CN109482698B - Automatic stamping forming tool and processing method for folding pin shaft barrel for press - Google Patents
Automatic stamping forming tool and processing method for folding pin shaft barrel for press Download PDFInfo
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- CN109482698B CN109482698B CN201910009734.9A CN201910009734A CN109482698B CN 109482698 B CN109482698 B CN 109482698B CN 201910009734 A CN201910009734 A CN 201910009734A CN 109482698 B CN109482698 B CN 109482698B
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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
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
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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
- 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
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/13—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by linearly moving tables
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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Abstract
The invention belongs to the technical field of hardware equipment, and relates to an automatic punch forming tool and a machining method for a folding pin shaft barrel for a press. The material warehouse cylinder pushes the folded blank to translate backwards to be attached to the vertical feeding part, the feeding cylinder is filled with pressure air, the material pushing tongue plate pushes the folded blank to be delivered from the warehouse station to translate rightwards to the stamping station, the upper die is punched and formed to leave, the material returning cylinder is filled with pressure air, and the material pushing tongue plate continues to push the folded finished product to leave the lower die. The spring compresses the pressing pin, and the spherical surface of the pressing pin compresses the plane part of the hinge blank of the punching station. The invention has the beneficial effects that: the automatic feeding and demolding device has the advantages that the automatic feeding and demolding can be realized, the efficiency is high, the personnel stand at a remote place for operation, the hands do not need to be stretched to contact with the blank for folding, and the danger is small.
Description
Technical Field
The invention belongs to the technical field of hardware equipment, relates to hinge machining equipment and a hinge machining method, and particularly relates to a folding pin shaft barrel automatic punch forming tool for a press and a folding pin shaft barrel machining method.
Background
Hinge that little five metals technical field used, including two fold paper and a round pin axle, wherein first fold paper and roll up into round pin axle tube by two limits end below one "n" font steel sheet and form, the second is folded paper and is rolled up into round pin axle tube by one "T" font steel sheet's one limit end below and forms, and the round pin axle penetrates two round pin axle tubes of folding paper and constitutes the hinge constitution hinge.
The conventional manufacturing process is described by taking the first hinge as an example.
The folding blank is finished on a punch press, and is punched into an n shape on a steel plate master batch at one time, and the two edges at the lowest part of the plane part are pressed into 1/8 circular arc parts at the tail ends.
The rolling of the two end edges into pin cylinders is done on a press. The tooling die of the winding pin shaft cylinder comprises an upper die and a lower die, the bottom surface of the lower die is fixedly connected with a workbench, a forward vertical surface is arranged on the lower die, an arc groove is formed in the lower portion of the vertical surface, the arc groove is 1/2 arcs, the opening of the arc groove faces upwards, and the backward edge of the arc groove is tangent to the lower edge of the vertical surface. The upper part of the upper die is fixedly connected with a working shaft handle of the press, the upper die is plate-shaped, and the backward plane of the upper die is tightly leaned against the vertical surface of the lower die; manually placing the folding blank on the lower die, enabling the arc part of the folding blank to face forwards, placing the arc part of the folding blank in the arc groove, enabling the plane part of the folding blank to be attached to the vertical surface, enabling the upper die to move downwards in a translation mode, punching the uppermost edge of the folding blank by the lower edge of the upper die, and continuously developing the arc part of the folding blank in the arc groove to be rolled into a complete pin shaft cylinder.
The danger of manually placing the folding blank is very high, one is careless, the hand has not been left, the upper die is punched down, great damage can be caused to the hand, the more serious the hand is disabled, the higher the working efficiency is, the more fatigue is caused to the worker, and the more the possibility of causing damage is. The work efficiency of feeding by manpower is also lower, and the fatigue work of workers results in lower efficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the automatic punch forming tool and the processing method for the folding pin shaft barrel for the press, which can automatically feed and withdraw a die, have high efficiency and low risk.
