Hydraulic pipe bending machine

Abstract

The utility model discloses a hydraulic pipe bending machine, and relates to a pipe bending machine. The pipe bending machine aims to solve the problems that an existing pipe bending machine is complex in structure, large in occupied space and very inconvenient to maintain and move. The pipe fitting punching device comprises a base, a supporting frame, a movable frame, a hydraulic cylinder, a pipe fitting lower supporting assembly and a punching assembly. The supporting frame is fixed to the base, a cylinder body of the hydraulic cylinder is fixed in the supporting frame, the supporting frame is sleeved with the movable frame, a piston of the hydraulic cylinder is fixedly connected with the bottom of the movable frame, the lower pipe fitting supporting assembly is installed on the upper surface of the supporting frame, and the stamping assembly is installed on the top of the movable frame and located above the lower pipe fitting supporting assembly. The utility model belongs to the technical field of hydraulic equipment.

Description

Technical Field

[0001] This utility model relates to a pipe bending machine, belonging to the field of hydraulic equipment technology. Background Technology

[0002] A pipe bending machine is a device that uses external force to bend pipes into a certain arc. It is mainly used to bend and shape pipe materials and is widely used in the construction and machinery fields.

[0003] A utility model patent with publication number CN209379712U and application date of December 6, 2018, discloses a pipe bending machine device, specifically including a base for providing a fixed installation position; a pipe bending mechanism disposed on the base for performing pipe bending operations; a drive mechanism disposed on one side of the pipe bending mechanism for providing driving force to the pipe bending mechanism; and a control box disposed on the opposite side of the pipe bending mechanism away from the drive mechanism for controlling the pipe bending machine device. However, this device has a complex structure, occupies a large space, and is very inconvenient for maintenance and relocation. Utility Model Content

[0004] This utility model addresses the problems of existing pipe bending machines having complex structures, occupying large spaces, and being inconvenient to maintain and move, and proposes a hydraulic pipe bending machine.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: This utility model includes a base, a support frame, a movable frame, a hydraulic cylinder, a pipe fitting lower support assembly, and a stamping assembly;

[0006] The support frame is fixed on the base, the cylinder body of the hydraulic cylinder is fixed inside the support frame, the movable frame is fitted on the support frame, the piston of the hydraulic cylinder is fixedly connected to the bottom of the movable frame, the lower support assembly of the pipe fitting is installed on the upper surface of the support frame, the stamping assembly is installed on the top of the movable frame, and the stamping assembly is located above the lower support assembly of the pipe fitting.

[0007] Furthermore, the lower support assembly for the pipe fitting includes two support units;

[0008] Two support units are arranged side by side on the upper surface of the support frame.

[0009] Furthermore, each support unit includes a lower support roller, a tubular guide pulley, and two lower support bearing seats;

[0010] Two lower support bearing seats are fixed side by side on the upper surface of the support frame. The lower support roller passes through the two lower support bearing seats in sequence, and the pipe guide pulley is coaxially fixedly fitted on the end of the lower support roller.

[0011] Furthermore, the stamping assembly includes a stamping shaft and two stamping bearing seats;

[0012] Two stamped bearing housings are fixed side by side on the top of the movable frame, and the stamping shaft passes through the two stamped bearing housings in sequence.

[0013] Furthermore, the stamping assembly also includes bushings;

[0014] The bushing is coaxially fixedly fitted onto one end of the stamping shaft.

[0015] Furthermore, the outer surface of the bushing is provided with continuous anti-slip teeth along the circumferential direction.

[0016] Furthermore, the stamping assembly also includes a rotary handle;

[0017] The rotating handle is coaxially fixed to the other end of the stamping shaft.

[0018] Furthermore, the base, support frame, and movable frame are all rectangular frames made of square tubing.

[0019] The beneficial effects of this utility model are:

[0020] 1. Compared with existing pipe bending machines, this utility model has a simple structure, fewer parts, and is easy to maintain and move. At the same time, the overall height and width of this utility model are reduced by half compared with existing pipe bending machines.

[0021] 2. This utility model uses hydraulic pressure as the driving force, which can bend pipes of various materials without the need for high-temperature heating of the bending part of the pipe, thus improving work efficiency.

[0022] 3. This utility model adopts a two-point support and one-point stamping method to bend the pipe fitting, which can adapt to various types of pipe fittings, making this utility model widely applicable. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a partial sectional view of the present invention;

[0025] Figure 1 and Figure 2 In the middle, 1-base, 2-support frame, 3-movable frame, 4-hydraulic cylinder, 5-lower support roller, 6-pipe guide pulley, 7-lower support bearing seat, 8-stamping shaft, 9-stamping bearing seat, 10-shaft sleeve, 11-rotating handle. Detailed Implementation

[0026] Specific implementation method one: as follows Figure 1 and Figure 2 As shown, a hydraulic pipe bending machine includes a base 1, a support frame 2, a movable frame 3, a hydraulic cylinder 4, a pipe fitting lower support assembly, and a stamping assembly;

[0027] The support frame 2 is fixed on the base 1, the cylinder body of the hydraulic cylinder 4 is fixed inside the support frame 2, the movable frame 3 is fitted on the support frame 2, the piston of the hydraulic cylinder 4 is fixedly connected to the bottom of the movable frame 3, the lower support assembly of the pipe fitting is installed on the upper surface of the support frame 2, the stamping assembly is installed on the top of the movable frame 3, and the stamping assembly is located above the lower support assembly of the pipe fitting.

