CN112845778A - Convex hull shaping device and machining method thereof - Google Patents
Convex hull shaping device and machining method thereof Download PDFInfo
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- CN112845778A CN112845778A CN202011596292.1A CN202011596292A CN112845778A CN 112845778 A CN112845778 A CN 112845778A CN 202011596292 A CN202011596292 A CN 202011596292A CN 112845778 A CN112845778 A CN 112845778A
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- 238000007493 shaping process Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title description 7
- 238000003754 machining Methods 0.000 title description 2
- 238000004080 punching Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 10
- 238000003672 processing method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- 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
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a convex hull shaping device which comprises an upper template, a lower template, a first shaping insert and a second shaping insert, wherein the upper template is provided with a first cavity; the first shaping insert is connected with the upper template and comprises a first convex hull punch and a convex hull cavity from top to bottom, and the convex hull cavity is in a circular truncated cone shape; the second shaping insert is connected with the lower template, the second shaping insert corresponds to the first shaping insert in position, the second shaping insert comprises a second convex hull punch head, and the second convex hull punch head is in a round table shape. Above-mentioned convex closure shaping device can carry out effective plastic to the convex closure to prevent the convex closure fracture, reduce the disability rate.
Description
Technical Field
The invention relates to the technical field of stamping devices, in particular to a convex hull shaping device and a processing method thereof.
Background
There are many kinds of convex hulls with different sizes and heights in the back plate of the television, the working procedures are different in the mould for designing the convex hull forming, especially the shape is responsible for that the convex hull is relatively high (generally 9.0-13.5mm, or more), if one-time stretching is difficult to achieve the requirement, the first-step stretching is needed, the second-step shaping is needed, generally, the shape and height of the first-step stretching convex hull are not accurate, the shape is higher than the needed convex hull, and the convex hull is shaped in the second step or even the third step.
Disclosure of Invention
The invention aims to provide a convex hull shaping device which can effectively shape a convex hull, prevent the convex hull from being broken and reduce the rejection rate.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a convex hull shaping device comprises an upper template, a lower template, a first shaping insert and a second shaping insert; the first shaping insert is connected with the upper template and comprises a first convex hull punch and a convex hull cavity from top to bottom, and the convex hull cavity is in a circular truncated cone shape; the second shaping insert is connected with the lower template, the second shaping insert corresponds to the first shaping insert in position, the second shaping insert comprises a second convex hull punch head, and the second convex hull punch head is in a round table shape.
Furthermore, the side surface of the convex hull cavity and the convex hull are arranged at intervals, and the interval distance is 0.1-0.3 mm.
Further, the first shaping insert and the upper template are integrally formed.
Further, the first shaping insert is detachably connected with the upper template.
Furthermore, a first accommodating groove for accommodating the first shaping insert is formed in the upper template.
Furthermore, the side face of the second convex hull punch head and the convex hull are arranged at intervals, and the interval distance is 0.1-0.3 mm.
Further, the second shaping insert and the lower template are integrally formed.
Further, the second shaping insert is detachably connected with the lower template.
Furthermore, a second accommodating groove for accommodating the second shaping insert is formed in the lower template, and the second convex hull punch is arranged outside the second accommodating groove.
On the other hand, the invention also provides a processing method of the convex hull shaping device, which comprises the following steps:
s1, aligning the back plate, placing the convex hull stretched out from the back plate of the television at the second shaping insert, and aligning the axis of the convex hull with the axis of the punch head of the second convex hull;
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity of the first shaping insert, applying 60T-500T of pressure through the punch, opening the die of the upper template and the lower template after continuing for 0.5-1S, and circulating the operations for 2-3 times, wherein the interval time of each time is 1-2S;
s3: and (4) checking the height, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of the second convex hull punching head, and if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping.
