3899results about "Forging/hammering/pressing machines" patented technology

A surgical stapler anvil provides an expanded leg-receiving target area for a staple forming pocket in a compact staggered array by narrowing the lateral width of the leg-clinching portion of a laterally adjacent pocket. Advantageously, the lateral spacing between adjacent rows of staple forming pockets can remain small, while the leg-receiving target area for laterally adjacent rows of pockets is significantly expanded. The staple forming pockets include two mirror image leg-forming cups. The cups are longitudinally aligned with their respective ascending leg clinching portions adjoining in the center of the pocket. Laterally spaced guide surfaces extend upwardly and outwardly from the clinching surface at the bottom of the cup to define an expanded leg-receiving target area at the distal ends of the pocket. Substantially planar laterally outward portions of the guide surface intersect with the guide surface of a laterally adjacent pocket to form a non-linear ridge.

The object of the present invention is to provide a method and an apparatus for manufacturing a stator to improve accuracy in inserting conductor segments (3, 31, 32) into slots (2). The apparatus according to the present invention comprises a conductor holder (21, 22) holding the conductor segments (3, 31, 32) and an axial-moving-mechanisms (214) moving the conductor holder (21, 22) relative to a stator core (1) in an axial direction. The conductor holder (21, 22) holds straight portions (31b, 31c, 32b, 32c) of the conductor segments (3, 31, 32) to be inserted into the slots (2) from one end of the stator core (1).

A system and process for stamping parts having tolerances below 1000 nanometers. The inventive system and process is particularly suited for producing optoelectronic parts. The system includes a stamping press and one or a progression of stamping stations for supporting a punch and die. The stamping stations are designed to maintain substantial alignment of the punch and die with minimal moving components. The stamping station includes a shaft for rigidly guiding the punch to the die. The stamping press is capable of providing the punch with the necessary force to perform the stamping operations. The system includes an interface system for interfacing the force of the press with the punch, while simultaneously structurally decoupling the press from the punch. The system also includes a locating sub-plate, for locating the stamping station in alignment relative to each other, and means for in-line machine stock material before entry into the stamping stations.

The process of making large irregular ring blank of high temperature alloy includes the steps of heating the high temperature alloy rod to deformation temperature and upsetting into solid cake blank, punching the central hole to obtain hollow cake blank, heating the hollow cake blank to deformation temperature and rolling into ring blank with rectangular cross section, heating the ring blank to deformation temperature and setting in to outer expanding mold and on bottom mold plate, applying pressure to extrude the cake blank with the outer expanding mold and the inner expanding mold for deforming to fill the mold cavity, and demolding to obtain the irregular ring blank. The process of the present invention is used mainly for making ring blank of hard-to-deform alloy and with irregular cross section.

The invention relates to a method for shaping the vehicle hub and relative device. Wherein, it comprises following steps that casting blank; uniform processing; pre-shaping blank; compressing; compressing the front rim; expanding opening and folding the edge at the back rim. The invention is characterized in that: the casting blank via pre-shaping is made into hollow blank; the concave and convex moulds in the compressing step and the compressing front rim step are integrated, while the convex mound contains core axle; the compressing step compresses the hollow blank in the mould via core axle to obtain the cylinder element whose bottom has holes; the step that compressing front rim uses metal diversion to stuff and shape; the step that expanding opening and folding the edge of back rim uses integrated convex mould and separated concave mould to expand opening, fold edge an shape the back rim. The invention can simplify the process, reduce device number, reduce the shaping force, reduce the energy consumption, and reduce the producing cost. The invention is mainly used to produce aluminum and magnesium alloy hub.

The invention relates to bar material forging machining method of titanium alloy, particularly to a forging machining method of large-sized bar materials of TC4 (Ti-6Al-4V) titanium alloy. The forging machining method is characterized by comprising the following steps of step 1, performing cogging forging, step 2, performing intermediate forging above a phase transformation point, step 3, performing intermediate forging below the phase transformation point, step 4 and step 5, performing finished product forging and obtaining the phi 200 to 300 mm and 2000 to 3000 mm length of large-sized bar materials of the TC4 titanium alloy finally. Compared with the prior art, a large-sized ingot casting and a large-tonnage forging device are not required and the industrialized production can be achieved through an ordinary industrial 3 ton ingot and a small-tonnage forging press and the equipment investment is small, only a 3 tons of electric arc furnace and a 3000 tons of forming oil press which is matched with the electric arc furnace need to be invested in the phi 600 of 3 ton ingot, the small-tonnage forging press such as a 1600 tons of forging press needs to be invested in the forging process, and accordingly the equipment investment is significantly reduced.

