183results about "Metal rolling" patented technology

The invention discloses a preparation method of a high-impact-toughness super-large-specification Ti80 titanium alloy ring forging, and belongs to the technical field of high-quality titanium alloy materials. The method comprises the following steps: preparing a cast ingot; the prepared cast ingot is subjected to multi-heating-number forging, and a cake blank is obtained; the prepared cake blank is subjected to ring rolling forging, and an annular blank is obtained; and the prepared annular blank is subjected to heat treatment, and the titanium alloy ring forging is obtained. According to the titanium alloy ring forging process adopted by the invention, on the premise of eliminating the longitudinal welding seam, the overall structure uniformity of the pressure-resistant shell can be ensured, and the mechanical property is stable. By designing a reasonable processing route and formulating optimal processing parameters, the uniformity of the material structure is improved, and the manufacturing safety and reliability of the pressure-resistant shell are improved. The method is suitable for preparing the Ti80 titanium alloy ring forge piece with the outer diameter of 4000-10000 mm, the wall thickness of 100-500 mm and the piece weight larger than or equal to 8 t.

The invention discloses a rolling method of a special-shaped ring piece for a large GH4738 alloy casing of an aero-engine, which comprises the following steps: S1, preparing a ring blank: blanking, upsetting, punching, chambering and pre-rolling raw materials in sequence to prepare the ring blank; s2, special-shaped blank manufacturing is carried out, multi-pass preforming is carried out on the ring blank through a moulding bed and a plurality of special-shaped punches with different punch angles, and the inner and outer diameter contours of the ring blank are made to be close to the special-shaped contour of the target cartridge receiver part step by step; s3, special-shaped ring rolling is conducted, specifically, a special-shaped main roller and a special-shaped core roller are used for rolling the ring blank subjected to special-shaped blank making in the step S2, and a near-net-shaped formed special-shaped ring piece is obtained; and S4, heat treatment and machining are conducted on the special-shaped ring piece manufactured in the step S3. Through the optimized special-shaped blank making and special-shaped ring rolling process, near-net forming of the casing forge piece is achieved, the allowance of a product is optimized, and the utilization rate of raw materials is increased.

The invention discloses an electric auxiliary roll forming device, and relates to the technical field of annular part plastic processing, the electric auxiliary roll forming device comprises a rolling device and an electric auxiliary device, the rolling device is provided with a conductive core roller and a feed roller, the core roller is sleeved with a to-be-formed annular blank, and the core roller and the feed roller are oppositely arranged on the annular inner side and the annular outer side of the annular blank; the axes of the ring blank, the core roller and the feeding roller are located on a first plane, a common vertical line of the axes of the ring blank, the core roller and the feeding roller is arranged on the first plane, and the feeding direction of the feeding roller is consistent with the common vertical line; the electric auxiliary device comprises a first carbon brush and a second carbon brush, the first carbon brush and the second carbon brush are suitable for being electrically connected with two electrodes of an external power source respectively, the first carbon brush makes contact with the axial end of the core roller, the first carbon brush is electrically connected with the core roller, the second carbon brush makes contact with the axial end of the feeding roller, and the second carbon brush is electrically connected with the feeding roller. Compared with the prior art, the annular part can be electrically heated in an auxiliary mode, and the performance of the plastically-machined annular part is good.

The ring rolling mill for producing the flange comprises a base and a vertical rod extending upwards from the upper wall of the base, and further comprises a supporting plate, a driving wheel, a supporting wheel and a pressing wheel, the supporting plate is fixedly connected to the upper portion of the vertical rod, the driving wheel is rotationally connected to the middle of the end face of the supporting plate, and a sliding groove is formed in the end face of the supporting plate. Sliding blocks are arranged in the sliding grooves in a sliding mode, the sliding blocks are movably adjusted in the length direction of the sliding grooves through driving assemblies, the supporting wheels are slidably adjusted in the length direction of the sliding grooves through the sliding blocks, the supporting wheels and the driving wheels are arranged on the same side, and a connecting plate is fixedly connected to the upper wall of the supporting plate; the pressing wheel is movably connected to the bottom of the connecting plate through an adjusting assembly and located above the driving wheel. The utility model belongs to the technical field of flange production equipment, particularly relates to a ring rolling mill for flange machining, and aims to enhance the stability of rotating rolling of annular workpieces.

