1568results about "Stripping-off devices" patented technology

The invention relates to the field of dies, in particular to a front oxygen sensor support stamping die structure which comprises a fixed die and a movable die, and a punching mechanism, a bending mechanism, a rim charge cutting mechanism and a discharging mechanism are sequentially arranged between the fixed die and the movable die in the conveying direction of a material belt. The punching mechanism is used for punching various holes in different shapes and positions in a material belt, the rim charge cutting mechanism is used for accurately cutting off rim charges, the bending mechanism is used for gradually bending the material belt of a plane structure into the shape of a product, and the discharging mechanism is used for conveying the machined product out of a die. The wear rate of the contact surface of the mold is reduced.

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

The invention discloses a feeding and discharging device for car window guide rail robot punching, and belongs to the technical field of automobile part machining. The feeding slide way is obliquely arranged, and workpieces automatically slide to a to-be-grabbed area on the lower side along the feeding slide way by means of gravity; the blocking mechanism is located on the feeding sliding way, when the workpieces exist in the area waiting for grabbing, the subsequent workpieces are blocked, and the next workpiece is released after the workpieces are moved out; the jacking mechanisms are located on the two sides of the to-be-grabbed area, and it is guaranteed that workpieces are accurately positioned; the detection module is in signal linkage with the robot, detects a workpiece in the area waiting for grabbing and triggers a grabbing signal; and the discharging mechanism comprises a self-separating assembly and a material box, and the self-separating assembly receives the punched workpieces and guides the workpieces to the material box. The whole process is highly automatic, the workpieces enter a grabbing waiting area one by one, the workpieces are accurately positioned by combining the left jacking air cylinder and the right jacking air cylinder, it is ensured that the workpieces are located at the accurate positions before grabbing every time, and the problems that traditional feeding and discharging equipment is inaccurate in positioning and low in efficiency are solved.

A four-edge double-bending die mechanism comprises an upper die (10) and a lower die (20), and the upper die (10) comprises an upper die base (11), a beating plate (12), an upper die plate (13) and a sliding block set (14; the lower die (20) comprises a lower die floating plate (21) and a lower die base (22), lower die bending blocks (23) are arranged on the peripheral sides of the lower die floating plate (21) and matched with the sliding block set (14) to form first-time bending, each lower die bending block (23) is provided with a side pushing bending mechanism (24) in a sliding mode, and the side pushing bending mechanisms (24) are arranged on the lower die floating plate (21) and matched with the sliding block set (14) to form second-time bending. And the lateral pushing bending mechanism (24) is driven by the corresponding upper die slotting tool (111) to form secondary bending with the sliding block group (14). The sliding block set is matched with the lower die bending block and the four side pushing bending mechanisms to complete product double-bending forming, the number of sets of dies is reduced, the number of operators is reduced, the cost is reduced, and the machining efficiency is also improved.

The invention discloses an automatic taking stamping die device with a waste separation function, and relates to the technical field of stamping machines, the automatic taking stamping die device comprises a bottom plate, the top surface of the bottom plate is provided with a stamping base unit capable of realizing classified and divided conveying of waste and a target workpiece after a stamping process is completed; the top surface of the stamping base unit is provided with a stamping execution unit with a function of quickly replacing a die as required; the stamping base unit comprises a stamping base frame fixedly mounted on the top surface of the bottom plate; when the stamping driving rod descends to the preset height, the punch makes contact with a stamping blank, workpiece shaping in the first stage and workpiece cutting and separating operation in the second stage are synchronously completed, after workpiece machining is completed, the punch mounting base continues to conduct downward pressing, the material taking pressing block presses one end of the workpiece, and the workpiece is cut and separated. The other end of the workpiece is promoted to tilt and fall into the material taking movable groove, clamping stagnation of the workpiece and the punch is prevented, meanwhile, it is ensured that the workpiece is attached to the surface of the guiding protective net, and smooth proceeding of the follow-up automatic workpiece taking procedure is ensured.

