CN114289577A - Multi-edge-angle automatic forming die and using method thereof - Google Patents
Multi-edge-angle automatic forming die and using method thereof Download PDFInfo
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- CN114289577A CN114289577A CN202111666222.3A CN202111666222A CN114289577A CN 114289577 A CN114289577 A CN 114289577A CN 202111666222 A CN202111666222 A CN 202111666222A CN 114289577 A CN114289577 A CN 114289577A
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Abstract
The invention discloses an automatic multi-edge-angle forming die and a using method thereof, and belongs to the technical field of bending dies. According to the invention, the bottom of an upper die body is provided with a material ejecting cavity, two sides of the material ejecting cavity are provided with stamping ends, a material ejecting block and a power ejecting module are arranged in the material ejecting cavity, and the top end of the material ejecting block is connected with the material ejecting module; the lower die body is internally provided with a movable cavity matched with the bottom of the upper die body, a discharging block and a discharging module are installed in the movable cavity, the bottom end of the discharging block is connected with the discharging module, a protruding section is arranged at the top of the discharging block, horizontal attaching sections are symmetrically arranged on two sides of the bottom of the protruding section, and the discharging block moves up and down along the height direction under the telescopic action of the discharging module. Aiming at the technical problems in the prior art, the invention aims to provide the automatic multi-edge-angle forming die and the use method thereof, which can be used for bending the cap-shaped sheet metal part at one time, ensuring the surface quality and the forming precision of the formed part and reducing the difficulty in unloading the processed part.
Description
Technical Field
The invention relates to the technical field of bending dies, in particular to an automatic multi-edge-angle forming die and a using method thereof.
Background
The sheet metal is a comprehensive cold processing technology aiming at the metal sheet, comprising shearing, cutting, compounding, folding, welding, riveting, splicing, forming and the like, and has the remarkable characteristic that the thickness of the same part is consistent. The metal plate has the advantages of light weight, high strength, conductivity, low cost, good performance and the like, and is widely applied to the fields of electronic appliances, communication, automobile industry, medical appliances and the like.
The demand of sheet metal parts of a hat-shaped structure is increased year by year, and a precision bending die is used as key equipment of a sheet metal structure part processing technology, so that no national standard or industrial standard exists. Thereby to the sheet metal component of cap type structure adopt to bend many times to accomplish the processing to the cap type work piece in the trade, comparatively take a lot of trouble and labouriously, and the precision is not enough, perhaps adopts forward extrusion, but because the sheet metal component of cap type structure is usually thinner, hardly supplies, the risk of easy rupture appears. Therefore, the multi-edge automatic forming die is urgently needed to be designed, the processing of the sheet metal part with the hat-shaped structure can be completed at one time, the processing precision is improved, and the unloading difficulty of the processed workpiece is reduced.
Through retrieval, a large number of patents have been published about bending dies, such as chinese patent application No.: 2017109599125, the name of invention creation is: the application discloses a U-shaped bending device, which comprises a base; a die groove is formed in the base; a U-shaped female die is arranged in the die groove; two sides of the U-shaped female die are fixed through fixing clamping blocks, and a buffer spring is arranged between the bottom of the U-shaped female die and the die groove; the upper end of the U-shaped female die is provided with a U-shaped male die matched with the U-shaped female die; the U-shaped male die is controlled by a stamping cylinder; the stamping cylinder is connected with the base through a fixing plate; according to the scheme of the invention, the die groove is formed in the base, the U-shaped female die is arranged in the die groove, the U-shaped male die matched with the U-shaped female die is arranged in the die groove, and the die groove is controlled by the stamping cylinder, so that the production efficiency can be greatly improved in production, the qualification rate of products is further improved, and the production requirements are met.
