34results about How to "Solve Flatness Problems" patented technology

The invention belongs to the technical field of geotechnical engineering, and relates to a three-dimensional intermittent cut-through crack production apparatus and method of a cuboid rock test sample. The three-dimensional intermittent cut-through crack production apparatus comprises a stander, and an electric wire saw assembly, a three-dimensional moving assembly, a test sample fixing assembly and a crack width control assembly which are arranged on the stander. By adopting the three-dimensional moving assembly and the test sample fixing assembly, the multi-azimuth three-dimensional adjustment of the real rock test sample can be realized, and the production requirement of the cut-through crack can be met; meanwhile, the production of different intermittent prefabricated cracks of different dip angles and different widths can be completed by virtue of the cooperation of the electric wire saw assembly and the crack width control assembly; meanwhile, the problem of the manual saw wire cutting that the flatness and smoothness are insufficient and the crack difference of different samples is great can be effectively solved by virtue of the crack width control assembly, a test result can be maximally optimized, the accuracy of the test result can be guaranteed, and the cracking rule of the rock can be actually reflected.

A titanium alloy frame and covering variable cross-section components welding methods, it presets the titanium alloy foiling solder between the frame and covering to weld surface, uses thermal expansion assembly equipments or face pressurized thermal expansion assembly equipments clamping, heats the overall unit in vacuum environment to melting solder and covering entire surface welding, completes solder welding connection through diffusing treatment after solidifying, it also provides the structural components of face pressurized thermal expansion assembly equipments which can be used below 950 degree C repeatedly, the equipment structure is simple, woke reliable, cost low and easy to use, maintenance and repairs. And it reveals the innovative composite art parameters of high temperature solder welding and diffusing treatment using FTI high strength titanium alloy solder.

The invention provides a vertical profile single-rail traction robot. The vertical profile single-rail traction robot comprises a vertical walking rail, a mechanical arm for clamping and towing a profile, a transmission mechanism, a driving mechanism for connecting with the transmission mechanism, and a control mechanism; the mechanical arm is buckled on the side surface of the vertical walking rail, and is slidingly connected with the side surface of the vertical walking rail to realize walking movement by hanging on the side surface of the vertical walking rail; the transmission mechanism consists of a transmission device 1 arranged on the mechanical arm and a transmission device 2 arranged on the vertical walking rail; and the control mechanism is respectively in signal connection with the driving mechanism and the mechanical arm. The vertical profile single-rail traction robot adopts the mechanical arm as an actuation mechanism for towing the profile, and is flexible in operation and convenient for control. Meanwhile, the vertical profile single-rail traction robot can shrink the floor area to reduce the production cost, and is not influenced by the ground condition to effectively solve the problem of incapability of guaranteeing the profile towing straightness caused by uneven ground so as to improve the profile towing processing quality.

The invention provides a vertical multi-track pulling robot for section bars. The vertical multi-track pulling robot comprises M pulling units and a control mechanism. Each pulling unit comprises a vertical travel track, a mechanical arm, a transmission mechanism and a driving mechanism, the mechanical arms are used for clamping and pulling the section bars, the driving mechanisms are used for being connected with the transmission mechanisms, and the mechanical arms are clipped on the side surfaces of the vertical travel tracks and are slidably connected with the side surfaces of the vertical travel tracks, so that the mechanical arms can be suspended on the side surfaces of the vertical travel tracks and can travel and move; the transmission mechanisms comprise first transmission gears and second transmission gears, the first transmission gears are arranged on the mechanical arms, and the second transmission gears are arranged on the vertical travel tracks; the M pulling units are spliced with one another in an overlapped manner by the aid of the vertical travel tracks, and the mechanical arms of each two adjacent pulling units are suspended on the corresponding vertical travel tracks and can cooperatively alternately travel and move, so that the section bars can be pulled in a cooperative alternative manner. The vertical multi-track pulling robot has the advantages that the section bars can be fully automatically pulled in a multi-track mode according to production requirements, and accordingly the section bar pulling efficiency can be improved.

The invention belongs to the field of machine manufacturing, and particularly relates to a bending forming process and tool for a square pipe. The bending forming process comprises the following steps of (1) designing and manufacturing the tool: designing and manufacturing the dedicated tool according to the requirement of the bending size of the square pipe, wherein the tool comprises a substrate (1), a plurality of circle forming baffles (2) and a plurality of ejecting and pushing devices (3). The substrate (1) is used as the reference datum plane. The circle forming baffles (2) are fixed on the same surface of the substrate (1). The extension connecting lines of the baffles (2) coincide with the inner circle of a workpiece. The ejecting and pushing devices (3) is arranged along the excircle of the workpiece to provide needed external force for bending of the square pipe; (2) prebending the workpiece; (3) fixing the workpiece; (4) conducting hot straightening on the workpiece; and (5) removing the margin: removing the margin of the square pipe, forming a ring body after a joint is welded, and polishing a welding seam to be smooth. Through implementation of the bending forming process, indexes such as the roundness, the planeness and the appearance quality of the ring body after the square pipe is formed through bending can be effectively improved, the processing residual stress is removed, the structural strength of a product is improved, and compared with a conventional square pipe bending forming technology, the cost is low, the precision is high, and the process and the tool are suitable for popularization.