The invention is realized by the following technical scheme:
an automatic punch forming tool for a folding pin shaft cylinder for a press comprises an upper die and a lower die; the bottom of the lower die is fixedly connected with the workbench, a forward vertical surface is arranged on the lower die, and an arc groove is arranged at the lower part of the vertical surface; the upper part of the upper die is fixedly connected with a working shaft handle of the press machine, and the upper die is plate-shaped;
the device is characterized by also comprising a material warehouse component, a material pushing tongue plate, a feeding cylinder and a material returning cylinder;
the vertical surface of the lower die is divided into a left part and a right part, the left side is a vertical surface feeding part, the right side is a vertical surface punching part, the arc groove is divided into a left part and a right part, the left side is an arc groove feeding part, and the right side is an arc groove punching part; the arc groove punching part is an 1/2 arc, the opening of the arc groove punching part is upward, and the backward edge of the arc groove punching part is tangent to the lower edge of the vertical surface; the backward plane of the upper die is tightly leaned on the vertical plane stamping part of the lower die;
the material warehouse component comprises a material warehouse cylinder, a pressing plate and a material warehouse; the material warehouse is a cavity, and a material warehouse accommodating bin is arranged in the material warehouse; the material warehouse is provided with a material containing bin bottom plate, the material containing bin bottom plate is obliquely arranged, and the front end of the material containing bin bottom plate is high, and the rear end of the material containing bin bottom plate is low; the cross section of the material containing bin of the material bin is rectangular, a material bin cylinder mounting plate is arranged at the foremost end of the material bin, a material bin feeding hole is formed in the upper portion of the front end of the material bin, a material bin discharging hole is formed in the rear end of the material bin, and the front end face of the material bin discharging hole is in the vertical direction; the front end face of the material warehouse discharge port is close to the vertical face feeding part, a vertical gap is arranged between the end face of the material warehouse discharge port and the vertical face feeding part, and the width of the vertical gap is larger than one time of the thickness of the plane part and smaller than two times of the thickness of the plane part; the lower edge of the discharge port of the material warehouse is provided with a chamfer, an arc gap is formed between the chamfer and the feeding part of the arc groove, and the vertical gap and the arc gap form a continuous gap which can allow a folding blank to pass through the gap; the material warehouse cylinder is a cylinder with a guide rod, and comprises a material warehouse cylinder body and a material warehouse cylinder piston rod end plate, the material warehouse cylinder body is fixedly connected to a material warehouse cylinder mounting plate, and the material warehouse cylinder piston rod end plate makes piston motion in a direction parallel to a material containing bin bottom plate relative to the material warehouse cylinder body; the pressing plate is fixedly connected to the tail end plate of the piston rod of the cylinder of the material warehouse and is provided with a pressing plate pressing surface facing backwards, and the pressing plate pressing surface is parallel to the vertical surface feeding part; the material warehouse is fixedly connected with the lower die;
in the material warehouse, the plane part of the folding blank of the station to be delivered faces upwards and backwards and is attached to the vertical feeding part, the arc part of the folding blank of the station to be delivered faces downwards and forwards and is attached to the arc groove feeding part, the second folding blank is placed in the same direction, the plane part of the second folding blank faces upwards and backwards and is attached to the forwards plane of the folding blank of the station to be delivered, the arc part of the second folding blank faces downwards and forwards, and the lowest edge line is leaned against the bottom plate of the material containing bin; a plurality of folding blanks are sequentially placed in the material warehouse in the same direction, the plane part of the previous folding blank faces upwards and backwards and is attached to the forward plane of the plane part of the next folding blank, the arc parts of the folding blanks face downwards and forwards, the front end of the bottom plate of the material containing bin is high, the rear end of the bottom plate of the material containing bin is low, the arc part of the adjacent previous folding blank can avoid the arc part of the next folding blank, a gap is reserved between the arc parts of the two adjacent folding blanks, the adjacent two folding blanks are not contacted and interfered with each other, so that the plane parts can be completely attached together without gaps, and the folding blanks can be accurately positioned;
the feeding cylinder comprises a feeding cylinder body and a feeding cylinder piston rod end plate; the material returning cylinder comprises a material returning cylinder body and a material returning cylinder piston rod end plate; the feeding cylinder and the material returning cylinder are both provided with guide rods; the tail end plate of the piston rod of the material returning cylinder is fixedly connected with the workbench, the tail part of the feeding cylinder body is fixedly connected with the tail part of the material returning cylinder body, and the tail end plate of the piston rod of the feeding cylinder is fixedly connected with the material pushing tongue plate; the feeding cylinder body is arranged on the right, the returning cylinder body is arranged on the left, the end plate of the piston rod of the returning cylinder extends towards the left, and the end plate of the piston rod of the feeding cylinder extends towards the right; the pushing tongue plate is arranged in the vertical direction and is in clearance fit with the vertical gap; the thickness of the pushing tongue plate is not more than that of the plane part of the folding blank.
The automatic stamping forming tool for the folding pin shaft cylinder for the press machine further comprises a pressing component; the pressing assembly comprises a pressing guide sleeve, a pressing spring and a pressing pin; compress tightly the uide bushing, compress tightly the guide hole sliding fit of round pin and compression guide bushing, compression spring's front end compresses tightly the uide bushing, compression spring's rear end compresses tightly the shaft shoulder on the round pin, the rear end of compressing tightly the round pin is spherical, the rear end of compressing tightly the spherical face of round pin compresses tightly facade punching press portion, then compress tightly the blank of folding paper when facade punching press portion has the blank of folding paper, make the blank of folding paper laminating on facade punching press portion, effectively prevent that the blank of folding paper from empting or being in other incorrect positions.
The direction control valve used by the material warehouse cylinder preferably adopts an intermediate pressure relief type three-position five-way electromagnetic valve, and the intermediate pressure relief type three-position five-way electromagnetic valve comprises an intermediate pressure relief type middle position and comprises an output port A, an output port B, an input port P, an exhaust port R and an exhaust port T; two working ports corresponding to the rod cavity and the rodless cavity of the material warehouse cylinder are respectively communicated with the output port A and the output port B through pipelines. And a two-position four-way solenoid valve or other types of three-position five-way valves can also be used, which is not as convenient to use as the middle pressure relief type three-position five-way solenoid valve.