The invention relates to the technical field of top cover manufacturing, in particular to a multi-point anti-deformation stripping structure applied to a top cover stamping process, the multi-point anti-deformation stripping structure comprises a stripping frame of a concave structure, a double-layer limiting mechanism is arranged in the stripping frame, and a sub-frame assembly is arranged at the position, located on one side of the double-layer limiting mechanism, in the stripping frame; according to the invention, a composite stripping mode with a synergistic effect of multidirectional mechanical clamping, dynamic separation of the upper and lower molds and multi-point dynamic hammering is adopted, so that mold displacement in a demolding process is inhibited, demolding stability is ensured, demolding resistance and adsorption force can be eliminated, and residual stress in the upper and lower molds can be uniformly dispersed; the deformation risk after the top cover is formed is obviously reduced, and the top cover stripping efficiency is effectively improved.

The invention discloses a die structure and method for forming a sliding block, and relates to the field of hardware stamping dies. The die structure comprises an upper die base, and die opening and closing movement is carried out relative to a lower die base; the upper backing plate is fixed with the upper die holder; the sliding block installation assembly is installed on the upper base plate in a sliding mode, and a sliding block is installed on the sliding block installation assembly in an embedded mode; one end of the material ejecting mechanism is fixed on the upper die base, and the other end of the material ejecting mechanism penetrates through the upper base plate and then abuts against the top of the sliding block, so that the sliding block slides relative to the sliding block mounting assembly; a positioning plate is arranged on the lower base plate and used for positioning and placing a previous working procedure piece, a lower die forming block is embedded in the center of the positioning plate, a lower die shaping block is embedded in the center of the lower die forming block, and when the upper die base and the lower die base are closed, the sliding block is in pressing fit with the upper die forming block, the lower die forming block and the positioning plate, and the previous working procedure piece is stamped to form the working procedure piece. The special shape and size requirements of the product can be better met, and the structural stability and reliability of the product are guaranteed.

The invention relates to the technical field of metal plate machining, and discloses metal plate non-cutting automatic machining equipment and a using method thereof.The metal plate non-cutting automatic machining equipment comprises a first feeding assembly, a base is fixedly connected to the outer wall of the right side of the first feeding assembly, a fixing frame is fixedly connected to the upper surface of the base, and a sensor is arranged in a connecting plate; and the outer wall of the other side of the fixing frame is fixedly connected with a PLC, the sensor is electrically connected with the PLC, the interior of the fixing frame is fixedly connected with a forming assembly, the interior of the base is provided with a fixing assembly, and the outer wall of the right side of the base is fixedly connected with a second feeding assembly. In the whole machining process, a series of links such as primary positioning, cutting-free forming machining, metal plate fixing and finished product transferring and collecting are sequentially completed from feeding of the metal plate, the automation degree of cutting-free machining of the metal plate is improved, manual intervention is reduced, the machining efficiency is improved, and manpower and time cost is saved for enterprises.

The invention relates to the technical field of aluminum product machining, and discloses an aluminum product automatic stamping device and a stamping technology.The aluminum product automatic stamping device comprises a workbench, the upper surface of the workbench is fixedly connected with a plurality of bottom plates in an annular array, and the upper surface of one of the bottom plates is fixedly connected with a storage rack used for storing aluminum plate raw materials; a positioning frame used for positioning the initial position of an aluminum plate raw material is fixedly connected to the outer wall of the top of the storage rack, and four lifting assemblies are sequentially arranged on the other four bottom plates. Punching, edge cutting, profiling and groove pressing can be integrated on the same workbench for sequential machining, automatic continuous high-speed production can be achieved, the workpiece machining efficiency is effectively improved, parallel work of multiple stations can be achieved, the production cycle of a whole product is greatly shortened, an aluminum plate can be pressed while being machined, and the production efficiency of the product is greatly improved. And the assembly quality, the product appearance and the overall yield are improved.

