32results about "Forging hammers" patented technology

The present application relates to the field of aluminum forging forging manufacturing, particularly to a kind of aluminum forging forging press and forging method, including anvil and hammer seat, four corners of the anvil are all fixed with vertical slide rod, the upper end of vertical slide rod is fixed with hydraulic mechanism, the hammer seat is slid through four vertical slide rods and is fixedly connected with the lower end of hydraulic mechanism, the anvil upper end front and rear direction is equipped with semicircular groove, semicircular groove is matched with semicircular seat rotation.The present application includes S1, the plane of semicircular seat is in the same plane with the upper end surface of anvil;S2, aluminum alloy blank is placed in semicircular seat and the upper end surface of anvil, the hammer seat is controlled to slide down by hydraulic mechanism, and the forging of aluminum alloy blank is formed;S3, semicircular seat is controlled to rotate on anvil, the upper end surface of anvil and the plane of semicircular seat form height difference, and aluminum alloy blank is turned over using this height difference, then semicircular seat is rotated again, and forging is carried out again.The present application is convenient for turning over aluminum alloy blank during forging.

The invention discloses a small-aperture thick-wall metal tube and a preparation method thereof. The cross-sectional diameter of the metal tube ranges from 30mm to 160mm, the dimensional accuracy is ±0.2mm, and the ratio of the outer diameter of the metal tube to the wall thickness of the metal tube is greater than 2 to less than or equal to 20. The inner wall and outer wall of the metal tube are free of peeling, dents, or cracks. The metal tube is made of steel, copper, aluminum, magnesium, titanium, or alloy. The invention has the characteristics of forging and rolling, can realize single pass and large deformation amount processing of the metal tube blank, and has the advantages of short process flow, high product dimensional accuracy (±0.2mm), good quality of the inner wall and outer wall surface, and low cost.

The invention relates to a forging hammer, a machining method thereof and a precision forging machine. The forging hammer comprises a plurality of hammer heads, the hammer heads are used for being arranged in the circumferential direction of a machining station, the machining station is used for containing a to-be-machined workpiece, and the forging hammer is used for forging in the radial direction of the to-be-machined workpiece. Each hammer head comprises a base body transition layer forging layer. A groove is formed in the side, facing the machining station, of the base body. The transition layer is arranged at the bottom of the groove. The material of the forging layer comprises tungsten carbide, the forging layer is arranged in the groove, and the forging layer is arranged on the side, facing the groove opening of the groove, of the transition layer. The forging hammer has the advantages of being good in performance and high in durability.

The utility model relates to the technical field of forging processing, and discloses a forging device of a trunnion forge piece, which comprises a forging table, two material guide chutes are arranged in the forging table, and top channel openings of the two material guide chutes are positioned on the top plane of the forging table; two mounting grooves are formed in the forging table, and a collecting box with an upward box opening is mounted in each of the two mounting grooves; the two collecting boxes are in one-to-one correspondence with the two material guide chutes, and a bottom chute opening of each material guide chute is communicated with the corresponding collecting box; a scraping plate is slidably mounted on the top table top of the forging table, and top channel openings of the two material guiding chutes are located on the sliding track of the scraping plate. A movable seat is mounted at the top of the forging table, and a clamping and overturning assembly is mounted on the movable seat; a power piece for driving the movable base to move up and down is installed on the forging table, and the scraper is in transmission fit with the movable base through a linkage assembly. Manual participation is not needed, the automation degree is high, meanwhile, the safety risk is reduced, and the machining efficiency is improved.

