Pipe bending machine

Abstract

The utility model relates to a pipe bending machine, and belongs to the field of pipe bending machines, the pipe bending machine comprises a pipe bending machine main body, a replacement mechanism is arranged on the right side of the pipe bending machine main body, a mounting mechanism is arranged at the top end of the replacement mechanism, and the replacement mechanism comprises a mounting seat, a control frame, a servo motor, a rotating sleeve, a hydraulic push rod, an adjusting shaft and a supporting frame. According to the pipe bending machine, the replacement mechanism is arranged, a hydraulic push rod and a servo motor are used in cooperation, an adjusting shaft can be rapidly pushed to move up and down, so that bending dies of different sizes and specifications are rapidly replaced, the replacement time is shortened, the working efficiency is improved, a hydraulic system and the servo motor are used for driving, the complexity of manual operation is reduced, and the production cost is reduced. According to the bending die replacing device, the bending die replacing process is simpler and quicker, the bending die can be ensured to be accurate and in place due to the use of the proximity sensing emitter and the receiver, the machining precision of a bent pipe is improved, the downtime in production is shortened through quick bending die replacing and accurate control, and the overall production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipe bending machines, and in particular to a pipe bending machine. Background Art

[0002] A pipe bender is a mechanical device used to bend tubular materials into a desired shape. It can process pipes of various materials, such as carbon steel, stainless steel, aluminum, copper, etc., as well as pipes of different shapes, including but not limited to round, square, rectangular and special-shaped pipes. Pipe bender is widely used in construction, petroleum, chemical, shipbuilding, automobile manufacturing, furniture manufacturing, aerospace and other industries.

[0003] For example, an automatic pipe bending machine disclosed in Chinese patent announcement number (CN208230589U) includes a frame, a propulsion cylinder is arranged on one side of the top of the frame, a fixed block is fixedly connected to the piston rod of the propulsion cylinder, a core rod is horizontally fixedly connected to the fixed block, the core rod is arranged along the length direction of the frame, a support block is arranged on one side of the end of the core rod, a limiting groove is opened on the side of the support block, the end of the core rod is located in the limiting groove, the limiting block is fixedly connected to the support block, and the end of the core rod passes through the limiting block; a pushing mechanism located on one side of the support block and a pipe bending mechanism located above the end of the core rod are arranged on the top surface of the frame, and a flipping mechanism located on one side of the pipe bending mechanism is arranged on the side of the frame. The utility model has the advantages of compact structure, stable operation, high degree of automation, low labor intensity, convenient and efficient operation, and high bending efficiency.

[0004] However, in the prior art such as the above patent, there is still a problem of poor convenience in replacing the bending die of the pipe bending machine. In the prior art, the bending die is usually connected to a transmission shaft driven by a servo motor to bend the pipe material. According to the size and requirements of the processed pipe material, the bending die also has corresponding models of different sizes and specifications. During processing, it is necessary to replace the appropriate bending die according to the requirements. In the prior art, it is usually necessary to dismantle the original bending die first, and then place and install a new bending die. The back and forth operation is extremely inconvenient, which affects the efficiency of the pipe bending process. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a pipe bending machine having the advantages of high convenience in replacing the bending die, thereby solving the problem of poor convenience in replacing the bending die of the pipe bending machine.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a pipe bender, comprising a pipe bender body, a replacement mechanism is provided on the right side of the pipe bender body, and a mounting mechanism is provided on the top of the replacement mechanism;

[0007] The replacement mechanism includes a mounting seat, a control frame, a servo motor, a rotating sleeve, a hydraulic push rod, an adjusting shaft and a support frame. The mounting seat is fixed to the right side of the pipe bending machine body, the control frame is fixed to the lower surface of the mounting seat, the servo motor is fixed to the inner bottom wall of the control frame, the rotating sleeve is fixed to the outer side of the servo motor output shaft, the bottom end of the hydraulic push rod is rotatably connected to the inner bottom wall of the rotating sleeve, and the outer side of the hydraulic push rod output shaft is rotatably connected to the bottom end of the adjusting shaft, the adjusting shaft is slidably connected to the inner wall of the adjusting sleeve, and the support frame is fixed to the right side of the pipe bending machine body and is located on the outer side of the rotating sleeve.