Also as in chinese patent application No.: 2013104131820, the name of invention creation is: the application discloses a method for progressively bending and forming a hat-shaped part, which is used for completing the forming of a complex hat-shaped part with multiple sections of circular arcs through the cooperation of simple dies and a plate bending machine: unfolding each section of circular arc of the multi-section circular arc complex hat-shaped part into a flat plate to determine the blank size of the flat plate, establishing a three-dimensional model according to the blank size, and dividing the area by taking the circular arc as a reference. Numerical simulation is carried out on the forming process of the complex hat-shaped part with multiple sections of circular arcs, the circular arcs on two sides are bent gradually, then the circular arc in the middle is bent, finally the boundary of each section of area is bent, and the feeding amount of the plate and the punch pressing amount of each pass in the bending process are determined according to the simulation result.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the technical problems in the prior art, the invention aims to provide the automatic multi-edge-angle forming die and the use method thereof, which can be used for bending the cap-shaped sheet metal part at one time, keeping the thicknesses of all parts of the formed cap-shaped part consistent, ensuring the surface quality and the forming precision of the formed part and reducing the difficulty in unloading the processed part.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the automatic multi-edge-angle forming die comprises an upper die and a lower die which are matched for use, wherein the upper die comprises an upper die body, the bottom of the upper die body is provided with a material ejecting cavity in a rectangular structure, stamping ends are symmetrically arranged on two sides of the material ejecting cavity, a material ejecting block and a power jacking module are sequentially arranged in the material ejecting cavity from bottom to top, the top end of the material ejecting block is connected with the material ejecting module, and the material ejecting block moves up and down along the height direction under the telescopic action of the material ejecting module; the lower mould includes the lower mould body, this internal division of lower mould has the movable chamber of cooperating with last mould body bottom, install unloading piece and the module of unloading in proper order from last to down in the movable chamber, wherein the bottom of unloading the piece links to each other with the module of unloading, the top of unloading the piece is equipped with the protruding section with liftout chamber matched with, the bottom bilateral symmetry of protruding section is equipped with the horizontal laminating section of mutually supporting with both sides punching press end, and the piece of unloading reciprocates along the direction of height under the concertina movement of the module of unloading, during the compound die, go up mould punching press end cooperation and insert the movable intracavity, it forms many edges and corners bending position to cooperate the piece of unloading again and the piece of unloading.
As a further improvement of the invention, the movable cavity comprises a processing cavity, a discharging cavity and a power cavity which are sequentially arranged from top to bottom, wherein a discharging block is arranged in the discharging cavity, the top end of the discharging block extends into the processing cavity, the bottom end of the discharging block is connected with the discharging module, and the discharging module is arranged in the power cavity.
As a further improvement of the invention, the top of the lower die body is provided with limiting parts which are symmetrically and inwards arranged, each limiting part comprises a horizontally extending supporting section, a limiting section which vertically extends downwards is arranged on the inner side of the supporting section, an avoiding section which extends inwards and downwards is arranged at the bottom of the limiting section, and the distance between the limiting sections on two sides is greater than the sum of the width of the ejection cavity and the width of the stamping ends on two sides.
As a further improvement of the invention, the discharging module comprises a fixing part and a mounting sleeve which are arranged in the power cavity from bottom to top in sequence, a lower return spring which extends vertically is arranged in the mounting sleeve, and the top of the lower return spring extends into the discharging cavity and is connected with the discharging block.
As a further improvement of the invention, the discharging modules are a pair and are symmetrically distributed on two sides of the bottom of the discharging block.
As a further improvement of the invention, the mounting sleeve is connected to the lower die body by horizontally arranged fastening bolts.
As a further improvement of the invention, the height of the material ejecting cavity is the sum of the height of the material ejecting block and the height of the workpiece, and the width of the material ejecting cavity is consistent with the width of the top of the workpiece.
As a further improvement of the invention, the ejection module comprises an upper return spring which is vertically extended, the bottom end of the upper return spring is connected with the top end of the ejection block, and the top end of the upper return spring is connected with the top wall of the ejection cavity.
