Aluminum pipe bending device

Abstract

The aluminum pipe bending device comprises a base and a supporting frame, a first driving device is arranged on the supporting frame, and the first driving device is connected with a forming assembly. A positioning assembly and a supporting assembly are arranged on the base, the positioning assembly comprises positioning seats, the positioning seats are symmetrically arranged about the center line of the base, and an aluminum pipe is placed on the positioning seats to be supported; the forming assembly comprises a bending die, and the bending die can be driven by a first driving device to move downwards, so that the bending die gradually makes contact with the aluminum pipe, and the aluminum pipe is pressurized to be bent; an adjusting structure is further arranged on the forming assembly, and the bending die is connected with the adjusting structure, so that different bending dies can be obtained; an inner supporting assembly is further arranged and can support the bending die. In the bending process of the aluminum pipe, the supporting assembly makes contact with the aluminum pipe all the time and supports the aluminum pipe, and the better bending effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum tube processing, in particular to an aluminum tube bending device. Background Art

[0002] Aluminum tube is a kind of non-ferrous metal tube, which is widely used in automobile, ship, aerospace, aviation, electrical appliances, agriculture, electromechanical, home furnishing and other industries. It often needs to be bent during daily use, and a bending device is needed at this time.

[0003] The prior art discloses an aluminum tube bending machine with document number CN211515674U, which includes a frame, an upper bending die group and a lower bending die group. The upper bending die group and the lower bending die group are arranged correspondingly up and down. A first driving mechanism is connected to the upper side of the upper bending die group, a limiting mechanism is connected to the lower side of the lower bending die group, and a second driving mechanism is connected to the lower side of the limiting mechanism. The aluminum tube is placed on the lower bending die group, and the first driving mechanism causes the upper bending die group to move downward, thereby bending the aluminum tube. The lower bending die group includes a left rotating plate and a right rotating plate. During the process of bending the aluminum tube by the upper bending die group, the left rotating plate and the right rotating plate rotate and push the limiting structure to move downward. When the limiting structure reaches the limited position, the aluminum tube bending process is completed.

[0004] However, in the above solution, when the aluminum tube requires different bending degrees, the upper bending die set still needs to be replaced, which is troublesome and affects processing efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a bending device which can improve the quality of aluminum tube bending.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: an aluminum tube bending device, including a base and a support frame, the support frame is above the base and a first driving device is arranged on the support frame, and its characteristics are: the first driving device is connected to a forming assembly, a positioning assembly is arranged on the base, the aluminum tube is placed on the positioning assembly, and the first driving device drives the forming assembly to move toward the aluminum tube; the forming assembly includes a connecting plate layer and a movable plate layer, the movable plate layer is located below the connecting plate layer, and two adjustment blocks are arranged on the movable plate layer, a bending mold is connected between the two adjustment blocks, and when the horizontal spacing between the two adjustment blocks changes, the bending curvature of the bending mold is adjusted.

[0007] Furthermore, the connecting plate layer and the movable plate layer are connected via a rotation shaft, and the movable plate layer can rotate relative to the connecting plate layer.

[0008] Furthermore, a threaded hole is provided on the rotating shaft, a rotating rod is screwed into the threaded hole, a connecting claw is connected to the lower end of the rotating rod, and when the rotating rod is screwed, the connecting claw is driven to move vertically, and the connecting claw is against the bending mold.

[0009] Furthermore, a cavity is provided in the movable plate layer, and a through slot is extended downward from the cavity. The through slot penetrates the lower surface of the movable plate layer, and the adjustment block is provided through the through slot, with its upper end located in the cavity.

[0010] Furthermore, a spring is connected to the adjustment block, the other end of the spring is connected to the inner wall of the cavity, and the spring has a restoring force after being stretched.

[0011] Furthermore, the adjustment block is connected with an adjustment bolt, which passes through the movable plate layer horizontally. When the adjustment bolt is screwed, the inner end of the adjustment bolt applies a thrust to the adjustment block.