Method and apparatus for producing a thin walled tubular product with thickened flange. A first stage metalworking (drawing) of a circular plate material A is done by using a first die set 22 having a conical die 24 and a drawing punch 26 is done in a manner that the end of the blank plate is remained on the conical surface 24-1 of the die, so that a semi-finished tubular product A1 with a inclined flange A1-1 is obtained. Then, a second stage metalworking (drawing) of the semi-finished tubular product A1 is done by a second die set 32 having a shaping punch 34 and a restraint die 36. The semi-finished tubular product A1 is held by the restraint die 36 and the shaping punch 34 is introduced into the semi-finished tubular product A1 for effecting a wall thickness reduction under ironing principle while forming a stepped portion. Simultaneous with the execution of the second stage drawing, a flattening of the flange is done while restriction diameter expansion by a wall 40, thereby obtaining a thickened flattened flange A2-3.

The invention relates to a cold forging technology for a gear shaft; the cold forging technology is characterized in that a new technology of the cold forging forming of the inside and outside and split flow forging, a volume split flow space is arranged between the gear shaft diameter and a concave die, the metal flow resistance is reduced and the unit extruding force carried by the die is lowered by split flow; high-strength die steel and split structure are adopted to produce a gear hole forming die; the concave die is produced by adopting three-layer sleeve prestressed structure so as to improve the compression resistance of the die; a punch is made from an alloy steel material and used for the cold forging and precision forming of a complex gear form blind hole, which improves the forming quality and production efficiency of the gear hole, and lowers the consumption of the raw materials markedly. The cold forging technology of the invention has the advantages of achieving the smooth forming of the gear form blind hole, improving the production efficiency greatly, and improving the quality of the gear hole and the qualification rate of the product markedly.

A blade punch for forming teeth in a connector plate, the blade punch comprising an elongated blade having a metal working tip at one end and a shank at the other end. The blade has an elongated cross-section defined by opposing parallel spaced planar side walls and opposing ends. Each end comprises a major end wall and a minor end wall which converge to end wall intersections, where the end wall intersections are eccentric to a plane parallel to and midway between said side walls. Each end wall intersects a side wall at an obtuse angle. The metal working tip has opposed air cut faces abutting one another along an air cut edge and opposed first and second forming faces, each of the forming faces abutting one of the air cut faces along an exterior edge. Each of the air cut faces is bordered by a portion of one of the minor end walls, a portion of one of the side walls, the air cut edge, and one of the exterior edges. Each of the forming faces is bordered by a portion of one of the major end walls, a portion of one of the minor end walls, a portion of one of the side walls, and one of the exterior edges. A forming angle between 50 DEG and 60 DEG is formed between the first forming face and the exterior edge bordering the second forming face in a plane normal to the first forming face.

The invention relates to a multi-station automatic feeding method and device. The feeding device is characterized by comprising an execution mechanism, a guiding mechanism, a driving device, a sensing limiting device and a control system, wherein the execution mechanism, the guiding mechanism, the driving device and the sensing limiting device are arranged on a frame; the execution mechanism comprises two walking beams which are arranged in parallel; a plurality of pairs of clamping devices are alternately arranged on the two walking beams; the guiding mechanism comprises feeding guide rails and feeding guide grooves, which are respectively arranged at two ends of the walking beams; a clamping guide groove which slides along one clamping guiderail is vertically fixedly arranged in the middle of each feeding guide groove; two ends of the clamping guide rails are respectively fixedly arranged on lifting guide grooves which slide along lifting guide rails; the bottom ends of the two lifting guide rails are respectively fixedly arranged on the frame; the driving device comprises a feeding driving device, a clamping driving device and a lifting driving device; the sensing limiting device comprises a feeding sensing limiting device, a clamping sensing limiting device and a lifting sensing limiting device; and the output end of the control system is connected with the sensing limiting device while the output end is connected with the driving device.

