Automatic stopping structure of hydraulic pipe bender

Abstract

The utility model discloses an automatic stopping structure of a hydraulic pipe bender, which comprises a bottom plate and is characterized in that the top of the bottom plate is fixedly connected with a workbench through a support, the right end of the top of the workbench is provided with a hydraulic rod body, and the left end of the hydraulic rod body is fixedly connected with a connecting plate. The motor can drive the threaded rod to rotate, so that the threaded sleeve moves on the threaded rod, the guide block slides in the guide groove, stable movement of the threaded sleeve can be ensured, the limiting block is driven to adjust the position in the first groove, and the infrared distance meter is used for monitoring the movement distance of the limiting block in real time; and when the hydraulic rod body moves to a proper distance, the motor is closed, then the hydraulic rod body is controlled to operate, the pipe bending head bends a pipeline, and the check block can move along with the connecting plate in the pipe bending process, so that the check block can make contact with the limiting block, and the limiting effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe bender technology, specifically to an automatic stop structure for a hydraulic pipe bender. Background Technology

[0002] Hydraulic pipe bending machines are widely used in the metal processing industry. They primarily use a hydraulic system to bend workpieces. The working principle of a hydraulic pipe bending machine is described below. A hydraulic pipe bending machine mainly consists of an oil tank, pump station, electrical system, and bending device. When bending is required, the metal pipe is first fixed on the bending device, and the bending angle and radius are adjusted. Then, the motor is started to drive the pump station, which injects pressurized hydraulic oil into the cylinder. However, current hydraulic pipe benders lack an automatic stop mechanism during the bending process. Previously, operators relied on their experience to judge the bending angle and position, which was not only inefficient but also prone to over-bending or under-bending, leading to a high scrap rate and increased production costs. Therefore, we propose an automatic stop mechanism for hydraulic pipe benders. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic stop structure for a hydraulic pipe bender, which has the advantage of automatic stop and solves the problem that current hydraulic pipe benders do not have an automatic stop structure during the bending process. In the past, they mainly relied on the operator's experience to judge the bending angle and position, which was not only inefficient, but also prone to over-bending or under-bending, resulting in a high scrap rate of pipes and increased production costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic stop structure for a hydraulic pipe bender, comprising a base plate, a worktable fixedly connected to the top of the base plate via a bracket, a hydraulic rod body mounted on the right end of the top of the worktable, a connecting plate fixedly connected to the left end of the hydraulic rod body, a pipe bending head provided on the left side of the connecting plate, a stop block fixedly connected to the bottom of the connecting plate, a first groove formed on the top of the worktable, an installation groove formed in the inner cavity of the worktable, an opening formed between the installation groove and the first groove, a threaded rod rotatably connected to the inner cavity of the installation groove via a bearing, a threaded sleeve threadedly connected to the outer surface of the threaded rod, a limit block fixedly connected to the top of the threaded sleeve, the limit block penetrating the opening and extending into the inner cavity of the first groove, a pressure sensor fixedly connected to the right side of the limit block, an infrared rangefinder fixedly connected to the left side of the inner cavity of the first groove, a motor fixedly connected to the left side of the worktable, and the output shaft of the motor fixedly connected to the threaded rod.

[0005] Preferably, a second groove is provided on the left side of the connecting plate, an electromagnet is fixedly connected to the right side of the inner cavity of the second groove, an iron plate is fixedly connected to the right side of the bent pipe head, and the electromagnet is connected to the iron plate by magnetic force.

[0006] Preferably, guide wheels are installed at both the front and rear ends of the top left end of the workbench, a guide groove is provided at the bottom of the inner cavity of the mounting groove, a guide block is fixedly connected to the bottom of the threaded sleeve, and the guide block is slidably connected to the inner cavity of the guide groove.

[0007] Preferably, a toolbox is fixedly connected to the left end of the top of the base plate, and a partition is fixedly connected to the inner cavity of the toolbox.

[0008] Preferably, a battery box is fixedly connected to the middle of the top of the base plate, and a storage battery is fixedly connected to the inner cavity of the battery box.

[0009] Preferably, a display is fixedly connected to the left end of the front of the workbench, and the input terminal of the display is electrically connected to the output terminal of the infrared rangefinder and the pressure sensor.

[0010] Preferably, a PLC controller is fixedly connected to the right end of the front of the workbench. The output terminal of the PLC controller is electrically connected to the input terminal of the motor, the hydraulic rod body and the electromagnet. The input terminal of the PLC controller is electrically connected to the output terminal of the infrared rangefinder and the pressure sensor.

