CN209647331U - Thin-wall metal pipe impacts hydraulic compound molding device - Google Patents

Abstract

The utility model discloses a kind of thin-wall metal pipes to impact hydraulic compound molding device, include the upper table of press machine and lower table and sets liquid container and feed unit, feed unit includes cylinder barrel, piston rod and seal plug, it sets and lower mold is installed in liquid container, it is intermediate below upper table that upper mold is installed, feed unit is mounted on the side opening for setting the two sides of liquid container, upper mold two sides are equipped with the interior angled-lift splits and outer inclined sliding block for being mounted on upper table both ends, interior angled-lift splits are located at the inside of the outer inclined sliding block, and interior oblique cunning is located above cylinder barrel and matches the horizontal movement to realize cylinder barrel with the boss on cylinder barrel, outer inclined sliding block is located at the top of piston rod and cooperates the horizontal movement to realize piston rod with piston rod.The utility model is not necessarily to dedicated interior pressure source, and forming efficiency is high, it can be achieved that situations such as uniformly shaping, effectively avoiding pliable thin-wall tube, flattening, rupture.

Description

Thin-wall metal pipe impacts hydraulic compound molding device

Technical field

The utility model relates to thin-wall metal pipe forming technique field more particularly to a kind of impact of thin-wall metal pipe are hydraulic multiple Close forming device.

Background technique

Thin-wall metal pipe hydraulic expanding-forming is a kind of to make metal pipe material that plastic deformation occur by interior pressure, be bonded with mold Forming technique.Thin-wall metal pipe hydraulic expanding-forming technology have simple process, process is few, stock utilization is high, detail rigidity is high, again Light advantage is measured, has obtained more and more extensive application in industries such as automobile, space flight, aviation, household electrical appliances and buildings.

In the prior art, the most commonly used is the dedicated interior pressure sources of use, and thin-wall metal pipe inside to be given to provide high pressure, so that Bulging in managing, then impact hydraulic expanding-forming is realized in such a way that the upper/lower die of press machine molds punching press.Such as patent ZL201320867723.2 is exactly in this way.But this mode needs to be equipped with dedicated interior pressure source, by equipment, At high cost, the disadvantages of adapter tube is complicated, forming is slow, low efficiency.The patent CN104226776B of applicant's earlier application uses another A kind of mode of axial feed feed supplement, this method are not necessarily to dedicated interior pressure source, and simple and easy to do, hydraulic expanding-forming is high-efficient.It is rushing The automatic axial feed supplement, it can be achieved that thin-wall metal pipe is hit in Bulging Process, the local reduction of thin-wall metal pipe is prevented.To shape not The metal thin-wall tube shape of similar shape, only needing to change upper/lower die can be realized, and easy to operate, structure is simple, at low cost.But The mode control accuracy requirement of axial feed feed supplement is high, shaping rate is lower, thin-wall tube is pliable, flattens, ruptures etc. easily occurs Situation.

Utility model content

Against the above deficiency, the purpose of the utility model is to provide a kind of impacts of thin-wall metal pipe hydraulic to be combined into shape dress It sets.

In order to achieve the above objectives, the utility model adopts the following technical solution:

