Rare earth magnesium alloy extrusion die
Technical Field
The utility model belongs to the technical field of the mould technique and specifically relates to a tombarthite magnesium alloy extrusion die is related to.
Background
The extrusion die is a press process in which a blank placed in a female die is pressed by a punch or a male die to cause plastic flow, thereby obtaining a product corresponding to the shape of a hole or a male and female die of the die.
Rare earth magnesium alloy is the lightest metal structure material among the engineering application, have density low, specific strength is high, specific stiffness is high, shock attenuation nature is high, easy processing, advantages such as easy recovery, there is huge application market in fields such as space flight, the military project, electronic communication, transportation, some rare earth magnesium alloys can use extrusion die extrusion in the course of working, current extrusion die is in the use, powerful pressure that produces during the extrusion leads to the rare earth magnesium alloy to adhere in the recess of die holder easily, lead to taking out inconveniently, current mode of taking out is usually through the manpower directly taking out, not only be difficult to take out, work efficiency is low, and cause the finished product to damage easily at the in-process of taking out, to the problem, the utility model provides a rare earth magnesium alloy extrusion die.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tombarthite magnesium alloy extrusion die, this kind of tombarthite magnesium alloy extrusion die, be convenient for ejecting it fast after the material shaping, prevent that the finished product adhesion from in the die holder inslot, and do benefit to and improve work efficiency to can effectively avoid pushing up off-the-shelf in-process apical force too big, lead to the finished product to break away from the device completely and cause unnecessary danger and loss, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a rare earth magnesium alloy extrusion die comprises a base, wherein supporting rods are welded at four corners above the base, a top plate is welded above the supporting rods, an electric telescopic rod is fixed at the middle part below the top plate, a movable plate is fixed below the electric telescopic rod, a first sliding groove is formed in one corner opposite to the supporting rods, a first convex die seat is fixed below the movable plate, a concave die seat corresponding to the convex die seat is fixed above the base, a die groove is formed in the middle part above the concave die seat, an inner groove located below the die groove is formed in the base, a moving plate is arranged in the inner groove, L-shaped blocks are fixed on the left side and the right side of the inner wall of the inner groove through screws, a second sliding groove is formed in one side opposite to each L-shaped block, sliding blocks are fixed at the left end and the right end of the moving plate and are slidably connected with the second sliding groove, and a top block penetrating through the concave die seat and extending, a plurality of limiting grooves are uniformly formed at the bottom of the inner wall of the inner groove, limiting columns fixed with the moving plate are arranged in the limiting grooves, the outer wall of the limiting column is sleeved with a first spring which is positioned between the lower part of the moving plate and the bottom of the inner wall of the inner groove, support columns are fixed on the left side and the right side above the movable plate, the support columns penetrate through the die holder, movable columns are arranged above the support columns, a bottom groove is arranged below the movable column, a connecting column extending out of the bottom groove is movably connected in the bottom groove, the connecting column is fixed with the supporting column, a second spring is fixed between the top of the connecting column and the bottom of the bottom groove, a side groove positioned above the bottom groove is arranged at one side opposite to the movable column, a movable block extending out of the notch of the side groove is arranged in the side groove, the inner end of the movable block is welded with a stop lever, the outer wall of the movable block is sleeved with a third spring, and the third spring is located between the movable column and the stop lever.
Preferably, four corners of the movable plate are respectively located in the four first sliding grooves and are in sliding connection with the first sliding grooves.
Preferably, the L-shaped block consists of a vertical block and a transverse block, and the transverse block is fixed at the bottom of the inner side of the vertical block.
Preferably, the height from the top surface of the top block to the bottom surface of the die cavity is equal to the height from the bottom surface of the moving plate to the top surface of the transverse block.
Preferably, the stop lever comprises a vertical rod and a cross rod, and the cross rod is welded on the upper side of the inner side of the vertical rod.
Preferably, the cross rod is arranged in a downward inclined mode, and the inner end of the cross rod is arc-shaped.
