Round rod traceless bending device

Abstract

The utility model discloses a round bar traceless bending device, and belongs to the technical field of bending devices. A U-shaped fixing cushion block is fixed to the upper end of the fixing plate, two supporting plates of the fixing cushion block are rotationally connected with corresponding horizontally-arranged rotating shafts respectively, the two rotating shafts are arranged correspondingly, the two ends of each rotating shaft are fixedly connected with the upper end of a corresponding spring respectively, and the lower end of each spring is fixedly connected with the fixing cushion block. A pressing die is installed at the lower end of the upper die fixing plate and corresponds to the U-shaped opening of the fixing cushion block. According to the round bar bending device, through cooperation of the rotating shaft and the pressing die which are rotationally connected, rolling bending of a round bar is achieved, indentations and scratches generated on the surface of the round bar in a traditional bending mode are effectively avoided, and the surface quality and the use performance of the round bar are remarkably improved; and the maintenance difficulty and the operation technical threshold of equipment are reduced, the applicability and universality of the device are improved, and the machining requirements of round bars of multiple specifications and multiple materials can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of round bar traceless bending device, belong to bending device technical field. BACKGROUND

[0002] The mechanical structure design of existing round bar bending device leads to uncontrollable stress concentration phenomenon in bending process, so that irreversible mechanical damage is generated on the surface of round bar;At the same time, the complexity of structure composition increases the difficulty of equipment maintenance and operation technical threshold, limits its applicability in multi-specification, multi-material round bar processing scene. These problems comprehensively lead to that the prior art scheme cannot meet the comprehensive requirements of round bar bending processing quality, efficiency and versatility in high-end manufacturing field. UTILITY MODEL CONTENT

[0003] To solve the problems in the background art, the utility model provides a kind of round bar traceless bending device.

[0004] To achieve the above object, the utility model takes the following technical scheme: a kind of round bar traceless bending device, including fixed plate, fixed cushion block, pivot, spring, upper die fixed plate and press mould;The upper end of the fixed plate is fixed with the fixed cushion block of U type, the two supporting plates of the fixed cushion block are respectively rotationally connected with the pivot of corresponding horizontal arrangement, two pivots are correspondingly arranged, the two ends of each pivot are respectively fixedly connected with the upper end of corresponding spring, and the lower end of each spring is fixedly connected with the fixed cushion block, the lower end of the upper die fixed plate is provided with press mould, and the U-shaped mouth of the fixed cushion block is correspondingly arranged with the press mould.

[0005] At least one groove is formed on the outer side wall of each pivot, and the grooves of the two pivots are correspondingly arranged.

[0006] Each groove is arc-shaped structure matched with the outer diameter of round bar.

[0007] The lower end of the upper die fixed plate is fixed with fixed clamping block, and the lower end of the fixed clamping block is inserted with the upper end of the press mould.

[0008] The upper surface of the fixed plate is provided with positioning hole.

[0009] The sidewall of the fixed cushion block is inserted with limiting rod, and the limiting rod is arranged in cooperation with corresponding pivot.

[0010] The pressure head of the press mould is made of high-hardness and wear-resistant material.

[0011] The shape of the pressure head of the press mould is circular arc.

[0012] The radius of the circular arc of the pressure head of the press mould is matched with the radius of the round bar to be bent.

[0013] The outer surface of the die pressing head is provided with a wear-resistant and corrosion-resistant plating layer.

[0014] Compared with the prior art, the present application has the advantages of:

[0015] The present application has the advantages of simple structure, stable operation, high precision, and the like. The rolling bending of the round bar is realized through the cooperation of the rotationally connected rotating shaft and the die, effectively avoiding the indentation and scratches on the surface of the round bar in the traditional bending mode, significantly improving the surface quality and use performance of the round bar, reducing the maintenance difficulty and operation technical threshold of the equipment, improving the applicability and universality of the device, and meeting the processing requirements of round bars of multiple specifications and multiple materials. In addition, the automatic adjustment and control of the bending force are realized through the spring, avoiding the surface damage or inaccurate bending angle of the round bar caused by excessive or insufficient bending force, and improving the stability and accuracy of the bending process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the present application;

[0017] Figure 2 is a structural schematic view of the fixed pad;

[0018] Figure 3 is a structural schematic view of the rotating shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] A round bar traceless bending device, comprising a fixed plate 1, a fixed pad 2, a rotating shaft 3, a spring 6, an upper die fixed plate 7 and a die 9; the upper end of the fixed plate 1 is fixed with a U-shaped fixed pad 2, the two supporting plates of the fixed pad 2 are respectively rotationally connected with corresponding horizontally arranged rotating shafts 3, specifically: the inner walls of the two sides of the fixed pad 2 are correspondingly provided with circular limiting grooves 2-1, and each circular limiting groove 2-1 is rotationally limited with a horizontally arranged rotating shaft 3. The two rotating shafts 3 are correspondingly arranged, the two ends of each rotating shaft 3 are respectively fixedly connected with the upper end of a corresponding spring 6 through a corresponding upper limiting rod 4, the lower end of each spring 6 is fixedly connected with the fixed pad 2 through a corresponding lower limiting rod 5, the lower end of the upper die fixed plate 7 is provided with a die 9, and the die 9 is correspondingly arranged with the U-shaped opening of the fixed pad 2.

