Device for the assembly of parts by pressing
(57) Abstract:Usage: in mechanical work, Assembly, forging connections. The inventive device is provided with a mandrel made in the form of a punch with a radial protrusion and covering his spring bushings with continuous grooves, which are the projections of the punch. The item is installed in the socket formed by the end face of the punch and acting with respect to it by the end of the sleeve. 4 Il. The invention relates to machining operations, in particular to equipment for Assembly and forging connections.A device for Assembly of parts by pressing, containing mounted on the basis of the Executive body, the drum is arranged in the guide bushings of the liners installed with periodic interaction with the Executive authority  .A disadvantage of the known device is that it, having a constant length of stroke of the Executive body, it is not possible to embed several parts into one hole at different depths, without damaging the previous details the subsequent. This Assembly is difficult because some parts can be based on the th.This is achieved by a device for Assembly of parts by pressing, containing mounted on the basis of the Executive body, the drum is placed in the slots of the mandrel established with periodic interaction with the Executive body, the mandrel is made in the form of a punch and covering his sleeve, movable and spring-loaded relative to the punch and provided with grooves from the side of the working end, which includes radial projections made on the outer surface of the plug, and the end of the last executed recessed relative to the end face of the sleeve to form a nest under the injected part.In Fig. 1 shows a device, a General view of Fig. 2 is a view along arrow a in Fig. 1; Fig. 3 - section b-B in Fig. 2; Fig. 4 - section b-b of Fig. 2.Device for the Assembly of the base unit 1 with the cuff 2, a felt seal 3 and the metal protective ring 4 contains fixed on the base 5 guide 6, which is the slider 7 and rigidly attached to it the power cylinder 8, the piston rod (not shown) associated with the stop 9.On the base 10 can be rotated by a fixed angle by means of a separating mechanism 11 smotrova is executed in the form of punches 15 and covering their sleeves 16. The plungers 15 are rigidly connected with the plungers 14 and sleeve 16 mounted on the plungers movable and spring-loaded against them by the springs 17.On the outer surface of the punch 15 is a radial projections 18 and bushings on the part of their working ends of the respective projections 18 through the slots 19. The working ends of the plungers 15 is recessed relative to the ends of the sleeves 16 so that the protrusions on the latter form of socket 20, 21, 22 for injected parts that are in them by their outside diameter.In the drum 12 is made grooves 23 for the passage of the lever 24 connected via a lever system with the slide 7 and cooperating with the plungers 14.The device operates as follows.The position of the Assembly served base product 1. The operator sets collected details - cuff 2, a felt seal 3 and the metal protective ring 4 in the slot of the drum 12, respectively, 20, 21, 22. Turns on the power cylinder 8 and the piston rod with the stop 9 is moved to the base unit 1, and then begins to move the cylinder body 8 on the slide 7 along the guide rails 6. Through a system of levers, this movement is transmitted to the lever 24, the upper arm of which engages in the groove 23 Bayelsa, and the sleeve 16, tucked up by the spring 17 to the punch, moves together with the sleeve 2 (Fig. 3) in the zone of the Assembly. When the plug 15 is centered on the speaker end of the shaft of the product 1. When he reached the end product, the sleeve stops, and the punch 15 continues to move, zapressovyvaja detail in the body, and the working ends of the projections 18 of the punch limit the depth of crimp.After removal of the mandrel and the rotation of the drum 12 to the next position is mounted on the shaft felt seal 3.Then, similarly to the pressing of the cuff is press-fit into the housing with metal protective ring 4 (Fig. 4). (56) 1. USSR author's certificate N 664814, class B 23 P 10/02, 1979. DEVICE FOR the ASSEMBLY of PARTS by PRESSING, containing mounted on the basis of the Executive body, the drum is placed in the slots of the mandrel established with periodic interaction with the Executive body, characterized in that, with the aim of expanding technological possibilities, the mandrel is made in the form of a punch with covering his movable and spring-loaded relative to him by the sleeve, made with grooves from the side of the working end, with the outer surface of the punch relative to a radial end face of the sleeve to form a nest under the injected part.
FIELD: repairing equipment of shops, namely of locomotive depots of railway road transport vehicles.
