A nose bending mechanism

Abstract

A kind of head elbow mechanism, including first mounting seat, rotating platform, swing seat, heating cylinder, first mobile seat, second mobile seat, elbow seat, elbow assembly, pipe clamp assembly, pipe cutting assembly, first drive part, second drive part, third drive part, fourth drive part and cooling assembly;Rotating platform is installed in first mounting seat, swing seat is installed in the output end of rotating platform, and third drive part is used to drive swing seat swing by rotating platform;First mobile seat can be left and right movable installation in swing seat, second mobile seat can be forward and backward movable installation in first mobile seat, elbow seat is installed in second mobile seat, elbow assembly can swing installation in elbow seat, and fourth drive part is used to drive elbow assembly swing.The utility model discloses a kind of head elbow mechanism according to above-mentioned content, solve the problem that existing technology in elbow equipment cannot be adapted to different pipe diameter pipe material processing, only single plane can be realized in elbow processing, and the problems of low processing efficiency and unstable forming quality.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a pipe bending mechanism for machine heads. Background Technology

[0002] In the field of pipe processing, pipe bending is a key process for adapting pipes to different spatial shapes for assembly, and it is widely used in industries such as automotive, aerospace, home appliances, and pipeline engineering. As downstream industries continue to increase their precision requirements for pipe components, and the demand for multi-specification and multi-shape pipe bending products grows, traditional pipe bending equipment is gradually revealing problems such as poor adaptability, low processing efficiency, and unstable forming quality, making it difficult to meet the needs of modern production.

[0003] For example, when processing pipe materials of different diameters, traditional pipe bending equipment requires the entire pipe bending assembly to be disassembled and replaced. This not only requires professional operators to spend a lot of time on disassembly and calibration, resulting in prolonged equipment downtime and disruption of production continuity, but also requires the stockpiling of multiple sets of special components for different specifications of products, which significantly increases equipment procurement costs and inventory management costs. Furthermore, traditional equipment often adopts a fixed-direction pipe bending structure, which can only achieve pipe bending processing in a single plane (such as the horizontal direction or the vertical direction). Utility Model Content

[0004] The purpose of this invention is to propose a pipe bending mechanism to solve the problems of existing pipe bending equipment being unable to adapt to the processing of pipe materials of different diameters, only being able to achieve pipe bending processing in a single plane, as well as low processing efficiency and unstable forming quality.

[0005] To achieve this objective, the present invention adopts the following technical solution: A pipe bending mechanism includes a first mounting base, a rotating platform, a swing base, a heating cylinder, a first movable base, a second movable base, a pipe bending base, a pipe bending assembly, a pipe clamping assembly, a pipe cutting assembly, a first drive unit, a second drive unit, a third drive unit, a fourth drive unit, and a cooling assembly. The rotating platform is mounted on the first mounting base, and the swing seat is mounted on the output end of the rotating platform. The third driving unit drives the swing seat to swing through the rotating platform. The first movable seat is movably mounted on the swing seat and can move left and right. The first movable seat is provided with a clearance groove. The first driving unit is used to drive the first movable seat to move left and right. The second movable seat is movably mounted on the first movable seat and can move back and forth. The second driving unit is used to drive the second movable seat to move back and forth. The pipe bending seat is installed on the second movable seat, the pipe bending seat is provided with a pipe bending groove, the pipe bending assembly is swayably installed on the pipe bending seat, and the fourth driving part is used to drive the pipe bending assembly to sway. One end of the heating cylinder is mounted on the first mounting base. The heating cylinder is used to heat the pipe material passing through it. The other end of the heating cylinder passes through the swing seat and the clearance groove in sequence, and faces the end of the bend groove. The pipe clamping assembly and the pipe cutting assembly are respectively installed on the pipe bending seat. The pipe clamping assembly is located between the heating cylinder and the pipe cutting assembly, and the pipe cutting assembly is located between the pipe clamping assembly and the pipe bending groove. The cooling assembly is used to cool the pipe bending area.

[0006] Furthermore, the pipe bending assembly includes a rotating shaft, a sleeve, a protrusion, an adjusting block, and a pipe bending block; The bend seat is mounted on the top surface of the rear end of the second movable seat, one end of the rotating shaft is rotatably mounted on the bend seat, the fourth drive unit is mounted on the bottom surface of the rear end of the second movable seat, one end of the clamp is mounted on the other end of the rotating shaft, and the other end of the clamp is mounted on the output end of the fourth drive unit. The protrusion is connected to the outer periphery of the sleeve. The protrusion has multiple mounting holes, which are evenly spaced along the length of the protrusion. The adjusting block has an adjusting groove, which is installed in the mounting hole through the adjusting groove, and the adjusting block can move along the length of the adjusting groove. The bend block is installed on top of the adjusting block, and the bend block is directly opposite the bend groove.