Preferably, the bottom of the die holder is embedded with a rubber pad, and the top surface of the rubber pad is uniformly provided with a plurality of grooves communicated with the limiting groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the movable block is arranged and the side groove is formed, so that the transverse rod is extruded to move outwards when passing through the stop rod in the process that the convex die holder moves up and down, the transverse rod is arranged in a downward inclined mode, the inner end of the transverse rod is arc-shaped, the transverse rod is favorably extruded by the convex die holder to move outwards, the movable block is driven to move towards the side groove in the moving process of the stop rod, meanwhile, the three extrusion springs shrink, the stop rod is prevented from blocking the convex die holder to move, and when the convex die holder moves out between the two stop rods, the compressed three springs rebound to push the stop rod to drive the movable block to return to the initial position;
after extrusion forming, after pressure is lost above a formed material, the compressed first spring rebounds to move the jacking block to jack the formed material through the moving plate, the stop rod can block the jacked formed material, the formed material is damped through two pairs of springs, the phenomenon that the formed material and the stop rod are excessively large in impact force and unnecessary damage is caused is avoided, the formed material is jacked into a die cavity through rebounding of the stretched second spring, and danger and loss caused by the fact that the formed material is jacked out of the die cavity are avoided;
the limiting groove is formed, when the limiting column moves up and down, the limiting groove can limit the limiting column to enable the limiting column to move horizontally, so that the moving direction of the first spring is controlled, the first spring is prevented from being damaged due to extrusion deformation, and the first springs are arranged, so that the force of a material which is subjected to top forming on the top block is increased through the moving plate, and the material is favorably ejected;
through setting up the rubber pad, do benefit to and alleviate the impact force that causes after spacing post moves down, avoid spacing post and the inside striking production noise that takes place of mould.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic top view of the cross-sectional structure of the support rod of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 1 according to the present invention;
fig. 4 is an enlarged schematic structural diagram of the support pillar of the present invention.
The labels in the figure are: 1-a base; 2-a support rod; 3-a top plate; 4, an electric telescopic rod; 5-a movable plate; 6, a first sliding chute; 7-a convex die holder; 8-a concave die holder; 9-a die cavity; 10-an inner groove; 11-moving the plate; a 12-L shaped block; 1201-riser block; 1202-horizontal block; 13-chute two; 14-a slide block; 15-a top block; 16-a limiting groove; 17-a limiting column; 18-spring one; 19-a support column; 20-a movable column; 21-bottom groove; 22-connecting column; 23-spring two; 24-side grooves; 25-a movable block; 26-a stop lever; 2601-vertical bar; 2602-a cross-bar; 27-spring three.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Please refer to fig. 1 to 4:
a rare earth magnesium alloy extrusion die comprises a base 1, wherein supporting rods 2 are welded at four corners above the base 1, a top plate 3 is welded above the supporting rods 2, an electric telescopic rod 4 is fixed at the middle part below the top plate 3, a movable plate 5 is fixed below the electric telescopic rod 4, a first sliding groove 6 is formed at one corner opposite to the supporting rods 2, a convex die holder 7 is fixed below the movable plate 5, a concave die holder 8 corresponding to the convex die holder 7 is fixed above the base 1, a die groove 9 is formed in the middle part above the concave die holder 8, an inner groove 10 positioned below the die groove 9 is formed in the base 1, a moving plate 11 is arranged in the inner groove 10, L-shaped blocks 12 are fixed on the left side and the right side of the inner wall of the inner groove 10 through screws, a second sliding groove 13 is formed in one side opposite to the L-shaped blocks 12, sliding blocks 14 are fixed at the left end and the right end of the moving plate 11, the sliding blocks 14 are connected with the second sliding grooves, a plurality of limiting grooves 16 are uniformly formed in the bottom of the inner wall of the inner groove 10, limiting columns 17 fixed with the moving plate 11 are arranged in the limiting grooves 16, first springs 18 are sleeved on the outer walls of the limiting columns 17, the first springs 18 are located between the lower portion of the moving plate 11 and the bottom of the inner wall of the inner groove 10, supporting columns 19 are fixed on the left side and the right side of the upper portion of the moving plate 11, the supporting columns 19 penetrate through the die holder 8, movable columns 20 are arranged