The utility model relates to the technical field of flanging devices, in particular to a pipe fitting bidirectional in-hole flanging device. An upper die assembly is arranged above a lower die assembly; the lower die assembly comprises a lower die base and a supporting column, the die core assembly comprises a supporting piece, a rotating pin, a connecting piece and a female die core, and the axis of the rotating pin is perpendicular to the plane where the front end face of the supporting piece is located. One end of the connecting piece is rotationally connected with the rotating pin, and the other end of the connecting piece is fixedly connected with the female die core; the female die core is located above the supporting column, and the upper end face of the supporting column abuts against the bottom end face of the female die core to support the female die core. The upper die assembly comprises an upper die base and a hole flanging assembly, the hole flanging assembly comprises a punch arranged in a protruding mode in the direction of the female die core, and the position of the punch corresponds to the position of the supporting column. According to the pipe fitting two-way hole inner flanging device, suspended operation of the female die core can be avoided, the supporting stability of the female die core is improved, the service life is prolonged, meanwhile, a pipe fitting enters and exits the female die core conveniently and smoothly, and the problem that the female die core is prone to damage due to the small thickness and low supporting strength is solved.

The invention belongs to the technical field of pot body machining, and discloses pot body machining equipment which comprises a punching machine, a first motor is installed at the front end of the punching machine, a lifting feeding frame and a base are arranged on the two sides of the first motor correspondingly, the output end of the first motor is fixedly connected with a rotating frame, and a plurality of feeding mechanisms are arranged on the rotating frame; a clamping plate is rotationally connected to the base, and a fixing column is fixedly connected to the base. Round steel plates can be placed on the lifting feeding frame in batches, the feeding mechanism is used for sequentially taking the round steel plates, the round steel plates are placed on a lower die of the punching machine under operation of the first motor, then the punching machine is used for punching the round steel plates into cookware, and after the cookware is punched and formed, the feeding mechanism is used for taking down the cookware. And meanwhile, the feeding mechanism on the right side synchronously sucks the circular steel plate, and then the rotating frame is driven by the first motor to rotate by 120 degrees, so that the punched cookware is conveniently discharged.

The invention discloses an automobile part cold stamping die and a stamping method thereof, and relates to the technical field of stamping dies. An automobile part cold stamping die comprises an upper die plate and a lower die plate which are installed on an upper installation plate and a lower installation plate respectively, a sliding block is arranged in the upper die plate in a sliding mode, a male die is installed on the bottom face of the sliding block, and a female die groove corresponding to the male die is formed in the lower die plate. The upper mounting plate and the lower mounting plate are respectively provided with a guide sleeve and a guide column; a punching needle used for punching is installed on the upper die plate. By means of the device, middle concave forming, four-corner punching, burr control and natural chamfering can be synchronously achieved, and secondary procedures of deburring and manual chamfering after traditional punching are omitted by means of the collaborative design of pre-pressing of an inner concave ring groove area through the conical extrusion die and precise punching of the punching needle; and T-H-alpha-R parameter correlation logic is combined, so that the punching process requirement can be met through one-time punching.

The invention relates to the technical field of automobile door panel stamping, and discloses an automobile door panel stamping device which comprises a plurality of stand columns and further comprises a plurality of reinforcing rods, every three reinforcing rods form a group and are fixedly connected between the front stand column and the rear stand column, and a transverse rod is fixedly connected between the left reinforcing rod and the right reinforcing rod to form a stamping frame. The cabinet door is installed between the two front stand columns; the protective cover is mounted above the plurality of upright posts and is used for top protection; the stamping assembly is arranged among the multiple stand columns and used for stamping the steel plate raw materials; and the deviation rectifying mechanism is arranged on the stamping assembly. According to the device, the deviation rectifying mechanism is arranged, the deviation rectifying rod jacked up by the first spring is used for primary limiting, and the precise matching of the push block and the fault-tolerant hole when the upper die is pressed down is combined, so that the secondary active deviation rectifying and precise positioning of a plate are realized; according to the double-positioning mechanism, the problems of inaccurate product punching position, unqualified quality and the like caused by manual feeding deviation are effectively avoided, and the consistency and the yield of products are remarkably improved.