Thin-wall metal pipe impacts hydraulic compound molding device, includes the upper table and lower table of press machine；It is described It is equipped with above lower table and sets liquid container, described set is equipped with lower mold in liquid container；Intermediate installation below the upper table There is upper mold, the upper mold is located at right above the lower mold；The two sides for setting liquid container are offered to install feeding The side opening of unit, the feed unit include cylinder barrel, piston rod and seal plug, and the cylinder barrel, which is movably arranged on, described sets liquid On the side opening of container, the inner end of the cylinder barrel is located at the inside and outside end of liquid container of setting and sets outside liquid container positioned at described, the piston Bar part is located in the cylinder barrel, and the outer end of the piston rod is inclined-plane, and the inner end of the piston rod is equipped with the first sealing Circle, the outer end of the cylinder barrel are equipped with boss, and the lateral surface of the boss is inclined-plane, and the seal plug is mounted on the cylinder barrel Inner end on, the seal plug is equipped with the fluid injection of the outer end of the inside and the seal plug that are connected to the cylinder barrel Hole；The upper mold two sides are equipped with the interior angled-lift splits and outer inclined sliding block for being mounted on the upper table both ends, the interior oblique cunning Block is located at the inside of the outer inclined sliding block, and the bottom of the interior angled-lift splits is higher than the bottom of the outer inclined sliding block；It is described interior oblique Sliding block is located at the top of the cylinder barrel, the bottom of the interior angled-lift splits be equipped with first tilt again vertical structure and with the boss Inclined-plane cooperates to the interior angled-lift splits when upper table downlink of press machine and first squeezes the boss to move horizontally again Keep boss stationary, the bottom of the interior angled-lift splits is equipped with the notch that the cylinder barrel can be allowed to pass through；The outer inclined sliding block Positioned at the piston rod top and cooperate to the upper table downlink when institute in press machine with the inclined-plane of the piston rod The outer inclined sliding block extruding piston rod is stated to move horizontally.

A kind of improvement of hydraulic compound molding device is impacted as above-mentioned thin-wall metal pipe, on the side opening for setting liquid container Also it is fixed with sleeve, the sleeve is horizontally disposed, and the cylinder barrel is coaxially set in the sleeve, and the is equipped in the sleeve Two sealing rings.

A kind of improvement of hydraulic compound molding device, the outer end face of the seal plug are impacted as above-mentioned thin-wall metal pipe It is equipped with the annular groove to allow metal thin-wall tube end to enter, is equipped with third sealing ring in the annular groove.

Impact a kind of improvement of hydraulic compound molding device as above-mentioned thin-wall metal pipe, the seal plug be it is preceding it is small after Big structure.

A kind of improvement that hydraulic compound molding device is impacted as above-mentioned thin-wall metal pipe, between the cylinder barrel and piston rod Equipped with linear guiding mechanism, the linear guiding mechanism makes that axial straight line fortune can only be carried out between the cylinder barrel and piston rod It is dynamic.

A kind of improvement of hydraulic compound molding device is impacted as above-mentioned thin-wall metal pipe, the linear guiding mechanism includes Have first sliding groove on the outer surface set on the piston rod, set on the cylinder barrel inner surface and with the first sliding groove position Opposite second sliding slot and multiple spherical rolling bodies in the first sliding groove and second sliding slot.

A kind of improvement of hydraulic compound molding device, the bottom at the upper table both ends are impacted as above-mentioned thin-wall metal pipe The top surface of sliding slot of the face equipped with longitudinal direction, the interior angled-lift splits and outer inclined sliding block is equipped with the sliding block to match with the sliding slot, institute Interior angled-lift splits and outer inclined sliding block is stated to be fixedly mounted on the sliding slot by the sliding block.

A kind of improvement of hydraulic compound molding device, the side at the upper table both ends are impacted as above-mentioned thin-wall metal pipe Face is equipped with graduated scale at the position for corresponding to the sliding slot.

Compared with prior art, the utility model has the beneficial effects that

1, it is not necessarily to dedicated interior pressure source, equipment is simple, and easy for installation, forming efficiency is high；

2, preform can be achieved before impacting bulging, and be able to carry out lasting hydraulic booster in impact bulging, protect Demonstrate,prove good forming；

3, it is not necessarily to axial feed feed supplement, can effectively avoid because thin-wall tube brought by lasting axial feed feed supplement is pliable Situations such as folding, flattening, rupture；

4, pipe end sealing effect is good when shaping, and ensure that thin-wall tube internal pressure, helps to impact bulging.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the left view schematic diagram of interior angled-lift splits；

Fig. 3 is the longitudinal cross-section schematic diagram of feed unit；

Fig. 4 is the cooperation schematic diagram of feed unit and sleeve；

Fig. 5 is the implementation diagram of this preferred embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1, Fig. 2 and Fig. 3 are please referred to, it is hydraulic multiple that the utility model preferred embodiment provides a kind of thin-wall metal pipe impact Forming device is closed, includes the upper table 6 of press machine and lower table 7 and sets liquid container 1 and feed unit.

