CN110538922A - progressive die for multiple thinning drawing and reverse drawing - Google Patents
progressive die for multiple thinning drawing and reverse drawing Download PDFInfo
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- CN110538922A CN110538922A CN201910874179.6A CN201910874179A CN110538922A CN 110538922 A CN110538922 A CN 110538922A CN 201910874179 A CN201910874179 A CN 201910874179A CN 110538922 A CN110538922 A CN 110538922A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The application discloses a multi-time ironing and reverse drawing progressive die, which comprises an upper die, a lower die, a common drawing device, an ironing device and a reverse drawing device, wherein the upper die and the lower die are oppositely arranged, and the common drawing device is arranged between the upper die and the lower die and is used for drawing the basic shape of a workpiece; the ironing device is arranged between the upper die and the lower die and is used for reducing and ironing the workpiece which is ironed by the common ironing device; the reverse drawing device is arranged between the upper die and the lower die and is used for drawing the workpiece drawn by the thinning drawing device to the final shape and size of the product. The progressive die overcomes the defects of a single-process die, reduces the moving of semi-finished products in the single-process production process, reduces the processing procedures, lightens the labor intensity of personnel, improves the processing precision, and plays an important role in stabilizing the product quality. Effectively reducing the cost and improving the factory benefit.
Description
Technical Field
the application relates to the technical field of die design, in particular to a progressive die for multiple thinning drawing and reverse drawing.
Background
the progressive die is an advanced die in the stamping production at the present stage, solves many defects of a single-process die, and realizes the effects of combining multiple processes and carrying out automatic production. The produced product has the characteristics of good processing quality, stability and high efficiency, reduces the repeated operation of operators in the first-line production, is the direction of the design and development of the existing mold in China, and plays an extremely important role in the mold industry. For a progressive die product which is formed by changing full machining into multiple times of thinning drawing and reverse drawing, the current process of a client adopts a machining numerical control turning process, needs multiple processes, and has long machining period, low efficiency, low equipment utilization rate and higher price.
disclosure of Invention
the application aims to provide a progressive die for multiple ironing and reverse ironing, which solves the problem that multiple single-process dies are required to be adopted to process tube products subjected to common drawing and multiple ironing in the prior art step by step.
The application discloses a multi-time ironing and reverse drawing progressive die, which comprises an upper die, a lower die, a common drawing device, an ironing device and a reverse drawing device, wherein the upper die and the lower die are oppositely arranged, and the common drawing device is arranged between the upper die and the lower die and is used for drawing the basic shape of a workpiece; the ironing device is arranged between the upper die and the lower die and is used for reducing and ironing the workpiece which is ironed by the common ironing device; the reverse drawing device is arranged between the upper die and the lower die and is used for drawing the workpiece drawn by the thinning drawing device to the final shape and size of the product.
Optionally, the multiple ironing and reverse drawing progressive die comprises an upper die fixing plate, a discharging back plate, a discharging plate, a lower back plate, a lower backing plate and a concave die plate, wherein the upper die fixing plate is arranged between the upper die and the lower die and is connected with the upper die; the discharging back plate is arranged between the upper die fixing plate and the lower die and is abutted against the upper die fixing plate; the discharging plate is arranged between the discharging back plate and the lower die and is connected with the discharging back plate; the lower back plate is arranged between the stripper plate and the lower die and is connected with the lower die; the lower backing plate is arranged between the lower back plate and the stripper plate and is connected with the lower back plate; the concave template is arranged between the lower backing plate and the stripper plate and is connected with the lower backing plate; the common deep drawing device comprises a common deep drawing male die, a common deep drawing female die and a first elastic mechanism, wherein the common deep drawing male die penetrates through the discharging plate, the discharging back plate and the upper die fixing plate and is connected with the upper die; the common deep drawing female die is arranged in the female die plate and corresponds to the common deep drawing male die, and the inner diameter of the common deep drawing female die is larger than the diameter of the top of the common deep drawing male die; the first elastic mechanism penetrates through the concave die plate, the lower backing plate and the lower back plate and is connected with the lower die, and the first elastic mechanism is abutted to the common deep drawing male die and stretches along the direction of the common deep drawing female die.
Optionally, the ironing structure comprises an ironing male die, an ironing female die and a second elastic mechanism; the thinning and drawing male die penetrates through the discharging plate, the discharging back plate and the upper die fixing plate and is connected with the upper die; the thinning and drawing female die is arranged in the female die plate and corresponds to the thinning and drawing male die, and the inner diameter of the thinning and drawing female die is larger than the diameter of the top of the thinning and drawing male die; the second elastic mechanism penetrates through the die plate, the lower backing plate and the lower back plate and is connected with the lower die, and the second elastic mechanism is abutted to the ironing male die and stretches along the direction of the ironing female die.
