CN106994481B - A kind of die punching technique - Google Patents
A kind of die punching technique Download PDFInfo
- Publication number
- CN106994481B CN106994481B CN201710448721.2A CN201710448721A CN106994481B CN 106994481 B CN106994481 B CN 106994481B CN 201710448721 A CN201710448721 A CN 201710448721A CN 106994481 B CN106994481 B CN 106994481B
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- Prior art keywords
- punching
- die holder
- tubing
- fixedly connected
- platform
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Classifications
-
- 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
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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
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
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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
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- 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
- B21D43/28—Associations of cutting devices therewith
- B21D43/285—Devices for handling elongated articles, e.g. bars, tubes or profiles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a kind of die punching techniques, including rack, transmission unit, punching cutter unit and splicing unit be installed, die punching technique includes tubing feeding, circular hole punching, square hole punching, side opening punching, tubing cutting and tubing conveying in the rack.The present invention can carry out auto-feed to tubing automatically, and the porous while punching of tubing, the punching of different shaped jet holes during feeding, can be completed, moreover it is possible to complete the side direction punching of tubing, and can automatically cut off tubing after punching, punching technology is simpler.
Description
Technical field
The present invention relates to mechanical processing technique technical field more particularly to a kind of die punching techniques.
Background technology
Current aluminum alloy ladder generally comprises cleat stanchion and cross bar, and cleat stanchion and cross bar are generally aluminium alloy pipe through overshoot
The techniques such as hole, fluting and cut-out are process, and in the past to punching, fluting and to cut off these processes all be manually to control
Or semiautomatic control operation, so not only operating cost when and increase human cost, it is not only inefficient but also dangerous, when operation slightly not
It is careful that operating personnel will be made injured.
There are also full automatic punching apparatus and punching technology to occur at present, but current full-automatic punching technology is all only
The punching that a pass can be carried out on tubing, in the cleat stanchion punching of aluminum alloy ladder, need complete tubing it is porous simultaneously
Punching, the punching of different shaped jet holes, it is also necessary to complete the side direction punching of tubing, and there is a need for being able to after punching that tubing is automatic
Cut-out, it is clear that punching technology is not appropriate for used in current perforating press.
Invention content
In view of this, the object of the present invention is to provide a kind of higher die punching technique of production efficiency, this technique is more
It is simple and fast, can auto-feed be carried out to tubing automatically, and can complete the porous of tubing during feeding while rushing
The punching in hole, different shaped jet holes, moreover it is possible to complete the side direction punching of tubing, and can automatically cut off tubing after punching.
The present invention solves above-mentioned technical problem by following technological means：
A kind of die punching technique is equipped with transmission unit and punching using a kind of die punching machine, including rack in rack
Hole cutter unit, transmission unit include several first transfer rollers, and the both ends of the first transfer roller have been fixedly connected with first rotating shaft, the
One shaft is rotatably connected in rack, and the one end of first rotating shaft far from the first transfer roller is fixedly connected with sprocket wheel, between sprocket wheel
It is engaged with chain, the first belt pulley is coaxially connected on one of sprocket wheel, servo motor is installed in rack, on servo motor
Second belt pulley is installed, being tensioned between the first belt pulley and the second belt pulley has belt；Punching cutter unit includes lower die holder,
Lower die holder is fixedly connected in rack, and lower platen is provided with above lower die holder, punching is fixedly connected on the upper side of lower platen
Air cylinder, stamping cylinder are fixedly connected in rack, and several first guide rods are fixedly connected on lower die holder, and lower platen passes through simultaneously
It is slidably connected on the first guide rod, is provided with that circular hole rushes platform, square hole rushes platform, side opening rushes platform and cuts between lower die holder and lower platen