This invention relates to the field of steel forging technology and discloses a forging and forming apparatus for steel processing, including a forging unit. The forging unit includes a support frame, and a tilting table is disposed inside the support frame. A first forging hammer and a second forging hammer are symmetrically mounted on the tilting table. A switching unit includes a dual-axis motor installed inside the support frame and a bushing with bearings connected to the support frame. When the dual-axis motor is driven to rotate, the bushing is controlled to rotate via a belt pulley transmission mechanism, thereby controlling the rotation of the tilting table. This invention, by setting up the switching unit, realizes the alternating operation of the first and second forging hammers. When one hammer is working, the other hammer has time to cool and recover, avoiding excessive wear and thermal damage caused by prolonged continuous operation of a single hammer, thus effectively extending the service life of the hammers.

The utility model relates to electro -hydraulic hammer technical field discloses a kind of electro -hydraulic hammer with protective device, including installation base, fixed assembly and forging table are provided on the installation base, the outside of the forging table is provided with protective assembly, the side, away from the forging table of the protective assembly, is provided with detection assembly, the side of the fixed assembly is provided with control center;In the utility model, by the protective assembly is set in the position with a certain distance from forging table, avoid the metal scrap that flies out in the forging hammering process and rebound on forging table after hitting protective shell, lead to the forging effect is poor;By setting detection assembly, whether there is staff standing outside protective assembly is detected currently, control center receives signal, control protective assembly adjusts, block metal scrap and fly out, avoid splashing to the face of staff, lead to staff injury, ensure the safety of personnel.

The utility model discloses a forging and pressing device for a breeding fence protective net connecting belt, and belongs to the technical field of forging and pressing machining. A forging and pressing device for a connecting belt of a breeding fence protective net comprises a forging press with a hammer head, an anvil block of a cylindrical structure is fixedly arranged on the forging press, the forging press further comprises a fence arranged on the anvil block in a sleeving mode, the bottom of the fence is detachably connected with the forging press, an upper blocking cover of an arc-shaped structure is fixedly arranged on the top of the fence, and the upper blocking cover is fixedly connected with the hammer head. A window is formed in the upper blocking cover, a transparent baffle extending towards the window is arranged in the upper blocking cover in a sliding mode, and a space is reserved between the bottom of the transparent baffle and the inner bottom of the window. The anvil block is sleeved with the fence, the upper blocking cover is fixedly arranged at the top of the fence, splashing of impurities can be reduced in the forging process, the impurities can be concentrated in the fence, the follow-up cleaning difficulty is reduced, the risk of hurting people is reduced through effective shielding of the fence and the upper blocking cover, and production safety is improved.

The application discloses a high-precision preparation device for a zirconium alloy fuel assembly guide tube, which comprises a rotary swaging assembly, the rotary swaging assembly comprises two adjustable-angle rotary swaging devices symmetrically arranged upward and downward, the adjustable-angle rotary swaging device comprises a moving plate, a plurality of connecting rods are arranged on the moving plate, a swaging hammer is arranged on each connecting rod, a chuck seat coaxial with the rotary swaging assembly is arranged on the side of the rotary swaging assembly, a polishing cylinder coaxial with the chuck seat is arranged on the chuck seat, two screw rods are symmetrically installed on the polishing cylinder, a round polishing block is installed at one end of each screw rod in the polishing cylinder, the device further comprises a core rod coaxial with the rotary swaging assembly and the chuck seat, and a fixing sleeve for clamping and rotating the zirconium alloy tube. The adjustable-angle rotary swaging device and the round polishing block are used for realizing accurate diameter change forming and surface treatment of the zirconium alloy fuel assembly guide tubes with different specifications, and the production efficiency and the yield of the zirconium alloy fuel assembly guide tubes are improved.