The intermediate pressure relief type three-position five-way electromagnetic valve is an intermediate pressure relief type three-position five-way valve which is described in a fifth edition mechanical design manual 5, 23 rd to 241 th page published by a chemical industry publishing company and compiled by Dada pioneer, and the control mode of the valve is an electric control type.
The working process of the present invention is as follows.
0) Taking a folding blank, wherein the plane part of the folding blank is upright, faces backwards and the circular arc part faces downwards and faces forwards, putting the folding blank into a material warehouse through a material warehouse feeding port, and enabling the lowest part of the folding blank to fall on a material containing warehouse bottom plate. Because hold the feed bin bottom plate and set up that the slope sets up, hold the front end height, the rear end of feed bin bottom plate low, the arc portion of the blank of folding paper of adjacent preceding can avoid the arc portion of the blank of folding paper of back, it is gapped between the arc portion of two adjacent blanks of folding paper, mutual contactless, noninterference, so the blank of folding paper and wait to leave warehouse station fold paper plane portion of blank and all paste together one by one, the accurate positioning of being convenient for.
1) The middle pressure relief type three-position five-way electromagnetic valve is reversed to enable the material storage cylinder to be filled with pressure air, the material storage cylinder drives the pressing plate to push the blank of folded paper towards the rear lower part, the pressing plate pressing surface presses the blank of folded paper, and the blank of folded paper and the plane part of the blank of folded paper to be taken out of the storage station are attached together in a one-to-one mode. And then the middle pressure relief type three-position five-way electromagnetic valve returns to the middle position, the tail end plate of the piston rod of the material warehouse cylinder becomes a free state without force application, namely, the tail end plate of the piston rod of the material warehouse cylinder can be pushed to move horizontally in the material warehouse cylinder by lightly pushing with a hand.
2) The feeding cylinder is filled with pressure air, the end plate of the piston rod of the feeding cylinder drives the pushing tongue plate to translate rightwards through the vertical gap, the pushing tongue plate pushes the folded blanks of the stations to be delivered to the warehouse to translate rightwards together, the folded blanks of the stations to be delivered to the warehouse are pushed to the right through the continuous gap formed by the vertical gap and the circular arc gap, the blank is not interfered with the lower die and the warehouse, the end plate of the piston rod of the cylinder piston rod of the warehouse is in a free state without force application, the folded blanks of the stations to be delivered to the warehouse are not subjected to the pressure of the adjacent folded blanks, and only small friction force exists between the contact surfaces and the vertical surface of the lower. Until the folding blank to be delivered from the warehouse station is pushed to the vertical surface punching part from the vertical surface feeding part, the folding blank is converted into the folding blank of the punching station, meanwhile, the circular arc part of the folding blank to be delivered from the warehouse station is also changed from the circular arc groove feeding part to the circular arc groove punching part, namely, the folding blank to be delivered from the warehouse station is changed into the folding blank of the punching station from the punching station. The plane portion of the blank of folding paper of punching press station meets pressing pin, extrudees into from the spherical surface side of pressing pin rear end, and the spherical surface of pressing pin receives the extrusion then and moves forward and give way, and pressing pin overcomes pressure spring's thrust and translates forward along the uide bushing, and the spherical surface of pressing pin is forward to pressing down the plane portion of the blank of folding paper of punching press station, can prevent like this that the blank of folding paper of punching press station from empting or being in other incorrect positions.
3) And punching the upper die, punching the top of the folding blank of the punching station by the lower surface of the upper die, continuously curling the arc part at the lower part of the folding blank of the punching station in the arc groove punching part into a pin shaft cylinder, and converting the folding blank of the punching station into a folding finished product. The upper die is then translated upwardly away.
4) The material returning cylinder is filled with pressure air, the end plate of the piston rod of the material returning cylinder is fixed, the material returning cylinder body translates rightwards, the feeding cylinder and the material pushing tongue plate are pushed to translate rightwards continuously until the material pushing tongue plate pushes the folded paper finished product away from the lower die and falls into a turnover box behind.
5) The feeding cylinder and the material returning cylinder are simultaneously and reversely filled with pressure air to drive the material pushing tongue plate to horizontally move leftwards to return to the initial position.
6) The middle pressure relief type three-position five-way electromagnetic valve is reversed to enable the material warehouse cylinder to be filled with pressure air, the material warehouse cylinder drives the pressing plate to push the folded blank towards the rear lower part, the plane parts of the folded blank are attached together one by one, the folded blank closest to the vertical feeding part is attached to the vertical feeding part to be the folded blank of the station to be discharged from the warehouse, then the middle pressure relief type three-position five-way electromagnetic valve returns to the middle position, and the end plate of the piston rod of the material warehouse cylinder is changed into a free state. Finally, repeating the steps 2) to 5).
