A spinning forming device for super-long cylindrical parts

Abstract

The present invention relates to the field of metal parts processing technology, and discloses a spinning forming device for an extra-long cylindrical part. The spinning forming device includes a support assembly for supporting a workpiece, a spinning mechanism, and a preheating mechanism. The axis of the workpiece is parallel to a first direction, and the workpiece is rotatably mounted on the support assembly about its own axis. The spinning mechanism includes a frame movably arranged along the first direction, a spinning assembly mounted on the frame, and a first heating assembly. The spinning assembly is used to apply pressure to the workpiece in the radial direction of the workpiece, and the first heating assembly is used to heat the workpiece. The preheating mechanism includes a base located on one side of the support assembly and movably arranged along the first direction, and a second heating assembly mounted on the base. The second heating assembly is used to heat the workpiece. The spinning forming device for an extra-long cylindrical part can effectively improve the heating stability of the workpiece or mold, improve the operating environment of the staff, is suitable for industrial production, and improves production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of metal parts processing, in particular to a spinning forming device for an extra-long cylindrical part. Background Art

[0002] In the field of metal processing, heating is often required. For example, spinning of cylindrical workpieces requires heating the workpiece and mold, such as mold preheating and workpiece spinning heating. Currently, factories rely on manual heating of the workpiece or mold using heating tools to facilitate workpiece processing. However, for aluminum alloys, titanium alloys, and long pipes, the heating workload and work intensity are high, and the working environment is poor. During the heating process, due to human variability, in industrial production, there are problems such as unstable manual heating effects and poor batch production quality stability. Summary of the Invention

[0003] The purpose of the present invention is to provide a super-long cylindrical part spinning forming device, which can effectively improve the heating stability of the workpiece or mold, improve the heating effect, and can quickly spin-heat the workpiece after preheating is completed, which is beneficial to the workpiece processing. The heating work is safe and convenient, improves the operating environment of the staff, reduces the labor intensity of the staff, improves the operation safety, is very suitable for industrial production, and improves production efficiency.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A spinning forming device for an extra-long cylindrical part, comprising:

[0006] A support assembly for supporting a cylindrical workpiece and arranged along a first direction, wherein the axis of the workpiece is parallel to the first direction, and the workpiece is rotatably mounted on the support assembly around its own axis;

[0007] a spinning mechanism comprising a frame movably arranged along the first direction, and a spinning assembly and a first heating assembly mounted on the frame, the spinning assembly being arranged around the axis of the workpiece and being used to apply pressure to the workpiece in a radial direction of the workpiece, and the first heating assembly being used to heat a portion of the workpiece opposite to the spinning assembly;

[0008] The preheating mechanism includes a base located on one side of the support assembly and movably arranged along the first direction, and a second heating assembly installed on the base, the base is used to be located on one side of the workpiece, and the second heating assembly is used to heat the workpiece.

[0009] The above-mentioned extra-long cylindrical part spinning forming device can effectively improve the heating stability of the workpiece or mold, improve the heating effect, and can quickly spin-heat the workpiece after preheating is completed, which is beneficial to the workpiece processing. The heating work is safe and convenient, improves the operating environment of the staff, reduces the labor intensity of the staff, and improves the safety of the operation. It is very suitable for industrial production and improves production efficiency.

[0010] Optionally, the first heating assembly includes at least two first gas heating structures, which are arranged to be spaced apart circumferentially around the axis of the workpiece, and a flame port of each first gas heating structure faces the workpiece;

[0011] Preferably, each of the first gas heating structures comprises:

[0012] a first heating torch, the first heating torch comprising a first gas pipe and a first nozzle assembly connected to one end of the first gas pipe, the first nozzle assembly comprising at least one first nozzle, the injection port of the first nozzle constituting the flame port;

[0013] A cooling structure is provided around the first heating torch, wherein the cooling structure includes a cooling cavity, wherein at least a portion of the cooling cavity corresponds to the first gas pipe, and wherein a cooling liquid circulates in the cooling cavity.

[0014] Optionally, the first gas heating structure is installed on the frame through a connecting seat, the connecting seat is fixedly connected to the frame, and the first gas heating structure is slidably connected to the connecting seat so that the injection port of the first gas heating structure is away from or close to the workpiece in the radial direction of the workpiece.

[0015] Optionally, the spinning mechanism further comprises: two first guide rails extending along the first direction and arranged in parallel, and the frame is movably mounted on the two first guide rails along the first direction;

[0016] Optionally, the spinning mechanism also includes a first driving mechanism, which includes a first screw rod extending along the first direction, a first nut structure cooperating with the first screw rod, and a first driving assembly that is transmission-connected to the first screw rod and is used to drive the first screw rod to rotate, and the first nut structure is fixedly connected to the frame.

[0017] Optionally, the preheating mechanism further comprises a track located on one side of the support assembly and extending along the first direction, and the base is movably mounted on the track along the first direction;

[0018] Optionally, there are two tracks, the two tracks are parallel and spaced apart, the arrangement direction of the two tracks is the same as the arrangement direction of the two first guide rails, and the two tracks are located on one side of the two first guide rails; two groups of roller assemblies are provided at the bottom of the base, and in each group of roller assemblies, the roller assembly includes two rollers that are relatively arranged and correspond one-to-one to the two tracks respectively, the rollers are rotatably mounted on the bottom of the base around their own axis, and the outer peripheral surface of the roller is matched with the corresponding track and rollingly connected.

[0019] Optionally, the preheating mechanism further includes a second driving mechanism for driving the roller to rotate, and the second driving mechanism includes a transmission mechanism connected to the roller and a first power assembly connected to the transmission mechanism.