The forging equipment comprises a core rod, a sliding support, a pushing mechanism and an abutting positioning mechanism, a cylindrical groove is coaxially formed in one end of the core rod, the sliding support comprises two sets of sliding rails, two sets of frame bodies and a locking piece, the two sets of sliding rails are arranged in parallel, the two sets of frame bodies are arranged in parallel, and the locking piece is arranged in the cylindrical groove. The bottoms of the frame bodies are correspondingly connected with the sliding rails in a sliding mode, the height of the frame bodies is adjustable, and the locking pieces are connected between the sliding rails and the frame bodies. The pushing mechanism is connected between the two groups of frame bodies, and the pushing mechanism is provided with a telescopic moving end; the abutting positioning mechanism is connected to the telescopic moving end of the pushing mechanism and comprises two disc-mounted pieces, a plurality of clamping jaws and a synchronous telescopic assembly. According to the core rod, an existing core rod is improved, the cylindrical groove is coaxially formed in one end of the core rod, the abutting positioning mechanism matched with the cylindrical groove is arranged at the telescopic moving end of the pushing mechanism, and the abutting positioning mechanism is used for guiding the telescopic moving end to apply thrust with the stable force application direction.

The embodiment of the invention provides a method for improving the utilization rate of alloy consumable ingots, a forging device and application of the forging device in GH4169 alloy preparation, and belongs to the technical field of high-temperature alloy casting. The method comprises the following steps: providing an alloy consumable ingot prepared by vacuum consumable remelting; the alloy consumable ingot is heated to the preset forging temperature at the preset heating rate; the end of the alloy consumable ingot is subjected to primary forging, and a basic clamp handle structure is formed through forging and rotating; secondary forging is conducted on the basic clamp handle structure, and the basic clamp handle structure is forged into a clamp handle through forging and pressing; after primary forging and secondary forging, the defect of the central area of the end of the alloy consumable ingot is left in the clamp handle, and the pure material surrounding the central area is pressed into the qualified area of the alloy consumable ingot to be recycled. According to the method, end defects are accurately recognized, the alloy consumable ingots are locked in the cut pliers handles so as to retain qualified materials, and the effective utilization rate of the GH4169 alloy consumable ingots is increased by 10%-15%.

The utility model discloses forging and stamping equipment for forge piece machining, which comprises a base, a protective frame is fixedly embedded in the center of the top of the base, an anvil block is fixedly connected to the center of the bottom of the inner side of the protective frame, and a forging and stamping table is fixedly embedded in the outer side of the top of the anvil block. Operation notches are symmetrically formed in the left side and the right side of the protection frame, an anti-explosion observation window is fixedly embedded in the front side of the protection frame, electric push rods are symmetrically fixed to the front side of the top of the base left and right, the top output ends of the electric push rods are fixedly connected with semicircular supports, and a forging taking and placing space and an operation space for operators are reserved. And meanwhile, a conventional iron clamp for supporting and clamping the forge piece is assisted to relieve wrist aching pain caused by long-time holding, the safety problem that the forge piece slips out of the hand is avoided, in addition, a protective barrier is formed between the forge piece and the forge piece for safety isolation protection while observation of the forging state by an operator is not affected, and the safety of manual forging is guaranteed.

The application discloses a kind of forging methods of bending rudder bar, belong to bending rudder bar technical field, including selecting the steel blank of circular or square section;Steel blank is preheated;Forging operation includes cutting shoulder with lower chopper, lengthening, bending;When cutting shoulder with lower chopper, adopt shoulder 200mm with inclination;After cutting shoulder with lower chopper processing, install on square drawing machine and carry out lengthening;When bending, bending rudder bar is placed between flat anvil and V-shaped anvil using clamp fixed, and using hammer head to exert force;After forging operation is completed, the size of bending rudder bar is calibrated;After size calibration, bending rudder bar is heat treated;After heat treatment, the quality of bending rudder bar is inspected;After quality inspection, the surface of bending rudder bar is treated and sprayed;The slope of shoulder with inclination can make stress distribution more uniform, reduce the concentration of local stress, so as to improve the strength and fatigue resistance of ship bending rudder bar;Meanwhile, shoulder with inclination can reduce material loss in cutting process.