[0028] The lower support assembly for the pipe fitting includes two support units, which are arranged side by side on the upper surface of the support frame 2 along its length. Each support unit consists of a lower support roller 5, a pipe fitting guide pulley 6, and two lower support bearing seats 7. The two lower support bearing seats 7 are arranged side by side along the width of the support frame 2 and are fixedly connected to the sliding holes on the support frame 2 by fixing bolts. The sliding holes on the upper surface of the support frame 2 allow the position of the lower support bearing seats 7 to be adjusted at any time, thereby adjusting the distance between the two support units. The lower support roller 5 passes through the two lower support bearing seats 7 in sequence. The inner ring of the bearing in the lower support bearing seat 7 is fixedly fitted on the lower support roller 5. The pipe fitting guide pulley 6 is coaxially fixedly fitted on the end of the lower support roller 5, and the two pipe fitting guide pulleys 6 are located on the same side.

[0029] The stamping assembly includes a stamping shaft 8, two stamping bearing seats 9, a bushing 10, and a rotating handle 11. The two stamping bearing seats 9 are arranged side by side along the width direction of the movable frame 3 on the inner top surface of the movable frame 3, and the stamping bearing seats 9 are fixedly connected to the inner top surface of the movable frame 3 by bolts. The stamping shaft 8 passes through the two stamping bearing seats 9 in sequence. The inner ring of the bearing in the stamping bearing seat 9 is fixedly fitted on the stamping shaft 8. The bushing 10 is coaxially fixedly fitted on one end of the stamping shaft 8. The bushing 10 and the two pipe guide pulleys 6 are located on the same side, and the bushing 10 and the two pipe guide pulleys 6 form an isosceles triangle.

[0030] In order to increase the friction between the outer surface of the bushing 10 and the outer surface of the pipe, continuous toothed patterns are provided on the outer surface of the bushing 10; at the same time, in order to facilitate the rotation of the stamping shaft 8, a rotating handle 11 is fixedly mounted on the other end of the stamping shaft 8.

[0031] In order to further reduce the overall weight of the hydraulic pipe bending machine and facilitate its movement, the base 1, support frame 2 and movable frame 3 are all made of hollow square tubes welded into a rectangle.

[0032] The entire hydraulic pipe bending machine is 130cm high and 60cm wide.

[0033] Working principle

[0034] In use, place the pipe fitting on the two pipe fitting guide pulleys 6, control the piston of the hydraulic cylinder 4 to push the movable frame 3 downward until the outer surface of the bushing 10 contacts the outer surface of the pipe fitting, rotate the stamping shaft 8 to drive the bushing 10 to rotate, and the bushing 10 drives the pipe fitting to move. When the bending point of the pipe fitting moves to contact the outer surface of the bushing 10, stop rotating the stamping shaft 8, start the hydraulic cylinder 4, the piston of the hydraulic cylinder 4 pushes the movable frame 3 downward, and the bushing 10 bends the pipe fitting downward. When the pipe fitting bends to the specified arc, the piston of the hydraulic cylinder 4 stops moving downward, and then control the piston of the hydraulic cylinder 4 to pull the movable frame 3 upward until the bushing 10 returns to the initial position, remove the pipe fitting, and complete the sequential pipe bending work.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A hydraulic tube bender characterized by comprising: The utility model relates to a pipe fitting stamping device which comprises a base (1), a support frame (2), a movable frame (3), a hydraulic cylinder (4), a pipe fitting lower support assembly and a stamping assembly. The support frame (2) is fixed on the base (1), the cylinder body of the hydraulic cylinder (4) is fixed in the support frame (2), the movable frame (3) is sleeved on the support frame (2), the piston of the hydraulic cylinder (4) is fixedly connected with the bottom of the movable frame (3), the pipe fitting lower support assembly is installed on the upper surface of the support frame (2), the stamping assembly is installed on the top of the movable frame (3), and the stamping assembly is located above the pipe fitting lower support assembly.

2. A hydraulic tube bender according to claim 1, wherein The pipe fitting lower support assembly comprises two support units. The two support units are arranged side by side on the upper surface of the support frame (2).

3. A hydraulic tube bender according to claim 2, wherein Each support unit comprises a lower support roller (5), a pipe fitting guide pulley (6) and two lower support bearing seats (7). The two lower support bearing seats (7) are fixed side by side on the upper surface of the support frame (2), the lower support roller (5) passes through the two lower support bearing seats (7) in sequence, and the pipe fitting guide pulley (6) is coaxially fixedly sleeved on the end of the lower support roller (5).

4. A hydraulic tube bender according to claim 1 wherein, The stamping assembly comprises a stamping shaft (8) and two stamping bearing seats (9). The two stamping bearing seats (9) are fixed side by side on the top of the movable frame (3), and the stamping shaft (8) passes through the two stamping bearing seats (9) in sequence.

5. A hydraulic tube bender according to claim 4, wherein The stamping assembly further comprises a shaft sleeve (10). The shaft sleeve (10) is coaxially fixedly sleeved on one end of the stamping shaft (8).

6. A hydraulic tube bender according to claim 5, wherein The outer surface of the shaft sleeve (10) is provided with continuous anti-skid tooth patterns in the circumferential direction.

7. A hydraulic tube bender according to claim 4 wherein, The stamping assembly further comprises a rotating handle (11). The rotating handle (11) is coaxially fixedly sleeved on the other end of the stamping shaft (8).

8. A hydraulic tube bender according to claim 1 wherein, The base (1), the support frame (2) and the movable frame (3) are all rectangular frames made of square tubes.

Images