[0021] The spring 6 forms an elastic support structure to control the stroke, so that the rotating shaft 3 can automatically adjust its angle during rotation and maintain good contact with the round bar.

[0022] Each of the rotating shafts 3 has at least one groove 3-1 on its outer side wall. The grooves 3-1 of the two rotating shafts 3 are arranged in a one-to-one correspondence. The grooves 3-1 are used to place the round bar. The two ends of each rotating shaft 3 are respectively interference-fitted to the corresponding upper limit rod 4.

[0023] Each of the grooves 3-1 is an arc-shaped structure that matches the outer diameter of the round bar to ensure the stability of the round bar during rotation and reduce slippage and misalignment.

[0024] The lower end of the upper mold fixing plate 7 is fixed with a fixing block 8, and the lower end of the fixing block 8 is inserted into the upper end of the mold 9, which facilitates the replacement of different models of mold 9.

[0025] The upper surface of the fixing plate 1 is provided with a positioning hole that runs through its thickness direction, which facilitates quick positioning during operation.

[0026] Limiting rods 10 are inserted into the side wall of the fixed pad 2. The limiting rods 10 are respectively configured to cooperate with the corresponding rotating shafts 3 to limit the rotation of the rotating shafts 3 and limit the position of the round bar during the bending process.

[0027] The pressure head of the die 9 is made of high-hardness, wear-resistant materials such as tungsten carbide and cubic boron nitride, and its surface is finely polished to reduce friction with the surface of the round bar and avoid indentations and scratches.

[0028] The pressure head of the die 9 is arc-shaped, making its contact surface with the round bar smoother and more uniform. This design reduces stress concentration and lowers the risk of indentations on the surface of the round bar.

[0029] The radius of the arc of the pressure head of the pressure die 9 is matched with the radius of the round bar to be bent, so as to ensure that the pressure head can apply pressure evenly and stably during the bending process.

[0030] The outer surface of the pressure head of the pressure mold 9 is provided with a wear-resistant and corrosion-resistant coating, such as a hard chrome plating, to improve the durability and corrosion resistance of the pressure head.

[0031] When using this invention, first, fix the base 1 on the bending machine's worktable to ensure the device is stable and stationary. Place the round bar in the corresponding grooves 3-1 of the two rotating shafts 3, ensuring the bar is accurately positioned and will not slip. Start the machine tool, causing the upper die fixing plate 7 to drive the pressure die 9 downwards. The pressure head of the pressure die 9 contacts the round bar and applies pressure to gradually bend it to the required angle. During the bending process, the rotating shaft 3 maintains stable rotation under the action of the spring 6, and the pressure head of the pressure die 9 remains in contact with the surface of the round bar to avoid damage and ensure bending accuracy. After the round bar is bent to the required angle, turn off the machine tool and cause the upper die fixing plate 7 to drive the pressure die 9 upwards, detaching it from the round bar. Remove the bent round bar and check its surface quality and bending angle to ensure they meet the requirements.

[0032] 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 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 the 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.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A seamless bending device for round bars, characterized in that: It includes a fixed plate (1), a fixed pad (2), a rotating shaft (3), a spring (6), an upper mold fixed plate (7), and a pressing mold (9); the upper end of the fixed plate (1) is fixed with a U-shaped fixed pad (2), the two support plates of the fixed pad (2) are respectively rotatably connected to the corresponding horizontally set rotating shaft (3), the two rotating shafts (3) are respectively set, the two ends of each rotating shaft (3) are respectively fixedly connected to the upper end of the corresponding spring (6), the lower end of each spring (6) is fixedly connected to the fixed pad (2), the lower end of the upper mold fixed plate (7) is installed with a pressing mold (9), and the pressing mold (9) is set to correspond to the U-shaped opening of the fixed pad (2).

2. The seamless bending device for round bars according to claim 1, characterized in that: Each of the rotating shafts (3) has at least one groove (3-1) on its outer side wall, and the grooves (3-1) of the two rotating shafts (3) are arranged in a one-to-one correspondence.

3. The seamless bending device for round bars according to claim 2, characterized in that: Each of the grooves (3-1) is an arc-shaped structure that matches the outer diameter of the round bar.

4. The seamless bending device for round bars according to claim 1, characterized in that: The lower end of the upper mold fixing plate (7) is fixed with a fixing block (8), and the lower end of the fixing block (8) is inserted into the upper end of the pressing mold (9).

5. The seamless bending device for round bars according to claim 1, characterized in that: The upper surface of the fixing plate (1) is provided with positioning holes.

6. The seamless bending device for round bars according to claim 1, characterized in that: The side wall of the fixed pad (2) is connected to a limiting rod (10), and the limiting rod (10) is respectively configured to cooperate with the corresponding rotating shaft (3).

7. The seamless bending device for round bars according to claim 1, characterized in that: The pressure head of the mold (9) is made of a high-hardness, wear-resistant material.

8. The seamless bending device for round bars according to claim 7, characterized in that: The shape of the pressure head of the die (9) is arc-shaped.

9. The seamless bending device for round bars according to claim 8, characterized in that: The radius of the arc of the pressure head of the die (9) is matched with the radius of the round bar to be bent.

10. A seamless bending device for round bars according to claim 8, characterized in that: The outer surface of the pressure head of the die (9) is provided with a wear-resistant and corrosion-resistant coating.

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