The invention belongs to the technical field of forging and pressing manufacturing, and provides a precision forging forming method of an ultra-long ultrahigh-pressure steel pipe precision forging machine, which comprises the following steps: step 1, placing blanks in an effective heating area of a furnace kiln, heating the blanks to a forging temperature of 1080-1100 DEG C, fully preserving heat, taking out the blanks by a material loading and taking machine after heating, and taking out the blanks; quickly placing on a feeding roller way, carrying out air cooling for 3-10 minutes, and then, carrying out automatic feeding and forging by adopting a precision forging machine; secondly, the forging passes of the forging stock and the forging ratio of all the passes are controlled, the total forging pass is controlled to be 4-6, the main forming forging frequency is 180 times / min, the first pass rolling reduction is controlled to be 40-70 mm, and the forging time is controlled to be within 1 min; the deformation ratio of the second pass to the third pass is larger than or equal to 1.5, the forging time of the second pass is controlled within 1 min, the forging time of the third pass is controlled within 1.5 min, the forging frequency of the last pass is 240 times / min, and the rolling reduction is controlled within 4-6 mm. According to the technical scheme, the production efficiency is improved, the production period is shortened through shrinkage forging, and the production cost is greatly reduced.

A method for automatic pass schedule calculation during forging, in particular radial forging, of stepped shafts made of metal workpieces, in particular steel, in a forging machine, preferably a radial forging machine with at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted for simultaneous forging the workpiece and / or the stepped shaft, includes: entering starting parameters for the forging process, preferably radial forging process, into a pass schedule calculation program; specifying target parameters for the forging process, preferably radial forging process; and calculating, by the pass schedule calculation program, based on these start and target parameters, a pass plan or calculated a forge sequence. A control and / or regulation unit and a forging machine for carrying out the method are disclosed.

The utility model relates to the technical field of air hammers, and discloses an air hammer with an adjustable clamping structure, which comprises a body and a hammer seat, the body is fixedly connected with the hammer seat, the output end of the body is fixedly provided with a hammer head, the outer surface of the body is provided with a mounting seat, the outer surface of the mounting seat is provided with a servo motor, and the servo motor is connected with the body. A worm is fixedly mounted at the output end of the servo motor, the outer surface of the worm is rotationally connected with the interior of the mounting base, and according to the air hammer with the adjustable clamping structure, by controlling the servo motor to operate, the worm is driven to be in linkage with the worm gear part to rotate; a first rack plate and a second rack plate are meshed and moved on the outer surface of a worm gear part, a first rack seat and a second rack seat are driven to move oppositely, a left side clamp and a right side clamp are driven to get close to each other and slide on the outer surface of a hammer seat, a clamping structure is adjusted, and therefore the purposes of reducing manual fatigue and improving the working efficiency are achieved. And raw material falling is reduced.

A forming jaw of a rotary swaging tool for shaping a plastically deformable, preferably metallic, workpiece has a jaw main body and a forming body which is a separate component from the jaw main body and is mounted on the jaw main body, preferably connected to the jaw main body. On a side facing the workpiece, the forming body is bounded by a shaping surface designed for shaping a workpiece. A rotary swaging tool has at least one forming jaw of the above-mentioned type.

The application relates to the technical field of aluminum alloy forging equipment, in particular to a space-grade high-strength aluminum alloy forge piece manufacturing device and method, which comprises an L-shaped machining seat, the top of the vertical plate of the L-shaped machining seat is fixedly connected with a fixed plate, the top of the fixed plate is fixedly provided with a forging hammer, the top of the horizontal plate of the L-shaped machining seat is provided with two moving grooves, and the two moving grooves are slidably connected with moving blocks. The space-grade high-strength aluminum alloy forge piece manufacturing device and method are characterized in that when the aluminum alloy forge piece is fixed, the connecting rod drives the rotating rod and the C-shaped rod to rotate together, at this time, the bottom end of the vertical rod of the C-shaped rod is in contact with the inner wall of the adjusting groove, the C-shaped rod is moved upwards and the first compression spring is compressed, the locking of the connecting rod, the rotating rod and the clamping frame is released, the angle of the aluminum alloy forge piece is adjusted according to the forging requirement, and when an error occurs in the forging or the operation is improper, the processing state of the aluminum alloy forge piece can be quickly released, so that the loss of the aluminum alloy forge piece is reduced.