The ceding of Taiwan, circular hole rushes platform, square hole rushes platform, side opening rushes platform and cutting bed includes upper die holder, fixed on the upper side of upper die holder to connect
It is connected to contact block, the sliding block being respectively cooperating with contact block is slidably connected on the downside of lower platen, is connected on one end of sliding block
It is connected to minitype cylinder, several second guide rods are also fixedly connected on lower die holder, upper die holder passes through and is slidably connected at second and leads
To on bar, the first compression spring is provided on the second guide rod between lower die holder and upper die holder, circular hole rushes solid on the downside of the upper die holder of platform
Surely it is connected with circular hole punch-pin, the upper die holder downside that square hole rushes platform is fixedly connected with square hole punch-pin, and the upper die holder downside of cutting bed is solid
Surely cutter are connected with, side opening, which rushes on the downside of the upper die holder of platform, is fixedly connected with side opening punch mechanism, and side opening punch mechanism includes the
One voussoir, the first voussoir are fixedly connected on side opening and rush on the downside of the upper die holder of platform, and it is solid respectively that side opening rushes the lower die holder both ends below platform
Surely it is connected with U-type groove, is slided in U-type groove and is provided with the second voussoir, the opposite side of the second voussoir has been fixedly connected with connecting rod,
Connecting rod passes through U-type groove and is slidably connected with U-type groove, and the second compression spring is provided in the connecting rod between the second voussoir and U-type groove,
Side opening punch-pin is fixedly connected on the one end of connecting rod far from the second voussoir, and the first voussoir and the second voussoir are equipped with；Lower die holder
On be provided with the circular hole cavity plate coordinated with circular hole punch-pin, with square hole punch-pin cooperation square hole cavity plate；Stamping cylinder, minitype cylinder and
Servo motor is electrically connected with same control system；Punching cutter unit is provided with splicing in the rack far from transmission unit side
Unit, splicing unit include the second transfer roller, and the both ends of the second transfer roller are fixedly connected with the second shaft, and the rotation of the second shaft connects
It is connected in rack；
The punching technology includes the following steps:
A, tubing is fed：Control system setting program is operated by control system control servomotor according to setting program
And stopping, servo motor drive the first transport roller pair tubing to carry out the intermittent auto-feed of length according to setting, feeding speed
Spend 0.3-0.6 meter per seconds；
B, circular hole punching：Control system starts circular hole and rushes the minitype cylinder above platform, and minitype cylinder pushes slide block movement to arrive
The contact block rushed on platform with circular hole contacts, and stamping cylinder starts, and lower platen is driven to be pressed downward, 2-5 tons of down force pressure, to sliding block
Contact block is pushed, the upper die holder that circular hole rushes platform is pressed downward and compresses the first compression spring, utilizes the circular hole punch-pin pair of upper die holder downside
Tubing carries out the punching of circular hole；
C, square hole punching：Under servo motor drive, the first transfer roller drives tubing to be set with the feeding of 0.1-0.15 meter per seconds again
After fixed distance, principle declines with step b, stamping cylinder, and square hole rushes the startup of the minitype cylinder above platform, and square hole is carried out to tubing
Punching, 2-5 tons of stamping cylinder stamping pressure；
D, side opening punching：Stamping cylinder drives lower platen and upper die holder to decline, and the first voussoir also declines, under the first voussoir
Drop pushes the second voussoir, the second voussoir to be moved toward one another under the promotion of the first voussoir, pushes connecting rod to move toward one another, and compress
Second compression spring carries out side punching using the side opening punch-pin being connect with connecting rod to the tubing between two side opening punch-pin,
3-6 tons of stamping cylinder stamping pressure；
E, tubing is cut：Cutting bed completes cutting to tubing according to the principle of b or c using cutter, punching press when cutting
2-5 tons of cylinder stamping pressure；
F, tubing conveys：Tubing after punching enters the second transfer roller, is conveyed by the second transfer roller, transmission speed
0.3-0.6 meter per seconds.
Further, the sliding block offers first through hole close to the side of minitype cylinder, is in contraction-like in minitype cylinder
State, first through hole are located at the surface of the contact block close to minitype cylinder side.