[0020] Optionally, the second heating assembly is mounted on the base via an adjustment mechanism, and the adjustment mechanism comprises:

[0021] a first adjusting assembly for adjusting the second heating assembly along a second direction, wherein the second direction is perpendicular to the arrangement direction of the two rails and the second direction is perpendicular to the first direction;

[0022] A second adjusting component is installed on the first adjusting component and is used to adjust the second heating component along a third direction, and the third direction is parallel to the arrangement direction of the two tracks.

[0023] Optionally, the first adjustment assembly includes a bearing seat, the bearing seat is located on the top side of the base away from the roller, and the bearing seat is installed on the base through a screw lifting mechanism; and / or,

[0024] The second adjustment component includes a linear module, which includes a fixed seat, a second screw rod rotatably mounted on the fixed seat around its own axis, and a second nut structure cooperating with the second screw rod, the axis of the second screw rod is parallel to the third direction; the fixed seat is provided with a second guide rail extending along the third direction, and a slider slidably connected to the second guide rail, the slider is fixedly connected to the nut structure, and the second heating component is mounted on the slider.

[0025] Optionally, the second heating assembly includes a second heating torch, the second heating torch includes a second gas pipe, a second nozzle assembly connected to one end of the second gas pipe, the second nozzle assembly includes at least one second nozzle, and the opening of the second nozzle is used to face the workpiece.

[0026] Optionally, the support assembly includes two support bases spaced apart along the first direction, the two support bases are arranged opposite to each other, and the two first guide rails are located between the two support bases; a support seat is provided on the top side of each support base, the workpiece is rotatably mounted between the two support seats around its own axis, and both ends of the workpiece are respectively connected to the two support seats;

[0027] Optionally, two third guide rails extending along the first direction and arranged in parallel are provided on the bottom side of each of the support bases, the arrangement direction of the two third guide rails is parallel to the arrangement direction of the two first guide rails, and the support base is movably mounted on the two third guide rails along the first direction;

[0028] Optionally, each of the support seats is movably mounted on the support base along the arrangement direction of the two third guide rails.

[0029] Optionally, the super-long cylindrical spinning forming device further comprises a control system, and the control system is signal-connected to the spinning mechanism and the preheating mechanism;

[0030] Optionally, the extra-long cylindrical part spinning forming device also includes a first temperature measuring device, the first temperature measuring device includes a first temperature sensor installed on the frame and used to detect the temperature of the workpiece, and the first temperature sensor is connected to the control system signal; and / or, the extra-long cylindrical part spinning forming device also includes a second temperature measuring device, the second temperature measuring device includes a second temperature sensor installed on the base and used to detect the temperature of the workpiece, and the second temperature sensor is connected to the control system signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings and the accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. Among them:

[0032] Figure 1 A schematic top view of a spinning forming device for an ultra-long cylindrical part provided by an embodiment of the present invention;

[0033] Figure 2 A schematic side view of a spinning mechanism provided in an embodiment of the present invention;

[0034] Figure 3 A schematic structural diagram of a first gas heating structure provided in an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of a partial structure of a support assembly provided by an embodiment of the present invention;

[0036] Figure 5 A schematic structural diagram of a preheating mechanism provided in an embodiment of the present invention;

[0037] Figure 6 A schematic side view of a preheating mechanism provided in an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of a linear module provided by an embodiment of the present invention:

[0039] Figure 8 A schematic structural diagram of a second heating torch provided in an embodiment of the present invention.

[0040] Icons: 1-support assembly; 2-spinning mechanism; 3-preheating mechanism; 4-workpiece; 11-support base; 12-support seat; 13-third guide rail; 21-frame; 22-spinning assembly; 23-first heating assembly; 24-first guide rail; 31-base; 32-second heating assembly; 33-rail; 34-first adjustment assembly; 35-second adjustment assembly; 221-spinning structure; 231-first gas heating structure; 232-connecting seat; 311-roller; 3 21-second heating torch; 341-supporting seat; 342-screw lifting mechanism; 351-linear module; 2311-first heating torch; 2312-cooling structure; 2311a-first gas pipe; 2311b-first nozzle; 3211-second gas pipe; 3212-second nozzle; 3213-injection pipe; 3511-fixed seat; 3512-second screw; 3513-second guide rail; 3514-slider; 3515-connecting plate; 3516-motor. DETAILED DESCRIPTION

[0041] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present invention and is not intended to limit the present invention. Indeed, it will be apparent to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompasses such modifications and variations as come within the scope of the appended claims and their equivalents.

[0042] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] like Figure 1 and Figure 2 As shown, the present invention provides an ultra-long cylindrical workpiece spinning device for processing long cylindrical workpieces, particularly ultra-long cylindrical workpieces. The device can process cylindrical workpieces with a length of 1 meter or greater, such as workpieces of 1.2 meters, 1.5 meters, 2 meters, 2.7 meters, 3 meters, 3.5 meters, or 4 meters, or even workpieces of 5 meters or 6 meters. For ease of explanation, this embodiment illustrates the ultra-long cylindrical workpiece spinning device in its working installation state, with the first and third directions being parallel to the horizontal plane, and the second direction being vertical. Specifically, the super-long cylindrical part spinning forming device of this embodiment includes: a support assembly 1, a spinning mechanism 2 and a preheating mechanism 3, the support assembly 1 is used to support the cylindrical workpiece 4 and is arranged along a first direction, the axis of the workpiece 4 is extended along the first direction, and the workpiece 4 can be rotatably mounted on the support assembly 1 around its own axis; the spinning mechanism 2 includes a frame 21 movably arranged along the first direction, and a spinning assembly 22 and a first heating assembly 23 mounted on the frame 21, the spinning assembly 22 is used to be arranged circumferentially around the axis of the workpiece, and the spinning assembly 22 is used to apply heat to the workpiece in the radial direction of the workpiece. Apply pressure to extrude the workpiece so that the workpiece is extruded and formed. The first heating component 23 is used to heat the part of the workpiece opposite to the spinning component 22. The heating can be performed during the spinning process of the workpiece, or the spinning process can be performed after heating, so that the first heating component 23 can cooperate with the spinning work to heat the processing part of the workpiece; the preheating mechanism 3 includes a base 31 located on one side of the support component 1 and movably arranged along the first direction, and a second heating component 32 installed on the base 31. The base 31 is used to be located on one side of the workpiece, and the second heating component 32 is used to heat the workpiece.