Optionally, the multiple ironing and reverse drawing progressive die comprises a first fixing plate, a reverse drawing female die base plate, a reverse drawing female die plate, a second fixing plate, a male die base plate and a male die plate, wherein the first fixing plate is arranged between the upper die and the lower die and is connected with the upper die; the reverse drawing die base plate is arranged between the first fixing plate and the lower die and is connected with the first fixing plate; the reverse drawing female die plate is arranged between the reverse drawing female die base plate and the lower die and is connected with the reverse drawing die base plate; the second fixing plate is arranged between the reverse drawing template and the lower die and is connected with the lower die; the male die base plate is arranged between the reverse drawing female die plate and the second fixing plate and is connected with the second fixing plate; the convex template is arranged between the reverse drawing concave template and the convex template base plate and is abutted against the convex template base plate; the reverse drawing device comprises a reverse drawing female die, a reverse drawing male die and a third elastic mechanism, wherein the reverse drawing female die is arranged in the reverse drawing female die plate; the third elastic mechanism penetrates through the first fixing plate, the reverse drawing female die base plate and the reverse drawing female die, one end of the third elastic mechanism is connected with the upper die, and the other end of the third elastic mechanism is abutted to the reverse drawing male die; and the reverse drawing male die penetrates through the male die base plate and the male die plate and is connected with the second fixing plate.
Optionally, the upper die comprises an upper die seat plate and an upper backing plate, and the upper backing plate is connected with the upper die fixing plate and fixed on one side of the upper die fixing plate, which faces away from the lower die; the upper die base plate is connected with the upper backing plate and is fixed on one side of the upper backing plate, which is back to the lower die; the multiple ironing and reverse drawing progressive die comprises a first ejection mechanism, the first ejection mechanism penetrates through the upper base plate and the upper die fixing plate, one end of the first ejection mechanism is connected with the upper die base plate, the other end of the first ejection mechanism is abutted to the discharging back plate, and the discharging back plate and the discharging plate are controlled to eject.
Optionally, the multiple ironing and reverse drawing progressive die comprises a stripping hanging block, one end of the stripping hanging block is connected with the upper die fixing plate, and the other end of the stripping hanging block limits the discharging back plate in the vertical direction.
Optionally, the multiple ironing and reverse drawing progressive die comprises a second ejection mechanism, the second ejection mechanism penetrates through the cavity plate, the lower backing plate and the lower back plate, one end of the second ejection mechanism is connected with the lower die, the other end of the second ejection mechanism is abutted to the stripper plate, and the second ejection mechanism controls the stripper plate to eject.
optionally, the multiple ironing and reverse drawing progressive die comprises a third ejection mechanism, the third ejection mechanism penetrates through the female die base plate and the second fixing plate, one end of the third ejection mechanism is connected with the lower die, and the other end of the third ejection mechanism is abutted against the reverse drawing female die plate to control the reverse drawing female die plate to eject.
this application has formed pipe class undergauge attenuation deep-drawing class progressive die through integrating ordinary deep-drawing device, many times attenuation deep-drawing device and anti-deep-drawing device together, utilize single process mould to the relevant technique of pipe class product deep-drawing in this technique, the precision of performance progressive die, it is multi-functional, high-effect advantage, can big batch continuous production, and fine solution some shortcomings of single process mould, the semi-manufactured goods that has reduced in the single process production process moves, machining processes has been reduced, alleviate personnel's intensity of labour, machining precision has been improved, there is the important effect to product quality's stability. Effectively reducing the cost and improving the factory benefit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a block diagram of a multiple ironing and reverse drawing progressive die according to an embodiment of the present application;
Figure 2 is a schematic view of a conventional deep drawing apparatus of an embodiment of the present application with the die open;
Figure 3 is a schematic view of a conventional deep drawing apparatus of an embodiment of the present application with the die closed;
Figure 4 is a schematic view of an ironing apparatus according to an embodiment of the present application with the die open;
figure 5 is a schematic view of an ironing apparatus according to an embodiment of the present application with the die closed;
FIG. 6 is a flow chart of an overall process in ironing a product according to an embodiment of the present application;
Figure 7 is a schematic view of a reverse drawing apparatus of an embodiment of the present application as a die opening for processing a product;
figure 8 is a schematic view of a reverse drawing apparatus of an embodiment of the present application with a product die closed;
figure 9 is a schematic view of a reverse drawing apparatus of an embodiment of the present application with the dies open for processing another product;
figure 10 is a schematic view of a reverse drawing apparatus of an embodiment of the present application with the dies closed for processing another product;
FIG. 11 is a schematic view of a reduced diameter pipe product processed by the multiple ironing and reverse drawing progressive die of the present application.
