A follower mechanism for reverse deformation of an electric pipe bending machine

Abstract

This utility model relates to a follower mechanism for anti-deformation in an electric pipe bending machine. It includes an anti-deformation wheel that slides axially along the pipe on the machine body and restricts pipe deformation, and a drive device that drives the anti-deformation wheel forward. The drive device includes a base located behind the mounting frame and a spring. A clamping block is in contact with the front side of the mounting frame. In use, the bending die drives the clamping block to rotate. After rotation, the contact point between the clamping block and the mounting frame moves forward, causing the anti-deformation wheel to move forward. This moves the anti-deformation wheel closer to the pipe's bending point, thus controlling pipe deformation. The sliding groove and slider guide the movement of the mounting frame. The anti-deformation wheel is positioned within the mounting frame, facilitating the spring's movement by pushing the mounting frame. Simultaneously, the opening allows the pipe to contact the anti-deformation wheel.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending equipment technology, specifically to a follow-up mechanism for anti-deformation of an electric pipe bending machine. Background Technology

[0002] During the pipe bending process, especially for thin-walled or soft pipes, electric pipe bending machines can cause deformation due to uneven stress at the bending point. This deformation typically manifests as thinning of the outer wall and increase in diameter at the bend, while the inner wall thickens and wrinkles, severely affecting the quality and precision of the bend and making it difficult to meet the requirements of some industrial applications with strict requirements for pipe size and shape.

[0003] Currently, existing electric pipe bending machines often lack effective anti-deformation control measures during pipe bending, or the anti-deformation methods used are relatively simple, with the anti-deformation wheel position fixed, preventing the anti-deformation wheel from moving forward in contact with the steel pipe, thus preventing the anti-deformation wheel from getting close to the bending point of the steel pipe and thus controlling the deformation of the steel pipe. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a follower mechanism for anti-deformation in an electric pipe bending machine. During the bending process, the anti-deformation wheel moves forward, causing the contact face between the anti-deformation wheel and the steel pipe to move closer to the bending point of the steel pipe, thereby controlling the deformation of the steel pipe.

[0005] This utility model is achieved through the following technical solution: a follower mechanism for anti-deformation of an electric pipe bending machine, comprising an anti-deformation wheel that slides along the pipe axis onto the pipe bending machine body and restricts the deformation of the pipe, and a drive device that drives the anti-deformation wheel to slide forward.

[0006] In use, the steel pipe is inserted between the anti-deformation wheel and the bending die, and passes through the clamping block. When bending the pipe, the bending die rotates, which drives the clamping block to rotate. The rotation of the clamping block causes the pipe to bend, and the steel pipe moves forward. At the same time, the driving device pushes the anti-deformation wheel forward, so that the anti-deformation wheel and the steel pipe contact face move forward and get closer to the bending point of the steel pipe, thereby controlling the deformation of the steel pipe.

[0007] Preferably, the anti-deformation wheel is disposed inside the mounting frame, the mounting frame has an opening on the side near the pipe, the mounting frame is slidably attached to the pipe bending machine body along the pipe axis, and the driving device drives the mounting frame to move forward.

[0008] This invention features an anti-deformation wheel installed inside a mounting frame, which facilitates the movement of the anti-deformation wheel by the drive device pushing the mounting frame; at the same time, the opening allows the pipe to come into contact with the anti-deformation wheel.

[0009] The bottom surface of the mounting bracket is connected to a slider with an inverted T-shaped cross section, and the body of the pipe bending machine is provided with a groove that cooperates with the slider.

[0010] This preferred solution uses the cooperation of a slide and a slider to guide the movement of the mounting bracket.

[0011] Preferably, the groove is further provided with a limiting block that restricts the sliding of the slider and is located in front of the bending die.

[0012] This preferred solution, by setting a limit block, prevents the slider from sliding to the outside of the groove, ensuring that the mounting bracket reaches its limit state when it slides to this position.