The invention has the beneficial effects that:
1. through setting convex closure chamber and second convex closure drift to the round platform shape, be the round surface with the contact surface of convex closure like this, under the condition of same girth, the circular area of plane figure is the biggest, consequently, adopt circular contact surface, not only the specification of convex closure chamber and second convex closure drift has obtained the reduction of certain degree, use cost has been saved, and make the convex closure atress more even difficult fracture with the area of contact grow of convex closure, the convex closure of tensile play is hemispherical, make the convex closure be the round platform shape through the plastic, adopt circular contact surface on the same principle, the convex closure is bigger with the accessory contact area of installing above that, accessories assembles better.
2. The side of convex closure chamber sets up and the side of second convex closure drift and convex closure interval sets up and has prevented effectively that to close the mould at convex closure shaping device and carry out altitude mixture control to the convex closure, and the convex closure causes the cracked risk of convex closure because of the atress to both sides transmission pressure, through setting up the gap interval of moderate degree, has given the convex closure to the certain deformation space of both sides release pressure, can guarantee under the highly accurate condition of convex closure like this, and the product disability rate obtains effectively reducing.
3. In the processing method of the convex hull shaping device, the convex hull is shaped by adopting an equal-interval repeated circulation die opening and closing convex stamping mode in the step of closing the die and shaping the convex stamping, after the process of stretching the convex hull, the convex hull part is fragile compared with other areas, compared with the existing one-time pressing shaping operation, the equal-interval repeated circulation pressing mode can reduce the time for pressing each time when the die is closed, the risk that the convex hull is broken due to overlong pressing time is effectively avoided, and the equal-interval repeated circulation pressing can effectively reduce the transverse deformation degree of the convex hull in the stress process.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an open state according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a closed-mode state according to an embodiment of the present invention.
In the drawings, an upper plate 100, a first receiving groove 110; a lower template 200, a second receiving groove 210; a first plastic insert 300, a first convex hull punch 310, a convex hull cavity 320; a second plastic insert 400, a second convex hull punch 410; a convex hull 500.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, a convex hull shaping device and a processing method thereof according to the present invention are described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "central," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for ease of describing the invention and to simplify the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
In an embodiment of the present invention, the convex hull shaping device mainly includes an upper mold plate 100, a lower mold plate 200, a first shaping insert 300, and a second shaping insert 400.
The first shaping insert 300 is connected with the upper template 100, the first shaping insert 200 comprises a first convex hull punch 310 and a convex hull cavity 320 from top to bottom, the convex hull cavity 320 is in a circular truncated cone shape, the first convex hull punch 310 is used for supporting the convex hull cavity 320, when the mold is closed and shaped, the first convex hull punch 310 provides a reaction force to enable a convex hull to perform height shaping in the convex hull cavity 320, the first shaping insert 300 and the upper template 100 can be fixedly connected (such as welding and integrally formed), and can also be detachably connected (such as screwing and clamping), and preferably screwed, the cost is low, and later maintenance, disassembly, assembly and replacement are convenient.
The second shaping insert 400 is connected with the lower template 200, the second shaping insert 400 corresponds to the first shaping insert 300 in position, the second shaping insert 400 comprises a second convex hull punch 410, the second convex hull punch 410 is in a circular truncated cone shape, and the second shaping insert 400 and the lower template 200 can be fixedly connected (such as welded, integrally formed and the like) or detachably connected (such as screwed and clamped) preferably, so that the lower template is low in cost and convenient to maintain, disassemble, assemble and replace in the later period.
Set to the round platform shape through with convex hull chamber 320 and second convex hull drift 410, like this with the contact surface of convex hull be the round surface, under the condition of same girth, the circular area of plane figure is the biggest, consequently, adopt circular contact surface, not only the specification of convex hull chamber and second convex hull drift has obtained the reduction of certain degree, use cost has been saved, and make the convex hull atress more even difficult fracture with the area of contact grow of convex hull, the convex hull of tensile play is hemispherical, make the convex hull be the round platform shape through the plastic, adopt circular contact surface on the same principle, the convex hull is bigger with the contact area of the accessories of installing above that, accessories are better to assemble.