Wherein, 100, multiple times of thinning drawing and reverse drawing progressive dies; 200. an upper die; 210. an upper die base plate; 220. an upper base plate; 230. an upper die fixing plate; 240. a discharge back plate; 250. a stripper plate; 260. a first fixing plate; 270. reversely drawing the die base plate; 280. reversely drawing the concave template; 281. a first alignment hole; 282. a second alignment hole; 283. a top block; 290. removing the material and hanging the blocks; 291. a groove; 300. a lower die; 310. a lower die base plate; 320. a lower foot pad; 330. a lower base plate; 340. a lower back plate; 350. a lower base plate; 360. a cavity plate; 370. a second fixing plate; 380. a male die backing plate; 390. a convex template; 400. a common deep drawing apparatus; 410. a common deep drawing male die; 420. ordinary deep drawing female dies; 430. a first elastic mechanism; 431. a first rectangular spring; 432. a first ejector rod; 433. a first spring pad; 440. a common deep drawing female die cushion block; 500. a ironing device; 510. thinning and drawing a male die; 520. thinning and drawing the female die; 530. a second elastic mechanism; 531. a third nitrogen spring; 532. a first head member; 533. a second head member; 540. thinning and drawing the female die cushion block; 600. a reverse drawing device; 610. reversely drawing the female die; 620. reverse drawing male die; 630. a third elastic mechanism; 631. a second rectangular spring; 632. a second ejector rod; 633. a second spring pad; 640. a first alignment post; 650. a second alignment post; 700. a first ejection mechanism; 710. a first nitrogen spring; 720 a first screw; 800. a second ejection mechanism; 810. a second gas spring; 820. a second screw; 900. a third ejection mechanism; 910. a third spring pad; 920. a third rectangular spring; 930. and a third ejector rod.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
in the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
the present application is described in detail below with reference to the figures and alternative embodiments.
As shown in fig. 1, as an embodiment of the present application, a multi-ironing and reverse drawing progressive die 100 is disclosed, which comprises an upper die 200, a lower die 300, a normal drawing device 400, an ironing device 500 and a reverse drawing device 600, wherein the upper die 200 is arranged opposite to the lower die 300, and the normal drawing device 400 is arranged between the upper die 200 and the lower die 300 and is used for drawing the basic shape of a workpiece; the ironing device 500 is arranged between the upper die 200 and the lower die 300, and performs diameter reduction ironing on the workpiece drawn by the ordinary drawing device 400; the reverse drawing apparatus 600 is disposed between the upper die 200 and the lower die 300, and draws the workpiece drawn by the ironing apparatus 500 to a final shape and size of the product. When producing some complicated intraductal products, often need to go through many deep-drawing, if adopt single process mould to carry out the deep-drawing, need a plurality of moulds to carry out the deep-drawing respectively, can lead to the production cycle of product to lengthen like this, and is inefficient, and the price of product is on the high side. This application is through in designing ordinary deep-drawing device 400, ironing device 500 and reverse deep-drawing device 600 to one set of mould, and ironing and reverse deep-drawing upgrades mould 100 many times promptly for many times ironing and reverse deep-drawing in this application upgrades mould 100 and can carry out multichannel deep-drawing process to a pipe class product in succession, need not trade the mould, has reduced production processes, alleviates personnel's intensity of labour, has improved the machining precision, and reduce cost has improved the factory benefit.
As shown in fig. 2 and 3, a general drawing apparatus 400 of the present embodiment is schematically illustrated when a die is opened and closed. The multiple ironing and reverse drawing progressive die 100 comprises an upper die fixing plate 230, a discharge back plate 240, a discharge plate 250, a lower back plate 340, a lower backing plate 350 and a concave die plate 360, wherein the upper die fixing plate 230 is arranged between the upper die 200 and the lower die 300 and is connected with the upper die 200; the discharge back plate 240 is disposed between the upper mold fixing plate 230 and the lower mold 300, and abuts against the upper mold fixing plate 230; the discharging plate 250 is arranged between the discharging back plate 240 and the lower die 300 and connected with the discharging back plate 240; the lower back plate 340 is disposed between the stripper plate 250 and the lower mold 300, and is connected to the lower mold 300; the lower backing plate 350 is arranged between the lower back plate 340 and the discharging plate 250, and is connected with the lower back plate 340; the cavity plate 360 is disposed between the lower mat 350 and the stripper plate 250, and is coupled to the lower mat 350; the ordinary deep drawing device 400 comprises an ordinary deep drawing male die 410, an ordinary deep drawing female die 420 and a first elastic mechanism 430, wherein the ordinary deep drawing male die 410 penetrates through the discharging plate 250, the discharging back plate 240 and the upper die fixing plate 230 and is connected with the upper die 200; the common deep drawing female die 420 is arranged in the female die plate 360 and corresponds to the common deep drawing male die 410, and the inner diameter of the common deep drawing female die 420 is larger than the diameter of the top of the common deep drawing male die 410; the first elastic mechanism 430 penetrates through the cavity plate 360, the lower backing plate 350 and the lower back plate 340, and is connected with the lower die 300, and the first elastic mechanism 430 is abutted against the ordinary drawing punch 410 and extends and retracts in the direction of the ordinary drawing die 420.