A use method of a multi-edge angle automatic forming die comprises the following steps:
A. die filling, namely fixing the bottom of the lower die body on a bending machine base, and fixing the top of the upper die body in a bending machine clamping device;
B. aligning the upper die body to the movable cavity of the lower die body, and placing the plate blank on the upper surface of the lower die body to enable the bottom of the plate blank to be in contact with the limiting parts on two sides of the top of the lower die body;
C. the upper die body is pushed by the power of the bending machine to rapidly descend until the upper die body is contacted with the plate blank, and the punching ends on two sides of the bottom of the upper die body start to feed in, so that the plate blank is bent;
D. along with the working in of the stamping end, the unloading block downwards extrudes the unloading module until the unloading block does not continuously move downwards, and the plate blank preliminarily forms a preliminary piece in a U-shaped structure;
E. with the continuous working feed of the stamping end, the ejection block upwards extrudes the ejection module due to the blocking of the convex section at the top of the unloading block until the ejection block does not continuously move upwards any more, and the primary part forms a workpiece in a cap-shaped structure under the continuous working feed of the stamping end;
F. stopping the work, keeping the pressure for 30 seconds, quickly returning the upper die body, and finishing the machining of the cap-shaped structure workpiece.
As a further improvement of the invention, in the process of returning the upper die body in the step F, the ejection block returns upwards along with the stamping end under the action of the resilience force of the ejection module, and the unloading block moves upwards under the action of the resilience force of the unloading module, so that the workpiece is automatically ejected.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) according to the multi-edge-angle automatic forming die, the top end of the material ejecting block is connected with the material ejecting module, the material ejecting block moves up and down along the height direction under the telescopic action of the material ejecting module, and the material ejecting module can effectively slow down the up-and-down movement amplitude of the material ejecting block, so that the surface abrasion of a workpiece is avoided in the machining process, and the bending precision can be effectively improved.
(2) According to the multi-edge-angle automatic forming die, the discharging block moves up and down along the height direction under the telescopic action of the discharging module, so that the stability of a workpiece in the machining process can be effectively guaranteed, the workpiece is not easy to deform, the workpiece can rebound upwards after being machined, the automatic demolding of the workpiece is realized, and the problem of difficulty in discharging the workpiece is effectively solved.
(3) According to the multi-edge automatic forming die, under the working feeding effect of the stamping end, the material ejecting cavity is matched with the discharging block, a workpiece with a cap-shaped structure can be conveniently formed at one time, the processing precision is high, and the die is convenient to demould.
(4) According to the application method of the multi-edge automatic forming die, during die assembly, the stamping end of the upper die is inserted into the movable cavity in a matched mode, and then the multi-edge bending position is formed by matching the material pushing block and the material discharging block. When the stamping end is driven by the bending machine to advance downwards together until the stamping end and the bottom of the ejection block contact the surface of the plate blank to be processed, the stamping end continues to advance downwards, the ejection block upwards extrudes the ejection module at the moment, the ejection module is matched with the lower die to extrude the plate blank into the movable cavity of the lower die, a primary part with a U-shaped structure is preliminarily formed, when the stamping end continues to advance downwards, the ejection block can be downwards extruded, two side walls of a U-shaped opening of the primary part are downwards bent to form a cap-shaped workpiece to be manufactured, the whole bending processing process is smooth, the bending processing of the cap-shaped workpiece can be finished at one time, the repeated bending processing is avoided, time and labor are saved, the thicknesses of all parts of the formed cap-shaped workpiece are kept consistent, the surface quality and the forming precision of the cap-shaped workpiece are ensured, secondary repair at a later stage is not needed, and the difficulty in unloading of the processed workpiece is reduced, is convenient for demoulding.
Drawings
FIG. 1 is a schematic structural view of a mold for machining a workpiece according to the present invention;
FIG. 2 is a schematic structural view of a mold for preliminary processing of a workpiece according to the present invention;
FIG. 3 is a schematic structural diagram of a mold after a workpiece is machined according to the present invention;
FIG. 4 is a schematic structural view of an upper mold of the present invention;
FIG. 5 is a schematic structural view of a lower mold of the present invention;
FIG. 6 is a schematic view of the structure of the unloader block of the present invention;
fig. 7 is a schematic view of the structure of a workpiece processed in the present invention.
The reference numerals in the schematic drawings illustrate:
100. an upper die; 110. an upper die body; 111. punching the end; 120. a clamping part; 130. a material ejection block; 140. a material ejection cavity; 150. an upper return spring; 200. a lower die; 210. a mold body; 220. a limiting part; 221. a support section; 222. a limiting section; 223. an avoidance section; 230. a movable cavity; 231. a processing cavity; 232. a discharge chamber; 233. a power cavity; 240. a fixed part; 250. installing a sleeve; 260. a lower return spring; 270. fastening a bolt; 280. unloading the material block; 281. a convex section; 282. a horizontal attaching section; 300. a slab; 310. preliminary parts; 320. and (5) a workpiece.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be further described with reference to the following examples.
