246 results about "Sheet metal stamping" patented technology

The invention provides an artificial intelligence-assisted stamping part formability rapid analysis and prediction method and system, and relates to the technical field of plate stamping forming, and the method comprises the steps: obtaining the three-dimensional data of a stamping part to extract geometric deformation characteristic parameters, constructing a strain path curve, and determining a deformation risk region; and establishing a corresponding relation between strain abrupt change characteristics and defect types to predict defect positions and types, and optimizing grid data based on a strain rate gradient and a material hardening index to carry out forming analysis. The method can improve the stamping part forming defect prediction precision and analysis efficiency, and reduce the mold test debugging cost and period.

The utility model provides a sheet metal stamping machining device capable of achieving automatic discharging, and belongs to the technical field of sheet metal stamping. Comprising a workbench; the punching machine is arranged on the workbench; the placing groove is formed in the workbench; the die is arranged on the workbench and located above the containing groove. According to the utility model, the ejection hole and the ejection part are arranged, the sheet metal is ejected from the edge of the sheet metal and pushed towards the center, the contact surface between the sheet metal and the mold can be gradually released, the local deformation of the sheet metal in the ejection process is reduced, and the force applied to the sheet metal in the ejection process is monitored in real time through the force sensor, so that the real-time adjustment is facilitated, and the production efficiency is improved. According to the ejection device, the force is uniformly distributed in the ejection process, and the impact force in the ejection process is reduced through the combined use of the first buffer pad, the second buffer pad, the buffer strip and the air bag, so that the stability of the ejection process is ensured, and the damage to the sheet metal part is reduced.

The invention discloses plate stamping section quality optimization equipment which comprises a tool table, a fixing structure, a positioning structure and a machining structure, and a cooling structure is arranged on one side of the tool table. The invention further discloses a plate stamping section quality optimization technology based on the plate stamping section quality optimization equipment. The plate stamping section quality optimization technology comprises the following steps that S1, a to-be-machined plate is placed; s2, a to-be-machined plate is fixed; s3, the to-be-machined plate is cut and machined; s4, cutting machining is repeated; s5, the cut and processed plate is subjected to cooling processing; s6, the plate subjected to cooling machining is subjected to stamping machining; s7, repeating the steps; the process solves the problems that in the prior art, low-cost and high-efficiency plate stamping end face quality optimization equipment is lacked, and in the traditional plate stamping process, due to the fact that cooperative regulation and control on intrinsic characteristics and fracture behaviors of materials are insufficient, part fracture surface burrs, microcracks, warping, stress concentration, cracking and other quality problems are caused.

The utility model relates to the technical field of power distribution cabinet processing, in particular to a power distribution cabinet sheet metal punch forming device which comprises a base, a supporting vertical plate and a top plate, sheet metal forming lower dies are installed at the two ends of the top of the base through supporting plates, and sheet metal forming cavities are formed in the sheet metal forming lower dies. The corners of the bottom of the metal plate forming cavity are each provided with a stator groove, the bottom of each stator groove communicates with a reserved hole, a top piece is arranged in each stator groove, and a top rod is welded to the bottom of each top piece and penetrates through the corresponding reserved hole. An electric cylinder B is connected to the position, located between the supporting plates, of the top of the base through a connecting disc, and a connecting plate is installed on an output shaft of the electric cylinder B through a screw; according to the power distribution cabinet metal plate punch forming equipment, automatic demolding and discharging are achieved, the material blocking phenomenon is avoided, force application and pushing are conducted at the four corners of the bottom of a power distribution cabinet metal plate at the same time, and deformation of the power distribution cabinet metal plate during demolding is avoided.