Specifically, the upper mold 200 includes an upper mold seat plate 210 and an upper shim plate 220, one end of the upper shim plate 220 is connected to the upper mold seat plate 210, and the other end is connected to the upper mold fixing plate 230; the upper die base plate 210, the upper backing plate 220 and the upper die fixing plate 230 are sequentially locked by a pin, a screw and a screw; the discharging plate 250 and the discharging back plate 240 are fixed through screws; in addition, the upper die base plate 210, the upper backing plate 220, the upper die fixing plate 230, the discharging back plate 240 and the discharging plate 250 are connected and aligned through pins; the normal drawing punch 410 is fixed in the upper die 200 by screws. The multiple ironing and reverse drawing progressive die 100 comprises a first ejection mechanism 700, wherein the first ejection mechanism 700 penetrates through the upper base plate 220 and the upper die fixing plate 230, one end of the first ejection mechanism 700 is connected with the upper die base plate 210, the other end of the first ejection mechanism 700 abuts against the discharging back plate 240, and the discharging back plate 240 and the discharging plate 250 are controlled to eject. The first ejection mechanism 700 includes a first nitrogen spring 710 and a first screw 720, one end of the first nitrogen spring 710 is fixed to the upper die base plate 210 of the upper die 200 by the first screw 720, and the other end abuts against the discharge back plate 240, thereby controlling ejection of the discharge back plate 240. The multiple ironing and reverse drawing progressive die 100 comprises stripping hanging blocks 290, the stripping hanging blocks 290 are symmetrically arranged, one end of each stripping hanging block 290 is connected with the upper die fixing plate 230, and the other end of each stripping hanging block 290 vertically limits the discharging back plate 240. A groove 291 is formed in the stripping hanger 290, one end of each of the upper mold fixing plate 230 and the discharge back plate 240 abuts against a side wall of the groove 291, the height of the groove 291 is greater than the sum of the heights of the upper mold fixing plate 230 and the discharge back plate 240, and the first end of the upper mold fixing plate 230 is fixed to the side wall of the groove 291 of the stripping hanger 290 through a screw. Since the height of the groove 291 is greater than the sum of the heights of the discharge back 240 and the upper mold fixing plate 230, and the discharge back 240 is not fixed to the stripper hitch 290, the discharge plate 250 and the discharge back 240 are displaceable in the groove 291 in the direction of the side wall of the groove 291.
The lower die 300 comprises a lower die base plate 310, a lower cushion plate 320 and a lower base plate 330 which are sequentially far away from the upper die 200, the concave die plate 360, the lower cushion plate 350, the lower back plate 340 and the lower die base plate 310 are fixed through screws and are also fixed in an aligning mode through pins, the lower die base plate 310 and the lower cushion plate 320 are fixed through screws, and the lower cushion plate 320 and the lower base plate 330 are fixed through screws. The lower backing plate 350 is made of a material with high hardness, so that the structure of the lower die 300 is simplified, and the lower die is convenient to install, debug and replace spare parts during later production and processing. The multiple ironing and reverse drawing progressive die 100 comprises a second ejection mechanism 800, the second ejection mechanism 800 penetrates through the cavity plate 360, the lower backing plate 350 and the lower back plate 340, one end of the second ejection mechanism 800 is connected with the lower die 300, the other end of the second ejection mechanism 800 is abutted against the discharging plate 250, and the second ejection mechanism 800 controls the discharging plate 250 to eject; the second ejection mechanism 800 includes a second gas spring 810 and a second screw 820, one end of the second gas spring 810 is fixed to the lower die base plate 310 by the second screw 820, and the other end abuts against the stripper plate 250; a common drawing die cushion block 440 is arranged below the common drawing die 420, the common drawing die cushion block 440 is made of hard materials, and the structure below the die plate 360 is prevented from being damaged by the drawing male die when the drawing male die pushes up the workpiece. The first elastic mechanism 430 comprises a first spring cushion block 433, a first rectangular spring 431 and a first ejector rod 432, the first spring cushion block 433 is arranged in the lower die base plate 310 and connected with the lower pad 320, one end of the first rectangular spring 431 is connected with the first ejector rod 432, the other end of the first rectangular spring 431 is connected with the first spring cushion block 433, and the first ejector rod 432 is abutted to the common drawing male die 410 to realize drawing of a workpiece.
