CN109047457B - Stamping device with scrap-free blanking and punching die - Google Patents
Stamping device with scrap-free blanking and punching die Download PDFInfo
- Publication number
- CN109047457B CN109047457B CN201811043897.0A CN201811043897A CN109047457B CN 109047457 B CN109047457 B CN 109047457B CN 201811043897 A CN201811043897 A CN 201811043897A CN 109047457 B CN109047457 B CN 109047457B
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- punching
- positioning block
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- 238000004080 punching Methods 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 251
- 230000000903 blocking effect Effects 0.000 claims abstract description 39
- 238000000465 moulding Methods 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims description 77
- 239000002699 waste material Substances 0.000 claims description 31
- 238000012546 transfer Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000670 limiting effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 38
- 238000003754 machining Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010909 process residue Substances 0.000 description 1
Classifications
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/021—Control or correction devices in association with moving strips
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the field of machining, in particular to a stamping device with a scrap-free blanking and punching die, which comprises a frame, a punching die and a material plate feeding device, wherein the punching die comprises an upper die frame, a forming male die, a lower die frame, a female die plate, a lifting driving device, a material blocking positioning block, a material plate guide plate and a material plate; the material blocking positioning block is arranged at the front side of the molding cavity of the female die plate, and the rear side surface of the material blocking positioning block is matched with the front side surface of the molding male die; the stripper plate is connected to the lower side of the upper die frame through a spring device; the material guide plates are a pair, are fixed above the upper end surface of the concave template and are respectively positioned at the left side and the right side in the advancing direction of the material plate; a channel interval is reserved between the upper parts of the inner side walls of the two material guide plates; the lower parts of the inner side walls of the two material guide plates are provided with material guide slots; the upper end face of the material blocking positioning block is higher than the upper end face of the female die plate, and a gap is reserved between the left side and the right side of the upper end of the material blocking positioning block and the upper parts of the inner side walls of the two material guide plates of the material plate; the device ensures that the middle part has no overlap edge when the material plate is stamped, thereby saving processing materials.
Description
Technical Field
The present invention relates to the field of machining.
Background
The blanking is an important procedure in the stamping process, and when the die is used for designing the layout, in order to compensate feeding errors, the material plate 10 'is reliably positioned on the forming cavity, and process residues (see fig. 1) are left between the workpiece and between the workpiece and the side edge of the material plate 10', so that the process trimming is considered when the blanking piece is used for the layout process, the trimming is overlarge, the material is wasted, the utilization rate of the plate is reduced, the waste is caused, the manufacturing cost is increased, the trimming is too small, the effect of bearing pressure by the trimming cannot be realized, the blanking piece can be pulled into the gap between the female die and the male die, the die is easy to wear, even the die edge is damaged, the trimming with a certain width is separated from each other by the blanking piece, and the quality of the blanking piece is ensured, but the workload of a designer is increased, and the material utilization rate is lower.
In addition, after the die of the traditional punching die is worn, in order to ensure the product quality, a die plate and even a whole set of male die 5' and the die plate need to be replaced, so that the consumption in the production process is further increased.
Disclosure of Invention
The invention aims to provide a stamping device with a scrap-free blanking and punching die, which improves the stamping die and can lead the middle part of a material plate to be scrap-free during stamping, thereby saving processing materials.