[0007] Specifically, the clamping assembly includes a fifth driving part and a fifth clamping block; The bend seat is provided with a protrusion, the fifth drive unit is installed on the left side of the protrusion, the output end of the fifth drive unit passes through the protrusion and protrudes out from the right side of the protrusion, and the output end of the fifth drive unit is equipped with the fifth clamping block.

[0008] Preferably, the pipe cutting assembly includes a second mounting base, a second slide rail, a second slider, a connector, a cutter holder, a sixth drive unit, and a cutter; The pipe bend seat is provided with a cutter groove, the second mounting seat is mounted on the pipe bend seat, the sixth drive unit is mounted on the second mounting seat, the output end of the sixth drive unit is mounted with the cutter seat, the cutter seat is mounted with the cutter, and the cutter is directly opposite the cutter groove; The second slide rail is mounted on the second mounting base, one end of the connector is connected to the cutter seat, and the other end of the connector is equipped with the second slider, which is slidably mounted on the second slide rail.

[0009] In some embodiments, the first drive unit includes a first motor, a first lead screw, a first lead screw nut, a third slide rail, and a third slider; The first motor and the third slide rail are respectively mounted on the swing seat. The output end of the first motor is connected to the first lead screw. The first lead screw nut and the third slider are respectively mounted on the first movable seat. The first lead screw nut is movably mounted on the first lead screw, and the third slider is slidably mounted on the third slide rail.

[0010] Furthermore, the second drive unit includes a second motor, a second lead screw, a second lead screw nut, a guide rail, and a guide block; The second lead screw nut and the guide block are respectively installed on the first movable seat. One end of the second lead screw is movable back and forth and installed on the second lead screw nut. The other end of the second lead screw is connected to the second motor. The second motor and the guide rail are respectively mounted on the second movable base. The output end of the second motor is equipped with the second lead screw, and the guide rail is slidably mounted on the guide block.

[0011] Specifically, the heating cylinder includes a cylinder body, a heating coil, a heat insulation coil, insulating bakelite, heat insulation cotton, a first sleeve, and a second sleeve; The outer periphery of the rear end of the cylinder is provided with multiple through holes, which are arranged in an array along the length and circumferential direction of the cylinder. Multiple heating coils and multiple heat insulation rings are respectively fitted on the outer periphery of the rear end of the cylinder. The heat insulation ring is located between two heating coils, and insulating bakelite is fitted on the outer periphery of the heat insulation ring. The first sleeve is installed on the first mounting base, the first sleeve is fitted around the outer periphery of the front end of the cylinder, the insulation cotton is installed between the first sleeve and the cylinder, the second sleeve is fitted around the outer periphery of the plurality of insulating bakelite, and the front end of the second sleeve is connected to the rear end of the first sleeve.

[0012] Preferably, the heating cylinder further includes a discharge head, a seventh drive unit, and a seventh clamping block; The discharge head is installed at the rear end of the cylinder, the seventh drive unit is installed on the outer periphery of the discharge head, the output end of the seventh drive unit passes through the inner wall of the discharge head and is placed inside the discharge head, and the output end of the seventh drive unit is equipped with the seventh clamping block, the inner wall of the discharge head is fixedly equipped with the seventh clamping block, and the two seventh clamping blocks are arranged opposite to each other.

