8results about How to "Strong pressure" patented technology

The utility model relates to blade manufacturing technical field especially relates to a kind of aeroengine blade welding fixture, including basin orientation positioning seat and back orientation positioning seat, the first end of basin orientation positioning seat and the first end of back orientation positioning seat are hinged, the second end of basin orientation positioning seat and the second end of back orientation positioning seat are connected by distance adjusting mechanism;Second end on basin orientation positioning seat and the first end on back orientation positioning seat are fixed with linear movement mechanism, the output end of two linear movement mechanisms is oppositely arranged, and the output end of linear movement mechanism is installed with pressure block, under the driving of two linear movement mechanisms, the pressure block on two linear movement mechanisms is mutually close or far away from each other.The beneficial effects of the utility model are: realize the clamping of blade blade body, effectively reduce the volume of clamp;Realize the positioning of wear block;Compact and light structure, compact and stable and reliable, satisfy the use requirement in vacuum arc brazing equipment.

The utility model relates to the technical field of plastic forming molds, in particular to a nozzle for a hot runner, which comprises a main body, a nozzle component is arranged at the top of the main body, and a sealing component is arranged at the top of the nozzle component; according to the utility model, a combined sealing structure of the elastic sealing ring and the sealing gasket is arranged between the nozzle bin and the connecting pipe, so that materials can be prevented from leaking, and the double-sealing structure can effectively prevent molten plastic from leaking from interfaces between the nozzle and the runner plate as well as between the nozzle and the mold; the temperature change in the nozzle bin can be monitored in real time through the temperature sensor, the accuracy of temperature control is ensured through high-precision monitoring, the power of the electric heater is adjusted through the external power source, the temperature change can be rapidly responded, the heating power can be adjusted in time, and it is ensured that the temperature in the nozzle bin is always kept within the set range; and the fluctuation of the temperature in the nozzle bin can be effectively reduced through precise temperature control, and it is ensured that the plastic always keeps good fluidity in the injection process.

The utility model discloses a band saw blade cutting rear end traction device which comprises a first roller assembly, a second roller assembly and a third roller assembly, the first roller assembly comprises a pressing roller and a motor, the motor drives the pressing roller to rotate, the second roller assembly comprises a pressing roller, two second side plates and two first sliding blocks, and the first sliding blocks can slide up and down along the second side plates. The two ends of the pressing rollers are rotationally connected with the first sliding blocks correspondingly, the two pressing rollers are arranged up and down, the band saw blade is pressed between the two pressing rollers, the third roller assembly is located above the second roller assembly and comprises at least one pressing wheel, the pressing wheels abut against the pressing rollers of the second roller assembly, and the pressing wheels are located above the band saw blade. The pressing wheel of the third roller assembly abuts against the pressing roller of the second roller assembly, so that pressure borne by the pressing roller of the second roller assembly is correspondingly located above the band saw blade, bearings at the two ends of the pressing roller are not stressed, and the service life of the bearings is prolonged.

The utility model discloses a die of a feeding mechanism of a large-stroke terminal, which belongs to the technical field of large-stroke terminal dies, and comprises a base, a lower die is mounted at the top of the base, fixing plates are arranged on two sides of the lower die, a top seat is mounted at the top of the base through guide columns, a hydraulic cylinder is mounted in the middle of the top seat, and the hydraulic cylinder is connected with the lower die. And an upper mold is installed at the telescopic end of the hydraulic cylinder, a motor is installed on one side of each fixing plate, and driving wheels are symmetrically arranged between the fixing plates and located at the two ends of the lower mold correspondingly. The power transmission device can be matched with a transmission medium and a guiding and tensioning device, materials can be automatically fed to a working platform to be machined, finished products are continuously output outwards through the transmission medium, the whole process is high in automation degree and stable in transmission, production efficiency and quality can be effectively improved, energy loss in the power transmission process is reduced, the energy utilization rate is increased, and production cost is reduced. And idle waiting of the equipment is avoided through a coherent process, so that the overall energy consumption is reduced.

