180 results about "Tube bending" patented technology

Disclosed is a method and digital twin system for real-time monitoring and prediction of tube bending process state. By mounting gyroscopes and force sensors in tube bending devices, bending dies, pressing dies and other dies, the data of position, speed and acceleration of each die, as well as pressure and friction between each die and tube fittings can be acquired in real time. In the present disclosure, the acquisition of bending state of the tube bending device die and the tube fitting can be realized, and the real-time monitoring and prediction of bending process state can be realized, thereby improving the accuracy of tube bending device and the quality of tube bending.

The invention belongs to the technical field of metal pipe continuous bending, and particularly relates to a metal pipe continuous bending device which comprises a rack, two sets of transmission shafts are symmetrically and rotationally installed in the rack, two sets of chain wheels are symmetrically installed on the transmission shafts, the two sets of chain wheels are meshed with two sets of chains correspondingly, and a plurality of sets of pressing modules are arranged between the two sets of chains in a surrounding mode. A plurality of sets of press-fit modules are arranged on the rack, placing grooves and bending grooves are formed in the press-fit modules and communicate with each other, a bending mechanism is arranged on the rack, the press-fit modules are driven to do circular motion, each set of press-fit module can sequentially pass through a feeding point and the bending mechanism, in the metal pipe bending process, a worker can conduct feeding and discharging at the same time, and the working efficiency is improved. And the feeding and discharging time is saved, so that the metal pipe can be continuously bent, and the bending efficiency of the metal pipe is improved.

A steerable arm for use in an endoscopic surgical procedure. The steerable arm is cut from a nitinol tube to provide flexibility and elasticity by a structure formed by cutting the tube. Typically, the cut tube includes a helical coil whose annuluses contact at one lateral side of the tube and the tube bends to separate the annuluses at the other lateral side. The material from which the tube is made is capable of maintaining memory for bending. This provides bias for restoring the tube to a bent state whenever the force causing the tube to bend is removed.

The utility model relates to the technical field of tricycle production, in particular to a rectangular pipe bending and punching all-in-one machine which comprises a moving mechanism and further comprises a machining mechanism used for drilling and bending a rectangular pipe body, and the machining mechanism is fixed above the moving mechanism. By arranging the machining mechanism, when the device is used, the rectangular pipe body is placed above the placing table, the hydraulic cylinder and the second motor are started after the rectangular pipe body is fixed, the second motor operates to drive the drill bit to rotate, and the hydraulic cylinder operates to drive the drill bit to move; the two sets of drill bits moving in the opposite directions jointly cooperate to drill the left side and the right side of the rectangular pipe body, after drilling is completed, a second motor is controlled to reset, then a first motor is started, the first motor operates to drive a rotating shaft to rotate anticlockwise, the rotating shaft drives a rotating disc and a rotating rod to rotate anticlockwise, and the rotating rod rotating anticlockwise extrudes the two ends of the rectangular pipe body. The two ends of the rectangular pipe body are bent under the action of pressure.

The invention discloses a condenser pipe bending device for refrigeration equipment, and relates to the technical field of condenser pipe bending. Comprising a hydraulic pressing push rod, a hydraulic bending push rod arranged on one side of the hydraulic pressing push rod, a push rod supporting plate connected with the bottoms of the hydraulic pressing push rod and the hydraulic bending push rod, and a functional bottom table and a rotating frame which are arranged in front of the hydraulic pressing push rod and the hydraulic bending push rod. According to the device, the stirring long plate can stir the front end of the closed bottom plate so that the closed bottom plate can be separated from the bottom opening of the discharging bin, meanwhile, the stirring long plate moves to the position below the opening of the discharging bin, and then the stirring long plate and the bearing short plate are used for receiving condensation pipes falling from the upper portion; and meanwhile, after the long plate is stirred to rotate reversely, the borne condenser pipes can be discharged between the pipe body side pressing plates on one side, then automatic feeding is achieved, compared with a traditional mechanical arm mode, a simple linkage structure is adopted, the cost of the whole condenser pipe bending equipment is lower, and the bending machining efficiency of the whole condenser pipe bending equipment is greatly improved.

