29results about How to "Guaranteed straightness" patented technology

The application relates to the technical field of zirconium-niobium alloy material processing, in particular to a preparation method of a large-diameter zirconium-niobium alloy pipe for nuclear industry, which comprises the following steps: S1, mixing nuclear-grade sponge zirconium and niobium scraps, or mixing zirconium-niobium alloy, zirconium dioxide and iron; melting the mixture and preparing a zirconium-niobium alloy ingot; S2, sequentially performing large deformation forging in a beta single-phase zone and an alpha+beta two-phase zone; S3, drilling a central hole in the axial direction of a round-forging blank; quenching in the beta single-phase zone; S4, coating an anti-galling agent on the surface of the central hole and heating to prepare a pipe blank in the mode of cross piercing; S5, performing periodic forging and rolling on the pipe blank; S6, annealing the hot-rolled pipe twice; and straightening the hot-rolled pipe after the second-stage annealing. The zirconium-niobium alloy pipe has uniform microstructure, good mechanical properties and corrosion resistance, the production direction of the brittle hydride is nearly parallel to the circumferential direction of the pipe, and brittle damage of the pipe wall thickness caused by the crack propagation of the hydride is avoided.

The present application relates to the technical field of rail production process, in particular to a production method for improving wear resistance of channel rail for tram. After universal rolling, compressed air is applied to the channel rail for forced cooling in parts. In the first stage, supersonic air jet cooling is applied to the rail head tread, rail head running edge, rail head left side, rail lip and rail bottom to control the cooling speed of each part. In the second stage, supersonic air jet cooling is continuously applied to each part of the rail to control the cooling speed of each part. In the third stage, subsonic air jet cooling is applied to each part of the rail to control the cooling speed of each part, and then the rail is naturally cooled in air. The quenching effect of the channel rail tread and running edge is improved, the pearlite interlamellar spacing is refined, the rail strength and hardness are improved, and the channel rail has good wear resistance.

The utility model discloses a cabinet board fixed distance cutting mechanism, and a plurality of pulleys are equidistantly arranged on the workbench, a scale is arranged on the right top of the workbench, a clamping structure is arranged at the bottom center of the workbench, and a driving fixing structure is arranged on the back side of the workbench. The utility model relates to the technical field of board processing mechanical equipment, and the scale arranged on the right side of the workbench can quickly and accurately measure the board, the first lead screw, the light shaft and the sliding block are combined in the driving fixing structure, the lifting frame can stably walk up and down along the straight line, the driving fixing structure integrates the driving motor, the lead screw and the cutting motor, realizes the mechanization and automation of the cutting process, and the operator only needs to push the walking base to move left and right to complete the cutting. The clamping structure at the bottom of the workbench drives the second lead screw by rotating the handle, moves the clamping plate, and tightly presses the board on the workbench from the left and right sides.

The application provides a leveling structure and a keel mounting structure. The leveling structure comprises a keel, a first leveling nut, a second leveling nut and a leveling bolt, the keel is provided with a through hole; the first leveling nut is arranged on one side of the through hole close to a wall surface, and the second leveling nut is arranged on one side of the through hole away from the wall surface; the leveling bolt can be connected with the wall surface in sequence through the second leveling nut, the through hole and the first leveling nut. The application can improve the leveling efficiency of the keel.

This invention provides a method for processing an ultrafine lithotripsy probe, comprising the following steps: S1. Inserting one end of the probe body into the mounting hole of the probe base to complete the initial assembly; S2. Placing the initially assembled ultrafine lithotripsy probe into a pressing device and fastening the probe body to the column of the pressing device, so that the probe base is located inside the heating coil of the heating machine; S3. Starting the heating machine to heat the probe base, and when the probe base reaches a predetermined state, using the pressing device to press the probe body into the mounting hole to a predetermined depth; S4. After pressing, removing the ultrafine lithotripsy probe and performing a cooling treatment. The ultrafine lithotripsy probe produced by this processing method has the advantages of tight assembly between the probe body and the probe base, low ultrasonic transmission loss, and the connection between the probe body and the probe base is not easily broken under high-frequency ultrasonic vibration, resulting in high lithotripsy efficiency.