And (3) continuously repeating the steps 1) to 5), the folded blanks in the stock are punched and rolled into folded finished products one by one and transferred into a subsequent turnover box, so that the aims of automatic feeding and demolding, high-efficiency production of the folded finished products and reduction of operation safety are fulfilled.
The invention has the beneficial effects that: the automatic feeding and demolding device has the advantages that the automatic feeding and demolding can be realized, the efficiency is high, the personnel stand at a remote place for operation, the hands do not need to be stretched to contact with the blank for folding, and the danger is small.
Drawings
Fig. 1 is a schematic three-dimensional structure of a folded product 11;
FIG. 2 is a schematic three-dimensional structure of blank 12;
FIG. 3 is a schematic three-dimensional structure of an embodiment of the present invention;
FIG. 4 is a front view of an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4, an initial state of a duty cycle;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 7 is an enlarged partial view at D of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 4, an initial state of a duty cycle;
fig. 9 is a cross-sectional view taken along line a-a in fig. 4, in which the pushing tongue plate 4 pushes the blank 121 to the right to the punching station;
fig. 10 is a cross-sectional view taken along line C-C in fig. 4, in which the pushing tongue plate 4 pushes the blank 121 to the right to the punching station;
fig. 11 is a cross-sectional view taken along line C-C in fig. 4, with the lower surface of the upper die 22 pressing down on the top of the blank 123 of the punching station, after the blank 123 of the punching station has been converted into the folded product 11;
fig. 12 is a cross-sectional view taken along line a-a of fig. 4, in which the material-pushing tongue 4 continues to push the folded product 11 rightward to a state of being away from the lower die 21;
FIG. 13 is a schematic three-dimensional structure of the combination of the lower mold 21 and the magazine 33;
fig. 14 is a left side view of the combination of the lower die 21-the magazine 33, with the magazine 33 partially cut away;
fig. 15 is a three-dimensional structure diagram of the lower mold 21;
FIG. 16 is a schematic three-dimensional structure of the magazine 33;
FIG. 17 is a schematic three-dimensional view of the combination of the piston rod end plate 312 and the platen 32 of the cylinder of the magazine;
fig. 18 is a three-dimensional structure diagram of the combination of the end plate 52 of the piston rod of the feeding cylinder and the pushing tongue plate 4;
fig. 19 is a schematic diagram of the connection of the material reservoir cylinder 31 and the intermediate pressure relief type three-position five-way solenoid valve 8 through a pipeline;
shown in the figure: 11. folding the finished product; 111. a pintle barrel; 12. folding a blank; 121. a blank of the fold paper at the station to be delivered out of the warehouse; 122. a gap between adjacent circular arc portions; 123. a blank of a fold at a stamping station; 128. a planar portion; 129. a circular arc portion; 21. a lower die; 211. a facade feeding part; 212. a circular arc groove feeding part; 213. a vertical face stamping part; 214. an arc groove punching part; 22. an upper die; 23. a press machine guide mechanism; 24. a work table; 25. a working shaft handle; 3. a stock bin assembly; 31. a material storage cylinder; 311. a stock bin cylinder block; 312. a tail end plate of a piston rod of a material warehouse cylinder; 32. pressing a plate; 321. pressing surfaces of the pressing plates; 33. a material warehouse; 331. a material warehouse cylinder mounting plate; 332. a feed inlet of the material warehouse; 333. a material storage bin; 334. a bin floor; 335. a discharge port of the material warehouse; 2301. a vertical gap; 2302. a circular arc gap; 4. a tongue pushing plate; 5. a feed cylinder; 51. a feed cylinder block; 52. a tail end plate of a piston rod of the feeding cylinder; 6. a material returning cylinder; 61. a material returning cylinder body; 62. the material returning cylinder piston rod end plate; 7. a compression assembly; 71. compressing the guide sleeve; 72. a compression spring; 73. a hold down pin; 8. a middle pressure relief type three-position five-way electromagnetic valve; 81. a left position; 82. a middle position; 83. the right position; A. an output port A; B. an output port B; p. input port P; r, exhaust port R; t, an exhaust port T.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
example (b): see fig. 1-19.
