CN114192683A

CN114192683A - Punching platform of numerical control punching machine

Info

Publication number: CN114192683A
Application number: CN202111395345.8A
Authority: CN
Inventors: 王一安; 徐鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-03-18

Abstract

The invention relates to the technical field of stamping, in particular to a stamping platform of a numerical control stamping machine, which comprises a stamping platform body, wherein a placing groove is formed in the center of the upper end face of the stamping platform body, a die seat is arranged in the placing groove, sliding grooves are respectively formed in positions, close to corners, of two diagonal lines of the upper end face of the stamping platform body, a clamping mechanism is arranged in each sliding groove, each clamping mechanism comprises an upper clamping plate, an anti-slip mat, a lower clamping plate, a support column, a first-stage threading hole, a cylindrical groove, a sliding rod, a second-stage threading hole, a notch and a first-stage lantern ring, and a movable column is connected with the cylindrical groove in a threaded manner. This numerical control punching machine stamping platform sets up fixture respectively in the position that stamping platform body up end is close to four turnings, with four turning centre gripping posts of panel, prevents that panel from taking place the skew in stamping process, sets up buffer gear below the mould seat for the mould seat obtains the buffering shock attenuation when the punching press, reduces the degree of rocking of mould seat, avoids panel to take place to drop.

Description

Punching platform of numerical control punching machine

Technical Field

The invention relates to the technical field of punching, in particular to a punching platform of a numerical control punching machine.

Background

The punching machine is also called a punch press, and is a punching type press machine. In national production, the stamping process has the advantages of material and energy conservation, high efficiency, low technical requirement on operators and capability of making products which cannot be machined through various die applications compared with the traditional machining, so that the stamping process has wider and wider application. The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size.

Among the prior art, when adopting numerical control punching machine to carry out the punching press to panel, it is direct to place panel on the bed die seat mostly, panel is direct when placing on the bed die seat, the in-process of mould punching press down is driven to the cylinder, the punching press platform produces easily and rocks, can lead to placing panel production skew and then influence the punching press precision on the bed die seat, cause the product defective percentage to show the increase, increase enterprise manufacturing cost, especially for almag panel, the quality is compared in other types of metal lighter, place the stage at the punching press, the shake that mechanical motion produced, it slightly squints to influence the point of placing more easily.

Disclosure of Invention

The invention aims to provide a stamping platform of a numerical control stamping machine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a stamping platform of a numerical control stamping machine comprises a stamping platform body, wherein a placing groove is formed in the center of the upper end face of the stamping platform body, a die seat is arranged in the placing groove, sliding grooves are respectively formed in the positions, close to corners, of two diagonal lines of the upper end face of the stamping platform body, a clamping mechanism is arranged in each sliding groove and comprises an upper clamping plate, an anti-slip pad, a lower clamping plate, a supporting column, a first-stage threading hole, a cylindrical groove, a sliding rod, a second-stage threading hole, a notch and a first-stage lantern ring, the supporting column is arranged in each sliding groove, the cylindrical groove is formed in the upper end face of the supporting column, a movable column is connected in the cylindrical groove in a threaded mode, the upper clamping plate is fixedly connected to the upper end of the movable column, the lower clamping plate is arranged below the upper clamping plate, the first-stage threading hole is formed in the center of the inside of the supporting column, the lower end of the supporting column is fixedly connected to the upper end of the first-stage lantern ring, the first-stage lantern ring is sleeved on the sliding rod, the outer surface of the sliding rod is of a smooth surface stainless steel structure, a notch is formed in the upper end of the sliding rod, a second-stage threading hole is formed in the center of the inner portion of the sliding rod, the notch penetrates through the position of the second-stage threading hole, grooves are formed in the lower ends of the side line positions of the front face, the rear face, the left face and the right face of the die seat, fixing rings are fixedly connected into the grooves, a third-stage threading hole is formed between each groove and the corresponding second-stage threading hole, a steel strand is arranged in each third-stage threading hole, one end of each steel strand is fixedly connected with each fixing ring, the other end of each steel strand sequentially penetrates through the second-stage threading holes, penetrates through the first-stage lantern ring and penetrates through the first-stage threading holes to be fixedly connected with the center of the lower end face of each movable column, a buffer mechanism is arranged below the die seat and comprises a cylindrical hole, a movable rod and a third-stage spring, the upper end of the movable rod is fixedly connected to the lower end of the die seat at positions close to four corners respectively, the utility model discloses a three-stage spring die holder, including standing groove, cylinder hole, movable rod, tertiary spring cover, die holder, guide mechanism, three-stage spring, and three-stage spring.