It should be noted that, in order to facilitate the alignment of the first and second insert shaping devices 300 and 400, a vertical infrared emitter and an infrared sensor may be respectively disposed on the first and second insert shaping devices 300 and 400, and if the first and second insert shaping devices 300 and 400 are not aligned, the infrared sensor may not receive infrared rays and may be prompted by a warning light or a warning bell installed on the convex hull shaping device.
In order to effectively prevent the risk that the convex hull is broken due to the fact that pressure is transmitted to two sides by the convex hull when the convex hull shaping device closes the die to perform height adjustment on the convex hull, the side face of the convex hull cavity 320 and the convex hull 500 can be arranged at intervals, and a certain deformation space for releasing pressure to two sides by the convex hull is provided by arranging a proper gap interval, so that the rejection rate of products can be effectively reduced under the condition that the height of the convex hull is accurate, and similarly, the side face of the second convex hull punch 410 and the convex hull 500 can be arranged at intervals, the interval distance cannot be too large, the transverse deformation of the convex hull is large due to too large size, the performance of the convex hull can be influenced, the pressure released to two sides by too small convex hulls is insufficient, the risk of breakage can be caused, and the interval distance is optimal at 0.1-0.3mm and is preferably 0.2 mm.
In order to make the overall structure of the convex hull shaping device more compact, the upper die plate 100 may be provided with a first receiving groove 110 for receiving the first shaping insert 300, so that the first shaping insert 300 is integrally disposed in the first receiving groove 110, the vertical height of the upper die plate 100 after the first shaping insert 300 is assembled is not increased, and the overall structure is more stable; similarly, the lower mold plate 200 is provided with a second receiving groove 210 for receiving the second plastic insert 400, and the second convex hull punch 410 is disposed outside the second receiving groove 210.
In addition, the invention also provides a processing method of the convex hull shaping device, and provides the following embodiments:
example one
The processing method of the convex hull shaping device for the small-size television backboard comprises the following steps:
s1, aligning a back plate, and placing the convex hull stretched on the back plate of the television at the second reshaping insert 400, wherein the axis of the convex hull is aligned with the axis of the second convex hull punch 410;
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity 320 of the first shaping insert 200, applying 60T pressure through the punch, opening the die for 1S, and then cycling the operation for 3 times, wherein the interval time of each time is 1S;
s3: and (4) height checking, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of the second convex hull punch 410, if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping, and if not, performing the operation of the step S2 again until the height is qualified.
Example two
The processing method of the convex hull shaping device for the small-size television backboard comprises the following steps:
s1, aligning a back plate, and placing the convex hull stretched on the back plate of the television at the second reshaping insert 400, wherein the axis of the convex hull is aligned with the axis of the second convex hull punch 410;
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity 320 of the first shaping insert 200, applying 160T pressure through the punch, opening the die of the upper template 100 and the lower template 200 after lasting 0.8S, and circulating the operation for 2 times, wherein the interval time of each time is 1.3S;
s3: and (4) height checking, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of the second convex hull punch 410, if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping, and if not, performing the operation of the step S2 again until the height is qualified.
EXAMPLE III
The processing method of the convex hull shaping device for the large-size television backboard comprises the following steps:
s1, aligning a back plate, and placing the convex hull stretched on the back plate of the television at the second reshaping insert 400, wherein the axis of the convex hull is aligned with the axis of the second convex hull punch 410;
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity 320 of the first shaping insert 200, applying 250T of pressure through the punch, opening the die of the upper template 100 and the lower template 200 after continuing for 0.7S, and circulating the operation for 3 times, wherein the interval time of each time is 1.5S;
s3: and (4) height checking, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of the second convex hull punch 410, if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping, and if not, performing the operation of the step S2 again until the height is qualified.
Example four
The processing method of the convex hull shaping device for the large-size television backboard comprises the following steps:
s1, aligning a back plate, and placing the convex hull stretched on the back plate of the television at the second reshaping insert 400, wherein the axis of the convex hull is aligned with the axis of the second convex hull punch 410;
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity 320 of the first shaping insert 200, applying 500T of pressure through the punch, opening the die of the upper template 100 and the lower template 200 after continuing for 0.5S, and circulating the operation for 2 times, wherein the interval time of each time is 2S;
s3: and (4) height checking, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of the second convex hull punch 410, if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping, and if not, performing the operation of the step S2 again until the height is qualified.
