Bending equipment

Abstract

The utility model provides bending equipment, which belongs to the technical field of chemical equipment part processing and comprises a base, a supporting pad is arranged in the center of the upper surface of the base, a V-shaped groove is arranged on the supporting pad, two fixing frames are arranged on the upper portion of the base in a sliding mode through sliding grooves, lower dies are respectively arranged in the two fixing frames in a hinged mode, and connecting columns are arranged on the lower portions of the fixing frames. The connecting columns are arranged in the sliding grooves in a sliding mode, and a driving piece is arranged on the lower portion of the base and used for driving the two connecting columns to move in the opposite directions. According to the utility model, the position of the lower die can be directly adjusted, and the lower die can be disassembled and assembled without the help of an external tool, so that the overall downtime of equipment is reduced, and the bending efficiency of a workpiece is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment parts processing technology, specifically to a bending device. Background Technology

[0002] In the field of chemical equipment parts processing, bending technology is a crucial step, playing a key role in the processing of materials such as pipes and plates. Chemical equipment comprises numerous types of parts, among which aluminum pipes, due to their outstanding advantages, occupy an important position in the chemical equipment field. Aluminum pipes not only possess extremely high corrosion resistance, enabling stable operation in complex chemical environments, but are also lightweight. This characteristic facilitates easier equipment installation and transportation, as well as subsequent maintenance and repair. Therefore, they are widely used in critical aspects of chemical equipment such as pipeline connections and fluid transportation.

[0003] Pipe bending machines and other bending equipment are commonly used tools in pipe bending processes. These machines primarily achieve the bending operation by using an upper and lower die, and the bending angle can be adjusted by changing the distance between the two lower dies to meet different processing requirements.

[0004] However, existing pipe bending machines have significant shortcomings in adjusting the lower die position. When it is necessary to change the bending angle, the operator needs to use external tools to remove the lower die, then install it in the designated position and fix it. This adjustment method is not only cumbersome and time-consuming, but also results in long downtime for the entire machine, severely reducing the bending efficiency of the workpiece. Utility Model Content

[0005] In view of this, the present invention provides a bending device that allows for direct adjustment of the lower die position when the bending angle needs to be changed, without the need for external tools to disassemble or assemble the lower die, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0006] To solve the above-mentioned technical problems, this utility model provides a bending device, including a base. A groove is formed on the upper surface of the base, and two fixed frames are slidably arranged above the groove. A lower die is hinged to each of the two fixed frames. Hinge holes are formed on both side walls of the fixed frames, and hinge blocks are provided at both ends of the lower die. The lower die is hinged to the hinge holes of the fixed frames through the hinge blocks at both ends. A connecting column is provided at the lower part of the fixed frame, and the connecting column is slidably arranged in the groove. A driving component is provided at the lower part of the base, which drives the two connecting columns to move towards each other. By driving the two connecting columns to move towards each other, the positions of the two lower dies can be adjusted. This eliminates the need for external tools to disassemble and assemble the lower dies, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0007] The driving component includes a driving frame located at the bottom of the base, which is arranged along the length of the slide. A bidirectional lead screw is rotatably mounted inside the driving frame. Two movable blocks are threadedly connected to the threaded surfaces on both sides of the bidirectional lead screw. The cross-section of the movable blocks is adapted to the cross-section of the inner sidewall of the driving frame, allowing the movable blocks to move linearly along the inside of the driving frame. Two connecting columns are fixed to the upper end faces of the two movable blocks respectively. A motor is mounted on one side wall of the driving frame, and the output end of the motor is connected to the end of the bidirectional lead screw. Starting the motor causes the two lower dies to move closer or further apart without the need for external tools to disassemble or assemble the lower dies, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0008] Two support columns are set on both sides of the upper surface of the base. A top plate is fixed to the upper end of the support columns. The upper mold is installed on the lower part of the top plate through a hydraulic cylinder. The hydraulic cylinder is used to drive the upper mold to press down to bend the pipe. First, the pipe is placed on the upper part of the lower mold. The hydraulic cylinder is started. The output end of the hydraulic cylinder drives the upper mold to descend, so that the upper mold presses down on the pipe. Due to the support of the two lower molds, the position where the upper mold contacts the pipe becomes a fulcrum, so that the upper mold bends the pipe until the pipe abuts into the V-groove of the support pad, thus completing the bending.