The invention relates to the technical field of metal plate stamping forming, and provides a new energy power battery shell deep drawing forming process parameter optimization method which comprises the steps that orthogonal test design is carried out based on a plurality of sets of parameters, and multiple times of shell deep drawing forming tests are carried out under different process parameters; the method comprises the following steps: analyzing a shell drawing forming test by adopting a response surface method, and establishing a maximum forming reduction rate mathematical model and a minimum forming reduction rate mathematical model based on test data; taking the established mathematical model as a target function, solving an optimal solution of the process parameters by adopting a particle swarm optimization algorithm, and adjusting the process parameters in real time by adopting a PID control algorithm; and combining the optimal solution of the process parameters with left and right double-shaft load monitoring to realize deviation verification analysis of multi-objective optimization numerical values of the process parameters. According to the method, dynamic adjustment of shell deep drawing forming process parameters is achieved, the stability and consistency of the machining process are ensured, and the quality of the formed shell is improved.

The utility model discloses a feeding device and a sheet metal part stamping production line. The feeding device comprises a feeding platform and a tray. The feeding platform is provided with a first positioning part and a second positioning part, the first positioning part is suitable for being in positioning fit with the tray in the first direction, the second positioning part is suitable for being in positioning fit with the tray in the second direction, and the first direction is orthogonal to the second direction. The first positioning part and the second positioning part are arranged on the feeding platform, in the process of positioning the tray to the feeding platform, the tray can be positioned relative to the feeding platform only by matching the tray with the first positioning part and the second positioning part in sequence, and complex position adjustment is not needed. The positioning process is greatly simplified, the positioning complexity is reduced, and therefore the time needed by the positioning tray to the feeding platform is shortened, and the production line efficiency is improved.

The invention relates to the technical field of sheet metal stamping, in particular to a ship sheet metal machining multi-station stamping forming device which comprises a supporting column, a top seat, a bottom die, a lifting seat and a hydraulic cylinder and further comprises a sealing assembly, a rubber wheel, a connecting assembly, a stamping die, a fixing block and a first pressing switch. The sealing assembly extends to the position below the lifting base, the stamping die is installed at the bottom of the lifting base, and the connecting assembly is installed on the lifting base. By means of the mode that the heated part is sealed in advance before the stamping part of the ship component is heated, and the stamping part is exposed before the stamping action is executed, the problems that in the prior art, when the stamping part of the ship component is preheated, heat loss is large, the multi-station stamping efficiency of ship component metal plates is low, and the stamping efficiency is low are solved. And the metal plate stamping die has the effects of being more energy-saving and environment-friendly, and meanwhile, the metal plate stamping efficiency of the ship component can be guaranteed.

The invention relates to the technical field of sheet metal stamping dies, in particular to a sheet metal stamping die convenient for die head replacement, which comprises a fixed base, a stamping mechanism is arranged on the fixed base, a hydraulic oil tank body is fixed on the stamping mechanism, and a fixing mechanism is further arranged on the fixed base. The stamping mechanism comprises two sliding rail strips fixed to the upper end of the fixed base, and stamping plates are slidably connected to the outer surfaces of the sliding rail strips. Self-adaptive adjustment of the stamping speed is achieved through the adjusting assembly, the current of an electromagnetic block can be controlled according to the thickness of a plate, the communication number of damping holes and sealing pipes is adjusted, then the flow speed of hydraulic oil is changed, impact loads are reduced, the service life of a die is prolonged, and meanwhile it is guaranteed that the plate cannot be broken in the stamping process; and the laser receiver and the laser transmitter are matched to detect the size of the workpiece, and the heating base is started to perform secondary stamping on the workpiece when the workpiece is unqualified, so that the yield of the device during machining is further improved.

The invention discloses a warm forming process of martensite-based advanced high-strength steel, and belongs to the technical field of plate stamping forming. The method comprises the following steps: (1) heating a to-be-used steel part at a preset heating speed to a certain preset stamping temperature below a steel austenitizing starting temperature Ac1, and keeping the temperature for a period of time, so that the temperature is uniform; (2) the plate heated to the preset stamping temperature is rapidly transferred into a stamping die to be subjected to stamping forming, and the plate is stamped into the shape needed by the component at the preset stamping speed; and (3) carrying out pressure-maintaining quenching on the steel part subjected to stamping forming in a mold. According to the method, the martensite-based advanced high-strength steel is heated to a certain temperature for stamping forming by setting the proper heating rate and heat preservation time, so that the martensite-based advanced high-strength steel has good stamping forming performance on the basis that the original high strength of the martensite-based advanced high-strength steel is not influenced basically, and the stamping forming difficulty is reduced; and rebound after forming can be effectively reduced, and the precision of a final product is improved.