The utility model relates to a kind of glass fiber's compression moulding device, belong to glass fiber processing technical field, including base, fixedly connected to the column of base top, fixedly connected to the lower mould of base top and fixedly connected to the mounting plate of column top, the upper surface of the mounting plate is provided with the compression moulding mechanism extending to its lower surface, the upper surface of the lower mould is provided with material taking structure.The glass fiber's compression moulding device, when telescopic cylinder contracts, the upper die is lifted during the process, driving rod is driven to move upward synchronously, transmission rod moves synchronously with swing arm, drives mounting sleeve and material receiving seat to move to the direction of lower mould, until material receiving seat moves to the upper surface of lower mould, catch glass fiber product after compression moulding, realize the automatic reciprocating movement of material receiving seat, can complete material taking operation without manual intervention, improve production efficiency, reduce labor intensity, reach the advantage of high production efficiency.

The present application relates to the technical field of machining tools, in particular to a numerical control machining tool for long shaft parts, comprising a tool main body, two sets of clamping assemblies, two sets of connecting assemblies, a driving assembly and two sets of pushing assemblies. At least one set of the connecting assemblies is arranged to slide along the axial direction. An elastic member one is arranged between the connecting assembly and the clamping assembly, and the elastic member one is stretched by moving the connecting assembly to apply an axial tension to the part. The pushing assembly is arranged in the clamping assembly and comprises a pushing member and a driving member one, and is used to abut against the end face of the part. The present application further comprises an auxiliary assembly and a limiting assembly. When the clamping assembly is released to avoid the end machining tool, the limiting assembly locks the position of the pushing member, and cooperates with the auxiliary assembly to assist the fixing of the part in the radial and axial directions. The axial stretching mechanism effectively compensates for the thermal deformation of the long shaft part and suppresses the machining vibration.

This utility model relates to an anode, comprising an anode plate, an anode plate frame, a gas collecting chamber, a first diaphragm, and a second diaphragm. The anode plate frame defines an anode plate receiving space with front and rear openings. The anode plate is placed within this space, and the gas collecting chamber is located above and communicates with it. An acid mist outlet is provided on one side of the gas collecting chamber. The first diaphragm covers the front end of the anode plate frame to close the front opening of the anode plate receiving space, and the second diaphragm covers the rear end of the anode plate frame to close the rear opening of the anode plate receiving space. Furthermore, the periphery of the first diaphragm is detachably and sealingly connected to the front end of the anode plate frame and the front wall of the gas collecting chamber, and the periphery of the second diaphragm is detachably and sealingly connected to the rear end of the anode plate frame and the rear wall of the gas collecting chamber. This design avoids a series of adverse effects caused by the diaphragm contacting the anode and cathode during use.

This utility model discloses a filter fastening and adjustment mechanism for a bag filter dust collector, including a tube sheet with a through hole inside. An outer annular groove is formed above the outside of the through hole inside the tube sheet, and the outer annular groove communicates with the through hole. A filter bag is placed inside the through hole of the tube sheet. The filter bag includes a bag body and a bag opening ring edge, which are sewn together. The bag opening ring edge is located inside the outer annular groove. A frame mounting plate is provided above the bag opening ring edge, and the frame mounting plate is annular. A fastener is provided above the frame mounting plate, and the fastener includes a lower pressure plate, an upper pressure plate, and a rubber ring. The rubber ring is fixedly installed above the lower pressure plate. This mechanism achieves filter fastening capability, increases practicality, and solves the problem that traditional bag filter dust collectors often use simple bolt and nut fastening or spring compression methods, resulting in poor practicality.

This invention provides a flexible ball screw transmission mechanism and a measuring machine. The flexible ball screw transmission mechanism includes a ball screw, a nut, and a crossed roller slide assembly. The crossed roller slide assembly includes a first mounting slide, a second mounting slide, a third mounting slide, and a first and a second crossed roller linear guide rail arranged perpendicularly to each other. The two rails of the first crossed roller linear guide rail are respectively connected to the first and second mounting slides. The two rails of the second crossed roller linear guide rail are respectively connected to the second and third mounting slides. The first mounting slide is fixedly connected to one end face of the nut, and roller bearings are installed on both sides of the bottom of the first mounting slide. A connecting seat is fixedly connected to the third mounting slide. This flexible ball screw transmission mechanism, where the nut and connecting seat are connected by the crossed roller slide assembly, ensures smooth and accurate transmission, improving the measurement accuracy of the measuring machine.

