7results about How to "Avoid free turning" patented technology

The utility model relates to the technical field of bearing assembling, and discloses an automatic bearing ball assembling machine which comprises a machine body, a loading disc is fixed at the upper end of the machine body, an assembling base is fixed in the loading disc, a supporting column is inserted in the middle of the assembling base in a sleeved mode, a telescopic assembly is arranged at the lower end of the supporting column, and the supporting column and the assembling base are coaxially arranged. A plurality of balls are placed in the loading disc, a plurality of through holes matched with the balls are formed in the side wall of the assembling base, a retainer is placed at the top end of the telescopic supporting column, and an extrusion mechanism is arranged in the assembling base and comprises an extrusion plate, a clamping assembly, a lifting assembly and a transmission assembly. Therefore, the ball can be automatically assembled on the retainer, the problem of extremely low assembling efficiency in the prior art is solved, and the assembling efficiency of the bearing is improved.

The utility model belongs to the technical field of helmet, especially relates to a helmet, including helmet main part, the rotatory setting of face mirror has on helmet main part, face mirror can rotate to the front side of helmet main part and make face mirror be in the use state, face mirror also can rotate to the upper portion of helmet main part and make face mirror be in the storage state, the rotatory setting of helmet main part still has the jaw guard, the jaw guard is eccentric with face mirror Setting, the jaw guard can cross face mirror and overturn to the back side of helmet main part, thereby make helmet can be used as half helmet, the jaw guard also can cross face mirror and overturn to the front side lower portion of helmet main part, thereby make helmet can be used as full helmet, the driving part for driving face mirror movement is set up on the jaw guard, when face mirror is in the use state, the driving part can drive face mirror to rotate to the storage state, the utility model's purpose lies in providing a kind of helmet that the user uses conveniently.

The grain conveyor with the hidden take-up device comprises a grain conveyor body, and a plurality of take-up mechanisms used for winding power lines are arranged on one side of the grain conveyor body at intervals in the length direction of the grain conveyor body. The take-up mechanism comprises a fixing base fixedly connected with the grain conveyor body, a plurality of positioning rings arranged at the top of the fixing base at intervals in the width direction of the grain conveyor body, and a winding rod slidably connected into the positioning rings. A locking assembly is arranged at the top end of the fixing base, a plurality of locking parts matched with the locking assembly are arranged at the bottom of the winding rod in the length direction of the winding rod at intervals, and the locking assembly can be locked with the locking parts to limit sliding of the winding rod. The winding rod can be contained in the grain conveyor body in a sliding mode, the risk that people are stumbled and injured by collision is avoided, and the extending length of the winding rod can be adjusted according to the length of a power line.

The invention discloses an optical lens and a camera module, and relates to the camera field, the optical lens comprises a first disc, a second disc, a first lens and a plurality of second lenses, the upper side of the end face of the first disc is provided with a first round opening, the first lens is fixedly installed in the first round opening, and the second lens is fixedly installed in the second round opening; the end face of the first disc is provided with a plurality of first round openings which are annularly and uniformly distributed, the end face of the second disc is provided with a plurality of second round openings which are annularly and uniformly distributed, the second lenses are slidably mounted in the second round openings respectively, the end faces of the first disc and the second disc are connected and mutually rotate through a rotating shaft, and the second round openings can be sequentially aligned with the first round opening; a positioning mechanism is arranged between the first disc and the second disc, and transparent protective glasses are fixedly arranged at the ends of the right sides of the multiple second round openings. According to the invention, various focusing combinations of different specifications can be realized, so that different focusing imaging requirements of people are met, and the use of people is facilitated.

The utility model discloses a rotary table convenient for welding, which comprises a base, a table body, a positioning part for fixing a workpiece and a driving part for rotating the workpiece, the positioning part comprises sliding grooves formed in the two sides of the top of the table body respectively, sliding blocks connected with the sliding grooves, a two-way screw connected with the sliding blocks, a vertical block connected with the tops of the sliding blocks, an inserting groove formed in one side of the vertical block, an inclined block connected with the inserting groove, a positioning plate fixedly connected with one side of the inclined block and a positioning opening formed in the top of the inclined block. According to the rotary table, the base, the table body and the positioning component are arranged, so that the problems that when an existing rotary table is used, a workpiece can be fixed and conveniently welded, but the existing rotary table can only be used for welding a square workpiece, and the existing rotary table can not be used for welding a round workpiece, so that the work efficiency is greatly improved are solved. And clamping is relatively fixed, so that a workpiece is not stable enough, the welding result is affected, and the practicability is insufficient.

This invention belongs to the technical field of valve processing equipment, and particularly relates to a welding machine for valve processing, including a machine body, on which a control center and a feeding mechanism are integrated; it also includes a welding head mechanism, which is mounted on the machine body through the feeding mechanism and can achieve independent longitudinal and transverse feeding movements under the drive of the feeding mechanism. Compared with the prior art, this invention effectively improves the adjustment dimensions and welding quality of the welding machine for valve processing.