The invention is realized by the following technical scheme: the stamping device comprises a frame, a punching die arranged on the frame and a material plate feeding device arranged on one side of a feeding hole of the frame, wherein the punching die comprises an upper die frame movably connected to the upper side of the frame, a forming male die fixedly arranged at the bottom of the upper die frame, a lower die frame fixedly arranged on the lower side of the frame, a concave die plate fixedly arranged above the lower die frame and positioned below the forming male die, and a lifting driving device for driving the upper die frame to move up and down relative to the lower die frame; the outer contour of the molding male die is consistent with the outer contour of a workpiece to be molded, and a molding cavity matched with the molding male die is formed in the middle of the female die plate; the method is characterized in that:
the punching die further comprises a material blocking positioning block, a material plate guide plate and a material discharging plate;
the material blocking positioning block is fixedly arranged on the front side of the forming cavity of the female die plate, and the rear side surface of the material blocking positioning block is matched with the front side surface of the forming male die, so that the forming male die can move up and down along the rear side surface of the material blocking positioning block;
the stripper plate is elastically connected to the lower side of the upper die frame through a spring device and is positioned at the rear side of the forming male die, the front side surface of the stripper plate is matched with the rear side surface of the forming male die, and when the die is opened, the stripper plate delays to leave the stripper plate under the action of the spring device, so that the stripper plate is still pressed on the female die plate;
the number of the material guide plates of the material plate is one pair, and the material guide plates are fixedly arranged above the upper end surface of the female die plate and are respectively positioned at the left side and the right side of the advancing direction of the material plate; a channel interval which is convenient for the up-and-down movement of the stripper plate and the forming male die is reserved between the upper parts of the inner side walls of the two material guide plates; the lower parts of the inner side walls of the two material guide plates are provided with material guide notches which are used for limiting the left and right side edges of the front material guide plate respectively, and the material guide plates can only move along the direction of the material guide notches after entering the punching die;
the upper end face of the material blocking positioning block extends upwards to be higher than the upper end face of the female die plate and is located in a channel interval between the upper parts of the inner side walls of the two material plate guide plates, gaps which are convenient for the edges of the processing waste materials on the left side and the right side of the material plate to pass through are reserved between the left side and the right side of the upper end of the material blocking positioning block and the upper parts of the inner side walls of the two material plate guide plates, and therefore the material blocking positioning block can position the material plate and does not block the processing waste materials on the two sides from passing through.
The working principle of the technical scheme of the invention is described as follows: and the punching die is arranged in the frame, so that the upper die frame moves up and down along with the lifting driving device on the upper side of the frame relative to the lower die frame. The material plate feeding device is arranged at one side of the feeding hole of the frame, so that the material plate moves towards the feeding hole of the frame under the action of the material plate feeding device; the upper die frame, the forming male die, the female die plate and the lower die frame of the punching die are sequentially arranged from top to bottom, so that the forming male die and the forming cavity of the female die plate are aligned;
the material plate is fed through a material plate feeding device, the left and right side edges of the material plate advance along a material guide notch under the limiting action of the material plate material guide plate until the front end of the material plate is clung to the rear side surface of a material blocking positioning block, the positioning of the material plate can be completed, then a punching die is assembled for punching and forming, a processing workpiece falls from a forming cavity, and processing waste materials on the left and right sides of the remaining material plate; when the punching die is opened, the forming male die moves upwards, and the stripper plate is separated from the stripper plate under the action of the spring device, so that the stripper plate is still positioned on the female die plate, and the stripper plate is prevented from being clamped on the forming male die; and the material plate continues to advance until the front side of the residual material plate touches the rear side of the upper end of the material blocking positioning block, and the processing waste leaves the punching die through the gap between the left side and the right side of the upper end of the material blocking positioning block and the inner side walls of the two material plate guide plates. When the next processing is continued, no overlap is formed between holes formed by punching the material plate twice before and after.
The technical scheme of the invention is further improved as follows:
in order to facilitate processing of the workpiece with the hole, the bottom of the upper die carrier is further fixedly connected with a punching male die positioned at the rear side of the forming male die; the stripper plate is provided with a guide hole which is convenient for the punching male die to move up and down; the concave template is provided with a punching cavity which is positioned at the rear side of the forming cavity and matched with the punching male die for punching; the position of the punching cavity on the die plate is the position of the forming cavity for moving the outer contour of the workpiece to be formed backwards and corresponds to the hole position on the workpiece to be formed, and the workpiece to be formed is punched firstly and then is processed and formed, so that the station in the punching die can be divided into a punching station and a forming station, and after the material plate is positioned by the material blocking positioning block, the material plate positioned on the punching station and the material plate positioned on the forming station are processed simultaneously, and the material plate after punching advances to the forming station for forming and processing in the next working period.