[0008] By adopting this technical solution, a mounting mechanism is provided on the top of the replacement mechanism, so that the pipe bending machine can conveniently replace and install bending dies of different sizes, thereby improving the flexibility and adaptability of the pipe bending machine.

[0009] Furthermore, a controller is provided on the outer side of the pipe bending machine body, a rotating hole is opened on the lower surface of the support frame, and a rotating sleeve is rotatably connected to the inner wall of the rotating hole.

[0010] By adopting this technical solution, the rotating sleeve is rotatably connected to the inner wall of the rotating hole, thereby enhancing the stability and adjustment accuracy of the replacement mechanism.

[0011] Furthermore, guide rails are fixed to the inner walls on both sides of the rotating sleeve, and a limiting plate is fixed to the top of the guide rails.

[0012] By adopting this technical solution, precise guidance and positioning are provided for the adjusting shaft, the stability and reliability of the replacement mechanism are ensured, and the adjusting shaft can rotate synchronously with the rotating sleeve.

[0013] Furthermore, two sliding grooves are provided on the outer side of the adjusting shaft, and the adjusting shaft is slidably connected to the outer sides of the two guide rails through the two sliding grooves.

[0014] By adopting this technical solution, the adjustment shaft can slide stably along the guide rail, thereby improving the adjustment accuracy and the flexibility of the replacement mechanism.

[0015] Furthermore, the installation mechanism includes a support column, a support plate, a connecting shaft, a bending mold, a limiting screw sleeve, a separating sleeve and a socket sleeve, the support column is fixed to the top end of the adjusting shaft, the support plate is fixed to the upper surface of the support column, the connecting shaft is vertically fixed to the middle of the upper surface of the support plate, the bending mold is sleeved on the outside of the connecting shaft, a fixing screw hole is opened on the upper surface of the bending mold, and the limiting screw sleeve is threadedly connected to the inner wall of the fixing nut, the separating sleeve is fixed to the upper surface of the limiting screw sleeve, and the socket sleeve is fixed to the upper surface of the separating sleeve.

[0016] By adopting this technical solution, a bending mold installation method with stable structure and easy adjustment and installation is provided.

[0017] Furthermore, a receiving hole is provided on the lower surface of the bending die, and the diameter of the receiving hole is equal to the diameter of the receiving sleeve.

[0018] By adopting this technical solution, the precise fit between the bending die and the receiving sleeve is ensured, and the stability of the installation is improved.

[0019] Furthermore, a proximity sensor transmitter is provided on the right side of the pipe bending machine body, and there are no less than two bending dies, and receivers corresponding to the direction of the proximity sensor transmitter are provided on the outer sides of several bending dies.

[0020] By adopting this technical solution, automatic detection and positioning of the bending die position is achieved, the need for manual adjustment is reduced, and the automation level and accuracy of the pipe bending process are improved.

[0021] Furthermore, a connecting key is fixed on the outer side of the connecting shaft, and a key groove corresponding to the position of the connecting groove is formed on the inner wall of the bending mold.

[0022] By adopting this technical solution, a mechanical locking mechanism is provided to ensure the stability of the bending die when it rotates at high speed or is subjected to force, and to prevent the bending die from shifting or falling off.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. The pipe bending machine is equipped with a replacement mechanism. Through the use of a hydraulic push rod and a servo motor, the adjustment shaft can be quickly pushed up and down, so that bending dies of different sizes can be quickly replaced, which reduces the replacement time and improves work efficiency. The use of a hydraulic system and a servo motor drive reduces the complexity of manual operation, making the process of replacing the bending die simpler and faster. The use of proximity sensor transmitters and receivers can ensure that the bending die is accurately in place and improve the accuracy of the bending process. Through rapid replacement of the bending die and precise control, the downtime in production is reduced and the overall production efficiency is improved.