[0044] When the above-mentioned super-long cylindrical part spinning forming device is used to heat the cylindrical workpiece, the workpiece can be installed on the support assembly 1. Specifically, the mold is first installed on the support assembly 1, and the workpiece is installed on the support assembly 1 through the mold, wherein the mold can be a columnar part, and the mold is rotatably installed on the support mold around its own axis. The workpiece is sleeved on the outside of the mold, and the workpiece and the mold are fixed; the base 31 is located beside the workpiece and can move along the first direction. The second heating component 32 can move back and forth in the first direction with the base 31. The second heating component 32 is on one side of the workpiece and can heat the workpiece or the mold. The mold can be preheated before the workpiece is installed on the mold. For example, The temperature range of the heated mold can reach 80℃~350℃. After the mold is heated to the preset preheating temperature, the second heating component 32 stops heating and the workpiece can be installed. After the workpiece is installed, the preheating mechanism can be used to preheat the workpiece first. Then, the spinning mechanism 2 starts from one end of the workpiece, and the first heating component 23 can quickly heat the workpiece. For example, the temperature range of the workpiece spinning heating can reach 350℃~750℃. After the workpiece is heated to the preset temperature, the spinning component 22 can spin the workpiece. Since the first heating component 23 and the spinning component 22 are both installed on the frame 21, the frame 21 moves along the first direction, which can be used on the workpiece. The workpiece is processed in sections in the extension direction of the axis of the workpiece, and each section of the workpiece is heated and spun, which is very convenient. During the heating and spinning process, the first heating component 23 is installed on the frame 21, and the frame 21 can move in the first direction. When it moves to a certain spinning position of the workpiece, it can stop and firmly support the processing part of the workpiece. The first heating component 23 is stably located at the heating position, and the relative position of the first heating component 23 and the workpiece will not change easily during the heating process. The alignment accuracy of the heating part is high, the workpiece can be stably heated, the heating stability of the workpiece is enhanced, and the heating effect is improved. In addition, the staff only needs to monitor and observe the equipment from the side. On the other hand, for the preheating mechanism 3, the base 31 can be moved along the first direction beside the mold, and the second heating component 32 can be stably moved along the first direction on the base 31. The heating distance relative to the mold is also relatively stable, which improves the heating stability, improves the preheating effect, and also eliminates the need for manual holding of the heating tool, improves the operating environment of the staff, improves the work safety of the staff, reduces the work intensity of the staff, improves the work efficiency, and thus improves production efficiency.

[0045] Therefore, the above-mentioned extra-long cylindrical part spinning forming device can effectively improve the heating stability of the workpiece or mold, improve the heating effect, and the workpiece can be quickly spun and heated after preheating is completed, which is beneficial to the workpiece processing, and the heating work is safe and convenient, improves the operating environment of the staff, reduces the labor intensity of the staff, and improves the safety of the operation. It is very suitable for industrial production and improves production efficiency.

[0046] In one possible implementation, Figure 2 As shown, the first heating assembly 23 includes at least two first gas heating structures 231, which are spaced circumferentially around the axis of the workpiece, with the flame outlet of each first gas heating structure 231 facing the workpiece. Specifically, the frame 21 is provided with a through slot for the workpiece to pass through. The axis of the workpiece is substantially parallel to the axis of the through slot, and the sidewalls of the through slot are spaced apart from the workpiece to prevent collision. The circumferential spacing of the at least two first gas heating structures 231 around the axis of the workpiece effectively enhances heating uniformity, improves heating efficiency, and enhances the heating effect.

[0047] Preferably, the number of the first gas heating structures in the first heating assembly may be two, three or four, and may be distributed according to heating requirements.

[0048] In specific implementation, combined with Figure 2 ,like Figure 3As shown, each first gas heating structure 231 may include: a first heating torch 2311 and a cooling structure 2312 surrounding the first heating torch 2311, wherein the first heating torch 2311 includes a first gas pipe 2311a, a first nozzle assembly connected to one end of the first gas pipe 2311a, and the other end of the first gas pipe is connected to a gas supply device, which provides a mixture of burning gas, air, and oxygen to the first heating torch 2311; the first nozzle assembly includes at least one first nozzle 2311b, and the injection port of the first nozzle 2311b constitutes the above-mentioned flame nozzle. Specifically, the first nozzle assembly may be provided with two first nozzles 2311b, three first nozzles 2311b, four first nozzles 2311b, or six first nozzles 2311b, and this embodiment is not limited thereto. In addition, the first nozzle assembly includes an air jet pipe, the first nozzle 2311b is installed on the air jet pipe, and each first nozzle 2311b is detachably connected to the air jet pipe, which is convenient for replacement and maintenance of the first nozzle 2311b; the first heating torch 2311 heats the workpiece, which can make the temperature of the workpiece surface reach up to 750°C. Since the temperature of the workpiece heated by the first heating torch 2311 is relatively high, a cooling structure 2312 is provided on the peripheral side of the first heating torch 2311, and a cooling cavity is provided in the cooling structure 2312. The cooling cavity at least partially corresponds to the first gas pipe, and the cooling liquid is circulated in the cooling cavity for cooling. The cavity is connected to a coolant circulation device. Specifically, the coolant circulation device may include a circulation pump, which is connected to the cooling cavity, so as to be beneficial to the circulation of coolant in the cooling cavity and ensure the cooling effect; the cooling cavity can be arranged around the first gas pipe, so as to be arranged around the first gas pipe to enhance the cooling effect, so that the temperature of the first gas pipe will not be too high, thereby ensuring the service life of the first heating torch. In addition, a part of the cooling cavity can also correspond to the jet pipe and be arranged near the jet pipe, which is beneficial to reducing the temperature of the jet pipe, thereby ensuring that the first heating torch works normally under continuous and high-frequency working conditions and extending the service life of the first heating torch.

