CN111842559B - Omega-shaped hoop forming device and method - Google Patents
Omega-shaped hoop forming device and method Download PDFInfo
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- CN111842559B CN111842559B CN202010641925.XA CN202010641925A CN111842559B CN 111842559 B CN111842559 B CN 111842559B CN 202010641925 A CN202010641925 A CN 202010641925A CN 111842559 B CN111842559 B CN 111842559B
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
Abstract
The invention discloses a forming device and a forming method of an omega-shaped hoop, and belongs to the technical field of metal piece bending forming. Forming device of omega type clamp includes: a bending forming die, an auxiliary core rod and a knocking and repairing die; the bending die includes: a male die and a female die; the male die is provided with a bulge, and the female die is provided with a recess; the protrusion can be embedded into the recess; the auxiliary core rod is cylindrical; and a round necking groove is formed in the knocking and repairing die. The omega-type hoop forming device and method save labor and have high production efficiency.
Description
Technical Field
The invention relates to the technical field of metal piece bending forming, in particular to a forming device and a forming method of an omega-shaped hoop.
Background
Omega-type hoop products are widely applied to aerospace products and civil products. For aerospace products, because the number of omega-type hoop products is limited, the omega-type hoop products are generally produced by a manual bending mode, but the manual bending mode has the problems of difficult bending and low bending efficiency due to the complex appearance of parts.
Disclosure of Invention
The invention provides a forming device and a forming method of an omega-shaped hoop, which solve or partially solve the technical problems of difficult bending and low bending efficiency caused by the manual bending mode production of the omega-shaped hoop in the prior art.
In order to solve the above technical problem, the present invention provides a forming device for an omega type clamp, including: a bending forming die, an auxiliary core rod and a knocking and repairing die; the bending die includes: a male die and a female die; the male die is provided with a bulge, and the female die is provided with a recess; the protrusion can be embedded into the recess; the auxiliary core rod is cylindrical; and a round necking groove is formed in the knocking and repairing die.
Furthermore, the intersection of the protrusion and the horizontal side of the male die is a first round angle; the end face of the protrusion, which is far away from the convex die, is semicircular.
Furthermore, the intersection of the concave part and the horizontal edge of the concave die is a second fillet; the bottom of the recess is semicircular.
Furthermore, both ends of the end face, facing the male die, of the female die are provided with third round corners.
Further, a fourth fillet is arranged at the necking position of the circular necking groove.
Based on the same inventive concept, the application also provides a forming method of the omega-shaped hoop, which comprises the following steps: the method comprises the following steps of (1) carrying out brake pressing on an unfolded material of the omega-shaped hoop to obtain a U-shaped first semi-finished product; the opening of the first semi-finished product faces the female die and is placed on the female die, and the middle of the first semi-finished product is pressed into the recess of the female die by the protrusion of the male die to obtain a second semi-finished product; placing the auxiliary core rod into the arc of the second semi-finished product, and fixing the arc of the second semi-finished product; knocking the joint of the circular arc of the second semi-finished product and the straight edge of the second semi-finished product to obtain a third semi-finished product; and putting the third semi-finished product inserted with the auxiliary core rod into a circular necking groove formed in the knocking and repairing mold, knocking straight edges tilted at two sides of the third semi-finished product, and attaching the straight edges to the surface of the knocking and repairing mold to obtain the omega-shaped hoop.
Further, the brake pressing of the expanded material of the omega-type hoop comprises: acquiring an unfolded material of the omega-type hoop according to the external dimension of the omega-type hoop; scribing a brake line on the unfolded material; and pressing the unfolded material into a U shape according to the brake line on the unfolded material to obtain a first semi-finished product.
Further, the gate press fillet radius is consistent with a fourth fillet radius on the female die.
Further, the placing of the first semi-finished product with its opening facing the female mold on the female mold comprises: the inner molded surface of the first semi-finished product is attached to the outer molded surface of the female die.
And further knocking the joint of the circular arc of the second semi-finished product and the straight edge of the second semi-finished product to bend and form the straight edge around the circumferential direction of the auxiliary core rod.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the method comprises the steps of pressing the unfolded material of the omega-shaped hoop to obtain a U-shaped first semi-finished product, enabling an opening of the first semi-finished product to face a female die, placing the U-shaped first semi-finished product on the female die, pressing the middle part of the first semi-finished product into a recess of the female die by a protrusion of a male die to obtain a second semi-finished product, placing an auxiliary core rod into an arc of the second semi-finished product, fixing the arc of the second semi-finished product, knocking the joint of the arc of the second semi-finished product and a straight edge of the second semi-finished product to obtain a third semi-finished product, placing the third semi-finished product inserted with the auxiliary core rod into a circular necking groove formed in a knocking and trimming die, knocking the raised straight edges on two sides of the third semi-finished product to enable the straight edges to be attached to the surface of the knocking and trimming die to obtain the omega-shaped hoop, and is simple and convenient to bend, high in bending efficiency, improves production efficiency of products, and reduces workload of operators.
