90-degree flanging machine for metal pipe

Abstract

The utility model discloses a 90-degree flanging machine for a metal pipe, and belongs to the technical field of flanging machines. A 90-degree flanging machine for a metal pipe comprises a device body, the device body comprises a frame body, a first top die base and a film pressing piece, the first top die base and the film pressing piece are used for being arranged on the frame body, and the first top die base and the film pressing piece are used for flanging the two ends of the metal pipe; an edge pulling area is formed between the first top mold base and the mold pressing piece; a support is arranged at the flanging area, an upper extrusion piece and a lower extrusion piece which are symmetrically arranged are arranged on the support in the height direction in a sliding mode, and connecting pieces are detachably arranged between the upper extrusion piece and the film pressing piece and between the lower extrusion piece and the film pressing piece. Compared with the prior art, a set of linkage pure mechanical structure is used for control, only one large electric cylinder is used for driving, the whole process of positioning, pressing, 90-degree flanging and the like of the metal pipe is completed, meanwhile, the device is simple in structure, electrical logic control is reduced while the flanging precision requirement is met, debugging, use and maintenance are convenient, and the cost is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of beveling machines, in particular to a 90-degree beveling machine for metal pipes. Background Art

[0002] In the metal processing industry, especially in the field of pipe processing, bending or folding metal pipes into various shapes and angles is a common process requirement. In the metal pipe production process, metal pipes are often required to be folded.

[0003] The existing 90° metal tube bending machines on the market usually have a bending assembly and a clamping assembly. During actual use, the two ends of the metal tube are usually bent at a certain angle, such as 45°, and then the side wall of the metal tube is positioned by the clamping assembly, and then the metal tube is squeezed by the bending assembly to achieve 90° bending of the metal tube. However, the bending assembly and the clamping assembly in the above-mentioned are mostly set separately, and a driving source needs to be provided for the bending assembly and the clamping assembly respectively, which not only increases the complexity and manufacturing cost of the equipment, but also leads to cumbersomeness and inconvenience during operation. Utility Model Content

[0004] The utility model provides a 90-degree beveling machine for a metal pipe, which can overcome certain defects of the prior art.

[0005] According to the utility model, a 90° bend machine for metal tubes comprises a device body, which comprises a frame, a first top die seat and a film pressing member arranged at the frame, wherein the first top die seat and the film pressing member are used to bend the two ends of the metal tube;

[0006] A flange area is formed between the first top mold base and the die pressing member;

[0007] A bracket is provided in the edge bending area, and the bracket slides along the height direction and is provided with symmetrically arranged upper extrusion parts and lower extrusion parts. The upper extrusion parts, lower extrusion parts and the film pressing parts are detachable and provided with connecting parts. The connecting parts are used to enable the upper extrusion parts and lower extrusion parts to press the metal tube up and down along the height direction of the bracket, and cooperate with the first top mold base and the film pressing part to perform 90° edge bending.

[0008] Preferably, the film pressing part includes a connecting seat and a second top mold seat respectively located on both sides of the first top mold seat, and two groups of guide rod groups are symmetrically arranged between the connecting seat and the second top mold seat and pass through the first top mold seat. The upper extrusion part and the lower extrusion part are respectively arranged at the two groups of guide rod groups, and the upper extrusion part and the lower extrusion part have the same structure.

[0009] Through the above structure, the connecting seat and the second top mold seat are respectively located on both sides of the first top mold seat, forming a stable support structure, which not only enhances the overall stability of the die-cutting part, but also enables the metal tube to obtain more uniform and stable support during the edge-folding process, thereby improving the accuracy and consistency of the edge-folding.

[0010] Preferably, a rotating frame is provided between the first top mold base and the connecting base, and the rotating frame is used to enable the connecting base and the first top mold base to move toward or away from each other.