The invention discloses a pulse current and ultrasonic vibration combined type titanium alloy pipe auxiliary bending device and method, and belongs to the technical field of aero-engine part manufacturing. The device comprises a counter-force frame, a pipe bending driving cylinder, a first pipe bending supporting roller, a second pipe bending supporting roller, a pipe bending pressing head, a first electrode chuck, a second electrode chuck, a direct-current pulse power supply, an ultrasonic transducer and an ultrasonic generator. According to the pulse current and ultrasonic vibration combined type titanium alloy pipe auxiliary bending device and method, the pulse current auxiliary forming technology and the ultrasonic vibration residual stress removing technology are jointly introduced into bending forming of the titanium alloy pipe; the Joule heating effect and the electroplastic effect are generated in the local area where the bending deformation section of the titanium alloy pipe is located through pulse current, the overall microstructure and mechanical property deterioration of the titanium alloy pipe can be avoided, and residual stress is removed by applying ultrasonic vibration in the bending deformation process of the titanium alloy pipe. And the bending forming precision of the titanium alloy pipe is greatly improved.

The utility model relates to the technical field of foot brake bent pipe bending, and discloses a round pipe bending device for foot brake bent pipe machining, which comprises a bending assembly and a conveying assembly, the bending assembly comprises a fixed bottom plate, a driving motor is arranged at the upper end of the fixed bottom plate, the output end of the driving motor is fixedly connected with a first rotating shaft, and the first rotating shaft is fixedly connected with a second rotating shaft; a first connecting plate is arranged on the first rotating shaft, a circular bending wheel is connected to the upper end, away from the first rotating shaft, of the first connecting plate, meanwhile, a first electric telescopic rod is arranged at the upper end of the fixed bottom plate, a rack is connected to one end of the first electric telescopic rod, and a circular gear is arranged on one side of the rack; and meanwhile, the second rotating shaft is arranged in the middle of the circular gear, and the half-bending wheel is arranged on the second rotating shaft, so that the operation process is simplified, the operation difficulty is reduced, the satisfaction degree and the working efficiency of operators are improved, it is ensured that the size and the shape of the foot brake bent pipe meet the design requirements, and the quality and the consistency of products are improved.

The invention relates to the technical field of quartz tube machining and discloses a quartz tube bending device and method.The quartz tube bending device comprises a workbench, supporting legs are installed at the positions, close to the four corners, of the bottom end of the workbench, a second fixing frame is installed at the position, close to the right side, of the top end of the workbench, and a first connecting shaft is rotationally connected to the inner wall of the second fixing frame through a bearing pedestal; the outer wall of the first connecting shaft is fixedly sleeved with a V-shaped abutting roller, a cleaning component used for cleaning the V-shaped abutting roller is arranged on the second fixing frame, two sets of driving mechanisms used for bending the quartz tubes are arranged on the workbench, and the quartz tubes on the two sets of driving mechanisms can be bent in turn by arranging the two sets of driving mechanisms and a conversion component. When the quartz tube on one driving mechanism is bent, the bent quartz tube on the other driving mechanism can be disassembled, and the quartz tube to be bent can be reinstalled, so that the use continuity of the device is improved, the downtime of the device is greatly shortened, and the working efficiency of the device is improved.

The embodiment of the invention provides a quartz tank processing jig and a processing method, and relates to the technical field of quartz product processing. The quartz tank machining jig comprises an inner pipe machining jig and a bent pipe machining jig. The inner pipe machining jig comprises a first bottom plate and a first side plate. The first side plate is fixed to one side of the first bottom plate, and two first positioning grooves arranged at intervals are formed in the first bottom plate. The two first positioning grooves are formed in the direction perpendicular to the first side plate. The first positioning groove is used for placing a quartz circular plate. And a plurality of circular holes are formed in the quartz circular plate. The bent pipe machining jig comprises a second bottom plate and a second side plate. The two second side plates are arranged on the two sides of the second bottom plate respectively. A second positioning groove is formed in the top of the second side plate. An arc groove is formed in the second bottom plate. A baffle is arranged in one end of the arc groove. The machining process can be simplified, the machining efficiency is improved, the machining cost is reduced, and the high-precision machining quality is guaranteed.