Further, recycling bins are provided with below the lower die holder, the both sides of the recycling bins are rotatably connected to pulley, institute
It states and is provided with sliding rail in rack, the pulley is slidably connected on sliding rail.
Further, the first guide groove of fixed tubing is provided between the upper die holder and lower die holder, described first is oriented to
The second through-hole coordinated with side opening punch-pin is provided on slot.
Further, the U-type groove is fixedly connected with conduit close to the side of the first guide groove, and cunning is lined in the conduit
Dynamic bearing, the connecting rod are slidably connected in conduit.
Further, the second guide groove is fixedly connected on first transfer roller, second guide groove and first are oriented to
Slot is on same straight line.
Further, the circular hole punch-pin and square hole punch-pin are threaded on upper die holder, and the side opening punch-pin screw thread connects
It is connected in connecting rod.
Beneficial effects of the present invention：
1, this technique drives the first transfer roller to rotate and stop according to the program that control system is set by servo motor, from
And drive tubing according to setting length it is intermittent be automatically fed into punching cutter unit, the length of feeding is more accurate,
Also it more automates；
2, the circular hole that this technology utilization is set up in parallel rushes platform, square hole rushes platform, side opening rushes platform and cutting bed is according to transmission unit
Feeding porous while punching, the punching of different shaped jet holes are carried out to tubing, moreover it is possible to complete the side direction punching of tubing, and can be
Tubing is automatically cut off after punching, artificial overturning is not needed in punch process, punching cutting efficiency is high；
3, this technique carries out auto-feed, automatic punching and automatic cutting to tubing, more automation and intelligence, no
Only save labour, production efficiency also higher.
Description of the drawings
Fig. 1 is a kind of vertical view of die punching technique of the present invention；
Fig. 2 is the vertical view after present invention removal lower platen；
Fig. 3 is the side view of punching cutter unit in Fig. 1；
Fig. 4 is the schematic diagram that circular hole rushes platform in Fig. 1；
Fig. 5 is the schematic diagram that square hole rushes platform in Fig. 1；
Fig. 6 is the schematic diagram of cutting bed in Fig. 1；
Fig. 7 is the schematic diagram that side opening rushes platform in Fig. 1.
Wherein, rack 1, the first transfer roller 2, first rotating shaft 3, chain 4, the first belt pulley 5, servo motor 6, the second belt
Wheel 7, belt 8, lower die holder 9, lower platen 10, stamping cylinder 11, the first guide rod 12, circular hole rushes platform 13, square hole rushes platform 14, side opening
Rush platform 15, cutting bed 16, upper die holder 17, contact block 18, sliding block 19, minitype cylinder 20, the second guide rod 21, the first compression spring 22,
Circular hole punch-pin 23, square hole punch-pin 24, cutter 25, control system 26, the first voussoir 27, U-type groove 28, the second voussoir 29, connection
Bar 30, the second compression spring 31, side opening punch-pin 32, first through hole 33, recycling bins 34, the first guide groove 35, the second transfer roller 36, second
Shaft 37, conduit 38, the second guide groove 39.