[0049] Specifically, the coolant in the cooling chamber can be water. Using water as the coolant has low cost and good effect.

[0050] To ensure safety, a first automatic ignition system is configured in the first heating assembly. The first automatic ignition system includes an automatic ignition gun. Each first heating torch is equipped with an automatic ignition gun. The automatic ignition gun uses indirect ignition and secondary ignition, and ignites once within 5 seconds. The automatic ignition can be connected to the control system signal. The control system controls the automatic ignition gun to ignite through remote control, ensuring that the first heating torch can be properly ignited by the automatic ignition gun, ensuring ignition safety. Exemplarily, the automatic ignition gun is a high-voltage arc ignition gun that uses high-voltage arc ignition to ensure safe ignition.

[0051] In order to ensure the heating effect of the workpiece, such as Figure 2 As shown, in a possible implementation, the first gas heating structure 231 is installed on the frame 21 through the connecting seat 232, the connecting seat 232 is fixedly connected to the frame 21, and the first gas heating structure 231 is slidably connected to the connecting seat 232. The first gas heating structure 231 can be adjusted along the radial direction of the workpiece, so that the injection port of the first gas heating structure 231 can be away from or close to the workpiece in the radial direction of the workpiece. By adjusting the distance between the injection port of the first gas heating structure 231 and the outer peripheral surface of the workpiece, it can be applicable to workpieces with different wall thicknesses. For workpieces with different wall thicknesses, a suitable heating distance is selected to ensure a good heating effect.

[0052] And in order to ensure the stable connection between the first gas heating structure and the connecting seat, refer to Figure 2 As shown, a locking structure (not shown in the figure) can be provided between the first gas heating structure 231 and the connecting seat 232. When the first gas heating structure 231 is adjusted, the locking structure is unlocked, and the first gas heating structure 231 can be adjusted along the radial direction of the workpiece. When the first gas heating structure 231 is adjusted relative to the connecting seat 232, the locking structure is locked, so that the first gas heating structure 231 and the connecting seat 232 can be fixed to each other, thereby ensuring the stability of the gas heating structure on the frame 21, thereby ensuring the heating stability.

[0053] In a specific implementation, refer to Figure 2As shown, the first heating component 23 can be provided with two first gas heating structures 231; and the spinning component 22 includes three spinning structures 221 for circumferentially spaced distribution around the axis of the workpiece, each spinning structure 221 includes a mounting frame fixed to the frame 21, and a spinning wheel, the spinning wheel is rotatably mounted on the mounting frame around its own axis and movably mounted along the radial direction of the workpiece, specifically, the spinning wheel is mounted on the mounting frame through an adjusting block, wherein the adjusting block is adjustably mounted on the mounting frame along the radial direction of the workpiece, the spinning wheel is rotatably mounted on the adjusting block around its own axis, and is rotatably connected to the adjusting block, the adjusting block can adjust the distance between the workpiece and the surface of the workpiece along the radial direction of the workpiece, and when the workpiece is spun and heated, a suitable distance can be selected to heat the workpiece, which is beneficial to enhancing the heating effect. In addition, the distribution of the spinning structure 221 and the first gas heating structure 231 can be arranged so that the spinning structure 221 and the first gas heating structure 231 are alternately spaced in sequence, wherein in the circumferential arrangement direction of the spinning structure 221, each first gas heating structure 231 is located in the interval between two adjacent spinning structures 221, and there is a spinning structure 221 in the interval between the two first gas heating structures 231. Preferably, the distribution of the spinning structure 221 is set to: one directly above, two below, and the axis centers of the spinning wheels of the three spinning structures 221 can form a triangle; the two first gas heating structures 231 are located above and on both sides of the upper spinning structure 221, respectively, and the flame is sprayed obliquely downward from above toward the workpiece, which is beneficial to improving processing safety.

[0054] Furthermore, if Figure 1 As shown, the spinning mechanism further includes two first guide rails 24 extending in a first direction and arranged in parallel, and the frame 21 is movably mounted on the two first guide rails 24 along the first direction. Preferably, two slide grooves are provided at the bottom of the frame 21, and the two slide grooves correspond to and cooperate with the two first guide rails 24 respectively. Each slide groove is slidably connected to the corresponding first guide rail 24, so that the frame 21 can slide stably along the two first guide rails 24. Exemplarily, the spacing between the two first guide rails 24 can be set to 800 mm, and the two first guide rails 24 have the same length, and the length of the first guide rail 24 is set to 7000 mm.