Example 1
With reference to fig. 1 to 7, the multi-corner automatic forming die of the present invention includes an upper die 100 and a lower die 200, which are used in cooperation, wherein the upper die 100 includes an upper die body 110, a clamping portion 120 for mounting on a bending machine is disposed at the top of the upper die body 110, a rectangular ejection cavity 140 is disposed at the bottom of the upper die body 110, and the width of the ejection cavity 140 is consistent with the width of the convex surface of a finally formed cap-shaped workpiece 320, so as to facilitate one-time forming of the cap-shaped workpiece 320. In this embodiment, the punching ends 111 are symmetrically disposed on two sides of the material ejecting cavity 140, and when the material ejecting device is used, the plate blank 300 to be processed is extruded. Wherein, the material ejecting cavity 140 is provided with a material ejecting block 130 and a power jacking module in sequence from bottom to top, the bottom of the material ejecting block 130 is a horizontal plane and is kept flush with the bottom of the stamping end 111. The top of liftout piece 130 links to each other with the liftout module, and liftout piece 130 reciprocates along the direction of height under the concertina work of liftout module, and the liftout module can effectively slow down the range of liftout piece 130 up-and-down motion to guarantee can not cause surface wear to work piece 320 in the course of working, can effectively improve the precision of bending.
In this embodiment, the lower die 200 includes a lower die body 210, a movable cavity 230 matched with the bottom of the upper die body 110 is formed in the lower die body 210, a discharging block 280 and a discharging module are sequentially installed in the movable cavity 230 from top to bottom, wherein the bottom end of the discharging block 280 is connected with the discharging module, a protruding section 281 matched with the material ejecting cavity 140 is arranged at the top of the discharging block 280, and the protruding section 281 is used for supporting below the slab 300 to be processed, so that the processing precision is effectively guaranteed. Horizontal attaching sections 282 matched with the punching ends 111 on the two sides are symmetrically arranged on the two sides of the bottom of the protruding section 281, and the length of the bottom of the discharging block 280 is slightly smaller than the width of the movable cavity 230, so that the discharging block can freely move up and down in the movable cavity. The unloading block 280 moves up and down along the height direction under the telescopic action of the unloading module, so that the stability of the workpiece 320 in the machining process can be effectively guaranteed, the workpiece is not easy to deform, the workpiece can rebound upwards after being machined, the automatic demoulding of the workpiece 320 is realized, and the problem of difficulty in unloading the workpiece 320 is effectively solved.
In the embodiment, during the mold closing, the upper mold stamping end 111 is inserted into the movable cavity 230 in a matching manner, and then the ejector block 130 and the discharging block 280 are matched to form a multi-edge bending position. When the stamping end 111 is driven by the bending machine to advance downwards together until the stamping end 111 and the bottom of the material ejecting block 130 contact the surface of the plate blank 300 to be processed, the stamping end 111 continues to advance downwards, the material ejecting block 130 extrudes the material ejecting module upwards at the moment, the material ejecting block is matched with the lower die 200 to extrude the plate blank 300 into the movable cavity 230 of the lower die 200, a primary part 310 with a U-shaped structure is formed preliminarily, when the stamping end 111 continues to advance downwards, the material discharging block 280 can be extruded downwards, two side walls of a U-shaped opening of the primary part 310 are bent downwards to form the cap-shaped workpiece 320 to be manufactured, the whole bending processing process is smooth, the bending processing of the cap-shaped workpiece 320 can be finished at one time, the multiple bending processing is avoided, time and labor are saved, the thicknesses of all parts of the formed cap-shaped workpiece 320 are kept consistent, the surface quality and the forming precision of the cap-shaped workpiece 320 are ensured, and secondary repair is not needed in the later period, and the difficulty in unloading the workpiece 320 after the machining is finished is reduced, and the demoulding is facilitated.