[0012] Furthermore, a rectangular groove is provided on the base, a sliding plate and a connecting plate are provided in the rectangular groove, the sliding plate can slide in the rectangular groove, and a positioning assembly is provided on the sliding plate.

[0013] Furthermore, the positioning assembly includes a sliding seat and a "U-shaped frame", the sliding seat is fixed on the sliding plate, the "U-shaped frame" is fixed on the upper end of the sliding seat, and the aluminum tube is placed on the "U-shaped frame".

[0014] Furthermore, the connecting plate is located below the sliding plate and forms a support for the sliding plate, and a supporting assembly is provided on the connecting plate.

[0015] Furthermore, the support assembly includes columns that vertically penetrate the connecting plate, the columns are screwed to the connecting plate, and the columns are arranged at equal intervals along the length direction of the connecting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the device is provided with a forming assembly, and the forming assembly is provided with a bending die and an adjustment structure, and the bending degree of the bending die can be adjusted by adjusting the structure, thereby avoiding the need to constantly replace the corresponding die; the internal support assembly can support the bending die from the inside; the support assembly is always in contact with the aluminum tube during the aluminum tube bending process and supports the aluminum tube, so that the aluminum tube can have a better bending effect and can improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the molding component of the utility model;

[0019] Figure 3 This is a schematic diagram of the base structure from a top view of the present invention;

[0020] Figure 4 This is a schematic diagram of the support assembly structure of the utility model;

[0021] Figure 5This is a schematic diagram of the positioning component structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the connection between the column and the ball head of the utility model;

[0023] Among them, 1—base, 2—support frame, 3—support column, 4—first drive device, 5—aluminum tube, 6—connecting plate layer, 7—movable plate layer, 8—bending mold, 9—adjustment block, 10—adjustment bolt, 11—ball, 12—rotating shaft, 13—rotating rod, 14—forming assembly, 15—connecting rod, 16—micro-arc joint, 17—positioning seat, 1701—sliding seat, 1702—U-shaped frame, 1703—anti-slip pad, 18—connecting plate, 19—ball head, 20—column, 21—industrial spring, 22—sliding plate, 23—support assembly, 24—positioning slot, 25—spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] See also Figures 1 to 6 As shown, the utility model is an aluminum tube bending device, comprising a base 1, a support frame 2 connected to the upper side of the base 1, four support columns 3 provided below the base, the support columns 3 supporting the base 1; the support frame 2 is provided in a "T-shaped" frame, a first driving device 4 is provided on the support frame 2, an aluminum tube 5 is placed above the base 1, and the first driving device 4 can bend the aluminum tube 5 to form a shape;

[0028] The first driving device 4 is connected to a forming assembly 14. When the first driving device 4 is working, it can drive the forming assembly 14 to move downward, so that the forming assembly 14 gradually contacts and pressurizes the aluminum tube 5, thereby achieving a bending effect on the aluminum tube 5.

[0029] The forming assembly 14 includes a connecting plate layer 6 and a movable plate layer 7. The horizontal height of the connecting plate layer 6 is higher than that of the movable plate layer 7. The connecting plate layer 6 and the movable plate layer 7 are both set to a rectangular shape, and both the connecting plate layer 6 and the movable plate layer 7 have a certain thickness. The first driving device 4 is directly connected to the connecting plate layer 6. The connecting plate layer 6 and the movable plate layer 7 are connected by a rotating shaft 12. A ball 11 is provided between the connecting plate layer 6 and the movable plate layer 7 so that the movable plate layer 7 can rotate relative to the connecting plate layer 6. A bending die 8 is also provided on the movable plate layer 7. The bending die 8 is set to an arch shape. At the same time, the bending degree of the arch of the bending die 7 can be adjusted, so that different bending radians can be obtained. The movable plate layer 7 is set to a rotating state, which can facilitate the adjustment of the bending die 8.

