12results about How to "Improve hole position accuracy" patented technology

The utility model discloses a high-precision hot forging piece punching die structure which comprises an upper die plate, the lower end of the upper die plate is connected with an upper padding plate, the lower end of the upper padding plate is connected with a punch fixing plate, the lower end of the punch fixing plate is used for positioning and fixing a spring, a guide pin and a punch, and the lower end of the spring is connected with a pressing plate through a screw. The guide pin and the punch penetrate through the pressing plate, a lower die is arranged below the pressing plate, a hot forging piece is arranged on the upper surface of the lower die, a punching sleeve is embedded in the lower die, a lower die base plate is arranged at the lower end of the lower die, and a bottom plate is arranged below the lower die base plate. The hole diameter precision and the hole position precision are high, and the quality is guaranteed.

This invention discloses a drilling device for processing and producing wrought iron railings, relating to the field of wrought iron railing processing technology. It includes a support leg, a drilling mechanism, and a fourth transmission rail. The drilling mechanism is located on the top of the support leg, and the fourth transmission rail is installed on the top of the support leg. The drilling mechanism includes multiple positioning frames that slide on the top of the fourth transmission rail. Each positioning frame has a railing placement groove on its top to ensure the holes are at the same horizontal position. After drilling, the railings are directly welded and fixed, ensuring that the holes of the connecting pieces align with the connecting posts during subsequent bolt connections. This improves installation quality and avoids enlarged holes and misalignment of the railings after installation. This process ensures that the holes of the connecting pieces and connecting posts correspond perfectly, improving hole accuracy. Direct welding after drilling reduces process steps, increases processing efficiency, and ensures overall structural dimensional stability.

The present invention discloses a bearing bush drilling correction device and a drilling method, comprising a bracket 1, a bracket 2 and a bottom plate which are relatively placed, the bottom plate is provided with a slot body, the slot body is slidably connected with a slide plate, the slide plate can move left and right, the slide plate is abutted with a spring, the right side of the slide plate abuts against the inner wall of the slot body, a dividing plate and a mold body are fixedly installed on the upper end of the slide plate, a fixed plate is installed on the upper end of the dividing plate, a countersunk hole is provided at the bottom of the mold body, an extension platform is provided on the outer side of the fixed plate, the extension platform is inserted into the mold body, the mold body is also provided with a mold cavity, the bearing bush body can be placed in the mold cavity, a bracket 3 is installed on the upper end of the bracket 1, the bracket 3 is connected with a slide bar, the slide bar is installed with a fixed block, and the fixed block can be moved above the bearing bush body. The present invention provides a bearing bush drilling correction device and a drilling method, which improve the drilling accuracy and increase the service life of the shaft and the bearing bush.

The lower swing arm welding clamp comprises a positioning plate, clamping plates, clamping assemblies and limiting assemblies, a positioning groove is further formed in the end face of the positioning plate, the shape of the positioning groove is consistent with that of a lower swing arm, the positioning groove is used for embedding the lower swing arm for positioning, the clamping plates are arranged on the two sides of the positioning plate, and the clamping assemblies are arranged on the clamping plates. The clamping plates are perpendicular to the positioning plate, clamping assemblies and limiting assemblies are arranged on the end faces of the clamping plates, and the clamping assemblies and the limiting assemblies on the end faces of the clamping plates on the two sides are oppositely arranged. A clamping cylinder pushes a clamping block to clamp and fix a lower arm wall body, so that a lower swing arm is located in a positioning groove in the end face of a positioning plate, and therefore welding errors caused by swing arm displacement in the welding process are prevented; the casing pipe is sleeved in the extended positioning shaft, so that the casing pipe is in close contact with the lower swing arm body to facilitate welding, and the hole site precision of the lower swing arm is improved in the welding process.

The invention provides brake pad back plate blank stamping equipment, and relates to the technical field of brake pad back plate production. The brake pad back plate blank stamping equipment comprises a stamping machine and a material conveying platform, the material conveying platform is arranged at the position of a feeding port of the stamping machine, the brake pad back plate blank stamping equipment further comprises a die discharging table, and the die discharging table is fixedly arranged at the lower end of the inner side of a shell of the stamping machine. The discharging mechanism achieves rapid interception and discharging of waste through pushing blocks with different heights, and clamping stagnation caused by adhesion of the waste to a mold and a formed blank is avoided. The outlet is formed in the die blanking table, so that the back plate can quickly fall down and be taken out after being processed, the production efficiency is improved, the potential safety hazard of manual operation is eliminated, and the effect of quickly and automatically discharging waste materials and processed parts is achieved; the problems that waste materials and workpieces need to be manually taken out of the die after stamping, efficiency is low, and potential safety hazards exist are solved.

This invention discloses a laser drilling device, comprising a feeding mechanism, a laser drilling mechanism, and a discharging mechanism arranged sequentially. The laser drilling mechanism includes a dual-axis moving platform, a vacuum positioning stage mounted on the dual-axis moving platform, and a laser unit positioned above the dual-axis moving platform. The dual-axis moving platform can drive the vacuum positioning stage to move along a first direction or a second direction. The laser unit has at least two spaced-apart laser emitters. The vacuum positioning stage is equipped with at least one set of stage assemblies, each set of stage assemblies having two material adsorption plates and a positioning component. The positioning component positions the material pieces on the two material adsorption plates, ensuring that the distance between the material pieces on the two material adsorption plates is the same as the distance between the two laser emitters. Without increasing the positioning time, this device effectively improves drilling efficiency while ensuring drilling accuracy.