In this embodiment, the movable cavity 230 includes a processing cavity 231, a discharging cavity 232 and a power cavity 233 sequentially arranged from top to bottom, wherein a discharging block 280 is installed in the discharging cavity 232, the top end of the discharging block 280 extends into the processing cavity 231, the bottom end of the discharging block 280 is connected with a discharging module, and the discharging module is arranged in the power cavity 233. Wherein the module of unloading is including establishing in power chamber 233 from the bottom up and has set gradually fixed part 240 and installation sleeve 250, install the lower reset spring 260 that vertical extension set up in the installation sleeve 250, the top of lower reset spring 260 stretches into unloading chamber 232 and links to each other with the piece 280 of unloading. The installation sleeve 250 not only can facilitate the installation of the lower return spring 260, but also can limit the lower return spring 260 in the left-right direction, thereby ensuring the stability of the discharging rebound movement. The discharging modules are a pair and symmetrically distributed on two sides of the bottom of the discharging block 280, so that the supporting effect on the discharging block 280 and the stability of discharging rebound movement are further effectively guaranteed. Wherein, the mounting sleeve 250 is connected with the side wall of the lower die body 210 through the horizontally arranged fastening bolt 270, and the stability of the mounting sleeve 250 is effectively improved.
In this embodiment, the top of the lower die body 210 is a symmetrical inward-arranged limiting portion 220, the limiting portion 220 includes a horizontally extending supporting section 221, the supporting section 221 is flush with the top surface of the discharging block 280 in the initial state, and supports the slab 300 together, thereby effectively ensuring the stability in the machining process. Wherein the inboard of support section 221 is equipped with perpendicular downwardly extending's spacing section 222, and spacing section 222 can effectively carry out spacing processing to the both sides of slab 300 in the in-process of punching end 111 extrusion slab 300 downwards, and the distance between the spacing section 222 of both sides keeps unanimous with preliminary part 310 width. The bottom of the limiting section 222 is provided with an avoiding section 223 which extends inwards and downwards in a downward inclined mode, the distance between the limiting sections 222 on the two sides is larger than the sum of the width of the material ejection cavity 140 and the width of the stamping ends 111 on the two sides, and the stamping ends 111 can continue to work downwards in the movable cavity 230 conveniently to process the plate blank 300.
The liftout module in this embodiment includes the last reset spring 150 of vertical extension setting, and the bottom of going up reset spring 150 links to each other with liftout piece 130 top, goes up the reset spring 150 top and links to each other with liftout chamber 140 roof. The height of the material ejecting cavity 140 is the sum of the height of the material ejecting block 130 and the height of the workpiece 320, the width of the material ejecting cavity 140 is consistent with the width of the top of the workpiece 320, the machined cap-shaped workpiece 320 can be automatically ejected out of the material ejecting cavity 140 through the upper return spring 150, the cap-shaped workpiece 320 cannot be damaged, and the service life of the upper die 100 is prolonged. In the embodiment, under the working feeding action of the stamping end 111, the material ejecting cavity 140 and the material discharging block 280 are matched with each other, so that the workpiece 320 with a cap-shaped structure can be conveniently formed at one time, the processing precision is high, and the demoulding is convenient.