Specific implementation mode
Below with reference to attached drawing, the present invention is described in detail：
As shown in figs. 1-7：
A kind of die punching technique, using a kind of die punching machine, including rack 1, be equipped in rack 1 transmission unit and
Punching cutter unit, transmission unit include several first transfer rollers 2, and the both ends of the first transfer roller 2 have been fixedly connected with first turn
Axis 3, first rotating shaft 3 are rotatably connected in rack 1, and the one end of first rotating shaft 3 far from the first transfer roller 2 is fixedly connected with sprocket wheel,
It is engaged with chain 4 between sprocket wheel, the first belt-wheel 5 is coaxially connected on one of sprocket wheel, servo is installed in rack 1
Motor 6 is equipped with the second belt-wheel 7 on servo motor 6, between the first belt-wheel 5 and the second belt-wheel 7 tensioning have belt
8；Punching cutter unit includes lower die holder 9, and lower die holder 9 is fixedly connected in rack 1, and the top of lower die holder 9 is provided with lower platen
10, stamping cylinder 11 is fixedly connected on the upper side of lower platen 10, and stamping cylinder 11 is fixedly connected in rack 1, lower die holder 9
On be fixedly connected with several first guide rods 12, lower platen 10 is passed through and is slidably connected on the first guide rod 12, lower die holder 9 with
It is provided with that circular hole rushes platform 13, square hole rushes platform 14, side opening rushes platform 15 and cutting bed 16 between lower platen 10, circular hole rushes platform 13, square hole
Rush platform 14, side opening rushes platform 15 and cutting bed 16 includes upper die holder 17, be fixedly connected with contact on the upper side of upper die holder 17
Block 18, slidably connects the sliding block 19 being respectively cooperating with contact block 18 on the downside of lower platen 10, on one end of sliding block 19
It is connected with minitype cylinder 20, several second guide rods 21 are also fixedly connected on lower die holder 9, upper die holder 17 is passed through and is slidably connected
On the second guide rod 21, the first compression spring 22, circular hole punching are provided on the second guide rod 21 between lower die holder 9 and upper die holder 17
17 downside of upper die holder of platform 13 is fixedly connected with circular hole punch-pin 23, and 17 downside of upper die holder that square hole rushes platform 14 is fixedly connected with square hole
17 downside of upper die holder of punch-pin 24, cutting bed 16 is fixedly connected with cutter 25, and 17 downside of upper die holder that side opening rushes platform 15 is fixed
It is connected with side opening punch mechanism, side opening punch mechanism includes the first voussoir 27, and the first voussoir 27 is fixedly connected on side opening and rushes platform 15
The downside of upper die holder 17,9 both ends of lower die holder that side opening rushes 15 lower section of platform have been respectively fixedly connected with U-type groove 28, sliding in U-type groove 28
It is provided with the second voussoir 29, the opposite side of the second voussoir 29 has been fixedly connected with connecting rod 30, and connecting rod 30 passes through U-type groove 28
And be slidably connected with U-type groove 28, the second compression spring 31, side opening are provided in the connecting rod 30 between the second voussoir 29 and U-type groove 28
Punch-pin 32 is fixedly connected on the one end of connecting rod 30 far from the second voussoir 29, and the first voussoir 27 and the second voussoir 29 are equipped with；
The circular hole cavity plate coordinated with circular hole punch-pin 23 is provided on lower die holder 9, the square hole cavity plate coordinated with square hole punch-pin 24；Stamping cylinder
11, minitype cylinder 20 and servo motor 6 are electrically connected with same control system 26；Punching cutter unit is far from transmission unit side
Rack 1 on be provided with splicing unit, splicing unit includes the second transfer roller 36, and the both ends of the second transfer roller 36 are fixedly connected with
Second shaft 37, the second shaft 37 are rotatably connected in rack 1；
The punching technology includes the following steps:
This die punching technique is as follows：
A, tubing is fed：Tubing is placed in the second guide groove 39 on the first transfer roller 2, and makes tubing alignment the
One guide groove 35 sets program to control system 26, opens servo motor 6, servo motor 6 according to setting program run and
Stop, the rotation of servo motor 6 drives the rotation of the second belt pulley 7, the rotation of the second belt pulley 7 just to drive first by belt 8
Belt pulley 5 rotates, and the rotation of the first belt pulley 5 just drives coaxially connected sprocket wheel rotation, the rotation of sprocket wheel just to pass through 4 band of chain
It is dynamic to drive the rotation of the first transfer roller 2, and then tubing is fed into the second guide groove 39, feed speed control 0.3-0.6 meters/
Second.