[0055] Furthermore, the above-mentioned spinning mechanism also includes a first drive mechanism (not shown in the figure), the first drive mechanism includes a first screw extending along a first direction, a first nut structure cooperating with the first screw, and a first drive assembly connected to the first screw and used to drive the first screw to rotate, and the first nut structure is fixedly connected to the frame. The frame is connected to the first drive assembly through a screw mechanism, and the first drive assembly may include a motor. The motor drives the first screw to rotate, and the first nut structure moves along the first screw. The frame is fixedly connected to the first nut structure, and the frame will move with the first nut structure, wherein the screw mechanism transmission is stable and reliable, which is conducive to enhancing the stability of the frame movement. Preferably, the motor can be connected to the first screw through a reducer to ensure the stable rotation of the first screw. Exemplarily, the motor can be a servo motor.

[0056] In other aspects, for the setting of the preset mechanism, specifically, refer to Figure 1 ,like Figure 5 and Figure 6 As shown, the preheating mechanism 3 further includes a track 33 located on one side of the support assembly 1 and extending in a first direction. The base 31 is movably mounted on the track 33 in the first direction. More specifically, two tracks 33 are provided, which are parallel and spaced apart. The arrangement direction of the two tracks 33 is the same as the arrangement direction of the two first guide rails 24, and the two tracks 33 are located on one side of the two first guide rails 24. Two sets of roller assemblies 311 are provided at the bottom of the base 31. Each set of roller 311 assemblies includes two rollers 311 arranged opposite each other and corresponding to the two tracks 33. The rollers 311 are rotatably mounted on the bottom of the base 31 about their own axis, and the outer circumferences of the rollers 311 are engaged and rollingly connected with the corresponding tracks 33. The base 31 is engaged and connected to the tracks 33 via the rollers 311. The rolling connection between the rollers 311 and the tracks 33 reduces friction, greatly reducing the resistance to the forward movement of the base 31.

[0057] In the specific implementation, refer to Figure 6 As shown, the preheating mechanism 3 further includes a second drive mechanism for driving the roller 311 to rotate. The second drive mechanism includes a transmission mechanism connected to the roller 311 and a first power assembly connected to the transmission mechanism. The second power assembly may include a motor, and the transmission structure may include a right-angle reduction gearbox. The motor is connected to the roller 311 via the right-angle reduction gearbox, allowing the roller 311 to rotate stably, allowing the base 31 to move stably along the first direction, which is beneficial for heating stability during preheating.

[0058] For example, in the above-mentioned preheating mechanism, in order to improve the preheating efficiency, Figure 1As shown, two first heating assemblies 23 are disposed along a first direction on the base 31. Driven by the base 31, the two first heating assemblies 23 can simultaneously heat the mold, thereby improving heating efficiency during preheating. It is understood that to improve heating efficiency and rationally utilize the workpiece, multiple first heating assemblies 23 can be disposed on the base 31. Specifically, the number of first heating assemblies can be three, four, or any other number, and this embodiment is not limited thereto.

[0059] In a possible implementation, in the above-mentioned preheating mechanism, as Figure 5 、 Figure 6 As shown, the second heating assembly 32 is mounted on the base 31 via an adjustment mechanism, wherein the adjustment mechanism includes a first adjustment assembly 34 and a second adjustment assembly 35. The first adjustment assembly 34 is used to adjust the position of the second heating assembly 32 along a second direction, which is perpendicular to the arrangement direction of the two rails 33 and perpendicular to the first direction. The second adjustment assembly 35 is mounted on the first adjustment assembly 34 and is used to adjust the position of the second heating assembly 32 along a third direction, which is parallel to the arrangement direction of the two rails 33. The first adjustment assembly 34 can adjust the second heating assembly 32 along the second direction, allowing it to be raised and lowered vertically, facilitating vertical adjustment of the second heating assembly 32 and alignment with the workpiece. The second adjustment assembly 35 can adjust the second heating assembly 32 along the third direction, allowing it to move in the second direction, facilitating adjustment of the horizontal distance between the second heating assembly 32 and the workpiece, thereby adjusting the appropriate heating distance and improving the heating effect.

[0060] During the specific implementation, for the specific setting of the first adjustment component 34 and the second adjustment component 35, specifically, the above-mentioned first adjustment component 34 includes a bearing seat 341, the bearing seat 341 is located on the top side of the base 31 away from the roller 311, and the bearing seat 341 is installed on the base 31 through a screw lifting mechanism 342. The screw lifting mechanism is a standard structure with good transmission stability. The screw lifting mechanism 342 includes a shell, a lifting screw and a drive shaft. The lifting screw and the drive shaft are installed in the shell, and the lifting screw is connected to the drive shaft. The rotation of the drive shaft can drive the lifting screw to move up and down. The axis centerline of the lifting screw extends in the vertical direction. The top of the lifting screw is fixedly connected to the bearing seat 341. The lifting screw can drive the bearing seat 341 to move up and down, and the total up and down movement distance of the lifting screw is 300 mm. For example, the initial height of the bearing seat 341 can be set to 1500 mm, so the bearing seat 341 is in the initial position at the initial height. 41 can be adjusted up and down 150㎜ in the initial position, that is, the stroke of the supporting seat 341 is ±150㎜; in addition, a rotating wheel can be connected to the free end of the driving shaft, and the axis of the rotating wheel is arranged to coincide with the axis of the driving shaft, and the driving shaft can be driven to rotate by manually turning the rotating wheel; and a plurality of guide columns distributed at intervals are provided at the bottom of the supporting seat 341, and the axis of the guide columns extends in the vertical direction. A plurality of guide holes corresponding to the plurality of guide columns are provided on the base 31, and each guide column extends into the corresponding guide hole, and the guide column slides with the guide hole to play a guiding role, thereby ensuring the stability of the up and down movement of the supporting seat 341.