The invention relates to a forging manipulator lifting mechanism with inclined rear suspension rods in the technical field of the mechanical engineering, which is characterized in that the upper ends of two front suspension rods (12) are respectively connected at the lower ends of two front connecting pieces (9) by rotating hinges; the upper ends of the two front connecting pieces (9) are respectively connected on both sides of a movable frame (10) by rotating hinges; the movable frame (10) can move left and right on a front sliding rod (7); two rear suspension rods (16) are arranged symmetrically right and left in an inclined mode; the upper ends of the two rear suspension rods (16) are respectively connected at the lower ends of two rear connecting pieces (17) by rotating hinges; the upper ends of the two rear connecting pieces (17) are respectively connected on both sides of a rear sliding rod (2) by rotating hinges; two pitching linear drivers (4) are horizontally arranged on the top of a lifting arm front and back; and the front ends of the two pitching linear drivers (4) are respectively connected on both sides of a front lifting arm (6) by spherical hinges, while the rear ends thereof are respectively connected on both sides of a rear lifting arm (1) by spherical hinges. The forging manipulator lifting mechanism with the inclined rear suspension rods has the characteristics of high bearing capability, easy installation, long service life and the like and is suitable for forging operation of large-scale/ultra large forgings.

An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail the bending apparatus. A method is provided for learning motion control offset values, and for eliminating the need for superfluous sensor-based control operations once the motion control offset values are known. The planning system may be used for facilitating functions such as design and assembly system, which may perform designing, costing, scheduling and/or manufacture and assembly.

A middle-duty and heavy-duty automobile knuckle stamp forging extruding compound technology overcomes the disadvantages of low material utilization and large device investment of the traditional production technology, utilizes flexibility of preforming by a stamping hammer and structure characteristic of a press extrusion die and adopts stamping hammer production technology and press extrusion compound technology. The main technical scheme includes a series of technical measures of vertically splitting of blank material by mould with V-shaped cutting edge and locally enclosed structure, preforging of cavity damping stripe, finish forging of locally enclosed structure, hot extrusion forming of steering space and the like, parameter requirements and corresponding moulds and devices. The invention has the characteristics that device investment of stamping hammer production technology is small, structure is simple, and equipment manufacturing period is short; production technological flow is reasonable and processing is easy; and the invention also has the characteristics that product quality is good and productivity is high; and material utilization is obviously higher than that of any original knuckle processing technology and production cost is greatly reduced.

The invention provides a device and a process for the hot pressing and molding of an amorphous alloy. The device is provided with a vacuum, inert gas or nitrogen gas protective environment, and a mould set and an induction heating coil positioned in the environment; the mould set comprises an upper mould, a lower mould and a molding mould; the induction heating coil is at least wound in a peripheral space of the molding mould and is not contacted with the molding mould; and the process sequentially comprises the following steps in the vacuum, inert gas or nitrogen gas protective environment: blank placement, induction heating, hot pressing and molding, cooling, and mould extraction. By adopting an induction heating mode, the process can rapidly concentrate on heating a molded blank to Tg temperature above, and carry out the hot pressing and molding within the temperature range between Tg and Tm or the Tm temperature above; a molding strain rate can reach between 10 and 10S; and the process has high processing efficiency and can effectively prevent crystallization of the amorphous alloy in the molding process within shorter temperature rise time.

The present invention discloses an adjustable hydraulic press with both upper and lower double action, specially suitable for the cylindrical gear formed by stamping or expanding, closed forging and the metal cold forming or metal hot forming of punching, finishing, flanging and drawing of sheet materials. The press comprises four columns, an upper beam, a main slide block, a hold down slide block, a fixing worktable, a floating worktable and a lower beam. The hydraulic chamber of master cylinder fixed in the upper beam communicates to the hydraulic chamber of the auxiliary cylinder, the plunger of master cylinder is connected to the main slide block and drives it. The hydraulic chamber of gas-liquid power accumulator fixed in the main slide block communicates to the hydraulic chamber of hold down cylinder, the plunger of hold down cylinder is connected to the hold down slide block and drives it. The plunger of ejecting cylinder fixed in the lower beam is connected to the floating worktable and drives it. The hydraulic press of the invention simplifies the hydraulic system of the existing hydraulic, improves utilization rate of energy, production efficiency and working accuracy of workpiece.

