CN212144080U - Pre-bending mechanism for manufacturing welding neck flange - Google Patents
Pre-bending mechanism for manufacturing welding neck flange Download PDFInfo
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- CN212144080U CN212144080U CN202020494223.9U CN202020494223U CN212144080U CN 212144080 U CN212144080 U CN 212144080U CN 202020494223 U CN202020494223 U CN 202020494223U CN 212144080 U CN212144080 U CN 212144080U
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- oil cylinder
- bending
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- machine base
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Abstract
The utility model discloses a fly-neck flange preparation is with preflex mechanism, its characterized in that: the device comprises a machine base, wherein a positioning block is arranged on the machine base, and a pre-bending lower die is arranged on the positioning block; a left stop block and a right stop block are symmetrically arranged on the left side and the right side of the positioning block, a first oil cylinder is arranged on the left side of the left stop block, and the first oil cylinder is fixed on a left side plate of the base; a second oil cylinder is arranged on the right side of the right stop block and fixed on a right side plate of the base; pressing dies are arranged at the front ends of the first oil cylinder and the second oil cylinder; the pre-bending lower die is characterized in that a pre-bending upper die is arranged above the pre-bending lower die and is connected with a third oil cylinder through a connecting plate, and the third oil cylinder is fixedly arranged at the top of the machine base. The advantages are pre-bending time saving; the working efficiency of pre-bending is improved; the pre-bending effect is stable, the workload of shaping the flange at the later stage of edge rolling is reduced, the labor intensity is greatly reduced, the working efficiency is improved, and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to a field of hubbed flange preparation especially relates to a pre-bending mechanism is used in fabrication of hubbed flange.
Background
In the manufacturing process of the welding neck flange, the linear L-shaped steel is required to be rolled and then welded; in order to enable the joints after being rolled to be better in butt joint, avoid the dislocation of flanging joints, reduce the shaping workload and facilitate welding, the two ends of the L-shaped section steel need to be pre-bent before being rolled; the pre-bending mechanism in the prior art cannot perform pre-bending of two dimensions simultaneously, and is complex in pre-bending operation, long in time and low in efficiency.
Disclosure of Invention
The utility model aims at providing a pre-bending mechanism for manufacturing a hubbed flange, which has simple structure and good stability and improves the pre-bending efficiency; the technical problem is solved.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a neck flange preparation is with preflex mechanism which characterized in that: the device comprises a machine base, wherein a positioning block is arranged on the machine base, and a pre-bending lower die is arranged on the positioning block; a left stop block and a right stop block are symmetrically arranged on the left side and the right side of the positioning block, a first oil cylinder is arranged on the left side of the left stop block, and the first oil cylinder is fixed on a left side plate of the base; a second oil cylinder is arranged on the right side of the right stop block and fixed on a right side plate of the base; pressing dies are arranged at the front ends of the first oil cylinder and the second oil cylinder; the pre-bending lower die is characterized in that a pre-bending upper die is arranged above the pre-bending lower die and is connected with a third oil cylinder through a connecting plate, and the third oil cylinder is fixedly arranged at the top of the machine base.
Preferably: the first oil cylinder and the second oil cylinder are horizontally arranged, and the third oil cylinder is vertically arranged; the third oil cylinder is used for pushing the pre-bending upper die to be matched with the pre-bending lower die and bending the surface of the inner diameter of the flange, so that the profile steel enters the rolling machine at a certain angle when being rolled to form a circle and is prevented from flanging; the first oil cylinder and the second oil cylinder are used for pushing the pressing die to be matched with the stop block and reversely bending the larger upper plane of the L-shaped steel; effectively avoid L shaped steel book system back tip joint department upwards warpage dislocation.
Preferably: the positioning block is provided with two grooves, and a lug arranged at the bottom of the pre-bending lower die is matched with the grooves; saving the time of die change, saving labor and reducing labor intensity.
