49results about How to "Guaranteed installation position accuracy" patented technology

The invention discloses a welding substrate for electronic products, which comprises a substrate, a metallized pattern layer is arranged on the substrate, a gold-tin thin film layer is arranged on the metallized pattern layer, and a gold-tin thin film layer is arranged between the gold-tin thin film layer and the metallized pattern layer. The barrier layer is a single-layer metal film layer or a composite metal film layer; the gold-tin thin film layer is a gold-tin alloy layer, or a multilayer structure in which gold layers and tin layers are alternately compounded. The film substrate of the present invention has high graphic line precision and good surface flatness of the film layer, and can directly solder and position the chip without prefabricated solder, can ensure the installation and positioning accuracy of the chip, and is suitable for optoelectronic products such as high-power LED optical communications. At the same time, the ratio of the amount of gold and tin in the film substrate of the present invention can be adjusted according to the difference of the chip to be welded on the substrate film substrate, so that the soldering performance of the chip is better.

The invention discloses a thermal plastic composite material flexible resistance welding device. The device comprises a servo driving motor, a precision roller guiding rail linear movement system anda thermal plastic composite material resistance welding platform, wherein the precision roller guiding rail linear movement system is of a rectangular structure, the top face is provided with a rack in the length direction, and power output is provided by the servo driving motor; the thermal plastic composite material resistance welding platform can be installed on the precision roller guiding rail linear movement system by moving along the rail on the precision roller guiding rail linear movement system. The device has the advantages that welding lower pressure is provided through the servo pressure system, a to-be-welded part is positioned and resistance heating are conducted by a key type flexible electrode module, welding current is guided by connecting the electrode module, and therefore the purpose of thermal plastic composite material static and continuous dynamic flexible resistance welding is achieved.

The invention designs a gate slot construction device, which is used for realizing rapid gate slot construction of a gate by adopting a mechanical process. The device is provided with a gate slot positioning and clamping mechanism and a steel template, wherein left and right side members of each section of gate slot are connected with a climbing mechanism; after a gate slot is arranged, the lower end of the gate slot is kept fixed; a gate slot pouring space is closed by using the steel template, and concrete is poured; and the gate slot climbing device climbs by one section after one layer of concrete is poured every time. A truss structure in a novel gate slot construction device for the gate has the characteristics of high overall rigidity, high reliability and generality in a certain size range, so that the conventional open air dangerous operation way is turned into a way which is centered by highly mechanical assembly operation and assisted by manual operation, the construction safety and quality of a gate slot for a planar gate or an arc-shaped gate are guaranteed easily, and maximization of an engineering economic value is realized through a rapid construction way.

The invention discloses a storage and transportation launch box precision adjustment device and an adjustment method thereof. First, the installation and positioning accuracy of a simulation debugging platform is adjusted to meet the standard, and then a matching connection and an installation position are arranged between the storage and transportation box body and the simulation debugging platform. The flexible and adjustable locking adjustment component and locking positioning component are used to detect the installation positioning error through the sample column that is slidably installed inside the storage box body, and then flexibly adjust the gap between the locking adjustment component and the locking positioning component in real time according to the positioning error. Therefore, the accuracy of the installation position of the storage box body itself is up to the standard, thereby ensuring that the levelness, straightness and axial positioning position accuracy of the final solid part or device installed inside the storage box body are up to the standard.

The invention provides a method for machining a universal robot welding fixture of a middle-large excavator movable arm and a supporting base. Firstly, an appropriate plate is selected for serving as a base; secondly, a first positioning pin is assembled on a welding robot working table on one side; the base is locked on the welding robot working table; two second positioning pins are assembled in the middle of the base, and the second positioning pins are in interference fit with the base; two holes are drilled in the rear side of the base, threaded rods are inserted into the holes, and positioning sleeves are assembled on the threaded rods; a workpiece is placed on the base, positioned and locked; an U-shaped hole is machined in the front side of the base, and pressing plates are installed in the U-shaped hole, so that the pressing plates are made to press and firmly lock the workpiece. According to the provided method, the defects in the prior art are overcome, welding precision is high, machining time is short, in addition, performance is reliable, precision of installation positions of the movable arm and a bucker rod is guaranteed, and then using performance and reliability of the movable arm are guaranteed.

The invention provides a wall-hung plate installation positioning rule and a wall-hung plate installation positioning method, and aims to solve the problems that in the prior art the positioning precision in wall-hung plate installation cannot be guaranteed, and the installation positioning efficiency is low. The wall-hung plate installation positioning rule comprises a fixed rod and a rotation positioning rod; the fixed rod has a fixed surface and is provided with an electric rotation mechanism and a level meter; the electric rotation mechanism comprises a control switch, a motor and a control element, wherein the motor and control element are arranged in the electric rotation mechanism; the horizontal direction of the level meter is perpendicular to the length direction of the fixed rod, one end of the rotation positioning rod is fixedly connected to the output shaft of the motor, and the length direction of the rotation positioning rod is parallel to the fixed surface of the fixed rod. By using the provided wall-hung plate installation positioning rule to position a wall-hung plate, the inclined angle of the wall-hung plate can be controlled precisely, and thus the positioning precision is guaranteed, so the condensed water in the water-receiving disc can be smoothly and completely discharged on the basis that the normal operation and service life of air conditioner are not affected, and the installation positioning efficiency is greatly improved at the same time.

An integrated flexible support structure of a rectangular off-axis metal mirror belongs to the technical field of optical remote sensing. The support structure includes a mirror body and three flexible supports; wherein, the three flexible supports are arranged on the side surface of the mirror body with a uniform circumference; each flexible support includes a flexible board and two connection platforms, and the flexible board is fixed to the mirror body connection, the flexible board is provided with installation positioning screw holes, a first flexible slot, a second flexible slot and a third flexible slot, the first flexible slot and the second flexible slot are arc-shaped and arranged symmetrically with respect to the installation positioning screw holes, The middle part of the third flexible slot is arc-shaped, coaxial with the first flexible slot and the second flexible slot and arranged vertically. The connection platforms are respectively fixed on both sides of the flexible board. Fixed connection with the mirror body. The support structure can greatly reduce the change of gravity, the change of temperature and the internal stress of the mirror generated in the assembly process, and ensure the surface shape accuracy and the installation and positioning accuracy.