The utility model discloses a numerical control rolling ring for rolling a slewing bearing, and belongs to the technical field of slewing bearing machining equipment. A numerical control rolling ring for slewing bearing rolling comprises a base, a mounting frame is arranged at one end of the base, a positioning plate is mounted in the mounting frame, a driving motor is arranged on one side of the positioning plate, the output end of the driving motor is fixedly connected with an adjusting assembly, and a compression roller assembly and a supporting air cylinder are mounted on the adjusting assembly. According to the numerical control rolling ring for slewing bearing rolling, the positions of the driving motor and the adjusting assembly are fixed through the positioning plate, the driving motor is used for driving the sliding block to move linearly at the same time, the requirement for various rolling diameters can be met, the pressing roller assembly is installed on the sliding block, and the rolling motor drives the rotating piece to drive the rolling roller to rotate; and meanwhile, the angle of the rolling roller can be changed on the rotating piece, the rolling roller can incline under the control of the supporting air cylinder, and the requirement for rolling multiple curved surfaces of the slewing bearing is met.

The invention belongs to the technical field of ring piece rolling forming and manufacturing, and discloses a design method for a complex special-shaped ring rolling preformed blank with inner and outer grooves based on metal flow regulation and control. The shape of a preformed blank is designed to be a special-shaped section annular blank with the height of an outer side groove lower than that of an outer side groove of a target ring piece; the deformation amount of the pre-rolling step and the deformation amount of the final rolling step are distributed, the total deformation amount, the deformation amount of the pre-rolling step and the deformation amount of the final rolling step in the ring rolling process are determined through the outer diameter ratio, and the numerical value relation among the three deformation amounts is met; on the basis of the deformation distribution result, various size parameters of the preformed blank are determined, and the size parameters comprise the height, the outer side transition area bevel angle, the outer side groove depth, the outer side groove outer diameter, the end face outer diameter and the inner diameter. According to the method, metal flowing regulation and control are achieved through multi-step rolling, metal is effectively promoted to fill the cavity, the defect of under-filling is avoided, and the material utilization rate and the preformed blank design efficiency are improved.

The utility model provides a walking adjusting device of an axial and radial ring rolling mill, which relates to the technical field of mechanical structure design, and comprises a main plate, the inner wall of the main plate is in sliding connection with a moving block, the inner wall of the moving block is fixedly connected with a fixed rod, the outer wall of the main plate is provided with a sliding groove for the fixed rod to slide, and the outer wall of the fixed rod is in sliding connection with an adjusting disc. A second motor is fixedly connected to the inner wall of the adjusting disc, a rotating rod is fixedly connected to the driving end of the second motor, the outer wall of the rotating rod is rotationally connected to the inner wall of the adjusting disc, and a rotating disc is fixedly connected to the outer wall of the rotating rod. According to the utility model, the structures such as the threaded groove and the turntable are adopted, and the turntable is driven by the motor to rotate so as to drive the whole adjusting disc to be accommodated in the open groove of the main board, so that the occupied space area of the device when the device is not used is reduced, and the device can be further protected from being damaged due to external collision; and therefore, the practicability of the device is higher.

The utility model provides a conical roller transmission system of an axial and radial ring rolling mill, which relates to the technical field of ring rolling mills and comprises a main body mechanism, a lower conical roller mechanism and an upper conical roller mechanism are arranged in the main body mechanism, the main body mechanism comprises a side block, a mounting plate is arranged at the top end of the side block, and a conical roller is arranged on the mounting plate. Fixing plates are fixedly mounted on the inner walls of the side blocks, the adjusting precision and operation stability of the conical rollers are improved, axial fine adjustment of the lower conical roller is achieved through the linkage design of a hydraulic cylinder A and a threaded rod, and the axial displacement deviation of the conical rollers can be effectively controlled in combination with guide constraint of a limiting rod and a sliding groove; a hydraulic cylinder B is adopted for driving a linkage locking mechanism of a convex block B and a clamping rod to be matched with the buffering design of a soft cushion B, so that uniform application of radial pressure is guaranteed, rigid impact among components is reduced, the disassembly and assembly process of the conical rollers is simplified through sliding fit of a limiting block and a limiting plate and modular design of a baffle and a pull block, and the maintenance difficulty is reduced.