In order to reduce the cost of die wear consumption, further, the die plate is equipped with and is located the shaping chamber front side and link up to the opening of die plate front end face by shaping chamber front side, and the opening part left and right sides is equipped with the forked tail spout, keep off the material locating piece and install in the opening, the front side of keeping off the material locating piece left and right sides is equipped with the forked tail shape flange with corresponding forked tail spout sliding fit, is equipped with the threaded connection hole that is used for corresponding wearing to establish threaded connection piece so that keep off material locating piece and die plate fixed connection on the forked tail shape flange, the extending direction of forked tail spout is parallel with the flitch direction of advance, the central line of threaded connection hole is perpendicular with the flitch direction of advance, when installing die plate and keeping off the material locating piece, with the forked tail shape flange correspondence slip into the forked tail spout on the fender material locating piece, keep off the material locating piece can slide along the forked tail spout in a straight line in the opening, after keeping off the material locating piece and slide to required position, screw connection piece, make threaded connection piece bottom is close to the forked tail spout, the opposite force that is perpendicular to the forked tail spout is exerted to the forked tail flange simultaneously, makes the forked tail shape flange fixed with the forked tail spout. The position of the material blocking positioning block can be adjusted or the material blocking positioning block can be replaced according to the requirement (when abrasion occurs).
In order to facilitate the collection and arrangement of the processing waste materials, the labor force in the processing process is reduced, further, an automatic material rolling device is further arranged on one side of a discharge hole of the frame, and the processing waste materials leaving the punching die through gaps between the left side and the right side of the upper end of the material blocking positioning block and the upper parts of the inner side walls of the two material guide plates are rolled and collected.
In order to more conveniently and effectively roll the processing waste, the automatic material rolling device further comprises two groups of vertical support frames which are respectively arranged at the left side and the right side of a discharge hole of the frame, two groups of material rolling components which are respectively arranged between the two groups of vertical support frames and are arranged left and right, a transfer connecting piece connected between the two groups of material rolling components, and a transfer component connected between each group of material rolling components and the vertical support frames;
each group of material rolling components consists of two material rolling rods which are parallel to each other, each material rolling rod is horizontally arranged and is vertical to the discharging direction of the material plate, and a plugboard interval slightly larger than the thickness of the material plate is arranged between the two material rolling rods; the opposite surfaces between the two material rolling rods play a role in collecting and guiding, and when one end of the processing waste material contacts the opposite surfaces between the material rolling rods, the processing waste material is automatically inserted into the plugboard interval along the surfaces of the material rolling rods;
the transfer connecting piece comprises a pair of positioning plates which are parallel to each other and are perpendicular to the coil stock rods, a sleeve connected between the two positioning plates and a pressure spring arranged in the sleeve, each positioning plate is provided with a plug hole for plugging two coil stock rods on the corresponding side, and each plug hole on each positioning plate is coaxially arranged with one plug hole on the positioning plate on the other side; the ends of the coiled material rods, which extend into the plug holes, are provided with anti-drop flanges for preventing the coiled material rods from being outwards separated from the plug holes, and the two ends of the pressure spring respectively act between the ends of the two groups of coiled material rods, which are inserted into the plug holes; when the rolling rods are needed, the total length of the two ends of the two groups of rolling rods can be shortened by only compressing the rolling rods to the middle pressure spring;
each group of switching components comprises a rotary table, a rotary table rotating shaft which is rotationally connected with a bearing arranged on a vertical supporting frame is arranged at the outer side of the rotary table, and a jack for inserting two coil rods is arranged at the inner side of the rotary table; when the material rolling rods are connected with the switching assembly, the total length of the two ends of the two groups of material rolling rods is shortened, after the two groups of material rolling rods are coaxially aligned with the jacks on the two sides, the compression force is removed, and the material rolling rods can be inserted into the jacks for inserting the two material rolling rods and fixed under the action of the pressure spring;
the automatic material rolling device also comprises a motor which is arranged on the outer side of the vertical support frame and is used for being connected with the rotating shaft of the turntable to drive; the motor drives the switching assembly, the coil assembly connected to the switching assembly and the transfer connecting piece between the two groups of coil assemblies to rotate;
after the strip-shaped processing waste materials on two sides leave the punching die, the strip-shaped processing waste materials move towards the automatic material rolling device, the processing waste materials contact the material rolling rods and slide into the insertion plate interval slightly larger than the thickness of the material plate between the two material rolling rods along the surface of the material rolling rods, along with the rotation of the material rolling assembly, the processing waste materials are rolled on the material rolling rods, after the rolling of the processing waste materials is completed, the two groups of material rolling assemblies which are arranged left and right are compressed towards the middle transfer connecting piece, so that the compression springs in the sleeves are stressed and compressed, the total length of two ends of the two groups of material rolling rods is shortened, and the material rolling rods inserted into the insertion holes of the transfer assembly can be pulled out, so that the waste materials which are rolled are transported or processed are processed.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the prior art, the stamping device with the scrap-free blanking and punching die improves the positioning mode of the die, so that scrap calculation is not needed to be considered during die design and typesetting, the work of designers is reduced, and the utilization rate of materials is improved.