B, circular hole punching：After tubing enters in the second guide groove 39, the minitype cylinder 20 that circular hole rushes 13 top of platform starts, and pushes away
The contact block 18 that movable slider 19 is moved to circular hole rushes on platform 13 contacts, and stamping cylinder 11 starts, and lower platen 10 is driven to be pressed downward,
3 tons of down force pressure, to push contact block 18 with movable slider 19, and then the upper die holder 17 that circular hole is rushed to platform 13 is pressed downward and compresses
First compression spring carries out tubing using the circular hole punch-pin 23 of 17 downside of upper die holder the punching of circular hole, after circular hole punching, punching
Air cylinder 11 rises, and minitype cylinder 20 is shunk, and upper die holder 17 moves upwards reset under the reset response of the first compression spring；
C, square hole punching：After circular hole punching, the first transfer roller 2 drives 0.15 meter per second of tubing to feed a distance again
Afterwards, similarly, stamping cylinder 11 declines, and the minitype cylinder 20 that square hole rushes 14 top of platform starts, and the punching of square hole, punching are carried out to tubing
2-5 tons of air cylinder stamping pressure.
D, side opening punching：When carrying out the punching of side opening, when upper die holder 17 declines, the first voussoir of 17 downside of upper die holder
27 also decline, and the lower general who has surrendered of the first voussoir 27 pushes the second voussoir 29, and the second voussoir 29 is under the promotion of the first voussoir 27, in opposite directions
Movement pushes connecting rod 30 to move toward one another, and compresses the second compression spring 31, and then utilizes the side opening punch-pin 32 being connect with connecting rod 30
Side punching is carried out to the tubing between two side opening punch-pin 32, after punching finishes, upper die holder 17 rises, and drives first
Voussoir 27 rises, and under the reset response power of the second compression spring 31, two side opening punch-pin 32 complete the side to tubing backwards to moving
Punching, 3-6 tons of stamping cylinder stamping pressure.
E, tubing is cut：After side opening punching, cutting bed 16 is according to the principle of circular hole punching and square hole punching, completion pair
The cutting of tubing, 2-5 tons of stamping cylinder stamping pressure when cutting.
F, tubing conveys：After tubing is cut, the tubing processed advances to the second transfer roller 36, passes through second
Transfer roller 36 is transported to appointed place, transmission speed 0.3-0.6 meter per seconds.
The sliding block 19 offers first through hole 33 close to the side of minitype cylinder 20, is in contraction-like in minitype cylinder 20
State, first through hole 33 are located at the surface of the contact block 18 close to 20 side of minitype cylinder.When minitype cylinder 20 is in contraction-like
State, when sliding block 19 drives decline by top board, contact block 18 can pass through first through hole 33 without being pressed downward by sliding block 19, such as
This, there is no need to minitype cylinders 20 to be all pulled away from contact block 18 by sliding block 19, and the flexible amplitude of minitype cylinder 20 is small, and reaction is more
Soon, more efficient, and structure is also compacter.
The lower section of the lower die holder 9 is provided with recycling bins 34, and the both sides of the recycling bins 34 are rotatably connected to pulley, described
Sliding rail is provided in rack 1, the pulley is slidably connected on sliding rail.Circular hole punch-pin 23 and square hole punch-pin 24 rush tubing
Kong Shi, the waste material being rushed out on tubing advance to recycling bins 34 and are collected, after the garbage collection in recycling bins 34 is full,
Recycling bins 34 are skidded off from sliding rail by scrap discharge, being scattered everywhere for waste material is avoided.
The first guide groove 35 of fixed tubing, first guide groove are provided between the upper die holder 17 and lower die holder 9
The second through-hole coordinated with side opening punch-pin 32 is provided on 35.When being punched out and cutting, tubing can be fixed on first and lead
Into slot 35, avoid impact force larger when punching pipes and cutting that tubing is caused to shift, punching quality is more preferable.