[0013] Compared with the prior art, one of the above technical solutions has the following beneficial effects: 1. By setting a first movable seat 3 that can move left and right and a second movable seat 4 that can move back and forth, and cooperating with the first drive unit 91 and the second drive unit 92 that drive their movement, when facing pipe materials of different diameters, the position of the first movable seat 3 can be adjusted to drive the bending seat 5 to shift, ensuring that the outer circumference of pipe materials of different diameters can accurately fit the inner wall of the bending groove 51 after being pulled out. The bending processing of multiple specifications of pipe materials can be realized without replacing the entire set of components, which greatly reduces the equipment replacement cost and improves the adaptability of the equipment to different production needs. 2. With the cooperation of the rotating platform 12 and the third drive unit 93, the third drive unit 93 can drive the swing seat 13 to swing through the rotating platform 12, thereby driving the first moving seat 3, the second moving seat 4 and the bending seat 5 to deflect synchronously, realizing the switching of the bending direction from left and right horizontal direction to up and down vertical direction and other directions. This design breaks through the limitations of traditional fixed direction bending and can process bending products with different spatial shapes. 3. Using a vortex cooler as the cooling component 10, a low-temperature airflow can be quickly sprayed into the bending area after the tube bending is completed, which accelerates the cooling and shaping of the tube material, shortens the cooling waiting time after the tube material is formed, significantly improves the overall production cycle, and timely cooling can reduce the performance degradation of the tube material caused by the long high temperature residence time, enhance the structural strength and mechanical stability of the bent tube product, and extend the service life of the product. 4. Heating the tube material through the heating cylinder 2 before bending it can improve the plastic deformation ability of the tube material, and at the same time avoid defects such as cracking and wrinkling during the bending process, ultimately ensuring the forming quality, precision and efficiency of the bent tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the head tube bending mechanism of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a pipe bending assembly according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the pipe cutting assembly according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first driving unit and the second driving unit according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the seventh driving part and the seventh clamping block according to one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the heating cylinder according to one embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a clamping assembly according to one embodiment of the present invention; The components include: first mounting base 11, rotating platform 12, swing seat 13, heating cylinder 2, cylinder body 21, through hole 211, heating coil 22, heat insulation ring 23, insulating bakelite 24, heat insulation cotton 25, first sleeve 26, second sleeve 27, discharge head 28, seventh drive unit 291, seventh clamping block 292, first moving seat 3, clearance groove 31, second moving seat 4, pipe bending seat 5, pipe bending groove 51, protrusion 52, cutting groove 53, pipe bending assembly 6, clamping sleeve 62, protrusion 63, mounting hole 631, adjusting block 64, adjusting groove 641, pipe bending block 65, and clamping assembly. Component 7, fifth drive unit 71, fifth clamping block 72, pipe cutting assembly 8, second mounting base 81, second slide rail 82, second slider 83, connector 84, cutter holder 85, sixth drive unit 86, cutter 87, first drive unit 91, first motor 911, first lead screw 912, first lead screw nut 913, third slide rail 914, third slider 915, second drive unit 92, second motor 921, second lead screw 922, second lead screw nut 923, guide rail 924, guide block 925, third drive unit 93, fourth drive unit 94, cooling assembly 10. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0017] In one embodiment of this utility model, such as Figure 1-7As shown, a pipe bending mechanism includes a first mounting base 11, a rotating platform 12, a swing seat 13, a heating cylinder 2, a first movable seat 3, a second movable seat 4, a pipe bending seat 5, a pipe bending assembly 6, a pipe clamping assembly 7, a pipe cutting assembly 8, a first driving unit 91, a second driving unit 92, a third driving unit 93, a fourth driving unit 94, and a cooling assembly 10. The rotating platform 12 is mounted on the first mounting base 11, and the swing seat 13 is mounted on the output end of the rotating platform 12. The third driving unit 93 drives the swing seat 13 to swing through the rotating platform 12. The first movable seat 3 is movably mounted on the swing seat 13 and can move left and right. The first movable seat 3 is provided with a clearance groove 31. The first driving unit 91 drives the first movable seat 3 to move left and right. The second movable seat 4 is movably mounted on the first movable seat 3 and can move back and forth. The second drive unit 92 is used to drive the second movable seat 4 to move back and forth; the pipe bending seat 5 is installed on the second movable seat 4, the pipe bending seat 5 is provided with a pipe bending groove 51, the pipe bending assembly 6 is swayably installed on the pipe bending seat 5, and the fourth drive unit 94 is used to drive the pipe bending assembly 6 to sway; one end of the heating cylinder 2 is installed on the first mounting seat 11, the heating cylinder 2 is used to heat the pipe material passing through it, and the other end of the heating cylinder 2 passes through the swing seat 13 and the clearance groove 31 in sequence, and faces the end of the pipe bending groove 51; the pipe clamping assembly 7 and the pipe cutting assembly 8 are respectively installed on the pipe bending seat 5, the pipe clamping assembly 7 is located between the heating cylinder 2 and the pipe cutting assembly 8, the pipe cutting assembly 8 is located between the pipe clamping assembly 7 and the pipe bending groove 51, and the cooling assembly 10 is used to cool the pipe bending area. In this embodiment, both the rotating platform 12 and the cooling assembly 10 are existing technologies and commercially available. The cooling assembly 10 is specifically a vortex cooler. The head bending mechanism is specifically installed on the bending machine. A mandrel conversion and conveying mechanism is provided on the front side of the head bending mechanism. This mandrel conversion and conveying mechanism is used to guide and convey the pipe material and preheat it. The heating cylinder 2, the pipe clamping assembly 7, the pipe cutting assembly 8, the first drive unit 91, the second drive unit 92, the third drive unit 93, the fourth drive unit 94, and the cooling assembly 10 are electrically connected to the bending machine's control system. During installation... The first mounting base 11 is installed on the body of the pipe bending machine, and the rotating platform 12 is installed on the first mounting base 11. The swing seat 13 is installed at the output end of the rotating platform 12. The third drive unit 93 is installed on the rotating platform 12. The rotating platform 12 has a built-in transmission structure. The output end of the third drive unit 93 is connected to the rotating platform 12. The third drive unit 93 drives the swing seat 13 to swing through the rotating platform 12. The third drive unit 93 is a motor. The first moving seat 3 is installed on the swing seat 13, and the second moving seat 4 is installed on the first moving seat 3.The pipe bending seat 5 is installed on the top surface of the end of the second movable seat 4, while the fourth drive unit 94 is installed on the bottom surface of the end of the second movable seat 4. The output end of the fourth drive unit 94 is connected to the pipe bending assembly 6. The front end of the heating cylinder 2 is fixedly installed on the first mounting base 11. The rear end of the heating cylinder 2 passes sequentially through the swing seat 13 and the clearance groove 31 of the first movable seat 3. The clearance groove 31 is an oblong groove, thereby ensuring that the first movable seat 3 will not collide with the heating cylinder 2 during movement. Specifically, the heating cylinder 2 has a mandrel inside for guiding the pipe material. The other end of the heating cylinder 2 faces the pipe bending groove 51 of the pipe bending seat 5. The pipe bending assembly 6, the pipe clamping assembly 7, and the pipe cutting assembly 8 are respectively installed on the... The tube bending seat 5 is described above. The tube cutting assembly 8 is located in front of the tube bending assembly 6, and the tube clamping assembly 7 is located in front of the tube cutting assembly 8. During operation, the tube material is sleeved on the outer periphery of the mandrel and enters the interior from the front end of the heating cylinder 2. The heating cylinder 2 heats the tube material passing through it. The tube material exits from the rear end of the heating cylinder 2 and enters the clamping end of the tube clamping assembly 7. Then, the tube clamping assembly 7 clamps the tube material. The second driving unit 92 drives the second moving seat 4 to move backward, thereby pulling the tube material to the rear end by a set length. Then, the tube clamping assembly 7 releases the tube material, and the second driving unit 92 drives the second moving seat 4 to reset. At this time, one side of the tube material is attached to the inner wall of the tube bending groove 51, and the other side of the tube material is attached to the tube bending assembly 6. The fourth drive unit 94 drives the bending assembly 6 to swing. The bending assembly 6 swings along the length of the bending groove 51 against one side of the pipe material, causing the pipe material to bend and form in accordance with the inner wall of the bending groove 51. After bending is completed, the bending assembly 6 returns to its original position, and the cooling assembly 10 sprays low-temperature airflow into the bending area to accelerate the shaping of the pipe material. Furthermore, the third drive unit 93 drives the swing seat 13 to swing through the rotating platform 12, thereby causing the swing seat 13 to drive the bending seat 5 to swing through the first moving seat 3 and the second moving seat 4, thereby changing the bending direction, for example, from bending in a horizontal direction to bending in a vertical direction. This makes it suitable for producing bending pipes with different shapes and structures. Furthermore, if it is necessary to bend pipes of different diameters... At this point, the pipe material does not match the bend groove 51, meaning that after the pipe material is pulled out, its outer circumference cannot fit against the inner wall of the bend groove 51. Therefore, the first drive unit 91 drives the first moving seat 3 to move left and right. The first moving seat 3, through the second moving seat 4, drives the bend seat 5 to move left and right, adjusting its position so that the outer circumference of the pipe material can fit against the bend groove 51 after being pulled out. This makes it suitable for producing bends of different diameters. By setting a first moving seat 3 that can move left and right and a second moving seat 4 that can move back and forth, in conjunction with the first drive unit 91 and the second drive unit 92 that drive their movement, when faced with pipe materials of different diameters, the position of the first moving seat 3 can be adjusted to cause the bend seat 5 to shift, ensuring that the outer circumference of pipe materials of different diameters can accurately fit against the inner wall of the bend groove 51 after being pulled out.This system enables bending of multiple pipe specifications without replacing the entire set of components, significantly reducing equipment replacement costs and improving the equipment's adaptability to different production needs. Furthermore, through the cooperation of the rotary platform 12 and the third drive unit 93, the third drive unit 93 can drive the swing seat 13 to swing via the rotary platform 12, thereby causing the first moving seat 3, the second moving seat 4, and the bending seat 5 to deflect synchronously. This allows for switching of the bending direction from horizontal left and right to vertical up and down, among other directions. This design breaks through the limitations of traditional fixed-direction bending, enabling the processing of bent pipe products with different spatial shapes, and it also utilizes eddy current technology. The cooler, acting as the cooling component 10, rapidly injects low-temperature airflow into the bending area after bending, accelerating the cooling and shaping of the tube material. This shortens the cooling waiting time after forming, significantly improving the overall production cycle time. Timely cooling reduces performance degradation caused by prolonged high-temperature residence time, enhances the structural strength and mechanical stability of the bent tube, and extends product lifespan. Furthermore, heating the tube material before bending using the heating cylinder 2 improves its plastic deformation capacity and prevents defects such as cracking and wrinkling during bending, ultimately ensuring the forming quality, precision, and efficiency of the bent tube.