[0025] 2. The pipe bending machine is provided with an installation mechanism, which can install multiple bending dies of different sizes and specifications, thereby increasing the adaptability and flexibility of the pipe bending machine and being able to meet the processing needs of more types of pipes. The automated replacement process reduces the operator's physical labor when replacing the bending die and reduces labor intensity. Automated and mechanized operations reduce the chance of direct manual contact with dangerous parts, thereby improving the safety of the production process. Through reasonable structural layout, such as the design of support frames, rotating sleeves, guide rails, etc., the entire replacement mechanism is made more compact and stable. The entire replacement process can be automatically completed by the controller, reducing interference from human factors and improving the level of production automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of this application;

[0027] Figure 2 A schematic diagram of the replacement organization for this application;

[0028] Figure 3 A partial schematic diagram of the replacement mechanism for this application;

[0029] Figure 4 This is a schematic diagram of the installation mechanism for this application.

[0030] In the figure: 1. pipe bending machine body; 2. replacement mechanism; 21. mounting seat; 22. control frame; 23. servo motor; 24. rotating sleeve; 25. hydraulic push rod; 26. adjusting shaft; 27. support frame; 28. guide rail; 3. mounting mechanism; 31. supporting column; 32. supporting plate; 33. connecting shaft; 34. bending die; 35. limiting screw sleeve; 36. separating sleeve; 37. receiving sleeve; 38. proximity sensor transmitter; 39. receiver. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 A pipe bending machine in this embodiment includes a pipe bending machine body 1, a replacement mechanism 2 is provided on the right side of the pipe bending machine body 1, and a mounting mechanism 3 is provided on the top of the replacement mechanism 2.

[0033] See also Figures 2 to 3In order to conveniently replace and use bending dies 34 of different sizes, the replacement mechanism 2 in this embodiment includes a mounting seat 21, a control frame 22, a servo motor 23, a rotating sleeve 24, a hydraulic push rod 25, an adjusting shaft 26 and a support frame 27. The mounting seat 21 is fixed to the right side of the pipe bending machine body 1, and the control frame 22 is fixed to the lower surface of the mounting seat 21. According to the size and shape of the pipe to be processed, a bending die 34 of appropriate size and specification is selected, the servo motor 23 is fixed to the inner bottom wall of the control frame 22, and the rotating sleeve 24 is fixed to the servo motor The outer side of the output shaft of the machine 23 is fixed, the bottom end of the hydraulic push rod 25 is rotatably connected to the inner bottom wall of the rotating sleeve 24, and the outer side of the output shaft of the hydraulic push rod 25 is rotatably connected to the bottom end of the adjusting shaft 26, and the adjusting shaft 26 is slidably connected to the inner wall of the adjusting sleeve 24. The operator starts the controller on the outside of the pipe bending machine body 1 and prepares to replace the bending die 34. The controller instructs the hydraulic push rod 25 to move, pushing the adjusting shaft 26 to move up and down along the guide rail 28. The support frame 27 is fixed to the right side of the pipe bending machine body 1 and is located on the outer side of the rotating sleeve 24.

[0034] In this embodiment, a controller is provided on the outside of the pipe bending machine body 1, a rotating hole is provided on the lower surface of the support frame 27, and the rotating sleeve 24 is rotatably connected to the inner wall of the rotating hole, guide rails 28 are fixed to the inner walls on the left and right sides of the rotating sleeve 24, and a limit plate is fixed to the top of the guide rail 28. The adjusting shaft 26 is pushed by the hydraulic push rod 25 and slides along the guide rail 28 to move the bending die 34 to the corresponding position. Two sliding grooves are provided on the outside of the adjusting shaft 26, and the adjusting shaft 26 is slidably connected to the outside of the two guide rails 28 through the two sliding grooves. The adjusting shaft 26 is fixed in the current position to ensure that the bending die 34 is correctly aligned, and the servo motor 23 is started to prepare to drive the bending die 34 to perform pipe bending processing. After confirming that the bending die 34 is correctly positioned, the operator can start the pipe bending processing and the replacement process is completed.