When the ordinary drawing punch 410 fixed on the upper die fixing plate 230 is firstly led into the material belt in the discharging plate 250 and then is contacted with the cavity plate 360, the ordinary drawing punch 410 fixed in the upper die fixing plate 230 continuously downwards presses the material with the first push rod 432 firstly, and then the upper die 200 continuously downwards, so that the ordinary drawing punch 410 enters the ordinary drawing die 420 to finish the action of ordinary drawing. In the downward process of the upper die 200, the first ejection mechanism 700 controls the lower surface of the upper die fixing plate 230 to contact the upper surface of the discharging back plate 240, presses the discharging back plate 240 and the discharging plate 250 to move downward, and along with the closing of the die, the upper surface of the discharging back plate 240 is extruded to be attached to the lower surface of the upper die fixing plate 230, so that the common drawing male die 410 protrudes out of the discharging plate 250 more and more, and finally the common drawing is completed; after the normal drawing is completed, the second ejection mechanism 800 pushes the strip out of the normal drawing die 420 plate 360.
As shown in fig. 4 and 5, a drawing and ironing apparatus 500 according to the present embodiment is schematically illustrated when the die is opened and closed. The thinning and drawing structure comprises a thinning and drawing convex die 510, a thinning and drawing concave die 520 and a second elastic mechanism 530; the thinning and drawing male die 510 penetrates through the discharge plate 250, the discharge back plate 240 and the upper die fixing plate 230 and is connected with the upper die 200; the ironing die 520 is arranged in the die plate 360 and corresponds to the ironing male die 510, and the inner diameter of the ironing die 520 is larger than the diameter of the top of the ironing male die 510; the second elastic mechanism 530 penetrates through the cavity plate 360, the lower backing plate 350 and the lower back plate 340 and is connected with the lower die 300, and the second elastic mechanism 530 abuts against the ironing male die 510 and extends and contracts in the direction of the ironing female die 520. The diameter of the upper half part of the ironing male die 510 is larger than that of the lower half part, so that the strength of the ironing male die 510 can be increased, the breakage can be prevented, and corresponding clearance grooves are formed in the discharging back plate 240 and the discharging plate 250; an ironing die cushion block 540 is arranged below the ironing die 520; the second elastic structure includes a third nitrogen spring 531, a first top member 532 and a second top member 533, the first top member 532 is disposed between the second top member 533 and the third nitrogen spring 531, two ends of the first top member 532 are respectively connected with the second top member 533 and the third nitrogen spring 531, and a diameter of the second top member 533 is greater than a diameter of the first top member 532. Moreover, the ironing die 520 is made of tungsten steel and is coated.
When the ironing male die 510 fixed on the upper die fixing plate 230 firstly guides the material belt in the discharging plate 250 and then contacts with the female die plate 360, the ironing male die 510 fixed in the upper die fixing plate 230 continuously downwards presses the material with the second top member 533 firstly, and then continuously downwards enters the ironing female die 520, so that the ironing action is completed. In the downward process of the upper die 200, the first ejection mechanism 700 controls the lower surface of the upper die fixing plate 230 to contact with the upper surface of the discharging back plate 240, and presses the discharging back plate 240 and the discharging plate 250 to move downward, and along with the closing of the die, the upper surface of the discharging back plate 240 is extruded to be attached to the lower surface of the upper die fixing plate 230, so that the thinning and drawing male die 510 protrudes out of the discharging plate 250 and enters the thinning and drawing female die 520, and finally thinning and drawing are completed; after the ironing is completed, the second ejection mechanism 800 pushes the strip out of the cavity plate 360.