With continued reference to Fig. 1, sets liquid container 1 and be fixedly mounted on above lower table 7, set and lower mold is installed in liquid container 1 4.6 lower section of upper table is intermediate to be equipped with upper mold 5, and upper mold 5 is located at right above lower mold 4, under the upper table 6 of press machine 5 downlink of upper mold is driven when row and is molded with lower mold 4, to realize punching press.

For the ease of injection molding liquid, sets and be provided with inlet opening 24 and fluid hole 25 on 1 side of liquid container, 24 water of inlet opening Flat height is higher than 25 level height of fluid hole, and Optimum Matching is equipped with stopple or is connected with valvular pipeline on inlet opening 24 (not shown), Optimum Matching is equipped with stopple or is connected with valvular pipeline (not shown) on fluid hole 25, When needing fluid injection, the stopple or valve of inlet opening 24 are opened, forming liquid enters from inlet opening 24, at this time 25 envelope of fluid hole It closes, it is that fluid injection is completed that liquid to be formed, which keeps the state for exceeding thin-wall tube,；When needing drain, open fluid hole 25 stopple or Person's valve, forming liquid are gone out from fluid hole 25.One of the preferred lightweight machine oil of forming liquid, emulsion, saponified oil, water.

Fig. 1 and Fig. 3 are please referred to, the two sides for setting liquid container 1 offer side opening to install feed unit, and feed unit is Two, each feed unit includes cylinder barrel 8, piston rod 9 and seal plug 10.Cylinder barrel 8 is laterally disposed, is movably arranged on and sets liquid On the side opening of container 1, the inner end of cylinder barrel 8, which is located to set the inside and outside end of liquid container 1 and be located at, is set outside liquid container 1.9 part of piston rod is located at In cylinder barrel 8, the outer end of piston rod 9 is inclined-plane, and the inner end of piston rod 9 is equipped with the first sealing ring 11, the first sealing ring 11 with The inner surface of cylinder barrel 8 matches to realize the sealing inside 9 inner end of piston rod and cylinder barrel 8 to avoid leakage.The outer end of cylinder barrel 8 The periphery in portion is equipped with boss 12, and the lateral surface (referring to far from the side for setting liquid container 1) of boss 12 is inclined-plane.Seal plug 10 is pacified On the inner end of cylinder barrel 8, seal plug 10 is equipped with the fluid injection of the inside of connection cylinder barrel 8 and the outer end of seal plug 10 Hole 13.Seal plug 10 and cylinder barrel 8 are detachable mounting means, and detachable mounting means is preferably threadedly coupled, specially cylinder The end of cylinder 8 is equipped with external screw thread, and seal plug 10 is equipped with matched internal screw thread, seal plug 10 threadedly may be implemented With the fixation of cylinder barrel 8, disassembly separation can be carried out to it when not in use.

Fig. 1 is please referred to, 4 two sides of upper mold are equipped with the interior angled-lift splits 2 and outer inclined sliding block 3 for being mounted on 6 both ends of upper table, Interior angled-lift splits 2 are located at the inside of outer inclined sliding block 3, and the bottom of interior angled-lift splits 2 is higher than the bottom of outer inclined sliding block 3.

Interior angled-lift splits 2 are located at the top of cylinder barrel 8, the bottom of interior angled-lift splits 2 be equipped with first tilt again vertical structure and with it is convex The inclined-plane of platform 12 cooperates to the interior angled-lift splits 2 when 6 downlink of upper table of press machine and first squeezes boss 12 to move horizontally Keep boss 12 stationary again, the bottom of interior angled-lift splits 2 is equipped with the notch 14(that cylinder barrel 8 can be allowed to pass through referring to figure 2.).Outside Angled-lift splits 3 are located at the top of piston rod 9 and cooperate to when 6 downlink of upper table of press machine with the inclined-plane of piston rod 9 3 extrusion piston bar 9 of outer inclined sliding block moves horizontally.