[0030] Specifically, two adjustment structures are symmetrically provided on the movable plate layer 7, and the bending die 8 is installed between the two adjustment structures. By adjusting the horizontal spacing between the two adjustment structures, the bending state of the bending die 8 can be adjusted; that is, a cavity is provided inside the movable plate layer 7, so that the cross-section of the movable plate layer 7 presents a "return" style, and a through groove is provided from the cavity downward, and the through groove passes through the lower surface of the movable plate layer 7. At the same time, slide grooves are provided on the opposite side walls in the cavity, and the slide grooves extend horizontally; two adjustment blocks 9 are provided on the movable plate layer 7, and the two adjustment blocks 9 are set to the same structure. The upper parts of the two adjustment blocks 9 pass through the through groove and enter the cavity. The upper part of each adjustment block forms a sliding connection with the slide groove, and the adjustment block can slide in the slide groove; at the same time, in order to be able to position the two adjustment blocks 9, two horizontal threaded holes are provided on the movable plate layer 7, and the two horizontal threaded holes are symmetrical It is provided that an adjusting bolt 10 is screwed into each horizontal threaded hole, so that the inner end of the adjusting bolt 10 is located in the cavity and is against the adjusting block. By adjusting the adjusting bolt 10, the distance between the two adjusting blocks 9 can be adjusted to be smaller, and then a spring 25 is connected between the adjusting block 9 and the side wall of the cavity. This spring 25 is parallel to the adjusting bolt 10. When the distance between the two adjusting blocks 9 becomes smaller, the spring 25 is stretched to generate a restoring force, so that the distance between the two adjusting blocks 9 can be increased under the action of the restoring force of the spring 25 by screwing the adjusting bolt 10 in the opposite direction; and a bending die 8 is connected between the two adjusting blocks 9, and the bending die 8 is provided with an arc-shaped piece with a certain curvature, and the two ends of the arc piece are respectively connected to the two adjusting blocks 9, and the arc piece is symmetrical about the center line of the length direction of the movable plate layer; the material of the bending die 8 can be selected from an elastic alloy, such as elastic steel;

[0031] At the same time, considering that the press-bending die 8 has a certain elasticity, an internal support assembly is provided above the press-bending die 8. The internal support assembly always maintains contact with the press-bending die 8, and can support the press-bending die 8 during the press-bending process of the aluminum tube; the internal support assembly includes a rotating shaft 12, a rotating rod 13 and a connecting claw. The rotating rod 13 is screwed on the rotating shaft 12, and the rotating rod 13 can rotate relative to the rotating shaft 12 and move in the vertical direction; the connecting claw is connected to the lower end of the rotating rod 13. The movement of the rotating rod 13 can adjust the distance between the connecting claw and the press-bending die 8, so that the connecting claw can maintain contact with the press-bending die 8 when the press-bending die 8 has different bending degrees, thereby being able to support it;

[0032] Specifically, a vertical through hole is provided on the connecting plate layer 6, and the rotating shaft 12 passes through the vertical through hole. At this time, the lower end of the rotating shaft is located in the cavity. A threaded hole is provided on the rotating shaft 12, and the threaded hole extends from the upper end of the rotating shaft 12 to the lower end. At this time, the threaded hole is coaxial with the rotating shaft 12, and the rotating rod 13 is screwed in through the threaded hole, and its lower end is located in the through groove. The rotating rod 13 will move axially when screwed. At this time, the vertical spacing between its lower end and the press-bending mold changes. The connecting claw is installed at the lower end of the rotating rod 13. The connecting claw consists of a connecting rod 15 and a micro-arc joint 16. Adjusting the rotating rod 13 can adjust the relative position between the micro-arc joint 16 and the press-bending mold 8, so that the micro-arc joint 16 contacts the press-bending mold 8, and the micro-arc joint 16 forms an internal support for the press-bending mold.

