179results about How to "Improve stamping precision" patented technology

A multifunctional servo crank knuckle-lever press comprises a servo motor, a crankshaft, a connecting rod, a ram, a sliding block body and a control system, wherein the servo motor is connected with the crankshaft through a speed-reducing mechanism in a driving mode, a crank of the crankshaft is connected with a rotary bearing at the upper end of the connecting rod, the lower end of the connecting rod is hinged to the center of the ram through a bulb screw rod, and the ram is hinged to a symmetrical knuckle lever structure. The symmetrical knuckle lever structure is composed of a triangular connecting rod, an upper knuckle lever and a lower knuckle lever, wherein three angle ends end of the triangular connecting rod are respectively provided with a pin hole, are large semicircular column bodies, and are hinged to semicircular square bearing bushes arranged on an upper knuckle lever and a lower knuckle lever through pin shafts, and the upper knuckle lever and the lower knuckle lever are hinged to an upper support of a machine body and a lower support of the sliding block body respectively. According to the multifunctional servo crank knuckle-lever press, the servo control system controls the servo motor to drive the sliding block to make vertical reciprocating motion operations, different punching curves are achieved through preset control programs according to different processes, and multifunctional punching operations such as blanking, silent punching, tensioning and fine press forming and stamping are carried out.

The invention provides a table type precise punching machine which comprises a working table, a table body and a motor, wherein, clutch brake components are formed by the matching of a brake clutch pressure plate with brake blocks and a piston which is arranged in a cylinder of a body and provided with a spring; the brake clutch pressure plate is fixed on a fly wheel and the table body; a crank shaft and the body which is connected on the crank shaft are provided with an air inlet and an air inlet hole which are connected with a gas source; a connecting rod slide block device is formed by the following steps: the upper end of the connecting rod with a joint bearing is connected with an adjustment slide block by a pin, the lower end of the connecting rod with the bearing is connected with the crank shaft, and the slide block and the adjustment slide block are connected into a whole by a saw tooth with a nut and a screw rod, and the slide block and a guide rail are matched. The clutch and the brake which are originally installed in a dispersion way are integrated to be centrally installed and are compact in structure, small in volume, good in braking performance and safe and flexible in use; the lubrication of each rotational position is ensured by a rolling bear, thus sufficiently reducing the resistance and improving the working efficiency; the connecting rod slide block device greatly reduces the volume of the whole machine and is easy to be processed and installed, thus improving the installation precision and causing a die to be simple and convenient in adjustment and operation.

The invention relates to the field of automobile parts, in particular to a lower sealing structure for a door. A sealing strip is installed on an automobile door inner plate and comprises a straight-wall-shaped base part, a first lip edge and a second lip edge, wherein the first lip edge and the second lip edge are fixed to the portion below the base part and extend in a suspended mode. The first lip edge corresponds to a lateral surrounding outer plate on a sill in position, when an automobile door is closed, the first lip edge is attached to the lateral surrounding outer plate, the second lip edge is attached to an automobile door decorative plate, the tail end of the lower portion of the automobile door decorative plate extends to the lower portion of the second lip edge, and the base part is provided with a through hole used for being connected with the automobile door inner plate. The lateral surrounding outer plate on the sill is shielded through the first lip edge, so that silt is prevented from directly knocking the lateral surrounding outer plate and prevented from being accumulated on the sill. Through the structure, an installation hole does not need to be formed in the lateral surrounding outer plate on the sill, so that rainwater or dust is effectively prevented from entering an automobile. The second lip edge is attached to the automobile door decorative plate so that the silt can be effectively prevented from being accumulated. When the door is opened, the sealing strip on the lower portion of the door is shielded through the automobile door decorative plate, so that attractiveness of the whole automobile is not affected.

The invention discloses a press machine high in machining precision. A base is included. The upper end of the base is fixedly connected with an upper cover plate through two supporting plates. A hydraulic cylinder is fixedly connected to the upper end of the upper cover plate. The two supporting plates are symmetrically arranged on the two sides of the lower end of the hydraulic cylinder. The telescopic end of the hydraulic cylinder penetrates through the upper cover plate and is fixedly connected with a punching head. The lower end of the punching head is fixedly connected with a punching buffering device. The two sides of the punching head are symmetrically provided with guiding columns corresponding to the punching buffering device in position. The upper ends and the lower ends of the two guiding columns are fixed to the opposite side walls of the upper cover plate and the base correspondingly. The press machine is compact in structure, the punching buffering device is arranged at the lower end of the punching head and matched with a damping mechanism, damping buffering and protection functions are achieved for to-be-punched accessories and other mechanical structures on the press machine in the punching process, and meanwhile the punching precision is improved under the guiding action of the guiding columns.