[0018] like Figure 1-2As shown, the pipe bending assembly 6 includes a rotating shaft, a sleeve 62, a protrusion 63, an adjusting block 64, and a pipe bending block 65. The pipe bending seat 5 is mounted on the top surface of the rear end of the second movable seat 4. One end of the rotating shaft is rotatably mounted on the pipe bending seat 5. The fourth driving part 94 is mounted on the bottom surface of the rear end of the second movable seat 4. One end of the sleeve 62 is mounted on the other end of the rotating shaft, and the other end of the sleeve 62 is mounted on the output end of the fourth driving part 94. The protrusion 63 is connected to the outer periphery of the sleeve 62. The protrusion 63 has multiple mounting holes 631, which are evenly spaced along the length of the protrusion 63. The adjusting block 64 has an adjusting groove 641, which is installed in the mounting hole 631 through the adjusting groove 641, and the adjusting block 64 can move along the length of the adjusting groove 641. The pipe bending block 65 is mounted on the top of the adjusting block 64, and the pipe bending block 65 is directly opposite the pipe bending groove 51. In this embodiment, the fourth drive unit 94 is a motor. The top end of the sleeve 62 is clamped and installed on the bottom end of the rotating shaft, and the bottom end of the sleeve 62 is clamped and installed on the output end of the fourth drive unit 94. The sleeve 62 and the protrusion 63 are integrally formed. During operation, the fourth drive unit 94 drives the rotating shaft and the sleeve 62 to rotate. The sleeve 62 drives the adjusting block 64 to swing through the protrusion 63, thereby causing the bending block 65 to swing along the length direction of the bending groove 51, thus interacting with the bending pipe. The groove 51 is used to bend the pipe material. Furthermore, the protrusion 63 is provided with six mounting holes 631, and the adjusting block 64 is provided with two adjusting grooves 641. The adjusting grooves 641 are waist-shaped grooves. The adjusting block 64 is installed in the mounting holes 631 through the adjusting grooves 641 and the screw and nut structure. The adjusting block 64 can be moved and adjusted along the length direction of the adjusting grooves 641, thereby facilitating the adjustment of the distance between the bending block 65 and the bending groove 51, thus making it suitable for processing pipe materials of different diameters.