2. Compared with the prior art, the stamping device with the scrap-free blanking and punching die improves the installation mode of the stop positioning block, so that the position of the stop positioning block can be adjusted according to the needs, and when the female die or the stop positioning block is worn, only the female die is needed to be replaced or the position of the stop positioning block is needed to be readjusted, thereby further reducing the cost consumed by die wear.
3. Compared with the prior art, the stamping device with the scrap-free blanking and punching die provided by the invention has the advantages that the feeding device and the automatic coiling device for the material plate are added, the production automation is further realized, and the labor is saved.
Drawings
The invention is further described below with reference to the accompanying drawings in conjunction with examples:
fig. 1 is a schematic structural view of a conventional punching die;
FIG. 2 is a top view of a workpiece to be machined;
FIG. 3 is a schematic structural view of an embodiment 1 of a stamping device with a blank-less blanking and punching die of the present invention;
FIG. 4 is a front view of the pierce die of FIG. 3;
FIG. 5 is a schematic view of the structure of the punching die except for the upper die frame and the lower die frame in FIG. 3;
FIG. 6 is a schematic view showing the structure of the male and female mold portions of FIG. 5 except for the forming punch and the piercing punch;
FIG. 7 is an exploded view of the mold section of FIG. 5;
FIG. 8 is a schematic structural view of an embodiment 2 of a stamping device with a scrap-free blanking and punching die of the present invention;
FIG. 9 is a schematic view of the automatic coil stock apparatus of FIG. 8;
FIG. 10 is a cross-sectional view of the transfer assembly of FIG. 9;
FIG. 11 is a cross-sectional view of the transfer link of FIG. 9;
the symbols in the drawings illustrate: 1. the punching die, 11, an upper die carrier, 12, a forming punch, 13, a female die plate, 131, a forming cavity, 132, a punching cavity, 133, an opening, 134, a dovetail chute, 14, a lower die carrier, 15, a material blocking positioning block, 151, a dovetail flange, 152, a threaded connection piece, 153, a threaded connection hole, 16, a material plate guide plate, 161, a material guide slot, 17, a material plate, 171, a spring device, 172, a guide hole, 18, a punching punch, 2, an automatic material coiling device, 21, a vertically arranged support frame, 211, a bearing, 22, a coil stock group, 221, a piece coil stock rod, 222, an anti-falling flange, 23, a transfer connection piece, 231, a positioning disc, 232, a sleeve, 233, a pressure spring, 234, a plug hole, 24, a transfer assembly, 241, a turntable, 242, a turntable rotating shaft, 243, an inserting hole, 25, a motor, 3, a material plate feeding device, 10, a material plate, 101, a workpiece to be formed, 1', an upper die carrier, 2', a lower die carrier, 3', a material plate, 4', a material pressing spring, 5', and a material plate punch.
Detailed Description
The invention is described in detail below with reference to the examples and the attached drawings:
example 1
As shown in fig. 3, the embodiment 1 of the stamping device with the overlap-free blanking punching die provided by the invention comprises a frame, a punching die 1 arranged on the frame and a material plate feeding device 3 arranged on one side of a feeding hole of the frame, wherein the punching die 1 comprises an upper die frame 11 movably connected to the upper side of the frame, a forming male die 12 fixedly arranged at the bottom of the upper die frame 11, a lower die frame 14 fixedly arranged at the lower side of the frame, a female die plate 13 fixedly arranged above the lower die frame 14 and positioned below the forming male die 12, and a lifting driving device for driving the upper die frame 11 to move up and down relative to the lower die frame 14; the outer contour of the molding male die 12 is consistent with the outer contour of the workpiece 101 to be molded, and a molding cavity 131 matched with the molding male die 12 for molding is arranged in the middle of the female die plate 13; the method is characterized in that:
the punching die 1 further comprises a material blocking positioning block 15, a material plate guide plate 16 and a material discharging plate 17;
the material blocking positioning block 15 is fixedly arranged on the front side of the forming cavity 131 of the female die plate 13, and the rear side surface of the material blocking positioning block 15 is matched with the front side surface of the forming male die 12, so that the forming male die 12 can move up and down along the rear side surface of the material blocking positioning block 15;
the stripper plate 17 is elastically connected to the lower side of the upper die frame 11 through a spring device 171 and is positioned at the rear side of the forming male die 12, the front side surface of the stripper plate 17 is matched with the rear side surface of the forming male die 12, and when the die is opened, the stripper plate 17 is delayed to leave the stripper plate 10 under the action of the spring device 171, so that the stripper plate 10 is still pressed on the female die plate 13;
