A high-precision bending machine

Abstract

This utility model relates to the field of bending machine technology, specifically disclosing a high-precision bending machine, including a processing table and a support frame mounted on the processing table. A fixed frame is provided on the top of the support frame, and a bending part for bending the steel pipe body is provided on the support frame. The bending part includes a bearing plate slidably connected to the support frame, and abutment rods for abutting the steel pipe body are provided on both sides of the bearing plate. The bending part also includes abutment blocks mounted on the fixed frame, and the steel pipe body is installed between the abutment rods and the abutment blocks. A power unit for driving the mounting frame to slide vertically is provided on the processing table. The abutment rods on both sides and the abutment blocks on the fixed frame ensure that the steel pipe body is evenly abutted during the bending process, avoiding the uneven force caused by the traditional single-point contact bending method, thereby effectively improving the accuracy of the steel pipe bending angle and ensuring that the bent steel pipe can meet higher precision requirements.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a high-precision bending machine. Background Technology

[0002] Steel pipes, as an important engineering structural material and fluid transport carrier, are widely used in construction, machinery manufacturing, and many other fields due to their excellent mechanical properties, ease of processing, and relative economy. In practical applications, steel pipes often need to be bent into various specific angles and shapes to meet the requirements of structural connections, spatial layout, fluid guidance, or aesthetic design. Therefore, steel pipe bending technology and equipment, such as steel pipe bending machines, have become indispensable key equipment in modern industrial production.

[0003] In the prior art, there is a Chinese patent with authorization announcement number CN216801236U entitled "A High-Precision Steel Pipe Bending Machine". The patent discloses a high-precision steel pipe bending machine. A bending rod is movably arranged on the upper surface of the worktable. A pad is fixedly connected to the side surface of the bending rod. A steel pipe is placed on the upper surface of the pad. A steel plate is fixedly connected to the output end of the hydraulic device. A pin is movably inserted into the inner wall of the pin hole. Bending modules are movably arranged on the inner walls of the first template and the second template. A positioning groove is opened on the upper surface of the worktable.

[0004] The aforementioned patent allows for the bending of two different sizes of steel pipes. The arc grooves on the side surface of the module and the side surface of the bending rod respectively fit the steel pipes of different sizes, thus satisfying the bending requirements of the steel pipes to a certain extent. While existing technologies, including the aforementioned patent, can meet the bending requirements of steel pipes, the single-point contact between the bending module and the steel pipe during the bending process can lead to uneven stress on the pipe, affecting the bending angle and thus presenting certain shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision bending machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision bending machine, comprising a processing table and a support frame mounted on the processing table, a fixed frame being provided on the top of the support frame, and a bending part for bending a steel pipe body being provided on the support frame; the bending part includes a bearing plate slidably connected to the support frame, and abutment rods for abutting the steel pipe body being provided on both sides of the bearing plate; the bending part further includes an abutment block mounted on the fixed frame, and the steel pipe body being installed between the abutment rods and the abutment block; a power unit for driving the mounting frame to slide vertically is provided on the processing table.

[0007] Furthermore, mounting brackets are fixedly connected to both sides of the bearing plate, and the abutment rods on both sides are respectively installed between the two mounting brackets.

[0008] Furthermore, the fixing frame is provided with a connecting block, which is connected to the abutment block through a snap-fit ​​unit.

[0009] Furthermore, the snap-fit ​​unit includes a snap-fit ​​block fixedly connected to the abutment block, and the connecting block has a snap-fit ​​groove adapted to the snap-fit ​​block, and the snap-fit ​​block is slidably connected to the snap-fit ​​groove; the connecting block is provided with an abutment portion.

[0010] Furthermore, the abutting part includes a sector plate, which is rotatably connected to the connecting block via a connecting shaft, and a torque spring is also provided between the connecting shaft and the connecting block. The elastic force of the torque spring drives the sector plate to seal the slot.

[0011] Furthermore, the power unit includes a cylinder, which is mounted on the machining table via an adjustment mechanism, and the cylinder output end is connected to the support plate via a connecting rod assembly.

[0012] Furthermore, the adjustment mechanism includes a sliding plate mounted on the processing table, the sliding plate being connected to the cylinder via a sliding frame, and a guide rail being provided on the processing table, the sliding plate being slidably connected to the guide rail, and an adjustment part being provided on the processing table for driving the sliding plate to slide on the guide rail.