[0019] like Figure 1-3 and Figure 7As shown, the pipe clamping assembly 7 includes a fifth driving part 71 and a fifth clamping block 72; the pipe bending seat 5 is provided with a protrusion 52, the fifth driving part 71 is installed on the left side of the protrusion 52, the output end of the fifth driving part 71 passes through the protrusion 52 and protrudes from the right side of the protrusion 52, and the output end of the fifth driving part 71 is equipped with the fifth clamping block 72. In this embodiment, the right side of the protrusion 52 and the left side of the fifth clamping block 72 are respectively provided with fifth clamping grooves, which fit snugly against the outer circumference of the pipe. The fifth driving part 71 is a cylinder. During operation, the output end of the fifth driving part 71 extends and retracts, causing the fifth clamping block 72 to move away from or closer to the protrusion 52, thereby realizing the clamping and loosening of the pipe, which is convenient and quick. Preferably, the pipe clamping assembly 7 and the pipe bending seat 5 are integral matching components. If it is necessary to replace the pipe bending seat 5 with a different specification, the pipe clamping assembly 7 installed on the pipe bending seat 5 is also replaced simultaneously. This not only eliminates the need to disassemble and assemble the pipe clamping assembly 7, thus improving replacement efficiency, but also eliminates the need to adjust the position of the fifth clamping block 72.