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

[0012] 1. This utility model uses a motor to drive a threaded rod to rotate, causing a threaded sleeve to move on the threaded rod. A guide block slides within a guide groove to ensure smooth movement of the threaded sleeve, thereby adjusting the position of a limiting block within a first groove. An infrared rangefinder monitors the movement distance of the limiting block in real time and transmits the data to a PLC controller and display. When the block reaches the appropriate distance, the motor is turned off, and the hydraulic rod body is then controlled to bend the pipe. During the bending process, a stop block moves with the connecting plate, contacting the limiting block for a limiting effect. A pressure sensor detects the pressure between the limiting block and the stop block; when the pressure increases, the hydraulic rod body is shut off, thus achieving automatic stopping.

[0013] 2. This utility model uses the magnetic connection between the electromagnet and the iron plate to facilitate the replacement and maintenance of the bend head. If the bend head needs to be replaced, the electromagnet is de-energized by the PLC controller, and the electromagnet loses its magnetic connection with the iron plate, so the bend head can be removed for replacement. After replacement, the bend head is re-energized and fixed in place. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main sectional view of the workbench of this utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0017] In the diagram: 1. Base plate; 2. Battery box; 3. Workbench; 4. Toolbox; 5. Monitor; 6. Motor; 7. Guide wheel; 8. First groove; 9. Pipe bend; 10. Connecting plate; 11. Hydraulic rod body; 12. PLC controller; 13. Threaded sleeve; 14. Infrared rangefinder; 15. Limit block; 16. Pressure sensor; 17. Through port; 18. Stop block; 19. Mounting groove; 20. Iron plate; 21. Threaded rod; 22. Guide groove; 23. Guide block; 24. Second groove; 25. Electromagnet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Example 1:

[0021] Please see Figure 1-3As shown, this utility model provides an automatic stop structure for a hydraulic pipe bender, including a base plate 1. A workbench 3 is fixedly connected to the top of the base plate 1 via a bracket. A hydraulic rod body 11 is installed at the right end of the top of the workbench 3. A connecting plate 10 is fixedly connected to the left end of the hydraulic rod body 11. A pipe bending head 9 is provided on the left side of the connecting plate 10. A stop block 18 is fixedly connected to the bottom of the connecting plate 10. A first groove 8 is formed on the top of the workbench 3. An installation groove 19 is formed in the inner cavity of the workbench 3. An opening 17 is formed between the installation groove 19 and the first groove 8. A threaded rod 21 is rotatably connected to the inner cavity of the installation groove 19 via a bearing. The outer surface of the threaded rod 21... A threaded sleeve 13 is threaded, and a limiting block 15 is fixedly connected to the top of the threaded sleeve 13. The limiting block 15 passes through the through-hole 17 and extends into the inner cavity of the first groove 8. A pressure sensor 16 is fixedly connected to the right side of the limiting block 15. An infrared rangefinder 14 is fixedly connected to the left side of the inner cavity of the first groove 8. A motor 6 is fixedly connected to the left side of the worktable 3. The output shaft of the motor 6 is fixedly connected to the threaded rod 21. Guide wheels 7 are installed at both the front and rear ends of the top left end of the worktable 3. A guide groove 22 is opened at the bottom of the inner cavity of the mounting groove 19. A guide block 23 is fixedly connected to the bottom of the threaded sleeve 13. The guide block 23 is slidably connected to the inner cavity of the guide groove 22.

[0022] This technical solution uses motor 6 to drive threaded rod 21 to rotate, causing threaded sleeve 13 to move on threaded rod 21. Guide block 23 slides in guide groove 22 to ensure smooth movement of threaded sleeve 13, thereby driving limit block 15 to adjust its position in first groove 8. Infrared rangefinder 14 monitors the movement distance of limit block 15 in real time and transmits the data to PLC controller 12 and display 5. When it moves to the appropriate distance, motor 6 is turned off, and then hydraulic rod body 11 is controlled to run, causing pipe bender 9 to bend the pipe. During the bending process, stop block 18 moves with connecting plate 10, thereby contacting limit block 15 and playing a limiting role. Pressure sensor 16 can detect the pressure between limit block 15 and stop block 18. When the pressure increases, hydraulic rod body 11 is turned off, thereby playing an automatic stopping role.

[0023] Example 2:

[0024] Based on Embodiment 1, this utility model is as follows: Figure 1-3As shown, a second groove 24 is provided on the left side of the connecting plate 10. An electromagnet 25 is fixedly connected to the right side of the inner cavity of the second groove 24. An iron plate 20 is fixedly connected to the right side of the bend head 9. The electromagnet 25 is connected to the iron plate 20 by magnetic force. A toolbox 4 is fixedly connected to the left end of the top of the base plate 1. A partition is fixedly connected to the inner cavity of the toolbox 4. A battery box 2 is fixedly connected to the middle end of the top of the base plate 1. A storage battery is fixedly connected to the inner cavity of the battery box 2. A display 5 is fixedly connected to the left end of the front of the workbench 3. The input terminal of the display 5 is electrically connected to the output terminal of the infrared rangefinder 14 and the pressure sensor 16. A PLC controller 12 is fixedly connected to the right end of the front of the workbench 3. The output terminal of the PLC controller 12 is electrically connected to the input terminal of the motor 6, the hydraulic rod body 11 and the electromagnet 25. The input terminal of the PLC controller 12 is electrically connected to the output terminal of the infrared rangefinder 14 and the pressure sensor 16.