An automatic punch forming tool for a folding pin shaft cylinder for a press comprises an upper die 22 and a lower die 21; the bottom of the lower die 21 is fixedly connected with the workbench 24, a forward vertical surface is arranged on the lower die 21, and an arc groove is arranged at the lower part of the vertical surface; the upper part of the upper die 22 is fixedly connected with a working shaft handle 25 of the press, and the upper die 22 is plate-shaped;
the device is characterized by also comprising a material warehouse component 3, a material pushing tongue plate 4, a feeding cylinder 5 and a material returning cylinder 6;
the vertical surface of the lower die 21 is divided into a left part and a right part, the left part is a vertical surface feeding part 211, the right part is a vertical surface punching part 213, the arc groove is divided into a left part and a right part, the left part is an arc groove feeding part 212, and the right part is an arc groove punching part 214; the arc groove punching part 214 is an 1/2 arc, the opening of the arc groove punching part 214 faces upwards, and the backward edge of the arc groove punching part 214 is tangent with the lower edge of the vertical surface; the rearward facing flat surface of the upper die 22 abuts against the elevation punch 213 of the lower die 21;
the material warehouse component 3 comprises a material warehouse cylinder 31, a pressing plate 32 and a material warehouse 33; the material warehouse 33 is a cavity, and a material warehouse accommodating bin 333 is arranged in the material warehouse 33; the material warehouse 33 is provided with a material containing bin bottom plate 334, the material containing bin bottom plate 334 is obliquely arranged, and the front end of the material containing bin bottom plate 334 is high, and the rear end of the material containing bin bottom plate 334 is low; the cross section of the material storage containing bin 333 is rectangular, the foremost end of the material storage 33 is provided with a material storage cylinder mounting plate 331, the upper part of the front end of the material storage 33 is provided with a material storage feeding hole 332, the rear end of the material storage 33 is provided with a material storage discharging hole 335, and the front end face of the material storage discharging hole 335 is in the vertical direction; the front end face of the material bin discharge hole 335 is close to the vertical face feeding part 211, a vertical gap 2301 is arranged between the end face of the material bin discharge hole 335 and the vertical face feeding part 211, and the width of the vertical gap 2301 is larger than one time of the thickness of the plane part 128 and smaller than two times of the thickness of the plane part 128; the lower edge of the material warehouse discharge hole 335 is provided with a chamfer, an arc gap 2302 is arranged between the chamfer and the arc groove feeding part 212, and the vertical gap 2301 and the arc gap 2302 form a continuous gap through which a folding blank 12 can pass; the material warehouse cylinder 31 is a cylinder with a guide rod, the material warehouse cylinder 31 comprises a material warehouse cylinder body 311 and a material warehouse cylinder piston rod end plate 312, the material warehouse cylinder body 311 is fixedly connected to a material warehouse cylinder mounting plate 331, and the material warehouse cylinder piston rod end plate 312 performs piston motion relative to the material warehouse cylinder body 311 in a direction parallel to a material containing bin bottom plate 334; the pressing plate 32 is fixedly connected to the end plate 312 of the piston rod of the cylinder of the material warehouse, the pressing plate 32 is provided with a pressing plate pressing surface 321 facing backwards, and the pressing plate pressing surface 321 is parallel to the vertical surface feeding part 211; the material warehouse 33 is fixedly connected with the lower die 21;
in the material warehouse 33, the plane part 128 of the folding blank 121 of the station to be delivered faces upwards and backwards and is attached to the vertical surface feeding part 211, the arc part 129 of the folding blank 121 of the station to be delivered faces downwards and forwards and is attached to the arc groove feeding part 212, the second folding blank 12 is placed in the same direction, the plane part 128 of the second folding blank 12 faces upwards and backwards and is attached to the forward plane of the folding blank 121 of the station to be delivered, the arc part 129 of the second folding blank 12 faces downwards and forwards, and the lowest edge line is abutted to the material containing bin bottom plate 334; a plurality of blank folds 12 are sequentially placed in the stock 33 in the same direction, the plane part 128 of the former blank fold 12 faces upwards and backwards and is attached to the forward plane of the latter blank fold 12, the arc parts 129 of the blank folds 12 face downwards and forwards, the front end of the storage bin bottom plate 334 is high, the rear end is low, the arc part 129 of the adjacent former blank fold 12 can avoid the arc part 129 of the latter blank fold 12, as shown in fig. 7, a gap 122 is formed between the arc parts 129 of the two adjacent blank folds 12, and the two adjacent blank folds are not in contact with each other and do not interfere with each other, so that the plane parts can be completely attached together without gaps, and the blank folds 12 can be accurately positioned;
the feeding cylinder 5 comprises a feeding cylinder body 51 and a feeding cylinder piston rod end plate 52; the material returning cylinder 6 comprises a material returning cylinder body 61 and a material returning cylinder piston rod end plate 62; the feeding cylinder 5 and the material returning cylinder 6 are both cylinder with guide rods; the material returning cylinder piston rod end plate 62 is fixedly connected with the workbench, the tail of the feeding cylinder body 51 is fixedly connected with the tail of the material returning cylinder body 61, and the feeding cylinder piston rod end plate 52 is fixedly connected with the material pushing tongue plate 4, as shown in fig. 18; the feeding cylinder body 51 is arranged on the right, the returning cylinder body 61 is arranged on the left, the returning cylinder piston rod end plate 62 extends towards the left, and the feeding cylinder piston rod end plate 52 extends towards the right; the material returning cylinder piston rod end plate 62 is fixedly connected with the workbench 24; the pushing tongue plate 4 is arranged in the vertical direction, and the pushing tongue plate 4 is in clearance fit with the vertical gap 2301; the thickness of the pusher tongue 4 is not greater than the thickness of the planar portion 128 of the blank 12.