The utility model discloses a construction site structural member stirrup fast labor-saving bending tool which comprises a stirrup and a bending device and further comprises a lengthened handle, the bending device comprises a round pipe bending device and a handle, one end of the handle is connected with the side face of the round pipe bending device, and the lengthened handle is installed on the handle in a telescopic mode. The circular pipe bending device is of a semi-annular structure, a convex notch is formed in the circular pipe bending device, and the circular pipe bending device is buckled on the stirrup in a grabbing mode and conducts bending through the convex notch. In addition, the circular tube bending device further comprises an abutting plate, the abutting plate is arranged at the position, corresponding to the end face, abutting against the stirrup, of the convex notch, of the outer side end face of the circular tube bending device, and an abutting curved surface is arranged on the end face, abutting against the stirrup, of the abutting plate. According to the utility model, the adjustable lengthened handle is arranged on the handle, so that when a constructor uses the device, the length of the handle can be freely adjusted according to the requirements of workers, and the force required for bending is reduced by increasing the length of the handle; and by arranging the abutting plate, the bending abutting face of the bending point of the circular pipe bending device and the stirrup is increased, slipping is not prone to occurring in the bending process, and the bending difficulty is reduced.

The utility model provides a kind of heater pipeline bending device, it is related to bending device technical field, the utility model includes pipe bender, the surface rotation of pipe bender is provided with carousel, the surface fixedly connected with pressure plate of carousel, the surface of pipe bender is fixedly connected with the center hole position of carousel and has stop lever, the installation of pipe bender has limit stop, the side of pipe bender is provided with control panel, the surface of stop lever is provided with stabilizing device, wherein stabilizing device is limited with the stabilizing of electric heating tube of bending by means of stabilizing plate and rotating ring, the stabilizing device includes two stabilizing plates, wherein two stabilizing plates are commonly installed with connecting plate, and the inner wall of two stabilizations is commonly slidably connected with mounting bracket, the utility model can better guarantee the position stability of pipe fitting when using pipe bender to carry out bending processing to heater pipeline, not prone to warping deviation, guarantee the quality and forming effect of bending, improve the practicality of pipe bender.

The invention provides a U pipe detection device and a pipe bending all-in-one machine thereof.The U pipe detection device detects a to-be-detected U pipe used for being clamped on a mold, the to-be-detected U pipe comprises a U pipe body and a welding ring arranged on the U pipe body in a sleeving mode, and the U pipe detection device comprises a supporting base fixed to one side of the mold; the detection assembly comprises a detection rod and a detection sleeve arranged outside the detection rod in a sleeving mode, the detection sleeve and the detection rod are located on the side, close to the to-be-detected U pipe, of the supporting base, an annular insertion groove used for allowing the end of a U pipe body to be inserted therein is formed between the detection sleeve and the detection rod, and the outer end face of the detection sleeve is used for abutting against the welding ring; the detection sleeve and the detection rod are movably arranged relative to the supporting base in the preset direction, so that when the end of the U pipe body is inserted into the annular insertion groove, and the outer end face of the detection sleeve abuts against the welding ring, it is indicated that the U pipe to be detected is a qualified product. The bending and sleeving all-in-one machine solves the problem that in the prior art, the maintenance cost needed by a small U pipe detection mode adopted by a bending and sleeving all-in-one machine is high.

The present invention relates to the technical field of circular tube bending, and discloses a circular tube bending device and a bending method for a seat frame, including two groups of conveying lines. A processing table is arranged on the left side of the two groups of conveying lines. Feeding components are arranged on the opposite sides of the two groups of conveying lines. A limiting component is slidably connected to the processing table, and a transmission component is arranged between the limiting component and the feeding component; A arched frame is fixedly installed on the top of the processing table, a stamping component is arranged in the middle of the arched frame, and positioning components are arranged on the front and rear sides of the arched frame. By driving the rotation of the rotating shaft by a motor and cooperating with the transmission of the sprocket and the chain, a row of rotating shafts are driven to rotate synchronously, thereby driving the rotating arm to rotate, driving the feeding plate to move along a circular path, the second clamp upwardly holds the circular tube to be bent and moves it to the left, and places it on the first clamp, so that the circular tube to be bent is intermittently transferred to the left; thus achieving the purpose of maintaining the feeding rhythm and keeping the bending efficiency of the circular tube stable.

