Bending die assembly of pipe fitting bending machine

Abstract

The utility model discloses a pipe fitting bending machine bending die assembly which comprises a base, the upper end of the base is rotationally connected with a bending wheel through a rotating shaft, a fixing block is installed at the upper end of the bending wheel, a telescopic handle is installed at one end of the fixing block, a clamping wheel is movably installed at the other end of the fixing block, and a movable plate is movably installed on the base on one side of the bending wheel. The upper end of the moving plate is rotatably connected with a limiting wheel through a rotating shaft, a measuring assembly is installed at the upper end of the base between the limiting wheel and the bending wheel, angle scales are distributed at the upper end of the base below the bending wheel, an L-shaped plate is installed at the bottom end of the bending wheel, and a limiting block is movably installed outside the angle scales. By arranging the measuring assembly, when the pipe fitting is placed, one end of the pipe fitting is used for pushing the push plate in the measuring assembly, the push plate drives the measuring rod to move, and the length scales on the measuring rod are checked, so that the specified length position of the pipe fitting can be conveniently bent, and a plurality of bent pipe fittings can be conveniently kept consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a bending die assembly for a pipe bending machine. Background Art

[0002] Pipe bending machine is a common metal processing equipment, mainly used to bend metal pipes into desired shapes.

[0003] At present, when the existing manual pipe bending machines perform bending operations on pipes, the bending position and bending angle of the pipes are usually bent based on personal experience, which will lead to certain differences in the bending position and bending angle of the pipes after bending, resulting in the production of defective products and a certain degree of resource waste. Based on this, a pipe bending machine bending die assembly is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a bending die assembly for a pipe bending machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending die assembly of a pipe bending machine, comprising a base, the upper end of the base is rotatably connected to a bending wheel via a rotating shaft, a fixed block is installed on the upper end of the bending wheel, a retractable handle is installed at one end of the fixed block, and a clamping wheel is movably installed at the other end of the fixed block, a movable plate is movably installed on the base on one side of the bending wheel, the upper end of the movable plate is rotatably connected to a limiting wheel via a rotating shaft, a measuring assembly is installed on the upper end of the base between the limiting wheel and the bending wheel, an angle scale is arranged on the upper end of the base below the bending wheel, an L-shaped plate is installed at the bottom end of the bending wheel, and a limiting block is movably installed outside the angle scale.

[0006] Preferably, the retractable handle includes a fixing rod, an adjusting tube and a fixing bolt; a fixing rod is installed at one end of the fixing block; an adjusting tube is sleeved at one end of the fixing rod; a fixing bolt is installed on the surface of the adjusting tube; one end of the fixing bolt extends to the surface of the fixing rod.

[0007] Preferably, a connecting frame is installed at the other end of the fixed block, one end of the connecting frame is threadedly connected to a screw rod through a screw hole, one end of the screw rod is rotatably connected to a movable frame, the clamping wheel is rotatably connected inside the movable frame, and limiting plates are installed at the top ends of the connecting frames at the front and rear of the movable frame, and a handle rod is installed at the other end of the screw rod.

[0008] Preferably, the measuring assembly includes a mounting block, a measuring rod and a push plate. The mounting block is installed on the upper end of the base between the limiting wheel and the bending wheel. The measuring rod is movably installed on one end of the mounting block through a sliding groove. The upper end surface of the measuring rod is provided with a length scale. One end of the measuring rod is rotatably connected to the push plate through a rotating shaft.

[0009] Preferably, an installation groove is arranged on the upper end of the base on one side of the bending wheel, two guide rods are installed inside the installation groove, the movable plate is slidably installed on the surface of the two guide rods, one end of the base is threadedly connected with a screw rod 2 through a screw hole, one end of the screw rod 2 is rotatably connected to the movable plate, and the other end of the screw rod 2 is installed with a handle 2.

[0010] Preferably, an annular plate is installed on the upper end of the base outside the angle scale, the limit block is installed inside the annular plate through a sliding groove, and a second fixing bolt is installed on the upper end of the limit block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The bending die assembly of the pipe bending machine is provided with a measuring assembly. When the pipe is placed, one end of the pipe is used to push the push plate in the measuring assembly. The push plate drives the measuring rod to move. The length scale on the measuring rod is checked to facilitate bending the pipe at the specified length position and to make multiple bent pipes consistent.