Preferably, the activity post surface is smooth surface stainless steel construction, the inside screw thread section of thick bamboo that offers in activity post upper end, and threaded cylinder internal screw thread have a screw thread post, the screw thread post runs through the lower terminal surface left side of punch holder to the punch holder top, the punch holder left surface set up threaded hole, and fixing bolt twists threaded hole and with punch holder and screw thread post fixed connection.

Preferably, a primary spring is arranged in the cylindrical groove at the upper end of the support column, the upper end of the primary spring is fixedly connected with the outer edge of the lower end face of the movable column, and the lower end of the primary spring is fixedly connected with the outer edge of the lower end face of the cylindrical groove.

Preferably, the inboard fixedly connected with ceramic packing ring of the one-level lantern ring, and the one-level through wires hole lower extreme that the inside central point of pillar put runs through the one-level lantern ring and ceramic packing ring and the second grade through wires hole intercommunication of notch below, the inside right side fixedly connected with blotter of notch, the slide bar left side cover is equipped with the second grade spring, and the left end of second grade spring and the inside left surface fixed connection of spout to the right-hand member of second grade spring and the left surface fixed connection of the one-level lantern ring.

Preferably, lower plate left end fixedly connected with loose ring, and loose ring slip cover establish in the pillar upper end, the lower plate below is provided with the backup pad, and backup pad left end and pillar fixed connection, be provided with the level four spring between lower plate and the backup pad, the upper end and the lower plate lower extreme terminal surface fixed connection of level four spring, and level four spring lower extreme and backup pad up end fixed connection.

Preferably, guiding mechanism includes guide way, guide bar, the second grade lantern ring, ceramic backing ring and crash pad, the central point that four sides were all around seted up in the standing groove is put, and guide bar fixed connection puts at the inside central point of guide way, second grade lantern ring left end respectively with the mould seat all around the lower extreme fixed connection of four sides, and the second grade lantern ring slip cap is established on the guide bar, the medial surface fixedly connected with ceramic backing ring of the second grade lantern ring, crash pad both ends about the inside of guide way are fixed connection respectively.

Compared with the prior art, the invention has the beneficial effects that:

1. clamping mechanisms are respectively arranged at the positions, close to the four corners, of the upper end surface of the stamping platform body, and are used for clamping the four corners of the plate by the columns, so that the plate is prevented from shifting in the stamping process;

2. a buffer mechanism is arranged below the die seat, so that the die seat is buffered and damped during stamping, the shaking degree of the die seat is reduced, and plates are prevented from falling off;

drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a perspective view of the clamping mechanism of the present invention;

FIG. 5 is a perspective view of a slide bar of the present invention;

FIG. 6 is an enlarged view of the invention at C of FIG. 2;

FIG. 7 is an enlarged view taken at D of FIG. 2 in accordance with the present invention;

fig. 8 is an enlarged view of the invention at E in fig. 3.