The application discloses a process for shell flange rolling forming, and relates to the shell flange manufacturing field.The technical scheme is characterized by comprising the following steps: step S1, blanking;step S2, heating;step S3, upsetting and drawing: the blank is drawn for the first time, then the blank is upset for the first time, then the blank is drawn for the second time, the blank is inverted into an octagonal shape, the blank is upset for the second time, and the outer edge of the blank is rounded;step S4, punching;step S5, spinning;step S6, heating by returning to the furnace: the blank is heated and kept in the furnace;step S7, ring rolling: the ring rolling is carried out by using a special-shaped main roller and a special-shaped core roller, the initial stage of rolling is a blank rounding stage a, the speed is increased to carry out a forming stage b, the shape of the forged piece is completely formed, the forged piece enters a direct growth stage, the core roller feeding speed is reduced, and the forged piece enters a shaping stage c;the rolling curve is an exponential function, wherein x is a radial rolling amount, and y is an axial rolling amount.The application has the advantages of improving the material utilization rate and the quality of the shell flange.

The application provides a wind power flange rolling ring adjusting device and a rolling ring method thereof, and relates to the field of wind power flange processing. The device comprises a bottom plate, a central shaft located at the center of the bottom plate, a rolling mechanism located above the bottom plate, and a limiting mechanism located at the four sides of the bottom plate. The central shaft is rotationally installed on the bottom plate, and four groups of extrusion shafts are arranged in an annular array on the outer wall of the central shaft. The four groups of extrusion shafts can slowly expand outward, and the central shaft is driven to rotate by a power source. Thus, the extrusion shafts rotate along the inner wall of the flange forge piece, uniformly expanding the hole from the inside. Meanwhile, the outer wall of the flange forge piece is provided with limiting shafts, and the limiting shafts rotate along the outer wall of the flange forge piece with the central shaft. Through the extrusion of elastic members, radial extrusion is formed between the extrusion shafts and the limiting shafts. The rotation of the extrusion shafts and the limiting shafts ensures the uniformity of the deformation in the circumferential direction of the flange forge piece.

The utility model relates to the technical field of equipment protection, and discloses a pit flexible protection structure and a ring rolling machine, the pit flexible protection structure is arranged on the upper surface of a pit and comprises chain fixing pieces, an iron chain net and a rolling assembly, the chain fixing pieces are used for fixing the protection structure, and the number of the chain fixing pieces is at least two; the iron chain net is connected between the chain fixing pieces, and the iron chain net is composed of a plurality of iron chains; the rolling assembly is used for rolling on the iron chain net, and the rolling assembly comprises a rolling wheel fixing piece and a rolling wheel. The pit flexible protection structure is arranged on the upper surface of the pit at the working position of the ring rolling machine, the protection structure is simple in structure and convenient to operate, and it can be guaranteed that the ring rolling process of the ring rolling machine is conducted smoothly.

A ring rolling machine driven by a servo electro-hydraulic actuator comprises a machine body and a main roller arranged on one side of the machine body and driven by a speed reduction component to rotate, a vertical core roller component capable of freely rotating is arranged on one side of the main roller, and the core roller component is driven by a vertical hydraulic oil cylinder to ascend and descend. The other side of the surface of the machine body is provided with end face rollers which are driven by hydraulic oil cylinders to ascend, descend and move horizontally, the end face rollers are symmetrically arranged up and down, each hydraulic oil cylinder is correspondingly provided with a servo electro-hydraulic actuator, and control oil ways of the servo electro-hydraulic actuators are communicated with the corresponding hydraulic oil cylinders and used for controlling the corresponding hydraulic oil cylinders to stretch out and draw back. The hydraulic control system is composed of the servo motor two-way metering pump and the functional valve group, can accurately control the action of the oil cylinder, and can quickly respond according to the command requirement of a control system; the whole system outputs kinetic energy according to the requirements of the execution oil cylinder, no extra heat energy loss exists, and the purposes of energy conservation and accurate control are fully achieved.