Drawings
FIG. 1 is a front view of an omega-type clamp according to an embodiment of the present invention;
FIG. 2 is a top view of the omega-type clamp of FIG. 1;
fig. 3 is a schematic structural view of a bending die of the omega-type clamp forming apparatus according to the embodiment of the present invention;
fig. 4 is a schematic structural view of an auxiliary core rod of the omega-type hoop forming apparatus according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a trimming die of a molding apparatus for an omega-type yoke according to an embodiment of the present invention;
FIG. 6 is an expanded view of an omega-type clamp according to an embodiment of the present invention;
FIG. 7 is a front view of a first semi-finished product of a method of forming an omega type clamp according to an embodiment of the present invention;
FIG. 8 is a left side view of the first blank of FIG. 7;
FIG. 9 is a schematic pre-press view of the first blank of FIG. 7;
FIG. 10 is a schematic drawing of a second blank from a method of forming an omega type clamp according to an embodiment of the present invention;
FIG. 11 is a schematic view of a second semi-finished omega type clamp according to an embodiment of the present invention;
FIG. 12 is a schematic view of a third semi-finished omega clip according to an embodiment of the present invention in bending;
FIG. 13 is a schematic view of the third blank of FIG. 12 after bending;
FIG. 14 is a schematic view of the third semi-finished product of FIG. 12;
FIG. 15 is a schematic pre-installation view of an omega-type clamp according to an embodiment of the present invention;
fig. 16 is a schematic diagram of an omega-type clip according to an embodiment of the present invention after being tampered with.
Detailed Description
Referring to fig. 1 to 5, an apparatus for forming an omega-type clamp according to an embodiment of the present invention includes: a bending forming die 1, an auxiliary core rod 2 and a knocking and repairing die 3.
The bending die includes: a male die 1-1 and a female die 1-2.
The male die 1-1 is provided with a bulge 1-3, and the female die 1-2 is provided with a recess 1-4.
The protrusions 1-3 may be embedded in the recesses 1-4.
The auxiliary core rod 2 is cylindrical.
The knocking and repairing die 3 is provided with a circular necking groove 3-1.
According to the specific embodiment of the application, as the unfolded material 8 of the omega-shaped hoop 4 is subjected to brake pressing to obtain a U-shaped first semi-finished product 5, the opening of the first semi-finished product 5 faces to the female die 1-2 and is placed on the female die 1-2, the middle part of the first semi-finished product 5 is pressed into the recess 1-4 of the female die 1-2 by the protrusion 1-3 of the male die 1-1 to obtain a second semi-finished product 6, the auxiliary core rod 2 is placed into the circular arc 6-1 of the second semi-finished product 6 and is fixed to the circular arc 6-1 of the second semi-finished product 6, the joint of the circular arc 6-1 of the second semi-finished product 6 and the straight edge 6-2 of the second semi-finished product 6 is knocked to obtain a third semi-finished product 7, the third semi-finished product 7 with the auxiliary core rod 2 inserted therein is placed into the circular necking groove 3-1 formed on the knocking and trimming die 3, and the tilted straight edges 7-1 on two sides of the third semi-finished product 7 are knocked, the straight edge 7-1 is attached to the surface of the knocking and trimming die 3 to obtain the omega-shaped hoop 4, the bending is simple and convenient, the bending efficiency is high, the production efficiency of products is improved, and the workload of operators is reduced.
The male die 1-1, the female die 1-2, the auxiliary core rod 2 and the knocking and repairing die 3 are all metal pieces.
Chamfers 2-1 are arranged at two ends of the auxiliary core rod 2 in the length direction, and the auxiliary core rod 2 is guided to enter an arc 6-1 of the second semi-finished product 6.
Specifically, the intersection of the protrusion 1-3 and the horizontal edge of the male die 1-1 is a first fillet 1-5; the end surface of the bulge 1-3 departing from the convex mould 1-1 is semicircular, so that the omega-shaped hoop 4 can be conveniently formed.
Specifically, the intersection of the recess 1-4 and the horizontal edge of the female die 1-2 is a second fillet 1-6; the bottom of the recess 1-4 is semicircular, which facilitates the forming of the omega-shaped clamp 4.
