Forming tool for super belt straight section eccentric reducing pipe

Abstract

The utility model relates to the technical field of reducing pipe forming tools, and provides a super belt straight section eccentric reducing pipe forming tool which comprises a base and a forming structure, supporting plates are fixed to the two sides of the top end of the base, a top plate is fixed to the top ends of the supporting plates, a pipeline is placed at the top end of the base, and the forming structure is arranged on the top end of the base. A clamping structure is arranged in the base, and a forming structure is arranged in the supporting plate. According to the pipeline forming device, the forming structure is arranged, the double-head motor is started to drive the two sets of rotating shafts to rotate synchronously, then the positioning block and the clamping block move downwards synchronously, the pipeline is limited, the pipeline is extruded and formed through the forming mold, and the pipeline pressing and forming precision is ensured; and the positioning block and the threaded cylinder are mounted and connected through a bolt, so that molds with different specifications and sizes can be conveniently replaced according to the pore size of the pipeline, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of forming tooling for reducing pipes, and in particular to a forming tooling for a super eccentric reducing pipe with a straight section. Background Technology

[0002] Reducer forming fixtures are specialized equipment or devices used to manufacture reducers. Their function is to process pipes, plates, or other profiles into pipe fittings of different diameters through mechanical, hydraulic, stamping, or spinning methods. A super-sized eccentric reducer forming fixture with a straight section is a special pipe connector featuring eccentricity, diameter reduction, and a combination of straight sections. This forming fixture needs to meet high-precision and high-efficiency processing requirements.

[0003] To address this, patent CN217665653U discloses a forming fixture for a super-sized eccentric reducer with a straight section. The fixture includes a base plate, a horizontal plate above the base plate, and four vertical plates that are fixedly connected to the base plate. Two clamping plates are located above the base plate, and an adjustment mechanism for adjusting the clamping plates is located between the four vertical plates. A support column is located above the base plate, and a U-shaped plate is fixedly connected to the upper end of the support column. Two sliding grooves are provided on the horizontal plate that are slidably connected to the U-shaped plate. A lifting mechanism is located inside the U-shaped plate, and shaped blocks are slidably connected to the side walls of the U-shaped plate. A driving mechanism for driving the shaped blocks is located on the horizontal plate. When pressing the pipe, this invention prevents bending and wrinkling of the pipe, and the U-shaped plate limits the straight section, preventing bending and resulting in a better pressing effect.

[0004] The forming fixture for the super-straight eccentric reducer mentioned above is not convenient for disassembling and assembling the support column and the irregular block during use. This makes it inconvenient to change the mold of different specifications and sizes according to the pipe diameter. When clamping and limiting the pipe, each mechanism operates independently, resulting in insufficient coordination. In addition, the sliding connection of the return plate may pose a risk of shaking, which reduces the accuracy of the limit. Utility Model Content

[0005] The purpose of this invention is to provide a forming tool for a super-sized eccentric reducer with a straight section, in order to solve the defects of existing forming tooling for super-sized eccentric reducers with straight sections that is inconvenient to replace and has insufficient limiting accuracy.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a forming tool for a super eccentric reducer with a straight section, including a base and a forming structure;

[0007] Support plates are fixed on both sides of the top of the base, a top plate is fixed on the top of the support plates, a pipe is placed on the top of the base, and a clamping structure is provided inside the base.

[0008] The support plate has a molding structure inside, which includes a second internal cavity inside the support plate. A rotating screw is installed inside the second internal cavity, and a second moving block is installed outside the rotating screw. A second sliding groove is provided on one side of the support plate. A second slider is fixed to one side of the second moving block inside the second sliding groove. A second telescopic rod is fixed to one side of the second slider. A double-headed motor is fixed to one side of the top of the top plate. A rotating shaft is fixed to both ends of the double-headed motor. A first bevel gear is fixed to one end of each rotating shaft, and a second bevel gear is installed on one side of each first bevel gear.

[0009] Preferably, the clamping structure includes a first built-in cavity disposed inside the base, a bidirectional lead screw installed inside the first built-in cavity, a drive motor fixed to one end of the bidirectional lead screw outside the base, a first moving block installed outside the bidirectional lead screw inside the first built-in cavity, a first sliding groove provided on both sides of the top of the base, a first slider fixed to the top of the first moving block inside the first sliding groove, a first telescopic rod fixed to the top of the first slider, a connecting block fixed to the top of the first telescopic rod, and a clamping block fixed to one side of the connecting block.

[0010] Preferably, the first moving blocks are symmetrically distributed on the outside of the bidirectional lead screw inside the first built-in cavity, and the first moving blocks are threadedly connected to the bidirectional lead screw.

[0011] With the above structure, the first moving block can move synchronously in both directions outside the double-acting screw during use, thereby ensuring that the pipe is clamped in the center.