The present application belongs to the technical field of metal plastic forming and forging, and particularly relates to a forming process for manufacturing ASTM A266 large ring forgings based on low-density steel ingots. The forming process comprises the following steps: taking a multi-rib steel ingot as raw material, cutting off the ingot tail end and the head end of the ingot; after heating the cut steel ingot, sequentially performing blind hole pre-pressing, upsetting, punching and mandrel hole expansion; adopting a staged rolling expansion process, stopping at 45%-50% of the finished product outer diameter in the first fire, and then performing intermediate reheat and second fire rolling expansion. The present application eliminates the inner diameter intensive defects of the raw material ordinary steel ingot from the source through the double compaction of "conical upsetting" and "mandrel compaction", and the physical removal of "large diameter punching". Through actual production verification, the UT flaw detection one-time qualified rate of the 30-ton ASTM A266 ring forgings produced by the process of the present application is increased from less than 25% to more than 95%.

The application discloses a method for improving the mechanical property of a titanium alloy ring forge piece and a ring forge piece prepared by the method, and belongs to the field of titanium alloy forging technology. The method for improving the mechanical property of the titanium alloy ring forge piece comprises the following steps: preparing a titanium alloy base material, heating the titanium alloy base material to 30-35 DEG C below a phase transition point, performing upsetting treatment to obtain an upset rod; heating the upset rod to 35-40 DEG C below the phase transition point, using a core shaft to perform punching forming to obtain a punched ring forge blank; heating the punched ring forge blank to 30-35 DEG C below the phase transition point, adopting a mandrel expanding method to perform expanding forming to obtain an expanded ring forge blank; heating the expanded ring forge blank to 40-45 DEG C below the phase transition point, performing radial-axial composite rolling to obtain a rolled piece; and performing annealing treatment on the rolled piece to obtain a target ring forge piece.

The present application belongs to the technical field of transmission equipment, and particularly relates to a kind of ring rolling machine taper roller transmission structure and method, including taper roller, reduction motor, transmission connection part, taper roller, reduction motor is installed on frame, the spindle of reduction motor is hollow structure, one end of taper roller installs extension section, the spindle of reduction motor is coaxial with the extension section of taper roller through shaft sleeve and is connected by transmission connection part to realize transmission connection;During transmission, two thrust bearings bear the axial force of taper roller, cylindrical bearing supports the extension section of taper roller in radial direction, effectively avoids the axial movement and radial swing of taper roller extension section, ensures accurate torque transmission, transmission is stable;Meanwhile, the connection mode of each component is detachable adaptation, and the maintenance and replacement of single component are facilitated, further reduce equipment failure rate, prolong the overall service life of transmission structure.

This application discloses a bearing ring forging raceway widening device, comprising: a housing, a bearing seat, a first motor, a rotating shaft, a support roller, a raceway rolling ring, a telescopic cylinder, a pressure frame, and a pressure roller. A material inlet is provided at the front of the housing. The bearing seat is fixedly connected to the rear of the housing. The rotating shaft passes through the bearing seat and is rotatably connected to it. The first motor is fixedly installed at the rear of the bearing seat, and its output shaft is fixedly connected to the first end of the rotating shaft. The support roller is coaxially fixedly connected to the second end of the rotating shaft. The telescopic cylinder is located at the top of the housing, with its output end facing downwards. The pressure frame is fixedly connected to the output end of the telescopic cylinder. The support roller and pressure roller of this application use raceway rolling rings of different specifications to adapt to bearing ring raceways of different sizes or depths. Furthermore, the auxiliary roller is provided with a trapezoidal auxiliary groove, which can maintain the axial and radial stability of the bearing rings and prevent displacement or vibration.