The utility model discloses a license plate stamping die which comprises an upper die and a lower die, and a first guide mechanism is arranged between the upper die and the lower die. The lower end of the upper die is slidably connected with a plurality of first guide columns, and the lower ends of the first guide columns are fixedly connected with a stamping plate. A plurality of punching columns are arranged at the lower end of the upper die; a plurality of punching grooves are formed in the punching plate in a penetrating mode and correspond to the punching columns. A bottom block is arranged on the lower die, a plurality of discharging grooves are formed in the bottom block and the lower die in a penetrating mode, and the discharging grooves correspond to the punching grooves; the front side and the rear side of the lower end of the upper die are fixedly connected with cutting blocks correspondingly, and the cutting blocks are located at the two ends of the bottom block in the vertical direction and do not coincide. A connecting mechanism located at the feeding end of the bottom block is arranged on the lower die, and a second guide mechanism is arranged on the outer side of the connecting mechanism. According to the utility model, raw materials can be subjected to continuous punch forming, and manual material taking and placing operations are reduced, so that dangers are reduced.

The invention relates to the technical field of sewing machine part machining, and discloses fixed cutter automatic shaping equipment which comprises a platform with a plurality of supporting legs, an operation cover is fixedly connected to the upper surface of the platform, a control cabinet is fixedly connected to the bottom face of the platform, and a hydraulic rod is fixedly connected to the top face of the inner wall of the operation cover. The output end of the hydraulic rod is fixedly connected with a detachable plate, the detachable plate is fixedly connected with a shaping pressing plate through a plurality of first bolts, and the upper surface of the platform is fixedly connected with a bottom plate. According to the automatic shaping equipment for the fixed cutter, an automatic feeding mechanism, a hydraulic rod, a shaping pressing plate, a conveying belt, a flatness sensor, a discharging opening and the like are integrated, the closed-loop automatic process of feeding, positioning, shaping, detecting and sorting is formed, and workers only need to place workpieces to be machined on a template block of the conveying assembly; subsequent procedures of chain plate conveying, electromagnet taking and placing, hydraulic shaping, conveying belt sorting and the like are automatically completed, the middle process does not need to be manually intervened, and the workpiece handling capacity in unit time is remarkably improved.

The utility model discloses a rear axle punching waste treatment device, and relates to the technical field of rear axle punching waste treatment, the rear axle punching waste treatment device comprises a workbench, a punching machine and a collecting box with a cavity, the workbench is arranged on the collecting box, the punching machine is arranged on the workbench, a waste discharge port is arranged on the workbench corresponding to the punching position of the punching machine, and the waste discharge port is arranged on the collecting box. A fence is arranged on the periphery of the working area of the punching machine, a conveying belt horizontally penetrates through the center height of the collecting box and is supported on the ground through a mounting plate, one end of the conveying belt penetrates through the cavity to the outside of the collecting box, and the other end of the conveying belt extends to the edge of the fence. One side of the conveying belt penetrates through the collecting box to receive falling waste, the other side of the conveying belt is arranged on the edge of the fence, the conveyed waste is collected through the collecting groove in the bottom of the fence, workers can take out the collecting groove at any time to transfer the waste under the condition that the punching machine is not shut down, the working continuity of the punching machine is guaranteed, and the working efficiency is improved.

The invention belongs to the technical field of metal barrel necking spinning forming equipment, and particularly relates to a self-expansion self-centering inner supporting device and method for necking spinning of a waist drum-shaped part. The device comprises a positioning mandrel, a plurality of sectioning expansion dies uniformly distributed in the circumferential direction, an expansion driving assembly and a torque transmission and floating connection assembly. Spinning forming can be completed through one-time clamping and positioning, the workpiece can be rapidly detached from the inner supporting tool after being formed, the workpiece does not need to turn around to be clamped again for secondary spinning, large form and location tolerance of the workpiece is prevented, the size precision of the workpiece is guaranteed, and the production efficiency of the waist-drum-shaped workpiece is improved. Expansion and loosening can be achieved only by rotating the outer adjusting cylinder, operation is easy and fast, and the clamping and discharging efficiency is remarkably improved. By replacing the split expanding dies with different shapes or adjusting the expanding stroke, the spinning requirements of cylindrical parts with different inner diameters and different shapes can be met, and the universality is good.

