8results about How to "Controllable force" patented technology

This invention discloses a testing device and method for liquid crystal display modules, relating to the field of liquid crystal display module testing technology. The device includes a base, a flipping bracket, a housing, and a testing platform. The testing platform is equipped with a bidirectional clamping device driven by a first motor for automatically clamping the liquid crystal display module for bending resistance testing, and an auxiliary bending mechanism to ensure uniform force distribution. The housing also houses a click-resistance testing mechanism, including an electric hammer, a pressure sensor, and a displacement sensor, for testing the screen's resistance to click pressure. After testing, debris is automatically removed by a multi-stage cleaning mechanism including a scraper and a spray nozzle. When the testing platform flips, the spray nozzle moves closer to the testing platform to improve the cleaning effect. This invention features a high degree of automation, integrating bending resistance testing and click testing, providing accurate testing and thorough cleaning, effectively improving the efficiency and safety of liquid crystal display module mechanical performance testing.

The invention discloses a binder jet 3D printing forming method for a porous diamond grinding wheel and the obtained porous diamond grinding wheel. The binder jet 3D printing forming method comprises the steps that a frame structure of the diamond grinding wheel is designed; spraying the binder to form a frame structure green body: mixing the diamond abrasive and the filler to obtain mixed powder; the frame structure green body is filled with the mixed powder, and vibration compaction is conducted; the green body filled with the powder is put into an atmosphere furnace to be pre-sintered; the presintered brown part is put into a vacuum furnace for bronze infiltration treatment; impurities attached to the surface of the grinding wheel are removed, then the grinding wheel is dressed, and the diamond abrasive is exposed. According to the forming method, customization of the geometric shape and the internal pores of the grinding wheel can be achieved without consuming a large amount of computing power, the grinding wheel tissue, the pore diameter, the pore distribution and the like can be adjusted and controlled by adjusting and controlling technological parameters through a part formed by applying binder injection additive manufacturing to be matched with infiltration, and the prepared grinding wheel has higher pertinence.

The application discloses a kind of severe spinal deformity correction instrument and system, belong to medical instrument technical field, the severe spinal deformity correction instrument includes lifting screw holder and fixed screw holder, lifting screw holder is used to connect fixed to the pedicle screw of severe spinal deformity segment, lifting screw holder is equipped with lifting cross on it;Fixed screw holder is used to connect fixed to the pedicle screw of normal curvature segment of spine, and fixed screw holder is equipped with fixed cross on it;The side of lifting screw holder and fixed screw holder is equipped with the support rod of horizontal arrangement, and the severe spinal deformity correction instrument further includes connector.The severe spinal deformity correction instrument and system of the application can be suitable for severe spinal deformity disease, and power and accuracy can be controlled in operation process.

The compressor shell assembly comprises a compressor shell and a sensor fixing frame, the sensor fixing frame comprises a fixing frame body and a connecting base, the fixing frame body is provided with a containing channel and comprises a top plate and side plates located on the two sides of the top plate, and the side plates are connected between the connecting base and the top plate; the distance between the positions where the side plates on the two sides are connected with the connecting base is L, the diameter of the temperature sensor is D, any point on the inner wall face of the top plate corresponding to the maximum deformation cross section is a point A, the distance between the point A and the center point O of the temperature sensor is OB after insertion, and the distance between the point A and the point O is OA before insertion. For the difference (OB-OA) between the OB and the OA of the same point, the maximum value of the difference corresponding to each point is MAX (OB-OA), and D-L < = MAX (OB-OA) / 3. According to the invention, the influence of uncontrollable force application factors caused by uncontrollable deformation caused by connection of the side plates and the connecting seats is reduced.

The invention relates to the technical field of wafer manufacturing equipment, and discloses a wafer cleaning device and a wafer cleaning method. The wafer cleaning device comprises a cleaning tank body, a fixing assembly and a rolling mechanism, the fixing assembly is installed in the cleaning tank body, and the fixing assembly is used for clamping and fixing a clamping plug loaded with a wafer assembly; the rolling mechanism comprises a driving module and a rotating part, the rotating part is arranged in the cleaning tank body, the cross section of the rotating part is non-circular, and the driving module can drive the rotating part to rotate so that the rotating part can make intermittent contact with the circumferential face of the wafer assembly and drive the wafer assembly to intermittently rotate in the clamping plug. According to the wafer cleaning device, a shielding area for cleaning can be prevented from appearing on the wafer, and dirt residues on the edge of the wafer are avoided; and the wafer assembly rotates intermittently, so that the wafer damage can be reduced, enough time is provided for the original shielding area to be in contact with the cleaning solvent, and the cleaning effect is further improved.

The present invention discloses a disc-shaped toothed self-resetting device and its application, comprising a disc-shaped upper tooth piece, a middle tooth piece and a lower tooth piece, wherein both sides of the middle tooth piece are provided with engaging teeth, and the inner surfaces of the upper tooth piece and the lower tooth piece are provided with engaging teeth correspondingly, and the upper tooth piece, the middle tooth piece and the lower tooth piece are respectively penetrated by a prestressed threaded tube, and connected by a nut padded with a disc spring, so that the upper, middle and lower tooth pieces are meshed and overlapped together; the upper tooth piece and the lower tooth piece are connected to the building column through the extended end and the connecting steel plate or connected to the building column through the connecting boom truss, and the middle tooth piece is connected to the building beam or the building column through the sleeved fixed end plate. Under the action of the restoring force of the disc spring, the device restores the disc-shaped toothed device deformed after the earthquake to its original state, so that the building can be quickly restored after the earthquake. A double breakthrough is achieved in maintaining the appearance of the building and in earthquake resistance. The device has the advantages of compact design, controllable force, wide application range, easy operation, small workload and high reliability.

The utility model relates to tire packaging technical field discloses a full -automatic quick packaging equipment of automobile tire, including support frame, the upper end of support frame is provided with packaging mechanism, the packaging mechanism includes guide slot and roof, the rear end fixedly connected with first electric telescopic handle of roof upper surface, the output fixedly connected with placing plate of first electric telescopic handle, the outer wall slidingly connected with arc -shaped frame of placing plate one side, the other side of arc -shaped frame outer wall is provided with a plurality of toothing groove. In the utility model, the equipment is provided with positioning mechanism, and the user can adjust the distance between the positioning wheels according to the width of the tire, so that the equipment can cover a wider tire width range, reduce the positioning deviation caused by the change of tire width, improve the consistency of the overall packaging, so that the transmission wheel can be more closely and the tire friction is attached, and then the efficiency of the tire transmission packaging of the packaging mechanism is improved.