12results about How to "Achieve circumferential positioning" patented technology

The utility model discloses a water pump flange press -mounting machine belongs to water pump manufacturing technical field, including the organism, is provided with the hydraulic telescopic link on the organism installation setting, and the output shaft of hydraulic telescopic link is provided with the pressure head, and the workstation is fixedly arranged below the pressure head in the organism. The utility model uses, and the pull rod is made to the elastic element with hand and is stretched to the radial contraction mechanism and keeps radial contraction state, then the rear cover of water pump is inverted and is buckled on the workstation, and the radial contraction mechanism enters the inside of rear cover, then the pull rod is loosened, and the pull rod moves down under the stretch of elastic element, and the radial contraction mechanism expands and touches the inside wall of rear cover, realizes the circumferential positioning of rear cover, and through setting radial contraction mechanism, can conveniently position the rear cover of water pump, and can adapt to the positioning of various specifications rear cover, when producing the rear cover of different diameter, need not to replace the positioning fixing device, convenient operation has improved production efficiency.

The utility model provides a counterbalance, a motor rotor assembly and a compressor, the counterbalance comprises a counterbalance main body, the counterbalance main body extends along the circumferential direction of a motor rotor, the counterbalance main body is provided with a windward end and a leeward end, and at least the windward end is provided with a suspended flow guide body extending along the circumferential direction of the motor rotor. A suspended overflowing space is formed between the side, close to the first end face, of the suspended flow guiding body and the first end face, and the suspended flow guiding body is provided with a flow guiding radial outer side face and a flow guiding radial inner side face. The flow guide radial outer side face gradually gets close to the radial inner side of the motor rotor and / or the flow guide radial inner side face gradually gets close to the radial outer side of the motor rotor so that the cross section of the suspended flow guide body can become smaller and smaller in the circumferential direction away from the balance block body. According to the utility model, the internal flow field of the compressor is effectively prevented from being disturbed due to the pumping effect, the operation noise of the compressor is reduced, and meanwhile, the oil spitting rate and oil spitting quantity of exhaust refrigerant of the compressor are reduced.

The utility model provides a reinforcing structure of an insert and an injection molding layer, and belongs to the technical field of pipe joints. The problem that an injection molding layer of an existing pipe joint is loosened is solved. According to the reinforcing structure of the insert and the injection molding layer, the circumferential outer side wall of the insert is provided with a plurality of first reinforcing rings which are annularly and outwards arranged in a protruding mode, a reinforcing groove which is inwards concaved is formed between every two adjacent first reinforcing rings, and the inner side wall of the injection molding layer is provided with a plurality of second reinforcing rings which are annularly and inwards arranged in a protruding mode; the injection molding structure is characterized in that a plurality of reinforcing pieces which protrude outwards are arranged on the circumferential outer side wall of at least one first reinforcing ring at intervals, and the reinforcing pieces are arranged in the injection molding layer in an embedded mode. The reinforcing structure of the insert and the injection molding layer has the advantage that the injection molding layer cannot rotate circumferentially relative to the insert.

The utility model provides a kind of automobile special-shaped gear, including gear body, the gear body one end is square and the other end is semicircular, the one end of gear body forms abutting surface, the edge of the other end of gear body is equipped with tooth along its circumferential, the center of the other end of gear body is equipped with fixed hole.Its fixed hole can be used with bolt connection, realize the axial fixation of gear;The abutting surface of the one end of gear body can be connected with the face-to-face abutting of other components fixedly installed gear, realize the circumferential positioning of gear;Other components are equipped with the structure of square positioning hole and positioning groove on fixed seat adaptation plug-in, so as to realize the circumferential positioning of gear.Through using the above technical scheme, on the basis of existing gear axial fixation, multiple structures for circumferential positioning and fixation of gear are added, so as to reduce the influence of radial external force on bolt fixed connection, avoid bolt loosening due to radial external force.

The utility model discloses a kind of part test tooling fixture bases with quick positioning groove, it is related to tooling fixture technical field, including substrate, V-groove, vertical insertion rod and electric cylinder, the top end of substrate is distributed with horizontal positioning convex rib at equal intervals, the both sides of substrate are equally spaced with side cushion seat, the top of substrate is provided with base, the outside of base is provided with positioning mechanism, the positioning mechanism is clamped to the protruding part of fixture bottom end by the V-groove of outside setting and is positioned and locked by the vertical insertion rod of vertical setting to the four around of fixture bottom end, the transposition mechanism is according to the size of fixture and the position required positioning. The utility model is positioned and locked to the bottom end of fixture by the way that V-groove and vertical insertion rod are combined in the fixture base, V-groove can be clamped to the protruding part of fixture bottom end Positioning, can effectively limit the movement of fixture in horizontal direction.