Preferably: the bottom of the pre-bending upper die is arc-shaped, and the pre-bending lower die is provided with an arc-shaped groove matched with the pre-bending upper die; and the upper surface of the pre-bending lower die is set to be an arc with the radian being the same as that of the arc-shaped groove, so that the pre-bending effect is good.
Preferably: the connecting plate is vertically fixed with the upright column, and the fastening bolt sequentially passes through the fixing plate, the connecting plate and the pre-bending upper die of the third oil cylinder to connect and fix the pre-bending upper die with the third oil cylinder; the connection is stable, and the replacement is convenient.
Preferably: the pressing die is arranged to be L-shaped, is convenient to be matched with the section steel for placement, and improves the stability of reverse pre-bending of the section steel.
The utility model has the advantages that; a kind of hubbed flange makes and uses the preflex organization, compare with traditional structure: the structure is simple, the stability is good, and pre-bending of two dimensions can be realized on the same mechanism, the surface of the inner diameter of the pre-bending flange and the joint of the reverse pre-bending flange; the first oil cylinder and the second oil cylinder are arranged at the same time, so that pre-bending operation is facilitated, and pre-bending time is saved; the working efficiency of pre-bending is improved; the pre-bending effect is stable, the workload of shaping the flange at the later stage of edge rolling is reduced, the labor intensity is greatly reduced, the working efficiency is improved, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a view of the present invention from direction D of fig. 1;
FIG. 3 is a sectional view of the L-shaped steel of the present invention;
in the figure: 1. a machine base; 2. positioning blocks; 2-1, a groove; 3. pre-bending the lower die; 3-1, bumps; 3-2, arc groove; 4. a left stop block; 5. a right stopper; 6. a first cylinder; 7. a second cylinder; 8. pressing the die; 9. pre-bending an upper die; 10. a connecting plate; 11. a third oil cylinder; 12. and (4) a column.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: the utility model provides a neck flange preparation is with preflex mechanism which characterized in that: the device comprises a machine base 1, wherein a positioning block 2 is arranged on the machine base 1, and a pre-bending lower die 3 is arranged on the positioning block 2; a left stop block 4 and a right stop block 5 are symmetrically arranged on the left side and the right side of the positioning block 2, a first oil cylinder 6 is arranged on the left side of the left stop block 4, and the first oil cylinder 6 is fixed on a left side plate of the machine base 1; a second oil cylinder 7 is arranged on the right side of the right stop block 5, and the second oil cylinder 7 is fixed on the right side plate of the machine base 1; the front ends of the first oil cylinder 6 and the second oil cylinder 7 are respectively provided with a pressing die 8; the upper pre-bending die 9 is arranged above the lower pre-bending die 3, the upper pre-bending die 9 is connected with a third oil cylinder 11 through a connecting plate 10, and the third oil cylinder 11 is fixedly arranged at the top of the machine base 1.
The first oil cylinder 6 and the second oil cylinder 7 are horizontally arranged, and the third oil cylinder 11 is vertically arranged; the positioning block 2 is provided with two grooves 2-1, and a lug 3-1 arranged at the bottom of the pre-bending lower die 3 is matched with the grooves 2-1; the bottom of the upper pre-bending die 9 is arc-shaped, and the lower pre-bending die 3 is provided with an arc-shaped groove 3-2 matched with the upper pre-bending die 9; the upper surface of the pre-bending lower die 3 is set to be an arc with the radian same as that of the arc-shaped groove 3-2; the connecting plate 10 is vertically fixed with the upright post 12, and a fastening bolt sequentially passes through the fixing plate, the connecting plate and the pre-bending upper die at the front end of the third oil cylinder to connect and fix the pre-bending upper die 9 and the third oil cylinder 11; the stamp 8 is arranged in an L-shape.
