CN213378754U - Automatic multi-punch punching machine - Google Patents

Abstract

The utility model relates to an automatic multi-punch punching machine, which comprises a frame, a pipe feeding device, a die device and a die assembly, wherein the die assembly comprises punch components, punch control components, an upper pressure plate, lifting guide pillars, lifting plates, lifting screws, guide plates, pressing guide pillars, a lower pressure plate and a bottom plate, the bottom plate is provided with two groups of guide wheels, a punching position is formed between the two groups of guide wheels, the lower pressure plate, the guide plates and the lifting plates all slide along the pressing guide pillars, the lifting screws are fixedly connected with the lifting plates, the lifting screws are in threaded connection with the lower pressure plate, the upper pressure plate slides along the lifting guide pillars, the top ends of the lifting guide pillars are provided with limit steps movably clamped with the upper pressure plate, each punch component respectively slides along the lifting plates, the guide plates and the lower pressure plates, each punch component points to the punching position, each punch control component is arranged on the upper pressure plate, each punch control component is movably matched with the corresponding punch, the die device is arranged on the frame and extends into the stamping position, so that the cost is low, and the use is convenient.

Description

Automatic multi-punch punching machine

Technical Field

The utility model relates to a piercing press technical field especially relates to an automatic many drifts piercing press.

Background

Punching machines are widely used for machining and forming mechanical parts, and machining of the parts is not always simple and repeated in a unit. In order to adapt to the processing of fine and diversified parts, a multi-station punch press is usually needed, the existing punching processing mostly adopts a turret type numerical control punch press with a multi-station punch head, which is very high in price, namely, male dies with different stations are arranged on a rotatable shaft, but when the male die is used, the position of the male die needs to be corrected so as to enable the male die to be accurately aligned with a female die plate, the use is inconvenient, the production difficulty of the male die is high, the common price is high, and the male die needs to be frequently replaced if the brick turret type numerical control punch press is not used, so that the use is very inconvenient.

Particularly, in the process of punching the pipe, the pipe has a certain thickness and a long stroke of the punch, so that a cheap and convenient punching machine needs to be designed to punch the pipe.

SUMMERY OF THE UTILITY MODEL

For overcoming the technical defect that prior art exists, the utility model provides an automatic many drifts piercing press, low cost, it is convenient to use.

The utility model discloses a technical solution be: the automatic multi-punch punching machine comprises a rack, a pipe conveying device, a female die device and a die head assembly, wherein a slide rail is arranged on the rack, the pipe conveying device slides along the slide rail and is in transmission connection with the rack, the die head assembly comprises a plurality of punch components, a plurality of punch control components, an upper pressure plate, a lifting guide pillar, a lifting plate, a lifting screw, a guide plate, a lower pressure guide pillar, a lower pressure plate, a cushion block and a bottom plate, the bottom plate is arranged on the rack, two groups of guide wheels are rotatably arranged on the bottom plate along the sliding direction of the pipe conveying device, a punching position is formed between the two groups of guide wheels, the cushion block is fixedly arranged on the bottom plate, each lower pressure guide pillar is vertically and fixedly arranged on the bottom plate, the lower pressure plate, the guide plate and the lifting plate all slide along each lower pressure guide pillar, the lifting screw is fixedly connected with the lifting plate and the guide plate, the lifting screw is in threaded connection with, the punch control device comprises an upper press plate, a lower press plate, a guide plate, a die device and a guide plate, wherein the upper press plate slides along each lifting guide pillar, the top end of each lifting guide pillar is provided with a limiting step movably clamped with the upper press plate, each punch component slides along the lifting plate, the guide plate and the lower press plate respectively, each punch component points to a punching position, each punch control component is installed on the upper press plate and is movably matched with the corresponding punch component, and the die device is installed on a rack and extends into the punching position.

As the utility model discloses a further improvement, each drift control assembly all includes drift control cylinder and drift control block, the top board bottom is equipped with a plurality of direction T type grooves, each the drift control block is installed at the end that corresponds drift control cylinder output and is followed and to be slided in corresponding direction T type groove, drift control block and corresponding drift subassembly clearance fit.