As shown in fig. 6, the whole process flow in the ironing process of the product in the present embodiment is divided into 36 stations g1 to g 36. Wherein: a station g1 is used for punching a pilot hole, and the pilot hole is used for accurately positioning a later station and punching a phi 3.03 hole; punching the process notches from the station g2 to the station g5, and punching the rest process notches by using the guide holes punched in the front for accurate positioning; g6, drawing downwards to form a cylinder with an inner diameter phi 24, wherein the station is a station for drawing downwards to form 1; the stations g 7-g 9 are idle stations and are used for preventing the deformation of the material belt and preventing the material pulling phenomenon; g10, namely drawing a 2-station downwards to form a cylinder with the inner diameter phi of 16.2; g11, drawing a barrel shape with the inner diameter phi of 12.2 downwards, wherein the station is a 3-station for drawing downwards; g13, the station is downward ironing, and the required cylinder shape is formed by the punch with phi 12.2 and the ironing female die 520 with the inner diameter phi 9.6; g14, namely an ironing station, and ironing the required cylinder by a male die with phi 8.1 and an ironing female die 520 with the inner diameter phi 9.9; g16, namely an ironing station, and ironing the required barrel shape by a male die with phi 7.2 and an ironing female die 520 with the inner diameter phi 8.98; a g17 station is an ironing station, and a required cylinder shape is ironed by a male die with the diameter of 7.18 and an ironing female die 520 with the inner diameter of 8.68; stations g 18-g 20 are empty stations, and enough space is reserved for distribution of the next working procedure; g21 station reverse drawing station 1; the g23 station is a reverse drawing station 2; the g25 station is a reverse drawing station 3; g27 is a shaping station; stations g 28-g 30 are empty stations, and enough space is reserved for distribution of the next working procedure; the g31 station is a bottom hole punching station; the g33 station is a half-cutting station; the g35 station is a product falling station, so that the required product is cut off and separated from the material belt and falls down from the lower die 300 seat; the g36 station is a waste material cutting station; cutting off redundant waste materials; the continuous punching forming of the whole cylinder product is completed through the above 36 stations.
The tube diameter-reducing ironing progressive die of the embodiment corresponds to each non-idle station in the drawing and comprises the following parts from left to right (from front to back according to the feeding direction): a positive punching guide hole on a g1 station, a punching process notch on a g2 station, a downward drawing 1 on a g6 station, a downward drawing 2 on a g10 station, a downward drawing 3 on a g11 station, an ironing on a g13 station, an ironing on a g14 station, an ironing on a g16 station, an ironing on a g17 station, a g21 station is a reverse drawing 1 station, a reverse drawing 2 station on a g23 station, a g25 station is a reverse drawing 3 station, a g27 station is a reverse drawing shaping station, g31 is a bottom punching hole station, g33 is a half cutting station, g35 is a product falling station, and g36 is a waste cutting station; and each device respectively and sequentially completes corresponding actions of each station. In the blanking forming fine cutting section progressive die of the embodiment of the invention, except the stations g16 and g17, the rest are all designed conventionally.
as shown in fig. 7 to 8, there are schematic views of a reverse drawing apparatus 600 in the present embodiment when a die is opened and closed while a product is being processed; fig. 9 and 10 are schematic views of a reverse drawing apparatus 600 according to the present embodiment when a die is opened and closed while processing another product. The multiple ironing and reverse drawing progressive die 100 comprises a first fixing plate 260, a reverse drawing die backing plate 270, a reverse drawing die plate 280, a second fixing plate 370, a male die backing plate 380 and a male die plate 390, wherein the first fixing plate 260 is arranged between the upper die 200 and the lower die 300 and is connected with the upper die 200; the reverse drawing die plate 270 is disposed between the first fixing plate 260 and the lower die 300, and is connected to the first fixing plate 260; the reverse drawing female die plate 280 is arranged between the reverse drawing female die backing plate 270 and the lower die 300 and is connected with the reverse drawing die backing plate; the second fixing plate 370 is disposed between the reverse drawing die plate and the lower die 300, and connected to the lower die 300; the punch backing plate 380 is arranged between the reverse drawing die plate 280 and the second fixing plate 370, and is connected with the second fixing plate 370; the male die plate 390 is disposed between the reverse drawing female die plate 280 and the male die pad 380, and abuts against the male die pad 380; the reverse drawing device 600 comprises a reverse drawing female die 610, a reverse drawing male die 620 and a third elastic mechanism 630, wherein the reverse drawing female die 610 is arranged in the reverse drawing female die plate 280; the third elastic mechanism 630 penetrates through the first fixing plate 260, the reverse drawing die cushion plate 270 and the reverse drawing die 610, and one end of the third elastic mechanism is connected with the upper die 200 while the other end of the third elastic mechanism is abutted against the reverse drawing male die 620; the reverse drawing punch 620 penetrates through the punch backing plate 380 and the punch plate 390, and is connected to the second retainer plate 370.
