CN1528557A

CN1528557A - Internal compression assembling machine

Info

Publication number: CN1528557A
Application number: CNA031326358A
Authority: CN
Inventors: 苑世剑; 刘钢
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2003-09-26
Filing date: 2003-09-26
Publication date: 2004-09-15
Anticipated expiration: 2023-09-26
Also published as: CN100375661C

Abstract

The invention is an internal pressure assembler, relating to an assembler to assemble many units on a middle pipe fitting to make shaft parts. It includes hydraulic device, top beam, bottom beam, column, active beam installed with top mould, bottom mould and also two lateral hydraulic cylinders, horizontal convex moulds, high pressure source and top and bottom backing plates, where there is a liquid charging hole made on one of the horizontal convex moulds, the liquid charging hole is connected with the high source through pipe, the top and bottom backing plates are installed on the active beam and bottom beam, respectively, when the top and bottom moulds close, two lateral hydraulic cylinders and the top and bottom backing plate form a close space. It has high working efficiency and good assembling quality.

Description

Press assembly machine in a kind of

Technical field: the present invention relates to a kind of interior assembly machine of pressing, particularly a plurality of unit are assemblied in the assembly machine of making axial workpiece on the middle pipe fitting.

Background technology: in industry, for porose cell parts is sleeved on the hollow pipe fitting, often need to adopt hot charge practice or mechanical connection method etc., external component formation interference fit links together in promptly making by expanding with heat and contract with cold, and perhaps realizes connecting by various keys or pin.These method complex process, efficient are lower.In order to address the above problem, development has risen and has press-fited the technology of joining in a kind of on the basis of making the combined hollow camshaft in recent years, promptly pass to highly pressurised liquid in hollow pipe fitting inside to be assembled, make pipe fitting that plastic deformation take place earlier, be assembled to element generation certain elastic deformation on the pipe fitting until need, thereby the interference fit realizing after the unloading between the two forms a fixed connection.But need in the assembling process in advance a plurality of element housings (prepackage) on the pipe fitting of center is placed on and carries out topping up, supercharging in the mould, this pre-process of assembling cycle is longer.

Summary of the invention: the purpose of this invention is to provide a kind of interior pressure assembly machine of special use, press assembly machine can utilize highly pressurised liquid assembling hollow structural members in this kind, particularly a plurality of unit are assemblied on the middle pipe fitting and make axial workpiece.Press assembly machine to comprise hydraulic means 1 in of the present invention, entablature 2, sill 13, be arranged on the column 3 between entablature 2 and the sill 13, be sleeved on the moved cross beam 4 that can slide up and down and be equipped with patrix 6 on the column 3 along column 3, be arranged on the counterdie 10 of sill 13 tops, hydraulic means 1 is installed in the top of entablature 2, moved cross beam 4 is connected with the piston rod of hydraulic means 1, it also includes two side hydraulic cylinders 7 that are arranged on counterdie 10 left and right sides, be installed in two horizontal punch 16 on side hydraulic cylinder 7 piston rods respectively, and high-voltage power supply 15, upper padding plate 5 and lower bolster 11, have topping up hole 17 on the horizontal punch 16 therein, topping up hole 17 is connected with high-voltage power supply 15 through pipe, upper padding plate 5 is installed on the moved cross beam 4, lower bolster 11 is installed on the sill 13, when patrix 6 and counterdie 10 matched moulds, two side hydraulic cylinders 7, between upper padding plate 5 and the lower bolster 11 workpiece is surrounded the space of a sealing.The present invention can realize the sealing at steel pipe two ends, assembly center to the piston motion of hydraulic cylinder by left and right side, be separately installed with shift cylinder in the travelling table both sides, realize the forward and backward displacement of workbench and counterdie, make the two cover counterdies can alternation, one group of liftout tank respectively is installed in that workbench is forward and backward, alternately finishes workpiece and eject.By upper and lower backing plate transmission with bear the horizontal thrust that hydraulic cylinder piston work forms the time, do not need other girt, and the horizontal applied force on the two-cylinder piston cancels out each other, so less demanding to the bonding strength between backing plate and the crossbeam.Adopt shift cylinder to make two cover counterdies and two cover liftout tank alternations, can guarantee higher efficiency of assembling.Press-fit in of the present invention and join facility high efficiency, advantage that assembly quality is good are arranged.The production that it is suitable for finishing combination type hollow class part efficiently and press-fits accessory in other.

Description of drawings: Fig. 1 is a structural representation of the present invention, and Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the structural representation of the specific embodiment, and Fig. 4 is the A-A cutaway view of Fig. 3.