As the utility model discloses a further improvement, each the drift subassembly all includes drift guide bar, drift screw, towards the needle, the drift guide bar slides from top to bottom along lifting board and deflector, towards the needle and pass through the drift screw and adorn admittedly on the drift guide bar, drift screw and corresponding drift control block clearance fit.

As the utility model discloses a further improvement, each drift control block lower extreme is equipped with and carries and draws T type groove, each the embedding of drift screw is corresponding to be carried and is drawn T type groove and along corresponding carrying and draw T type groove slip.

As the utility model discloses a further improvement, each the drift subassembly still includes reset spring, reset spring cover is outside towards the needle, each reset spring upper end withstands the drift guide bar and reset spring lower extreme withstands the holding down plate.

As a further improvement of the utility model, the die head assembly still includes the mould mounting panel and breaks the device, the bottom plate is adorned admittedly on the mould mounting panel, the mould mounting panel is adorned admittedly in the frame, it includes the break sword and breaks the guide block to break the device, break the guide block and adorn admittedly on the mould mounting panel and break the guide block an organic whole and be equipped with the material guiding hole and the break guiding hole that communicate each other, the break sword slides along breaking the guiding hole, the directional punching press position of material guiding hole, the die device stretches into the punching press position, the position department that corresponds with the punching press position of mould mounting panel and bottom plate all is equipped with the blanking hole.

As a further improvement, send tub device including sending tub base, locating component, send tub power pack, a plurality of guide pillar subassembly, two splint and a plurality of tight power spare of clamp, send tub base to slide along the slide rail, each guide pillar subassembly parallel mount respectively is on sending tub base, each splint all slide along the guide pillar subassembly, each the splint outside is equipped with respectively to well spring, each to well spring effect direction all directional corresponding splint inboardly, each clamp tightly power spare admittedly on splint and the output that presss from both sides tight power spare is adorned admittedly on another splint, send tub power pack to install on sending tub base and the frame is connected in the transmission, locating component adorns admittedly on sending tub base between two splint.

As the utility model discloses a further improvement, send tub power component including sending tub motor and sending tub gear, the rack is equipped with admittedly in the frame, send tub motor admittedly on sending tub base, send tub gear admits tub motor output and send tub gear and rack drive to be connected admittedly.

As a further improvement of the utility model, the guide pillar subassembly includes centering guide pillar, a plurality of guide pillar mount pad and a plurality of guide pillar mounting screw, each the guide pillar mount pad all is equipped with the guide pillar mounting hole, each centering guide pillar wears into and corresponds the guide pillar mounting hole, each centering guide pillar is adorned admittedly on the guide pillar mounting hole through corresponding guide pillar mounting screw, each the centering guide pillar is all established on corresponding centering guide pillar to the well spring cover, each to centering spring one end top on corresponding the guide pillar mount pad and the other end top on corresponding splint, each splint slide along corresponding centering guide pillar.

As the utility model discloses a further improvement, each the guide pillar mount pad is installed and is being equipped with a plurality of clamping screw on sending the pipe base respectively, the guide pillar mount pad is equipped with and presss from both sides tight breach, press from both sides tight breach intercommunication guide pillar mounting hole, each clamping screw passes and presss from both sides tight breach and dwindles and press from both sides tight breach aperture.

The utility model has the advantages that:

the pipe conveying device slides along a slide rail and is in transmission connection with a rack and used for conveying pipes, the die head assembly comprises a plurality of punch components, a plurality of punch control components, an upper pressure plate, a lifting guide pillar, a lifting plate, a lifting screw, a guide plate, a lower pressure guide pillar, a lower pressure plate, a cushion block and a bottom plate, two groups of guide wheels are rotatably arranged on the bottom plate along the sliding direction of the pipe conveying device, a stamping position is formed between the two groups of guide wheels, the cushion block is fixedly arranged on the bottom plate, the lower pressure plate is arranged on the cushion block through the lifting screw, and a gap is formed between the lifting screw and the upper surface of the lower pressure plate and used for providing a space for lifting the lower;