The invention discloses an automobile thermal forming stamping die anti-sticking coating protection assembly, and relates to the technical field of automobile part production, the automobile thermal forming stamping die anti-sticking coating protection assembly comprises a die body, the die body is provided with an auxiliary mechanism used for protecting an anti-sticking coating, and the auxiliary mechanism comprises two electric push rods, two cylindrical holes, a storage tank and two sliding grooves. A first electric valve is installed at the output end of the storage tank, a double-shaft motor is arranged on the periphery of the storage tank, and a first pump head and a second pump head are installed at the two output ends of the double-shaft motor through a main electromagnetic clutch and an auxiliary electromagnetic clutch respectively. When the mold release agent is used, scratch and abrasion of impurities to the anti-mold-sticking coating are reduced through impurity cleaning, a film formed by spraying the mold release agent on the surface of the anti-mold-sticking coating not only can play a role in mold release and lubrication, but also can play a role in buffering the anti-mold-sticking coating, so that the service life of the anti-mold-sticking coating is prolonged, and frequent shutdown is avoided.

The invention discloses a pressing rivet die and method for CNC machining of a water cooling plate, the pressing rivet die comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper clamping plate and a stop plate which are arranged at intervals, and a stripper plate is arranged on the lower end face of the stop plate; a nitrogen spring is arranged between the upper clamping plate and the stop plate, and one end of the nitrogen spring abuts against the stop plate. The nitrogen spring comprises a cylinder body, a piston rod and an air pressure adjusting channel communicated with the cylinder body. A first pressure sensor is arranged on the upper clamping plate, and a displacement sensor used for monitoring rivet press-in displacement is arranged on the stop plate or the stripper plate. In the running process, the upper die assembly is driven to move downwards, the nitrogen spring arranged between the upper clamping plate and the stopping plate is driven to be pressed step by step to apply uniform elastic pressure to the rivet, flexible rivet pressing is achieved, the first pressure sensor and the displacement sensor feed back the pressing-in displacement amount of the rivet in real time, feedback correction of the riveting process is achieved, and the riveting precision is improved. And offset or damage caused by hard contact is avoided.

The invention relates to the technical field of automobile part stamping, in particular to integrated stamping equipment for automobile part machining. A lower die is arranged on the surface of the protective box; an air cylinder is arranged above the lower die; an upper die is arranged on a piston rod at the end part of the air cylinder; a moving assembly is arranged at the bottom of the lower die; when an ejector rod moves upwards in the vertical direction to support a plate, when the ejector rod supports the plate, the ejector rod moves downwards in the vertical direction and resets, at the moment, a first rack drives a second rack to move in the opposite direction through a rotating gear, and the second rack drives an impact ball to impact the bottom of a lower die in the moving process; and the waste clamped at the through hole of the lower die falls off.

The invention discloses a fixing mechanism for logistics container plate stamping machining, and relates to the technical field of plate stamping machining, the fixing mechanism comprises a workbench, a lower die is fixedly installed on one side of the top of the workbench, the fixing mechanism further comprises a fixing assembly arranged on the other side of the top of the workbench, and the fixing assembly comprises a fixing block and a spraying assembly; the lower mold is arranged on the top of the workbench and located on one side of the lower mold, the fixing blocks are symmetrically installed at the bottom of the workbench, and a threaded rod is rotationally connected between the two fixing blocks; through the arrangement of the conveying structure, in the stamping work of the plate, only the conveying structure needs to be controlled to convey the plate, the plate machining continuity is improved, feeding during plate stamping is facilitated, the plate can be quickly demolded from the mold after subsequent plate stamping is completed, the plate does not need to be repeatedly fixed and loosened through the fixing structure, and the machining efficiency is improved. And compared with a plate punching fixing structure in the prior art, the working efficiency of plate punching can be effectively improved.