A use method of a multi-edge angle automatic forming die comprises the following steps:
A. die filling, namely fixing the bottom of the lower die body 210 on a bending machine base and fixing the bottom through a nut, and fixing the top of the upper die body 110 in a bending machine clamping device;
B. aligning the upper die body 110 with the movable cavity 230 of the lower die body 210, and placing the slab 300 on the upper surface of the lower die body 210 such that the bottom of the slab 300 contacts the limiting parts 220 on both sides of the top of the lower die body 210 and the top surface of the discharging block 280;
C. the upper die body 110 is pushed by the bending machine to rapidly descend until the upper die body is in contact with the plate blank 300, the speed is reduced, the upper die body is pushed at a constant speed, the punching ends 111 on two sides of the bottom of the upper die body 110 start to advance, and the plate blank 300 is bent;
D. with the working of the punching end 111, the plate blank 300 is extruded into the movable cavity 230, the discharging block 280 extrudes the discharging module downwards until the discharging block 280 does not move downwards any more, and the plate blank 300 initially forms a primary part 310 in a U-shaped structure;
E. with the continuous working of the punching end 111, the ejector block 130 extrudes the ejector module upwards due to the blocking of the convex section 281 at the top of the stripper block 280 until the ejector block 130 does not move upwards any longer, and bends the two side walls of the U-shaped opening of the preliminary member 310 downwards, and the preliminary member 310 forms a workpiece 320 in a hat-shaped structure under the continuous working of the punching end 111;
F. and stopping the working process, keeping the pressure for 30 seconds, quickly withdrawing the upper die body 110, and finishing the machining of the cap-shaped structure workpiece 320. In the retraction process of the upper die body 110, the ejection block 130 retracts upwards along with the stamping end 111 under the action of the resilience of the ejection module, and the discharge block 280 moves upwards under the action of the resilience of the discharge module, so that the workpiece 320 is automatically ejected. When the mold is used for processing and bending the cap-shaped workpiece 320, the workpiece 320 has high processing precision, good surface quality, no damage, difficult breakage and convenient thickness control.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a many edges and corners automatic molding mould, includes mould (100) and lower mould (200) that the cooperation was used, its characterized in that: the upper die (100) comprises an upper die body (110), a material ejecting cavity (140) in a rectangular structure is formed in the bottom of the upper die body (110), stamping ends (111) are symmetrically arranged on two sides of the material ejecting cavity (140), a material ejecting block (130) and a power jacking module are sequentially arranged in the material ejecting cavity (140) from bottom to top, the top end of the material ejecting block (130) is connected with the material ejecting module, and the material ejecting block (130) moves up and down along the height direction under the telescopic action of the material ejecting module; the lower die (200) comprises a lower die body (210), a movable cavity (230) matched with the bottom of the upper die body (110) is formed in the lower die body (210), a discharging block (280) and a discharging module are sequentially installed in the movable cavity (230) from top to bottom, the bottom end of the discharging block (280) is connected with the discharging module, a protruding section (281) matched with the material ejection cavity (140) is arranged at the top of the discharging block (280), horizontal attaching sections (282) matched with the punching ends (111) on two sides are symmetrically arranged on two sides of the bottom of the protruding section (281), the discharging block (280) moves up and down along the height direction under the telescopic action of the discharging module, the punching ends (111) of the upper die are inserted into the movable cavity (230) in a matched mode during die assembly, and then the discharging block (130) and the discharging block (280) are matched to form a multi-edge bending position.
2. The multi-corner automatic molding die according to claim 1, wherein: the movable cavity (230) comprises a processing cavity (231), a discharging cavity (232) and a power cavity (233) which are sequentially arranged from top to bottom, wherein a discharging block (280) is arranged in the discharging cavity (232), the top end of the discharging block (280) extends into the processing cavity (231), the bottom end of the discharging block (280) is connected with a discharging module, and the discharging module is arranged in the power cavity (233).
3. The multi-corner automatic molding die according to claim 2, wherein: the top of lower mould body (210) is spacing portion (220) that the symmetry inwards set up, and spacing portion (220) are including the support section (221) of horizontal extension, and the inboard of support section (221) is equipped with perpendicular downwardly extending spacing section (222), and the bottom of spacing section (222) is provided with dodge section (223) that inwards slopes downwards to extend, and the distance between spacing section (222) of both sides is greater than the sum of top material chamber (140) width and both sides punching end (111) width.
4. The multi-corner automatic molding die according to claim 3, wherein: the discharging module comprises a fixing part (240) and a mounting sleeve (250) which are arranged in a power cavity (233) from bottom to top in sequence, a lower reset spring (260) which vertically extends is arranged in the mounting sleeve (250), and the top of the lower reset spring (260) stretches into the discharging cavity (232) and is connected with a discharging block (280).
5. The multi-corner automatic molding die according to claim 4, wherein: the discharging modules are a pair and are symmetrically distributed on two sides of the bottom of the discharging block (280).
6. The automatic multi-corner forming die of claim 5, wherein: the mounting sleeve (250) is connected with the lower die body (210) through a fastening bolt (270) which is horizontally arranged.