each lower pressing guide post is vertically and fixedly arranged on the bottom plate, the lower pressing plate, the guide plate and the lifting plate all slide along each lower pressing guide post, so that the lower pressing plate and the guide plate synchronously move up and down, the lifting screw is fixedly connected with the lifting plate and the guide plate, the lifting screw is in threaded connection with the lower pressing plate, each lifting guide post is vertically and fixedly arranged on the lifting plate, the upper pressing plate slides along each lifting guide post and is in transmission connection with each lifting guide post, specifically, the upper end of each lifting guide post is integrally provided with a limit step for enabling the upper pressing plate to lift the lifting guide post, the upper end of the upper pressing plate is provided with a first oil cylinder, the first oil cylinder is arranged on the frame and used for lifting the lifting plate, the first oil cylinder lifts the lifting plate, the lifting plate lifts each lifting guide post, and further synchronously lifts the guide plate, the lifting screw and the lower pressing plate, each guide wheel rolls along the pipe when the pipe is conveyed into the punching position by the, then the upper pressing plate descends, and the lower pressing plate presses the pipe due to the descending of the upper pressing plate;

each drift subassembly is along lifting the board respectively, deflector and holding down plate slip and all directional punching press positions of each drift subassembly, each drift control assembly is installed on the top board, each drift control assembly with correspond drift subassembly clearance fit, the die device stretches into the punching press position, the top board continues to push down after the tubular product is pushed down to the holding down plate, drift control assembly stretches out, the top board drives drift control assembly and pushes down, to correspond the drift subassembly punching press position of impressing, it is worth noting, owing to be equipped with a plurality of drift subassemblies, these drift subassemblies can be different shapes, each drift control assembly stretches out as required, to correspond the drift subassembly and press to the punching press position, the different shapes of realization that can be very convenient punch a hole, need not to use brick tower punch press, therefore, the carrier wave prepaid electric energy meter is low in cost.

Drawings

Fig. 1 is a schematic view of the whole machine of the present invention.

FIG. 2 is a schematic diagram of the die assembly configuration.

FIG. 3 is a schematic view of another perspective of the die assembly.

FIG. 4 is a schematic cross-sectional view of the die assembly with the lower platen raised.

FIG. 5 is a schematic cross-sectional view of the die assembly as the lower platen presses the tube.

FIG. 6 is a schematic cross-sectional view of the die assembly as the punch assembly punches a hole.

FIG. 7 is a schematic view of the tube feeding device.

Fig. 8 is an enlarged schematic view of a portion a of fig. 7.

Fig. 9 is a schematic view of the installation position of the positioning plate.

Description of reference numerals:

1. a frame; 11. a first cylinder; 12. a second cylinder;

2. a pipe conveying device; 21. a pipe conveying base; 22. a positioning assembly; 221. positioning a plate; 2211. positioning the long hole; 23. a pipe conveying power assembly; 24. a guide post assembly; 241. centering the guide pillar; 242. a guide post mounting seat; 243. mounting screws on the guide pillars; 244. a clamping screw; 2421. clamping the notch; 25. a splint; 251. anti-skid blocks; 26. clamping the power piece; 27. a middle spring;

3. a female die device;

4. a die head assembly; 41. cushion blocks; 411. a lifting stop screw; 42. a base plate; 43. an upper pressure plate; 431. guiding the T-shaped groove; 44. lifting the guide post; 441. a limiting step; 45. lifting the plate; 46. lifting the screw; 47. a guide plate; 48. pressing down the guide pillar; 49. a lower pressing plate;

5. a slide rail;

6. a punch assembly; 61. a punch guide bar; 62. a punch screw; 63. punching a needle; 64. a return spring;

7. a punch control assembly; 71. a punch control cylinder; 72. a punch control block; 721. lifting the T-shaped groove;

8. a guide wheel;