The utility model discloses an automatic feeding and bending device for special-shaped aluminum pipes, which belongs to the technical field of bending of the special-shaped aluminum pipes and comprises a machine tool, a loading mechanism is arranged on the machine tool, a feeding mechanism is arranged on one side of the loading mechanism, and a pre-bending upper die and a forming bending upper die are arranged above the feeding mechanism. A feeding mechanism is arranged on one side of the feeding mechanism, a pre-bending upper die and a forming bending upper die are arranged on the other side of the feeding mechanism, a pre-bending lower die and a forming bending lower die are arranged below the feeding mechanism, the pre-bending upper die and the pre-bending lower die are arranged close to the feeding mechanism, and a discharging mechanism is arranged on one side, away from the feeding mechanism, of the feeding mechanism. According to the forming and bending device, the pre-bending is carried out, after the pre-bending is carried out, a pre-bending product is conveyed to the forming and bending upper die and the forming and bending lower die through the feeding mechanism to be subjected to forming and bending treatment, and after treatment, the formed and bent product is conveyed to the discharging mechanism through the feeding mechanism to be discharged, so that the potential safety hazard of manual operation can be solved, and meanwhile, the problem of employment shortage of enterprises at present can be solved.

The utility model discloses a titanium tube bending machine, and particularly relates to the technical field of titanium tube processing, which comprises a fixed seat, an L-shaped supporting table is fixedly arranged at the top end of the fixed seat, a first supporting rod is fixedly arranged at the top of one end of the L-shaped supporting table, and a fixed tube bending disc is arranged at the top end of the first supporting rod; a rotating rod is fixedly arranged on an output shaft of the motor, a rotating plate is fixedly arranged at the outer end of the rotating rod, a fixed supporting plate is fixedly arranged at the top of one end of the rotating plate, a second supporting rod is fixedly arranged at the top end of the fixed supporting plate, and a fixing column is arranged at the top end of the second supporting rod. The fixed pipe bending disc and the rotary pipe bending disc are limited and fixed to the top ends of the first supporting rod and the second supporting rod through the limiting assemblies, so that the replacement process of the fixed pipe bending disc and the rotary pipe bending disc is simple and convenient, the replacement efficiency is high, the titanium pipe bending machine can be further suitable for bending titanium pipes of different sizes, and practicability is high.

The present application relates to the technical field of tube bending, and specifically discloses a high-pressure heater heat exchange tube bending mechanism, which includes a machine body, a bending die, a clamping die, and a positioning die arranged on the machine body. A soft support bag is inserted into the tube, and the support bag is filled with magnetorheological fluid. The clamping die and the positioning die are both provided with a first electromagnet, and the first electromagnet located in the clamping die and the first electromagnet located in the positioning die are opposite in polarity to each other at one end near the tube. The bending die is made of a high magnetic resistance material, and the length of the support bag is greater than the distance between the two first electromagnets. The support bag is provided with a guide component for guiding the direction of the magnetic field, and the machine body is provided with an adjustment component for adjusting the position of the support bag. The present application provides an optimal and effective support effect for the inner wall of the tube by changing the hardness and softness of the support bag.

The utility model discloses a composite tube plate integral serial sheet type protective gas cooler, which relates to the field of protective gas cooling and comprises an outer shell, heat exchange tubes and fins. The outer shell comprises a U-shaped protective plate, side plates and a first tube plate, the pair of side plates are fixedly installed on the U-shaped protective plate, the heat exchange tubes are U-shaped heat exchange tubes and are integrally bent, the U-shaped heat exchange tubes are installed in the outer shell, integral fins are connected to the U-shaped heat exchange tubes in an expanded mode, and the first tube plate and the second tube plate are fixedly installed on the outer shell. The first tube plate is fixedly installed on the pair of side plates on the opposite side of the U-shaped protection plate to form an outer shell, the second tube plate is fixedly installed on the other side of the first tube plate through a connecting protection piece, and the water chamber is fixedly installed on the second tube plate. And a heat exchange tube is blocked, a welded junction is heated at high temperature, and water leaks into the furnace once the welded junction cracks, so that the dew point of shielding gas is increased.

