8results about How to "Accurate rotation positioning" patented technology

This invention provides a plasma welding device and method for axial flow fan casings. It relates to the technical field of axial flow fan production equipment. The plasma welding device for axial flow fan casings includes a base and a plasma welding assembly. The top of the base is fixedly mounted with horizontally linearly distributed support side plates and a gantry frame. A first steering shaft is rotatably mounted on the support side plates. The first steering shaft has two sets of symmetrical casing fitting mechanisms (one above the other) for fixing the casing to be welded. A steering mechanism is provided on the support side plates, and the steering mechanism is fixedly connected to the first steering shaft. The plasma welding assembly includes an U-shaped bracket, and an L-shaped bracket is fixedly mounted at the bottom of the U-shaped bracket. This invention has the advantages of high automation, high welding efficiency and quality, and strong versatility.

The utility model discloses a saw cutting rotating device which comprises a motor sliding table, a driving mechanism arranged on the motor sliding table and an adjusting mechanism arranged on the motor sliding table. The driving mechanism comprises a servo motor mounting plate fixedly connected to the motor sliding table, a power assembly arranged on the servo motor mounting plate and a guide assembly arranged at the bottom of the motor sliding table, and the adjusting mechanism comprises a rotating seat fixedly connected to the upper surface of the motor sliding table; a second servo motor and a second planetary reducer are precisely rotated and positioned to drive a spindle motor supporting plate to rotate, so that a saw blade body rotates and stays at a correct position, precision machining and manufacturing are achieved, good accuracy and stability are achieved, cutting at various angles can be conveniently and precisely achieved, and production efficiency is improved. And meanwhile, the servo speed reducer and the planetary speed reducer can keep good stability during high-speed transmission, impact vibration is reduced, the cutting quality is improved, and meanwhile the service life of the device is prolonged.

The large die spotting machine with the rotary workbench comprises a base, a left machine frame, a right machine frame, a sliding table, an upper platform, a lower platform, a movable table, the rotary workbench and the like, the left machine frame and the right machine frame are arranged at the two ends of the base respectively, and the upper end of the left machine frame and the upper end of the right machine frame are connected with a top cover. One end of the upper platform is hinged to one end of the sliding table through a hinge, the lower platform is arranged on the base, the moving table is arranged on the lower platform, a rotating shaft is arranged on the center bottom face of the rotating workbench, and the rotating workbench is rotationally installed on the moving table through the rotating shaft. According to the utility model, the positioning precision is less than 0.05, the maximum rotation capacity of the equipment reaches 40 tons, the maximum static pressure bearing capacity reaches 600 tons, the die assembly of single-color, double-color and three-color dies can be met, the multi-purpose of one machine is realized, and the production efficiency is improved. The problems that an existing mold closing machine cannot achieve mold closing of a single-color mold, a double-color mold and a three-color mold on one device and a traditional mold closing machine can only conduct mold closing on one mold at a time are solved.

The utility model relates to a damper and discloses a gear damper, which comprises a mounting seat (10), a positioning hole (101) is arranged on the mounting seat (10), an elastic body (11) made of high polymer materials is mounted in the positioning hole (101), the elastic body (11) is radially limited in the positioning hole (101), a through mounting hole (111) is arranged on the elastic body (11), a connecting shaft (12) is in interference fit with the mounting hole (111), and the elastic body (11) and the connecting shaft (12) rotate relatively. The high polymer material serves as a damping material, has good elastic buffering and deformation recovery capacity, can absorb impact energy in the rotating process through self elastic deformation, reduces rigid friction between the connecting shaft and the elastic body, and accordingly improves the stability of relative rotation.