[0061] Specifically, the second adjustment component 35 includes a linear module 351, which includes a fixed seat 3511, a second screw rod 3512 rotatably mounted on the fixed seat 3511 around its own axis, and a second nut structure (not shown in the figure) that cooperates with the second screw rod 3512, and the axis of the second screw rod 3512 is parallel to the third direction; the fixed seat 3511 is provided with a second guide rail 3513 extending along the third direction, and a slider 3514 slidably connected to the second guide rail 3513. For example, the stroke of the slider 3514 can be 1000 mm. The slider 3514 is fixedly connected to the second nut structure, and the second heating component 32 is mounted on the slider 3514. Specifically, each second guide rail 35 13 is provided with a slider 3514, and the sliders 3514 on the two guide rails are connected together by a connecting plate 3515. The second heating component 32 can be installed on the connecting plate, and a motor 3516 is used as a power component to be connected to the second screw rod 3512 for transmission. The motor 3516 and the second screw rod 3512 can be connected by a reducer, which is beneficial to ensure the rotation stability of the second screw rod 3512. The above-mentioned screw rod mechanism has good transmission stability and high transmission accuracy, and can accurately control the horizontal distance between the second heating component 32 and the workpiece, which is beneficial to ensure the accuracy of the heating distance and improve the heating effect. After preheating is completed, the motor is reversed to drive the combustion heating structure to be retracted to one end of the mold to prevent collision during the spinning process.

[0062] In one possible embodiment, in the above-mentioned preheating mechanism 3, the second heating assembly 32 includes a second heating torch 321, the second heating torch 321 includes a second gas pipe 3211, and a second nozzle assembly connected to one end of the second gas pipe 3211. The second nozzle assembly includes at least one second nozzle 3212, and the opening of the second nozzle 3212 is used to face the workpiece, wherein the second nozzle assembly includes an air jet 3213, the air jet 3213 is connected to one end of the second gas pipe 3211, the air jet 3213 and the second gas pipe 3211 can be arranged vertically, and the second nozzle 3212 is installed on the end of the air jet 3213 away from the second gas pipe 3211. On the other hand, the length of the jet pipe can be 0.4m to 1.2m, specifically 0.5m, 0.6m or 1m, and a plurality of second nozzles 3212 can be provided, and the plurality of second nozzles 3212 are spaced apart along the extension direction of the axis of the jet pipe 3213. In addition, two jet pipes 3213 can be provided, and the two jet pipes 3213 are arranged side by side. The two jet pipes 3213 are connected by a connecting pipe, and the connecting pipe is connected to the second gas pipe 3211. Then, the two jet pipes are arranged side by side, and a plurality of second nozzles 3212 are provided on both jet pipes. When heating the workpiece or mold, the heating area can be effectively increased, and the heating efficiency and heating effect can be improved.

[0063] To ensure safety, a second automatic ignition system is configured in the second heating assembly 32. The second automatic ignition system includes an automatic ignition gun. The second heating torch 321 is equipped with an automatic ignition gun. The automatic ignition gun uses indirect ignition and secondary ignition, and ignites once within 5 seconds. The automatic ignition can be connected to the control system signal. The control system controls the automatic ignition gun to ignite through remote control, ensuring that the first heating torch 2311 can be properly ignited by the automatic ignition gun, ensuring ignition safety. Exemplarily, the automatic ignition gun is a high-voltage arc ignition gun that uses high-voltage arc ignition to ensure safe ignition.

[0064] Specifically, the other end of the second gas pipe 3211 is connected to a gas supply device for supplying a gas mixture. The gas supply device can be connected to the second gas pipe 3211 through a vent pipe. The vent pipe is a hose for easy arrangement. The gas supply device includes an integrated gas supply cabinet. The integrated gas supply cabinet includes multiple pipelines, 5 propane pipelines, 2 compressed air pipelines and 2 oxygen pipelines. The 5 propane pipelines, 2 compressed air pipelines and 2 oxygen pipelines are connected to the other end of the second gas pipe 3211 through a multi-way pipe fitting connector. Each pipeline is provided with a gas regulating valve, a pressure gauge, a branch valve and a backfire preventer. The backfire preventer includes safety equipment such as a check valve, a flame arrester, and a thermal cut-off valve to ensure the safety of each pipeline. A main pipeline is connected between the multi-way pipe fitting connector and the second gas pipe 3211, and a main valve is provided on the main pipeline.

[0065] It should be noted that the first heating assembly and the second heating assembly can share the same gas supply device, and the first gas pipe in the first heating assembly is connected to the gas supply device through a pipeline different from the second gas pipe, which can simplify the overall equipment.

[0066] In one possible embodiment, in the aforementioned spin forming apparatus for an extra-long cylindrical part, the support assembly 1 includes two support bases 11 spaced apart along a first direction. The two support bases 11 are disposed opposite each other, and two first guide rails 24 are located between the two support bases 11. A support seat 12 is disposed on the top side of each support base 11. A workpiece is rotatably mounted between the two support seats 12 about its own axis, with the two ends of the workpiece connected to the two support seats 12. The two support seats 12 are respectively connected to the two ends of the workpiece, stably supporting the workpiece. The spinning mechanism 2 is located between the two support seats 12, allowing the workpiece to be processed.

[0067] Specifically, in the support assembly 1, the bottom side of each support base 11 is provided with two third guide rails 13 extending in a first direction and arranged in parallel. The arrangement direction of the two third guide rails 13 is parallel to the arrangement direction of the two first guide rails 24. The support base 11 is movably mounted on the two third guide rails 13 along the first direction. Each support base 11 can be adjusted in position along the first direction, and the spacing between the two support bases 11 can be adjusted, thereby accommodating workpieces of different lengths and expanding the applicability of the spin forming apparatus for ultra-long cylindrical parts.