The U-type groove 28 is fixedly connected with conduit 38 close to the side of the first guide groove 35, is lined in the conduit 38
Sliding bearing, the connecting rod 30 are slidably connected in conduit 38.The setting of conduit 38 makes connecting rod 30 in sliding, sliding
It is more steady, avoid sliding inclined, the setting of sliding bearing so that connecting rod 30 rubs in conduit 38 when sliding smaller, and noise is also more
It is small.
The second guide groove 39, second guide groove, 39 and first guide groove are fixedly connected on first transfer roller 2
35 on same straight line.The setting of second guide groove 39 so that tubing, can be to avoid pipe when being transmitted on the first transfer roller 2
Material shifts and causes the non-type problem of punching, more preferable to the punching quality of tubing.
The circular hole punch-pin 23 and square hole punch-pin 24 are threaded on upper die holder 17, and 32 screw thread of side opening punch-pin connects
It is connected in connecting rod 30.When in use, if desired the size of change circular hole punch-pin 23, square hole punch-pin 24 or side opening punch-pin 32 or
When person's shape, it is threadedly coupled the replacement for facilitating punch-pin；After prolonged use, circular hole punch-pin 23, square hole punch-pin 24 or
Side opening punch-pin 32 damages or is also convenient for after wearing the replacement of punch-pin.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, it can modify to technical scheme of the present invention
Or equivalent replacement should all cover the claim in the present invention without departing from the objective and range of technical solution of the present invention
In range.Technology that the present invention is not described in detail, shape, construction part are known technology.
Claims (7)
1. a kind of die punching technique, it is characterised in that：The technique uses a kind of die punching machine, including rack, in rack
It is sequentially installed with transmission unit, punching cutter unit and splicing unit；The transmission unit includes several first transfer rollers, and first
The both ends of transfer roller have been fixedly connected with first rotating shaft, and first rotating shaft is rotatably connected in rack, and first rotating shaft is passed far from first
It send one end of roller to be fixedly connected with sprocket wheel, chain is engaged between sprocket wheel, the first skin is coaxially connected on one of sprocket wheel
Belt wheel is equipped with servo motor in rack, is equipped with the second belt pulley on servo motor, the first belt pulley and the second belt pulley it
Between tensioning have belt；The punching cutter unit includes lower die holder, and lower die holder is fixedly connected in rack, is set above lower die holder
It is equipped with lower platen, stamping cylinder is fixedly connected on the upper side of lower platen, stamping cylinder is fixedly connected in rack, lower die holder
On be fixedly connected with several first guide rods, lower platen is passed through and is slidably connected on the first guide rod, lower die holder and lower platen
Between be provided with that circular hole rushes platform, square hole rushes platform, side opening rushes platform and cutting bed, circular hole rushes platform, square hole rushes platform, side opening rushes platform and cutting
Platform includes upper die holder, has been fixedly connected with contact block on the upper side of upper die holder, has been slidably connected on the downside of lower platen
The sliding block being respectively cooperating with contact block is respectively connected with minitype cylinder on one end of sliding block, is also fixedly connected on lower die holder several
Second guide rod, upper die holder are passed through and are slidably connected on the second guide rod, the second guide rod between lower die holder and upper die holder
On be provided with the first compression spring, circular hole rushes on the downside of the upper die holder of platform and is fixedly connected with circular hole punch-pin, and square hole rushes on the downside of the upper die holder of platform
It is fixedly connected with square hole punch-pin, cutter are fixedly connected on the downside of the upper die holder of cutting bed, side opening rushes solid on the downside of the upper die holder of platform
Surely it is connected with side opening punch mechanism, side opening punch mechanism includes the first voussoir, and the first voussoir is fixedly connected on side opening and rushes the upper of platform
On the downside of die holder, the lower die holder both ends that side opening rushes below platform have been respectively fixedly connected with U-type groove, are slided in U-type groove and are provided with the second wedge