[0013] Preferably, the drive device includes a base located behind the mounting bracket, and springs that are fixed at both ends to the base and the mounting bracket respectively and are compressed, and a clamping block that cooperates with the pipe bending mold to bend the pipe is in contact with the front side of the mounting bracket.

[0014] This preferred solution uses a base and spring to automatically move the mounting frame forward. The clamping block is connected to the front side of the mounting frame to restrict its movement. During pipe bending, the bending mold drives the clamping block to rotate. After the clamping block rotates, the contact point between the clamping block and the mounting frame moves forward, thereby moving the anti-deformation wheel forward. This causes the anti-deformation wheel to move closer to the steel pipe and thus control the deformation of the steel pipe.

[0015] Preferably, the anti-deformation wheel is fixedly connected to a wheel box with a side opening, and the wheel box is installed in a mounting frame by a pin.

[0016] This preferred solution facilitates the connection between the anti-deformation wheel and the mounting frame through the setting of the wheel box, and also facilitates the installation of different anti-deformation wheels in the mounting frame.

[0017] Preferably, the pipe bending mold includes a central wheel whose axis extends along the height direction, and an annular pipe bending groove is formed on the circumferential surface of the central wheel, and the clamping block is fixed to the central wheel.

[0018] Preferably, a graphite copper sliding plate that contacts the slider is embedded in the groove. This preferred embodiment uses the graphite copper sliding plate for lubrication.

[0019] The beneficial effects of this utility model are as follows: The base and spring automatically drive the mounting frame forward; the clamping block, connected to the front side of the mounting frame, restricts the movement of the mounting frame; simultaneously, during pipe bending, the bending mold drives the clamping block to rotate, and after rotation, the contact point between the clamping block and the mounting frame moves forward, thereby moving the anti-deformation wheel forward. This allows the anti-deformation wheel to move closer to the steel pipe's bending point, thus controlling the steel pipe's deformation; the cooperation of the sliding groove and slider guides the movement of the mounting frame; the anti-deformation wheel, positioned within the mounting frame, facilitates the spring's movement by pushing the mounting frame; and the opening allows the pipe to contact the anti-deformation wheel. Attached Figure Description

[0020] Figure 1 This is a top view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 3 This is a left-side view of the structure of this utility model;

[0023] As shown in the figure:

[0024] 1. Mounting bracket, 2. Wheel box, 3. Anti-deformation wheel, 4. Spring, 5. Base, 6. Pipe bending machine body, 7. Pipe bending mold, 8. Pin, 9. Clamping block, 10. Slider. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0026] See attached document Figure 1-3 The present invention discloses a follower mechanism for anti-deformation of an electric pipe bending machine, comprising a pipe bending mold 7 and a mounting frame 1. The pipe bending device and the mounting frame 1 are located on both sides of the pipe. The pipe bending mold 7 includes a central wheel whose axis extends along the height direction. An annular pipe bending groove is formed on the circumferential surface of the central wheel. The pipe bending machine is equipped with a motor that drives the central wheel to rotate.

[0027] A clamping block 9 is provided on the circumferential surface of the center wheel. The clamping block 9 includes an upper fixed plate and a lower fixed plate, as well as a fixing rod passing through the upper fixed plate and the lower fixed plate. A limiting cap supported on the upper fixed plate is provided on the fixing rod. A nut located on the lower fixed plate is bolted to the fixing rod. The upper fixed plate and the lower fixed plate are located between the limiting cap and the nut. The tail end of the pipe passes through the fixing rod and the bending groove. The upper fixed plate and the lower fixed plate have elongated holes for the fixing rod to pass through. The elongated holes extend radially along the pipe. The width of the limiting cap and the nut is greater than the width of the elongated holes, thereby realizing the adjustment of the position of the fixing rod, that is, adjusting the distance between the fixing rod and the center wheel, so as to facilitate the bending of pipes with different diameters.

[0028] The bottom surface of the mounting bracket 1 is connected to a slider 10 with an inverted T-shaped cross section. The tube bending machine body 6 is provided with a groove that cooperates with the slider 10. A graphite copper sliding plate that contacts the slider 10 is embedded in the groove. A limiting block that restricts the sliding of the slider 10 and is located in front of the tube bending mold 7 is also provided in the groove. The groove extends along the axial direction of the tube.