To provide a metal ring manufacturing method by which a metal ring of a large-diameter and long multi-layered structure can be obtained.SOLUTION: A metal ring manufacturing method comprises a process in which a second ring of aluminum or aluminum alloy is fitted into a first ring of aluminum or aluminum alloy, and a process in which a combined ring, in which the second ring is fitted into the first ring, is forged. In the forging process, a process, in which a part of the combined ring in a circumferential direction is compressed in a thickness direction by a compression apparatus, and a process, in which the combined ring is moved in the circumferential direction of the same relatively to the compression apparatus after the compressing process, are alternately repeated.SELECTED DRAWING: Figure 1

The invention relates to a roller (10, 11) for a rotary machining method, said roller (10, 11) having at least one embossing element (1) and at least one cutting element (3, 4, 5, 9). The invention further relates to an embossing and cutting tool (100), to a rotary machining method, to a half-plate produced according to said machining method, and to a bipolar plate comprising two half-plates.

The present application relates to the field of forging forming, in particular to a vertical rolling process with auxiliary end pressing, comprising the following steps: S1: vertical material supporting plates are arranged at both ends of the core roller of the vertical rolling mill, and an abutting component is arranged on the material supporting plate, the abutting component comprises at least one rolling device, and a rotatable roller is arranged on the rolling device; S2: the position of the material supporting plate is adjusted, so that the roller is located at the terminal position of the end face of the annular forging in this rolling; S3: the vertical rolling mill is started, and the main roller rolls the outer shape of the annular forging, and the core roller rolls the inner shape of the annular forging. The material supporting plate with the rolling device is arranged at both ends of the core roller of the vertical rolling mill, the roller on the rolling device abuts against the end face of the annular forging after being elongated, plays a role in axially limiting the annular forging, and the rolling friction between the annular forging and the roller reduces the frictional heat of the end face of the annular forging, plays a role in protecting the annular forging, and improves the rolling quality of the annular forging.

The application discloses a kind of servo ring piece rolling stable forming method and device, belong to ring piece rolling forming processing technical field.Method includes following steps: response ring piece rolling process obtains the change of ring piece size, the change of relative position of ring piece and taper roller, the change of relative position of rolling table and lower taper roller, the change of rolling condition and the deformation resistance of ring piece under the change of rolling temperature, the height of rolling table is adjusted, so that the table surface of rolling table and the upper generatrix of lower taper roller are in the same horizontal plane.Device includes rolling table, moving wedge, fixed wedge, displacement sensor, laser measuring instrument and driver, by above-mentioned method and the setting of structure, to obtain ring piece rolling condition, and ring piece automatically adjusts its height in response to rolling condition.Solve the height of rolling table cannot respond to the height of rolling table and adjust itself in response to the rolling condition of ring piece during rolling process, and the problem that ring piece forming is easily affected.

The utility model relates to the technical field of ring rolling mill auxiliary components, in particular to ring rolling mill guard plate assembling equipment which comprises a rack, a first supporting beam and a second supporting beam which are arranged in parallel are installed on the top of the rack, a first fixing plate and a second fixing plate are installed at the front ends of the first supporting beam and the second supporting beam respectively, and a third fixing plate and a fourth fixing plate which are adjustable in position are installed at the rear ends of the first supporting beam and the second supporting beam respectively. A mounting plate is connected to the side part of the first supporting beam in a fastening manner; a fifth fixing plate is mounted on the mounting plate in a fastening manner; the side portion of the second supporting beam is fixedly connected with a vertically-arranged third supporting beam, the third supporting beam is provided with a position-adjustable sixth fixing plate, and the inner sides of the first fixing plate, the second fixing plate, the third fixing plate, the fourth fixing plate, the fifth fixing plate and the sixth fixing plate are in sliding fit with the outer side plate face of the ring rolling mill protection plate. According to the utility model, the operation process is simplified, the assembly efficiency of the guard plate of the ring rolling mill can be greatly improved, the fatigue of operators is reduced, and the safety of production operation is guaranteed.