[0020] like Figure 1-3 As shown, the pipe cutting assembly 8 includes a second mounting base 81, a second slide rail 82, a second slider 83, a connector 84, a cutter holder 85, a sixth drive unit 86, and a cutter 87; the pipe bending base 5 is provided with a cutter groove 53, the second mounting base 81 is mounted on the pipe bending base 5, the sixth drive unit 86 is mounted on the second mounting base 81, the output end of the sixth drive unit 86 is mounted with the cutter holder 85, the cutter holder 85 is mounted with the cutter 87, and the cutter 87 is directly opposite the cutter groove 53; the second slide rail 82 is mounted on the second mounting base 81, one end of the connector 84 is connected to the cutter holder 85, and the other end of the connector 84 is mounted with the second slider 83, which is slidably mounted on the second slide rail 82. In this embodiment, the cutting groove 53 is located on the rear side of the protrusion 52 of the pipe bending seat 5. The second slide rail 82 is installed on the front end face of the second mounting base 81. The sixth driving part 86 is installed on the rear end face of the second mounting base 81. The sixth driving part 86 is a cylinder. When working, the output end of the sixth driving part 86 extends and retracts. The cutting seat 85 drives the cutting blade 87 to move left and right along the length direction of the second slide rail 82 through the second slider 83, thereby realizing the cutting of the pipe material. The cutting groove 53 plays a role in avoiding air gaps, ensuring that the cutting blade 87 has sufficient air gaps when cutting, and avoiding rigid collision between the cutting blade 87 and the pipe bending seat 5 and damage.

[0021] like Figure 1 and Figure 4As shown, the first drive unit 91 includes a first motor 911, a first lead screw 912, a first lead screw nut 913, a third slide rail 914, and a third slider 915. The first motor 911 and the third slide rail 914 are respectively mounted on the swing seat 13. The output end of the first motor 911 is connected to the first lead screw 912. The first lead screw nut 913 and the third slider 915 are respectively mounted on the first movable seat 3. The first lead screw nut 913 is movably mounted on the first lead screw 912, and the third slider 915 is slidably mounted on the third slide rail 914. In this embodiment, the first motor 911 is connected to the first lead screw 912 via a coupling. The number of the third slide rail 914 and the third slider 915 are three respectively. The three third slide rails 914 are installed on the swing seat 13 from top to bottom. The third slide rails 914 are arranged parallel to the first lead screw 912, thereby ensuring the installation stability of the first moving seat 3 and the swing seat 13. During operation, the first motor 911 drives the first lead screw 912 to rotate, so that the first lead screw nut 913 drives the first moving seat 3 to move left and right along the length direction of the third slide rail 914, which is convenient and quick.

[0022] like Figure 1 and Figure 4 As shown, the second drive unit 92 includes a second motor 921, a second lead screw 922, a second lead screw nut 923, a guide rail 924, and a guide block 925; the second lead screw nut 923 and the guide block 925 are respectively mounted on the first movable seat 3, one end of the second lead screw 922 is movable back and forth and mounted on the second lead screw nut 923, and the other end of the second lead screw 922 is connected to the second motor 921; the second motor 921 and the guide rail 924 are respectively mounted on the second movable seat 4, the output end of the second motor 921 is mounted with the second lead screw 922, and the guide rail 924 is slidably mounted back and forth on the guide block 925. In this embodiment, the second motor 921 is installed inside the second movable seat 4. The output end of the second motor 921 is connected to the second lead screw 922 via a coupling. The guide rails 924 are respectively installed on the left and right sides of the second movable seat 4. The second movable seat 4 is located inside the first movable seat 3. The second lead screw nut 923 is installed inside the first movable seat 3. The guide blocks 925 are respectively installed on the left and right inner sides of the first movable seat 3. The length direction of the guide blocks 925 is parallel to the length direction of the second lead screw nut 923. The guide rails 924 are slidably installed on the guide blocks 925. During operation, the second motor 921 drives the second lead screw 922 to rotate, causing the second lead screw 922 to move back and forth along the length direction of the second lead screw nut 923. The second movable seat 4 moves back and forth along the length direction of the guide blocks 925 via the guide rails 924.