The utility model relates to a positioning device of vertical frame belongs to the field of automobile manufacturing technology, it includes the fixed frame and two stand column units for positioning vertical frame, the vertical frame includes bottom crossbeam, top crossbeam and two frame stands between bottom crossbeam and top crossbeam, bottom crossbeam is set up on the fixed frame through the sliding mechanism, under the action of sliding mechanism, vertical frame can move between initial position and jointing position, the stand column unit is located in the side of frame stand for positioning frame stand. The sliding mechanism includes rack, gear and sliding motor of driving gear rotation that are engaged with rack, the utility model simple structure, convenient operation, the positioning of vertical frame is stable, safe and reliable, guarantees the positioning accuracy of vertical frame, and different pincers can be installed on vertical frame and positioned, to satisfy the flexible jointing production requirement of automobile.

The utility model discloses a kind of production auxiliary systems of colloidal emulsion explosive charging machine, including charging machine body, charging machine body includes rotating platform and multiple groups of buckle mechanism connected with rotating platform, multiple groups of buckle mechanism are evenly arranged on rotating platform along the circumferential direction, the middle part of adjacent two groups of buckle mechanism is equipped with cartridge receiving and pushing assembly, cartridge receiving and pushing assembly includes L type connecting rod and receiving plate, the upper end of L type connecting rod is connected with rotating platform, the bottom of receiving plate is connected with the upper end of another end of L type connecting rod, the upper end height of receiving plate is with the bottom end height of cartridge when charging machine body works, receiving plate and multiple groups of buckle mechanism are on same circumference.

The utility model relates to the field of longitudinal welded pipe welding, and discloses a self-adaptive compression anti-deformation device for longitudinal welded pipe welding, which comprises a workbench, the top of the workbench is fixedly connected with a limiting cylinder, the left end of the limiting cylinder is fixedly connected with a motor I, the output end of the motor I is fixedly connected with a cross rotating rod, and the cross rotating rod is fixedly connected with a rotating shaft. A sleeve is slidably connected to the outer wall of the cross rotating rod, a circular block is fixedly connected to the right end of the sleeve, a limiting cylinder is rotatably connected to the outer wall of the right end of the sleeve, a limiting groove is formed in the inner wall of the limiting cylinder, a sliding block is slidably connected to the outer wall of the limiting groove, and a supporting plate is fixedly connected to the top of the sliding block. According to the utility model, the self-adaptive support of the support plate on the welded pipes with different inner diameters can be realized, the welding seam deviation caused by stress deformation or position deviation of the welded pipes in the welding process is avoided, the positioning accuracy before welding is improved, meanwhile, support parts with different specifications do not need to be replaced, and the universality of the equipment on the welded pipes with various pipe diameters is enhanced.

This application relates to the field of aerospace manufacturing process equipment technology, specifically to a flexible paperclip winding machine for anodizing aerospace aluminum alloys, and particularly to a specialized tooling with adjustable dimensions for the efficient manufacture of paperclip fixtures. The positioning block is adjustable, allowing for rapid adaptation to the manufacturing needs of paperclip fixtures of different specifications; the guiding system ensures the straightness of the aluminum wire, and mechanical forming guarantees product consistency; manual operation is simple, reducing the skill requirements for operators; it can handle aluminum wire materials of different diameters and is suitable for various aerospace aluminum alloy materials; the winding machine adopts a modular design, allowing for quick replacement of key components, reducing equipment maintenance time and costs.

The utility model relates to gear machining technical field, concretely relates to a gear machining frock is used hobbing fixture, and servo motor provides accurate controllable rotation power source, and the clamping plate directly contacts and fixes the gear inner hole surface through radial displacement, and the limiting plate restrains the maximum expansion stroke of the clamping plate and prevents overload damage, and the movable groove provides stable axial movement track for the taper buckle, rotates through servo motor drive screw, drives the taper buckle axial movement and pushes movable block radial expansion, makes the antiskid layer of clamping plate end even pressure gear inner hole, and the protection board effectively isolates processing pollution, and this closed loop control system has improved the repeat positioning accuracy and processing stability of gear clamping significantly, and the limiting rod of clamping plate inboard restricts its movement along the set trajectory only, avoids the clamping deviation caused by deflection, and the fastening bolt can adjust the antiskid layer pressure flexibly to different hole diameter gear.