SUBSTANCE: movable installation includes lifting table having lower wheeled platform and jointly mounted on it upper stand; mechanism for lifting and descending said stand; power hydraulic cylinder mounted on upper stand and communicated by means of hydraulic lines through control unit with high-pressure pump system; clamping device for mounting-dismounting bearing assemblies. High pressure pump system includes tank, pump aggregate, draining pipeline, suction pipeline connecting inlet of pump aggregate with tank. Lifting and descending mechanism is in the form of hydraulic cylinder and it is mounted on lower platform. Pump aggregate is arranged on upper lid of tank and it is in the form of displacement hydraulic pump with electric motor. Filter is mounted in suction pipeline. Control unit is in the form of body having two built-in safety valves, tap distributor and built-in non-return valve. Manometer and additional filter connected with draining pipeline and having pouring hole are connected with control unit. Hydraulic lines are in the form of flexible hoses. Installation is provided with additional power hydraulic cylinder that forms together with connected in parallel main hydraulic cylinder unit of power hydraulic cylinders. Said unit of power hydraulic cylinders is placed on supporting sheet-plate mounted on upper stand with possibility of rotation or removal from upper stand and with possibility of moving in range of length of flexible hoses. Similar cavities of hydraulic cylinders are mutually communicated. Clamping device includes movable and stationary plates mounted respectively on rods and back lids of hydraulic cylinders and designed for joining tie rods of attachment.
EFFECT: enhanced reliability, no-failure operation of installation.
FIELD: assembling of precise units of instruments by pressing-in with use of calibrated effort, by riveting and expanding with use of precession tool.
SUBSTANCE: press includes П-shaped housing; adjustable table mounted in struts of housing and fixed to said struts by means of pins; power hydraulic cylinder with axial motion of rod; rotation drive of precession head; pumping station of hydraulic drive unit. Rotation drive of precession head includes electric motor and belt transmission. Power hydraulic cylinder is rigidly mounted on cross piece of housing and it carries plate on end of spring-loaded rod. Said plate supports two plungers spaced in parallel relative to axis of rod and spring-loaded relative to housing. Pulleys of belt transmission of rotation drive are mounted in casing. The last is secured to plate in such a way that driven pulley is mounted on spindle coaxially relative to rod of hydraulic cylinder and driving pulley is mounted on the same axis as shaft of electric motor placed in cross piece of housing. Driving pulley and shaft of electric motor are kinematically joined by means of other shaft whose one end is mounted in shaft of electric motor and whose other end is joined by means of sliding dowel with opening of supporting axle of driving pulley. Spindle of driven pulley is joined with precession head.
EFFECT: improved design providing enhanced rigidity and working accuracy of press.
FIELD: mechanical assembling procedures, namely equipment for assembling aggregates of caterpillar transport vehicles, for example semiautomatic machines for assembling caterpillar tracks.
SUBSTANCE: in apparatus for assembling chain stop plate is mounted in such a way that its working surface is arranged in plane normal relative to pressing in plane. Upper non-working portion of stop plate at side of ending pressing-in cycle is inclined in horizontal plane to side from rotor type conveyer. Lower non-working portion of plate in vertical plane is inclined relative to vertical line to side from rotor type conveyer. Stop part of pusher exceeds diameter of head of pin. Rigid guides are arranged in plane parallel to pressing-in plane; said guides are in the form of roller tables with pitch between rollers of roller table less than pitch of chain links. Guides embrace upper branch of conveyer from downwards and branch of chain from upwards at least along the whole length of it. Drive unit is provided in addition with back-stroke mechanism. Splitter is in the form of plate that is jointly mounted in its mean portion along lateral sides on supporting surface in horizontal plane along motion direction of conveyer for moving pins and it forms two-arm lever. One end of said lever is spring-loaded from downwards with possibility of engaging with dents of conveyer for moving pins. Other end of said lever is Г-shaped one and it may engage by free end with pins on inclined trough. Horizontal axes of articulation joints in vertical plane are provided with holding levers rigidly joined with plate and mounted with possibility of engaging with pins on inclined trough.
EFFECT: enlarged manufacturing possibilities, enhanced operational reliability.
FIELD: mechanical engineering.
SUBSTANCE: mandrel has guide, working part made of deformable teeth, calibration parts, and diverging groove made in the guide and working parts. The expanded end of the groove is in coincident with the origin of the guiding part. The groove that ends at the last deformable tooth of the working part has radius-shaped cross-section.
EFFECT: enhanced quality of the press joint and expanded functional capability.
FIELD: machine engineering, namely equipment for dismounting press-fit joints, possibly restoration of electric machines.
