicated with the other groove 23, so that the two inclined grooves 26 are respectively communicated with one of the grooves 23 one by one, and an inclined blade 27 formed at the end of the blade 24 is formed at the junction between the inclined grooves 26 and the inclined grooves 26, thereby, a tilt groove increment step 16 is completed.
Referring to fig. 1 and 9, when the inclined groove increment step 16 is completed, the inclined groove increment step 16 is repeated for a plurality of times, so that each time the punch forming machine 70 drives the cylindrical object 20 to rotate clockwise by 45 degrees, the cylindrical grinding wheel rod 50 grinds the processing section 22 of the cylindrical object 20 to increase the number of the inclined grooves 26 to eight, so that eight inclined grooves 26 are distributed around the processing section 22, and correspondingly, eight inclined grooves 26 are annularly arranged on the periphery of the processing section 22, so that the same number of the inclined blades 27 is increased to eight.
Referring to fig. 10A and 10B, a processing object 80, a notching lower die 90 and a notching upper die 91 are provided, as shown in the drawing, the processing object 80 has a columnar portion 81 which appears as a hollow cylinder, and the punch 25 is mounted to the notching lower die 90, wherein, the lower surface of the upper notching die 91 is recessed upward to form a notching space 911 having a contour approximately the same as the outer edge of the columnar portion 81, next, the columnar portion 81 of the object 80 is aligned with the notching convex column 601 of the lower notching die 81, and thereafter, the notching upper die 91 is moved toward the notching lower die 81 so that the processing object 80 can be moved toward the notching lower die 81 by the moving notching upper die 91, further, the column 81 and the punching convex column 601 are both located in the punching space 911, at this time, each blade 24 cuts the inner wall surface of the columnar portion 81 so that a plurality of slits 82 are formed inside the columnar portion 81 to reduce the thickness of a part of the columnar portion 81.
The foregoing description and examples are exemplary only, and are not intended to limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678016.3A CN113941658A (en) | 2020-07-15 | 2020-07-15 | Punch manufacturing method |
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|---|---|---|---|
| CN202010678016.3A CN113941658A (en) | 2020-07-15 | 2020-07-15 | Punch manufacturing method |
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| CN113941658A true CN113941658A (en) | 2022-01-18 |
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