9. a mold mounting plate; 91. a breaking device; 911. punching a cutter; 912. breaking the guide block; 913. a material guide hole; 914. punching the guide hole; 92. and (7) blanking holes.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-9, the embodiment provides an automatic multi-punch punching machine, which comprises a frame 1, a tube feeding device 2, a female die device 3 and a die head assembly 4, wherein a slide rail 5 is arranged on the frame 1, the tube feeding device 2 slides along the slide rail 5 and is in transmission connection with the frame 1, the die head assembly 4 is used for conveying pipes and comprises a plurality of punch assemblies 6, a plurality of punch control assemblies 7, an upper pressing plate 43, a lifting guide pillar 44, a lifting plate 45, lifting screws 46, a guide plate 47, a lower pressing guide pillar 48, a lower pressing plate 49, a cushion block 41 and a bottom plate 42, wherein two groups of guide wheels 8 are rotatably arranged on the bottom plate 42 along the sliding direction of the pipe conveying device 2, a punching position is formed between the two groups of guide wheels 8, the cushion block 41 is fixedly arranged on the bottom plate 42, the lower pressing plate 49 is arranged on the cushion block 41 through the lifting stop screws 411, and a gap is formed between the lifting stop screws 411 and the upper surface of the lower pressing plate 49 and used for providing space for lifting of the lower pressing plate.

Each lower pressing guide post 48 is vertically and fixedly arranged on the bottom plate 42, the lower pressing plate 49, the guide plate 47 and the lifting plate 45 all slide along each lower pressing guide post 48, and the lifting screw 46 is respectively in threaded connection with the guide plate 47 and the lower pressing plate 49, so that the lower pressing plate 49 and the guide plate 47 are further formed; the guide plate 47 is supported by the lower press plate 49 and cannot fall off, so that the lower press plate 49 and the guide plate 47 synchronously move up and down, the lifting screw 46 is fixedly connected with the lifting plate 45, specifically, the lifting screw 46 passes through the lifting plate 45 and is screwed on the lifting plate 45 and the guide plate 47, each lifting guide pillar 44 is vertically and fixedly arranged on the lifting plate 45, the upper press plate 43 slides along each lifting guide pillar 44, a limit step 441 movably clamped with the upper press plate 43 is arranged at the top end of each lifting guide pillar 44, each limit step 441 blocks the upper end of the upper press plate 43, the upper press plate 43 is provided with a first oil cylinder 11 at the upper end, the first oil cylinder 11 is arranged on the frame 1 for lifting the lifting plate 45, the first oil cylinder 11 lifts the lifting plate 45, the lifting plate 45 lifts each lifting guide pillar 44, and further synchronously lifts the guide plate 47, the lifting screw 46 and the lower press plate 49 together (as shown in fig. 4), when the pipe is conveyed into the punching position by the pipe conveying device 2, each guide wheel 8 rolls along the pipe to restrain the position of the pipe, then the upper pressing plate 43 descends, and the lower pressing plate 49 presses the pipe due to the descending of the upper pressing plate 43 (as shown in figure 5);

each punch component 6 slides along a lifting plate 45, a guide plate 47 and a lower pressing plate 49 respectively, each punch component 6 points to a punching position, each punch control component 7 is arranged on an upper pressing plate 43, each punch control component 7 is movably matched with the corresponding punch component 6, a female die device 3 is arranged on a frame 1 and extends into the punching position, the female die device 3 comprises a long rod fixedly arranged on the frame 1 and a female die head fixedly arranged at the tail end of the long rod, the female die head extends into the punching position, a pipe is sleeved on the female die head to slide along the female die head during processing, the female die head is used for supporting the pipe at the punching position during punching so as to avoid deformation of the pipe, the prior art is omitted, the upper pressing plate 43 continues to press down after the lower pressing plate 49 pipe, the punch control components 7 extend out, the upper pressing plate 43 drives the punch control components 7 to press down, the corresponding punch components 6 are pressed into the punching position, and the prior art is worthy of, because be equipped with a plurality of drift subassemblies 6, these drift subassemblies 6 can be different shapes, and each drift control assembly 7 stretches out as required, will correspond drift subassembly 6 and press to the punching press position, can very convenient realization different shapes punch a hole, need not to use brick tower punch press, low cost.