[0035] See also Figure 4 In order to install and use multiple bending molds 34 of different specifications, the installation mechanism 3 in this embodiment includes a support column 31, a support plate 32, a connecting shaft 33, a bending mold 34, a limiting screw sleeve 35, a separating sleeve 36 and a receiving sleeve 37. The support column 31 is fixed to the top of the adjusting shaft 26, the support plate 32 is fixed to the upper surface of the support column 31, and the connecting shaft 33 is vertically fixed to the middle part of the upper surface of the support plate 32. The bending mold 34 is sleeved on the outer side of the connecting shaft 33, and the support column 31 is fixed to the top of the adjusting shaft 26 to prepare for the installation of the bending mold 34. The support plate 32 is fixed to the upper surface of the support column 31 to provide support for the connecting shaft 33. A fixing screw hole is opened on the upper surface of the bending mold 34, and the limiting screw sleeve 35 is threadedly connected to the inner wall of the fixing nut. The separating sleeve 36 is fixed to the upper surface of the limiting screw sleeve 35, and the receiving sleeve 37 is fixed to the upper surface of the separating sleeve 36.

[0036] In this embodiment, a receiving hole is provided on the lower surface of the bending die 34, and the aperture of the receiving hole is equal to the diameter of the receiving sleeve 37. The connecting shaft 33 is vertically fixed to the middle of the upper surface of the support plate 32 as the installation reference of the bending die 34. The bending die 34 is sleeved on the outer side of the connecting shaft 33 and fixed by the fixing screw hole and the limiting screw sleeve 35. A proximity sensor transmitter 38 is provided on the right side of the pipe bending machine body 1. There are no less than two bending dies 34, and the outer sides of several bending dies 34 are provided with receivers corresponding to the direction of the proximity sensor transmitter 38. 39. When the required bending die 34 moves into the sensing range of the proximity sensor transmitter 38, the receiver 39 senses the signal and confirms that the bending die 34 is in place. After sensing that it is in place, the hydraulic push rod 25 stops pushing. A connecting key is fixed on the outer side of the connecting shaft 33, and a key groove corresponding to the position of the connecting groove is opened on the inner wall of the bending die 34. Multiple bending dies 34 can be separated and fixed by a separating sleeve 36. A connecting key is fixed on the outer side of the connecting shaft 33, and a corresponding key groove is provided on the inner wall of the bending die 34. The two cooperate to ensure that the bending die 34 is correctly connected.

[0037] The working principle of the above embodiment is:

[0038] (1) When the bending dies 34 of different sizes are conveniently replaced and used, the bending dies 34 of appropriate sizes are selected according to the size and shape of the pipe to be processed. The operator starts the controller on the outside of the pipe bending machine body 1 to prepare for the replacement of the bending die 34. The controller instructs the hydraulic push rod 25 to move and push the adjustment shaft 26 to move up and down along the guide rail 28. The adjustment shaft 26 is pushed by the hydraulic push rod 25 and slides along the guide rail 28 to move the bending die 34 to the corresponding position. When the required bending die 34 moves into the sensing range of the proximity sensor transmitter 38, the receiver 39 senses the signal and confirms that the bending die 34 is in place. After sensing that it is in place, the hydraulic push rod 25 stops pushing and the adjustment shaft 26 is fixed at the current position to ensure that the bending die 34 is correctly aligned. The servo motor 23 starts and prepares to drive the bending die 34 to perform pipe bending. After confirming that the bending die 34 is correctly positioned, the operator can start the pipe bending process and the replacement process is completed.