The automatic stamping forming tool for the folding pin shaft cylinder for the press machine further comprises a pressing component 7; the pressing assembly 7 comprises a pressing guide sleeve 71, a pressing spring 72 and a pressing pin 73; the pressing guide sleeve 71 is provided with a guide hole, the pressing pin 73 is in sliding fit with the guide hole of the pressing guide sleeve 71, the front end of the pressing spring 72 is pressed against the pressing guide sleeve 71, the rear end of the pressing spring 72 is pressed against a shaft shoulder on the pressing pin 73, the rear end of the pressing pin 73 is a spherical surface 731, the rear end of the spherical surface 731 of the pressing pin 73 is pressed against the vertical face stamping part 213, when the vertical face stamping part 213 has a folding blank 12, the folding blank 12 is pressed, the folding blank 12 is attached to the vertical face stamping part 213, and the folding blank 12 is effectively prevented from toppling or being in other incorrect positions.
The direction control valve used by the material warehouse cylinder 31 preferably adopts an intermediate pressure relief type three-position five-way electromagnetic valve 8, and the intermediate pressure relief type three-position five-way electromagnetic valve 8 comprises an intermediate pressure relief type middle position and comprises an output port A, an output port B, an input port P, an exhaust port R and an exhaust port T; two working ports corresponding to the rod cavity and the rodless cavity of the material storage cylinder 31 are respectively communicated with the output port A and the output port B through pipelines. And a two-position four-way solenoid valve or other types of three-position five-way valves can also be used, which is not as convenient to use as the middle pressure relief type three-position five-way solenoid valve.
The intermediate pressure relief type three-position five-way solenoid valve 8 is an intermediate pressure relief type three-position five-way valve which is described in a fifth edition mechanical design manual 5, 23 rd to 241 th pages published by a chemical industry publishing company and compiled by Dada pioneer, and the control mode is an electric control type.
The working process of this embodiment is as follows.
0) Taking a folded blank 12, the plane part 128 of the folded blank 12 is upright, facing upwards and backwards, the circular arc part 129 is facing downwards and forwards, putting the folded blank into the stock 33 through the stock feeding hole 332, and making the lowest part of the folded blank 12 fall on the stock containing bin bottom plate 334. Because the holding bin bottom plate 334 is obliquely arranged, the front end of the holding bin bottom plate 334 is high, the rear end of the holding bin bottom plate 334 is low, the arc portion 129 of the adjacent previous blank 12 can avoid the arc portion 129 of the next blank 12, as shown in fig. 7, a gap 122 is formed between the arc portions 129 of the two adjacent blank 12, and the two adjacent blank portions are not in contact with each other and do not interfere with each other, so that the blank 12 and the plane portion 128 of the blank 121 to be delivered from the storage station are attached together one by one, and the accurate positioning is facilitated.
1) The middle pressure relief type three-position five-way electromagnetic valve 8 is reversed, so that the material storage cylinder 31 is filled with pressure air, the material storage cylinder 31 drives the pressing plate 32 to push the folding blank 12 towards the rear lower part, the pressing plate pressing surface 321 presses the folding blank 12, and the folding blank 12 and the plane part 128 of the folding blank 121 to be delivered from the storage station are attached together one by one. Then the middle pressure relief type three-position five-way electromagnetic valve 8 returns to the middle position, the end plate 312 of the piston rod of the material storage cylinder 31 of the material storage cylinder becomes a free state without applying force, namely, the end plate 312 of the piston rod of the material storage cylinder can be pushed to translate in the material storage cylinder 31 by lightly pushing with a hand.
2) The feeding cylinder 5 is filled with pressure air, the end plate 52 of the piston rod of the feeding cylinder drives the material pushing tongue plate 4 to translate rightwards through the vertical gap 2301, the material pushing tongue plate 4 pushes the folded blank 121 of the station to be delivered to translate rightwards together, the folded blank 121 of the station to be delivered to the warehouse is pushed to the right through a continuous gap formed by the vertical gap 2301 and the arc gap 2302, the continuous gap does not interfere with the lower die 21 and the warehouse 33, the end plate 312 of the piston rod of the cylinder of the warehouse is in a free state without force application, the folded blank 121 of the station to be delivered to the warehouse is not subjected to the pressure of the adjacent folded blank 12, and only small friction force exists between the contact surfaces and the vertical surface of the lower die 21 during relative. Until the folding blank 121 to be delivered from the warehouse station is pushed to the vertical stamping part 213 from the vertical feeding part 211, the folding blank is converted into the folding blank 123 of the stamping station, and meanwhile, the circular arc part 129 of the folding blank is also changed from being close to the circular arc groove feeding part 212 to being close to the circular arc groove stamping part 214, namely, the folding blank 121 to be delivered from the warehouse station is in the stamping station and is changed into the folding blank 123 of the stamping station. The plane part 128 of the blank 123 of the punching station meets the pressing pin 73 and is extruded from the side surface of the spherical surface 731 at the rear end of the pressing pin 73, the spherical surface 731 of the pressing pin 73 is extruded and then is translated forwards, the pressing pin 73 overcomes the pushing force of the pressing spring 72 and is translated forwards along the guide sleeve 71 until the spherical surface 731 of the pressing pin 73 is pressed forwards against the plane part 128 of the blank 123 of the punching station, and therefore the blank 123 of the punching station can be prevented from toppling over or being in other incorrect positions.