The present invention relates to a squirrel cage hammer riveting machine, comprising a hydraulic riveting machine, a riveting pressure head, a riveting workbench, a guide rail and a movable bracket, wherein the movable bracket is provided with a flipping device, and the flipping device is provided with a positioning device, wherein the positioning device positions the squirrel cage, and one side of the squirrel cage is placed on the riveting workbench, and the riveting pressure head located above the squirrel cage completes the riveting of the squirrel cage hammer head; initially, the squirrel cage central axis is vertically arranged, the movable bracket can rotate around the squirrel cage central axis, the positioning device can be vertically flipped on the flipping device, and the movable bracket can move on the guide rail along the length direction of the guide rail to drive the squirrel cage close to or away from the riveting workbench. Beneficial effects: the squirrel cage to be riveted can be clamped as a whole, the squirrel cage can rotate freely, and can be turned up and down, so that one-time clamping can be achieved, and the riveting of all hammer heads can be completed, thereby improving work efficiency, reducing labor intensity, and improving riveting quality.

The invention discloses a flying fork type coil winder scrap-wire-free device which comprises a rack, a workpiece temporary placing table, a rotary carrying mechanism, a workpiece winding table and a flying fork type coil winder are sequentially arranged on the rack, and the rotary carrying mechanism is used for placing a workpiece on the workpiece temporary placing table into the workpiece winding table; the flying fork type coiling machine comprises a supporting frame, a vertical direction servo module and an inclined direction servo module. The waste-wire-free device of the flying fork type wire coiling machine is convenient to use, automatic workpiece carrying is achieved through cooperative arrangement of the workpiece temporary storage table, the rotary carrying mechanism and the workpiece wire coiling table, the wire coiling action cannot be affected during feeding, meanwhile, the vertical direction servo module and the inclined direction servo module are arranged, and the production efficiency is improved. The functions of automatic wire hanging of a commutator of a workpiece and automatic shearing and clamping of start and end wires are achieved.

This utility model discloses a hub motor connection flange, comprising an integrally formed stepped flange body, consisting of a disc-shaped first part and an inner convex ring-shaped second part. A polygonal shaft connection hole is provided in the center for insertion and mating with the stator shaft of the hub motor, and is secured by a locking screw to ensure high-precision circumferential positioning and prevent loosening and angular backlash. The flange body has a host connection hole and a locking hole on its side, supporting rapid assembly and maintenance. The inner convex ring has a connection island, optimizing structural strength and weight. The flange is made of aluminum alloy, titanium alloy, or magnesium alloy, combining lightweight and high strength. This solution effectively solves the problems of loose connection, inaccurate positioning, and excessive weight in existing technologies, and is suitable for scenarios with high precision and reliability requirements, such as robotic vacuum cleaners.

The utility model discloses a kind of quick disassembly limiting structure of robot joint module, the structure includes two connecting pieces, sleeve kit, fixed part and hinge connecting block, wherein sleeve kit is made of two clamps, and quick disassembly is realized by screw on fixed part, the lug of the outer ring surface of two clamps cooperates with limiting block, ensure that motor corner is limited within 360 degrees, effectively avoid internal component damage caused by excessive rotation, the device adopts clamp structure, significantly reduce axial gap, make joint module structure more compact, by screwing loose fastening screw, joint module can be quickly disassembled, greatly improve maintenance efficiency, the design of limiting block and lug, avoid motor output end directly contact limiting block, improve reliability and service life, the utility model is suitable for quick disassembly and maintenance of robot joint module, with the characteristics of simple structure, convenient operation, high reliability, with wide application prospect and practical value.

The utility model provides a cylindrical roller bearing and ball bearing pairing structure. The cylindrical roller bearing and ball bearing pairing structure comprises a cylindrical roller bearing and a ball bearing, a semicircular oil groove is formed in one end face of the cylindrical roller bearing outer ring, a semicircular oil groove is formed in one end face of the ball bearing outer ring, after the two bearings are matched, the two semicircular oil grooves form a complete circular oil hole, and the oil hole penetrates through the whole outer ring formed by combining the cylindrical roller bearing and the ball bearing. A concave positioning notch is formed in the outer ring, close to the outer diameter surface, of the cylindrical roller bearing, and a concave positioning notch is formed in the outer ring, close to the outer diameter surface, of the ball bearing; forced oil injection lubrication and firm axial positioning of the bearing seat can be realized.

The utility model relates to the technical field of gear machining, in particular to a paper shredder transmission gear which comprises a base material, an outer flanging is arranged on the outer side of the base material, a gear contour is extruded on the outer vertical face of the outer flanging, and the thickness of the outer flanging is larger than that of the base material; the outer flange is arranged on the outer ring of the base material, the gear outline is extruded on the outer flange, a common gear is milled by using a blank with the same thickness, through comparison of the materials of the base material and the gear blank and the machining technology of the base material and the gear blank, the gear of the scheme is lower in manufacturing cost and lighter in mass, the thickness of the outer flange is larger than that of the base material, and the service life of the gear is prolonged. The thickness of the gear is increased through the outer flanging, stable operation between the gears is guaranteed, abrasion is reduced, and the service life is long.