47results about How to "Good cross section quality" patented technology

A method of cutting a brittle-material plate is provided by which the brittle-material plate can be cut into a desired planar shape through automatic machine production without complicating the device. Also provided are a window glass for vehicles which is obtained by the cutting method and a device for cutting a brittle-material plate. The method of cutting a brittle-material plate comprises: a first step in which a scribe line (L2) is formed in a surface (G1) of a brittle-material plate (G); and a second step in which the position (A) where the surface (G1) of the brittle-material plate (G) is irradiated with laser light is relatively moved along the scribe line (L2) to cut the brittle-material plate (G) ahead of the irradiation position (A) with respect to the moving direction.

The invention discloses a bar stock pneumatic radial impact high-efficiency precise blanking method. In the method, the bar stock is arranged on a pneumatic radial impact precise blanking device and the main working parts of the blanking device comprise a blanking sleeve, an elastic pad sleeve, a bar stock fixing sleeve, an impact cylinder, a piston and a blanking die. The impact cylinder works sequentially under the control of a control system and drives the blanking die to load the bar stock along the radial direction continuously; cracks are extended from the surface of the bar stock alongthe radial direction to the center of the circle by a fatigue breaking device of the bar stock, thus achieving the blanking and gaining good quality of the profile.

The invention discloses glue sealing end face glue cutting equipment. The glue sealing end face glue cutting equipment comprises a control system, a motor, a machine frame, a workbench, a cutter assembly, a clamping mechanism and a transmission mechanism; the motor and the transmission mechanism are both installed on the machine frame; the workbench is installed on the machine frame and is locatedabove the transmission mechanism; a sliding groove is formed in the workbench; the sliding groove is covered with a sealing piece, and the workbench surface is free of a gap; the clamping mechanism is arranged on the workbench, and the lower end of the clamping mechanism penetrates through the workbench through the sliding groove to be connected with the transmission mechanism below the clampingmechanism; the sealing part on the sliding groove penetrates through the clamping mechanism; the cutter assembly is installed on the workbench and located on the two sides of the clamping mechanism; and the clamping mechanism is matched with the cutter assembly to work. The transmission mechanism is arranged below the workbench, and the sliding groove in the workbench is covered with the sealing strip, and then the sealing strip is tightly pressed against the workbench by combining the clamping mechanism, so that the overall matching enables the workbench of the glue sealing end face glue cutting equipment to be simple, the operation space is more sufficient, and the equipment is convenient to clean.

The invention provides a workpiece notch stamping device, comprising an upper die base, an upper die, a lower die base, a lower die and a workpiece positioning mechanism, wherein the upper die base is connected with a press; the upper die is arranged on the upper die base; the lower die base is arranged below the upper die base; the lower die is arranged on the lower die base and is matched with the upper die to form stamping space of stamped workpieces; and the workpiece positioning mechanism for positioning the workpieces is arranged on the lower die. The device has the characteristics of simple structure, convenient operation, operation time saving, low labor intensity, stable quality and the like, is suitable for mass production and improves the production efficiency.

The invention relates to a plane edge-pressing and semi-fine blanking device and a method. The device is provided with a plane pressure plate and a concave die, when a workpiece is punched, the plane pressure plate needs to enable edge-pressing force to press on the outer edge of a profile of the workpiece on a workpiece blank, and the edge-pressing force can generate great friction force betweenthe surface of the workpiece blank and the plane pressure plate and between the surface of the workpiece blank and the concave die, so as to prevent the material of the workpiece blank from flowing out of the profile of the workpiece. The device is matched with punching force, three-dimensional pressure stress is generated in the material of the workpiece blank in an extrusion zone, and plastic flow is generated, so as to enable the numerical values of the pressure stress in the three-dimensional directions to tend to be consistent, enable the material of the workpiece blank in the profile ofthe workpiece to be in the hydrostatic pressure state and have a maximal plastic deformation range, reduce a region for generating tensile stress in a shearing deformation zone and prevent the emergence of cracks on the surface of a cross section of the workpiece. By using the plane edge-pressing and semi-fine blanking device and the method, an ordinary punch can be used, the processing of a die is simple, a pressurization region on the workpiece blank can not cause damages, the processing cost is low, the quality of the workpiece is high, and the device and the method are convenient to popularize and apply in the punching industry.