A multi-direction forging technique and die for a 7A04 aluminum alloy cartridge receiver body part belongs to the technical field of metal material plastic forming and aims at effectively overcoming the problems of the existing opening-die forging technique and isothermal-die forging technique. The order of the multi-direction forging technique of the invention includes the steps of baiting, heating, rough making, reheating and multi-direction forging. The multi-direction forging relates to (1) using a multi-direction die forging die to pre-forge and form a heated 7A04 aluminum alloy roll forging rough;(2) then suing the multi-direction die forging die to realize finally forge to forge a die forging element. The invention multi-direction forging die includes symmetrical upper half and lower half concave model, a pre-forging convex model, a final-forging convex model, a fixing plate for the pre-forging convex model, a fixing plate for the final-forging convex model and a model frame consisting of an upper model seat and a lower model seat. The invention has the advantages of reasonable technique flow, stable technique parameter and performance, simple structure of the die, convenient manufacture, mounting and use, reliable work. And the invention can greatly reduce the friction resistance between a forging element and a die chamber, improve the surface quality of the forging element and remarkably improve the service life of the die.

The invention discloses a die forging method of a high-temperature alloy; the method comprises the following steps: a) die forging stock is in thermal insulation and heat preservation, and clad with thermal insulation cotton; b) heating of the die forging stock: the die forging stock clad with the thermal insulation cotton is heated in a heating furnace and preserved at a temperature, the heating temperature is 900-1200 DEG C, and the heat preservation time is not less than 30 minutes; c) heating of a die: the die is put into a press, and heated to the working temperature of 600-650 DEG C in the heating furnace of the press; d) die forging: the die forging stock is taken out of the heating furnace and sent to an oil press or a hydraulic press for die forging, the amount of deformation is 40-80%, and the die forging speed is 1-5mm/s. The die forging method of the invention solves the problem of slow heating-up of the die forging stock in the heating furnace resulting from the existing 'compound jacketing' mode, improves the heat preservation effect of workpiece, and lower the cost for the application of heat insulating materials; the die forging method adopts a lower die temperature, which sufficiently eliminates the problems of short service life of the hot press forging die and great production difficulty, and facilitates producing the alloy forged pieces conforming to finecrystalline requirements.

A fastener includes a connecting portion and a head portion connected with the connecting portion. The head portion defines an engaging hole and includes a plurality of protruding teeth separately formed on an inner peripheral wall of the engaging hole, respectively, toward a central axis of the engaging hole of the head portion, and a plurality of recesses are formed between every two adjacent protruding teeth, respectively. The head portion further includes a plurality of resisting projections separately formed on the inner peripheral wall of the engaging hole, toward the central axis of the engaging hole, and received within the corresponding plurality of the recesses of the head portion, respectively. The present disclosure further provides a driver engaging with the fastener and a punch producing the fastener.

A blank cut from a strip of hardenable hot-formed steel is heated in a furnace to a temperature which is smaller than an Ac₃ transformation point in an iron carbon diagram. A first region of the blank is then heated in a conductive heating station to a temperature above the Ac₃ transformation point and subsequently hardened in a hot forming and hardening tool to produce a steel part with at least two microstructured regions of different ductility.

An apparatus for forming a metal article includes a station which receives and supports a workpiece. The station has a source of electrical current and a source of a fluid. The station further includes a first and a second electrode clamp. Each clamp is in electrical communication with the source of current and in fluid communication with the source of fluid. The clamps engage a workpiece and deliver an electrical current and a fluid thereto. The system includes an actuator mechanically associated with at least one of the clamps. The actuator is operable in combination with a clamp to apply mechanical force to the workpiece. The system is operable to selectably control the temperature profile and/or ambient conditions of a workpiece during forming or processing steps. Disclosed are specific systems including modular systems. Also disclosed are methods for using the systems.