The present disclosure provides a movable ball chair, including an elastic ball and a support frame, wherein the support frame includes a plurality of connecting tubes bent downward and a plurality of supporting tubes bent upward, the supporting tubes and adjacent connecting tubes are connected end to end to form a three-dimensional closed loop in a manner that the included angles between planes of the supporting tubes and the planes of the adjacent connecting tubes are the same, the bottom of each supporting tube is provided with a connecting hole, the central axis L of the connecting hole is inclined from top to bottom toward the direction where the central axis L0 of the elastic ball in the vertical direction is located, the included angle between the central axis L of the connecting hole and the straight line Y is a°, the value range of a is 0.25-5, a sleeve assembly is welded to the interior of the connecting hole, the outside diameter of the sleeve assembly is matched with the inside diameter of the connecting hole, the sleeve assembly is provided with a through hole, the sleeve assembly is connected to a moving piece through the through hole, and the through hole, the sleeve assembly and the connecting hole are arranged coaxially. Free movement of the ball chair is achieved by the movable ball chair described in the present disclosure, and the movable ball chair has the advantages of simple and stable structure.

The utility model relates to the field of machining, in particular to a thin-wall copper pipe leveling and bending machining device which comprises a machine table, a leveling device, a bending device, a feeding rotary table and a transferring device, a copper pipe is wound on the feeding rotary table, and the feeding rotary table is rotatably arranged on one side of the leveling device of the machine table. A cutting device is arranged on the side, away from the feeding rotary table, of the leveling device. A copper pipe leveling position is arranged on the leveling device, and a copper pipe bending position is arranged on the bending device; the transfer device comprises a transfer frame and a transfer push rod, a copper pipe transfer position is arranged on the transfer frame, and the transfer frame can move between the leveling device and the bending device; a transferring push rod is arranged on the copper pipe transferring position and moves in the length direction of the copper pipe transferring position. Compared with a traditional machining mode that manual auxiliary transferring is needed, the transferring frame and the transferring push rod of the transferring device are matched, the leveled copper pipe can be rapidly input into the bending device to be bent, and the machining efficiency is improved.

This invention discloses a tube bending and shaping device for children's vehicle manufacturing, comprising a machine body, on which conveying rollers and positioning seats are symmetrically arranged. The conveying rollers are used to convey the tubes. A steering cylinder for rotating the tubes is arranged between the conveying rollers and the positioning seats on the machine body. A bending rotating seat is rotatably arranged at one end of the machine body located at the positioning seat. A bending wheel for bending the tubes is fixedly arranged at one end of the bending rotating seat. A tube end limiter for clamping and fixing the tubes is arranged on one side of the bending wheel. A bending fixing block adapted to the tube end limiter is slidably arranged at the other end of the bending rotating seat. During bending, one end of the tube is clamped and fixed by the bending fixing block and the tube end limiter. Then, the bending wheel rotates with the bending rotating seat to bend the tubes. It can also be used in conjunction with the steering cylinder to bend the tubes, so that the tubes can be bent in multiple directions to meet different tube bending requirements.

The utility model discloses a pneumatic pipe bender for heat conduction pipe production, and relates to the technical field of heat conduction pipe production, the pneumatic pipe bender comprises a pipe bending assembly, the pipe bending assembly comprises a base, a pipe bending frame and two sliding blocks, the top of one end of the pipe bending frame and the tops of one ends of the two sliding blocks are fixedly provided with installation rods, and the installation rods are fixedly connected with the base. A fixing head is fixedly mounted at the top of the mounting rod, a fixing groove is formed in the outer side of the fixing head, the mounting rod is sleeved with a replacement assembly, the fixing head is sleeved with a quick-release fixing piece, the quick-release fixing piece comprises a fixing sleeve, the fixing head is sleeved with the fixing sleeve, and a pressing piece is fixedly mounted at the bottom of the fixing sleeve. A plurality of ball holes are formed in the side face of the fixing sleeve, fixing balls are arranged in the ball holes, and the outer side of the fixing sleeve is sleeved with a handle sleeve. According to the utility model, the replacement assembly can be replaced according to needs, the installation and the disassembly can be conveniently carried out, and the practical value is relatively high.