[0011] The above structure helps the metal tube to be more evenly stressed between the first top die seat and the second top die seat, thereby achieving a more uniform and consistent flanging effect and reducing the flanging error caused by uneven stress on the metal tube.

[0012] Preferably, the bracket has two connecting plates, and connecting rods for mounting the upper extrusion member and the lower extrusion member are provided at both ends of corresponding sides of the two connecting plates.

[0013] Through the above structure, the connecting rod set on the connecting plate provides a precise installation position and movement trajectory for the upper extrusion part and the lower extrusion part, ensuring that the upper extrusion part and the lower extrusion part can maintain consistent parallelism and verticality when moving up and down along the height direction of the bracket, thereby avoiding the problem of inaccurate edge bending or deformation of the metal tube due to offset or tilt.

[0014] Preferably, the upper extrusion member includes a die seat slidably arranged at the connecting rod, the die seat is downwardly formed with a convex portion, and a plurality of arc grooves matching the outer wall of the metal tube are formed at the corresponding positions of the convex portion and the metal tube.

[0015] Through the above structure, multiple arc-shaped grooves formed at the convex part that match the outer wall of the metal tube ensure that the upper extrusion part can fit tightly against the outer wall of the metal tube when pressing the metal tube. This not only helps to evenly distribute the pressing force and prevent local deformation or damage of the metal tube during the flanging process, but also improves the accuracy of the flanging.

[0016] Preferably, the connecting member includes a fixing plate detachably provided at the side wall of the upper extrusion member and a fixing seat detachably provided at the guide rod group, an extension portion is provided at the top of the fixing seat, a rotating shaft is provided at the side wall corresponding to the extension portion and the fixing plate, a bearing is rotatably provided at the rotating shaft, and a guide groove for sliding of the bearing is formed at the side wall of the fixing plate.

[0017] Through the above structure, the cooperation between the guide groove and the bearing provides a precise sliding path for the upper extrusion part, ensuring that the upper extrusion part can maintain a stable motion trajectory when moving up and down along the height direction of the bracket. At the same time, it is linked to the guide rod group through the connecting part, without the need for an additional drive source, reducing electrical logic control, and making debugging, use and maintenance convenient, with relatively low cost.

[0018] Preferably, the guide groove is inclined upward toward the first top mold base at one end along the height direction of the bracket, and the end of the guide groove inclined upward toward the first top mold base is connected to a transversely arranged extension groove.

[0019] With the above structure, after the upper extrusion piece and the lower extrusion piece correspondingly connected to the fixing plate press the two sides of the outer wall of the metal tube, the bearing can also move along the extension groove direction to avoid extrusion between the bearing and the guide groove.

[0020] Preferably, the guide rod group includes two guide rods symmetrically arranged along the bracket, and the connecting members are respectively arranged at the guide rods.

[0021] Through the above structure, the guide rods on both sides of the bracket are provided with connecting pieces, thereby improving the stability of the connecting pieces in driving the upper extrusion piece and the lower extrusion piece.

[0022] Preferably, an electric cylinder is provided on the frame, and the electric cylinder is used to drive the first top mold base to move.

[0023] Through the above structure, the electric cylinder can maintain stable output force and speed during the driving process, which enables the first top mold base to remain stable and accurate during movement, helps to reduce processing errors and equipment damage caused by vibration or impact, and improves the reliability and service life of the equipment.

[0024] The beneficial effects of the utility model are as follows:

[0025] Compared with the existing technology, the present invention utilizes a set of linked pure mechanical structure control and only uses a large electric cylinder as a drive to complete the entire process of positioning, pressing, 90° bending of the metal tube. At the same time, the structure of the device is streamlined, which meets the bending accuracy requirements while reducing electrical logic control. It is easy to debug, use and maintain, and the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a metal tube 90° bending machine;

[0027] Figure 2 This is a schematic diagram of the overall side structure of a metal tube 90° bending machine;