the number of the material plate guide plates 16 is one, and the material plate guide plates are fixedly arranged above the upper end surface of the female die plate 13 and are respectively positioned at the left side and the right side of the advancing direction of the material plate 10; a channel interval which is convenient for the up-and-down movement of the stripper plate 17 and the forming punch 12 is reserved between the upper parts of the inner side walls of the two material plate guide plates 16; the lower parts of the inner side walls of the two material guide plates 16 are provided with material guide grooves 161 which are used for limiting the left and right side edges of the front material guide plate respectively, and the material plates 10 can only move along the direction of the material guide grooves 161 after entering the punching die 1;
the upper end surface of the material blocking positioning block 15 extends upwards to be higher than the upper end surface of the concave die plate 13 and is positioned in a channel interval between the upper parts of the inner side walls of the two material plate guide plates 16, and a gap which is convenient for the edges of the processing waste materials on the left side and the right side of the material plate 10 to pass through is reserved between the left side and the right side of the upper end of the material blocking positioning block 15 and the upper parts of the inner side walls of the two material plate guide plates 16, so that the material blocking positioning block 15 can position the material plate 10 and does not block the processing waste materials on the two sides from passing through.
Firstly, installing a punching die 1 in a frame, enabling an upper die frame 11 to move up and down along with a lifting driving device on the upper side of the frame relative to a lower die frame 14, then installing a material plate feeding device 3 on one side of a material inlet of the frame, and enabling a material plate 10 to move towards the frame under the action of the material plate feeding device 3; an upper die frame 11, a forming male die 12, a female die plate 13 and a lower die frame 14 in the punching die 1 are sequentially arranged from top to bottom, so that the forming male die 12 is aligned with a forming cavity of the female die plate;
after the material plate 10 is fed by the material plate feeding device 3, the left and right side edges advance along the material guide groove 161 under the limiting action of the material plate material guide plate 16 until the front end of the material plate 10 is clung to the rear side surface of the material blocking positioning block 15, the positioning of the material plate 10 can be completed, then the punching die 1 is matched for punching and forming, a processed workpiece falls from a forming cavity, and processing scraps on the left side and the right side of the remaining material plate 10; when the punching die 1 is opened, the forming male die 12 moves upwards, and the stripper plate 17 is separated from the material plate 10 under the action of the spring device 171 and is slower than the lower end of the forming male die 12, so that the material plate 10 is still positioned on the female die plate 13, and the material plate 10 is prevented from being clamped on the forming male die 12; after that, the material plate 10 continues to advance, and the processing waste leaves the punching die 1 through a gap between the left and right sides of the upper end of the material blocking positioning block 15 and the upper parts of the inner side walls of the two material plate guide plates 16.
In order to facilitate processing of the workpiece with holes, the bottom of the upper die frame 11 is further fixedly connected with a punching male die 18 positioned at the rear side of the forming male die 12; the stripper plate 17 is provided with a guide hole 172 which is convenient for the punching male die 18 to move up and down; the female die plate 13 is provided with a punching cavity 132 which is positioned at the rear side of the forming cavity 131 and is matched with the punching male die 18 for punching; the position of the punching cavity 132 on the die plate 13 is that the forming cavity 131 moves backward by one position of the outer contour of the workpiece 101 to be formed and corresponds to the hole position on the workpiece 101 to be formed, and the workpiece 101 to be formed is firstly punched and then formed, so that the station in the punching die 1 can be divided into a punching station and a forming station, after the material plate 10 is positioned by the material blocking positioning block 15, the material plate 10 positioned on the punching station and the material plate 10 positioned on the forming station are simultaneously processed, and the material plate 10 after punching advances to the forming station for forming processing in the next working cycle.