The invention relates to a preparation method of a wind power spline housing forge piece blank, and belongs to the technical field of wind power gear box component production. Comprising the following steps that (1) raw materials are sawn and blanked, and a blank is prepared; (2) heating the blank and preserving heat; (3) changing the heated blank for multiple times, and performing die forging blank manufacturing by adopting a die to obtain a forging blank; and (4) the forging stock is returned to the furnace, reheated and subjected to heat preservation, after the forging stock is discharged out of the furnace, a vertical ring rolling die is used for carrying out die ring rolling forming on the forging stock, and a spline housing forge piece for wind power is manufactured. (5) carrying out preheat treatment on the spline housing forge piece; (6) carrying out preliminary cutting processing on a forging blank through a lathe after carrying out preheat treatment on the spline housing forging; and (7) performing performance heat treatment on the spline housing forge piece. According to the method, the spline housing forge piece for the wind power is manufactured through die forging blank manufacturing and vertical ring rolling die ring rolling forming, the spline housing forge piece for the wind power can be subjected to profiling rolling forming, and consumption of overall raw materials is greatly reduced.

The present invention relates to the technical field of surface strengthening for sports equipment, and specifically to a method for multi-field coupling strengthening of an ice skate blade edge. The method includes the following steps: adjusting the laser head so that the laser beam covers the top surface and chamfer of the ice skate blade edge; adjusting the ultrasonic rolling device so that the rolling heads are positioned on both sides of the ice skate blade edge; determining the required laser energy and rolling force according to the material properties of the ice skate blade edge; simultaneously performing laser shock peening and dual-side opposing ultrasonic rolling on the side surfaces of the ice skate blade edge. By combining laser shock peening on the top surface of the blade edge with dual-side opposing ultrasonic rolling, deformation and delamination can be avoided. Meanwhile, the coupling of multiple energy fields reduces the dynamic yield strength of the material, making it easier for the material to undergo plastic deformation and achieve strengthening effects, thereby achieving deeper residual compressive stress, which is particularly beneficial for enhancing the strengthening effect in the chamfer part.

The invention discloses a forming method for rapidly manufacturing a large-size rectangular frame, and belongs to the technical field of forging. The problems that in the prior art, a large-size rectangular frame is large in forming material consumption and difficult to form are solved. The method comprises the following steps: determining a blank according to the theoretical weight of a rectangular frame final forge piece; carrying out cake upsetting on the heated blank to form a cake blank; carrying out saddle chambering operation on the heated punched cake blank to form a chambering cake blank; carrying out ring rolling operation on the heated chambering cake blank to form a ring-rolled cake blank; the square saddle penetrates through an inner hole of the scribed line cake blank, the upper die of the V-shaped groove presses downwards towards the square saddle, the scribed line cake blank is bent and flattened, and a rectangular frame final forge piece is formed. The forming method for rapidly manufacturing the large-size rectangular frame is used for manufacturing the large-size rectangular frame, and a composite manufacturing process that ring rolling and rapid chambering are matched with special tool die forging is adopted, the large-size rectangular frame is accurately and rapidly manufactured and formed, material consumption is greatly reduced, and the using performance of the whole piece is improved.

The invention discloses a forming method of a large multi-step special-shaped ring piece, which comprises the following steps of: firstly, adopting drawing software to assist in preparing an intermediate ring blank, putting the intermediate ring blank into a ring rolling machine for rolling, and during rolling, lifting a working table where the intermediate ring blank is positioned by 5mm-10mm, so that a main roller is in contact with the lower end of the intermediate ring blank firstly, and then rolling the intermediate ring blank; it is guaranteed that a mold cavity is filled with metal materials from bottom to top, forming of all steps is completed step by step, and then the rolled large multi-step special-shaped ring piece is subjected to bulging. By means of the method, the large multi-step special-shaped ring piece can be obtained, the rib deviation or rib crossing phenomenon can be effectively avoided when the large multi-step special-shaped ring piece is formed, and therefore the performance of the forge piece is improved. The method is suitable for aero-engine casing forgings.