This invention discloses a steel pipe anti-deformation structure, comprising: an inner medium-flow steel pipe, the inner surface of which is coated with a ceramic layer; and a middle layer of high-temperature resistant steel pipe fitted onto the outer surface of which is a middle layer of high-temperature resistant steel pipe. The middle layer of high-temperature resistant steel pipe is composed of multiple segments of first high-temperature resistant steel pipes spliced ​​together, with a first expansion joint between adjacent first high-temperature resistant steel pipes. A certain gap is maintained between the inner surface of the middle layer of high-temperature resistant steel pipe and the outer surface of the inner medium-flow steel pipe. This invention's steel pipe anti-deformation structure ensures the straightness of the inner medium-flow steel pipe by adding a composite ceramic layer inside the inner medium-flow steel pipe and adding multiple single-layer or multi-layer high-temperature resistant steel pipes to the outer wall of the steel pipe, thus preventing bending deformation and extending service life.

This invention belongs to the field of medical device technology and discloses an implantable medical connector, an extension lead, and an implantable neurostimulation system. The implantable medical connector includes a channel module and a support core. The channel module includes a protective shell and multiple conductive elements and multiple seals disposed within the protective shell. The conductive elements and seals are arranged coaxially and alternately along a first direction. The interiors of the conductive elements and seals together form a insertion channel for inserting electrode leads, which extends along the first direction. At least a portion of the support core is fixedly disposed within the insertion channel. The electrode lead includes a connecting end that inserts into the insertion channel and a receiving channel extending inward from the connecting end. When the electrode lead is inserted into the insertion channel, the support core is received within the receiving channel. This invention can improve the radial load resistance of the electrode lead and enhance product reliability.

The utility model discloses a multilayer material conveying platform, including the chassis, the material frame and a plurality of swing ware, a plurality of swing ware set up on chassis, a plurality of swing ware's output and material frame are connected and can drive material frame from top to bottom swing, material frame from top to bottom is provided with a plurality of material plate in proper order, just be provided with a plurality of material conveying roller on material plate, swing ware includes telescopic pneumatic cylinder and swing block, telescopic pneumatic cylinder installs on chassis, swing block is hinged with telescopic pneumatic cylinder, material frame includes a plurality of vertical rods respectively with material plate is connected, the material frame of this multilayer material conveying platform is provided with a plurality of material plate from top to bottom, is provided with a plurality of material conveying roller on material plate, and the friction of material along the material conveying roller conveying can reduce to material and make material surface not easy to wear and tear, and a plurality of material plate can support a plurality of different horizontal plane material, to prevent material from sagging and bending deformation under the action of its own gravity, guarantee the flatness and quality of material.

This utility model discloses a wire cutting device for wire harness terminals, comprising a processing table: a horizontal plate is fixedly installed on the top of the processing table, a conveying roller group and a cutting assembly are installed on the top of the processing table, a carrier plate is fixedly connected to the bottom of the horizontal plate by bolts, an electric telescopic rod and a slide rail are fixedly connected to the bottom of the carrier plate by bolts, a slider is slidably connected to the surface of the slide rail, and a push-pull plate is fixedly connected to the output end of the electric telescopic rod by a flange. This utility model uses the electric telescopic rod to drive the push-pull plate to move the dial shaft, which in turn moves the connecting block and T-shaped block via the slider. The T-shaped block then drives the guide wheel to fit against the wire harness via the upright rod. This achieves the goal of driving the guide wheels on both sides of the wire harness to move relative to each other via the electric telescopic rod, thus guiding the wire harness and ensuring its straightness during transport, while also improving the efficiency of adjusting the fit between the guide wheel and the wire harness.

The utility model provides a kind of for injection mold's insert installation and finished product pick-up tool, including finished product pick-up part, grabbing part and insert installation part, the finished product after injection is taken out using negative pressure by the adsorption part;The grabbing part is connected with mechanical arm, for lifting and moving tool;The finished product pick-up part is connected with insert installation part, the insert installation part includes straight line mechanism, for installing several inserts in injection mold.