In order to reduce the cost of die abrasion consumption, further, the die plate 13 is provided with an opening 133 positioned at the front side of the forming cavity 131 and penetrating from the front side of the forming cavity 131 to the front end face of the die plate 13, the left side and the right side of the opening (133) are provided with dovetail grooves 134, the stop block 15 is installed in the opening (133), the front sides of the left side and the right side of the stop block 15 are provided with dovetail flanges 151 in sliding fit with the corresponding dovetail grooves 134, the dovetail flanges 151 are provided with threaded connection holes 153 for correspondingly penetrating threaded connection pieces 152 so as to enable the stop block 15 to be fixedly connected with the die plate 13, the extending direction of the dovetail grooves 134 is parallel to the advancing direction of the die plate 10, the center line of the threaded connection holes 153 is perpendicular to the advancing direction of the die plate 10, when the die plate 13 and the stop block 15 are installed, the dovetail flanges 151 on the stop block 15 correspondingly slide into the dovetail grooves 134, the stop block 15 can slide linearly in the opening 133 along the dovetail grooves 134, after the stop block 15 is positioned to a required position, the dovetail flanges 152 are correspondingly penetrated, and simultaneously, the bottom ends of the dovetail flanges 152 are tightly screwed against the dovetail grooves 134, and the dovetail flanges are enabled to be perpendicular to the dovetail flanges 134.
Example 2
Fig. 6 is a schematic structural diagram of an embodiment 2 of a stamping device with a blank-less punching die, where the difference between the embodiment 2 and the embodiment 1 is that: in order to facilitate the collection and arrangement of the processing waste materials, reduce the manpower in the processing process, further, one side of a discharge hole of the frame is also provided with an automatic material coiling device 2, and the processing waste materials leaving the punching die 1 through the gap between the left side and the right side of the upper end of the material blocking positioning block 15 and the upper parts of the inner side walls of the two material plate guide plates 16 are coiled and collected.
In order to more conveniently and effectively roll up the processing waste, the automatic material rolling device 2 further comprises two groups of vertical supporting frames 21 which are respectively arranged at the left side and the right side of a discharge hole of the frame, two groups of material rolling components 22 which are respectively arranged between the two groups of vertical supporting frames 21 and are arranged left and right, a transit connecting piece 23 connected between the two groups of material rolling components 22, and a transit connecting component 24 connected between each group of material rolling components 22 and the vertical supporting frames 21;
each group of material rolling assemblies 22 consists of two material rolling rods 221 which are parallel to each other, each material rolling rod 221 is horizontally arranged and is vertical to the discharging direction of the material plate 10, and a plugboard interval slightly larger than the thickness of the material plate 10 is arranged between the two material rolling rods 221; the opposite surfaces of the two rolling rods 221 play a role of converging and guiding, and when one end of the processing waste contacts the opposite surfaces of the rolling rods 221, the processing waste is automatically inserted into the insertion plate interval along the surfaces of the rolling rods 221;
the transfer connection piece 23 comprises a pair of positioning plates 231 which are parallel to each other and are perpendicular to the material rolling rods 221, a sleeve 232 connected between the two positioning plates, and a pressure spring 233 arranged in the sleeve, wherein each positioning plate is provided with a plug hole 234 for plugging two material rolling rods on the corresponding side, and each plug hole 234 on each positioning plate 231 is coaxially arranged with one plug hole 234 on the other positioning plate; the end part of the material rolling rod 221 extending into the inserting hole 234 is provided with an anti-drop flange 222 for preventing the material rolling rod 221 from being outwards separated from the inserting hole 234, and two ends of the pressure spring 233 respectively act between the end parts of the two groups of material rolling rods 221 inserted into the inserting holes 234; when needed, the total length of the two ends of the two groups of material rolling rods 221 can be shortened by only compressing the material rolling rods 221 towards the middle pressure spring 233;
each group of switching components 24 comprises a rotary table 241, a rotary table rotating shaft 242 which is rotationally connected with a bearing 211 arranged on the vertical supporting frame 21 is arranged on the outer side of the rotary table 241, and a jack 243 for inserting two material rolling rods 221 is arranged on the inner side of the rotary table 241; when the material rolling rods 221 are connected with the switching component 24, the total length of two ends of the two groups of material rolling rods 221 is shortened, after the two groups of material rolling rods 221 are coaxially aligned with the insertion holes 243 on two sides, the compression force is removed, and the material rolling rods 221 can be inserted into the insertion holes 243 for inserting the two material rolling rods 221 and fixed under the action of the pressure springs 233;
the automatic material coiling device 2 further comprises a motor 25 which is arranged on the outer side of the vertical support frame 21 and is used for being connected with a turntable rotating shaft 242 for driving; the motor 25 drives the switching component 24, the coil component 22 connected to the switching component 24 and the transfer connecting piece 23 between the two coil components 22 to rotate;
after the strip-shaped processing waste materials on two sides leave the punching die 1, the strip-shaped processing waste materials move to the automatic material rolling device 2, the processing waste materials contact the material rolling rods 221 and slide into the insertion plate interval slightly larger than the thickness of the material plate 10 between the two material rolling rods 221 along the surface of the material rolling rods 221, along with the rotation of the material rolling assemblies 22, the processing waste materials are rolled on the material rolling rods 221, after the rolling of the processing waste materials is completed, the left and right two sets of material rolling assemblies 22 are compressed towards the middle transfer connecting piece 23, so that the pressure springs 233 in the sleeve 232 are stressed and compressed, the total length of two ends of the two sets of material rolling rods 221 is shortened, and the material rolling rods 221 inserted into the insertion holes 243 of the transfer assembly 24 can be pulled out, so that the rolled waste materials are transported or otherwise processed.