3) The upper die 22 is punched, the lower surface of the upper die 22 presses the top of the blank hinge 123 of the punching station, the circular arc portion 129 at the lower part of the blank hinge 123 of the punching station is continuously curled in the circular arc groove punching portion 214 to form the pin shaft cylinder 111, and the blank hinge 123 of the punching station is converted to the folded product 11. The upper die 22 is then translated upwardly away.
4) The material returning cylinder 6 is filled with pressure air, the end plate 62 of the piston rod of the material returning cylinder is not moved, the material returning cylinder body 61 translates rightwards, the feeding cylinder 5 and the material pushing tongue plate 4 are pushed to translate rightwards continuously until the material pushing tongue plate 4 pushes the folded paper finished product 11 away from the lower die 21 and falls into a turnover box behind.
5) The feeding cylinder 5 and the material returning cylinder 6 are simultaneously and reversely filled with pressure air to drive the material pushing tongue plate 4 to horizontally move leftwards to return to the initial position.
6) The middle pressure relief type three-position five-way electromagnetic valve 8 is reversed to enable the material storage cylinder 31 to be filled with pressure air, the material storage cylinder 31 drives the pressing plate 32 to push the folded blank 12 towards the rear lower part, the plane parts 128 of the folded blanks 12 are attached together one by one, the folded blank 12 closest to the vertical feeding part 211 is attached to the vertical feeding part 211 to be the folded blank 121 of the station to be discharged, then the middle pressure relief type three-position five-way electromagnetic valve 8 returns to the middle position, and the material storage cylinder piston rod end plate 312 of the material storage cylinder 31 becomes a free state. Finally, repeating the steps 2) to 5).
And (3) continuously repeating the steps 1) to 5), the folded blanks 12 in the stock 33 are punched and rolled into folded finished products 11 one by one and transferred into a subsequent turnover box, so that the aims of automatic feeding and demolding, high-efficiency production of the folded finished products 11 and reduction of operation safety are fulfilled.
The beneficial effects of this embodiment: the automatic feeding and demolding device has the advantages that the automatic feeding and demolding can be realized, the efficiency is high, the personnel stand at a remote place for operation, the hands do not need to be stretched to contact with the blank for folding, and the danger is small.
Claims (1)
1. An automatic punch forming tool for a folding pin shaft cylinder for a press comprises an upper die and a lower die; the bottom of the lower die is fixedly connected with the workbench, a forward vertical surface is arranged on the lower die, and an arc groove is arranged at the lower part of the vertical surface; the upper part of the upper die is fixedly connected with a working shaft handle of the press machine, and the upper die is plate-shaped;
the device is characterized by also comprising a material warehouse component, a material pushing tongue plate, a feeding cylinder and a material returning cylinder;
the vertical surface of the lower die is divided into a left part and a right part, the left side is a vertical surface feeding part, the right side is a vertical surface punching part, the arc groove is divided into a left part and a right part, the left side is an arc groove feeding part, and the right side is an arc groove punching part; the arc groove punching part is an 1/2 arc, the opening of the arc groove punching part is upward, and the backward edge of the arc groove punching part is tangent to the lower edge of the vertical surface; the backward plane of the upper die is tightly leaned on the vertical plane stamping part of the lower die;
the material warehouse component comprises a material warehouse cylinder, a pressing plate and a material warehouse; the material warehouse is a cavity, and a material warehouse accommodating bin is arranged in the material warehouse; the material warehouse is provided with a material containing bin bottom plate, the material containing bin bottom plate is obliquely arranged, and the front end of the material containing bin bottom plate is high, and the rear end of the material containing bin bottom plate is low; the cross section of the material containing bin of the material bin is rectangular, a material bin cylinder mounting plate is arranged at the foremost end of the material bin, a material bin feeding hole is formed in the upper portion of the front end of the material bin, a material bin discharging hole is formed in the rear end of the material bin, and the front end face of the material bin discharging hole is in the vertical direction; the front end face of the material warehouse discharge port is close to the vertical face feeding part, a vertical gap is arranged between the end face of the material warehouse discharge port and the vertical face feeding part, and the width of the vertical gap is larger than one time of the thickness of the plane part and smaller than two times of the thickness of the plane part; the lower edge of the discharge port of the material warehouse is provided with a chamfer, an arc gap is formed between the chamfer and the feeding part of the arc groove, and the vertical gap and the arc gap form a continuous gap which can allow a folding blank to pass through the gap; the material warehouse cylinder is a cylinder with a guide rod, and comprises a material warehouse cylinder body and a material warehouse cylinder piston rod end plate, the material warehouse cylinder body is fixedly connected to a material warehouse cylinder mounting plate, and the material warehouse cylinder piston rod end plate makes piston motion in a direction parallel to a material containing bin bottom plate relative to the material warehouse cylinder body; the pressing plate is fixedly connected to the tail end plate of the piston rod of the cylinder of the material warehouse and is provided with a pressing plate pressing surface facing backwards, and the pressing plate pressing surface is parallel to the vertical surface feeding part; the material warehouse is fixedly connected with the lower die;