A method and apparatus for forming shaped articles such as heat exchanger plates and fuel cell plates from a strip of material. The apparatus includes a feed mechanism for feeding the strip; one or more forming devices which form peripheral features and/or discontinuities in the strip; and an alignment device which maintains constant spacing between the discontinuities and thereby avoids accumulation of incremental feeding errors. Preferably, the strip is re-aligned once for each plate produced. The alignment device comprises a pilot pin and a pilot hole punch for forming index holes in the strip, and can be integral with or separate from the forming devices. One preferred apparatus utilizes a forming device comprising a plurality of punches mounted on a reciprocating frame or gantry structure.

The invention relates to a two-die three-punch upsetter. A third punch die is a trimming die or a forging and pressing die and is arranged on a large slide block, and a first punch die and a second punch die are arranged on a lifting plate; a first concave die corresponds to the first punch die and the second punch die, and a second concave die corresponds to the third punch die; and axis of the second concave die and the third punch die are oppositely kept on the same straight line all the time. A working method comprises the following steps of: forming a workpiece by rotating a crank shaft twice; when the large slide block is upset for the first time, upsetting a blank into a primary upsetting semi-finished workpiece by the first punch die and preserving the semi-finished workpiece in the first concave die; upsetting a secondary upsetting semi-finished workpiece into a finished workpiece by the third die and ejecting the finished workpiece out; when the large slide block upsets for the second time, upsetting the primary upsetting semi-finished workpiece into the secondary upsetting semi-finished workpiece by the second punch die and ejecting the secondary upsetting semi-finished workpiece out; and air beating by the third punch die. The invention can achieve the functions of various upsetters, such as a one-die two-punch upsetter, an outer hexangular trimming machine, a three-die three-punch upsetter, and the like.

The invention discloses a flat die forging high slenderness ratio ultralimit upsetting method and a flat die forging high slenderness ratio ultralimit upsetting anvil. The upsetting method comprises the following steps: positioning an upper concave anvil and a lower concave anvil, and guaranteeing superposition of a central line of the upper concave anvil and a central line of the lower concave anvil; suspending circular cast ingots of which the slenderness ratio is more than 3 on the lower concave anvil, and adjusting the position to guarantee superposition of central lines of the aluminum alloy circular cast ingots, the central line of the upper concave anvil and the central line of the lower concave anvil; and allowing a power mechanism to drive the upper concave anvil to move down after the adjustment is over, and slowly applying pressure on the aluminum alloy circular cast ingots, so that the aluminum alloy circular cast ingots are stably upset and do not have the defects of bending, folding and the like. The invention breaks through impassable rules of aluminum alloy upsetting in the recent hundred years, and makes the slenderness ratio of the aluminum alloy circular cast ingots be more than 3 and reach 3.3 (phi 820*2,700mm), namely the length of the circular cast ingots increases 240 mm and the weight of the circular cast ingots increases 360 kg after the length of phi 820 mm circular cast ingots increases from 2,460 mm to 2,700 mm, so that the invention provides enough metal margin and creates a loose environment for development of aluminum alloy annular forged pieces.

The invention discloses a hot extrusion forming process of half-shaft casings, comprising the following steps: 1) selecting proper round steel according to design products and heating the round steel to 1100-1250 DEG C, 2) carrying out forward extrusion and upsetting, 3) carrying out backward extrusion and positioning, 4) carrying out shallow punching and performing, and 5) carrying out deep punching, finish forging and forming. The invention also discloses a special device for implementing the hot extrusion forming process, comprising upsetting tools, positioning tools, tools for shallow punching and performing and tools for deep punching, finish forging and forming, which are arranged from left to right in sequence. The process has four stations. Each station has enough cooling and lubricating time. Not only can the special device not be deformed after long-term use and the workpieces can not have the problem that inner hole inclination leads to inner and outer coaxiality difference, but also the special device is protected to reduce damage while the capacity is increased.