The invention provides a closed extruding fine blanking die based on a floating female die structure. The die is provided with a floating auxiliary female die, can realize early extrusion closure and fine blanking required by a closed extruding fine blanking process, can meet the process requirement of keeping two subsequent forces constant in the process, a closing force is obtained from a fine blanking piston of equipment through a force transmission rod, and the closing force and an anti-jacking force are easy to adjust. The die can be used manufacturing parts with low plasticity and large thickness, ensures high section quality and dimensional accuracy, and is convenient to popularize and apply in the fine blanking process.

The invention discloses a radially-severing efficient and precise low-stress discharging method, and belongs to the technical field of intelligent manufacturing. Four sets of discharging units symmetrically distributed in the circumferential direction of bars sequentially apply loads to the bars at intervals. Each set of discharging unit comprises discharging clamps arranged at the ends of a firsthydraulic oil cylinder and a second hydraulic oil cylinder, and thrust hammerheads fixed to the ends of piston rods of a third hydraulic oil cylinder and a fourth hydraulic oil cylinder. The discharging clamps and the thrust hammerheads are oppositely arranged, when the bars are severed, after the thrust hammerheads jack the bars, the discharging clamps apply loads to the two ends of V-shaped grooves of the bars simultaneously, the discharging clamps and the thrust hammerheads in the four sets of discharging units cooperate to generate alternating force at the positions of the V-shaped grooves, under the acting force, cracks are produced at the positions of the V-shaped grooves, it is guaranteed that the cracks circumferentially propagate along the sections of the sharp ends of the V-shaped grooves gradually towards circle centers, and the beneficial effects that the efficiency is high, the fatigue crack propagation region area is large, and the fracture surface quality is high are achieved.

The invention relates to a pneumatically controlled double-stage shear precision separation device for cutting metal rods and tubes. It consists of a pneumatic forging and shearing mechanism for rods and tubes that is separated from the inner side of the rod and tube material clamping mechanism. The rod and tube material clamping mechanism includes a V-shaped support and a V-shaped cylinder that is located above the V-shaped support and driven by a pneumatic system. The block; rod and tube material pneumatic forging and shearing mechanism includes an impact cylinder base and an impact cylinder located above the impact cylinder base and driven by a pneumatic system, and a rod and tube material forging sleeve is installed at the lower end of the impact cylinder. When working, the pneumatic system controls the cylinder V-shaped pressing block and the V-shaped support to clamp the metal rod and tube material, and then the pneumatic system controls two impact cylinders to drive the rod and tube material forging sleeve to simultaneously carry out the metal rod and tube material at both ends. Forging and pressing, and finally complete the cutting work of the rod and tube material.

The invention discloses a fatigue break feeding machine for fixed workpiece fatigue load circumferential cyclic loading. A loading frequency regulating and controlling mechanism comprises a main shaftand a rotating chuck connected with the main shaft; a fatigue load loading mechanism comprises a first servo motor and a lead screw which are arranged on the rotating chuck, the first servo motor drives the lead screw to rotate, a nut is vertically installed on the lead screw, and a feeding die is movably installed on the nut; a workpiece clamping mechanism comprises a feeding opening and a discharging opening, the locations of the feeding opening and the discharging opening are separately provided with clamping assemblies, second servo motors of the clamping assemblies drive two-way lead screws to rotate, and each two-way lead screw is provided with two clamping pieces. A fatigue break principle is used, so that multiple fatigue crack sources are generated at the prefabricated stress gaps of rod and tube materials to enable the crack to quickly extend, and quick feeding of the rod and tube materials is achieved; and sections are kept smooth, end portions are free of deformation, wherein the fatigue load loading mechanism controls the displacement of the lead screws by the servo motors, and radial real-time adjustment of displacement amount is achieved.