[0033] Before bending the aluminum tube 5, it is necessary to position the aluminum tube 5. Considering the ductility of the aluminum tube 5 and the fact that the tube will generate a horizontal thrust under the action of the pressure device during the bending process, thereby causing the aluminum tube to slide relative to the support point, a positioning component is required. The positioning component can support the aluminum tube 5 in the initial state while taking into account the relative sliding of the aluminum tube during the bending process.

[0034] Specifically, the positioning assembly is provided on the base, and the positioning assembly includes a positioning seat 17, which is symmetrically arranged about the center line of the base 1 and can slide horizontally on the base; the aluminum tube 5 is placed on the positioning seat 17, and the two positioning seats 17 form a support for the aluminum tube 5; by adjusting the positional relationship between the two positioning seats 17, the position of the support point can be adjusted, and the aluminum tube 5 can be matched with the bending die 8 to obtain different bending shapes;

[0035] The base 1 is provided with a rectangular groove extending downward from the upper surface of the base, thereby forming a rectangular cavity on the base. Two track grooves are provided on two opposite sides of the rectangular cavity, extending horizontally along the length of the base. Two sliding plates 22 are provided in the rectangular groove, with each end of the sliding plate 22 located in the track groove. The two sliding plates 22 are parallel to each other and can slide in the rectangular groove.

[0036] The positioning seat 17 is arranged on the sliding plate 22. By adjusting the position between the two sliding plates 22, the two positioning seats 17 can be moved toward or away from each other. The positioning seat includes a sliding seat 1701 and a "U-shaped frame" 1702. The sliding seat 1701 is fixed on the sliding plate 22, and the "U-shaped frame 1702" is connected to the upper end of the sliding seat 1701. The aluminum tube 5 is placed on the "U-shaped frame 1701", which forms a support for the aluminum tube 5. An anti-slip pad 1703 is provided on the inner side of the "U-shaped frame 1702". When the anti-slip pad 1703 is placed on the aluminum tube 5, it can prevent the relative sliding of the aluminum tube 5 to a certain extent, which can facilitate the positioning of the aluminum tube 5 in the initial state. During the bending process of the aluminum tube 5, the aluminum tube 5 can slide slowly in the horizontal direction, thereby enabling the aluminum tube 5 to achieve a better bending effect.

[0037] In addition, in order to achieve a better bending effect and a variety of bending shapes for the aluminum tube 5 during the bending process, a support assembly is further provided on the base, which can provide secondary support for the aluminum tube 5; that is, a connecting plate 18 is provided in the rectangular groove, the connecting plate 18 is located below the sliding plate 22, and the connecting plate 18 forms a support for the sliding plate 22, and a support assembly 23 is provided on the connecting plate 18, and the support assembly 23 is evenly distributed along the length direction of the connecting plate 18; at the same time, the support assembly 23 can move in the vertical direction relative to the connecting plate 18, thereby adjusting the position of the support assembly 23 relative to the connecting plate 18;

[0038] Specifically, the support assembly 23 includes a ball head 19 and a column 20; wherein the column 20 is connected to the connecting plate 18, and the columns 20 are arranged along the length direction of the connecting plate, but the spacing between two adjacent columns 20 is equal, and a threaded hole is provided on the connecting plate 18, and the threaded hole vertically penetrates the connecting plate 18, and the outer surface of the column 20 is provided with a thread, and the column 20 is assembled with the connecting plate through the threaded hole, so that the column 20 can move in the vertical direction, and the column 20 and the connecting plate 18 are positioned by a nut; An industrial spring 21 is provided between the head 19 and the column 20, and the ball head 19 and the column 20 are connected by the industrial spring 21. When positioning the aluminum tube 5, the relative position between the support assembly 23 and the aluminum tube 5 is adjusted to determine the support point. During the bending process of the aluminum tube 5, the ball head 19 will always maintain contact with the aluminum tube 5. Under the action of the industrial spring 21, the ball head 19 always supports the aluminum tube 5, which can slow down the bending speed of the aluminum tube 5 to a certain extent, thereby achieving a better bending effect.