[0012] Preferably, one side of the clamping block is arc-shaped, and one side of the clamping block abuts against the outer side of the pipe.

[0013] The above structure allows the clamping block to hold the outside of the pipe during use, ensuring that the pipe does not shift during processing.

[0014] Preferably, a third bevel gear is fixed to the outer side of the rotating shaft, a fourth bevel gear is installed on one side of the third bevel gear, a threaded rod is fixed to the bottom end of the fourth bevel gear, a threaded cylinder is installed on the outer side of the threaded rod at the bottom end of the top plate, a positioning block is installed at the bottom end of the threaded cylinder, a forming mold is fixed to the top end of the positioning block, connecting rods are fixed on both sides of the top of the threaded cylinder, and a third slider is fixed to one end of the connecting rod.

[0015] Preferably, one end of the second telescopic rod is fixedly connected to one side of the connecting block.

[0016] Preferably, the second movable block is threadedly connected to the rotating screw, and the top end of the rotating screw extends through the top end of the support plate to the top end of the top plate and is fixedly connected to the bottom end of the second bevel gear. The second bevel gear is meshed with the first bevel gear.

[0017] With the above structure, during use, the two sets of second moving blocks move synchronously on the outside of the rotating screw, thereby driving the two sets of clamping blocks to move synchronously. The thread length on the outside of the rotating screw is the same as the thread length on the outside of the threaded rod. The top of the clamping block and the top of the positioning block are located on the same horizontal plane, thereby ensuring that the clamping block and the positioning block move synchronously and remain on the same horizontal plane, thus playing a limiting role for the pipeline.

[0018] Preferably, the third bevel gear and the fourth bevel gear are meshed together, the threaded rod and the threaded cylinder are threaded together, the diameter of the positioning block is the same as the inner diameter of the pipe, and the positioning block is fixedly connected to the bottom end of the threaded cylinder by bolts.

[0019] The above structure makes it easy to change molds of different sizes according to the diameter of the pipe, thus facilitating use.

[0020] Preferably, one side of the forming mold is set at a right angle, the other side of the forming mold is set at an oblique angle, the connecting rods are symmetrically distributed on both sides of the top of the threaded cylinder, and the third slider and the support plate are slidably connected through the second sliding groove.

[0021] With the above structure, the threaded rod will not drive the threaded cylinder to rotate during use, ensuring that the threaded cylinder moves outside the threaded rod, and ensuring the stability of the threaded cylinder when it moves downward.

[0022] The present invention provides a forming fixture for a super-sized eccentric reducer with a straight section, the advantages of which are:

[0023] By incorporating a clamping structure, the drive motor rotates the bidirectional lead screw, causing two sets of clamping blocks to move closer together and clamp the outer side of the pipe. This serves to center the pipe and ensure that it does not shift during processing.

[0024] With a forming structure, the two sets of rotating shafts are driven to rotate synchronously by a dual-head motor, which in turn causes the positioning block and clamping block to move downward synchronously, thus limiting the pipe. This allows the forming mold to extrude and form the pipe, ensuring the accuracy of the pipe pressing and forming. The positioning block and the threaded cylinder are connected by bolts, which makes it easy to replace the mold of different sizes according to the pipe diameter, making it convenient to use. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic cross-sectional view of the present invention.

[0027] Figure 3 This is a side sectional view of the present invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the molding structure of this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the clamping structure of this utility model.

[0030] The reference numerals in the diagram are as follows: 1. Base; 2. Support plate; 3. Top plate; 4. Pipe; 5. Clamping structure; 501. First internal cavity; 502. Bidirectional lead screw; 503. Drive motor; 504. First moving block; 505. First slide groove; 506. First slider; 507. First telescopic rod; 508. Connecting block; 509. Clamping block; 6. Forming structure; 601. Second internal cavity; 602. Rotating lead screw; 603. Second moving block; 604. Second slide groove; 605. Second slider; 606. Second telescopic rod; 607. Dual-head motor; 608. Rotating shaft; 609. First bevel gear; 610. Second bevel gear; 611. Third bevel gear; 612. Fourth bevel gear; 613. Threaded rod; 614. Threaded cylinder; 615. Positioning block; 616. Forming mold; 617. Connecting rod; 618. Third slider. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-5 The present invention provides a forming tool for a super eccentric reducer with a straight section, comprising a base 1 and a forming structure 6.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, support plates 2 are fixed to both sides of the top of the base 1, and a top plate 3 is fixed to the top of the support plates 2. A pipe 4 is placed on the top of the base 1. A clamping structure 5 is provided inside the base 1. The clamping structure 5 includes a first internal cavity 501 disposed inside the base 1. A bidirectional lead screw 502 is installed inside the first internal cavity 501. A drive motor 503 is fixed to one end of the bidirectional lead screw 502 on the outside of the base 1. A first moving block 504 is installed on the outside of the bidirectional lead screw 502 inside the first internal cavity 501. A first sliding groove 505 is provided on both sides of the top of the base 1. The top of the first movable block 504 inside the first chute 505 is fixed with a first slider 506, the top of the first slider 506 is fixed with a first telescopic rod 507, the top of the first telescopic rod 507 is fixed with a connecting block 508, and a clamping block 509 is fixed on one side of the connecting block 508. The first movable blocks 504 are symmetrically distributed on the outside of the bidirectional lead screw 502 inside the first internal cavity 501. The first movable blocks 504 and the bidirectional lead screw 502 are threadedly connected. One side of the clamping block 509 is arc-shaped and abuts against the outside of the pipe 4.