The invention discloses honeycomb paper protective sleeve synthesis equipment with a multi-station rotary table. The honeycomb paper protective sleeve synthesis equipment comprises a rack, and a storage device, a honeycomb strip feeding device and a honeycomb strip pulling device are arranged on the two opposite sides of the rack; the honeycomb strip pulling device is provided with a group of stretching and unfolding mechanisms which alternately suck honeycomb strips and convey the honeycomb strips at fixed points, the honeycomb strips are stretched and unfolded after being sucked, and the unfolded honeycomb strips are downwards pressed to the multi-station turntable honeycomb strip bonding device by a pressing mechanism; the multi-station rotary table honeycomb strip bonding device integrates honeycomb strip overturning, glue spraying, folding, attaching and forming and discharging, and a plurality of protective sleeve overturning and attaching components of the same structure are distributed on the circumference of a rotary table of a rotary table rotating mechanism of the multi-station rotary table honeycomb strip bonding device and used for assisting the operation. A plurality of functional modules such as storage, feeding, stretching and unfolding, multi-station turntable integrated type overturning, glue spraying and attaching, automatic discharging and the like are creatively integrated into one set of equipment, and a mechanical structure is combined with pneumatic and electric control, so that full-automatic and continuous production of the honeycomb paper protective sleeve is realized.

The utility model relates to building construction equipment technical field especially relates to a water and electricity construction wall surface grooving robot, including movable chassis and multistage lifting translation mechanism, the movable chassis upside is installed with the box, is equipped with dust removal mechanism in the box, the multistage lifting translation mechanism of box left side is equipped with the multistage lifting translation mechanism that can be right angle overturns, the multistage lifting translation mechanism bottom is hinged with the box through two groups of right angle folding self -lock hinge, the multistage lifting translation mechanism left side is installed with cutting machine head, and cutting saw blade is assembled in cutting machine head inside, and cutting motor is installed on cutting machine head front side, and the output of cutting motor is connected with the axle on cutting saw blade. The utility model discloses through the controller can set the working parameter of robot, and the robot can independently plan the path, and the wall surface grooving is carried out automatically, in the operation process, need not manual intervention, can save a lot of time and labor, can realize accurate grooving operation simultaneously, guarantees construction quality and efficiency.

This utility model relates to the field of aluminum alloy door and window processing technology, and in particular to a glue application device for aluminum alloy door and window processing. It includes a mounting platform and a linear motor. The linear motor is fixedly connected to one side of the top of the mounting platform, and the moving end of the linear motor is fixedly connected to the glue application machine body. An intermittent motion component is installed in the middle of the mounting platform. The intermittent motion component includes a main shaft, which is rotatably mounted on the upper surface of the mounting platform near the linear motor. A grooved wheel is fixedly connected to the middle of the outer side of the main shaft, and four radial grooves are formed on the outer side of the grooved wheel. A ratchet is fixedly connected to the top of the main shaft, and a placement plate is fixedly connected to the top of the main shaft. A dial mechanism that cooperates with the grooved wheel is rotatably connected to the middle of the mounting platform. In this utility model, a precise 90° intermittent rotation of the aluminum alloy door and window frame is achieved, avoiding visual errors and hand instability caused by manual operation, and ensuring the straightness and uniformity of the glue line during the glue application process.

The application discloses an automatic pipe storage method and device, and relates to the technical field of oil and gas exploitation supporting equipment. The automatic pipe storage method comprises the following steps: step 1, two storage racks are horizontally moved to a working position with a certain distance; step 2, the storage racks are rotated so that the continuous feeding storage mechanisms on the two storage racks are turned to the inner side and oppositely arranged; step 3, a manipulator carries a pipe column to the continuous feeding storage mechanism; step 4, the continuous feeding storage mechanism transports the pipe column from one side of the storage rack to the other side; step 5, steps 3 and 4 are repeated until the pipe column is placed or the oil pipe is fully placed in the pipe storage mechanism; and step 6, after the oil pipes on the pipe storage mechanism are all removed, the storage racks are rotated to be parallel to the bottom frame, and the distance between the two is reset to the storage position. The application is convenient for storage and transportation of pipe columns with different sizes, and the cooperation of the carrying manipulator and the continuous feeding storage mechanism improves the continuity and operation efficiency of the automatic pipe storage operation.