The opposite side of block, the second voussoir has been fixedly connected with connecting rod, and connecting rod passes through U-type groove and is slidably connected with U-type groove, and second
The second compression spring is provided in connecting rod between voussoir and U-type groove, the one end of connecting rod far from the second voussoir is fixedly connected with side
Hole punch-pin, the first voussoir and the second voussoir are equipped with, and the circular hole cavity plate coordinated with circular hole punch-pin are provided on lower die holder, with side
The square hole cavity plate of hole punch-pin cooperation, stamping cylinder, minitype cylinder and servo motor are electrically connected with same control system；It is described to connect
Material unit includes the second transfer roller, and the both ends of the second transfer roller are fixedly connected with the second shaft, and the second shaft is rotatably connected on machine
On frame；
The die punching technique includes the following steps:
A, tubing is fed：Control system setting program is operated and is stopped according to setting program by control system control servomotor
Only, servo motor drives the first transport roller pair tubing to carry out the intermittent auto-feed of length according to setting, feed speed
0.3-0.6 meter per seconds；
B, circular hole punching：Control system starts circular hole and rushes the minitype cylinder above platform, minitype cylinder push slide block movement to circle
Contact block contact on Kong Chongtai, stamping cylinder start, and lower platen is driven to be pressed downward, 2-5 tons of down force pressure, to which sliding block pushes
Contact block, the upper die holder that circular hole rushes platform are pressed downward and compress the first compression spring, using the circular hole punch-pin of upper die holder downside to tubing
Carry out the punching of circular hole；
C, square hole punching：Under servo motor drive, the first transfer roller drives tubing with the feeding setting of 0.1-0.15 meter per seconds again
After distance, principle declines with step b, stamping cylinder, and square hole rushes the startup of the minitype cylinder above platform, and carrying out square hole to tubing rushes
Hole, 2-5 tons of stamping cylinder stamping pressure；
D, side opening punching：Stamping cylinder drives lower platen and upper die holder to decline, and the first voussoir also declines, and the decline of the first voussoir pushes away
Dynamic second voussoir, the second voussoir move toward one another under the promotion of the first voussoir, and connecting rod is pushed to move toward one another, and compress second
Compression spring carries out side punching, punching press using the side opening punch-pin being connect with connecting rod to the tubing between two side opening punch-pin
3-6 tons of cylinder stamping pressure；
E, tubing is cut：Cutting bed completes cutting to tubing according to the principle of b or c using cutter, stamping cylinder when cutting
2-5 tons of stamping pressure；
F, tubing conveys：Tubing after punching enters the second transfer roller, is conveyed by the second transfer roller, transmission speed 0.3-
0.6 meter per second.
2. a kind of die punching technique according to claim 1, it is characterised in that：The sliding block close to minitype cylinder one
Side offers first through hole, is in contraction state in minitype cylinder, first through hole is located at the contact block close to minitype cylinder side
Surface.
3. a kind of die punching technique according to claim 2, it is characterised in that：It is provided with back below the lower die holder
Case is received, the both sides of the recycling bins are rotatably connected to pulley, sliding rail is provided in the rack, and the pulley is slidably connected at cunning
On rail.
4. a kind of die punching technique according to claim 3, it is characterised in that：It is set between the upper die holder and lower die holder
It is equipped with the first guide groove of fixed tubing, the second through-hole coordinated with side opening punch-pin is provided on first guide groove.
5. a kind of die punching technique according to claim 4, it is characterised in that：The U-type groove is close to the first guide groove
Side be fixedly connected with conduit, sliding bearing is lined in the conduit, the connecting rod is slidably connected in conduit.
6. a kind of die punching technique according to claim 5, it is characterised in that：It is fixedly connected on first transfer roller
There are the second guide groove, second guide groove and the first guide groove to be on same straight line.
7. a kind of die punching technique according to claim 6, it is characterised in that：The circular hole punch-pin and square hole punch-pin are equal
It is threaded on upper die holder, the side opening punch-pin is threaded in connecting rod.
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