This invention provides a positioning device for preventing lateral movement of a workpiece during mold opening. The device includes a lower mold assembly and a positioning assembly. The lower mold assembly includes a punch, a blank holder, and a lower mold base. The punch is fixedly mounted on the lower mold base. The blank holder is vertically movable and positioned on the lower mold base, surrounding the outer periphery of the punch. The bottom of the blank holder is connected to the lower mold base via a nitrogen spring. The working surface of the blank holder is inclined. During mold opening, the blank holder is lifted by the nitrogen spring, making its working surface higher than the punch. The positioning assembly is vertically extendable and retractable on the working surface of the blank holder. It can retract into the blank holder before sheet metal stamping and extend out of the blank holder during mold opening after sheet metal stamping, abutting the edge of the sheet metal to achieve horizontal positioning of the workpiece. This invention has the advantages of preventing the workpiece from sliding along the inclined surface of the blank holder during mold opening and ensuring workpiece positioning accuracy.

The invention discloses a roller washing machine. The roller washing machine comprises a box body; the inner cylinder is arranged in the box body; the tripod is arranged at the bottom of the inner cylinder and comprises a rotating shaft and at least three supporting arms; wherein the supporting arm comprises a bottom wall, side walls and an end wall, the side walls extend from the two opposite ends of the bottom wall in the direction away from the inner barrel, the end wall is connected with the bottom wall and the two side walls and located at the end, away from the rotating shaft, of the bottom wall, the two side walls, the end wall and the outer periphery of the rotating shaft are combined to form a groove, and a first positioning block is fixedly arranged in the groove; a first fixing hole and a first via hole are formed in the corresponding positions of the end, away from the rotating shaft, of the first positioning block and the end wall respectively, the inner diameter of the first via hole is larger than that of the first fixing hole, and the supporting arm penetrates through the first fixing hole and the first via hole through a first fixing piece to be fixedly connected with the barrel edge of the inner barrel. The defects caused by metal plate stamping forming of the tripod can be overcome, the split type structural design of the tripod is achieved, the quality of the tripod is improved, and the cost is reduced.

The invention relates to the technical field of intelligent protection, and discloses a metal plate stamping anti-collision system based on force feedback, which comprises a data acquisition module, a data processing module, a feature extraction module, a collision risk prediction module, a dynamic anti-collision control module and a real-time anti-collision intervention module, force signal data in the stamping process is obtained; performing noise cleaning on the force signal data to obtain a clean force signal in the stamping process; extracting a time domain feature and a frequency domain feature in the clean power signal to obtain a time domain feature vector and a frequency domain feature vector in the stamping process; performing collision risk prediction on the stamping process based on the time domain feature vector and the frequency domain feature vector to obtain a collision risk level of the stamping process; dynamically generating an anti-collision control instruction of the stamping equipment according to the collision risk grade; the stamping process is intervened in real time based on the anti-collision control instruction; according to the invention, the efficiency of production operation, quality control, mold maintenance and automation level can be improved.

The invention discloses a sheet metal part stamping device used for alloy sheet metal part machining, and relates to the technical field of sheet metal part machining, the sheet metal part stamping device comprises a supporting frame, a stamping table and a mounting table are installed on the upper side of the supporting frame respectively, the stamping table and the mounting table are installed at the two ends of the supporting frame respectively, and a stamping die is arranged on the upper side of the stamping table; a stamping die is arranged on the upper side of the stamping table, a jacking piece is arranged in the stamping die, a fixing frame is arranged on the upper side of the stamping table, a mounting plate is arranged in the fixing frame, a stamping block is arranged on the lower side of the mounting plate, the stamping block is arranged over the stamping die, an L-shaped connecting frame in sliding connection is arranged on the outer side of the mounting table, and a mounting frame is arranged at one end of the L-shaped connecting frame. And the sheet metal part is arranged in the mounting frame, a movable plate is mounted on the upper side of the L-shaped connecting frame, a supporting column is arranged on the upper side of the movable plate, a plurality of fixed suction cups are mounted on one side of the supporting column, and the output ends of the fixed suction cups are arranged on the inner wall of the sheet metal part.