[0013] Furthermore, the abutment block is provided with an angle groove that matches the steel pipe body.

[0014] Furthermore, connecting plates are provided on both sides of the support frame, and the bearing plate is slidably connected to the connecting plates through a slide rail unit.

[0015] Furthermore, the slide rail unit includes multiple mounting blocks fixedly connected to the support plate. Each mounting block is provided with multiple sets of rollers, and guide protrusions are provided on both sides of the connecting plate. Multiple rollers on each side are respectively engaged with the corresponding guide protrusions.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: This high-precision bending machine, through the cooperation between the fixed frame, the bearing plate, the abutment rod, and the abutment block, and by setting the abutment rods on both sides of the bearing plate and the abutment block on the fixed frame, ensures that the steel pipe body is evenly abutted during the bending process. This avoids the uneven force caused by the traditional single-point contact bending method, thereby effectively improving the accuracy of the bending angle of the steel pipe and ensuring that the bent steel pipe can meet higher precision requirements. It is suitable for engineering and product manufacturing with strict standards for bending accuracy. The uniform force bending method reduces quality problems such as deformation and cracks caused by excessive local stress during the bending process of the steel pipe, ensuring the integrity and mechanical properties of the steel pipe, extending the service life of the steel pipe, and reducing the maintenance and replacement costs caused by quality problems. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 This is a partial structural diagram of the cylinder and adjusting mechanism provided in an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the steel pipe installed at the bending section provided in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram from another perspective showing the installation of a steel pipe at a bend in an embodiment of the present invention.

[0022] Figure 5 A schematic diagram of the bearing plate structure provided in an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the bearing plate from another perspective provided in an embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of the exploded state structure of the snap-fit ​​unit provided in an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the contact state between the slide rail and the guide protrusion provided in an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Processing table; 2. Support frame; 3. Bearing plate; 31. Mounting frame; 32. Abutting rod; 4. Fixing frame; 5. Connecting block; 51. Slot; 52. Locking block; 53. Abutting part; 6. Abutting block; 61. Angle groove; 7. Linkage assembly; 8. Cylinder; 9. Steel pipe body; 10. Slide rail unit; 101. Mounting block; 102. Roller; 11. Connecting plate; 111. Guide protrusion; 12. Sliding plate; 13. Sliding frame; 14. Adjustment part. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 scope of protection of the present utility model. The present utility model provides a technical solution: a high-precision bending machine, including a processing table 1 and a support frame 2 installed on the processing table 1. A fixed frame 4 is provided on the top of the support frame 2, and a bending part for bending a steel pipe body 9 is provided on the support frame 2; the bending part includes a bearing plate 3 slidably connected to the support frame 2, and abutment rods 32 for abutting the steel pipe body 9 are provided on both sides of the bearing plate 3; the bending part also includes an abutment block 6 installed on the fixed frame 4, and the steel pipe body 9 is installed between the abutment rods 32 and the abutment block 6; a power unit for driving the mounting frame 31 to slide vertically is provided on the processing table 1.

[0028] Specifically, this high-precision bending machine includes a processing table 1, which serves as the basic structure of the entire bending machine, used to install and support other components. The processing table 1 can be made of high-strength steel, possessing sufficient rigidity and stability to withstand the forces generated during bending. It also includes a support frame 2 mounted on the processing table 1. The support frame 2 can be a frame structure, welded from multiple steel sections, possessing high strength and stability. Its height can be designed according to bending requirements to meet the bending requirements of steel pipes of different sizes. A fixing frame 4 is provided on the top of the support frame 2, and a bending section for bending the steel pipe body 9 is provided on the support frame 2. The bending section includes a bearing plate 3 slidably connected to the support frame 2. The bearing plate 3 can be made of steel plate, and its shape is adapted to the sliding track of the support frame 2 to achieve smooth sliding. Mounting brackets 31 are provided on both sides of the bearing plate 3 for mounting abutment rods 32, which are installed on both sides of the bearing plate 3 to abut against the steel pipe body 9. The abutment rod 32 can be made of cylindrical steel, and its length and diameter can be adjusted according to the size of the steel pipe to ensure good contact with the steel pipe body 9. The bending part also includes an abutment block 6 installed on the fixing frame 4, which, together with the abutment rod 32, clamps the steel pipe body 9. The steel pipe body 9 is installed between the abutment rod 32 and the abutment block 6. The processing table 1 is provided with a power unit for driving the mounting frame 31 to slide vertically, thereby realizing the bending action. Therefore, in use, this high-precision bending machine drives the bearing plate 3 upward to a predetermined position via the power unit. Then, the steel pipe body 9 is installed between the abutment rod 32 and the abutment block 6. Next, the power unit drives the bearing plate 3 upward again. At this moment, the abutment blocks 6 on both sides of the bearing plate 3 contact the steel pipe, so that the steel pipe body 9 can be evenly abutted during the bending process. This avoids the uneven force caused by the traditional single-point contact bending method, thereby effectively improving the accuracy of the bending angle of the steel pipe and ensuring that the bent steel pipe can meet higher precision requirements. It is suitable for engineering and product manufacturing with strict standards for bending accuracy. The uniform force bending method reduces quality problems such as deformation and cracks caused by excessive local stress during the bending process of the steel pipe, thus meeting the work requirements.