The technical scheme belongs to the technical field of oil pipe bending device and specifically relates to an oil pipe bending device and automatic bending equipment, which comprises a base, an upper pipe mechanism movably arranged on the base, the upper pipe mechanism being provided with a plurality of standby material grooves for bearing nuts and oil pipes; a pipe bending seat arranged on the base, the pipe bending seat being provided with pipe arc grooves corresponding to the standby material grooves; and a top bending mechanism movably arranged on the base, the moving direction of the top bending mechanism being perpendicular to the moving direction of the upper pipe mechanism, the top bending mechanism being rotatably provided with top bending rollers corresponding to the pipe arc grooves, the top bending rollers having concave arc grooves in the circumferential direction; after the upper pipe mechanism moves downward, the side part of the oil pipe is clamped and limited in the pipe arc groove, the top bending mechanism drives the top bending rollers to move toward one side of the pipe bending seat, the top bending rollers press and bend the oil pipe into the pipe arc groove, and through the vertical feeding positioning of the upper pipe mechanism and the horizontal feeding bending action of the top bending mechanism, automatic and continuous operation from standby material to forming is realized, and the bending precision and production efficiency are improved.

The utility model provides quick pipe bending equipment, and belongs to the technical field of pipe bending equipment. The rapid pipe bending equipment comprises a supporting platform. An air expansion shaft is arranged on the supporting platform, a bending wheel is detachably arranged on the air expansion shaft, a bending device is installed on the supporting platform, and the bending end of the bending device is located over the bending wheel. And a first limiting piece is installed on the portion, located on one side of the bending wheel, of the supporting platform, and the bending wheel is detachably arranged on the air expansion shaft, so that the bending wheel can be rapidly replaced, the bending wheels with multiple bending angles can be replaced, the pipe bending equipment can bend multiple angles, and the production requirement of the pipe bending equipment is met.

The utility model relates to the technical field of welding tools, in particular to a liravar elbow tailor-welding tool which is composed of a base, a side plate, a bent frame supporting plate, a connecting plate supporting plate, a limiting block, a positioning block, a first rapid pressing clamp and a second rapid pressing clamp. The side plate is fixed to one side of the base, the two first rapid pressing pliers are arranged on the side plate, the limiting block and the positioning block are installed on the side plate, and the positioning block is provided with a positioning structure with a through hole. The bent frame supporting plate and the connecting plate supporting plate are located on the two sides of the base respectively, a first positioning groove is formed in the bent frame supporting plate, a plurality of second positioning grooves are formed in the connecting plate supporting plate, and the second rapid pressing clamp is installed on the base. According to the tool, accurate positioning and fixing of the bent pipe part are achieved through the positioning groove and the pressing clamp structure, manual splicing errors are effectively avoided, the accuracy and consistency of the welding position are remarkably improved, and therefore the product welding quality is improved.

The utility model discloses a continuous pipe bending machine and relates to the field of pipe bending machines, the continuous pipe bending machine comprises a feeding mechanism and a discharging mechanism which are located on the two sides of a machine box, a linear conveying mechanism is fixedly connected in the machine box and comprises a conveying plate arranged at the top, and four first clamping mechanisms used for clamping pipe fittings are fixedly connected to the top of the conveying plate; four end clamping mechanisms are evenly arranged at the positions, located on the rear side of the linear conveying mechanism, in the machine box at equal intervals, and a first lifting mechanism and a second lifting mechanism are symmetrically arranged at the top and the bottom in the machine box correspondingly. A first pipe bending mechanism, a second pipe bending mechanism, a third pipe bending mechanism and a fourth pipe bending mechanism which are in one-to-one correspondence with the four end clamping mechanisms are arranged between the first lifting mechanism and the second lifting mechanism in parallel. According to the equipment, various procedures can be completed at a time, the pipe fitting can be continuously bent, the production efficiency is greatly improved, meanwhile, the equipment power is small, energy is saved, the site area is reduced, and the utilization rate of a factory workshop is high.

The utility model discloses a copper pipe bending machine which comprises a lower bottom plate, an upper bending plate is fixedly installed in the center of the upper surface of the lower bottom plate, a rotating groove is formed in one side of the upper bending plate, a rear installation plate is fixedly installed on the back face of the upper bending plate and located on one side of the rotating groove through fixing bolts, and a bending motor is fixedly installed on the rear installation plate. A bending motor is fixedly installed on the rotating groove, a bending rotating disc is fixedly installed on an output shaft of the bending motor, the bending rotating disc is arranged in the rotating groove, a catch wheel installation position is arranged in the center of the front face of the bending rotating disc, a catch wheel installation base is fixedly installed outside the catch wheel installation position through a fixing bolt, and a bending catch wheel is fixedly installed on the catch wheel installation base. The copper pipe bending device is simple in structure, low in manufacturing and later use maintenance cost, capable of effectively reducing the economic burden of enterprises, suitable for being purchased, developed and used by small and micro enterprises, adjustable in bending angle and bending radius, capable of meeting the bending production requirements of copper pipes of different sizes, capable of reducing the use limitation and suitable for being used and popularized.