[0023] like Figure 1 and Figure 5-6 As shown, the heating cylinder 2 includes a cylinder body 21, heating coils 22, heat insulation rings 23, insulating bakelite 24, heat insulation cotton 25, a first sleeve 26, and a second sleeve 27. The outer periphery of the rear end of the cylinder body 21 has multiple through holes 211, arranged in an array along the length and circumference of the cylinder body 21. Multiple heating coils 22 and multiple heat insulation rings 23 are respectively fitted onto the outer periphery of the rear end of the cylinder body 21. The heat insulation ring 23 is located between two heating coils 22, and the outer periphery of the heat insulation ring 23 is fitted with insulating bakelite 24. The first sleeve 26 is installed on the first mounting base 11 and fitted onto the outer periphery of the front end of the cylinder body 21. The heat insulation cotton 25 is installed between the first sleeve 26 and the cylinder body 21. The second sleeve 27 is fitted onto the outer periphery of the multiple insulating bakelite 24, and the front end of the second sleeve 27 is connected to the rear end of the first sleeve 26. In this embodiment, the cylinder 21 is a steel pipe, and the heat insulation ring 23 is a ceramic heat insulation ring. Multiple through holes 211 are arrayed along the length and circumference of the cylinder 21. Multiple heating rings 22 and multiple heat insulation rings 23 are respectively fitted onto the outer periphery of the rear end of the cylinder 21, enabling rapid and uniform heat transfer to the pipe material inside the cylinder 21, avoiding localized insufficient or overheating. Simultaneously, the addition of heat insulation rings 23 between the heating rings 22 effectively reduces heat interference between adjacent heating rings 22, further ensuring temperature consistency along the circumference and axial direction of the cylinder. This uniform heating design allows the pipe material to reach the ideal plastic deformation temperature, preventing cracking during subsequent pipe bending processes. The pleats provide crucial protection and improve the quality of pipe bending. Furthermore, the heat insulation ring 23 reduces the diffusion of heat from the heating ring 22 to non-heated areas. The insulating bakelite 24 is fitted around the heat insulation ring 23 to prevent equipment leakage or electric shock to operators. The excellent heat insulation performance of the insulating bakelite 24 further blocks heat transfer. The insulation cotton 25 between the front end of the cylinder 21 and the first sleeve 26 reduces heat loss at the front end of the cylinder, ensuring that heat is concentrated on the heating section of the pipe. This multi-layered design not only reduces energy loss during the heating process and extends the service life of the heating ring 22, but also prevents the external structure of the heating cylinder from overheating, preventing operators from accidentally touching and burning themselves, and improving the safety of equipment operation.

[0024] like Figure 1 and Figure 5-6As shown, the heating cylinder 2 further includes a discharge head 28, a seventh drive unit 291, and a seventh clamping block 292; the discharge head 28 is installed at the rear end of the cylinder body 21, the seventh drive unit 291 is installed on the outer periphery of the discharge head 28, the output end of the seventh drive unit 291 passes through the inner wall of the discharge head 28 and is placed inside the discharge head 28, and the output end of the seventh drive unit 291 is equipped with the seventh clamping block 292, the inner wall of the discharge head 28 is fixedly installed with the seventh clamping block 292, and the two seventh clamping blocks 292 are arranged opposite to each other. In this embodiment, the seventh drive unit 291 is a cylinder, and the discharge head 28 is provided with two seventh clamping blocks 292, one of which is fixed inside the discharge head 28 and the other is connected to the output end of the seventh drive unit 291. The mandrel is located inside the cylinder 21 and does not extend to the discharge head 28. Therefore, the above-mentioned clamping structure is provided at the rear end of the cylinder 21 to avoid the pipe material being unable to be effectively bent after the last small section of the pipe material is removed from the mandrel and not fixed. Specifically, when the pipe material is pulled out and removed from the mandrel, the seventh drive unit 291 drives the seventh clamping block 292 to move closer to the fixed seventh clamping block 292, thereby clamping and fixing the pipe material, which is convenient for subsequent bending.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 which is defined by the claims and their equivalents.

Claims

1. A pipe bending mechanism for machine heads, characterized in that: It includes a first mounting base, a rotating platform, a swing base, a heating cylinder, a first movable base, a second movable base, a pipe bending base, a pipe bending assembly, a pipe clamping assembly, a pipe cutting assembly, a first drive unit, a second drive unit, a third drive unit, a fourth drive unit, and a cooling assembly; The rotating platform is mounted on the first mounting base, and the swing seat is mounted on the output end of the rotating platform. The third driving unit drives the swing seat to swing through the rotating platform. The first movable seat is movably mounted on the swing seat and can move left and right. The first movable seat is provided with a clearance groove. The first driving unit is used to drive the first movable seat to move left and right. The second movable seat is movably mounted on the first movable seat and can move back and forth. The second driving unit is used to drive the second movable seat to move back and forth. The pipe bending seat is installed on the second movable seat, the pipe bending seat is provided with a pipe bending groove, the pipe bending assembly is swayably installed on the pipe bending seat, and the fourth driving part is used to drive the pipe bending assembly to sway. One end of the heating cylinder is mounted on the first mounting base. The heating cylinder is used to heat the pipe material passing through it. The other end of the heating cylinder passes through the swing seat and the clearance groove in sequence, and faces the end of the bend groove. The pipe clamping assembly and the pipe cutting assembly are respectively installed on the pipe bending seat. The pipe clamping assembly is located between the heating cylinder and the pipe cutting assembly, and the pipe cutting assembly is located between the pipe clamping assembly and the pipe bending groove. The cooling assembly is used to cool the pipe bending area.