[0013] 2. The bending die assembly of the pipe bending machine is used with an L-shaped plate and a limit block by setting an angle scale on the bottom plate. After the bending wheel rotates a certain angle, the L-shaped plate on the bending wheel will come into contact with the limit block to limit the rotation angle of the bending wheel, so as to make it easier for multiple pipes to maintain the same bending angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a rear structural diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0017] In the figure: 1. base; 2. bending wheel; 3. fixing block; 5. clamping wheel; 6. moving plate; 7. limiting wheel; 9. angle scale; 10. L-shaped plate; 11. limiting block; 12. connecting frame; 13. screw rod 1; 14. limiting plate; 15. mounting groove; 16. annular plate; 17. fixing bolt 2; 18. guide rod; 19. screw rod 2; 20. handle 2; 21. handle 1; 22. length scale; 23. moving frame; 401. fixing rod; 402. adjusting tube; 403. fixing bolt 1; 801. mounting block; 802. measuring rod; 803. push plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figures 1 to 3As shown, the bending die assembly of the pipe bending machine in this embodiment includes a base 1, the upper end of the base 1 is rotatably connected to a bending wheel 2 through a rotating shaft, a fixed block 3 is installed on the upper end of the bending wheel 2, and a retractable handle is installed at one end of the fixed block 3. The length of the handle can be adjusted to effectively reduce the thrust required when the bending wheel 2 rotates, and a clamping wheel 5 is movably installed at the other end of the fixed block 3. A movable plate 6 is movably installed on the base 1 on one side of the bending wheel 2, and the upper end of the movable plate 6 is rotatably connected to a limiting wheel 7 through a rotating shaft. The bending of the pipe is achieved by the coordinated use of the bending wheel 2, the clamping wheel 5 and the limiting wheel 7. The bending principle of the bending wheel 2, the clamping wheel 5 and the limiting wheel 7 is a known prior art. The measuring assembly is installed on the upper end of the base 1 between the limiting wheel 7 and the bending wheel 2, and the measuring assembly is used to measure the bending position of the pipe fitting, so as to realize the bending operation at the specified length of the pipe fitting. The upper end of the base 1 below the bending wheel 2 is provided with an angle scale 9, and an L-shaped plate 10 is installed on the bottom end of the bending wheel 2. When the bending wheel 2 rotates, the L-shaped plate 10 is driven to move, and the bending angle is checked by checking the moving distance of the L-shaped plate 10 on the angle scale 9. A limiting block 11 is movably installed outside the angle scale 9, and the limiting block 11 is used to control the rotation angle of the L-shaped plate 10, so as to limit the bending angle of the pipe fitting.

[0022] Specifically, the retractable handle includes a fixing rod 401, an adjusting tube 402 and a fixing bolt 403. The fixing rod 401 is installed at one end of the fixing block 3, the adjusting tube 402 is sleeved at one end of the fixing rod 401, a fixing bolt 403 is installed on the surface of the adjusting tube 402, and one end of the fixing bolt 403 extends to the surface of the fixing rod 401. By adjusting the combined length of the fixing rod 401 and the adjusting tube 402 and fixing the combined length of the fixing rod 401 and the adjusting tube 402 with the fixing bolt 403, the length of the retractable handle can be adjusted according to actual use.

[0023] Furthermore, a connecting frame 12 is installed at the other end of the fixed block 3, and a screw 13 is threadedly connected to one end of the connecting frame 12 through a screw hole, and a movable frame 23 is rotatably connected to one end of the screw 13, and the clamping wheel 5 is rotatably connected inside the movable frame 23, and a limiting plate 14 is installed at the top of the inner part of the connecting frame 12 in front and behind the movable frame 23, and a handle 21 is installed at the other end of the screw 13, and the screw 13 is driven to rotate by rotating the handle 21, and the screw 13 drives the clamping wheel 5 on the movable frame 23 to move, so as to facilitate the adjustment of the distance between the clamping wheel 5 and the bending wheel 2, and the limiting plate 14 is used to keep the movable frame 23 moving in a straight line.

[0024] Furthermore, the measuring component includes a mounting block 801, a measuring rod 802 and a push plate 803. The mounting block 801 is installed on the upper end of the base 1 between the limiting wheel 7 and the bending wheel 2. The measuring rod 802 is movably installed on one end of the mounting block 801 through a sliding groove. The upper end surface of the measuring rod 802 is provided with a length scale 22. One end of the measuring rod 802 is rotatably connected to the push plate 803 through a rotating shaft. The push plate 803 is moved by using one end of the pipe fitting, and the push plate 803 drives the measuring rod 802 to move. The length scale 22 on the measuring rod 802 is checked to facilitate bending the pipe fitting at a specified length position. The rotation setting of the push plate 803 will not affect the movement of one end of the pipe fitting when bending.

[0025] Furthermore, a mounting groove 15 is arranged on the upper end of the base 1 on one side of the bending wheel 2, two guide rods 18 are installed inside the mounting groove 15, and the movable plate 6 is slidably installed on the surface of the two guide rods 18, and a screw rod 2 19 is threadedly connected to one end of the base 1 through a screw hole, and one end of the screw rod 2 19 is rotatably connected to the movable plate 6, and a handle 20 is installed on the other end of the screw rod 2 19, and the screw rod 2 19 is driven to rotate by rotating the handle 20, and the screw rod 2 19 drives the movable plate 6 to move on the surface of the guide rod 18. It is convenient to adjust the position of the limit wheel 7 on the movable plate 6.