This invention discloses a plastic tube shaping head structure, relating to the field of plastic tube bending technology. It has the advantage of improving cooling efficiency, thereby reducing the springback of the plastic tube. The key technical points are: a heating box for heating the plastic tube and a discharge cylinder located on one side of the heating box. A turntable is rotatably connected to the discharge cylinder via a rotating mechanism. The turntable has two semi-circular bending wheels, and a pushing mechanism for moving the two bending wheels is also provided on the turntable. A bending mechanism is also included on the turntable, cooperating with the two bending wheels. When the pushing mechanism drives the two bending wheels closer together, the bending mechanism, in cooperation with the two bending wheels, clamps the plastic tube. At this time, the bending mechanism is used to bend the clamped plastic tube through the two bending wheels. Furthermore, an air-cooling mechanism is provided on the turntable for air-cooling the opposite sides of the outer wall of the bent plastic tube.

The present invention relates to the technical field of curvature detection, and discloses a device for detecting the curvature of a supporting carbon fiber square tube. A fixed mounting block and a square tube clamp are used to fix one end of the carbon fiber square tube and leave the other end suspended. Only one inspector is required to fix the carbon fiber square tube by tightening bolts, and another inspector is required to detect the curvature of the carbon fiber square tube by a laser detector. The detection is convenient and quick, and the inspector responsible for detecting the curvature does not need to move around frequently, thereby improving the detection accuracy of the carbon fiber square tube. The corresponding fixed mounting block can be selected according to the cross-sectional size of the carbon fiber square tube to meet the fixing requirements of different carbon fiber square tubes, and the versatility is high. The outer side wall of a limiting plate and a support platform in the first horizontal direction is abutted against the square tube clamp for positioning, thereby realizing surface contact positioning and high positioning accuracy. The entire square tube clamp is conveniently fixed to the support platform through a bottom plate, thereby simplifying the weight of the entire square tube clamp.

The application discloses a mandrel structure for reducing the friction between a mandrel and the inner wall of a pipe in a pipe bending forming process. The mandrel structure comprises a control shaft, a hollow core shaft and a plurality of inflatable core balls; the hollow core shaft and the plurality of inflatable core balls are arranged outside the control shaft; each inflatable core ball mainly comprises a rolling bearing, a base section, a return spring ring, a sliding pressure disc and an arc piece; the rolling bearing and the base section are sequentially sleeved outside the control shaft from inside to outside, the sliding pressure disc is sleeved outside the control shaft and is threadedly connected with the control shaft, the return spring ring and a plurality of wedge-shaped grooves which are uniformly arranged in a circumferential direction are arranged between the base section and the sliding pressure disc, one arc piece is arranged in each wedge-shaped groove, and all the arc pieces are connected through the return spring ring. The application can be used for pipe bending forming, has a simple structure, is convenient to adjust, can relieve the problems of scratch of the inner wall of the pipe, cross-section distortion defect and core extraction difficulty in pipe forming, and improves the pipe forming quality.

The present invention discloses a combined, waste-free short tube bending machine. This machine addresses the shortcomings of current chip-free cutting and bending technologies for short tubes. The machine comprises a straightening device, a cutting device, a shaping device, a transfer device, and a bending device, wherein the straightening device, cutting device, shaping device, and bending device are sequentially arranged along the X-axis direction. The straightening device conveys the straightened tube material to the cutting device, the cutting device performs circular cutting and segmenting on the tube material, the shaping device receives the tube segments and shapes the tube ends of the tube segments, the transfer device transfers the tube segments to the bending device, and the bending device bends the tube segments. The combined, waste-free short tube bending machine transports the tubes between the various devices along the X-axis, simplifying the tube processing and transportation route. The machine eliminates the need for material collection and secondary feed conversion mechanisms, material straightening, and reloading, eliminating the secondary feeding process and cost. Furthermore, the machine reduces the probability of unexpected failures, saves time, and improves production efficiency.