In this embodiment, each punch control assembly 7 includes a punch control cylinder 71 and a punch control block 72, a plurality of guide T-shaped grooves 431 are provided at the bottom of the upper press plate 43, each punch control block 72 is mounted at the end of the output end of the corresponding punch control cylinder 71 and slides along the corresponding guide T-shaped groove 431, each punch assembly 6 includes a punch guide rod 61, a punch screw 62 and a punch pin 63, the punch guide rod 61 slides up and down along the lifting plate 45 and the guide plate 47, the punch pin 63 is fixedly mounted on the punch guide rod 61 through the punch screw 62, a lifting T-shaped groove 721 is provided at the lower end of each punch control block 72, each punch screw 62 is embedded in the corresponding lifting T-shaped groove 721 and slides along the corresponding lifting T-shaped groove 721, it is noted that the cross-sectional shapes of the punch pins 63 of each punch assembly 6 are different, when a hole of a certain shape needs to be punched, the corresponding punch control cylinder 71 acts, so that the punch pin screw 62 is embedded into the corresponding lifting T-shaped slot 721, and the punch control block 72 can drive the corresponding punch pin screw 62 to move when moving up and down along with the upper press plate 43, thereby controlling the corresponding punch pin 63 to lift up and down to punch a hole on the pipe.

In this embodiment, each punch assembly 6 further includes a return spring 64, the return spring 64 is sleeved outside the punch pin 63, the upper end of each return spring 64 abuts against the punch guide rod 61, the lower end of the return spring 64 abuts against the lower pressing plate 49, the return spring 64 abuts against the punch guide rod 61, the punch guide rod 61 is prevented from falling, and the punch pin 63 which is temporarily not needed during processing is kept high by the return spring 64, so that the punch pin 63 is prevented from falling.

In this embodiment, the die head assembly 4 further includes a die mounting plate 9 and a punching device 91, the bottom plate 42 is fixedly mounted on the die mounting plate 9, the die mounting plate 9 is fixedly mounted on the frame 1, the punching device 91 includes a punching knife 911 and a punching guide block 912, the punching guide block 912 is fixedly mounted on the die mounting plate 9, the punching guide block 912 is integrally provided with a material guide hole 913 and a punching guide hole 914 which are mutually communicated, the punching knife 911 slides along the punching guide hole 914, in this embodiment, the punching knife 911 is mounted on a movable end of the second oil cylinder 12, the second oil cylinder 12 is fixedly mounted on the frame 1, the material guide hole 913 points to the punching position, the pipe conveying device 2 conveys the pipe to the material guide hole 913 from the punching position, the second oil cylinder 12 acts to convey the punching knife 911 to the punching guide hole 914 to complete cutting of the pipe, blanking holes 92 are respectively disposed at positions of the die mounting plate 9 and the bottom plate 42 corresponding to the punching position, the remainder falls through the blanking holes 92.

The pipe conveying device 2 comprises a pipe conveying base 21, a positioning assembly 22, a pipe conveying power assembly 23, a plurality of guide pillar assemblies 24, two clamp plates 25 and a plurality of clamping power members 26, wherein the pipe conveying base 21 slides along a slide rail 5, each guide pillar assembly 24 is respectively and parallelly installed on the pipe conveying base 21, each clamp plate 25 slides along the guide pillar assembly 24, the outer side of each clamp plate 25 is respectively provided with a centering spring 27, the acting direction of each centering spring 27 points to the inner side of the corresponding clamp plate 25, when the two clamp plates 25 clamp pipes, the centering springs 27 on the outer sides of the two clamp plates 25 are extended in an adaptive manner, it is noted that each centering spring 27 enables the two clamp plates 25 to be adjusted in the transverse position on the guide pillar assembly 24 according to the pipe position adaptability, the pipe cannot be bent when the two clamp plates 25 clamp the pipes, the pipe can adapt to the specific position of the pipe, and the, the anti-slip block 251 is a rubber block to prevent the pipes from slipping, each clamping power part 26 is fixedly arranged on one clamping plate 25, the output end of each clamping power part 26 is fixedly arranged on the other clamping plate 25, the pipe conveying power assembly 23 is arranged on the pipe conveying base 21 and is in transmission connection with the rack 1, the positioning assembly 22 is fixedly arranged on the pipe conveying base 21 between the two clamping plates 25, the positioning assembly 22 is used for positioning the position of the pipes along the axial direction, and after the pipes are positioned along the axial direction by propping against the positioning assembly 22, the clamping power parts 26 act to mutually approach the clamping plates 25 to clamp the pipes.