[0034] By placing the pipe 4 on top of the base 1, and then starting the drive motor 503 to drive the bidirectional lead screw 502 to rotate, the two sets of first moving blocks 504, under the action of threaded connection, slide through the first slider 506 inside the first slide groove 505, thereby driving the two sets of first telescopic rods 507 to make the connecting block 508 drive the clamping block 509 to move closer to each other and clamp the outside of the pipe 4, thus playing the role of center positioning of the pipe 4 and ensuring that the pipe 4 will not deviate during processing.

[0035] Reference Figures 1-4As shown, the support plate 2 has a molding structure 6 inside. The molding structure 6 includes a second internal cavity 601 inside the support plate 2. A rotating lead screw 602 is installed inside the second internal cavity 601. A second moving block 603 is installed outside the rotating lead screw 602. A second sliding groove 604 is provided on one side of the support plate 2. A second slider 605 is fixed to one side of the second moving block 603 inside the second sliding groove 604. A second telescopic rod 606 is fixed to one side of the second slider 605. A double-headed motor 607 is fixed to one side of the top of the top plate 3. The dual-head motor 607 has rotating shafts 608 fixed at both ends. A first bevel gear 609 is fixed to one end of each rotating shaft 608. A second bevel gear 610 is installed on one side of the first bevel gear 609. A third bevel gear 611 is fixed to the outside of the rotating shaft 608. A fourth bevel gear 612 is installed on one side of the third bevel gear 611. A threaded rod 613 is fixed to the bottom end of the fourth bevel gear 612. A threaded cylinder 614 is installed on the outside of the threaded rod 613 at the bottom end of the top plate 3. A positioning block 615 is installed at the bottom end of the threaded cylinder 614. A forming mold 616 is fixed to the top of the positioning block 615. Connecting rods 617 are fixed to both sides of the top of the threaded cylinder 614. A third slider 618 is fixed to one end of each connecting rod 617. One end of the second telescopic rod 606 is fixedly connected to one side of the connecting block 508. The second moving block 603 is threadedly connected to the rotating screw 602. The top of the rotating screw 602 extends through the top of the support plate 2 to the top of the top plate 3 and is fixedly connected to the bottom of the second bevel gear 610. The second bevel gear 610 and the first bevel gear 609 are aligned... The three bevel gears 611 and 612 are meshed together, the threaded rod 613 is threadedly connected to the threaded cylinder 614, the diameter of the positioning block 615 is the same as the inner diameter of the pipe 4, the positioning block 615 is fixedly connected to the bottom end of the threaded cylinder 614 by bolts, one side of the forming mold 616 is set at a right angle, the other side of the forming mold 616 is set at an oblique angle, the connecting rods 617 are symmetrically distributed on both sides of the top of the threaded cylinder 614, and the third slider 618 and the support plate 2 are slidably connected through the second sliding groove 604.