SUBSTANCE: apparatus includes housing with platforms for horizontal and vertical motions. Part to be dismounted is placed on horizontal motion platform and it is fed to stripping mechanism. The last is joined with vertical motion platform by means of fastening members and it is provided with adjusted grips supporting heating members with possibility of their axial movement. Heating members are in the form of nozzles for alternating feed of hot and cooled air.
EFFECT: reduced axial errors between dismounted part and stripping mechanism, lowered efforts for stripping parts.
5 cl, 5 dwg
FIELD: mechanical engineering.
SUBSTANCE: device comprises the mechanism for locking pressed parts made of an extensible sleeve. The first power hydraulic cylinder is used for moving parts and can rotate between two vertical unmovable pillars. The pillars are pivotally connected in pair with movable vertical pillars through the top and bottom horizontal clamps. The extensible spring-loaded stop with the drive and the first hydraulic cylinder are axially aligned. The first power hydraulic cylinder receives the second power hydraulic cylinder whose rod is provided with first center and spring. One end of the spring co-operates with the piston, and other end of the spring co-operates with the face of the extensible sleeve. The extensible stop receives the second center with the stack of plate springs that is coaxial to the first center. The bottom clams are provided with a lifting-rotating device.
EFFECT: reduced labor consumption for making and simplified structure.
1 cl, 2 dwg
FIELD: devices designed for simplifying procedures of assembling/disassembling units.
SUBSTANCE: crank stripper includes cross piece 1 supporting power mechanism in the form of one-way telescopic hydraulic cylinder 2 having thrust rod 3 for shaft of crank 14; mechanism for forced closing of foots having cylindrical discs 8, 9, paired plates 10 and double-arm levers 4,5. One arm is used for engaging with crank; other arm of is cone one and it may rest upon lateral surface of cylindrical disc secured to lateral side of cross piece. Double-arm lever whose arms are mutually inclined by obtuse angle is jointly mounted through paired plates in center of disc. Articulation joint of lever is mounted in edge portion of second lever arm on line of inner surface of first lever arm.
EFFECT: intensified clamping of part by foots, enhanced efficiency, lowered cost price of working operations.
FIELD: mechanical engineering.
SUBSTANCE: method comprises gripping the part to be dismounted and applying axial load by means of at least two ties and, e.g., hydraulic cylinder. The rod of the hydraulic cylinder cooperates with the face of the shaft. The ties are interconnected via a plate opposite to the end of the part to be dismounted. Each of the ties is provided with the eccentric groove. The ties are set in the openings in the part to be dismounted for permitting engagement by their step defined by the eccentric groove. Between the wall of the opening of the part to be dismounted and each tie is sickle-shaped bushing member. The hydraulic cylinder abuts against the plate so that to provide relationships D1 ≤ D2, b ≥ H, e = h, where D1 is the outer diameter of the tie, D2 is the diameter of the opening in the part to be dismounted, b is the width of the eccentric groove, H is the thickness of the part, e is the eccentricity of the groove with respect to the axis of the tie, and h is the maximum thickness of the sickle-shaped bushing member.
EFFECT: expanded functional capabilities.
1 cl, 2 dwg
FIELD: machine engineering, namely mechanical strippers.
SUBSTANCE: stripper includes traverse bar with grips, screw having two outer threads with different pitches; main detachable sleeve mounted by thread whose pitch is less than that of said screw; additional threaded sleeve mounted by second thread of said screw; holder embracing both sleeves, fixed relative to them in angular direction and resting by its inner shoulder upon end of main sleeve. Inner shoulder is formed on one end of holder; other open end of holder is arranged in through opening of traverse bar and it is rigidly joined with said bar. Threads of powerful screw have similar sign; additional sleeve has outer flange spaced from open end of holder by interval determined according to relation K = B1(H2/H1 - 1), where K - interval between outer flange of additional sleeve and open end of holder; B1 - displacement (caused by main sleeve) of part stripped by means of stripper; H2 - thread pitch of additional sleeve; H1 - thread pitch of main sleeve. Sleeves are mutually spaced by interval T exceeding value of mutual convergence of sleeves.
EFFECT: simplified usage of stripper.
FIELD: railway road machine engineering, possibly repairing of railroad machines.
SUBSTANCE: press includes frame having base and two struts mutually joined by means of two columns; working cylinder mounted on one of said struts; force and supporting traverse bars with rollers. Said traverse bars are arranged between struts of press frame and they are mounted with possibility motion on rollers along columns of power frame. Force traverse bar is mounted with possibility of fixing it to columns.
EFFECT: enlarged manufacturing possibilities, improved quality of combining wheel pairs, simplified design of press.