The utility model discloses a concrete implementation: the section for manufacturing the hubbed flange is L-shaped, and the surface A of the section is the inner diameter circumferential surface of the hubbed flange; pre-bending step one: bending the surface of the inner diameter of the flange: the A surface of the section is placed upwards, the C part of the section is matched with the grooves of the pre-bending lower die, the third oil cylinder is started, the pre-bending upper die is matched with the pre-bending lower die, a certain angle is ensured to enter the rolling machine when the section steel is rolled, and the flanging is effectively prevented; step two: bending the B plane of the section: due to the reasons of gravity, stress and the like, the joint of the end part of the rolled section steel can be warped upwards and dislocated, so that the warped part is reversely bent in advance before rolling, the section steel is placed in a matched manner with the pressing die, the first oil cylinder or the second oil cylinder is started, the pressing die is matched with the stop block, and the surface B is reversely bent. The first oil cylinder and the second oil cylinder are arranged at the same time, so that pre-bending operation is facilitated, and pre-bending time is saved; because both ends of the section bar need to be pre-bent, only one end of the oil cylinder is arranged, the direction of the section bar needs to be changed back and forth, the consumed time is long, and the working strength is also increased.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (6)
1. The utility model provides a neck flange preparation is with preflex mechanism which characterized in that: the device comprises a machine base (1), wherein a positioning block (2) is arranged on the machine base (1), and a pre-bending lower die (3) is arranged on the positioning block (2); a left stop block (4) and a right stop block (5) are symmetrically arranged on the left side and the right side of the positioning block (2), a first oil cylinder (6) is arranged on the left side of the left stop block (4), and the first oil cylinder (6) is fixed on a left side plate of the base (1); a second oil cylinder (7) is arranged on the right side of the right stop block (5), and the second oil cylinder (7) is fixed on the right side plate of the machine base (1); the front ends of the first oil cylinder (6) and the second oil cylinder (7) are respectively provided with a pressing die (8); the upper pre-bending die is characterized in that an upper pre-bending die (9) is arranged above the lower pre-bending die (3), the upper pre-bending die (9) is connected with a third oil cylinder (11) through a connecting plate (10), and the third oil cylinder (11) is fixedly arranged at the top of the machine base (1).
2. A preflex mechanism for the manufacture of a hubbed flange as claimed in claim 1, wherein: the first oil cylinder (6) and the second oil cylinder (7) are horizontally arranged, and the third oil cylinder (11) is vertically arranged.
3. A preflex mechanism for the manufacture of a hubbed flange as claimed in claim 1, wherein: the positioning block (2) is provided with two grooves (2-1), and a lug (3-1) arranged at the bottom of the pre-bending lower die (3) is matched with the grooves (2-1).
4. A preflex mechanism for the manufacture of a hubbed flange as claimed in claim 1, wherein: the bottom of the upper pre-bending die (9) is arc-shaped, and the lower pre-bending die (3) is provided with an arc-shaped groove (3-2) matched with the upper pre-bending die (9); and the upper surface of the pre-bending lower die (3) is set to be arc-shaped with the radian same as that of the arc-shaped groove (3-2).
5. A preflex mechanism for the manufacture of a hubbed flange as claimed in claim 1, wherein: the connecting plate (10) is vertically fixed with the upright column (12), and the fastening bolt sequentially penetrates through the fixing plate, the connecting plate and the pre-bending upper die at the front end of the third oil cylinder to connect and fix the pre-bending upper die (9) with the third oil cylinder (11).
6. A preflex mechanism for the manufacture of a hubbed flange as claimed in claim 1, wherein: the pressing die (8) is arranged in an L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020494223.9U CN212144080U (en) | 2020-04-08 | 2020-04-08 | Pre-bending mechanism for manufacturing welding neck flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020494223.9U CN212144080U (en) | 2020-04-08 | 2020-04-08 | Pre-bending mechanism for manufacturing welding neck flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212144080U true CN212144080U (en) | 2020-12-15 |
Family
ID=73726388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020494223.9U Active CN212144080U (en) | 2020-04-08 | 2020-04-08 | Pre-bending mechanism for manufacturing welding neck flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212144080U (en) |
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2020
- 2020-04-08 CN CN202020494223.9U patent/CN212144080U/en active Active
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