Bending forming device for square metal tube
The laser cutting, bending, and welding processes of the metal square tube bending forming device have solved the problems of easy deformation and cracking when square tubes are directly bent, achieving a stable and rapid forming process and improving the overall strength of the metal square tubes.
Patent Information
- Application Number
- CN202422649915.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing metal square tubes are prone to deformation and cracking during direct bending, and require annealing treatment, which affects their overall strength.
A bending and forming device for metal square tubes is adopted. Through a combination of laser cutting, bending and welding, the electric push rod drives the transmission frame and guide rollers to achieve stable bending of the square tube. The guide rollers are connected to the square tube by an elastic ring to avoid extrusion deformation.
This method enables rapid and stable forming of square tubes, avoiding deformation and cracks in bent areas and improving overall strength.
Smart Images
Figure CN223505937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending and forming technology, specifically to a bending and forming device for metal square tubes. Background Technology
[0002] Metal square tubing is a square-shaped tube widely used in construction, machinery manufacturing, and steel construction. It is primarily composed of steel pipes, which are unpacked, flattened, rolled, and welded into round tubes, then rolled into square tubes and cut to the required lengths. It comes in various specifications and requires bending during application.
[0003] Existing methods for bending square tubes directly can easily lead to deformation and cracking at the bending points, affecting the overall strength. Furthermore, the square tubes require annealing. Therefore, these methods do not meet current requirements. To address this, we propose a bending and forming device for metal square tubes. Utility Model Content
[0004] The purpose of this utility model is to provide a bending and forming device for metal square tubes, so as to solve the problems mentioned in the background art, such as the existing method of directly bending square tubes, which easily causes deformation and cracks at the bending part under stress, affecting the overall strength, and the need for annealing treatment of square tubes.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending and forming device for metal square tubes, comprising a laser cutting machine tool and a support base. The laser cutting machine tool includes a machine tool body, a fixture and a laser cutting head are mounted on the inner side of the machine tool body, the laser cutting head is located directly above the fixture, and the square tube body is mounted on the inner side of the fixture. An electric push rod is fixedly mounted on the inner side of the support base, a transmission angle plate is fixedly mounted on the output end of the electric push rod, a transmission frame is mounted on the upper end of the transmission angle plate, guide wheels are rotatably connected to both ends of the transmission frame, and the outer side of the transmission angle plate is slidably connected to... The device includes a supporting partition, on the upper surface of which a positioning block is fixedly installed. A reset frame is slidably connected to the inner side of the positioning block. Swing plates are movably installed at both ends of the reset frame. A partition mounting plate is fixedly installed on the upper surface of the positioning block. The upper surface of the partition mounting plate is provided with four arc-shaped guide grooves. Six guide rollers are movably installed on the inner side of the four arc-shaped guide grooves. A welding positioning seat is installed on the outside of the six guide rollers. A welding torch is movably installed in the middle of the welding positioning seat. The welding torch can be rotated and adjusted on the inner side of the middle of the welding positioning seat to weld the square tube body.
[0006] Preferably, the guide roller includes a rotating shaft, and a roller body is fixedly installed on the outer side of the upper end of the rotating shaft. Limiting rings are installed on both the upper and lower end faces of the roller body, and an elastic ring is provided on the outer side of the roller body. The square tube body can be positioned when clamped by six guide rollers.
[0007] Preferably, the partition mounting plate and the support partition are both fixedly connected to the support base. The middle part of the support partition has two swing plates that pass through it and are inserted into the inner side of the middle part of the partition mounting plate. The bottom end of the rotating shaft passes through the arc-shaped guide groove and is inserted into the inner side of the swing plate. The rotating shaft is rotatably connected to the swing plate.
[0008] Preferably, the rotating shaft is threadedly connected to the two adjacent limiting rings, the roller body is connected to the square tube body through an elastic ring, and the two swing plates swing back and forth in opposite directions relative to the center of the supporting partition. When the two swing plates swing towards each other, they can bend the square tube body.