[0039] (2) When installing and using multiple bending molds 34 of different specifications, fix the support column 31 to the top of the adjustment shaft 26 to prepare for the installation of the bending mold 34, fix the support plate 32 to the upper surface of the support column 31 to provide support for the connecting shaft 33, and vertically fix the connecting shaft 33 to the middle of the upper surface of the support plate 32 as the installation reference of the bending mold 34. Put the bending mold 34 on the outside of the connecting shaft 33 and fix it through the fixing screw hole and the limit screw sleeve 35. The multiple bending molds 34 can be separated and fixed by the separation sleeve 36. A connecting key is fixed on the outside of the connecting shaft 33, and a corresponding key groove is provided on the inner wall of the bending mold 34. The two cooperate to ensure that the bending mold 34 is correctly connected.

Claims

1. A pipe bending machine, comprising a pipe bending machine body (1), characterized in that: A replacement mechanism (2) is provided on the right side of the pipe bending machine body (1), and a mounting mechanism (3) is provided on the top of the replacement mechanism (2); The replacement mechanism (2) comprises a mounting seat (21), a control frame (22), a servo motor (23), a rotating sleeve (24), a hydraulic push rod (25), an adjustment shaft (26) and a support frame (27); the mounting seat (21) is fixed to the right side of the pipe bending machine body (1); the control frame (22) is fixed to the lower surface of the mounting seat (21); the servo motor (23) is fixed to the inner bottom wall of the control frame (22); the rotating sleeve (24) is fixed to the outer side of the output shaft of the servo motor (23); the bottom end of the hydraulic push rod (25) is rotatably connected to the inner bottom wall of the rotating sleeve (24); the outer side of the output shaft of the hydraulic push rod (25) is rotatably connected to the bottom end of the adjustment shaft (26); the adjustment shaft (26) is slidably connected to the inner wall of the adjustment sleeve (24); and the support frame (27) is fixed to the right side of the pipe bending machine body (1) and is located on the outer side of the rotating sleeve (24).

2. A pipe bending machine according to claim 1, characterized in that: A controller is provided on the outside of the pipe bending machine body (1); a rotating hole is provided on the lower surface of the support frame (27); and a rotating sleeve (24) is rotatably connected to the inner wall of the rotating hole.

3. A pipe bending machine according to claim 1, characterized in that: Guide rails (28) are fixed to the inner walls on both the left and right sides of the rotating sleeve (24), and a limit plate is fixed to the top end of the guide rails (28).

4. A pipe bending machine according to claim 1, characterized in that: Two sliding grooves are provided on the outer side of the adjustment shaft (26), and the adjustment shaft (26) is slidably connected to the outer sides of the two guide rails (28) through the two sliding grooves.

5. A pipe bending machine according to claim 1, characterized in that: The mounting mechanism (3) comprises a support column (31), a support plate (32), a connecting shaft (33), a bending die (34), a limiting screw sleeve (35), a separating sleeve (36) and a receiving sleeve (37); the support column (31) is fixed to the top end of the adjusting shaft (26); the support plate (32) is fixed to the upper surface of the support column (31); the connecting shaft (33) is vertically fixed to the middle part of the upper surface of the supporting plate (32); the bending die (34) is sleeved on the outer side of the connecting shaft (33); a fixing screw hole is provided on the upper surface of the bending die (34); the limiting screw sleeve (35) is threadedly connected to the inner wall of the fixing nut; the separating sleeve (36) is fixed to the upper surface of the limiting screw sleeve (35); and the receiving sleeve (37) is fixed to the upper surface of the separating sleeve (36).

6. A pipe bending machine according to claim 5, characterized in that: A receiving hole is provided on the lower surface of the bending die (34), and the diameter of the receiving hole is equal to the diameter of the receiving sleeve (37).

7. A pipe bending machine according to claim 5, characterized in that: A proximity sensor transmitter (38) is provided on the right side of the pipe bending machine body (1), and at least two bending dies (34) are provided, and receivers (39) corresponding to the direction of the proximity sensor transmitter (38) are provided on the outer sides of a plurality of bending dies (34).

8. A pipe bending machine according to claim 5, characterized in that: A connecting key is fixed on the outer side of the connecting shaft (33), and a key groove corresponding to the position of the connecting groove is formed on the inner wall of the bending die (34).

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