The utility model discloses a profile punching device which comprises a machine frame and a controller, the machine frame comprises an inner machine frame and an outer machine frame, the inner machine frame is provided with a pair of parallel rails, the rails are provided with a moving mechanism capable of moving along the rails, the moving mechanism is provided with a clamping mechanism, the two ends of each rail are a feeding section and a discharging section respectively, and the two ends of each rail are respectively provided with a clamping mechanism. The middle of the rack is a punching section, a punching mechanism is arranged above the punching section, the controller is fixed to the rack, electrically connected with the moving mechanism, the clamping mechanism and the punching mechanism and used for controlling the moving mechanism, the clamping mechanism and the punching mechanism to work, the clamping mechanism fixes a sectional material on the feeding section, the moving mechanism conveys the sectional material to the position below the punching mechanism, and the punching mechanism conveys the sectional material to the position below the punching mechanism. The punching mechanism punches the profile according to the set configuration, after punching is finished, the conveying mechanism conveys the profile to the discharging section for discharging, and the punching and positioning device is accurate in punching and positioning and high in efficiency.

This utility model relates to the field of steel pipe processing technology, specifically to an integrated punching and drawing device for steel pipes. It includes a worktable with a clamping assembly fixedly installed in the middle. The clamping assembly includes a first cylinder, which is fixedly installed at the lower end of the middle position of the worktable. A base plate is fixedly connected to the first cylinder, and a fixing plate is fixedly connected to the upper end of the first cylinder. Fixing rods are fixedly connected to both the front and rear sides of the upper end of the base plate, and first connecting rods are sleeved on both the left and right ends of the fixing rods. A second connecting rod is connected to the middle position of the first connecting rod. During punching, a third cylinder drives the puncher downwards, while the second cylinder drives a robotic arm to apply axial tension to the steel pipe, balancing the punching force and preventing the thin-walled steel pipe from collapsing or the hole edge from deforming. The drawing action reduces material elastic rebound and burr generation, ensuring smooth hole walls and precise hole shapes.

The utility model relates to drilling and tapping technical field especially relates to a novel numerical control drilling integrated machine. Including support plate, the upper surface fixed connection of support plate has first motor, the output fixed setting of first motor has the pivot, the bottom fixed connection of pivot has the gear ring, the tooth end of gear ring is engaged and is connected with the gear, the inside fixed connection of gear has the fixed column, the bottom fixed connection of fixed column has the fixed plate, the lower surface fixed connection of gear ring has the push rod, the lower surface fixed connection of fixed plate has the connecting frame, one side of connecting frame is provided with the drilling mechanism, the other side of connecting frame is provided with the tapping mechanism, and the outer wall of support plate is provided with the adjusting assembly. The utility model provides a novel numerical control drilling integrated machine, and the first motor drives the pivot rotation, and through the cooperation of gear ring, gear, fixed column, push rod, fixed plate and connecting frame, it is convenient for switching drilling and tapping function, ensures that drilling and tapping carry out in the same position, reduces the error produced because of repositioning parts.

This invention discloses a drone-mounted fire-fighting projectile pod, belonging to the field of drone fire-fighting equipment technology, aiming to solve the problems of insufficient transportation stability, deployment safety, and accuracy when fire-fighting projectiles are used in conjunction with drones. The pod includes a main structure, a projectile connector, a suspension and deployment system, sensing and control components, a safety valve, an altitude-holding device, and an interface structure. The main structure adopts an aerospace-grade aluminum alloy unibody design, adaptable to various specifications of fire-fighting projectiles such as 2.5KG, 10KG, and 20KG. The suspension and deployment system adopts a motor-driven gear and gear-driven rack design, all integrated into one unit. The sensing and control components include a Hall sensor, a control circuit board, and a manual projectile mounting switch. The safety valve has a mechanical pin-type safety structure. The altitude-holding device uses millimeter-wave scanning radar. The interface structure has multiple reserved ports and a standardized design. This invention achieves reliable control of the entire process of fire-fighting projectile transportation, mounting, and deployment, with strong adaptability and high safety, and can be widely used in drone fire-fighting operations.

The invention relates to the technical field of printed circuit board manufacturing, in particular to a multilayer circuit board with through holes and blind holes and a manufacturing method thereof.The manufacturing method of the multilayer circuit board comprises the steps that a substrate is provided, and the substrate comprises a first core board, a dielectric layer and a second core board which are sequentially arranged in the first direction; processing a first through hole and a second through hole in the substrate, wherein the first through hole and the second through hole both penetrate through the first core plate, the dielectric layer and the second core plate; and first filling media are arranged in the second through holes, one part of the second through holes are filled with the first filling media, and the other part of the second through holes form first blind holes. According to the multilayer circuit board with the through holes and the blind holes and the manufacturing method of the multilayer circuit board, the hole position precision of the through holes and the blind holes can be improved, and the performance and reliability of the multilayer circuit board are guaranteed.

This invention relates to the field of building construction, and more particularly to a construction device for pre-embedded components in building walls. The device, as described in this invention, features a vertical guide rail on a lifting frame with vertical rods. These rods are first electromagnetically attached to pre-embedded plates already installed in the wall using an electromagnet. The lifting frame then lowers the worker to the lower installation position to install the next set of pre-embedded plates and pre-embedded screws. The lifting frame is not easily affected by crosswinds, thus preventing slight swaying. This invention solves the technical problem of swaying caused by crosswinds when workers are drilling and installing pre-embedded components on walls, which affects the worker's operational accuracy and construction efficiency.