The invention discloses a vertical probe card device and a detection method thereof, and relates to the technical field of probe cards. The vertical probe card device comprises an upper-layer guide plate, a middle-layer guide plate, a lower-layer guide plate, deformation connecting devices, a first probe, a second probe, a circuit board and a first welding pad. The upper-layer guide plate, the middle-layer guide plate and the lower-layer guide plate are respectively and correspondingly provided with a plurality of vertical limiting through holes, a plurality of deformation connecting devices are arranged between the upper-layer guide plate and the middle-layer guide plate in an array mode, and one end of each of the first probes penetrates through the vertical limiting through hole of the upper-layer guide plate to be electrically connected with one end of each of the correspondingly-arranged deformation connecting devices; the detection method of the vertical probe card device sequentially comprises the steps of fixed installation, alignment and positioning, height setting, pressure boosting and closed circuit testing. According to the vertical probe card device and the detection method thereof, the problems of deformation and deviation of the existing probe, contact of the probe and replacement and repair of the probe are solved, so that the effects of good contact, clear probe marks and effective utilization are achieved.

The invention discloses an ECU sealing performance detection device with reliable sealing and pressing. The ECU sealing performance detection device comprises a clamp body, linear guide rails, slidingblocks and a supporting plate, wherein the clamp body is used for positioning an ECU, the linear guide rails are arranged on the clamp body, the sliding blocks are in horizontal sliding fit with thelinear guide rails, the supporting plate is arranged on the sliding blocks, a first inclined plane is arranged on the clamp body, a linear driver is arranged on the supporting plate, the linear driveris connected with an inclined block, the inclined block is provided with a second inclined surface matched with the first inclined surface, the inclined block is connected with an elastic sealing plate, the inclined block is provided with a vent hole, and a sealing hole communicating with the vent hole and the ECU air inlet is formed in the elastic sealing plate. According to the ECU sealing performance detection device, the technical problem that the air inlet of the ECU is difficult to seal is solved, and rapid assembling and disassembling of products can be achieved.

The invention discloses a clamp for controlling braze welding deformation of a fuel manifold. The clamp comprises a pressing unit positioned on the upper end surface of a nozzle and a supporting unitpositioned on the lower end surface of the nozzle, wherein the pressing unit comprises a stainless steel structural part (1) with a door-shaped section; two vertical sides of the structural part (1) are equal in width, but not equal in length; the supporting unit comprises a circular-ring-shaped base body (2), wherein observing holes (3) are formed in the outer periphery of the circular-ring-shaped base body (2) at equal intervals; and a supporting base (4) is arranged on a position, on the upper end surface of the circular-ring-shaped base body (2), between two adjacent observing holes (3). The clamp overcomes the problem that the end surface of the braze-welded nozzle is irregular and tilts, so that design requirements with planeness smaller than or equal to 0.3 mm are met, follow-up correcting difficulty is reduced, correcting working hours are shortened, and production efficiency is improved.

The invention relates to the technical field of heat chamber shell processing, in particular to a welding fixture for ensuring the flatness of the heat chamber shell. The fixing fixture comprises an inner tube frame disposed inside the hot chamber housing and an outer tube frame disposed outside the hot chamber housing. The welding method comprises following steps: (1) setting two inner tube frames on the platform and ensuring that the projections of the two inner tube frames on the platform are completely coincident; (2) a part A and a part B of the heat chamber shell are sleeved on the innertube frame; (3) two outer tube frames are sleeved on the exterior of the heat chamber shell; (4) deformation prevention is performed on the A and B parts of the heat chamber shell before welding; (5)manual argon arc welding is used to weld the butt wire of the hot chamber shell. The invention provides a welding fixture and a welding method for ensuring the flatness of a hot chamber shell, whichare improved from three aspects of an assembly mode, a tooling and welding deformation prevention, so as to solve the problem that the flatness of the hot chamber shell box is over-poor.

The invention discloses a fixed disc structure convenient for surface reprocessing. According to the fixed disc structure, a fixed disc comprises a fixed disc body and a plurality of material pipes arranged at the bottom of the fixed disc body; the fixed disc further comprises a plurality of process pipes and a cylindrical seat plate, wherein the process pipes are arranged on the side wall of the fixed disc body; the cylindrical seat plate is arranged at the bottom of the fixed disc body; an inner cavity is defined by the cylindrical seat plate; and the material pipes are arranged in the inner cavity formed by the cylindrical seat plate. According to the fixed disc structure convenient for the surface reprocessing, the process pipes are arranged on the side wall of the fixed disc body so that pipes welded at the bottom of the fixed disc are reduced and only the material pipes are arranged; and after the process pipes and the material pipes are welded on the fixed disc body, the surface of the fixed disc body can be conveniently reprocessed and the flatness of the surface of the fixed disc body is guaranteed.