[0068] In addition, each support base 12 is movably mounted on the support base 11 along the arrangement direction of the two third guide rails 13. The support base 12 can be adjusted in the third direction so that the workpiece can be adjusted relative to the frame 21 in the third direction, so that the workpiece and the spinning structure 221 have a suitable position, and the workpiece and the spinning wheel are accurately aligned, which can help the workpiece to be well formed.

[0069] In a possible embodiment, the above-mentioned super-long cylindrical part spinning forming device also includes a control system, and the control system is signal-connected with the spinning mechanism 2 and the preheating mechanism 3. Specifically, the control system includes a control panel, and the control system can be signal-connected with the spinning component 22 and the first heating component 23. By operating on the control panel, the degree of heating of the workpiece by the first gas heating structure 231 in the first heating component 23 can be controlled; the control system is signal-connected with the second heating component 32, and by operating on the control panel, the degree of heating of the workpiece or mold by the second heating component 32 is controlled. The control system is signal-connected with the gas supply device, and the control system has a delayed air shutdown function after flameout, which first closes the solenoid valve of the gas pipeline, and then closes the solenoid valve in the air pipeline after the flame is extinguished, which can avoid the formation of carbon deposits in the heating torch and the pipeline; in addition, the control system can also be signal-connected with the second drive mechanism, and by operating on the control panel to control the rotation of the roller 311, thereby controlling the movement of the base 31; the control system is also signal-connected with the motor of the second adjustment component 35, thereby controlling the moving position of the second heating component 32 in the third direction. For example, the control system may specifically include a PLC control box with a control panel arranged outside the control box. The PLC control system operates stably, has strong reliability, strong anti-interference capability, and has comprehensive control and strong adaptability. The control panel is a liquid crystal touch panel, which is simple to operate and easy to maintain.

[0070] Specifically, in the above-mentioned ultra-long cylindrical part spinning forming device, in order to detect the temperature of the workpiece, a first temperature measuring device, a second temperature measuring device, or both a first temperature measuring device and a second temperature measuring device can be provided. More specifically, with respect to the specific setting of the first temperature measuring device, the first temperature measuring device includes a first temperature sensor mounted on the frame 21 and used to detect the temperature of the workpiece, and the first temperature sensor is connected to the control system signal. The first temperature measuring device can detect the temperature of the workpiece and send the detected first temperature signal to the control system, and the temperature information can be displayed in the display area of ​​the control panel, so that the staff can obtain the information in the display area of ​​the control panel. When the first heating component 23 heats the workpiece, the temperature of the workpiece can be monitored in real time, so that the workpiece can be spun when it reaches a preset temperature, thereby ensuring the processing quality. When the first temperature sensor detects that the workpiece has reached the preset temperature, the control system can control the first heating component 23 to stop heating according to the temperature information, so that the first heating component 23 can be automatically shut down, and the control is convenient and rapid. For example, the first temperature sensor can be an infrared temperature sensor with high detection accuracy, which is conducive to ensuring the accuracy of the workpiece temperature detection.

[0071] Furthermore, with regard to the specific setting of the second temperature measuring device, the second temperature measuring device includes a second temperature sensor installed on the base 31 and used to detect the temperature of the workpiece, and the second temperature sensor is connected to the control system signal. The second temperature measuring device can detect the temperature of the workpiece or mold, send the detected second temperature signal to the control system, and the temperature information can be displayed in the display area of ​​the control panel, and the staff can know it in the display area of ​​the control panel. Then, when the second heating component 32 heats the workpiece, the temperature of the workpiece can be monitored in real time, so that the temperature condition of the workpiece or mold during preheating can be known to ensure the quality of preheating, and when the second temperature sensor detects that the workpiece reaches a preset temperature, the control system can control the second heating component 32 to stop heating according to the temperature information, so that the second heating component 32 can be automatically shut down, and the control is convenient and rapid. Exemplarily, the second temperature sensor can be an infrared temperature sensor with high detection accuracy, which is conducive to ensuring the accuracy of workpiece temperature detection.

[0072] Preferably, the above-mentioned extra-long cylindrical part spinning forming device also includes a gas detection device, which includes a gas detector, specifically a propane gas detector. Multiple gas detectors can be set, and multiple gas detectors are distributed in the gas supply device, around the pipeline, and on the sides of the first heating component 23 and the second heating component 32 for multi-point detection, and each gas detector is independently controlled. The gas detector can detect the gas concentration in the working environment. Exemplarily, the detection concentration range of the gas detector is set to 0 greater than or equal to and less than 20%, and the detection accuracy is 1%. When the gas concentration detected by the gas detector reaches a preset upper limit, that is, reaches 20% or exceeds 20%, the gas detector sends a signal to the control system, and the control system controls the gas supply device to stop supplying gas. In addition, the control system is also connected to an alarm device, which will send an alarm signal to alert on-site staff.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spinning forming device for an extra-long cylindrical part, characterized in that: include: A support assembly for supporting a cylindrical workpiece and arranged along a first direction, wherein the axis of the workpiece is parallel to the first direction, and the workpiece is rotatably mounted on the support assembly around its own axis; a spinning mechanism comprising a frame movably arranged along the first direction, and a spinning assembly and a first heating assembly mounted on the frame, the spinning assembly being arranged around the axis of the workpiece and being used to apply pressure to the workpiece in a radial direction of the workpiece, and the first heating assembly being used to heat a portion of the workpiece opposite to the spinning assembly; a preheating mechanism, the preheating mechanism comprising a base located on one side of the support assembly and movably arranged along the first direction, and a second heating assembly mounted on the base, the base being configured to be located on one side of the workpiece, and the second heating assembly being configured to heat the workpiece; The first heating assembly includes at least two first gas heating structures, which are spaced apart circumferentially around the axis of the workpiece, and the flame port of each first gas heating structure faces the workpiece; Each of the first gas heating structures comprises: a first heating torch, the first heating torch comprising a first gas pipe and a first nozzle assembly connected to one end of the first gas pipe, the first nozzle assembly comprising at least one first nozzle, the injection port of the first nozzle constituting the flame port; A cooling structure is provided around the first heating torch, wherein the cooling structure includes a cooling cavity, wherein at least a portion of the cooling cavity corresponds to the first gas pipe, and wherein a cooling liquid circulates in the cooling cavity.