Referring to figure 5., specific, the full and accurate implementation steps of one kind of the utility model preferred embodiment are as follows: by metal foil Wall pipe 26 is placed across on lower mold 4, toward injection molding liquid in liquid container 1 is set, until forming liquid covers thin-wall metal pipe 26 And forming liquid liquid level is kept to exceed thin-wall metal pipe 26, it is filled into inside 26 inside of thin-wall metal pipe and cylinder barrel 8 at this time Shape liquid (forming liquid is entered inside cylinder barrel 8 by liquid injection hole 13)；Press machine operation, drives 6 downlink of upper table, interior at this time tiltedly sliding The contact of incline plane of boss 12 on 2 downlink of block, the bottom bevels of interior angled-lift splits 2 and cylinder barrel 8, and drive boss 12 to do to setting liquid and hold The horizontal movement in 1 direction of device, entire feed unit does the horizontal movement to 26 direction of thin-wall metal pipe (in interior angled-lift splits 2 at this time During driving boss 12, cylinder barrel 8 is located in the notch 14 of interior 2 bottom of angled-lift splits), until boss 12 leaves interior angled-lift splits 2 Bottom bevel reach in angled-lift splits 2 bottom vertical portion, the seal plug 10 on feed unit resists metal thin-wall at this time Sealing is simultaneously realized in the end of pipe 26, and feed unit is no longer moved toward 26 direction of thin-wall metal pipe；Upper table 6 continues traveling downwardly, The contact of incline plane of the outer end of the bottom bevel and piston rod 9 of the outer inclined sliding block 3 of continuous downlink at this time, and squeeze the piston rod 9 move horizontally, and drive piston rod 9 toward 8 internal motion of cylinder barrel, and squeeze the injection thin-wall metal pipe of the forming liquid inside cylinder barrel 8 With to providing pressure inside thin-wall metal pipe 26 inside 26；6 downlink of upper table drives 5 downlink of upper mold, to thin-wall metal pipe 26 are impacted, and until molding completely, complete to impact hydraulic combined shaping.It is worth noting that, adjustable outer inclined sliding block 3 with The height relationships of upper mold 5, to realize the sequence of the fluid injection and the molding that adjust feed unit.If this preferred embodiment is first Fluid injection is carried out with to providing certain pressure inside thin-wall metal pipe 26 by feed unit, then is molded, and in other realities It applies in example, is also possible to feed unit and carries out fluid injection and molding while carrying out.

Piston rod 9 toward 8 internal motion of cylinder barrel and squeeze the forming liquid inside cylinder barrel 8 injection thin-wall metal pipe inside with to Pressure is provided inside thin-wall metal pipe, and during upper/lower die molding, even if seal plug 10 is by liquid in pipe Greater impact power, but since the presence of interior angled-lift splits 2, cylinder barrel 8 and seal plug 10 can not also move outward and cause to seal Plug 10 and metal thin-wall pipe end section from and there is the case where substantially leakage, cause insufficient pressure forming bad.It is furthermore preferred that Referring to figure 3., the outer end face of seal plug 10 is equipped with the annular groove 17 to allow metal thin-wall tube end to enter, annular groove 17 It is interior to be equipped with third sealing ring 18.When implementation, in the annular groove 17 that metal thin-wall tube end enters, and third sealing ring 18 is resisted, The sealing of thin-walled tube end is completed at this time.And in the fluid injection inside thin-wall tube and/or molding punching course, metal thin-wall pipe end Portion has the trend to become larger, therefore, thin-walled tube end that conventional seal plug possibly can not be blocked completely after becoming larger and occur Big leakage.And after being provided with annular groove 17 and third sealing ring 18, even if metal thin-wall tube end becomes larger, also still act on On annular groove 17 and third sealing ring 18, under the action of annular groove 17 and third sealing ring 18, still have good close Effect is sealed, to guarantee good forming.