A ring-rolling mill (1) includes a machine table (2) for accommodating the rolled material (3) and an axial stand (4) that supports at least one axial roll, preferably two axial rolls (5, 6), for rolling the end faces (7, 8) of the rolled material (3). The ring-rolling mill and a method for operation thereof facilitate rapid product change without elaborate setting-up or without conversion of the rolling mill. For that purpose at least one pressure roll, preferably two pressure rolls (9, 10), for rolling the outer circumference (11) of the rolled material (3) is further arranged on the axial stand (4). The at least one pressure roll (9, 10) is arranged so as to be translationally displaceable relative to the axial stand (4).

The invention relates to the technical field of steel plate preparation, in particular to a preparation method of a checkered plate with the thickness of 1.2 mm. The grain height of the checkered plate ranges from 0.12 mm to 0.14 mm. A checkered plate base plate is rolled through a hot continuous rolling unit and flattened through a temper mill to obtain the checkered plate, the hot continuous rolling unit comprises a tail rack, a checkered roller in the tail rack conducts rolling treatment on the checkered plate base plate, and the checkered plate base plate is rolled through a checkered roller in the tail rack. The reduction rate of a checkered roller in the tail rack on the checkered plate base plate is 13%-15%, the pressing load of the checkered roller is larger than or equal to 900 t, and after rolling treatment of the tail rack, the grain height of the checkered plate base plate is larger than 0.20 mm. A large number of tests and practices show that the checkered plate prepared through the method is good in plate shape and pattern, the percent of pass of the checkered plate is 85% or above, and the percent of pass is remarkably increased.

This application relates to a bearing ring reaming device, comprising a base, rollers rotatably connected to the base, a roller drive for driving the rollers, a rotating disk rotatably connected to the base, a plurality of limiting posts circumferentially fixed to the rotating disk, and a forming drive for driving the rotating disk. The rotating disk is fitted over the rollers with a gap between them. The rotation axis of the rotating disk is separate from the rotation axis of the rollers. The axes of the limiting posts are equidistant from the axis of the rotating disk. The sidewall of the rollers abuts against the outer wall of the workpiece, and the sidewall of the limiting posts near the rollers abuts against the inner wall of the workpiece. Workpieces are sequentially fitted over the limiting posts, and then the rotating disk rotates, thereby forming the workpiece through the cooperation between the limiting posts and the rollers. The workpiece is then removed from the limiting posts. The continuous movement of the limiting posts allows for continuous processing of the workpiece, thus achieving continuous processing of the workpiece and improving processing efficiency.

The utility model relates to the technical field of ring rolling processing, and discloses an automatic feeding and discharging structure for a ring rolling mill, which is characterized in that a control panel is fixedly mounted on the side surface of a working frame, a ring rolling table board is fixedly mounted on the bottom surface of the working frame, a base is fixedly mounted on the ring rolling table board, a feeding roller is fixedly mounted on the front surface of the working frame, and the feeding roller is fixedly mounted on the bottom surface of the working frame. A discharging roller is fixedly installed on the right side of the working frame, a first hydraulic rod is fixedly installed on the left side of the working frame, and a movable rolling head is fixedly installed at the telescopic end of the first hydraulic rod. According to the automatic feeding and discharging structure for the ring rolling machine, after the machine is started, the feeding roller starts to rotate, a rolling ring is conveyed to the rolling ring table top, after the rolling ring reaches the rolling ring table top, the first limiting rotating roller rotates to push the rolling ring to the position below the lifting limiting rod, and then the lifting limiting rod descends and is inserted into the middle of the rolling ring; and the first limiting rotating roller and the second limiting rotating roller can be controlled to move to the two sides of the grinding ring to prevent accidents caused by displacement of the grinding ring in the machining process.

A system and a method for manufacturing a battery cell packaging material are presented, the system comprising: a press roller that presses and rolls a plate-like material and in which recesses extending along a circumference are formed, in which protrusions are formed on the plate-like material by the recesses while rolling the plate-like material; and a press part that forms a recessed electrode mounting groove in the plate-shaped material by applying pressure to and pressing one point of the plate-shaped material, and that stretches the convex part of the plate-shaped material to form a side surface of the electrode mounting groove.