[0009] The fixed end of the hydraulic cylinder is fixed to the upper part of the top plate, and the output end of the hydraulic cylinder passes through the upper wall of the top plate. The output end of the hydraulic cylinder is fixed with a mounting bracket, which is an L-shaped structure. The upper mold is detachably mounted on the mounting bracket. Through the detachable setting, the operator can replace the upper mold with different diameter specifications to adjust the curvature of the pipe bend.

[0010] A pin is fixed on the side wall of the mounting bracket. A pin hole is opened in the center of the upper mold. The center of the upper mold is inserted into the pin through the pin hole. A locking part is provided at the end of the pin. The locking part is used to fix the position of the upper mold on the pin. By aligning the pin hole in the center of the upper mold with the position of the pin and then inserting it, the upper mold is finally locked with the locking part to prevent the upper mold from shifting on the pin and improve the stability of the upper mold.

[0011] The locking part includes a screw fixed to the end of the pin shaft. A nut is threaded onto the surface of the screw shaft. After the nut is installed on the screw shaft, it can fit tightly against the side wall of the upper mold. After the operator puts the upper mold on the pin shaft, the nut is threaded onto the screw shaft so that the nut can fit tightly against the side wall of the upper mold. Thus, the upper mold is pressed and fixed by the L-shaped mounting bracket and the nut, thereby completing the locking of the upper mold.

[0012] The outer wall of the nut is equipped with a rubber washer. When the nut is threaded onto the screw, the rubber washer will abut against the side wall of the upper mold. The rubber washer can prevent wear on the upper mold and improve the service life of the upper mold.

[0013] The threaded surface of the double-acting screw is a trapezoidal threaded surface, and its tooth profile is an isosceles trapezoid. It has high root strength and good transmission efficiency, which makes the overall strength of the double-acting screw higher. It has self-locking characteristics and can prevent backlash caused by external forces to a certain extent when it is engaged with the moving block.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] 1. When using this utility model, if it is necessary to change the bending angle, the position of the lower die can be adjusted directly without the need for external tools to disassemble and assemble the lower die, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0016] 2. When using this utility model, the detachable upper mold allows workers to replace it with upper molds of different diameters to adjust the curvature of the pipe bend.

[0017] 3. When this utility model is used, the rubber gasket will abut against the side wall of the upper mold. The rubber gasket can prevent wear on the upper mold and improve the service life of the upper mold.

[0018] 4. When this utility model is used, the overall strength of the bidirectional lead screw is higher and it has self-locking characteristics. When it is used in conjunction with the movable block, it can prevent the phenomenon of backing away caused by external force to a certain extent. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of the drive frame of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the upper mold after disassembly of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Base; 101. Support pad; 102. Support column; 103. Slide groove; 200. Top plate; 300. Hydraulic cylinder; 400. Mounting bracket; 401. Pin; 402. Screw; 500. Upper mold; 600. Drive frame; 601. Two-way lead screw; 602. Motor; 603. Movable block; 700. Fixed bracket; 701. Lower mold; 702. Connecting column; 800. Nut; 801. Rubber washer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0026] A bending device, such as Figure 1 , Figure 2 and Figure 3 As shown: It includes a base 100, and a groove 103 is provided on the upper surface of the base 100. Two fixed frames 700 are slidably arranged above the groove 103. The two fixed frames 700 are respectively hinged to a lower mold 701. The two side walls of the fixed frames 700 are provided with hinge holes. The two ends of the lower mold 701 are provided with hinge blocks. The lower mold 701 is hinged to the fixed frame 700 through the hinge blocks at both ends. A connecting column 702 is provided at the lower part of the fixed frame 700. The connecting column 702 is slidably arranged in the groove 103. A driving member is provided at the lower part of the base 100. The driving member is used to drive the two connecting columns 702 to move towards each other.