The invention discloses an automatic breaking device for an optical glass plate material, and belongs to the technical field of optical glass production. The automatic breaking device mainly solves the problems that the labor intensity is high, the glass fracture surface quality is difficult to control and an existing breaking device is easy to damage glass and a clamping device in manpower breaking. The device comprises a transport mechanism, a detection mechanism, a longitudinal moving mechanism, a scribing mechanism, a heating mechanism, a cooling mechanism and a pressing and breaking mechanism, wherein the transport mechanism comprises a roller conveying platform and a belt conveyor; the detection mechanism comprises an encoder and a first cylinder; the longitudinal moving mechanism comprises longitudinal linear guide rails, a first ball screw and a first servo motor; the scribing mechanism comprises a second ball screw, a second servo motor, transverse linear guide rails and a diamond scribing knife; the heating mechanism comprises a heating rod and a second cylinder; the cooling mechanism comprises a sponge body and a third cylinder; and the pressing and breaking mechanism comprises a stamping cylinder and a pressing block. According to the automatic breaking device, automatic breaking of the optical glass plate material can be realized according to a set length, the fracture surface quality is good, and the breaking length is accurate.

A method of cutting a polarizing plate by using a laser, and a polarizing plate cut using the same. A beam shape of the laser is configured to have an elliptical shape and a major axis of the elliptical shape parallel to a cutting direction to provide excellent cross-sectional quality and improved productivity.

The invention relates to the technical field of metal stamping machining, in particular to a punching method for improving the sectional quality of a stamping part. The specific treatment steps include that before punching of the stamping part, the stamping position is determined; a high temperature and high pressure steam spraying gun is used for performing spraying treatment on a stamping position point, the work pressure of the high temperature and high pressure steam spraying gun is 350 bar, and the steam temperature is 150-160 DEG C; and after spraying treatment ends, punching is performed immediately, during punching, at the instant that the stamping part makes contact with a cutting edge, modifying coconut oil is fast sprayed onto the contact face of the punching face and the cutting edge, and liquid nitrogen is fast sprayed onto the contact face of the punching face and the cutting edge at the instant that the stamping part breaks away from the cutting edge. By means of the punching method for improving the sectional quality of the stamping part, the sectional quality of the stamping part obtained by means of final punching is good, the burr zone height is extremely small, the euphotic zone area is large and is 80% or above, and the fillet zone area is small.

The invention discloses an opposite teeth extruding type fine-blanking die and a fine-blanking method using the die. Opposite tooth-shaped plates and convex-concave dies are arranged on the upper side of an axial combining surface of the die; teeth cavity dies and anti-jacking plates are arranged on the lower side of the axial combining surface of the die; the opposite tooth-shaped plates and the teeth cavity dies are respectively provided with protruded annular gears, the section of the annular gear is of triangle tooth shape, and the contact lines of the annular gears and a blank are respectively arranged outside a blank upper workpiece outline and surround the outline of the workpiece. When a workpiece is blanked, an upper annular gear and a lower annular gear are respectively pressed into the workpiece to prevent a blank material from flowing in the horizontal direction, and the previous-period extrusion is carried out on the blank material so as to form a strong three dimension compressive stress inside the blank material, reduce the area of a tensile stress generated by the blank material in the blanking process, avoid the cracks, and eliminate sharp edges and burrs of the workpiece. By the invention, fine-blanked workpieces with good quality and high precision can be manufactured by utilizing a universal blanking device so as to promote the development of fine-blanking industry.

Radial cam loading and low-cycle fatigue splitting equipment for subdivision-type connecting rod fracture splitting comprises a base. The left side and the right side of the base are fixedly connected with four vertical columns. A cross beam is fixedly connected with the upper sides of the four vertical columns. Servo motors are bilaterally and symmetrically installed on the cross beam. The servo motors are connected with a cam plate lifting mechanism installed on the upper portion of a spline shaft. A motor decelerating power mechanism is connected with the lower portion of the spline shaft. The middle of the spline shaft is connected with a main working table. An upper end cam plate and a corresponding lower end cam plate of the main working table impact the upper end and the lower end of a core rod simultaneously, so that a connecting rod large head hole with a prefabricated fracture splitting groove is loaded repeatedly, and low-stress fatigue separating of the connecting rod large end and a connecting rod body is completed. The radial cam loading and low-cycle fatigue splitting equipment for subdivision-type connecting rod fracture splitting has the advantages of being environmentally friendly, energy saving, high in machining efficiency, wide in application range and good in fracture surface quality.