The invention discloses an automobile metal plate stamping device convenient to demould, and relates to the technical field of metal plate stamping, the automobile metal plate stamping device convenient to demould comprises a stamping seat, a conveying mechanism is fixedly connected to the upper surface of the stamping seat, a shielding frame is fixedly connected to one side of the conveying mechanism, and a stamping mechanism is fixedly connected to the inner surface of the shielding frame; a sliding groove is formed in the upper surface of the stamping base, a pushing groove is formed in one side of the sliding groove, a stamping plate can be automatically conveyed through the conveying mechanism, the stamped and formed stamping plate can be pushed through movement of a pushing rod along the pushing groove, the stamped stamping plate is in a U-shaped state after being stamped, pushing of the pushing rod is facilitated, and the stamping plate can be conveniently conveyed through the conveying mechanism. And the automatic demolding effect is achieved. And secondly, dust on the upper surface of the stamping plate can be cleaned by the sponge through friction force of the stamping plate in the transportation process, follow-up lubricating oil smearing is facilitated, meanwhile, a certain cooling effect is achieved before stamping, the influence of stamping expansion is reduced, and the stamping size and precision are improved.

The present application provides a kind of multi-step composite stamping feature springback compensation calculation and forming method, it is related to sheet metal stamping forming technical field, include: to the pre-bending forming processing of the stamping material belt to be executed, generate multi-step pre-bending blank;To pre-bending blank executes step-by-step round operation, generates round transition piece;According to static springback numerical value, finishing sizing and corner shaping operation are executed to transition piece.The method also includes dynamic compensation control: obtain adjacent step size correlation parameters and continuous operation batch parameters;According to size correlation parameters, stress coupling coefficient is established;According to batch parameter, compensation attenuation factor is generated;Coefficient, factor and static springback numerical value are fused and calculated, and target springback compensation instruction is generated;According to target instruction, the compensation shaping action of subsequent batch is controlled.The present application can compensate the dynamic error accumulation generated in long-term processing, and improve the size consistency of multi-step finished product forming.

A plate stamping device for manufacturing a silencing box shell of a generator set relates to the technical field of metal plate stamping and comprises a supporting base, the supporting base is a horizontally-arranged square seat, and a bending stamping assembly, a blanking and blanking assembly and a clamping and transferring assembly are arranged on the supporting base. The problems that in the process that stamping equipment in the prior art is used for stamping the silencing box plate, the stamping function is single, the stamping mode is limited, the plate is inconvenient to transfer, consequently, the stamping part cannot be adjusted, and adjustment is inconvenient in the blanking process are solved.

The utility model relates to the technical field of sheet metal stamping, in particular to a sheet metal stamping combined die which comprises a lower die base and an elastic upper stamping die, guide columns are fixedly arranged at four corners of the lower die base, a hydraulic cylinder is arranged at the top ends of the guide columns, an upper die base is fixedly arranged at the end of the hydraulic cylinder, and the upper die base is arranged on the outer sides of the guide columns in a sliding mode. The pressing block is arranged on the upper die base and used for abutting against the sheet metal part. The lower stamping die is fixedly mounted on the lower die base and is matched with the elastic upper stamping die to form the sheet metal part; according to the sheet metal stamping combined die, through the design of the elastic upper stamping die, pre-pressing is achieved through the pressure maintaining spring in the stamping process, pressure on a sheet metal part continues to be kept after stamping is finished, springback and deformation are effectively prevented, and the sheet metal stamping combined die is simple in structure, convenient to use and high in practicability. And the precision and the stability of the stamping part are improved.