While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the invention. It is, therefore, to be understood that the invention is not to be in any way limited except by the appended claims and their equivalents.
Claims (5)
1. The stamping device comprises a frame, a punching die (1) arranged on the frame, and a material plate feeding device (3) arranged on one side of a material inlet of the frame, wherein the punching die (1) comprises an upper die frame (11) movably connected to the upper side of the frame, a forming male die (12) fixedly arranged at the bottom of the upper die frame (11), a lower die frame (14) fixedly arranged on the lower side of the frame, a female die plate (13) fixedly arranged above the lower die frame (14) and positioned below the forming male die (12), and a lifting driving device for driving the upper die frame (11) to move up and down relative to the lower die frame (14); the outer contour of the molding male die (12) is consistent with the outer contour of the workpiece (101) to be molded, and a molding cavity (131) matched with the molding male die (12) for molding is formed in the middle of the female die plate (13); the method is characterized in that:
the punching die (1) further comprises a material blocking positioning block (15), a material plate guide plate (16) and a material discharging plate (17);
the material blocking positioning block (15) is fixedly arranged on the front side of the forming cavity (131) of the female die plate (13), and the rear side surface of the material blocking positioning block (15) is matched with the front side surface of the forming male die (12);
the stripper plate (17) is elastically connected to the lower side of the upper die frame (11) through a spring device (171) and is positioned at the rear side of the forming male die (12), and the front side surface of the stripper plate (17) is matched with the rear side surface of the forming male die (12);
the number of the material plate guide plates (16) is one, and the material plate guide plates are fixedly arranged above the upper end face of the female die plate (13) and are respectively positioned at the left side and the right side of the advancing direction of the material plate (10); a channel interval which is convenient for the up-and-down movement of the stripper plate (17) and the forming male die (12) is reserved between the upper parts of the inner side walls of the two material plate guide plates (16); the lower parts of the inner side walls of the two material guide plates (16) are provided with material guide slots (161) which are used for limiting the left and right side edges of the front material guide plate respectively;
the upper end face of the material blocking positioning block (15) extends upwards to be higher than the upper end face of the female die plate (13) and is positioned in a channel interval between the upper parts of the inner side walls of the two material plate guide plates (16), and a gap which is convenient for the left side and the right side of the material plate to process waste edges to pass is reserved between the left side and the right side of the upper end of the material blocking positioning block (15) and the upper parts of the inner side walls of the two material plate guide plates (16).
2. The stamping device with a scrap-free blanking and punching die as claimed in claim 1, wherein: the bottom of the upper die frame (11) is fixedly connected with a punching male die (18) positioned at the rear side of the forming male die (12); a guide hole (172) which is convenient for the punching male die (18) to move up and down is arranged on the stripper plate (17); a punching cavity (132) which is positioned at the rear side of the forming cavity (131) and is matched with the punching male die (18) for punching is arranged on the female die plate (13); the punching cavity (132) is located on the female die plate (13) and is located at the position where the forming cavity (131) moves backwards by one outer contour of the workpiece (101) to be formed and corresponds to a hole site on the workpiece (101) to be formed.