the feeding cylinder comprises a feeding cylinder body and a feeding cylinder piston rod end plate; the material returning cylinder comprises a material returning cylinder body and a material returning cylinder piston rod end plate; the feeding cylinder and the material returning cylinder are both provided with guide rods; the tail end plate of the piston rod of the material returning cylinder is fixedly connected with the workbench, the tail part of the feeding cylinder body is fixedly connected with the tail part of the material returning cylinder body, and the tail end plate of the piston rod of the feeding cylinder is fixedly connected with the material pushing tongue plate; the feeding cylinder body is arranged on the right, the returning cylinder body is arranged on the left, the end plate of the piston rod of the returning cylinder extends towards the left, and the end plate of the piston rod of the feeding cylinder extends towards the right; the pushing tongue plate is arranged in the vertical direction and is in clearance fit with the vertical gap; the thickness of the pushing tongue plate is not more than that of the plane part of the folding blank;
the device also comprises a pressing component; the pressing assembly comprises a pressing guide sleeve, a pressing spring and a pressing pin; the pressing guide sleeve is provided with a guide hole, the pressing pin is in sliding fit with the guide hole of the pressing guide sleeve, the front end of the pressing spring presses the pressing guide sleeve, the rear end of the pressing spring presses a shaft shoulder on the pressing pin, the rear end of the pressing pin is a spherical surface, the rear end of the spherical surface of the pressing pin presses the vertical face stamping part, and when a folding blank exists on the vertical face stamping part, the folding blank is pressed;
the directional control valve used by the material warehouse cylinder selects a middle pressure relief type three-position five-way electromagnetic valve which comprises an output port A, an output port B, an input port P, an exhaust port R and an exhaust port T; two working ports corresponding to the rod cavity and the rodless cavity of the material warehouse cylinder are respectively communicated with the output port A and the output port B through pipelines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910009734.9A CN109482698B (en) | 2019-01-05 | 2019-01-05 | Automatic stamping forming tool and processing method for folding pin shaft barrel for press |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910009734.9A CN109482698B (en) | 2019-01-05 | 2019-01-05 | Automatic stamping forming tool and processing method for folding pin shaft barrel for press |
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| CN109482698A CN109482698A (en) | 2019-03-19 |
| CN109482698B true CN109482698B (en) | 2020-05-08 |
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| CN201910009734.9A Active CN109482698B (en) | 2019-01-05 | 2019-01-05 | Automatic stamping forming tool and processing method for folding pin shaft barrel for press |
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| CN112705632B (en) * | 2020-12-09 | 2022-08-26 | 江西量子新能源科技有限公司 | Riveting device for lithium battery cell |
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| JPS5271072A (en) * | 1975-12-11 | 1977-06-14 | Pulton Chain Kk | Method of working link plate in hinge system chain conveyor |
| CN203695758U (en) * | 2013-12-20 | 2014-07-09 | 柳州广菱汽车技术有限公司 | Crimping mould for sheet metal parts |
| CN106670340A (en) * | 2016-12-20 | 2017-05-17 | 广东合和建筑五金制品有限公司 | Pre-bent and forming semi-automatic hinge production equipment |
| CN107825145A (en) * | 2017-12-12 | 2018-03-23 | 浙江工业大学奉化智慧经济研究院 | A kind of automatic production line of hinge |
| CN208261716U (en) * | 2018-04-14 | 2018-12-21 | 青岛鑫隆恒达五金制品有限公司 | The production line of rod iron automatic charging device and the application device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271072A (en) * | 1975-12-11 | 1977-06-14 | Pulton Chain Kk | Method of working link plate in hinge system chain conveyor |
| CN203695758U (en) * | 2013-12-20 | 2014-07-09 | 柳州广菱汽车技术有限公司 | Crimping mould for sheet metal parts |
| CN106670340A (en) * | 2016-12-20 | 2017-05-17 | 广东合和建筑五金制品有限公司 | Pre-bent and forming semi-automatic hinge production equipment |
| CN107825145A (en) * | 2017-12-12 | 2018-03-23 | 浙江工业大学奉化智慧经济研究院 | A kind of automatic production line of hinge |
| CN208261716U (en) * | 2018-04-14 | 2018-12-21 | 青岛鑫隆恒达五金制品有限公司 | The production line of rod iron automatic charging device and the application device |
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Effective date of registration: 20200410 Address after: Room 107, building 1, No. 156, Lane 1881, Daye Road, Zhuangxing Town, Fengxian District, Shanghai 201402 Applicant after: SHANGHAI FANYU HARDWARE TOOLS Co.,Ltd. Address before: 272000 West Tower, five unit, east two unit, five tower, Jinta garden, Jining, Shandong. Applicant before: Du Zongying |
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