The utility model relates to the technical field of testing tools, in particular to a tool for dimension detection, which comprises at least two sliding rails, a plurality of sliding blocks and a plurality of positioning blocks, the sliding rails are rotatably connected and rotate in the same plane, and scales are arranged on the sliding rails in the length direction; the sliding block is arranged on the sliding rail in a sliding mode and can move in the length direction of the sliding rail; and the angle gauge is arranged below the sliding rails, and the angle gauge is used for measuring an included angle between any two sliding rails. A tool for dimension detection can be adapted to various special-shaped to-be-detected pieces, can obtain corresponding dimension data at a time, and solves the problems that in the prior art, dimension detection is carried out on sheet metal stamping pieces through vernier calipers, the process of detecting the special-shaped sheet metal stamping pieces is tedious, operation of the vernier calipers is complex, and the working efficiency is high. And the inspection efficiency is influenced.

The invention relates to a stamping tool comprising an upper part for attachment to an upper frame and a lower part (24) for attachment to a lower frame; the upper and lower parts being adapted for stamping a sheet metal part (12) in a stamping press; the upper part comprising a stamping body with a lower face and an upper face (30) for receiving the sheet metal part (12) to be stamped; a vertical passage (32) passing through the stamping body from the upper face to the lower face. The lower part comprises an optical sheet metal detection device (34) arranged in the vertical passage; the optical detection device comprises at least one straight optical fiber (40) in the vertical passage. The stamped sheet metal forms a structural element of a motor vehicle. Figure to be published with the abbreviation: Figure 2

The utility model provides an automatic rivet feeding mechanism and a progressive die device comprising the same, relates to the technical field of stamping, and solves the technical problems that procedures before and after sheet metal stamping and riveting are inconsistent in rhythm and low in production efficiency. The automatic rivet feeding mechanism comprises an arranging module, a guiding-out module, a material supplementing module and a material taking and feeding module. The arrangement module is used for adjusting the direction of the to-be-riveted material and providing a moving power source; the leading-out module is provided with a feeding position and a taking position; the feeding position is communicated with an outlet of the arrangement module and is used for receiving the to-be-riveted materials of which the directions are adjusted; the material supplementing module is arranged beside the guiding-out module and used for supplementing the to-be-riveted materials in the guiding-out module to the material taking position. And the material taking and feeding module can reciprocate between the material taking position and a preset riveting hole in the die cavity of the continuous die. According to the utility model, the in-mold riveting is realized, the material transfer process is avoided, the human resource investment is reduced, the production efficiency is obviously improved, the rivet feeding precision is high, no deviation exists, and the riveting requirements of various parts are met.

The present invention relates to the technical field of sheet metal stamping, and discloses an auxiliary component for stamping a metal back panel of a display, comprising a support platform, a hydraulic cylinder, and a servo motor. Both sides of the support platform are provided with a slide groove along its length direction, and an adsorption component is provided in the slide groove. An opening is provided in the middle of the support platform, and one end of the opening passes through the support platform, and an extension platform is slidably installed in the opening. A partition is provided at one end of the extension platform close to the inner side of the opening, and the partition is fixed between the inner walls of the opening. A first screw is rotatably installed on the partition, and the first screw is threadedly connected to the extension platform, and a first gear is fixed on the first screw. By fixing this device on a stamping machine, the metal back panel is fixed by the adsorption component, and the operation of the servo motor drives the metal back panel to move to the stamping station, and the stamping position can be adjusted, thereby avoiding manual movement of the back panel, reducing the labor intensity of the operator, and improving the stamping efficiency.

The invention discloses a wide-width multi-cavity integrated lightweight design method for a high-rigidity aluminum pedal of an electric bicycle. The pedal is formed by integrally extruding aluminum alloy, the integral wall is thin, the upper part is a panel, the lower part is a bottom plate, and the bottom plate is connected with a vertical rib to form a multi-cavity closed structure or a T-shaped rib is connected with a reinforcing cross beam; through holes are formed in four corners of the pedal plate, and connecting columns matched with the through holes in size penetrate through the through holes and are welded and fixed; the panels are all in an upwards-arched arc shape, a plurality of anti-skid lines are arranged on the upper surfaces of the panels, and arc-shaped covered edges are arranged on the two sides of the panels. The aluminum alloy extrusion integrated forming technology is adopted, traditional plastic extrusion or metal plate stamping is replaced, unification of light weight, high corrosion resistance and low-cost production is achieved, and the defects that a traditional plastic pedal is low in rigidity, prone to deformation, prone to aging, inflammable and not environmentally friendly, and a metal plate stamping die is high in cost are fundamentally overcome; and diversified requirements of the industry can be quickly responded, and preemptive preemption in the market environment of quick development of the electric bicycle is facilitated.