The utility model relates to valve body shell technical field, concretely is a stamping, stretch forming split type welding assembly's valve body shell, including water inlet flange, water outlet flan, the water inlet flange and water outlet flan all include the annular groove flange, circular flange body and the outer turning ring circular flange of being provided with three kinds of flange form of circular notch, flat mouth and outer turning, and the annular groove flange, circular flange body and outer turning ring circular flan all are divided into two kinds of standard form of circular flange and circular flange with notch, the utility model has the advantages of multi-component combination welding, through the welding connection mode of many flanges makes the valve body shell more suitable, welding firm easy to assemble, production process and process are more environmental protection and do not have the advantages such as pollution discharge, solve the connecting drawbacks of existing water valve, matching and the limitation lead to in the installation process, and the problem of complicated production procedure and pollution emission in casting and forging process.

The invention discloses a mounting and adjusting device for mounting a wellhead flow of an oil-water well. Comprising a mounting cylinder, a connecting rod mechanism which can be positioned and telescopically connected in the mounting cylinder, a fixed claw mechanism which is fixedly arranged on the connecting rod mechanism and is used for being hooked and fixed on an oil-water well mouth flow path, and an abutting and fixing mechanism which is fixedly arranged on the mounting cylinder and is used for abutting and fixing on the oil-water well mouth flow path. Through mutual cooperation of the connecting rod mechanism, the fixing claw mechanism and the abutting and fixing mechanism, when the connecting rod mechanism is pulled, the fixing claw mechanism and the abutting and fixing mechanism can apply opposite force to oil-water well mouth flows on the two sides of equipment to be installed; the staggered oil-water well mouth processes on the two sides of the equipment to be installed can be easily aligned only by pulling the connecting rod mechanism by one person, the labor intensity of workers can be effectively reduced, and the working efficiency of installing the oil-water well mouth processes can be effectively improved. The device is suitable for being used when connecting pipelines on the two sides need to be aligned when an oil-water well mouth flow path is installed.

This invention discloses a band saw for cutting metal parts, including a bed, a saw frame, a band saw blade mounted on the saw frame, and a first drive mechanism. The bed has a worktable with a special clamping fixture. The fixture includes a positioning base, a floating main pressure plate, and a lateral clamping mechanism. The lateral clamping mechanism includes a drive block and a clamping block. The drive block has a first inclined surface on its side wall, and the clamping block has a clamping surface and a second inclined surface that mates with the first inclined surface. A first spring is fixedly connected between the clamping block and the positioning base. This band saw for cutting metal parts uses a positioning groove for initial positioning, the floating main pressure plate for vertical clamping, and the lateral clamping mechanism for horizontal clamping. Through mechanical linkage, it achieves bidirectional synchronous clamping of the L-shaped contour of the metal part, effectively solving the problem of torsion and displacement that easily occurs during cutting due to the asymmetry and low rigidity of the metal part, thus ensuring the perpendicularity and flatness of the cut end face from the root.

The present invention provides a mold cushion device that can well pre-pressurize a cushion pad when the cushion pad is in a mold cushion standby position. The mold cushion device of the present invention has a first oil cylinder (120) and a second oil cylinder (130) that are independently controlled simultaneously. In the case of pre-pressurizing the cushion pad (110), the first oil cylinder (120) is pressure-controlled through a first oil pressure circuit (140) so that the pressure of the lower chamber (120A) of the first oil cylinder (120) is pre-pressurized to a pre-set pressure, and the second oil cylinder (130) is position-controlled through a second oil pressure circuit (150) so that the cushion pad (110) is maintained in the mold cushion standby position. The force with which the first oil cylinder (120) raises the cushion pad (110) is balanced with the force (the force with which the cushion pad (110) is maintained in the mold cushion standby position) with which the second oil cylinder (130) lowers the cushion pad (110).