[0036] By activating the dual-head motor 607, two sets of rotating shafts 608 are driven to rotate synchronously. This causes the first bevel gear 609 to drive the second bevel gear 610, which in turn causes the rotating screw 602 to rotate. Consequently, the second moving block 603, under the action of the threaded connection, slides through the second slider 605 inside the second slide groove 604. This, in turn, drives the second telescopic rod 606, causing the connecting block 508 to drive the clamping block 509 to slide on the outside of the pipe 4. This facilitates moving the clamping block 509 to the desired clamping position. Simultaneously, the rotation of the rotating shaft 608 drives the third bevel gear 611 to drive the fourth bevel gear 602. The gear 612 drives the threaded rod 613 to rotate, which in turn causes the threaded cylinder 614 to move under the action of the threaded connection. This causes the connecting rod 617 to drive the third slider 618 to slide inside the second slide groove 604. Consequently, the threaded cylinder 614 drives the positioning block 615 and the clamping block 509 to move downward synchronously. This allows the forming mold 616 to extrude and form the pipe 4, ensuring the accuracy of the pipe 4 pressing and forming. The positioning block 615 and the threaded cylinder 614 are connected by bolts, which facilitates the replacement of molds of different sizes according to the diameter of the pipe 4, making it convenient to use.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forming tool for a super eccentric reducer with a straight section, comprising a base (1) and a forming structure (6); Its features are: Support plates (2) are fixed on both sides of the top of the base (1), and a top plate (3) is fixed on the top of the support plate (2). A pipe (4) is placed on the top of the base (1), and a clamping structure (5) is provided inside the base (1). The support plate (2) is provided with a molding structure (6) inside. The molding structure (6) includes a second built-in cavity (601) provided inside the support plate (2). A rotating screw (602) is installed inside the second built-in cavity (601). A second moving block (603) is installed on the outside of the rotating screw (602). A second slide groove (604) is provided on one side of the support plate (2). A second slider (605) is fixed on one side of the second moving block (603) inside the second slide groove (604). A second telescopic rod (606) is fixed on one side of the second slider (605). A double-head motor (607) is fixed on one side of the top of the top plate (3). A rotating shaft (608) is fixed at both ends of the double-head motor (607). A first bevel gear (609) is fixed at one end of the rotating shaft (608). A second bevel gear (610) is installed on one side of the first bevel gear (609).

2. The forming tooling for a super-sized eccentric reducer with a straight section according to claim 1, characterized in that: The clamping structure (5) includes a first built-in cavity (501) disposed inside the base (1). A bidirectional lead screw (502) is installed inside the first built-in cavity (501). A drive motor (503) is fixed to one end of the bidirectional lead screw (502) outside the base (1). A first moving block (504) is installed on the outside of the bidirectional lead screw (502) inside the first built-in cavity (501). A first sliding groove (505) is provided on both sides of the top of the base (1). A first slider (506) is fixed to the top of the first moving block (504) inside the first sliding groove (505). A first telescopic rod (507) is fixed to the top of the first slider (506). A connecting block (508) is fixed to the top of the first telescopic rod (507). A clamping block (509) is fixed to one side of the connecting block (508).

3. The forming tooling for a super-sized eccentric reducer with a straight section according to claim 2, characterized in that: The first moving block (504) is symmetrically distributed on the outside of the bidirectional lead screw (502) inside the first built-in cavity (501), and the first moving block (504) is threadedly connected to the bidirectional lead screw (502).

4. The forming tooling for a super-sized eccentric reducer with a straight section according to claim 2, characterized in that: One side of the clamping block (509) is arc-shaped, and one side of the clamping block (509) abuts against the outside of the pipe (4).

5. The forming fixture for a super-sized eccentric reducer with a straight section according to claim 1, characterized in that: A third bevel gear (611) is fixed to the outside of the rotating shaft (608). A fourth bevel gear (612) is installed on one side of the third bevel gear (611). A threaded rod (613) is fixed to the bottom end of the fourth bevel gear (612). A threaded cylinder (614) is installed on the outside of the threaded rod (613) at the bottom end of the top plate (3). A positioning block (615) is installed at the bottom end of the threaded cylinder (614). A forming mold (616) is fixed to the top end of the positioning block (615). Connecting rods (617) are fixed to both sides of the top of the threaded cylinder (614). A third slider (618) is fixed to one end of the connecting rod (617).

6. The forming fixture for a super-sized eccentric reducer with a straight section according to claim 2, characterized in that: One end of the second telescopic rod (606) is fixedly connected to one side of the connecting block (508).

7. The forming tooling for a super-sized eccentric reducer with a straight section according to claim 1, characterized in that: The second moving block (603) is threadedly connected to the rotating screw (602). The top end of the rotating screw (602) extends through the top end of the support plate (2) to the top end of the top plate (3) and is fixedly connected to the bottom end of the second bevel gear (610). The second bevel gear (610) is meshed with the first bevel gear (609).

8. The forming fixture for a super-sized eccentric reducer with a straight section according to claim 5, characterized in that: The third bevel gear (611) and the fourth bevel gear (612) are meshed together, the threaded rod (613) and the threaded cylinder (614) are threaded together, the diameter of the positioning block (615) is the same as the inner diameter of the pipe (4), and the positioning block (615) is fixedly connected to the bottom end of the threaded cylinder (614) by bolts.

9. The forming fixture for a super-sized eccentric reducer with a straight section according to claim 5, characterized in that: One side of the forming mold (616) is set at a right angle, and the other side of the forming mold (616) is set at an oblique angle. The connecting rod (617) is symmetrically distributed on both sides of the top of the threaded cylinder (614). The third slider (618) and the support plate (2) are slidably connected through the second slide groove (604).

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