The utility model relates to the technical field of sheet metal processing, in particular to a sheet metal forming die capable of adjusting clamping force. The stamping die comprises a table top, a to-be-stamped workpiece is placed on the table top, then the to-be-flattened workpiece with the uneven surface is placed at the bottom of an inner cavity of the table top, an air cylinder is started to conduct jacking downwards, a mounting plate is driven to move downwards, the mounting plate drives a die body at the bottom to move downwards, and stamping is conducted on a sheet metal part; the guide rods limit the mounting plate in the horizontal direction so that the mounting plate can move in the vertical direction, the die body can vertically descend and ascend, the good stamping effect can be achieved, and the problems that due to inclination of the die, sheet metal parts are flattened unevenly or deform and the like are solved; and meanwhile, the guide rod and the flattening plate are driven to move downwards to flatten the workpiece, so that the defects of unevenness, scratches, deformation and the like on the surface of a metal plate in the machining and transporting process of the workpiece are prevented, and the product quality is prevented from being influenced.

This utility model relates to the field of sheet metal stamping technology, and in particular to a sheet metal stamping device with adjustable stamping angle, comprising: a frame on which a lower die is mounted; a stamping mechanism including a first motor, a lead screw, a sliding table, and a stamping assembly cooperating with the lower die, the stamping assembly including a support block and a stamping block rotatably disposed therewith; and an adjustment mechanism for adjusting the angle of the stamping head, including a first adjustment part and a second adjustment part, the first adjustment part being used to drive the support block to rotate. The advantages of this utility model are: through the synergistic action of the first and second adjustment parts, multi-angle precise adjustment of the stamping head can be achieved, meeting the processing requirements of different sheet metal parts, reducing the frequency of die replacement, and improving production efficiency; the use of a motor-driven worm gear and gear transmission mechanism realizes automatic adjustment of the stamping angle, avoiding errors and safety hazards caused by manual adjustment, and improving processing accuracy and ease of operation.

The invention discloses a pneumatic punching device and method for a stamping part, and relates to the technical field of stamping manufacturing of automobile body metal plates, the pneumatic punching device for the stamping part comprises a fixing frame, a plurality of clamping assemblies and a plurality of pneumatic punching assemblies, the multiple clamping assemblies are arranged on the fixing frame at intervals, and the multiple pneumatic punching assemblies are arranged on the fixing frame at intervals. The multiple pneumatic punching assemblies are arranged on the fixing frame side by side and located on one side of a vehicle door inner plate, and when the multiple clamping assemblies clamp and fix the vehicle door inner plate, the multiple pneumatic punching assemblies abut against one side of the vehicle door inner plate so as to conduct pneumatic punching on the vehicle door inner plate. Punching can be directly carried out according to newly-added holes through the multiple pneumatic punching assemblies, the number of punching dies or laser cutting procedures does not need to be increased, the production cost is reduced, and the production efficiency is improved.

The invention discloses an automobile die sheet metal part stamping die, and particularly relates to the technical field of sheet metal combined machining, the automobile die sheet metal part stamping die comprises a V-shaped bottom die, a controller, a corner combined roller and a corner slope linkage combined machining assembly; the corner slope linkage combined machining assembly comprises a V-shaped machining groove, a male die strip, an arc die strip and a slope combined roller. Through the corner slope linkage combined machining assembly and the sharp groove trepanning combined assembly, three combined machining operations of sharp end grooving, trepanning and right inclined plane arc-shaped protruding can be synchronously conducted on the bottom of a corner of an automobile sheet metal part raw material, and during dynamic corner slope linkage combined machining, the corner and the inclined plane are synchronously matched and adjusted; and the production progress and efficiency are greatly improved, and the adaptability of machining to complex requirements is greatly improved, so that the problems that diversified production tasks are difficult to fully meet, the production progress is slowed down due to adjustment difficulty, and the unnecessary production cost is increased are solved.