In the processing method of the convex hull shaping device, the convex hull is shaped by adopting an equal-interval repeated circulation die opening and closing convex stamping mode in the step of closing the die and shaping the convex stamping, after the process of stretching the convex hull, the convex hull part is fragile compared with other areas, compared with the existing one-time pressing shaping operation, the equal-interval repeated circulation pressing mode can reduce the time for pressing each time when the die is closed, the risk that the convex hull is broken due to overlong pressing time is effectively avoided, and the equal-interval repeated circulation pressing can effectively reduce the transverse deformation degree of the convex hull in the stress process.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A convex hull reshaping device, comprising an upper template (100) and a lower template (200), characterized by comprising:
the first shaping insert (300) is connected with the upper template (100), the first shaping insert (200) comprises a first convex hull punch head (310) and a convex hull cavity (320) from top to bottom, and the convex hull cavity (320) is in a circular truncated cone shape;
the second shaping insert (400) is connected with the lower template (200), the second shaping insert (400) corresponds to the first shaping insert (300) in position, the second shaping insert (400) comprises a second convex hull punch head (410), and the second convex hull punch head (410) is in a circular truncated cone shape.
2. A convex hull reshaping device according to claim 1, wherein the sides of the convex hull cavity (320) are spaced from the convex hull (500) by a distance of 0.1-0.3 mm.
3. The convex hull reshaping device according to claim 1, wherein the first reshaping insert (300) is integrally formed with the top template (100).
4. The convex hull reshaping device according to claim 1, wherein the first reshaping insert (300) is detachably connected to the top template (100).
5. The convex hull reshaping device according to claim 1, wherein the upper template (100) is provided with a first receiving groove (110) for receiving the first reshaping insert (300).
6. A convex hull reshaping device according to claim 1, characterized in that the side of the second convex hull punch (410) is spaced from the convex hull (500) by a distance of 0.1-0.3 mm.
7. The convex hull reshaping device according to claim 1, wherein the second reshaping insert (400) is integrally formed with the lower template (200).
8. The convex hull reshaping device according to claim 1, wherein the second reshaping insert (400) is removably attached to the lower template (200).
9. The convex hull reshaping device according to claim 1, wherein the lower template (200) is provided with a second receiving groove (210) for receiving the second reshaping insert (400), and the second convex hull punch (410) is arranged outside the second receiving groove (210).
10. A method of manufacturing a convex hull reshaping device according to any one of claims 1 to 9, comprising the steps of:
s1, aligning a back plate, and placing the convex hull stretched on the back plate of the television at a second shaping insert (400), wherein the axis of the convex hull is aligned with the axis of a second convex hull punch head (410);
s2, closing the die and shaping the convex punch, closing the upper template and the lower template, aligning the convex hull on the TV backboard to enter the convex hull cavity (320) of the first shaping insert (200), applying 60T-500T of pressure through the punch, opening the die of the upper template and the lower template after 0.5-1S of pressure, and circulating the operations for 2-3 times, wherein the interval time of each time is 1-2S;
s3: checking the height, namely checking whether the height of the convex hull after the shaping convex punching is consistent with that of a second convex hull punch head (410);
if so, taking down the television backboard to obtain the television backboard with qualified convex hull shaping;
if not, the operation of step S2 is performed again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596292.1A CN112845778A (en) | 2020-12-29 | 2020-12-29 | Convex hull shaping device and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011596292.1A CN112845778A (en) | 2020-12-29 | 2020-12-29 | Convex hull shaping device and machining method thereof |
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| CN113561511A (en) * | 2021-07-01 | 2021-10-29 | 东莞市豪顺精密科技有限公司 | Steel-plastic back plate and manufacturing method thereof |
| CN116493486A (en) * | 2023-06-25 | 2023-07-28 | 成都宏明双新科技股份有限公司 | Forming process for inner buckle of round cap |
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