In this embodiment, the pipe conveying power assembly 23 includes a pipe conveying motor and a pipe conveying gear, a rack is fixedly mounted on the frame 1, the pipe conveying motor is fixedly mounted on the pipe conveying base 21, the pipe conveying gear is fixedly mounted at an output end of the pipe conveying motor and is in transmission connection with the rack, the transmission precision of the rack and the gear is high, and the pipe conveying motor is a servo motor.

The guide post assembly 24 comprises a centering guide post 241, a plurality of guide post mounting seats 242 and a plurality of guide post mounting screws 243, each guide post mounting seat 242 is mounted on the pipe feeding base 21 and is respectively provided with a guide post mounting hole, each pair of centering guide posts 241 penetrate into the corresponding guide post mounting holes, each pair of centering guide posts 241 are fixedly mounted on the guide post mounting holes through the corresponding guide post mounting screws 243, each pair of centering springs 27 are sleeved on the corresponding centering guide post 241, one end of each pair of centering springs 27 abuts against the corresponding guide post mounting seat 242 and the other end abuts against the corresponding clamp plate 25, each clamp plate 25 slides along the corresponding centering guide post 241, each guide post mounting seat 242 is provided with a plurality of clamping screws 244, each guide post mounting seat 242 is provided with a clamping gap 2421, the clamping gap 2421 is communicated with the guide post mounting holes, each clamping screw 244 penetrates through the clamping gap 2421 to reduce the opening degree of the clamping gap 2421, each pair, when the centering guide pillar 241 needs to be dismounted, the guide pillar mounting screw 243 is dismounted, the opening degree of the clamping notch 2421 is increased, the opening degree of the guide pillar mounting hole is also increased, and the mounting screw is dismounted to dismount the centering guide pillar 241; when the centering guide pillar 241 is installed, the centering guide pillar 241 penetrates through the guide pillar installation hole, the clamping screw 244 is installed, the opening degree of the clamping notch 2421 is reduced, the centering guide pillar 241 is clamped in the guide pillar installation hole, then the guide pillar installation screw 243 is screwed, and the guide pillar installation screw 243 realizes axial positioning of the centering guide pillar 241.

Each clamping guide pillar respectively passes through two clamping plates 25, each clamping plate 25 slides along the clamping guide pillar, guide pillar end surface stop blocks are fixedly arranged at two ends of each clamping guide pillar, and when the two clamping plates 25 are clamped, each clamping guide pillar provides guide for the clamping plates 25, so that the clamping plates 25 are not inclined.

The positioning assembly 22 comprises a positioning plate 221 and positioning screws, a plurality of positioning long holes 2211 are formed in the positioning plate 221 along the conveying direction of the pipe conveying base 21, the positioning plate 221 is fixedly mounted on the pipe conveying base 21 through the positioning long holes 2211, and the positioning plate 221 adjusts the position along the conveying direction of the pipe conveying base 21 through the positioning long holes 2211 to realize accurate positioning of the axial position of the pipe.

Having shown and described the fundamental principles and the principal features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. The automatic multi-punch punching machine is characterized by comprising a rack, a pipe conveying device, a female die device and a die head assembly, wherein a slide rail is arranged on the rack, the pipe conveying device slides along the slide rail and is in transmission connection with the rack, the die head assembly comprises a plurality of punch components, a plurality of punch control components, an upper pressing plate, lifting guide pillars, a lifting plate, lifting screws, guide plates, a lower pressing guide pillar, a lower pressing plate, cushion blocks and a bottom plate, the bottom plate is arranged on the rack, two groups of guide wheels are rotatably arranged on the bottom plate along the sliding direction of the pipe conveying device, a punching position is formed between the two groups of guide wheels, the cushion blocks are fixedly arranged on the bottom plate, each lower pressing guide pillar is vertically and fixedly arranged on the bottom plate, the lower pressing plate, the guide plates and the lifting plate all slide along the lower pressing guide pillars, the lifting screws are fixedly connected with the lifting plate and the guide plates, and, each lifting guide pillar is vertically and fixedly arranged on a lifting plate, the upper pressure plate slides along each lifting guide pillar, a limiting step movably clamped with the upper pressure plate is arranged at the top end of each lifting guide pillar, each punch component slides along the lifting plate, the guide plate and the lower pressure plate respectively and points to a punching position, each punch control component is arranged on the upper pressure plate and is movably matched with the corresponding punch component, and the female die device is arranged on the rack and extends into the punching position.