[0029] In the embodiments provided by this utility model, mounting brackets 31 are fixedly connected to both sides of the bearing plate 3, and abutment rods 32 on both sides are respectively installed between the two mounting brackets 31. Specifically, the mounting brackets 31 are fixedly connected to both sides of the bearing plate 3 for installing the abutment rods 32. The mounting brackets 31 can be fixedly connected to the bearing plate 3 by welding or bolting to ensure its firmness. At the same time, the installation method of the abutment rods 32 can also be set according to the working environment to meet the bending requirements of the steel pipe.

[0030] In the embodiments provided by this utility model, a connecting block 5 is provided on the fixing frame 4, and the connecting block 5 is connected to the abutment block 6 through a snap-fit ​​unit. The connecting block 5 can be made of steel or cast iron, and its shape and size can be designed according to the structure of the fixing frame 4 and the abutment block 6 to achieve a good connection effect.

[0031] In the embodiments provided by this utility model, the snap-fit ​​unit includes a snap-fit ​​block 52 fixedly connected to the abutment block 6. A snap-fit ​​groove 51 adapted to the snap-fit ​​block 52 is provided on the connecting block 5. The snap-fit ​​block 52 and the snap-fit ​​groove 51 are slidably connected. This allows for quick installation and disassembly between the abutment block 6 and the connecting block 5, facilitating the replacement and maintenance of the abutment block 6. The connecting block 5 is provided with an abutment portion 53, which includes a sector-shaped plate. The sector-shaped plate is rotatably connected to the connecting block 5 via a connecting shaft. A torque spring is also provided between the connecting shaft and the connecting block 5. The spring force of the torque spring drives the sector-shaped plate to seal the snap-fit ​​groove 51. The sector plate is rotatably connected to the connecting block 5 via a connecting shaft, and a torque spring is set between the connecting shaft and the connecting block 5. The torque spring can be selected with a suitable spring force coefficient according to actual needs to ensure that the sector plate can firmly seal the slot 51 and prevent the abutment block 6 from loosening. Specifically, the spring force of the torque spring drives the sector plate to seal the slot 51, thereby achieving a firm fixation of the abutment block 6 and preventing the abutment block 6 from shaking when it is not necessary to disassemble it.

[0032] In the embodiments provided by this utility model, the power unit includes a cylinder 8, which is mounted on the processing table 1 via an adjustment mechanism. The output end of the cylinder 8 is connected to the bearing plate 3 via a connecting rod assembly 7. The connecting rod assembly 7 can adopt a multi-link structure, connected by hinges, to achieve flexible power transmission and position adjustment. By using the cylinder 8 as the power unit, the vertical sliding speed and position of the bearing plate 3 can be precisely controlled by adjusting the output pressure and stroke of the cylinder 8, thereby achieving precise adjustment of bending force and bending position, meeting the operational requirements of different specifications of steel pipes and different bending needs, and improving the versatility and adaptability of the bending machine.

[0033] In the embodiments provided by this utility model, the adjustment mechanism includes a sliding plate 12 installed on the processing table 1. The sliding plate 12 is connected to the cylinder 8 through a sliding frame 13. A guide rail is provided on the processing table 1, and the sliding plate 12 is slidably connected to the guide rail. An adjustment part 14 is provided on the processing table 1 for driving the sliding plate 12 to slide on the guide rail. The specific adjustment part 14 can be a handwheel or a lead screw, etc., to adjust the position of the cylinder 8.

