Press with precessing head
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.
The invention is intended to build accurate instrumentation units by pressing calibrated force, riveting and expanding precancerous tool.
Known pressing machine according to the Japan patent No. 6041073 from 01.08.94, 23 P 19/02 that contains the table to install different types of parts instrumental support with several pressing tools that are installed with the possibility of movement. Support is rotatable about an axis parallel to the direction of pressing. The machine includes a positioner, the locking base table at position offset, and addressed to the parts of the press site. Press a node can move along the toolbar, and when the turn table can be abstracted from zone offset.
The use of the known technical solutions can be build using several pressing tools, minimizing costs, but riveting and expanding precancerous tool is not provided.
Known hydraulic press PPK Corporation “enabled” according to the catalogue “Industrial hereinstant” CJSC “Corporation enabled”, 2001, p.29 used for mounting, removing, editing and flexible parts. The press has a U-shaped frame mounted on it to reinstall the Desk and up-movable power gidrol is int.
The lack of design - reduced stiffness and precision of the relative position of the table and of a cylinder due to the presence of gaps in both nodes, riveting, and flare precancerous tool because this is difficult.
The objective of the proposed technical solution is the increase in the rigidity and accuracy of the press for the work precancerous head.
The technical result is achieved by the fact that in the press, containing the U-shaped frame mounted on its racks adjustable table, a clamp-on upright frame posts, the power cylinder with the axial movement of the rod, the rotation drive precancerous head from the motor by a belt, pump station hydraulic, made the following improvements.
The power cylinder is rigidly mounted on the crossbar of the U-shaped frame and bears on the end of a spring-loaded rod plate with two spaced parallel to the axis of the rod, and a spring-loaded against the frame with rolling pin. The pulley belt transmission of the rotational drive installed in the enclosure, mounted on the plate so that the driven pulley is placed on the spindle coaxially to the piston rod of the hydraulic cylinder, and the drive pulley is on the same axis with the shaft of the electric motor, mounted on the cross member of the frame, and the driving pulley and the motor shaft is kinematically connected to other VA the Ohm, on the one hand fixed on a motor shaft, and on the other, connected by a sliding key with a hole in the reference axis of the driving pulley. The spindle secondary pulley connected to precancerous head.
The device illustrated by the drawings, in which figure 1 shows a General view of the press, side view; figure 2 is a front view of the press; figure 3 is an axial section of a cylinder, rotary drives and precancerous head, section a-a in figure 1; figure 4 is an axial section of the drive rotation precancerous head.
On the rack 1 U-shaped frame 2 with pin 3 is up-mobile desktop 4 (figure 1 and 2). On the cross frame 2 (figure 2 and 3) is fixed to the power cylinder 5, the bearing on the end of the spring rod 6 plate 7. The plate 7 is hung against the frame 2 spring-loaded rolling pin 8. The axis of the rolling pin 8 parallel to the axis of the rod 6.
For supplying fluid under the piston 9 of the cylinder 5 has a pump station 10 to the control unit press 11.
The plate 7 is fixed to the housing 12 (Fig 3 and 4) belt so that the driven pulley 13 coaxially with the shaft 6 and the drive pulley 14 is kinematically connected with the shaft 15 of the motor 16 to the other shaft 17, on the one hand fixed on the shaft 15 of the motor 16, and on the other hand carrying a sliding key 18, is placed in the hole 19 of the supporting axis 20. The housing 12 is made of rashemen the m It sets the device to adjust the tension of the belts (not shown).
At the ends of the rolling pin 8 installed nut 21 to adjust the stroke of the piston rod 6. By limiting the maximum stroke of the piston rod 6 is the end of the flange 22. Precancerous head 23 with its tapered shank 24 is installed in the mounting hole 25 of the spindle 26. Precancerous head 23 is equipped with a removable mandrel 27 installed at an angle to the axis of the head.
The press works with the pumping station 10 and included the motor 16 in a semi-automatic cycle. Thus rotation of the motor 16 is transmitted through the pulleys 14 and 13, the shank 24 precancerous head 23 to the mandrel 27. According to the processing cycle is the working movement of the plate 7 to the stop nuts 21 in the crossbar of the frame 2. Builds a press-fit connection, the head of the rivet is made mandrel 27 precancerous head 23. Used appliances for installation of the compression parts on your desktop 4 (not shown). Reinstalling desktop 4 height is carried out manually using pins 3.
When the press-fit type connection sleeve - shaft, not requiring for its implementation processimage of movement of the tool, the rotation of the motor 16 is disconnected from the control unit press 11, and instead of precess the dominant head 23 is mounted a conventional mandrel in the landing tapered bore 25 of the spindle 26. The workers movement is carried by the hydraulic cylinder 5 without rotation of the spindle 26.
The advantages of the proposed design to increase the rigidity and accuracy by reducing gaps connected to the piston 9 and the piston rod 6 with the cylinder 5 by way of a plate 7 two rolling pin 8. An additional advantage is the improved safety of operation of the press with automatic return of the piston rod 6 to the initial position in three springs, mounted on a shaft 6 and on both rolling pin 8, if the alarm power failure.
Press precancerous head, containing the U-shaped frame mounted on its racks adjustable table, a clamp-on upright frame posts, the power cylinder with the axial movement of the rod, the rotation drive precancerous head including a motor and a belt drive, a pumping station hydraulic actuator, characterized in that the power cylinder is rigidly mounted on the crossbar of the U-shaped frame and bears on the end of a spring-loaded rod plate with two spaced parallel to the axis of the rod, and a spring-loaded against the frame with rolling pin, pulley belt transmission of the rotational drive installed in the enclosure, mounted on the plate so that the driven pulley is placed on the spindle coaxially to the piston rod of the hydraulic cylinder, and the drive pulley is on the same axis as the shaft of the motor, ukreplenija on the cross member of the frame, moreover, the driving pulley and the motor shaft is kinematically connected to the other shaft, on the one hand fixed on a motor shaft, and the other connected by a sliding key with a hole in the reference axis of the driving pulley and the spindle, a driven pulley connected with precancerous head.
FIELD: powder metallurgy, namely equipment and processes for treating materials in chemically active medium at high temperature and pressure values, possibly dissolving of ceramic materials and their structural conversions.
SUBSTANCE: isostatic apparatus includes fluid-tight container connected with unit for gas supply. Induction heater and working chamber with open upper end are arranged in said container. Working chamber is in the form of vessel with doubled walls and bottom between them. Isostatic apparatus is provided with heat-insulation chamber whose wall is arranged in interval between walls of vessel. Ceramic members are removed out of metallic articles due to heating ceramic members in heated pressurized alkali solution.
EFFECT: enlarged operational temperature range of isostatic apparatus, intensified process of leaching.
6 cl, 7 dwg
FIELD: apparatuses for hydrostatic pressing of powder articles such as tubes.
SUBSTANCE: apparatus includes housing with upper and lower stationary cross pieces, movable crosspiece arranged between stationary ones. Central rod is rigidly joined with piston of hydraulic cylinder for moving it and it is secured to movable crosspiece. Over movable crosspiece pressing chamber with upper and lower plugs having central through openings is arranged. Upper plug is forced to chamber by means of screw turned-on to upper crosspiece. Lower plug and cylinder for moving central rod are rigidly mounted on movable crosspiece in such a way that central rod may move in opening of lower plug.
EFFECT: enhanced quality of pressed blanks, lowered loss of material, improved operational reliability and increased useful life period of central rod.
2 cl, 2 dwg
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.