Fig. 1 and Fig. 4 are please referred to, sets and is also fixed with sleeve 15 on the side opening of liquid container 1, sleeve 15 is horizontally disposed, cylinder barrel 8 It is coaxially set in sleeve 15, the second sealing ring 16 is equipped in sleeve 15.During interior angled-lift splits 2 and outer inclined sliding block 3 push, It drives boss 12 and piston rod 9 to move horizontally respectively, but during driving, and also has a downward component, thus So that feed unit has the tendency that one diagonally downward, so as to cause seal plug 10 and thin-wall tube end part aligning inaccurate It really, can not be to the necessary interior pressure of offer inside thin-wall metal pipe.Fixed sleeve 15 is set, and sleeve 15 is horizontally disposed with and and cylinder Cylinder 8 is coaxial, therefore can keep 8 horizontal movement of cylinder barrel without tilting well, is conducive to seal plug 10 and thin-wall tube The alignment of end.Second sealing ring 16 be it is multiple, can both guarantee levelness, good sealing function can also be played, as far as possible Forming liquid is avoided to flow out from setting in liquid container 1.

Seal plug 10 is pre-small post-large structure, can preferably be applicable in different inner diameters.

Linear guiding mechanism is equipped between cylinder barrel 8 and piston rod 9, linear guiding mechanism makes between cylinder barrel 8 and piston rod 9 Axial linear motion can only be carried out, to guarantee piston rod 9 in the smooth movement of cylinder body 8.Linear guiding mechanism includes to be set to First sliding groove 19 on the outer surface of piston rod 9, set on the inner surface of cylinder barrel 8 and opposite with 29 position of first sliding groove second sliding Slot 20 and multiple spherical rolling bodies 21 in first sliding groove 19 and second sliding slot 20.By the way that linear guiding mechanism is arranged, So that moving horizontally for piston rod 9 is more smoothly, smooth.

The bottom surface at 6 both ends of upper table is equipped with longitudinal sliding slot, the top surface of interior angled-lift splits 2 and outer inclined sliding block 3 be equipped with The sliding block 22 that sliding slot matches, interior angled-lift splits 2 and outer inclined sliding block 3 are fixedly mounted on the chute by sliding block 22.Sliding block 22 passes through Bolt is fixed on the chute, and the position of sliding block 22 can be adjusted before implementation, to realize internal angled-lift splits 2 and outer inclined sliding block 3 Position adjustment passes through tune so as to be suitable for the thin-wall metal pipe of different length and realize different 9 amount of movements of piston rod The amount of movement of whole piston rod 9 may be implemented to adjust the amount to injection molding liquid inside thin-wall metal pipe to realize overpressure tune Section.The side at 6 both ends of upper table is equipped with graduated scale 23 at the position for corresponding to sliding slot, when implementation, can according to graduated scale come 22 position of adjusting slider, to fast implement the position adjustment of internal angled-lift splits 2 and outer inclined sliding block 3.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with described Subject to scope of protection of the claims.

Claims (8)

1. It include the upper table (6) and lower table (7) of press machine 1. thin-wall metal pipe impacts hydraulic compound molding device； The lower table (7) is equipped with sets liquid container (1) above, and described set in liquid container (1) is equipped with lower mold (4)；The upper work Make to be equipped with upper mold (5) among below platform (6), the upper mold (5) is located at right above the lower mold (4)；Its feature exists In:

   The two sides for setting liquid container (1) offer the side opening to install feed unit, and the feed unit includes cylinder barrel (8), piston rod (9) and seal plug (10), the cylinder barrel (8) be movably arranged on it is described set on the side opening of liquid container (1), it is described The inner end of cylinder barrel (8) is located at liquid container (1) the inside and outside end of setting and sets liquid container (1) outside described in, piston rod (9) portion For quartile in the cylinder barrel (8), the outer end of the piston rod (9) is inclined-plane, and the inner end of the piston rod (9) is equipped with first The outer end of sealing ring (11), the cylinder barrel (8) is equipped with boss (12), and the lateral surface of the boss (12) is inclined-plane, described close Block head (10) is mounted on the inner end of the cylinder barrel (8), and the seal plug (10), which is equipped with, is connected to the interior of the cylinder barrel (8) The liquid injection hole (13) in portion and the outer end of the seal plug (10)；

   Upper mold (5) two sides are equipped with the interior angled-lift splits (2) and outer inclined sliding block for being mounted on the upper table (6) both ends (3), the interior angled-lift splits (2) are located at the inside of the outer inclined sliding block (3), and the bottom of the interior angled-lift splits (2) is higher than described The bottom of outer inclined sliding block (3)；

   The interior angled-lift splits (2) are located at the top of the cylinder barrel (8), and the bottom of the interior angled-lift splits (2) is equipped with first to tilt erects again Straight structure simultaneously cooperates to interior oblique cunning when upper table (6) downlink of press machine with the inclined-plane of the boss (12) Block (2) first squeezes the boss (12) and moves horizontally keeps boss (12) stationary again, the bottom of the interior angled-lift splits (2) Equipped with the notch (14) that the cylinder barrel (8) can be allowed to pass through；The outer inclined sliding block (3) is located at the top of the piston rod (9) simultaneously The outer inclined sliding block (3) when upper table (6) downlink of press machine is cooperated to the inclined-plane of the piston rod (9) to squeeze The piston rod (9) moves horizontally.
2. 2. thin-wall metal pipe according to claim 1 impacts hydraulic compound molding device, it is characterised in that: described to set liquid appearance It is also fixed on the side opening of device (1) sleeve (15), the sleeve (15) is horizontally disposed, and the cylinder barrel (8) is coaxially set in institute It states in sleeve (15), is equipped with the second sealing ring (16) in the sleeve (15).
3. 3. thin-wall metal pipe according to claim 1 impacts hydraulic compound molding device, it is characterised in that: the seal plug The outer end face of head (10) is equipped with the annular groove (17) to allow metal thin-wall tube end to enter, and is equipped in the annular groove (17) Third sealing ring (18).
4. 4. thin-wall metal pipe according to any one of claims 1 to 3 impacts hydraulic compound molding device, it is characterised in that: The seal plug (10) is pre-small post-large structure.
5. 5. thin-wall metal pipe according to claim 1 impacts hydraulic compound molding device, it is characterised in that: the cylinder barrel (8) linear guiding mechanism is equipped between piston rod (9), the linear guiding mechanism makes the cylinder barrel (8) and piston rod (9) Between can only carry out axial linear motion.
6. 6. thin-wall metal pipe according to claim 5 impacts hydraulic compound molding device, it is characterised in that: the straight line is led It include first sliding groove (19) on the outer surface of the piston rod (9), the inner surface for being set to the cylinder barrel (8) to mechanism And the second sliding slot (20) opposite with the first sliding groove (19) position and it is set to the first sliding groove (19) and second sliding slot (20) multiple spherical rolling bodies (21) in.
7. 7. thin-wall metal pipe according to claim 1 impacts hydraulic compound molding device, it is characterised in that: the upper work The bottom surface at platform (6) both ends is equipped with longitudinal sliding slot, the top surface of the interior angled-lift splits (2) and outer inclined sliding block (3) be equipped with it is described The sliding block (22) that sliding slot matches, the interior angled-lift splits (2) and outer inclined sliding block (3) are fixedly mounted on institute by the sliding block (22) It states on sliding slot.
8. 8. thin-wall metal pipe according to claim 7 impacts hydraulic compound molding device, it is characterised in that: the upper work The side at platform (6) both ends is equipped with graduated scale (23) at the position for corresponding to the sliding slot.