specifically, the first fixing plate 260, the upper cushion plate 220 and the upper mold base plate 210 are connected by screws, the reverse drawing die base plate 270 and the first fixing plate 260 are fixed by screws, and the reverse drawing die plate 280 and the reverse drawing die base plate 270 are fixed by screws; the lower die base plate 310, the second fixing plate 370 and the male die plate 380 are connected at one end by screws and at the other end by pins, the multi-ironing and reverse drawing progressive die 100 further comprises a first alignment column 640 and a second alignment column 650, the first alignment column 640 penetrates through the male die plate 380 and the male die plate 390, one end of the first alignment column is connected with the second fixing plate 370, and the other end of the first alignment column protrudes out of the male die plate 390; the second alignment pin 650 penetrates the second retainer plate 370, the punch backing plate 380 and the punch plate 390, one end of which protrudes from the punch plate 390, and the other end of which is connected to the lower die base plate 310. The reverse drawing female die plate 280 is provided with a first alignment hole 281, a second alignment hole 282 and a top block 283, the first alignment hole 281 is matched with the first alignment column 640, the second alignment hole 282 is matched with the second alignment column 650, and the first alignment column 640 and the second alignment column 650 are arranged at two ends of the male die block to perform alignment; the top block 283 protrudes out of the reverse drawing female die 610 block and abuts against the male die plate 390, so that when the workpiece is subjected to reverse drawing, the flanging of the workpiece can be protected, and the flanging of the workpiece is prevented from being extruded by the reverse drawing female die plate 280 and the male die block.
The third elastic mechanism 630 includes a second spring pad 633, a second rectangular spring 631, and a second ram 632, the second spring pad 633 is fixed in the upper die plate 210, one end of the second rectangular spring 631 is connected to the second spring pad 633, the other end is connected to the second ram 632, and the second ram 632 protrudes from the reverse drawing die plate 280. The multiple ironing and reverse drawing progressive die 100 comprises a third ejection mechanism 900, the third ejection mechanism 900 penetrates through the die backing plate and the second fixing plate 370, one end of the third ejection mechanism 900 is connected with the lower die 300, and the other end of the third ejection mechanism 900 is abutted against the reverse drawing die plate 280 to control the reverse drawing die plate 280 to eject. The third ejection mechanism 900 includes a third spring cushion block 910, a third rectangular spring 920 and a third ejector rod 930, the third spring cushion block 910 is disposed in the lower mold base plate 310 and connected to the lower bolster 320, one end of the third rectangular spring 920 is connected to the third spring cushion block 910, the other end is connected to the third ejector rod 930, the third ejector rod 930 is abutted to the convex mold plate 390, and the third rectangular spring 920 controls the third ejector rod 930 to eject the convex mold plate 390.
When the upper die 200 moves towards the lower die 300, the second ejector rod 632 and the reverse drawing punch 620 press the material first, and then the upper die 200 continues to press down, so that the reverse drawing punch 620 enters the reverse drawing die 610 to complete the action of reverse drawing. In the downward movement process of the upper die 200, the first alignment column 640 and the second alignment column 650 respectively enter the first alignment hole 281 and the second alignment hole 282, then the top block 283 is abutted with the convex die plate 390 and presses the convex die block to move downward, the lower surface of the convex die block is extruded to be abutted with the upper surface of the convex die backing plate 380 along with the closing of the die, and the reverse drawing convex die 620 enters the reverse drawing concave die 610 to complete the reverse drawing action of the workpiece; after the reverse drawing is completed, the die is opened, and the third ejection mechanism 900 ejects the die plate 390 and the workpiece.
Fig. 11 is a schematic view of a reduced diameter pipe product processed by the multiple ironing and reverse drawing progressive die 100 according to the present invention.
the foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (8)
1. A multiple ironing and reverse drawing progressive die is characterized by comprising:
An upper die;
The lower die is arranged opposite to the upper die;
The common drawing device is arranged between the upper die and the lower die and is used for drawing the basic shape of the workpiece;
the thinning and drawing device is arranged between the upper die and the lower die and is used for reducing and thinning the workpiece drawn by the common drawing device; and
And the reverse drawing device is arranged between the upper die and the lower die and is used for drawing the workpiece drawn by the thinning drawing device to the final shape and size of the product.
2. The progressive die for multiple ironing and reverse drawing of claim 1, wherein the progressive die for multiple ironing and reverse drawing comprises:
The upper die fixing plate is arranged between the upper die and the lower die and is connected with the upper die;
The discharging back plate is arranged between the upper die fixing plate and the lower die and is abutted against the upper die fixing plate;
The discharging plate is arranged between the discharging back plate and the lower die and is connected with the discharging back plate;
The lower back plate is arranged between the stripper plate and the lower die and is connected with the lower die;
the lower backing plate is arranged between the lower back plate and the stripper plate and is connected with the lower back plate; and
The concave template is arranged between the lower backing plate and the stripper plate and is connected with the lower backing plate;
the common deep drawing device comprises a common deep drawing male die, a common deep drawing female die and a first elastic mechanism, wherein the common deep drawing male die penetrates through the discharging plate, the discharging back plate and the upper die fixing plate and is connected with the upper die;
The common deep drawing female die is arranged in the female die plate and corresponds to the common deep drawing male die, and the inner diameter of the common deep drawing female die is larger than the diameter of the top of the common deep drawing male die; the first elastic mechanism penetrates through the concave die plate, the lower backing plate and the lower back plate and is connected with the lower die, and the first elastic mechanism is abutted to the common deep drawing male die and stretches along the direction of the common deep drawing female die.