The utility model provides a battery pack which comprises a sheet metal stamping box body, a support structure and a liquid cooling plate, and the sheet metal stamping box body is provided with an accommodating cavity; the support structure is arranged on the cavity bottom face of the containing cavity. The liquid cooling plate support is arranged on the bracket structure and is detachably connected with the bracket structure; wherein the surface of one side, facing the liquid cooling plate, of the bracket structure is provided with a supporting convex hull, and the supporting convex hull is arranged away from the liquid cooling plate and protrudes out of the surface of one side, deviating from the bracket structure, of the liquid cooling plate; the battery pack further comprises an expansion supporting beam, and the expansion supporting beam is arranged on the supporting convex hull in a supporting mode so that a gap can be formed between the expansion supporting beam and the liquid cooling plate. According to the utility model, the problem that the liquid cooling design of the battery pack of the sheet metal stamping box body in the prior art cannot be realized is solved.

This utility model discloses a material protection device for sheet metal stamping production, belonging to the technical field of sheet metal stamping devices. It includes a base, a worktable fixedly connected to the surface of the base, a frame mounted above the worktable, and a stamping die installed between the worktable and the frame. An assembly groove is provided on the end face of the worktable, and a support seat is installed inside the assembly groove. A support frame is fixedly connected to the top of the support seat. A feeding gap is provided between cleaning pads A and B. When conveying strip material to the stamping die, the holding limiting plate is lifted longitudinally. At this time, the platform and the support frame are locked in place, preventing loosening or detachment. Then, the strip material is passed through the feeding gap between cleaning pads A and B. During the material pulling process, the strip material, supported and limited by the platform and the limiting plate, will not directly contact the worktable, thereby reducing wear and improving product quality.

The utility model relates to the technical field of plate stamping, in particular to a circular stamping plate rotating device which comprises a lower fixing plate, an upper fixing plate located at the top end of a die and a circular plate used for stamping, a lower die used for blanking is arranged at the top end of the lower fixing plate, and a rotatable pressure-bearing bearing is arranged on the outer side of the lower die. The top end of the pressure-bearing bearing is detachably connected with a rotatable positioning ring, and a check block attached to the outer side wall of the lower die is arranged at the bottom end of the inner side wall of the positioning ring. The upper die and the lower die can adopt the form of progressive dies, a plurality of punching modules are arranged, a round plate is driven to rotate through a positioning ring, when a complex annular punched part is needed, a complex punched pattern can be obtained through the simple rotation of the upper die and the lower die, the complexity of the die directly influences the production cost, and the production efficiency is improved. According to the invention, fewer molds need less storage space, so that the production cost is reduced, and the maintenance cost of the molds can be greatly reduced by reducing the complexity of the molds.

The utility model relates to the technical field of plate stamping, and discloses a metal plate stamping die which comprises an upper die base, a combined stamping die is arranged on the upper die base, the combined stamping die comprises a punch base arranged on the upper die base, an adjustable male die is arranged on the punch base, the adjustable male die is composed of a plurality of mutually independent movable cutting dies, and the movable cutting dies are arranged on the upper die base. The movable cutting die can slide in the punching direction, a plurality of clamping grooves are formed in the side face of the punch base, positioning assemblies are arranged in the clamping grooves and comprise clamping plates arranged in the clamping grooves, positioning columns are arranged on the sides, close to the movable cutting die, of the clamping plates, the tail ends of the positioning columns penetrate through the punch base in a sliding mode, and the movable cutting die is arranged on the movable cutting die. The movable cutting die is clamped with the movable cutting die; through cooperative use of the combined stamping die, the positioning assembly and the lower female die, the position of the movable cutting die can be adjusted according to needs, so that the movable cutting die is flexibly moved or fixed during stamping, more accurate operation is achieved, and the beneficial effects of being convenient to operate and high in applicability are achieved.