Specifically, the two ends of the end face, facing the male die 1-3, of the female die 1-2 are provided with third round corners 1-7, so that the omega-shaped hoop 4 can be conveniently formed.
Specifically, a fourth fillet 3-2 is arranged at the necking part of the circular necking groove 3-1, so that the omega-type hoop 4 can be conveniently molded.
Referring to fig. 6 to 16, based on the same inventive concept, the present application further provides a method for forming an omega-type band, including the steps of:
And 2, enabling the opening of the first semi-finished product 5 to face the female die 1-2, placing the first semi-finished product on the female die 1-2, and pressing the middle part of the first semi-finished product into the recess 1-4 of the female die 1-2 by the protrusion 1-3 of the male die 1-1 to obtain a second semi-finished product 6.
And 3, placing the auxiliary core rod 2 into the arc 6-1 of the second semi-finished product 6, and fixing the arc 6-1 of the second semi-finished product.
And 4, knocking the joint of the circular arc 6-1 of the second semi-finished product 6 and the straight edge 6-2 of the second semi-finished product 7 to obtain a third semi-finished product 7.
And 5, placing the third semi-finished product 7 inserted with the auxiliary core rod 2 into a circular necking groove 3-1 formed in the striking and trimming die 3, striking a raised straight edge 7-1 on two sides of the third semi-finished product 7, and attaching the straight edge 7-1 to the surface of the striking and trimming die 3 to obtain the omega-type hoop.
Carry out the floodgate to the expansion material of omega type clamp and include:
step 1-1, obtaining a spreading material 8 of the omega-type hoop 4 according to the external dimension of the omega-type hoop 4.
And step 1-2, scribing a brake line 8-1 on the spread material 8.
And step 1-3, pressing the unfolded gate into a U shape according to the gate line 8-1 on the unfolded material 8 to obtain a first semi-finished product.
The radius of the brake fillet 8-2 is consistent with the radius of the fourth fillet 3-2 on the concave die 1-2, so that the omega-type hoop 4 can be conveniently molded.
Specifically, placing the first semi-finished product 5 with its opening facing the female die 1-2 on the female die 1-2 comprises: the inner profile of the first semi-finished product 5 is attached to the outer profile of the female die 1-2, so that the omega-shaped hoop 4 can be conveniently formed.
Specifically, the joint of the circular arc 6-1 of the second semi-finished product 6 and the straight edge 6-2 of the second semi-finished product 6 is knocked, so that the straight edge 6-2 is bent and formed around the circumference direction of the auxiliary core rod 2.
To more clearly describe the embodiments of the present invention, the following description is provided in terms of the methods of using the embodiments of the present invention.
And calculating the unfolding material 8 of the omega-type hoop 4 according to the external dimension of the omega-type hoop 4.
And (3) scribing a brake line 8-1 on the expanded material 8, and pressing the expanded material 8 into a U shape according to the brake line 8-1 on the expanded material 8, wherein the radius of a brake fillet 8-2 is required to be consistent with that of a fillet on the female die.
And respectively fixing the male die and the female die on an upper working table and a lower working table of a 63T press machine.
The first semi-finished product 6 is reversely buckled on the upper surface of the female die 1-2, so that the inner profile of the first semi-finished product 6 is attached to the outer profile of the female die 1-2;
and adjusting an upper workbench of the 63T press to enable the male die 1-1 to be matched with the female die 1-2, namely pressing the middle part of the first semi-finished product into the recess 1-4 of the female die 1-2 by the bulge 1-3 of the male die 1-1 to obtain a second semi-finished product 6. And finishing the stamping forming of the circular arc 6-1 of the omega-shaped hoop.
And adjusting an upper workbench of the 63T press machine to separate the male die 1-1 from the female die 1-2, and taking out the second semi-finished product 6.
And (3) clamping the second semi-finished product 6 onto a vice 9 with an upward opening, and simultaneously placing the auxiliary core rod 2 into the arc 6-1 of the second semi-finished product 6 and fixing.
And knocking the joint of the arc 6-1 of the second semi-finished product 6 and the straight edge 6-2 of the second semi-finished product 6 by using a flat shovel 10 in sequence to bend and form the second semi-finished product around the auxiliary core rod 2 in the circumferential direction to obtain a third semi-finished product 7.
And taking the third semi-finished product 7 after bending forming and the auxiliary core rod 2 off the vice 9.
And putting the third semi-finished product 7 and the auxiliary core rod 2 into a circular necking groove 3-1 in the knocking and repairing die 3.