The utility model discloses a gun drill guiding auxiliary device of promoting pressure injection rod deep hole machining precision belongs to gun drill processing technical field, including auxiliary frame, the auxiliary frame upper surface rotationally connected with the fixed frame, and the auxiliary frame upper surface slidingly connected with the lower guide block, and the lower guide block upper end slidingly connected with the upper guide block, and the upper guide block outside is pasted with the fixed frame inner wall simultaneously, the upper guide block inside is all set up with the lower guide block inside connection groove, and the connection groove surface fixedly connected with the reinforcing rib. The gun drill guiding auxiliary device of promoting pressure injection rod deep hole machining precision, through setting up the auxiliary frame and the fixed frame, effectively avoid the gun drill and appear deviation when initial drilling, from the machining starting stage just has guaranteed the position precision of deep hole machining, restricts the displacement of gun drill in each direction simultaneously, controls position deviation in the extremely small range, effectively reduces the accumulation of position deviation, guarantees the straightness and cylindricity of deep hole machining.

This invention discloses a centering device structure with a pipe-holding function, including a pipe-holding centering device base mounted on a drilling rig. Two left-right swing brackets are symmetrically hinged on the pipe-holding centering device, and two left-right swing supports are hinged opposite each other at their middle portions. Two outer clamping plates are oppositely mounted on the two left-right swing supports. During drilling operations, two internal drilling chucks are oppositely mounted on the two external clamping plates, and a drilling connection frame is located between the ends of the two left-right swing brackets away from the pipe-holding centering device base. When the drilling rig needs to perform casing installation, two internal pipe-holding clamping plates are oppositely mounted on the two external clamping plates, and a pipe-holding cylinder is located between the ends of the two left-right swing brackets away from the pipe-holding centering device base. This invention allows for convenient and timely changes in construction methods according to construction needs, achieving the effects of convenience, speed, improved production efficiency, and reduced labor intensity.

This invention relates to the field of painting apparatus technology, and more particularly to a paint roller brush. The paint roller brush includes a roller, a roller frame, and two telescopic shafts. The roller includes an inner cylinder and an outer cylinder. The inner cylinder is coaxially fitted inside the outer cylinder, forming a storage cavity for storing paint. The outer cylinder has a through-hole for dispensing paint, which communicates with the storage cavity. The outer cylinder is rotatably mounted on the roller frame. A telescopic shaft is axially inserted at both ends of the inner cylinder, and the position of the telescopic shaft along the axial direction of the inner cylinder is adjustable. During painting operations, the axial length of the telescopic shaft extending beyond the inner cylinder is adjusted so that the end face of the telescopic shaft away from the inner cylinder is aligned with a set edge, ensuring a neat and straight painting trajectory for the roller. This eliminates the need for tracing paper, reducing paint consumption and waste, lowering costs, and improving painting efficiency. The paint in the storage cavity wets the outer circumference of the outer cylinder through the paint outlet, reducing the frequency of paint handling by the worker and improving painting efficiency and paint film uniformity.

This utility model relates to a grooving device for floor processing, comprising a rod, a cutting component, a support component, and a guide component. The top of the rod can be held by hand, and a mounting plate is provided at its bottom. Support components are provided on both sides of the mounting plate, and a guide component is provided at the front end. The support components and the guide component on both sides of the mounting plate form a triangular structure in the working state. A mounting hole is provided at the center of the bottom of the mounting plate, and the cutting component is installed in the mounting hole. Pushing the rod can drive the guide component forward, and it moves straight forward under the guidance of the guide component. During this process, the cutting component cuts the floor. By setting up the support component and the guide component, the triangular structure is formed in the working state, which greatly improves the stability of the equipment, ensures the straightness of the cutting process, and thus improves the accuracy of floor grooving.

The present application belongs to the technical field of punch forming, and relates to a packaging aluminum pipe punch forming device. The present application comprises a packaging aluminum pipe punch forming device, which comprises a die and a punch. A die cavity that is matched with the punch is formed in the die. A bar magnet is arranged in the punch. A radially magnetized annular magnet is arranged in the die. The axis of the radially magnetized annular magnet coincides with the axis of the die cavity. When the punch is inserted into the die cavity to punch, a radial repulsive force is generated between the radially magnetized annular magnet and the bar magnet, so that the punch is kept at the central position of the die cavity. The strong repulsive force generated by the same polarity of the radially magnetized annular magnet and the bar magnet can keep the punch at the central position, so as to resist the lateral force that causes the bending of the punch, and effectively prevent the bending and deformation of the punch. Therefore, the wall thickness uniformity and straightness of the formed packaging aluminum pipe are ensured.