[0009] Preferably, both ends of the transmission frame are connected to the two oscillating plates via guide wheels, and the guide wheels are in rolling connection with the sides of the oscillating plates.
[0010] Preferably, the two ends of the reset frame pass through the positioning block and are in contact with the swing plate, and the middle part of the reset frame is connected to the positioning block by a spring.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model involves placing the square tube body between six guide rollers after it has been cut. An electric push rod drives the transmission frame to slide horizontally through a transmission angle plate. The transmission frame then pushes two swing plates through two guide wheels. At this time, the two swing plates drive the six guide rollers to swing in opposite directions relative to the center of the support partition. The six guide rollers then drive the two ends of the square tube body to bend. When the two swing plates come into contact with the two sides of the positioning block, the square tube body is bent into shape.
[0013] 2. This utility model achieves rapid and stable forming of the square tube body by welding the body. The forming process involves cutting, bending, and welding in sequence, which avoids deformation and cracking at the bending points. The two swing plates swing in opposite directions under the support of springs via a reset frame, which facilitates automatic reset of the guide rollers. The roller body of the guide roller is connected to the square tube body through an elastic ring, which prevents the roller body from being squeezed and deformed on the surface of the square tube body when the guide roller drives the square tube body to bend. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the installation structure after the square tube body of this utility model has been cut;
[0016] Figure 3 This is a cross-sectional structural diagram of the entire utility model;
[0017] Figure 4 This is a partial cross-sectional structural diagram of the guide roller of this utility model;
[0018] Figure 5 This is a cross-sectional structural diagram of the support base of this utility model;
[0019] Figure 6 This is a cross-sectional structural diagram of the oscillating plate of this utility model.
[0020] In the diagram: 1. Support base; 2. Separator mounting plate; 3. Square tube body; 4. Welded positioning seat; 5. Guide roller; 6. Arc-shaped guide groove; 7. Support partition; 8. Electric push rod; 9. Transmission angle plate; 10. Swing plate; 11. Rotating shaft; 12. Limiting ring; 13. Roller body; 14. Elastic ring; 15. Transmission frame; 16. Positioning block; 17. Reset frame; 18. Guide wheel. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] The electric actuator 8 (model HTKC-35) mentioned in this utility model can be obtained from the market or through private customization.
[0023] Please see Figures 1 to 6This utility model provides an embodiment of a bending and forming device for metal square tubes, comprising a laser cutting machine tool and a support base 1. The laser cutting machine tool includes a machine tool body, a fixture and a laser cutting head are installed on the inner side of the machine tool body, the laser cutting head is located directly above the fixture, a square tube body 3 is installed on the inner side of the fixture, an electric push rod 8 is fixedly installed on the inner side of the support base 1, a transmission angle plate 9 is fixedly installed at the output end of the electric push rod 8, a transmission frame 15 is installed at the upper end of the transmission angle plate 9, and guide wheels 18 are rotatably connected to both ends of the transmission frame 15. A support partition 7 is slidably connected to the outer side of the transmission angle plate 9. A positioning block 16 is fixedly installed on the upper end surface of the support partition 7. A reset frame 17 is slidably connected to the inner side of the positioning block 16. Swing plates 10 are movably installed at both ends of the reset frame 17. Both ends of the transmission frame 15 are connected to the two swing plates 10 through guide wheels 18. The guide wheels 18 are rolledly connected to the side of the swing plates 10. The transmission frame 15 pushes the two swing plates 10 through the two guide wheels 18 to avoid direct contact between the transmission frame 15 and the swing plates 10, which would cause the swing plates 10 to swing and get stuck.
[0024] The two ends of the reset frame 17 pass through the positioning block 16 and are in contact with the swing plate 10. The middle part of the reset frame 17 is connected to the positioning block 16 by a spring, so that the two swing plates 10 swing in opposite directions under the support of the spring through the reset frame 17, thereby facilitating the automatic reset of the guide roller 5.