2. The spinning forming device for super-long cylindrical parts according to claim 1, characterized in that: The first gas heating structure is installed on the frame through a connecting seat, the connecting seat is fixedly connected to the frame, and the first gas heating structure is slidably connected to the connecting seat so that the injection port of the first gas heating structure moves away from or close to the workpiece in the radial direction of the workpiece.

3. The spinning forming device for super-long cylindrical parts according to claim 1, characterized in that: The spinning mechanism further includes: two first guide rails extending along the first direction and arranged in parallel, and the frame is movably mounted on the two first guide rails along the first direction.

4. The spinning forming device for super-long cylindrical parts according to claim 3, characterized in that: The spinning mechanism also includes a first driving mechanism, which includes a first screw rod extending along the first direction, a first nut structure cooperating with the first screw rod, and a first driving assembly that is transmission-connected to the first screw rod and is used to drive the first screw rod to rotate, and the first nut structure is fixedly connected to the frame.

5. The spinning forming device for super-long cylindrical parts according to claim 3, characterized in that: The preheating mechanism further includes a track located at one side of the supporting assembly and extending along the first direction, and the base is movably mounted on the track along the first direction.

6. The spinning forming device for super-long cylindrical parts according to claim 5, characterized in that: There are two tracks, which are parallel and spaced apart. The arrangement direction of the two tracks is the same as that of the two first guide rails, and the two tracks are located on one side of the two first guide rails. Two groups of roller assemblies are provided at the bottom of the base. In each group of roller assemblies, the roller assembly includes two rollers that are relatively arranged and correspond one to one with the two tracks respectively. The rollers are rotatably mounted on the bottom of the base around their own axis, and the outer peripheral surfaces of the rollers are matched with and rollingly connected to the corresponding tracks.

7. The spinning forming device for super-long cylindrical parts according to claim 6, characterized in that: The preheating mechanism further includes a second driving mechanism for driving the roller to rotate, and the second driving mechanism includes a transmission mechanism connected to the roller and a first power assembly connected to the transmission mechanism.

8. The spinning forming device for super-long cylindrical parts according to claim 6, characterized in that: The second heating assembly is mounted on the base via an adjustment mechanism, wherein the adjustment mechanism comprises: a first adjusting assembly for adjusting the second heating assembly along a second direction, wherein the second direction is perpendicular to the arrangement direction of the two rails and the second direction is perpendicular to the first direction; A second adjusting component is installed on the first adjusting component and is used to adjust the second heating component along a third direction, and the third direction is parallel to the arrangement direction of the two tracks.

9. The spinning forming device for super-long cylindrical parts according to claim 8, characterized in that: The first adjustment assembly includes a bearing seat, the bearing seat is located on the top side of the base away from the roller, and the bearing seat is installed on the base through a screw lifting mechanism; and / or, The second adjustment component includes a linear module, which includes a fixed seat, a second screw rod rotatably mounted on the fixed seat around its own axis, and a second nut structure cooperating with the second screw rod, the axis of the second screw rod is parallel to the third direction; the fixed seat is provided with a second guide rail extending along the third direction, and a slider slidably connected to the second guide rail, the slider is fixedly connected to the nut structure, and the second heating component is mounted on the slider.

10. The spinning forming device for an extra-long cylindrical part according to any one of claims 1 to 4, characterized in that: The second heating assembly includes a second heating torch, which includes a second gas pipe and a second nozzle assembly connected to one end of the second gas pipe. The second nozzle assembly includes at least one second nozzle, and the opening of the second nozzle is used to face the workpiece.

11. The spinning forming device for super-long cylindrical parts according to claim 3, characterized in that: The support assembly includes two support bases spaced apart along the first direction, the two support bases are arranged opposite to each other, and the two first guide rails are located between the two support bases; a support seat is provided on the top side of each support base, and the workpiece is rotatably installed between the two support seats around its own axis, and the two ends of the workpiece are respectively connected to the two support seats.

12. The spinning forming device for an extra-long cylindrical part according to claim 11, characterized in that: Two third guide rails extending along the first direction and arranged in parallel are provided on the bottom side of each support base. The arrangement direction of the two third guide rails is parallel to the arrangement direction of the two first guide rails. The support base is movably mounted on the two third guide rails along the first direction.

13. The spinning forming device for an extra-long cylindrical part according to claim 12, characterized in that: Each of the support seats is movably mounted on the support base along the arrangement direction of the two third guide rails.

14. The spinning forming device for an extra-long cylindrical part according to any one of claims 1 to 3, characterized in that: It also includes a control system, which is signal-connected to the spinning mechanism and the preheating mechanism.

15. The spinning forming device for an extra-long cylindrical part according to claim 14, characterized in that: The extra-long cylindrical part spinning forming device also includes a first temperature measuring device, which includes a first temperature sensor installed on the frame and used to detect the temperature of the workpiece, and the first temperature sensor is connected to the control system signal; and / or, the extra-long cylindrical part spinning forming device also includes a second temperature measuring device, which includes a second temperature sensor installed on the base and used to detect the temperature of the workpiece, and the second temperature sensor is connected to the control system signal.

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