The specific embodiment: the interior pressure assembly machine of present embodiment can be based on the general hydraulic press of three beam four-column types, its agent structure comprises hydraulic means 1, entablature 2, column 3, moved cross beam 4 and sill 13, utilizes this general hydraulic press that the mold clamping force of mould is provided.On the workbench above its sill 13, lower bolster 11 is installed, two side hydraulic cylinders 7 about fixing on it; At moved cross beam 4 lower surfaces upper padding plate 5 is installed, patrix 6 is installed under it, and the position corresponding to side hydraulic cylinder 7 upper limbs has square groove 5-1 in upper padding plate 5 both sides, can fasten the upper limb of side hydraulic cylinder 7 in matched moulds, form horizontal seal force system; Guiding backing plate 9 is installed above lower bolster 11, travelling table 8 is installed on it, two cover counterdies 10 are installed on travelling table 8.In travelling table 8 both sides two cover horizontal shift oil cylinders 14 are installed, can be made the transposition of travelling table 8 front and back.One group of liftout tank 12 is respectively installed in rear and front end at guiding backing plate 9, makes workpiece in the counterdie can pre-install (ejecting) position at former and later two and realizes ejecting.High-voltage power supply 15 cooperates the motion of entablature 2 and the motion of side hydraulic cylinder 7, middle pipe orifice to assembly before entablature 2 is finished mould assembling action, side hydraulic cylinder 7 to finish the sealing action carries out topping up, and supercharging in side hydraulic cylinder 7 is finished sealing action back centering pipe, realize assembling.In use, the die holder moving guide rail is housed on the vertical pressure machine worktable, places one to move on the die holder with a determining deviation two cover counterdies, when wherein a cover counterdie was in the operating position at forcing press center, another set of counterdie was in part and ejects (prepackage) position.Element housing earlier that a cover is to be assembled is on middle steel pipe, prepackage location in counterdie, the counterdie that utilizes the horizontal shift oil cylinder will finish prepackage moves into operating position (this moment, another set of counterdie moved on to the pre-installed position of forcing press opposite side with mobile die holder), and utilize vertical press to carry out locked mode, promote horizontal punch to middle pipe two ends by two side hydraulic cylinders then, and inject liquid in the Xiang Zhongguan fast and discharge gas and implement sealing, in middle pipe, inject highly pressurised liquid by high-voltage power supply again, make pipe that permanent plastic expansion take place under controlled pressure, and recoverable elastic expansion takes place in each element that makes on it to be overlapped, stop supercharging then, the horizontal punch in both sides is return, pressure in laying down in the pipe, each outer member just and between the middle pipe achieves a fixed connection.Then, the forcing press die sinking, counterdie transposition, the workpiece that assembling is finished moves on to counterdie and ejects (prepackage) position, and another set of package is with another set of counterdie immigration operating position, the assembling of following set of parts simultaneously.At this moment, the counterdie of having finished assembling is parked in and ejects the position, ejects oil cylinder work, ejects assembling the part of finishing.

Claims

1, press assembly machine in a kind of, it comprises hydraulic means (1), entablature (2), sill (13), be arranged on the column (3) between entablature (2) and the sill (13), be sleeved on the moved cross beam (4) that can slide up and down and be equipped with patrix (6) on the column (3) along column (3), be arranged on the counterdie (10) of sill (13) top, hydraulic means (1) is installed in the top of entablature (2), moved cross beam (4) is connected with the piston rod of hydraulic means (1), it is characterized in that it also includes two the side hydraulic cylinders (7) that are arranged on counterdie (10) left and right sides, be installed in the horizontal punch (16) on two side hydraulic cylinders (7) piston rod respectively, and high-voltage power supply (15), upper padding plate (5) and lower bolster (11), have topping up hole (17) on the horizontal punch (16) therein, topping up hole (17) is connected with high-voltage power supply (15) through pipe, upper padding plate (5) is installed on the moved cross beam (4), lower bolster (11) is installed on the sill (13), when patrix (6) and counterdie (10) matched moulds, two side hydraulic cylinders (7), between upper padding plate (5) and the lower bolster (11) workpiece is surrounded the space of a sealing.

2, a kind of interior assembly machine of pressing according to claim 1 is characterized in that the position corresponding to side hydraulic cylinder (7) upper limb has square groove (5-1) in upper padding plate (5) both sides.

3, a kind of interior assembly machine of pressing according to claim 1 is characterized in that in lower bolster (11) top guiding backing plate (9) being installed, and travelling table (8) is installed on it, at travelling table (8) two cover counterdies (10) is installed upward.

4, a kind of interior assembly machine of pressing according to claim 3 is characterized in that installing two in travelling table (8) both sides overlaps horizontal shift oil cylinders (14).

5, a kind of interior assembly machine of pressing according to claim 3 is characterized in that in the rear and front end of guiding backing plate (9) one group of liftout tank (12) being installed respectively.