[0026] Furthermore, an annular plate 16 is installed on the upper end of the base 1 outside the angle scale 9, and the limit block 11 is installed inside the annular plate 16 through a sliding groove. A fixing bolt 17 is installed on the upper end of the limit block 11. The fixing bolt 17 is used to fix the limit block 11. The limit block 11 is convenient for blocking the L-shaped plate 10 under the bending wheel 2 after bending at a certain angle, so as to facilitate bending the pipe fitting at a certain angle.

[0027] The method of using this embodiment is as follows: when bending a pipe fitting, the base 1 is installed on the bending machine, and the handle 1 21 and the handle 2 20 are respectively turned according to the diameter of the pipe fitting to be bent, and the clamping wheel 5 and the limit wheel 7 are respectively adjusted to appropriate positions, and then the push plate 803 is pushed by one end of the pipe fitting, and the push plate 803 drives the measuring rod 802 to move, and the pipe fitting is conveniently bent at the specified position by checking the scale of the length scale 22 on the measuring rod 802, and the limit block 11 is slid to make the limit block 11 move. The block 11 is located at a suitable angle position on the annular plate 16 to determine the bending angle of the pipe fitting. The bending wheel 2 is driven to rotate by using the retractable handle. The bending of the pipe fitting is achieved through the cooperation of the bending wheel 2, the clamping wheel 5 and the limiting wheel 7. During this process, the bending wheel 2 drives the L-shaped plate 10 to rotate. When the L-shaped plate 10 contacts the limiting block 11, the bending of the pipe fitting to a specified length and a specified angle is completed, which is convenient for keeping multiple pipe fittings consistent. After the bending is completed, the bent pipe fitting can be removed.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bending die assembly for a pipe bending machine, comprising a base (1), characterized in that: The upper end of the base (1) is rotatably connected to a bending wheel (2) via a rotating shaft, a fixed block (3) is installed on the upper end of the bending wheel (2), a retractable handle is installed at one end of the fixed block (3), and a clamping wheel (5) is movably installed at the other end of the fixed block (3), a movable plate (6) is movably installed on the base (1) on one side of the bending wheel (2), the upper end of the movable plate (6) is rotatably connected to a limiting wheel (7) via a rotating shaft, a measuring component is installed on the upper end of the base (1) between the limiting wheel (7) and the bending wheel (2), an angle scale (9) is arranged on the upper end of the base (1) below the bending wheel (2), an L-shaped plate (10) is installed at the bottom end of the bending wheel (2), and a limiting block (11) is movably installed outside the angle scale (9).

2. The bending die assembly of the pipe bending machine according to claim 1, characterized in that: The retractable handle comprises a fixing rod (401), an adjusting tube (402) and a fixing bolt (403); the fixing rod (401) is mounted on one end of the fixing block (3); the adjusting tube (402) is sleeved on one end of the fixing rod (401); a fixing bolt (403) is mounted on the surface of the adjusting tube (402); one end of the fixing bolt (403) extends to the surface of the fixing rod (401).

3. The bending die assembly of the pipe bending machine according to claim 2, characterized in that: A connecting frame (12) is installed at the other end of the fixed block (3), one end of the connecting frame (12) is threadedly connected to a screw rod (13) through a screw hole, one end of the screw rod (13) is rotatably connected to a moving frame (23), the clamping wheel (5) is rotatably connected inside the moving frame (23), the top end of the connecting frame (12) in front and behind the moving frame (23) is both installed with a limit plate (14), and the other end of the screw rod (13) is installed with a handle (21).

4. The bending die assembly of the pipe bending machine according to claim 1, characterized in that: The measuring assembly comprises a mounting block (801), a measuring rod (802) and a push plate (803); the mounting block (801) is mounted on the upper end of the base (1) between the limiting wheel (7) and the bending wheel (2); one end of the mounting block (801) is movably mounted with the measuring rod (802) via a sliding groove; a length scale (22) is arranged on the upper end surface of the measuring rod (802); and one end of the measuring rod (802) is rotatably connected to the push plate (803) via a rotating shaft.

5. The bending die assembly of the pipe bending machine according to claim 1, characterized in that: The upper end of the base (1) on one side of the bending wheel (2) is provided with a mounting groove (15), two guide rods (18) are installed inside the mounting groove (15), the movable plate (6) is slidably installed on the surface of the two guide rods (18), one end of the base (1) is threadedly connected with a second screw rod (19) through a screw hole, one end of the second screw rod (19) is rotatably connected to the movable plate (6), and the other end of the second screw rod (19) is provided with a second handle (20).

6. The bending die assembly of the pipe bending machine according to claim 1, characterized in that: An annular plate (16) is installed on the upper end of the base (1) outside the angle scale (9), the limit block (11) is installed inside the annular plate (16) through a sliding groove, and a fixing bolt 2 (17) is installed on the upper end of the limit block (11).

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