[0025] Please see Figure 3 and Figure 5 The upper end face of the positioning block 16 is fixedly installed with a partition mounting plate 2. Both the partition mounting plate 2 and the support partition plate 7 are fixedly connected to the support base 1. Two swing plates 10 pass through the middle of the support partition plate 7 and are inserted into the inner side of the middle of the partition mounting plate 2. The two swing plates 10 swing back and forth in opposite directions relative to the center of the support partition plate 7. When the two swing plates 10 swing towards each other, they can bend the square tube body 3. Specifically, when the two swing plates 10 drive the six guide rollers 5 to swing relative to the center of the support partition plate 7, the six guide rollers 5 drive the two ends of the square tube body 3 to bend.
[0026] Please see Figures 2 to 5The upper surface of the partition mounting plate 2 is provided with four arc-shaped guide grooves 6. Six guide rollers 5 are movably installed inside the four arc-shaped guide grooves 6. A welding positioning seat 4 is installed outside the six guide rollers 5. A welding torch is movably installed in the middle of the welding positioning seat 4. The welding torch can be rotated and adjusted inside the middle of the welding positioning seat 4 to weld the tube body 3. The welding guide rollers 5 include a rotating shaft 11. The bottom end of the rotating shaft 11 passes through the arc-shaped guide grooves 6 and is inserted into the inner side of the swing plate 10. The rotating shaft 11 is rotatably connected to the swing plate 10. A roller main is fixedly installed on the outer side of the upper end of the rotating shaft 11. The roller body 13 has limit rings 12 installed on both its upper and lower ends. An elastic ring 14 is provided on the outer side of the roller body 13. The square tube body 3 can be positioned when clamped by six guide rollers 5. The rotating shaft 11 is connected to the two adjacent limit rings 12 by threads. The roller body 13 is connected to the square tube body 3 by the elastic ring 14. The connection between the roller body 13 and the square tube body 3 by the elastic ring 14 prevents the roller body 13 from being squeezed and deformed on the surface of the square tube body 3 when the guide rollers 5 drive the square tube body 3 to bend.
[0027] In use, the square tube body 3 is cut. Specifically, the square tube body 3 is placed on a laser cutting machine tool, which includes a machine tool body. A clamp and a laser cutting head are installed on the inner side of the machine tool body. The clamp holds the square tube body 3, and the laser cutting head performs laser cutting on the part of the square tube body 3 that needs to be bent. After cutting, it is placed on the upper surface of the partition mounting plate 2 and between six guide rollers 5.
[0028] The square tube body 3 is positioned and clamped. Specifically, the part of the square tube body 3 to be bent is aligned with the center of the partition plate 2 to achieve the positioning operation of the square tube body 3. The power is turned on and the two ends of the square tube body 3 are rotated. Specifically, the electric push rod 8 is started, so that the electric push rod 8, under the support of the support base 1, drives the transmission frame 15 to slide horizontally through the transmission angle plate 9. Then, the transmission frame 15 pushes the two swing plates 10 through the two guide wheels 18. At this time, the two swing plates 10 drive the six guide rollers 5 to swing in opposite directions relative to the center of the support partition plate 7. Then, the six guide rollers 5 drive the two ends of the square tube body 3 to rotate and bend. When the two swing plates 10 are in contact with the two sides of the positioning block 16, the square tube body 3 is bent into shape.
[0029] Welding is performed on the bent square tube body 3. Specifically, a welding gun is provided in the middle of the welding positioning seat 4. The welding gun is inserted into the inner side of the welding positioning seat 4 through the middle of the welding positioning seat 4 and the square tube body 3 is welded. This can maintain the rapid and stable forming of the square tube body 3. The forming is carried out by cutting, bending and welding in sequence, which can avoid deformation and cracks in the bent part.