2. The automatic multi-punch hole punching machine of claim 1, wherein each of said punch control assemblies includes a punch control cylinder and a punch control block, said upper platen has a plurality of guide T-slots formed in a bottom portion thereof, each of said punch control blocks is mounted at an end of an output end of a corresponding punch control cylinder and slides along the corresponding guide T-slot, and said punch control block is movably engaged with the corresponding punch assembly.

3. The automatic multi-punch press of claim 2, wherein each of said punch assemblies includes a punch guide bar, a punch screw, and a punch pin, said punch guide bar sliding up and down along said lifting plate and said guide plate, said punch pin being fixedly attached to said punch guide bar by said punch screw, said punch screw being movably engaged with a corresponding punch control block.

4. The automatic multi-punch hole punch of claim 3, wherein each of the punch control blocks has a pull-up T-slot at a lower end thereof, and each of the punch screws is inserted into and slides along the corresponding pull-up T-slot.

5. The automatic multi-punch press of claim 3, wherein each of said punch assemblies further comprises a return spring, said return spring being disposed about said punch pin, an upper end of each of said return springs bearing against said punch guide bar and a lower end of said return spring bearing against said lower platen.

6. The automatic multi-punch punching machine according to claim 1, wherein the die head assembly further comprises a die mounting plate and a punching device, the bottom plate is fixedly mounted on the die mounting plate, the die mounting plate is fixedly mounted on the frame, the punching device comprises a punching knife and a punching guide block, the punching guide block is fixedly mounted on the die mounting plate, the punching guide block is integrally provided with a material guide hole and a punching guide hole which are communicated with each other, the punching knife slides along the punching guide hole, the material guide hole points to the punching position, the female die device extends into the punching position, and blanking holes are formed in positions of the die mounting plate and the bottom plate corresponding to the punching position.

7. The automatic multi-punch piercing press of claim 1, wherein the tube feeding device comprises a tube feeding base, a positioning assembly, a tube feeding power assembly, a plurality of guide post assemblies, two clamping plates and a plurality of clamping power members, the tube feeding base slides along a slide rail, each guide post assembly is respectively mounted on the tube feeding base in parallel, each clamping plate slides along the guide post assembly, an aligning spring is respectively arranged on the outer side of each clamping plate, the acting direction of each aligning spring is directed to the inner side of the corresponding clamping plate, each clamping power member is fixedly mounted on the clamping plate, the output end of each clamping power member is fixedly mounted on the other clamping plate, the tube feeding power assembly is mounted on the tube feeding base and is in transmission connection with the frame, and the positioning assembly is fixedly mounted on the tube feeding base between the two clamping plates.

8. The automatic multi-punch piercing press of claim 7, wherein the tube feeding power assembly comprises a tube feeding motor and a tube feeding gear, a rack is fixedly mounted on the frame, the tube feeding motor is fixedly mounted on the tube feeding base, the tube feeding gear is fixedly mounted at an output end of the tube feeding motor, and the tube feeding gear is in transmission connection with the rack.

9. The automatic multi-punch press of claim 7 wherein the guide post assembly includes a centering guide post, a plurality of guide post mounts, and a plurality of guide post mounting screws, each guide post mount having a guide post mounting hole, each centering guide post passing through a corresponding guide post mounting hole, each centering guide post being fixedly secured to the guide post mounting hole by a corresponding guide post mounting screw, each centering spring being sleeved over a corresponding centering guide post, each centering spring having one end abutting against a corresponding guide post mount and the other end abutting against a corresponding clamp plate, each clamp plate sliding along a corresponding centering guide post.

10. The automatic multi-punch hole punch of claim 9, wherein each of the post mounts is mounted to the tube feeding base and is provided with a plurality of clamping screws, the post mount is provided with a clamping gap communicating with the post mounting hole, and each of the clamping screws passes through the clamping gap to reduce an opening of the clamping gap.

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