The invention relates to a whole-stamping retainer structure for tapered roller bearings, which comprises a retainer annular main body formed by a cellular beam and an inner hole, a flange, window holes, a bottom, and arc-shaped bumps; a plurality of window holes are uniformly distributed on the retainer annular main body in a circumferential direction; the annular flange is disposed at the large end and extends outwards in a direction of the central axis of the inner hole away from the retainer annular main body; the arc-shaped bumps are disposed respectively at two ends of each window hole in the axial direction of the retainer annular main body. A trimming die device of the whole-stamping retainer for tapered roller bearings comprises a retainer, a push rod, a discharging ring, a female die, a male die, a lower discharging plate, a spring, a positioning plate, and residual materials; the lower discharging plate is disposed at the outer side of the male die; the upper part of the male die is sleeved with the positioning plate and the retainer; the discharging ring is connected with the push rod, and the inner side of the female die is sleeved with the discharging ring; the purposes of the invention are to innovate the retainer structure, to reduce the plate thickness, and to realize the manufacturing of the retainer by a whole-stamping method.

The invention provides a continuous punching die for a punch forming standard component. The continuous punching die for the punch forming standard component comprises a moving die and a fixed die, wherein the moving die comprises a moving template, an upper base plate and a fixed plate; the moving template, the upper base plate and the fixed plate are successively connected in sequence; the surface of the fixed plate is provided with a terrace die punch; the inside of the moving die is also provided with a positioning nail and a guide post; the guide post and the terrace die punch are both outwards extruded vertically; the fixed die comprises a fixed template, a lower base plate and a lower template, wherein the fixed template, the lower base plate and the lower template are successively connected in sequence; the surface of the lower template is correspondingly provided with a forming die; the inside of the lower template is also correspondingly provided with a positioning hole and a guide sleeve; the guide sleeve passes through the lower base plate to extend into the fixed template; and the moving die and the fixed die are oppositely installed. According to the die, a plurality of single-working-procedure dies are integrated into one composite die which supports multiple punching working procedures by a simpler structure, one-time punch forming of a standard component product is realized, the production technology is simplified, the manufacture speed is quickened, the product processing precision is improved, and the rejection rate is lowered, so that the enterprise production cost can be lowered, and the production efficiency and the resource use ratio are improved.

The present invention provides a process for producing three-dimensional wave steel plates and special equipment thereof. The producing flow of the process comprises: preparing raw materials, machining holes, reeling lugs, reeling arcs, rolling lugs, punching waves and stacking. The special equipment of the process is formed by sequentially connecting a punching press, a beading machine, a plate reeling machine, a lug rolling press, an overturning mechanism and a wave punching press through a producing and conveying chain, wherein a wave punching protecting mechanism is arranged on the wave punching press. The process adopts PLC programmable control technology on a production line, so as to improve the punching efficiency and precision of holes and waves on the three-dimensional wave steel plates. The visualized screen operation of the process realizes the integrated control of a system; at the same time, through establishing a fault mode, every node in the process of production is monitored, so that the reliability and the intellectualization level of the whole system are improved. At the time of improving production efficiency and finished product quality, manual operation procedures are reduced and labor strength is reduced.

The invention discloses a fast stamping die with a bending stamping head, which comprises an upper die and a lower die, wherein a space used for molding products is reserved between the upper die and the lower die, the upper die mainly consists of an upper die base, an upper splint, an upper backing plate and an upper template which are overlapped sequentially, the lower die consists of a lower template, a lower subplate and a lower die base which are overlapped sequentially, a half-cutting stamping head is vertically fixed on the upper splint, and a bending stamping head used for bending the products is vertically fixed on the upper splint. With the fast stamping die with bending stamping, when the upper die moves downwards, the bending stamping head and the half-cutting stamping head move downwards following the upper die, the product is cut by the half-cutting stamping head firstly, and then the cut product is bent by the bending stamping head so as to achieve the purpose of one-step molding and increase the work efficiency; and in addition, a spring is added between the upper die base and the template so as to obviously increase the stamping precision and reduce the production cost for enterprises.