[0030] When resetting the transmission frame 15, the middle part of the reset frame 17 is connected to the positioning block 16 by a spring, so that the two swing plates 10 swing in opposite directions under the support of the spring through the reset frame 17, which facilitates the automatic reset of the guide roller 5 and facilitates repeated bending operations. The roller body 13 in the guide roller 5 is connected to the square tube body 3 by an elastic ring 14, so that when the guide roller 5 drives the square tube body 3 to bend, the roller body 13 can avoid the surface of the square tube body 3 being squeezed and deformed by the elastic ring 14.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A bending and forming device for a metal square tube, comprising a laser cutting machine tool and a support base (1), wherein the laser cutting machine tool comprises a machine tool body, a fixture and a laser cutting head are mounted on the inner side of the machine tool body, the laser cutting head is located directly above the fixture, and the square tube body (3) is mounted on the inner side of the fixture, characterized in that: An electric push rod (8) is fixedly installed on the inner side of the support base (1). A transmission angle plate (9) is fixedly installed on the output end of the electric push rod (8). A transmission frame (15) is installed on the upper end of the transmission angle plate (9). Guide wheels (18) are rotatably connected to both ends of the transmission frame (15). A support partition plate (7) is slidably connected to the outer side of the transmission angle plate (9). A positioning block (16) is fixedly installed on the upper surface of the support partition plate (7). A reset frame (17) is slidably connected to the inner side of the positioning block (16). The reset frame (17) has... Both ends are movably mounted with swing plates (10). The upper end face of the positioning block (16) is fixedly mounted with a partition mounting plate (2). The upper end face of the partition mounting plate (2) is provided with four arc-shaped guide grooves (6). Six guide rollers (5) are movably mounted on the inner side of the four arc-shaped guide grooves (6). A welding positioning seat (4) is mounted on the outside of the six guide rollers (5). A welding gun is movably mounted in the middle of the welding positioning seat (4). The welding gun can be rotated and adjusted in the middle of the welding positioning seat (4) to weld the square tube body (3).
2. The bending and forming device for a metal square tube according to claim 1, characterized in that: The guide roller (5) includes a rotating shaft (11), and a roller body (13) is fixedly installed on the outer side of the upper end of the rotating shaft (11). Limiting rings (12) are installed on both the upper and lower end faces of the roller body (13). An elastic ring (14) is provided on the outer side of the roller body (13). The square tube body (3) can be positioned when clamped by the six guide rollers (5).
3. The bending and forming device for a metal square tube according to claim 2, characterized in that: The partition mounting plate (2) and the support partition plate (7) are both fixedly connected to the support base (1). The middle part of the support partition plate (7) passes through two swing plates (10) and is inserted into the inner side of the middle part of the partition mounting plate (2). The bottom end of the rotating shaft (11) passes through the arc-shaped guide groove (6) and is inserted into the inner side of the swing plate (10). The rotating shaft (11) is rotatably connected to the swing plate (10).
4. The bending and forming device for a metal square tube according to claim 3, characterized in that: The rotating shaft (11) and the two adjacent limiting rings (12) are connected by threads. The roller body (13) and the square tube body (3) are connected by an elastic ring (14). The two swing plates (10) swing back and forth in opposite directions relative to the center of the support partition (7). When the two swing plates (10) swing towards each other, they can bend the square tube body (3).
5. The bending and forming device for a metal square tube according to claim 1, characterized in that: Both ends of the transmission frame (15) are connected to the two swing plates (10) via guide wheels (18), and the guide wheels (18) are in rolling connection with the sides of the swing plates (10).
6. The bending and forming device for a metal square tube according to claim 1, characterized in that: The two ends of the reset frame (17) pass through the positioning block (16) and are in contact with the swing plate (10). The middle part of the reset frame (17) is connected to the positioning block (16) by a spring.