3. the multiple ironing and reverse drawing progressive die as claimed in claim 2, wherein the ironing structure comprises an ironing male die, an ironing female die and a second elastic mechanism;
the thinning and drawing male die penetrates through the discharging plate, the discharging back plate and the upper die fixing plate and is connected with the upper die;
the thinning and drawing female die is arranged in the female die plate and corresponds to the thinning and drawing male die, and the inner diameter of the thinning and drawing female die is larger than the diameter of the top of the thinning and drawing male die; the second elastic mechanism penetrates through the die plate, the lower backing plate and the lower back plate and is connected with the lower die, and the second elastic mechanism is abutted to the ironing male die and stretches along the direction of the ironing female die.
4. the progressive die for multiple ironing and reverse drawing of claim 1, wherein the progressive die for multiple ironing and reverse drawing comprises:
the first fixing plate is arranged between the upper die and the lower die and is connected with the upper die;
The reverse drawing die base plate is arranged between the first fixing plate and the lower die and is connected with the first fixing plate;
the reverse drawing female die plate is arranged between the reverse drawing female die base plate and the lower die and is connected with the reverse drawing female die base plate;
The second fixing plate is arranged between the reverse drawing concave template and the lower die and is connected with the lower die;
The male die base plate is arranged between the reverse drawing female die plate and the second fixing plate and is connected with the second fixing plate; and
the convex die plate is arranged between the reverse drawing concave die plate and the convex die base plate and is abutted against the convex die base plate;
the reverse drawing device comprises a reverse drawing female die, a reverse drawing male die and a third elastic mechanism, wherein the reverse drawing female die is arranged in the reverse drawing female die plate; the third elastic mechanism penetrates through the first fixing plate, the reverse drawing female die base plate and the reverse drawing female die, one end of the third elastic mechanism is connected with the upper die, and the other end of the third elastic mechanism is abutted to the reverse drawing male die; and the reverse drawing male die penetrates through the male die base plate and the male die plate and is connected with the second fixing plate.
5. The multiple ironing and reverse drawing progressive die as claimed in claim 3, wherein said upper die includes an upper die seat plate and an upper backing plate, said upper backing plate being attached to said upper die holding plate and fixed to a side of said upper die holding plate facing away from said lower die; the upper die base plate is connected with the upper backing plate and is fixed on one side of the upper backing plate, which is back to the lower die;
the multiple ironing and reverse drawing progressive die comprises a first ejection mechanism, the first ejection mechanism penetrates through the upper base plate and the upper die fixing plate, one end of the first ejection mechanism is connected with the upper die base plate, the other end of the first ejection mechanism is abutted to the discharging back plate, and the discharging back plate and the discharging plate are controlled to eject.
6. the progressive die for multiple ironing and reverse drawing according to claim 5, wherein the progressive die for multiple ironing and reverse drawing comprises a stripping hanger block, one end of the stripping hanger block is connected with the upper die fixing plate, and the other end of the stripping hanger block vertically limits the discharge back plate.
7. the multiple ironing and reverse drawing progressive die according to claim 5, wherein the multiple ironing and reverse drawing progressive die comprises a second ejection mechanism, the second ejection mechanism penetrates through the cavity plate, the lower backing plate and the lower back plate, one end of the second ejection mechanism is connected with the lower die, the other end of the second ejection mechanism is abutted to the stripper plate, and the second ejection mechanism controls the stripper plate to eject.
8. the progressive die for multiple ironing and reverse drawing according to claim 4, wherein the progressive die for multiple ironing and reverse drawing comprises a third ejection mechanism, the third ejection mechanism penetrates through the die backing plate and the second fixing plate, one end of the third ejection mechanism is connected with the lower die, and the other end of the third ejection mechanism is abutted against the reverse drawing female die plate to control the reverse drawing female die plate to eject.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874179.6A CN110538922A (en) | 2019-09-17 | 2019-09-17 | progressive die for multiple thinning drawing and reverse drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874179.6A CN110538922A (en) | 2019-09-17 | 2019-09-17 | progressive die for multiple thinning drawing and reverse drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110538922A true CN110538922A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874179.6A Pending CN110538922A (en) | 2019-09-17 | 2019-09-17 | progressive die for multiple thinning drawing and reverse drawing |
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| Country | Link |
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| CN (1) | CN110538922A (en) |
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