[0028] Figure 3 This is a schematic diagram of the structure of the upper extrusion part and the lower extrusion part of a metal tube 90° bending machine;

[0029] Figure 4 This is a schematic diagram of the connecting parts structure of a metal tube 90° bending machine. DETAILED DESCRIPTION

[0030] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0031] Example 1

[0032] See also Figure 1 This embodiment provides a 90° bend machine for metal tubes, comprising a device body 100 , the device body 100 comprising a frame 110 , a first top die holder 120 and a die pressing member 130 for being arranged on the frame 110 , the first top die holder 120 and the die pressing member 130 being used to bend both ends of the metal tube;

[0033] A flange area is formed between the first top mold base 120 and the die pressing member 130;

[0034] A bracket 150 is provided in the edge bending area, and the bracket 150 is provided with symmetrically arranged upper extrusion parts and lower extrusion parts sliding along the height direction. The upper extrusion parts, lower extrusion parts and the film pressing part 130 are detachably provided with connecting parts, which are used to enable the upper extrusion parts and lower extrusion parts to press the metal tube up and down along the height direction of the bracket 150, and cooperate with the first top mold base 120 and the film pressing part 130 to perform 90° edge bending.

[0035] Wherein, 90° pressing dies are provided on opposite sides of the first top mold base 120 and the film pressing member 130 .

[0036] When this embodiment is in use, the electric cylinder 160 drives the first top die seat 120 and the second top die seat 220 through the rotating frame to press the metal tube inward, and at the same time, the guide rod drives the bearing 450 on the fixed seat 430 to move in the guide groove 420, so that the upper extrusion piece connected to the fixed plate 410 presses the metal tube downward accurately and stably, and the electric cylinder 160 continues to push the first top die seat 120 and the 90° die to move inward. Under the pressure of the 90° die and the upper extrusion piece and the lower extrusion piece, the metal tube is further bend from 45° to 90°. Compared with the prior art, the present invention utilizes a set of linked pure mechanical structure control, and only uses a large electric cylinder as a drive to complete the entire process of positioning, pressing, 90° bend of the metal tube. At the same time, the structure of the device is streamlined, which meets the bend accuracy requirements while reducing electrical logic control, and is easy to debug, use and maintain, with relatively low cost.

[0037] In this embodiment, the film pressing part 130 includes a connecting seat 210 and a second top mold seat 220 respectively located on both sides of the first top mold seat 120. Two groups of guide rod groups 230 that pass through the first top mold seat 120 are symmetrically arranged between the connecting seat 210 and the second top mold seat 220. The upper extrusion part and the lower extrusion part are respectively arranged at the two groups of guide rod groups 230, and the upper extrusion part and the lower extrusion part have the same structure.

[0038] Through the above structure, the connecting seat 210 and the second top mold seat 220 are respectively located on both sides of the first top mold seat 120, forming a stable support structure, which not only enhances the overall stability of the die pressing part 130, but also enables the metal tube to obtain more uniform and stable support during the edge bending process, thereby improving the accuracy and consistency of the edge bending.

[0039] In this embodiment, a rotating frame 140 is provided between the first top mold base 120 and the connecting base 210 . The rotating frame 140 is used to enable the connecting base 210 and the first top mold base 120 to move toward or away from each other.

[0040] The above structure helps the metal tube to be more evenly stressed between the first top die holder 120 and the second top die holder 220, thereby achieving a more uniform and consistent flanging effect and reducing flanging errors caused by uneven stress on the metal tube.

[0041] In this embodiment, the bracket 150 has two connecting plates 310 , and connecting rods 320 for mounting the upper extrusion member and the lower extrusion member are provided at both ends of corresponding sides of the two connecting plates 310 .

[0042] Through the above structure, the connecting rod 320 set on the connecting plate 310 provides a precise installation position and movement trajectory for the upper extrusion part and the lower extrusion part, ensuring that the upper extrusion part and the lower extrusion part can maintain consistent parallelism and verticality when moving up and down along the height direction of the bracket 150, thereby avoiding the problem of inaccurate edge bending or deformation of the metal tube due to offset or tilt.