[0025] This technical solution uses the magnetic connection between the electromagnet 25 and the iron plate 20 to facilitate the replacement and maintenance of the bend head 9. If the bend head 9 needs to be replaced, the electromagnet 25 is de-energized by the PLC controller 12, and the electromagnet 25 loses its magnetic connection with the iron plate 20, so the bend head 9 can be removed for replacement. After replacement, the power is restored and the bend head is reattached and fixed.

[0026] The working principle of this utility model is as follows: Motor 6 drives the threaded rod 21 to rotate, causing the threaded sleeve 13 to move on the threaded rod 21. Guide block 23 slides within guide groove 22, ensuring smooth movement of the threaded sleeve 13. This, in turn, causes the limiting block 15 to adjust its position within the first groove 8. Infrared rangefinder 14 monitors the movement distance of the limiting block 15 in real time and transmits the data to PLC controller 12 and display 5. When the block reaches the appropriate distance, motor 6 is turned off, and then the hydraulic rod body 11 is controlled to operate, causing the pipe bending head 9 to bend the pipe. During the bending process, stop block 1... 8 moves with the connecting plate 10, thus contacting the limit block 15 and acting as a limit. The pressure sensor 16 can detect the pressure between the limit block 15 and the stop block 18. When the pressure increases, the hydraulic rod body 11 is closed, thus achieving automatic stop. The magnetic connection between the electromagnet 25 and the iron plate 20 facilitates the replacement and maintenance of the bend head 9. If the bend head 9 needs to be replaced, the PLC controller 12 controls the electromagnet 25 to be de-energized, and the electromagnet 25 loses its magnetic connection with the iron plate 20, so the bend head 9 can be removed for replacement. After replacement, the power is restored to fix it in place.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An automatic stop structure for a hydraulic pipe bender, comprising a base plate (1), characterized in that: A workbench (3) is fixedly connected to the top of the base plate (1) via a bracket. A hydraulic rod body (11) is installed on the right end of the top of the workbench (3). A connecting plate (10) is fixedly connected to the left end of the hydraulic rod body (11). A bend head (9) is provided on the left side of the connecting plate (10). A stop block (18) is fixedly connected to the bottom of the connecting plate (10). A first groove (8) is provided on the top of the workbench (3). An installation groove (19) is provided in the inner cavity of the workbench (3). An opening (17) is provided between the installation groove (19) and the first groove (8). The inner cavity of the worktable (3) is rotatably connected to a threaded rod (21) via a bearing. The outer surface of the threaded rod (21) is threadedly connected to a threaded sleeve (13). A limit block (15) is fixedly connected to the top of the threaded sleeve (13). The limit block (15) passes through the opening (17) and extends into the inner cavity of the first groove (8). A pressure sensor (16) is fixedly connected to the right side of the limit block (15). An infrared rangefinder (14) is fixedly connected to the left side of the inner cavity of the first groove (8). A motor (6) is fixedly connected to the left side of the worktable (3). The output shaft of the motor (6) is fixedly connected to the threaded rod (21).

2. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: The connecting plate (10) has a second groove (24) on its left side. An electromagnet (25) is fixedly connected to the right side of the inner cavity of the second groove (24). An iron plate (20) is fixedly connected to the right side of the bent pipe head (9). The electromagnet (25) is connected to the iron plate (20) by magnetic force.

3. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: Guide wheels (7) are installed at both ends of the top left of the workbench (3). A guide groove (22) is provided at the bottom of the inner cavity of the mounting groove (19). A guide block (23) is fixedly connected to the bottom of the threaded sleeve (13). The guide block (23) is slidably connected to the inner cavity of the guide groove (22).

4. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: A toolbox (4) is fixedly connected to the left end of the top of the base plate (1), and a partition is fixedly connected to the inner cavity of the toolbox (4).

5. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: A battery box (2) is fixedly connected to the middle of the top of the base plate (1), and a storage battery is fixedly connected to the inner cavity of the battery box (2).

6. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: A display (5) is fixedly connected to the left end of the front of the workbench (3). The input end of the display (5) is electrically connected to the output end of the infrared rangefinder (14) and the pressure sensor (16).

7. The automatic stop structure of a hydraulic pipe bender according to claim 1, characterized in that: A PLC controller (12) is fixedly connected to the right end of the front of the workbench (3). The output end of the PLC controller (12) is electrically connected to the input end of the motor (6), the hydraulic rod body (11) and the electromagnet (25). The input end of the PLC controller (12) is electrically connected to the output end of the infrared rangefinder (14) and the pressure sensor (16).

Images