The invention discloses a continuous drawing die, and relates to the technical field of drawing machines, a movable plate is provided with an air exhaust assembly, the air exhaust assembly comprises an air exhaust groove formed in the movable plate, the outer side wall of the movable plate is fixedly connected with a connecting pipe, the connecting pipe is connected with an air exhaust pump, and an upper die is provided with a through hole; the air exhaust groove, the through hole and the connecting pipe are communicated; the movable plate is provided with a detaching assembly, the detaching assembly comprises a detaching plate and a driving assembly, the detaching plate is located below the upper mold when the mold is not closed, and the driving assembly is used for driving the detaching plate to move towards the outer side of the upper mold when the mold is closed. An ejection device and an additional device are not needed for moving the workpiece out of the female die, so that the overall machining efficiency is improved, the structure is compact, and the occupied area is not additionally increased.

The invention belongs to the technical field of punching machining equipment, and particularly relates to a machining device for a protective plate for an aero-engine, which comprises a punching lower die, a protective plate die cavity is formed in the punching lower die, a punching through hole is formed in the cavity wall of the protective plate die cavity, and a U-shaped bottom plate is fixedly connected to the lower surface of the punching lower die. The upper surface of the punching lower die is movably connected with a punching outer die. The device has the functions of primary punching and fine polishing and chambering on the aero-engine protection plate, rough hole walls and tiny crack defects generated by punching machining of the protection plate are removed through subsequent polishing, the inner wall of the punched hole of the protection plate is smooth and free of the stress concentration condition, meanwhile, the interior of the device further has the cleaning function, and the machining efficiency is improved. And scraps are prevented from being left and scratching the surface of the aero-engine protection plate processed subsequently, so that the processing quality and the qualification rate of the aero-engine protection plate processed by the device are improved, and the subsequent use reliability of the protection plate is improved.

The application discloses a kind of digital display cabinet aluminum alloy inner container punch forming device, including base;The application is cooperatively arranged by material taking mechanism and adjusting mechanism, which realizes the advantages of convenient access and feeding.Adjustable height is used when material is taken, so as to adapt to the height of the inner container, and to avoid falling damage caused by separating from the mold from a high place.Movable position and direction can be adjusted after material is taken, and the required direction can be adjusted during displacement.The direction is adjusted by rotating until the inner container is placed on the conveying equipment.The material taking mechanism can not only complete the taking operation of the formed inner container, but also adjust the spacing of the carrier according to the needs, and the lateral clamping method is used to ensure the lateral centering of the material during placement.The adjusting mechanism is mainly used for position adjustment, height adjustment and direction adjustment during material taking and after material taking.

The utility model discloses a punch forming device for an automobile pedal, which belongs to the technical field of automobile part processing, solves the problem that raw materials of the pedal cannot be quickly replaced when the existing punch forming device is used, and comprises a base, a support side plate and a stamping part, the support side plate is mounted on one side of the surface of the base, and the stamping part is mounted on the support side plate. According to the pedal raw material stamping device, due to the fact that the discharging mechanism and the die assembly are arranged, the positions of the two sets of dies can be rapidly switched, workers can conveniently conduct discharging and feeding treatment on the stamped pedal raw materials in turn, the waiting time of the stamped parts is shortened, the working efficiency is improved, and the working efficiency is improved. And in the switching process of the two sets of dies, pedal raw materials which are punched in the dies can be automatically unloaded, workers are assisted in rapid unloading, and the overall working efficiency is improved.

The invention relates to the technical field of punching equipment, and discloses an aluminum pole piece punching device which comprises a rack, a movable seat driven by a lifting machine is installed at the upper end of an inner cavity of the rack, a punching mold located over a bearing table is installed at the bottom of the movable seat, and a bearing plate used for containing an aluminum substrate is installed at the upper end of the bearing table; at least one pair of pressing assemblies is installed on the upper end face of the bearing plate and used for pressing at least one set of opposite sides of the aluminum substrate, and an inserting plate is installed at the bottom of the movable base. The inserting plate is inserted into the inserting hole along with descending of the movable base, the movable block is pushed to drive the transmission rack and the threaded rod to rotate, the pressing plate is made to press down and fix the aluminum substrate, manual intervention or complex electrical elements are not needed in the whole process, automatic pressing is achieved through mechanical linkage, the operation intensity is reduced, and potential safety hazards of manual operation are eliminated; meanwhile, shutdown maintenance caused by electrical faults is avoided, and the product quality and the production efficiency are improved.