[0043] In this embodiment, the upper extrusion member includes a die seat 330 slidably arranged at the connecting rod 320. The die seat 330 has a convex portion formed downwardly, and a plurality of arc grooves 340 matching the outer wall of the metal tube are formed at the corresponding positions of the convex portion and the metal tube.

[0044] Through the above structure, multiple arc grooves 340 formed at the convex part and matching the outer wall of the metal tube ensure that the upper extrusion part can fit tightly against the outer wall of the metal tube when pressing the metal tube. This not only helps to evenly distribute the pressing force and prevent local deformation or damage of the metal tube during the flanging process, but also improves the accuracy of the flanging.

[0045] In this embodiment, the connecting part includes a fixing plate 410 that is detachably provided on the side wall of the upper extrusion part and a fixing seat 430 that is detachably provided on the guide rod group 230. An extension portion 440 is provided at the top of the fixing seat 430. A rotating shaft is provided at the side wall corresponding to the extension portion 440 and the fixing plate 410. A bearing 450 is rotatably provided at the rotating shaft. A guide groove 420 for the bearing 450 to slide is formed on the side wall of the fixing plate 410.

[0046] Through the above structure, the cooperation between the guide groove 420 and the bearing 450 provides a precise sliding path for the upper extrusion part, ensuring that the upper extrusion part can maintain a stable motion trajectory when moving up and down along the height direction of the bracket 150. At the same time, it is linked to the guide rod group 230 through the connecting part, without the need to set up an additional drive source, reducing electrical logic control, and making debugging, use and maintenance convenient, with relatively low cost.

[0047] Specifically, when the first top mold base 120 and the second top mold base 220 squeeze the two ends of the metal tube inward, the guide rod group 230 drives the fixed seat 430 at the guide rod group 230 to move inward, and the bearing 450 at the fixed seat 430 presses the fixed plate 410 and the upper extrusion piece and the lower extrusion piece corresponding to the fixed plate 410 along the guide groove 420 to the two sides of the outer wall of the metal tube. Conversely, when the first top mold base 120 and the second top mold base 220 move outward, the guide rod group 230 drives the fixed seat 430 at the guide rod group 230 to move outward, and the bearing 450 at the fixed seat 430 moves the fixed plate 410 and the upper extrusion piece and the lower extrusion piece corresponding to the fixed plate 410 along the guide groove 420 to the opposite direction of the metal tube, thereby releasing the pressure on both sides of the outer wall of the metal tube.

[0048] In this embodiment, one end of the guide groove 420 is inclined upward toward the first top mold base 120 along the height direction of the bracket 150 , and the end of the guide groove 420 inclined upward toward the first top mold base 120 is connected to a transversely arranged extension groove.

[0049] Through the above structure, when the upper extrusion piece and the lower extrusion piece correspondingly connected to the fixing plate 410 press the two sides of the outer wall of the metal tube, the bearing 450 can also move along the extension groove direction to avoid extrusion between the bearing 450 and the guide groove 420.

[0050] In this embodiment, the guide rod assembly 230 includes two guide rods symmetrically arranged along the bracket 150, and the connecting members are respectively arranged at the guide rods.

[0051] Through the above structure, the guide rods on both sides of the bracket 150 are provided with connecting pieces, thereby improving the stability of the connecting pieces in driving the upper extrusion piece and the lower extrusion piece.

[0052] In this embodiment, an electric cylinder 160 is provided at the frame 110 , and the electric cylinder 160 is used to drive the first top mold base 120 to move.

[0053] A reducer is provided at the output end of the electric cylinder 160 .