3. The stamping device with a scrap-free blanking and punching die as claimed in claim 1, wherein: the die plate (13) is provided with an opening (133) which is positioned at the front side of the forming cavity (131) and is communicated with the front end face of the die plate (13) through the front side of the forming cavity (131), the left side and the right side of the opening (133) are provided with dovetail sliding grooves (134), the material blocking positioning block (15) is arranged in the opening (133), the front side of the left side and the right side of the material blocking positioning block (15) is provided with dovetail flanges (151) which are in sliding fit with the corresponding dovetail sliding grooves (134), the dovetail flanges (151) are provided with threaded connecting holes (153) which are used for correspondingly penetrating threaded connecting pieces (152) so that the material blocking positioning block (15) is fixedly connected with the die plate (13), the extending direction of the dovetail sliding grooves (134) is parallel to the advancing direction of the material plate (10), and the central line of the threaded connecting holes (153) is perpendicular to the advancing direction of the material plate (10).
4. A stamping device with a scrap-less blanking punch die as defined in claim 1, 2 or 3, wherein: an automatic material coiling device (2) is arranged at one side of the discharge hole of the frame.
5. The stamping device with no-overlap blanking punch die as defined in claim 4, wherein: the automatic material rolling device (2) comprises two groups of vertical support frames (21) which are respectively arranged at the left side and the right side of a discharge hole of the frame, two groups of material rolling components (22) which are respectively arranged between the two groups of vertical support frames (21) and are arranged left and right, a transfer connecting piece (23) connected between the two groups of material rolling components (22), and a transfer component (24) connected between each group of material rolling components (22) and the vertical support frames (21);
each group of material rolling components (22) consists of two material rolling rods (221) which are parallel to each other, each material rolling rod (221) is horizontally arranged and is vertical to the discharging direction of the material plate (10), and a plugboard interval slightly larger than the thickness of the material plate (10) is arranged between the two material rolling rods (221);
the transfer connecting piece (23) comprises a pair of positioning plates (231) which are parallel to each other and are perpendicular to the coil rods (221), a sleeve (232) connected between the two positioning plates and a pressure spring (233) arranged in the sleeve, each positioning plate is provided with a plug hole (234) for plugging two coil rods on the corresponding side, and each plug hole (234) on each positioning plate (231) is coaxially arranged with one plug hole (234) on the other positioning plate; the end part of the material rolling rod (221) extending into the inserting hole (234) is provided with an anti-drop flange (222) for preventing the material rolling rod (221) from being outwards separated from the inserting hole (234), and two ends of the pressure spring (233) respectively act between the end parts of the two groups of material rolling rods (221) inserted into the inserting holes (234);
each group of switching components (24) comprises a rotary table (241), a rotary table rotating shaft (242) which is rotationally connected with a bearing (211) arranged on a vertical supporting frame (21) is arranged on the outer side of the rotary table (241), and a jack (243) for inserting two material winding rods (221) is arranged on the inner side of the rotary table (241);
the automatic material rolling device (2) also comprises a motor (25) which is arranged on the outer side of the vertical support frame (21) and is used for being connected with the rotating shaft (242) of the rotating disc for driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043897.0A CN109047457B (en) | 2018-09-07 | 2018-09-07 | Stamping device with scrap-free blanking and punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043897.0A CN109047457B (en) | 2018-09-07 | 2018-09-07 | Stamping device with scrap-free blanking and punching die |
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| CN109047457A CN109047457A (en) | 2018-12-21 |
| CN109047457B true CN109047457B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811043897.0A Active CN109047457B (en) | 2018-09-07 | 2018-09-07 | Stamping device with scrap-free blanking and punching die |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110586765A (en) * | 2019-09-30 | 2019-12-20 | 马鞍山邦德医疗器械有限公司 | Needle thread die punching device with sawtooth-shaped tail end and die punching method |
| CN113695444A (en) * | 2021-09-11 | 2021-11-26 | 浙江希格尔工贸有限公司 | Production equipment and production process of scooter base |
| CN114535445A (en) * | 2022-03-15 | 2022-05-27 | 湖南箔乐新材料科技有限公司 | Forming die is used in processing of high temperature resistant two check aluminium foil boxes |
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| CN201399540Y (en) * | 2009-05-04 | 2010-02-10 | 杭州东华链条集团有限公司 | Blanking die |
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| CN109047457A (en) | 2018-12-21 |
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