And knocking the straight edges 7-1 of the two sides of the third semi-finished product 7 to be attached to the surface of the knocking and repairing die 3 by using a hammer, and then sequentially taking out the auxiliary core rod 2 and the omega-shaped hoop 4 from the knocking and repairing die 3, namely the omega-shaped hoop is formed and finished, so that the bending is simple and convenient, the bending efficiency is high, the production efficiency of products is improved, and the workload of operators is reduced.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a forming method of omega type clamp, is based on the forming device of omega type clamp, forming device of omega type clamp includes: a bending forming die, an auxiliary core rod and a knocking and repairing die; the bending die includes: a male die and a female die; the male die is provided with a bulge, and the female die is provided with a recess; the protrusion can be embedded into the recess; the auxiliary core rod is cylindrical; the knocking and repairing die is provided with a circular necking groove; the omega-type hoop forming method is characterized by comprising the following steps:
the method comprises the following steps of (1) carrying out brake pressing on an unfolded material of the omega-shaped hoop to obtain a U-shaped first semi-finished product;
the opening of the first semi-finished product faces the female die and is placed on the female die, and the middle of the first semi-finished product is pressed into the recess of the female die by the protrusion of the male die to obtain a second semi-finished product;
placing the auxiliary core rod into the arc of the second semi-finished product, and fixing the arc of the second semi-finished product;
knocking the joint of the circular arc of the second semi-finished product and the straight edge of the second semi-finished product to obtain a third semi-finished product;
and putting the third semi-finished product inserted with the auxiliary core rod into a circular necking groove formed in the knocking and repairing mold, knocking straight edges tilted at two sides of the third semi-finished product, and attaching the straight edges to the surface of the knocking and repairing mold to obtain the omega-shaped hoop.
2. The method of forming an omega clip of claim 1, wherein:
the intersection of the protrusion and the horizontal edge of the male die is a first fillet;
the end face of the protrusion, which is far away from the convex die, is semicircular.
3. The method of forming an omega clip of claim 1, wherein:
the intersection of the concave part and the horizontal edge of the female die is a second fillet;
the bottom of the recess is semicircular.
4. The method of forming an omega clip of claim 1, wherein:
and third round corners are arranged at two ends of the end surface of the female die, which faces the male die.
5. The method of forming an omega clip of claim 1, wherein:
and a fourth fillet is arranged at the necking part of the circular necking groove.
6. The method of forming an omega clip of claim 1, wherein the step of pressing against the expanse of the omega clip comprises:
acquiring an unfolded material of the omega-type hoop according to the external dimension of the omega-type hoop;
scribing a brake line on the unfolded material;
and (5) unfolding and pressing the material into a U shape according to the brake line on the unfolded material to obtain a first semi-finished product.
7. The method of forming an omega clip of claim 6, wherein:
the radius of the brake fillet is consistent with the radius of the third fillet on the female die.
8. The method of forming an omega-type clamp of claim 1, wherein placing the first semi-finished product with the opening facing the cavity on the cavity comprises:
the inner molded surface of the first semi-finished product is attached to the outer molded surface of the female die.
9. The method of forming an omega clip of claim 1, wherein:
knocking the joint of the circular arc of the second semi-finished product and the straight edge of the second semi-finished product to bend and form the straight edge around the circumferential direction of the auxiliary core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010641925.XA CN111842559B (en) | 2020-07-06 | 2020-07-06 | Omega-shaped hoop forming device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010641925.XA CN111842559B (en) | 2020-07-06 | 2020-07-06 | Omega-shaped hoop forming device and method |
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| Publication Number | Publication Date |
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| CN111842559A CN111842559A (en) | 2020-10-30 |
| CN111842559B true CN111842559B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010641925.XA Active CN111842559B (en) | 2020-07-06 | 2020-07-06 | Omega-shaped hoop forming device and method |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB258639A (en) * | 1925-06-19 | 1926-09-20 | Joseph Henry Banks | Improvements in bolts for doors, cupboards, and like purposes |
| JPH03146223A (en) * | 1989-10-31 | 1991-06-21 | Asahi Seiki Kogyo Kk | Bending method for ultraelastic material like shape memory alloy |
| JP4558960B2 (en) * | 2001-02-05 | 2010-10-06 | 株式会社キャタラー | Method for manufacturing corrugated sheet for catalyst support, corrugated sheet and catalyst support |
| CN203343227U (en) * | 2013-05-17 | 2013-12-18 | 国家电网公司 | Omega-type connecting piece cold roll forming device |
| CN103817236B (en) * | 2013-10-30 | 2017-04-05 | 北京星航机电装备有限公司 | A kind of Ω shapes metalwork bending mould and its manufacturing process |
| CN210450702U (en) * | 2019-08-01 | 2020-05-05 | 重庆铁马工业集团有限公司 | Thin-wall hinge forming and processing device |
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