[0054] Through the above structure, the electric cylinder 160 can maintain stable output force and speed during the driving process, which enables the first top mold base 120 to remain stable and accurate during the movement, helps to reduce processing errors and equipment damage caused by vibration or impact, and improves the reliability and service life of the equipment.

[0055] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0056] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown are only part of the embodiments of the present invention, and the actual structure is not limited to them. Therefore, if a person skilled in the art is inspired by the above and designs a structure and embodiment similar to the technical solution without creatively designing it without departing from the inventive purpose of the present invention, it shall fall within the scope of protection of the present invention.

Claims

1. A 90° beveling machine for metal tubes, characterized in that: The device comprises a main body (100), the main body (100) comprising a frame (110), a first top die seat (120) and a die pressing member (130) arranged on the frame (110), the first top die seat (120) and the die pressing member (130) being used for bending the two ends of the metal pipe; A flange area is formed between the first top mold base (120) and the die pressing member (130); A bracket (150) is provided in the edge bending area. The bracket (150) is provided with a symmetrical upper extrusion part and a lower extrusion part that slide along the height direction. A detachable connecting piece is provided between the upper extrusion part and the lower extrusion part and the die pressing part (130). The connecting piece is used to enable the upper extrusion part and the lower extrusion part to press the metal tube up and down along the height direction of the bracket (150), and cooperate with the first top mold base (120) and the die pressing part (130) to perform 90° edge bending.

2. The metal tube 90° beveling machine according to claim 1, characterized in that: The die-forming member (130) includes a connecting seat (210) and a second top die seat (220) respectively located on both sides of the first top die seat (120); two groups of guide rod groups (230) passing through the first top die seat (120) are symmetrically arranged between the connecting seat (210) and the second top die seat (220); the upper extrusion member and the lower extrusion member are respectively arranged at the two groups of guide rod groups (230); and the upper extrusion member and the lower extrusion member have the same structure.

3. The 90° beveling machine for metal tubes according to claim 2, characterized in that: A rotating frame (140) is provided between the first top mold base (120) and the connecting base (210), and the rotating frame (140) is used to enable the connecting base (210) and the first top mold base (120) to move toward or away from each other.

4. The metal tube 90° beveling machine according to claim 1, characterized in that: The bracket (150) has two connecting plates (310), and connecting rods (320) for mounting the upper extrusion member and the lower extrusion member are provided at both ends of corresponding sides of the two connecting plates (310).

5. The metal tube 90° beveling machine according to claim 2, characterized in that: The upper extrusion member includes a die seat (330) slidably arranged at the connecting rod (320), and the die seat (330) is formed with a convex portion downwardly, and a plurality of arc grooves (340) matching the outer wall of the metal tube are formed at the corresponding positions of the convex portion and the metal tube.

6. The metal tube 90° beveling machine according to claim 1, characterized in that: The connecting member comprises a fixing plate (410) detachably arranged on the side wall of the upper extrusion member and a fixing seat (430) detachably arranged on the guide rod group (230); an extension portion (440) is provided at the top of the fixing seat (430); a rotating shaft is provided at the side wall corresponding to the extension portion (440) and the fixing plate (410); a bearing (450) is rotatably provided at the rotating shaft; and a guide groove (420) for the bearing (450) to slide is formed on the side wall of the fixing plate (410).

7. The metal tube 90° beveling machine according to claim 6, characterized in that: The guide groove (420) is inclined upward toward the first top mold base (120) at one end along the height direction of the bracket (150), and the end of the guide groove (420) inclined upward toward the first top mold base (120) is connected to a transversely arranged extension groove.

8. The metal tube 90° beveling machine according to claim 2, characterized in that: The guide rod group (230) includes two guide rods symmetrically arranged along the bracket (150), and the connecting members are respectively arranged at the guide rods.

9. The metal tube 90° beveling machine according to claim 1, characterized in that: An electric cylinder (160) is provided at the frame (110), and the electric cylinder (160) is used to drive the first top mold base (120) to move.

Images