[0027] The driving component drives the two connecting columns 702 to move in opposite directions, thereby driving the fixed frame 700 and the lower die 701 to move synchronously. This allows the two lower dies 701 to move closer or further apart, thus adjusting their positions. The lower dies 701 can be disassembled and assembled without the need for external tools, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0028] Specifically, the driving component includes a driving frame 600 located at the lower part of the base 100, and the driving frame 600 is arranged along the length direction of the slide groove 103. A bidirectional lead screw 601 is rotatably arranged inside the driving frame 600. Two movable blocks 603 are threadedly connected to the threaded surfaces on both sides of the bidirectional lead screw 601. The cross-section of the movable blocks 603 is adapted to the cross-section of the inner sidewall of the driving frame 600, so that the movable blocks 603 can move linearly along the inside of the driving frame 600. Two connecting columns 702 are fixed to the upper end faces of the two movable blocks 603 respectively. A motor 602 is arranged on one side wall of the driving frame 600, and the output end of the motor 602 is connected to the end of the bidirectional lead screw 601.

[0029] The operator starts the motor 602, and the output end of the motor 602 drives the bidirectional lead screw 601 to rotate. When the bidirectional lead screw 601 rotates, it causes the two movable blocks 603 on both sides of the surface to move closer or further apart, so that the two movable blocks 603 move towards each other. During the movement of the two movable blocks 603, the movable blocks 603 will drive the connecting column 702 to move synchronously, so that the connecting column 702 slides linearly in the slide groove 103. The connecting column 702 drives the fixed frame 700 to move synchronously, so that the fixed frame 700 drives the lower die 701 to move synchronously, so that the two lower dies 701 move closer or further apart. The lower dies 701 do not need to be disassembled or assembled with external tools, thereby reducing the overall downtime of the equipment and improving the bending efficiency of the workpiece.

[0030] It is worth mentioning that the thread surface of the double-acting screw 601 is a trapezoidal thread surface, and its tooth profile is an isosceles trapezoid. The tooth root strength is high and the transmission efficiency is also good, which makes the overall strength of the double-acting screw 601 higher and has self-locking characteristics. When it is engaged with the moving block 603, it can prevent the backlash caused by external force to a certain extent.

[0031] according to Figure 1 As shown, two support columns 102 are provided on both sides of the upper surface of the base 100. A top plate 200 is fixed to the upper end of the support column 102. An upper mold 500 is installed on the lower part of the top plate 200 through a hydraulic cylinder 300. The hydraulic cylinder 300 is used to drive the upper mold 500 to press down to bend the pipe.

[0032] Specifically, during the bending process, the pipe is placed on top of the lower die 701. Since both the lower die 701 and the upper die 500 have grooves on their surfaces, the pipe can be engaged within the grooves of the lower die 701 without rolling. The hydraulic cylinder 300 is activated, and its output drives the upper die 500 downwards, pressing down on the pipe. Supported by the two lower dies 701, the contact point between the upper die 500 and the pipe becomes a fulcrum, allowing the upper die 500 to bend the pipe until it abuts against the V-groove of the support pad 101, thus completing the bending. The greater the distance between the two lower dies 701, the smaller the bending angle of the pipe; conversely, the closer the two lower dies 701, the larger the bending angle.

[0033] according to Figure 1 and Figure 4 As shown, the fixed end of the hydraulic cylinder 300 is fixed to the upper part of the top plate 200, and the output end of the hydraulic cylinder 300 passes through the upper wall of the top plate 200. The output end of the hydraulic cylinder 300 is fixed with a mounting bracket 400, which has an L-shaped structure. The upper mold 500 is detachably mounted on the mounting bracket 400. Through the detachable mounting, the operator can replace the upper mold 500 with different diameter specifications to adjust the curvature of the pipe bend.