above the supporting columns 19, bottom grooves 21 are formed below the movable columns 20, connecting columns 22 extending out of the bottom grooves 21 are movably connected in the bottom grooves 21, the connecting columns 22 are fixed with the supporting columns 19, second springs 23 are fixed between the tops of the connecting columns 22 and the bottoms of the bottom grooves 21, side grooves 24 located above the bottom grooves 21 are formed in one sides, movable blocks 25 extending out of notches of the side grooves 24 are arranged in the side grooves 24, stop rods 26 are welded to the inner ends of the movable blocks 25; the L-shaped block 12 consists of a vertical block 1201 and a horizontal block 1202, and the horizontal block 1202 is fixed at the bottom of the inner side of the vertical block 1201; the stop lever 26 is composed of a vertical rod 2601 and a horizontal rod 2602, and the horizontal rod 2602 is welded with the upper part of the inner side of the vertical rod 2601;
when the material extruding device is used, a material to be extruded is placed above the inner part of the die cavity 9, the movable plate 5 slides downwards in the first sliding groove 6 by starting the electric telescopic rod 4, the movable plate 6 drives the convex die holder 7 to move downwards to extrude the material into the die cavity 9, the material presses the top block 15 downwards to move downwards in the extruding process, the slide block 14 is driven by the moving plate 11 to slide downwards in the second sliding groove 13 in the downwards moving process of the top block 15, the plate 11 drives the limiting column 17 to move downwards and extrude the first spring 18 to shrink, the height from the top surface of the top block 15 to the bottom surface of the die cavity 9 is equal to the height from the bottom surface of the moving plate 11 to the top surface of the cross block 1202, when the material is extruded to be contacted with the bottom surface of the die cavity 9, the moving plate 11 is contacted with the top surface of the cross block 1202, the moving plate 11 cannot continuously move downwards, so that the top surface of the top block 15 is kept horizontal with the bottom surface of the, the machining precision is influenced;
by arranging the movable block 25 and the side groove 24, the cross rod 2602 is extruded to move outwards when passing through the stop bar 26 in the process that the die holder 7 moves up and down, the cross rod 2602 is arranged in a downward inclined manner, the inner end of the cross rod 2602 is arc-shaped, so that the die holder 7 can extrude the cross rod 2602 to move outwards, the stop bar 26 drives the movable block 25 to move towards the side groove 24 in the moving process, meanwhile, the third extrusion spring 27 is contracted, the stop bar 26 is prevented from blocking the movement of the die holder 7, and when the die holder 7 moves out between the two stop bars 26, the compressed third spring 27 rebounds to push the stop bar 26 to drive the movable block 25 to return to the initial position, so that the die holder is;
after extrusion forming, the electric telescopic rod 4 drives the male die holder 7 to move upwards through the movable plate 5, after pressure is lost above a formed material, the compressed first spring 18 rebounds to drive the ejector block 15 to move upwards through the movable plate 11 to jack the formed material, if the material is too small and too light, the ejection force is too large, and the formed material is ejected out of the die cavity 9, the stop rod 26 can block the formed material, the formed material enables the movable block 25 to drive the movable column 20 to move upwards through the stop rod 26, the movable column 20 horizontally moves upwards along the outer wall of the connecting column 22 while stretching the second spring 23, the formed material is damped through the second spring 23, the phenomenon that the impact force of the formed material on the stop rod 26 is too large to cause unnecessary damage is avoided, the stretched second spring 23 rebounds to eject the formed material into the die cavity 9, and the danger and loss caused by the ejection of the formed material out of the die cavity 9 are avoided;
through seting up spacing groove 16, when spacing post 17 reciprocated, spacing groove 16 can be spacing it, make its horizontal migration, thereby control the moving direction of spring 18, avoid spring 18 to be caused the damage by extrusion deformation, set up the rubber pad through the embedding in die cavity 8 bottom, the communicating recess of a plurality of and spacing groove 16 is evenly seted up to the rubber pad top surface, kicking block 15 moves down its top surface and when level with the die cavity 9 tank bottom position, spacing post 17 moves down to the recess tank bottom with the rubber pad contacts, do benefit to the impact force of alleviating the cause after spacing post 17 moves down, avoid spacing post 17 and the inside striking noise that takes place of mould.
It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principles of the present invention should be included within the scope of the present invention.