A datum is created in an axle housing. A finished brake flange is welded to the axle housing with reference to the datum to make an axle sub-assembly. The axle sub-assembly is fixed to a first part of a machine. A finished spindle is supplied to a second part of the machine. The spindle is welded to the axle sub-assembly with reference to the datum. A dial indexing table is rotated to a first position. An axle is placed on the dial indexing table with its longitudinal axis oriented vertically. The dial indexing table is rotated to a second position, wherein the axle aligned with a CNC machine. A machining operation is performed on the axle with the CNC machine. The dial indexing table is rotated to a third position. The axle is removed from the dial indexing table. An axle and an apparatus for manufacturing an axle are described.

This invention relates to a load automobile hub axle tube whole fiber forging and shaping process and its mould. It is characterized by the following: adopting solid material; finishing hub axle tube surface and deep hole extrusion shaping to get the whole fiber metal flow wire along axle direction and the inner hole is shaped by extrusion without process.

A fastener with a recess head wherein the drive head has four lobular recess channels. Each channel comprises a first wall, a second wall, a bottom surface and a recess sidewall. The first and second walls have portions opposing each other and a constant radius of curvature to form a continuously and smoothly forming wall of the channel. A torque producing driver tool is defined with cross sectional signature substantially complementary in size and shape of the recess of the drive head of the fastener for matable engagement. A recess punch for manufacturing the fastener is also defined and comprises a punch holder and a punch pin integral with the holder.

The invention provides a chambering -forging forming method for an aluminum alloy hub with a complex structure and a die thereof. The forming method comprises the steps of: preparing for materials; heating blanks; upsetting; mould-pressing and chambering a rim. The die for realizing the chambering-forging forming method for the aluminum alloy hub with the complex structure comprises a forging die and a rim-chambering die, wherein an upper die of the forging die consists of an upper die body and an upper die core which are sequentially nested and mounted, a lower die consists of a lower die body, a lower die core and an ejector rod which are sequentially nested and mounted; and the bottom and the side wall of the assembling part of the lower die core and the lower die body are uniformly provided with 4-8 R3 penetrating exhaust grooves, the rim-chambering die consists of an upper chambering die and a lower chambering die, and the size of a cavity of the upper chambering die is same as the size of the cavity of the upper die core of the forging die. The invention realizes once-heating forming; a non-burr forging and rim-chambering forming process is adopted, thus two trimming procedures are eliminated, material utilization rate is improved, and number of equipment is reduced; and the rim-chambering die has a simple structure and is convenient for operation.

The invention discloses a fine forging forming method of spiral bevel gears, comprising the steps of: preparing for a material bar satisfying technical design requirements; heating the material bar to 1150-1180 DEG C; upsetting and punching as well as ring-enlarging the material bar on a press; pre-forging and forming in a pre-forging die on a multistage hot die forging press to obtain a pre-forging blank with pre-forging teeth, wherein the curved tooth spiral angle beta of the pre-forging die is 8-12 degrees smaller than that of a finish forging die; arranging the pre-forging blank on the multistage hot die forging press, and finish-forging and forming in the finish forging die; after a spheroidizing annealing treatment, cleaning the surface by sand-blasting, and phosphating and saponifying the surface; and finishing tooth profiles at normal temperature in a hydraulic machine. The method provided by the invention adopts a gradually forming manner consisting of pre-forging first and finish forging at last, therefore, the radial flow of the blank is greatly reduced, the side pressure of the blank to the tooth profile die cavity is reduced, the tooth profiles of the curved teeth of the forging die are prevented from being damaged, the service life of the forging die is prolonged, the production efficiency is improved, and the production cost can be efficiently reduced.

The die changing apparatus for a plate reduction press machine, comprises an upper die support holder 28a and a lower die support holder 28b that are arranged vertically on opposite sides of a transfer line, and support holder guide rails 31 installed on the upper die support holder and extending substantially horizontally in the lateral direction of the transfer line, and an upper die 29a and a lower die 29b are mounted on the upper and lower die support holders, respectively using the rollers onto the dies, fixing devices 30 that fix the upper and lower dies on the upper and lower die support holders, respectively, die fastening members 38 which are placed on each side of the upper and lower dies, opposite each other in such a manner that they can be fastened to both dies, and a die changing mechanism that can move one of the die fastening members in a direction perpendicular to the transfer line.