Radial forging of long products made of metal workpieces in a radial forging machine uses at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted to simultaneously carry out the forging operation. An automatic pass schedule calculation includes entering start parameters for the radial forging process into a pass schedule calculation program and defining target parameters for the radial forging process. The pass schedule calculation program calculates a pass schedule or a forging sequence based on these start and target parameters. The pass schedule calculation program determines a temperature variation and the temperature distribution over the cross section of the long product and takes into account the change in shape during radial forging.

The utility model discloses a forging press for forging forged parts, and relates to the technical field of forging. The forging press for forging the forging parts comprises a base, an adjusting mechanism and a placing mechanism, the adjusting mechanism comprises a moving assembly arranged on the base and a supporting assembly arranged on the moving assembly, the moving assembly is connected with the supporting assembly in a clamped mode, and a hydraulic rod is arranged on the supporting assembly; the placing mechanism comprises a U-shaped storage rack arranged on the supporting assembly and a T-shaped clamping rack arranged on the U-shaped storage rack, and the T-shaped clamping rack is fixedly connected to the other side of the base. According to the mechanism, the stamping position of the hydraulic rod can be adjusted according to the length of a forging material through driving of the moving assembly, workers do not need to manually move the position of the forging material through the design, the situation that the workers are injured by crashing can be avoided, meanwhile, the connecting mode of the mechanism is mostly clamping connection, and the working efficiency is improved. Therefore, the parts can be disassembled during carrying and then assembled on site.

This invention relates to the field of forging equipment technology, and provides a forging device for manufacturing round magnesium alloy forgings. The device includes a forging machine body, on which a forging die is mounted. The forging die has a forging groove, and a receiving space is provided at the bottom of the forging groove within the forging machine body. An ejector mechanism is installed within this receiving space. This invention overcomes the shortcomings of existing technologies, featuring a reasonable design and compact structure. By using a horizontally movable pressure plate that cooperates with stepped bearing portions on both sides of the receiving space, it avoids long-term heavy loads or impacts on drive components such as screws and gears during ejection, significantly reducing wear and overload damage risks to the drive unit. Initially, the ejector pin is located at the bottom of the forging groove, and after the bottom of the billet is placed in, the exposed portion of its top is less than half of its total length. Manual clamping and support with pliers is required, reducing labor intensity and significantly improving operational safety.

An apparatus (1) for continuously manufacturing shafts which are at least partially hollow and have a varying inner diameter, comprising at least two forging tools (3) which are arranged centrosymmetrically around a forging axis (2) and which are drivable in the sense of a radial working stroke, a clamping head (4) for holding a cylindrical blank (5) which is at least partially hollow, a mating holding element (6) for axially supporting the blank (5), wherein the mating holding element (6) has a base (7) and a mating holding mandrel (9) which is arranged on the base (7) and which extends axially into a central cavity (8) of the blank (5), wherein the mating holding mandrel (9) is at least two-part, wherein a first part of the mating holding mandrel (9) is an inner part (10) and a second part of the mating holding mandrel (9) is an outer part (11) which surrounds the inner part (10), wherein at least the outer part (11) is axially movably configured relative to the inner part (10), and a method for continuously manufacturing shafts which are at least partially hollow and have a varying inner diameter under the condition of using such an apparatus (1).