This utility model relates to the field of medical device technology and discloses a rotatable hanging bracket, including self-locking universal wheels. A base is fixedly mounted on the upper end of each self-locking universal wheel. A rotating mechanism is rotatably connected to the upper surface of the base. A support column is fixedly mounted on the upper end of the rotating mechanism. A limit block is fixedly connected to the upper end of the support column. A fixing mechanism is fixedly mounted on the upper end of the base. Several positioning holes are fixedly mounted on the outer surface of the support column. Four hanging bracket mechanisms are snapped onto the outer wall of the support column. In this utility model, the rotation and fixation of the rotating bracket are controlled by the intermeshing of positioning teeth. The intermeshing of the positioning teeth provides precise rotational positioning, allowing the hanging bracket to accurately stop at the required angle, facilitating adjustments by medical staff according to patient position and nursing needs. Simultaneously, the design of a single hook that can move freely up and down allows for flexible adjustment of the hook height according to actual needs, adapting to the hanging of different specifications of medical items and improving the versatility of the hanging bracket.

The application discloses a laser marking rotating positioning device for a cosmetic brush rod body, relates to the technical field of cosmetic brush laser marking, and comprises a base table, a gantry is fixedly connected to the middle of the upper surface of the base table, a laser marking mechanism is fixedly connected to the top of the inner side of the gantry, rotating dolly mechanisms are arranged on the two sides of the inner side of the gantry, a deflection adjusting mechanism is arranged on the gantry, the deflection adjusting mechanism is connected with the rotating dolly mechanisms, a driving shaft mechanism is arranged on the base table, two symmetrically-arranged moving frame mechanisms are arranged on the base table, the gantry is arranged between the two moving frame mechanisms, a driving frame mechanism is arranged on the moving frame mechanism, two symmetrically-arranged synchronous feeding plate mechanisms are arranged on the moving frame mechanism, a linkage mechanism is arranged between the synchronous feeding plate mechanisms and the driving frame mechanism, conveying dolly mechanisms are arranged on the inner sides of the synchronous feeding plate mechanisms, and the laser marking mechanism can be arranged to move and mark the cosmetic brush rod body, so that the efficiency of laser marking of the cosmetic brush rod body is improved.

The utility model discloses a drum-type conveying mechanism and a frame turnover machine, and relates to the technical field of frame turnover mechanisms. Roller limiting plates are oppositely arranged on the two sides of the inlet end of each conveying roller and used for guiding the frame body, and a roller motor is used for driving the conveying rollers to roll; the front baffle mechanism and the rear baffle mechanism are arranged on the conveying path at intervals; the first photoelectric sensor, the second photoelectric sensor and the third photoelectric sensor are sequentially arranged and linked with the front baffle mechanism and the rear baffle mechanism; the roller motor drives the frame body to move along a route limited by the roller limiting plate through the conveying roller; the frame turnover machine comprises a drum-type conveying mechanism; the frame turning bracket, the frame turning lifting mechanism and the rotating mechanism are installed on the machine frame and controlled by the electric control cabinet, and the frame turning bracket comprises an upper bracket and a lower bracket which are symmetrically arranged and connected through a bearing sleeve locking plate and is provided with a tow bar and a limiting rod. The device is high in automation degree and high in working efficiency.

The rotatable biopsy forceps comprise a front handle, an inserting rod is arranged at the rear end of the front handle, a pair of clamping blocks is arranged at the rear end of the inserting rod, and a cutting groove is formed in the middle of the inserting rod; a rod hole and a clamping groove are formed in the front end of the rear handle, and the rear end of the rod hole is connected with the clamping groove; the front handle is in running fit with the rod hole of the rear handle through the inserting rod, the rear end of the inserting rod penetrates through the rod hole and extends into the clamping groove, and the clamping block abuts against the inner wall of the clamping groove to limit axial movement of the inserting rod; the precise indexing mechanism is arranged between the front handle and the rear handle, and the front handle and the rear handle are precisely rotated and positioned through the precise indexing mechanism. The front handle can be accurately rotated and positioned relative to the rear handle, and the deflection angle of the forceps head can be visually seen through the angle mark.