7. The automatic multi-corner forming die of claim 6, wherein: the height of the material ejecting cavity (140) is the sum of the height of the material ejecting block (130) and the height of the workpiece (320), and the width of the material ejecting cavity (140) is consistent with the width of the top of the workpiece (320).
8. The multi-corner automatic molding die according to claim 7, wherein: the material ejecting module comprises an upper reset spring (150) which vertically extends, the bottom end of the upper reset spring (150) is connected with the top end of the material ejecting block (130), and the top end of the upper reset spring (150) is connected with the top wall of the material ejecting cavity (140).
9. The use method of the polygonal automatic molding die according to any one of claims 1 to 8, wherein: the method comprises the following steps:
A. die filling, namely fixing the bottom of a lower die body (210) on a bending machine base, and fixing the top of an upper die body (110) in a bending machine clamping device;
B. aligning the upper die body (110) to a movable cavity (230) of the lower die body (210), and placing the slab (300) on the upper surface of the lower die body (210) so that the bottom of the slab (300) is in contact with limiting parts (220) on two sides of the top of the lower die body (210);
C. the upper die body (110) is pushed by the power of the bending machine to rapidly descend until the upper die body is contacted with the plate blank (300), the punching ends (111) on two sides of the bottom of the upper die body (110) start to advance, and the plate blank (300) is bent;
D. with the working of the punching end (111), the unloading block (280) downwards extrudes the unloading module until the unloading block (280) does not continuously move downwards any more, and the plate blank (300) initially forms an initial part (310) in a U-shaped structure;
E. with the continuous working of the punching end (111), the ejector block (130) upwards extrudes the ejector module due to the blocking of the top convex section (281) of the discharging block (280) until the ejector block (130) does not move upwards any more, and the primary part (310) forms a workpiece (320) in a hat-shaped structure under the continuous working of the punching end (111);
F. stopping the working process, keeping the pressure for 30 seconds, quickly withdrawing the upper die body (110), and finishing the machining of the cap-shaped structure workpiece (320).
10. The method of using the multi-corner automatic molding die according to claim 9, wherein: and F, in the retreating process of the upper die body (110), the ejection block (130) retreats upwards along with the stamping end (111) under the action of the resilience force of the ejection module, and the unloading block (280) moves upwards under the action of the resilience force of the unloading module, so that the workpiece (320) is automatically ejected.
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| CN202111666222.3A CN114289577A (en) | 2021-12-31 | 2021-12-31 | Multi-edge-angle automatic forming die and using method thereof |
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| CN202111666222.3A CN114289577A (en) | 2021-12-31 | 2021-12-31 | Multi-edge-angle automatic forming die and using method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005095937A (en) * | 2003-09-25 | 2005-04-14 | Toyota Auto Body Co Ltd | Press die and pressing method |
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| CN213997295U (en) * | 2020-12-23 | 2021-08-20 | 安徽力源数控刃模具制造有限公司 | Indentation-free bending die for one-step forming of multi-section folding angles |
| CN214108378U (en) * | 2020-12-23 | 2021-09-03 | 安徽力源数控刃模具制造有限公司 | One shot forming multistage right angled no indentation mould of bending |
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| JP2005095937A (en) * | 2003-09-25 | 2005-04-14 | Toyota Auto Body Co Ltd | Press die and pressing method |
| CN207494336U (en) * | 2017-09-26 | 2018-06-15 | 芳源企业（上海）有限公司 | Shape of chinese word Ji Bending Mould |
| CN107838296A (en) * | 2017-12-07 | 2018-03-27 | 安徽力源数控刃模具制造有限公司 | A kind of hinge-type interconnection part one-time-shaped mould and its application method |
| CN210497989U (en) * | 2019-08-16 | 2020-05-12 | 安徽力源数控刃模具制造有限公司 | Die for machining large-scale vehicle body sheet metal part |
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| CN213997295U (en) * | 2020-12-23 | 2021-08-20 | 安徽力源数控刃模具制造有限公司 | Indentation-free bending die for one-step forming of multi-section folding angles |
| CN214108378U (en) * | 2020-12-23 | 2021-09-03 | 安徽力源数控刃模具制造有限公司 | One shot forming multistage right angled no indentation mould of bending |
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