The invention discloses a forming tool and a forming process for one-pass hot (warm) forging forming of a thick-wall square tube, and solves the problem of how to develop a hot (warm) forging one-pass forming process for the thick-wall square tube and a forming tool for realizing the process. The four-hammerhead radial forging machine is adopted, high-frequency reciprocating forging and pressing are conducted on the two hammerheads in the vertical direction and the two hammerheads in the horizontal direction, a mandril of the four-hammerhead radial forging machine is kept still, a blank horizontally moves under clamping of a clamping machine, and one-pass forging and pressing of the round pipe blank are achieved to form the thick-wall square pipe. The forging and pressing hammerhead working faces are designed into the forging and pressing forming working faces and the forging and pressing leveling working faces in a spaced and segmented mode, the two transverse forging and pressing hammerhead working faces are ingeniously matched with the two longitudinal forging and pressing hammerhead working faces, and one-pass forming of blanks is achieved.

The invention relates to an electric contact element (2) comprising a bent portion (46), the bent portion having a cross-section (10) with at least one corner (26). The invention also relates to a method for manufacturing such an electric contact, e.g. from sheet material by stamping and bending the electric contact element (2). Due to an increased miniaturization of such electric contact elements (2), it is increasingly difficult to ensure that the electric contact elements (2) keep pre-determined position tolerances after bending. It has been observed that the bending process gets more accurate when the corner (26) is chamfered at least in the bent portion (46).

This invention discloses a forging equipment and method for input shaft gears used in new energy vehicles. This invention relates to the field of intelligent forging equipment technology. The forging equipment includes a base frame, a control box, a steering conveyor belt, a cutting machine, an electro-hydraulic hammer mill, a final forging mechanism, an electrically controlled sliding table, and a multi-axis robotic arm. The final forging mechanism includes a gantry frame and a base plate. The control box, steering conveyor belt, cutting machine, electro-hydraulic hammer mill, gantry frame, base plate, and electrically controlled sliding table are all fixedly connected to the base frame. The multi-axis robotic arm is fixedly connected to the electrically controlled sliding table. The steering conveyor belt, cutting machine, electro-hydraulic hammer mill, final forging mechanism, electrically controlled sliding table, and multi-axis robotic arm are all connected to the control box via electrical signals. This invention automates the cutting, heating, rough forging, and finish forging of gear parts. It employs multiple fine-tuning and zoned forging pressure on the upper surface of the rough blank, eliminating the flash phenomenon of stamping and hammer forging, increasing the deformation speed and pressure of the rough blank, ensuring that the metal fills the die cavity, and significantly improving the efficiency and quality of forging.

The invention discloses a method for improving the three-way uniformity of a forged structure of a GH350 alloy, which adopts a multi-way dynamic recrystallization regulation and control forging and gradient aging heat treatment composite process and comprises the following steps: adopting gradient aging heat treatment, accurately controlling a phase change process and improving the uniformity. Under the condition of a certain total deformation amount, a strain path is optimized through a staged multi-pass multi-direction forging technology, and three-dimensional uniform deformation and dynamic recrystallization regulation and control are achieved in combination with a gradient temperature control strategy; compared with a traditional one-way forging and single-stage temperature control process, composition segregation can be remarkably reduced, the three-way structure uniformity is improved, and the subsequent forging performance is more stable. Through heat treatment-forging process coupling regulation and control, collaborative optimization of high strength, high ductility and excellent high-temperature performance is achieved. The method is particularly suitable for high-temperature and high-stress environments such as aero-engine hot end parts, and a reliable process scheme is provided for preparation of high-performance nickel-based alloy forgings.

The utility model discloses a cold heading device for fastener machining. The cold heading device comprises an operation table, a driving box is fixedly installed at the top of the operation table, a transverse plate is fixedly installed at the top of the driving box, a rotating disc is rotatably installed at the top of the transverse plate, eight cold heading holes distributed in an annular array are formed in the rotating disc, and a fixing plate is fixedly installed on the left side of the transverse plate. The automatic feeding device is reasonable in design, a spring can be used for pushing a push plate to clamp a workpiece to be machined, an electric push rod is used for pushing the corresponding workpiece into a discharging hole, so that the workpiece freely falls into a cold upsetting hole below, feeding is completed, the tooth number difference between an outer gear ring and an incomplete gear can be used for controlling a rotary disc to rotate by 45 degrees every time a motor rotates by one circle, and the workpiece can be automatically machined. Therefore, workpieces can be conveniently placed, machined and discharged into the eight cold heading holes in sequence, manual placing and picking operation is replaced, the risk of accidental injury is reduced, time and labor are saved, and the machining efficiency is improved.