[0029] The pipe bending machine body 6 is also equipped with a drive device that drives the mounting frame 1 to move. The drive device includes a base 5 located behind the mounting frame 1, and a spring 4 that is fixed at both ends to the base 5 and the mounting frame 1 and is compressed. The clamping block 9 is in contact with the front side of the mounting frame 1, thereby restricting the movement of the mounting frame 1. The spring 4 extends along the axial direction of the pipe.

[0030] The mounting frame 1 is equipped with a wheel box 2, which is fixed in the mounting frame 1 by a pin 8. The mounting frame 1 and the wheel box 2 have openings on the side near the pipe. The wheel box 2 is equipped with several anti-deformation wheels 3 arranged along the axial direction of the pipe. The axis of the anti-deformation wheels 3 extends along the height direction.

[0031] The anti-deformation wheel 3, the center wheel, and the clamping block 9 are all existing technologies.

[0032] In use, the pipe is placed between the center wheel and the anti-deformation wheel 3, so that the tail of the pipe passes through the fixed rod and the bending groove. At this time, the spring 4 drives the mounting frame 1 to move forward, while the mounting frame 1 is stationary due to the restriction of the clamping block 9. When bending the pipe, the bending mold 7 drives the clamping block 9 to rotate. The rotation of the clamping block 9 causes the pipe to bend, and the steel pipe will move forward. After the clamping block 9 rotates, the contact point between the clamping block 9 and the mounting frame 1 moves forward. Under the drive of the spring 4, the mounting frame 1 and the anti-deformation wheel 3 move forward, thereby moving the anti-deformation wheel 3 closer to the steel pipe and thus controlling the deformation of the steel pipe.

[0033] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A servo mechanism for use in the reverse bending of an electric pipe bender, characterized by: It includes a counter-deformation wheel (3) that slides along the pipe axis onto the pipe bending machine body (6) and restricts the deformation of the pipe, and a drive device that drives the counter-deformation wheel (3) to slide forward; the drive device includes a base (5) located behind the mounting frame (1), and a spring (4) that is fixed at both ends to the base (5) and the mounting frame (1) and is compressed, and a clamping block (9) that cooperates with the pipe bending mold (7) to bend the pipe is in contact with the front side of the mounting frame (1).

2. The follow-up mechanism for the reverse deformation of the electric pipe bender according to claim 1, characterized in that: The anti-deformation wheel (3) is set inside the mounting frame (1). The mounting frame (1) has an opening on the side near the pipe. The mounting frame (1) slides along the pipe axis on the pipe bending machine body (6). The driving device drives the mounting frame (1) to move forward.

3. The follow-up mechanism for the reverse deformation of the electric pipe bender according to claim 2, characterized in that: The mounting bracket (1) has a slider (10) with an inverted T-shaped cross section connected to its bottom surface, and the pipe bending machine body (6) has a groove that cooperates with the slider (10).

4. The follow-up mechanism for the reverse deformation of the electric pipe bender according to claim 3, characterized in that: The groove is also provided with a limiting block that restricts the sliding of the slider (10) and is located in front of the bending mold (7).

5. The follow-up mechanism for anti-deformation of the electric pipe bender according to claim 2, characterized in that: The anti-deformation wheel (3) is fixedly connected to the wheel box (2) with a side opening, and the wheel box (2) is installed in the mounting frame (1) by means of a pin (8).

6. The follow-up mechanism for anti-deformation of the electric pipe bender according to claim 1, characterized in that: The pipe bending mold (7) includes a central wheel whose axis extends along the height direction, and an annular pipe bending groove is provided on the circumferential surface of the central wheel. The clamping block (9) is fixed to the central wheel.

7. The follow-up mechanism for anti-deformation of the electric pipe bender according to claim 3, characterized in that: The groove is inlaid with a graphite copper sliding plate that contacts the slider (10).

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