The utility model discloses a punching machine automatic feeding device which comprises a feeding mechanism installed on the side face of a punching machine and a positioning mechanism installed on the front face of the punching machine, the feeding mechanism comprises a feeding sliding way and a material pushing air cylinder located in the feeding sliding way, and a push plate is vertically arranged on a piston rod of the material pushing air cylinder. Therefore, the workpieces are pushed and fed towards the stamping machining position along the material pushing slide way. The positioning mechanism is composed of a chain, a guide rod, a guide base, a spring, a positioning block and the like, and secondary positioning is conducted on the workpiece pushed to the stamping machining position. In the feeding pushing direction, a discharging sliding way is arranged on the other side of the stamping machining position, and the machined workpieces are pushed out along the discharging sliding way by means of the pushing force transmitted between the workpieces. According to the automatic feeding device, workpieces are automatically fed into the machining area of the punching equipment to be machined and automatically discharged, industrial accidents caused by the fact that hands of workers stretch into a punching machine are avoided, the production industrial injury rate is reduced, and the production efficiency is improved.

The invention discloses a shell machining mold and a machining process, and relates to the technical field of sheet metal machining, the mold comprises an upper mold and a lower mold, and the upper mold is provided with an upper mold forming plate or a shaping mold plate; a variable-radius structure is arranged on the upper die forming plate corresponding to the forming position of a circular bead R in the shell, and a uniform-radius structure is arranged on the shaping template corresponding to the forming position of the circular bead R in the shell; the process comprises the following steps: step 1, stretching; step 2, shaping; step 3, trimming; step 4, flanging; and fifthly, side punching and riveting are conducted. The variable-radius structure is arranged at the fillet R forming position of the upper die forming plate, variable-radius stretching is carried out on a material plate, after variable-radius stretching is finished, a shaping template is replaced for shaping, the fillet R of the shell is shaped into the design size, and the phenomenon that stretching cracks are generated when the size of the fillet R at the bottom of the shell is small and the overall stretching distance is large is avoided.

The invention provides a multi-station automatic punching device for an automobile hub, and belongs to the technical field of hub machining, the multi-station automatic punching device comprises a machine table and a hub, and further comprises a transportation positioning assembly and an air blowing assembly; the guide rail is driven by the rotary air cylinder to conduct 180-degree reversing, the feeding station, the machining station and the discharging station are ingeniously integrated, and seamless connection and automatic circulation of the whole process from feeding, positioning, punching to discharging of a hub are achieved; a traditional single-direction positioning mode is broken through, a two-way cooperative positioning mechanism combining inner side magnetic force supporting and outer side wrapping type clamping is innovatively adopted, the inner side is provided with outward supporting force through a magnetic supporting sleeve controlled by an electromagnetic ring, and the outer side forms wrapping type constraint through a positioning piece and an incomplete gear ring; the problems of deformation and deviation of the hub under high-pressure blanking are fundamentally solved; the corrugated sleeve is extruded through movement of the positioning piece, and directional high-pressure airflow can be generated to purge a punching area without an additional air source and electric power.

The invention discloses a bearing retainer weight device, and particularly relates to the technical field of retainer machining, the bearing retainer weight device comprises a base, a first support is fixedly mounted at the top end of the base, a working platform is fixedly mounted at the top end of the first support, and a weight mechanism is arranged in the middle of the working platform; the feeding mechanism is arranged on the side, close to the weight mechanism, of the top end of the working platform, the second support is fixedly installed on the side, close to the feeding mechanism, of the top end of the working platform, the feeding mechanism is fixedly installed at the top end of the second support, and the pushing mechanism is arranged at the bottom end of the feeding mechanism. The retainer on the bottom support sliding tables can be jacked up for automatic weight machining, after machining is completed, the weight bottom die is directly lowered, the retainer makes contact with the top ends of the two bottom support sliding tables again for supporting, automatic discharging after retainer weight is achieved, and compared with traditional clamping feeding and discharging, the overall efficiency of retainer weight is improved.