A method for automatic calculation of a pass schedule in the radial forging of steel tubes in a radial forging machine is disclosed. The forging machine includes at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted for synchronous forging operation over at least a partial length of the workpiece and / or the tube. Starting parameters for the forging process, preferably radial forging process, are entered into a pass plan calculation program and target parameters for the radial forging process are defined. The pass plan calculation program calculates a pass plan or a forging sequence on the basis of these start and target parameters.

The invention relates to the technical field of forging equipment, and discloses large forge piece forging equipment and method.The large forge piece forging equipment comprises a mounting frame, a forging furnace used for heating a forge piece body is arranged on one side of the mounting frame, a forging assembly is arranged on the mounting frame, and the forging assembly comprises a power motor; according to the large forge piece forging equipment and method, in order to enable the device to meet the forging requirement of a nuclear island containment mechanical penetration piece high-precision forge piece, the forging assembly is arranged, the forging assembly is matched with a power motor to drive a threaded rod to rotate and drive a connecting block, a sliding block and a movable frame to move along a sliding rail, and universal wheels assist sliding to reduce resistance; the position of the forge piece can be adjusted according to forging requirements, hydraulic equipment pushes the clamping block to be matched with the attaching block to stably clamp the forge piece, the servo motor drives the U-shaped frame to finely adjust the angle of the forge piece, it is guaranteed that the forge piece is evenly stressed, and the hydraulic impact device drives the forging hammer to conduct upsetting, drawing-out and punching operation on the forge piece in the containing groove.

This utility model relates to the field of bearing processing technology and discloses a bearing press for convenient positioning. The positioning assembly consists of a one-way threaded rod, a motor, a first bevel gear, a first slide rod, a first moving block, a first arc-shaped plate, a two-way threaded rod, a second bevel gear, a second slide rod, a second moving block, and a second arc-shaped plate. The one-way threaded rod is rotatably mounted inside the operating table, the motor is fixedly mounted on the side of the operating table, the first bevel gear is fixedly mounted on the surface of the one-way threaded rod, and the first slide rod is fixedly mounted inside the operating table. This convenient bearing press, by starting the motor to rotate the one-way threaded rod, can drive the first arc-shaped plate to move. Under the action of the first and second bevel gears, the two-way threaded rod can be rotated, which can drive the second arc-shaped plate to move. Under the combined action of the first and second arc-shaped plates, the bearing can be positioned, resulting in good performance.

The application provides a variable wall thickness hollow beam forming process, and belongs to the technical field of vehicle anti-collision beams. In the variable wall thickness hollow beam forming process, the continuous change control of the wall thickness and the pipe diameter of the metal pipe is realized through a hammer forging step and a reducing step. The reducing pipe blank is bent through a bending step, so that the control of the beam body trend is realized. Through a preforming step, the preset of the beam body cross section shape is realized, and the forming of the beam body is realized through a hot gas expansion forming step. The specific cross section shape of the beam body can be controlled by the die used in the hot gas expansion. Compared with the traditional roll forging, bending, pre-forging and final forging mode, the process flow is optimized. The sleeve pipe is sleeved on the transition section with large bearing force, so that the strength of the place can be increased. The hollow beam rotary forging equipment can quickly realize the hammer forging step and the reducing step. The anti-collision beam produced by the above-mentioned variable wall thickness hollow beam forming process has high structural strength and can realize light weight.