[0039] At the same time, in order to position the sliding plate 22, a positioning groove 24 is provided on the upper surface of the base 1, and the positioning groove is connected to the track groove. At this time, a bolt assembly is provided at the end of the sliding plate 22, and the bolt assembly passes through the positioning groove 24, and the sliding plate 22 can be positioned by the bolt assembly.

[0040] In addition, the first driving device 4 mentioned in this embodiment is a common device capable of providing power, such as a hydraulic device, an electric push rod, etc.

[0041] When the present device is used, the aluminum tube 5 can be bent by the forming assembly. At the same time, different bending dies 8 can be obtained by adjusting the bending degree of the bending die 8, and the bending uniformity of the bending die 8 can be checked by setting the internal support assembly; the aluminum tube 5 is placed on the positioning seat 17, and the positioning seat supports the aluminum tube 5; the support assembly 23 provided on the base 1 can always support the aluminum tube 5 during the bending process of the aluminum tube 5, so that the aluminum tube 5 can obtain a better bending effect.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. An aluminum tube bending device, comprising a base and a support frame, wherein the support frame is above the base and a first drive device is provided on the support frame, characterized in that: The first driving device is connected to the forming assembly, and a positioning assembly is provided on the base. The aluminum tube is placed on the positioning assembly, and the first driving device drives the forming assembly to move toward the aluminum tube; The forming assembly includes a connecting plate layer and a movable plate layer. The movable plate layer is located below the connecting plate layer. Two adjustment blocks are provided on the movable plate layer. A bending mold is connected between the two adjustment blocks. When the horizontal spacing between the two adjustment blocks changes, the bending curvature of the bending mold is adjusted.

2. The aluminum tube bending device according to claim 1, characterized in that: The connecting plate layer and the movable plate layer are connected via a rotating shaft, and the movable plate layer can rotate relative to the connecting plate layer.

3. The aluminum tube bending device according to claim 2, characterized in that: The rotating shaft is provided with a threaded hole, a rotating rod is screwed into the threaded hole, and a connecting claw is connected to the lower end of the rotating rod. When the rotating rod is screwed, the connecting claw is driven to move vertically, and the connecting claw is against the bending mold.

4. The aluminum tube bending device according to claim 1, characterized in that: A cavity is provided in the movable plate layer, and a through slot is extended downward from the cavity. The through slot penetrates the lower surface of the movable plate layer, and the adjustment block is provided through the through slot, with its upper end located in the cavity.

5. The aluminum tube bending device according to claim 4, characterized in that: The adjusting block is connected with a spring, the other end of the spring is connected with the inner wall of the cavity, and the spring has a restoring force after being stretched.

6. The aluminum tube bending device according to claim 5, characterized in that: The adjusting block is connected with an adjusting bolt, which passes through the movable plate layer horizontally. When the adjusting bolt is screwed, the inner end of the adjusting bolt applies a thrust to the adjusting block.

7. The aluminum tube bending device according to claim 1, characterized in that: A rectangular groove is further provided on the base, a sliding plate and a connecting plate are provided in the rectangular groove, the sliding plate can slide in the rectangular groove, and a positioning component is provided on the sliding plate.

8. The aluminum tube bending device according to claim 7, characterized in that: The positioning assembly includes a sliding seat and a "U-shaped frame". The sliding seat is fixed on the sliding plate, and the "U-shaped frame" is fixed on the upper end of the sliding seat. The aluminum tube is placed on the "U-shaped frame".

9. The aluminum tube bending device according to claim 7, characterized in that: The connecting plate is located below the sliding plate and forms a support for the sliding plate. A supporting assembly is provided on the connecting plate.

10. The aluminum tube bending device according to claim 9, characterized in that: The support assembly includes columns that vertically penetrate the connecting plate. The columns are screwed to the connecting plate, and the columns are arranged at equal intervals along the length direction of the connecting plate.

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