[0034] Specifically, a pin 401 is fixed on the side wall of the mounting bracket 400, and a pin hole is provided in the center of the upper mold 500. The center of the upper mold 500 is inserted into the pin 401 through the pin hole. A locking part is provided at the end of the pin 401, which is used to fix the position of the upper mold 500 on the pin 401.

[0035] By aligning the pin hole at the center of the upper mold 500 with the position of the pin shaft 401 and then inserting it, and finally locking the upper mold 500 with the locking part, displacement of the upper mold 500 on the pin shaft 401 is prevented, thereby improving the stability of the upper mold 500.

[0036] Specifically, the locking part includes a screw 402 fixed to the end of the pin 401, and a nut 800 is threaded onto the surface of the screw 402. After the nut 800 is installed on the screw 402, the nut 800 can fit tightly against the side wall of the upper mold 500.

[0037] After the workers put the upper mold 500 onto the pin 401, they threaded the nut 800 onto the screw 402 so that the nut 800 could fit tightly against the side wall of the upper mold 500. The upper mold 500 was then pressed and fixed by the L-shaped mounting bracket 400 and the nut 800, thus completing the locking of the upper mold 500.

[0038] Furthermore, the outer wall of the nut 800 is provided with a rubber washer 801. When the nut 800 is threaded onto the screw 402, the rubber washer 801 will abut against the side wall of the upper mold 500. The rubber washer 801 can prevent wear on the upper mold 500 and improve the service life of the upper mold 500.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A bending device, comprising a base (100), wherein a support pad (101) is disposed at the center of the upper surface of the base (100), and a V-groove is formed on the support pad (101), characterized in that: The upper part of the base (100) is slidably provided with two fixed frames (700) via a slide groove (103). The two fixed frames (700) are respectively hinged with lower molds (701). The lower part of the fixed frame (700) is provided with a connecting column (702), which is slidably provided in the slide groove (103). The lower part of the base (100) is provided with a driving member, which is used to drive the two connecting columns (702) to move towards each other.

2. The bending device as described in claim 1, characterized in that: The driving component includes a driving frame (600) disposed at the lower part of the base (100). A bidirectional lead screw (601) is rotatably disposed inside the driving frame (600). Two movable blocks (603) are threadedly connected to the threaded surfaces on both sides of the bidirectional lead screw (601). Two connecting columns (702) are fixed to the upper end surfaces of the two movable blocks (603). A motor (602) is disposed on one side wall of the driving frame (600). The output end of the motor (602) is connected to the end of the bidirectional lead screw (601).

3. The bending device as described in claim 1, characterized in that: The upper surface of the base (100) is fixed with a top plate (200) on both sides by support columns (102). The lower part of the top plate (200) is equipped with an upper mold (500) by a hydraulic cylinder (300). The hydraulic cylinder (300) is used to drive the upper mold (500) to press down to bend the pipe.

4. A bending device as described in claim 3, characterized in that: The hydraulic cylinder (300) is fixed on the upper part of the top plate (200), and the output end of the hydraulic cylinder (300) passes through the upper wall of the top plate (200). The output end of the hydraulic cylinder (300) is fixed with a mounting bracket (400), and the upper mold (500) is detachably mounted on the mounting bracket (400).

5. A bending device as described in claim 4, characterized in that: A pin (401) is fixed on the side wall of the mounting bracket (400). The center of the upper mold (500) is inserted into the pin (401) through a pin hole. A locking part is provided at the end of the pin (401) to fix the position of the upper mold (500) on the pin (401).

6. A bending device as described in claim 5, characterized in that: The locking part includes a screw (402) fixed to the end of the pin (401). A nut (800) is threaded onto the surface of the screw (402). After the nut (800) is installed on the screw (402), the nut (800) can fit tightly against the side wall of the upper mold (500).

7. A bending device as described in claim 6, characterized in that: The outer wall of the nut (800) is provided with a rubber washer (801). When the nut (800) is threaded onto the screw (402), the rubber washer (801) will abut against the side wall of the upper mold (500).

8. A bending device as described in claim 2, characterized in that: The threaded surface of the bidirectional lead screw (601) is a trapezoidal threaded surface.

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