[0034] In the embodiments provided by this utility model, the abutment block 6 is provided with an angle groove 61 that is compatible with the steel pipe body 9 to meet the bending requirements of the steel pipe.

[0035] In the embodiments provided by this utility model, connecting plates 11 are provided on both sides of the support frame 2, and the bearing plate 3 is slidably connected to the connecting plates 11 through the slide rail unit 10, which can further improve the stability of the bearing plate 3 when sliding vertically.

[0036] In the embodiments provided by this utility model, the slide rail unit 10 includes multiple mounting blocks 101 fixedly connected to the support plate 3. Each mounting block 101 is provided with multiple sets of rollers 102, and guide protrusions 111 are provided on both sides of the connecting plate 11. Multiple rollers 102 on each side are respectively engaged with the corresponding guide protrusions 111. When the support plate 3 slides on the support frame 2, the stability of the support plate 3 during sliding can be improved, and the effect is better.

[0037] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources, and this application is equipped with a control system for controlling the operation of the entire equipment.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. It should be noted that the electrical equipment involved in this application can be powered by a storage battery or an external power source, and the present application is provided with a control system for controlling the operation of the entire equipment.

Claims

1. A high-precision bending machine, comprising a processing table (1) and a support frame (2) mounted on the processing table (1), wherein a fixing frame (4) is provided on the top of the support frame (2), characterized in that: The support frame (2) is provided with a bending part for bending the steel pipe body (9); the bending part includes a bearing plate (3) slidably connected to the support frame (2), and abutment rods (32) for abutting the steel pipe body (9) are provided on both sides of the bearing plate (3). The bending part also includes an abutment block (6) installed on the fixing frame (4), and the steel pipe body (9) is installed between the abutment rod (32) and the abutment block (6); The processing table (1) is provided with a power unit for driving the mounting frame (31) to slide vertically.

2. The high-precision bending machine according to claim 1, characterized in that: Mounting brackets (31) are fixedly connected to both sides of the bearing plate (3), and the abutment rods (32) on both sides are respectively installed between the two mounting brackets (31).

3. A high-precision bending machine according to claim 1, characterized in that: The fixing frame (4) is provided with a connecting block (5), which is connected to the abutment block (6) through a snap-fit ​​unit.

4. A high-precision bending machine according to claim 3, characterized in that: The snap-fit ​​unit includes a snap-fit ​​block (52) fixedly connected to the abutment block (6), and the connecting block (5) has a snap-fit ​​groove (51) adapted to the snap-fit ​​block (52). The snap-fit ​​block (52) and the snap-fit ​​groove (51) are slidably connected. The connecting block (5) is provided with an abutment part (53).

5. A high-precision bending machine according to claim 4, characterized in that: The abutting part (53) includes a fan-shaped plate, which is rotatably connected to the connecting block (5) via a connecting shaft. A torque spring is also provided between the connecting shaft and the connecting block (5), and the elastic force of the torque spring drives the fan-shaped plate to seal the slot (51).

6. A high-precision bending machine according to claim 1, characterized in that: The power unit includes a cylinder (8), which is mounted on the processing table (1) by an adjustment mechanism, and the output end of the cylinder (8) is connected to the support plate (3) by a connecting rod assembly (7).

7. A high-precision bending machine according to claim 6, characterized in that: The adjustment mechanism includes a sliding plate (12) installed on the processing table (1). The sliding plate (12) is connected to the cylinder (8) through a sliding frame (13). The processing table (1) is provided with a guide rail. The sliding plate (12) is slidably connected to the guide rail. The processing table (1) is provided with an adjustment part (14) for driving the sliding plate (12) to slide on the guide rail.

8. A high-precision bending machine according to claim 1, characterized in that: The abutment block (6) is provided with an angle groove (61) that is compatible with the steel pipe body (9).

9. A high-precision bending machine according to claim 2, characterized in that: The support frame (2) is provided with connecting plates (11) on both sides, and the bearing plate (3) is slidably connected to the connecting plate (11) through the slide rail unit (10).

10. A high-precision bending machine according to claim 9, characterized in that: The slide rail unit (10) includes multiple mounting blocks (101) fixedly connected to the bearing plate (3). Each mounting block (101) is provided with multiple sets of rollers (102), and guide protrusions (111) are provided on both sides of the connecting plate (11). Multiple rollers (102) on each side are respectively engaged on the corresponding guide protrusions (111).

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