2. The head bending mechanism according to claim 1, characterized in that: The pipe bending assembly includes a rotating shaft, a sleeve, a protruding strip, an adjusting block, and a pipe bending block; The bend seat is mounted on the top surface of the rear end of the second movable seat, one end of the rotating shaft is rotatably mounted on the bend seat, the fourth drive unit is mounted on the bottom surface of the rear end of the second movable seat, one end of the clamp is mounted on the other end of the rotating shaft, and the other end of the clamp is mounted on the output end of the fourth drive unit. The protrusion is connected to the outer periphery of the sleeve. The protrusion has multiple mounting holes, which are evenly spaced along the length of the protrusion. The adjusting block has an adjusting groove, which is installed in the mounting hole through the adjusting groove, and the adjusting block can move along the length of the adjusting groove. The bend block is installed on top of the adjusting block, and the bend block is directly opposite the bend groove.

3. The head bending mechanism according to claim 1, characterized in that: The clamping assembly includes a fifth driving part and a fifth clamping block; The bend seat is provided with a protrusion, the fifth drive unit is installed on the left side of the protrusion, the output end of the fifth drive unit passes through the protrusion and protrudes out from the right side of the protrusion, and the output end of the fifth drive unit is equipped with the fifth clamping block.

4. The head bending mechanism according to claim 1, characterized in that: The tube cutting assembly includes a second mounting base, a second slide rail, a second slider, a connector, a cutter holder, a sixth drive unit, and a cutter. The pipe bend seat is provided with a cutter groove, the second mounting seat is mounted on the pipe bend seat, the sixth drive unit is mounted on the second mounting seat, the output end of the sixth drive unit is mounted with the cutter seat, the cutter seat is mounted with the cutter, and the cutter is directly opposite the cutter groove; The second slide rail is mounted on the second mounting base, one end of the connector is connected to the cutter seat, and the other end of the connector is equipped with the second slider, which is slidably mounted on the second slide rail.

5. The head bending mechanism according to claim 1, characterized in that: The first drive unit includes a first motor, a first lead screw, a first lead screw nut, a third slide rail, and a third slider; The first motor and the third slide rail are respectively mounted on the swing seat. The output end of the first motor is connected to the first lead screw. The first lead screw nut and the third slider are respectively mounted on the first movable seat. The first lead screw nut is movably mounted on the first lead screw, and the third slider is slidably mounted on the third slide rail.

6. The head bending mechanism according to claim 1, characterized in that: The second drive unit includes a second motor, a second lead screw, a second lead screw nut, a guide rail, and a guide block; The second lead screw nut and the guide block are respectively installed on the first movable seat. One end of the second lead screw is movable back and forth and installed on the second lead screw nut. The other end of the second lead screw is connected to the second motor. The second motor and the guide rail are respectively mounted on the second movable base. The output end of the second motor is equipped with the second lead screw, and the guide rail is slidably mounted on the guide block.

7. The head bending mechanism according to claim 1, characterized in that: The heating cylinder includes a cylinder body, a heating coil, a heat insulation coil, insulating bakelite, heat insulation cotton, a first sleeve, and a second sleeve; The outer periphery of the rear end of the cylinder is provided with multiple through holes, which are arranged in an array along the length and circumferential direction of the cylinder. Multiple heating coils and multiple heat insulation rings are respectively fitted on the outer periphery of the rear end of the cylinder. The heat insulation ring is located between two heating coils, and insulating bakelite is fitted on the outer periphery of the heat insulation ring. The first sleeve is installed on the first mounting base, the first sleeve is fitted around the outer periphery of the front end of the cylinder, the insulation cotton is installed between the first sleeve and the cylinder, the second sleeve is fitted around the outer periphery of the plurality of insulating bakelite, and the front end of the second sleeve is connected to the rear end of the first sleeve.

8. A pipe bending mechanism for a machine head according to claim 7, characterized in that: The heating cylinder also includes a discharge head, a seventh drive unit, and a seventh clamping block; The discharge head is installed at the rear end of the cylinder, the seventh drive unit is installed on the outer periphery of the discharge head, the output end of the seventh drive unit passes through the inner wall of the discharge head and is placed inside the discharge head, and the output end of the seventh drive unit is equipped with the seventh clamping block, the inner wall of the discharge head is fixedly equipped with the seventh clamping block, and the two seventh clamping blocks are arranged opposite to each other.

Images