The invention provides a stamping oil composition. The stamping oil composition is prepared from, by weight, 1-5 parts of macromolecular polymerization ester, 1-3 parts of dialkyl pentasulfide, 2-8 parts of vulcanized cottonseed oil, 0.5-2.2 parts of oleic acid, 0.2-1 part of di-n-butyl phosphite, 0.03-0.05 part of antioxidant, 1-2 parts of petroleum sulfonate, 0.01-0.4 part of anti-rust agent and 78-95 parts of mineral base oil. The prepared stamping oil composition has very good extreme pressure, lubricity, anti-rust property and oxidation resistance, stamping oil acts on a stamping device and can prolong the service life of the device, and the stamping precision of the device can be improved.

The invention relates to the field of mechanical equipment and particularly discloses a stamping device of a ventilation plate, wherein the stamping device of the ventilation plate is low in production cost and little in energy consumption. The stamping device of the ventilation plate comprises a punch press and a moving clamp, the moving clamp is arranged on the face right opposite to the punch press, the moving clamp structurally comprises a base, a pedestal is arranged on the base, a longitudinal slide rail is arranged on the pedestal, a connecting arm is arranged on the longitudinal slide rail, a nut is arranged at the bottom of the connecting arm, and the nut is arranged on a longitudinal screw rod in a sleeved mode. A pneumatic gripper is arranged on the portion, close to one end of the punch press, of the connecting arm. According to the stamping device of the ventilation plate, a row of concave dies are arranged on a stamping die, the ventilation plate is stamped many times, and thus the size of the die can be effectively reduced, the stamping pressure and energy consumption can be reduced. Through transverse motion of the pedestal and longitudinal motion of the connecting arm, the pneumatic gripper can move in the horizontal plane so that the ventilation plate can be moved and positioned. Moreover, motion of the pneumatic gripper is achieved through the screw rod and the nut, so that the pneumatic gripper performs positioning more accurately, and thus the stamping accuracy of the ventilation plate is improved.

A flattener comprises a cabinet, a supporting platform, a servo electric cylinder and a punching head, wherein the supporting platform is mounted above the cabinet, and the punching head is positioned above the servo electric cylinder. The cabinet is provided with a containing cavity positioned below the supporting platform, at least part of the servo electric cylinder is placed in the containing cavity, and the servo electric cylinder drives the punching head to move upwards and is used for flattening a workpiece positioned above the punching head. By the aid of the servo electric cylinder with high control accuracy, punching accuracy of the flattener is improved.

The invention relates to a multi-station progressive die for punching of an electric appliance contact support and a blanking process of the multi-station progressive die. The progressive die comprises an upper die, a lower die, a work assembly and a fixed-distance positioning assembly. The work assembly comprises a punching male die, a bending shaping male die, a ribbing wedge, a cutting male die and a female die plate, wherein the punching male die, the bending shaping male die, the ribbing wedge and the cutting male die are sequentially arranged on the upper die, and the female die plate is arranged on the lower die. The female die plate is sequentially provided with a punching female die, a bending and shaping female die, a ribbing sliding block and a cutting female die, all of which are matched with corresponding work assemblies on the upper die. The fixed-distance positioning assembly is composed of a double-side-edge mechanism and a guide pin mechanism. The blanking process includes punching, bending shaping and ribbing which are sequentially conducted. Compared with the prior art, the multi-station progressive die for punching of the electric appliance contact support is wide in application range, high in production efficiency, high in manufacturing precision and convenient to maintain.

The invention discloses a stamping device for production and machining of automobile spare parts. The stamping device comprises a supporting plate, a collecting box, a first electric push rod, a box cover, a sliding block, a supporting seat, a base plate, an elastic piece, a stepping motor, a lead screw, a gear ring, a lower die plate, a hydraulic rod, an upper die plate, a limiting rod, a drivingseat, a belt wheel, an installation frame, a rolling gear, a baffle, a guide plate, an installation groove, a push plate, a supporting rod, a second electric push rod, a main guide rod, an auxiliaryguide rod, a clamping plate, a driven gear, a driving gear, a rubber gear ring, a transmission roller and a U-shaped mounting plate. According to the stamping device for production and machining of automobile spare parts, the spare parts can be better clamped, so that the spare parts cannot deviate in the stamping process, the stamping efficiency is greatly improved, the stamping precision is alsoimproved, and the stamping effect is enhanced; and meanwhile, the stamped spare parts can be better collected and sorted, the operation by workers is avoided, the working intensity of the workers isgreatly reduced, and the practicability is also enhanced.