Description of reference numerals:

1. stamping a platform body; 11. a chute; 12. a placement groove; 13. three-level threading holes; 2. steel strand wires; 3. a mold base; 31. a groove; 32. a fixing ring; 4. a secondary spring; 5. a buffer mechanism; 51. a cylindrical bore; 52. a movable rod; 53. a tertiary spring; 6. a clamping mechanism; 61. an upper splint; 62. a non-slip mat; 63. a lower splint; 631. a movable ring; 632. a four-stage spring; 633. a support plate; 64. a pillar; 641. a first-level threading hole; 642. a cylindrical groove; 643. a primary spring; 65. a slide bar; 651. a second-level threading hole; 652. a notch; 653. a cushion pad; 66. a primary collar; 661. a ceramic gasket; 7. a movable post; 71. a threaded barrel; 72. a threaded post; 73. fixing the bolt; 74. a threaded hole; 8. a guide mechanism; 81. a guide groove; 82. a guide bar; 83. a secondary collar; 831. a ceramic backing ring; 84. an anti-collision cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a stamping platform of a numerical control stamping machine comprises a stamping platform body 1, wherein a placing groove 12 is formed in the center of the upper end face of the stamping platform body 1, a die seat 3 is arranged in the placing groove 12, sliding grooves 11 are respectively formed in positions, close to corners, of two diagonal lines of the upper end face of the stamping platform body 1, a clamping mechanism 6 is arranged in each sliding groove 11, each clamping mechanism 6 comprises an upper clamping plate 61, an anti-skid pad 62, a lower clamping plate 63, a supporting column 64, a primary threading hole 641, a cylindrical groove 642, a sliding rod 65, a secondary threading hole 651, a notch 652 and a primary lantern ring 66, the supporting column 64 is arranged in each sliding groove 11, the cylindrical groove 642 is formed in the upper end face of the corresponding supporting column 64, a movable column 7 is connected in the cylindrical groove 642 in a threaded manner, the upper clamping plate 61 is fixedly connected to the upper end of the movable column 7, the lower clamping plate 63 is arranged below the upper clamping plate 61, and the primary threading hole 641 is formed in the center of the inner portion of the corresponding supporting column 64, the lower end of the strut 64 is fixedly connected to the upper end of a first-level lantern ring 66, the first-level lantern ring 66 is sleeved on a sliding rod 65, the outer surface of the sliding rod 65 is of a smooth surface stainless steel structure, a notch 652 is formed in the upper end of the sliding rod 65, a second-level threading hole 651 is formed in the center of the inside of the sliding rod 65, the notch 652 penetrates through the position of the second-level threading hole 651, grooves 31 are formed in the lower ends of the sideline positions of the front, the rear, the left and the right sides of the die seat 3, fixing rings 32 are fixedly connected into the grooves 31, a third-level threading hole 13 is formed between the grooves 31 and the second-level threading hole 651, steel strands 2 are arranged in the third-level threading hole 13, one end of each steel strand 2 is fixedly connected with the fixing rings 32, and the other end of each steel strand 2 sequentially penetrates through the second-level threading holes 651, the first-level lantern ring 66 and the center of the lower end face of each steel strand 641 and the movable column 7, the utility model discloses a three-stage spring mold, including standing groove 12, die holder 3, buffer gear 5, movable rod 52 and tertiary spring 53, the position that the terminal surface is close to four turnings under die holder 3 is provided with buffer gear 5 in die holder 3 below, buffer gear 5 includes cylinder hole 51, movable rod 52 and tertiary spring 53, fixed connection is close to four turnings positions at the terminal surface under standing groove 12 is seted up to cylinder hole 51 correspondence respectively, in movable rod 52 lower extreme inserts cylinder hole 51, and tertiary spring 53 cover establishes at movable rod 52 surface, tertiary spring 53 upper end fixed connection is terminal surface under die holder 3, and tertiary spring 53 lower extreme fixed connection is at the inside terminal surface down of standing groove 12, four inside side central point of standing groove 12 put and all be provided with guiding mechanism 8.

During operation, a plate is placed on the upper end face of the die holder 3, four corners of the plate are respectively placed between the upper clamping plate 61 and the lower clamping plate 63 of the clamping mechanism 6, a punching machine is started to punch the plate, the die holder 3 moves downwards along the placing groove 12 under the punching action of the punching machine, the die holder 3 can suddenly descend due to the larger punching force generated by the punching machine on the die holder 3, the die holder 3 drives the movable rod 52 to move downwards along the cylindrical hole 51, the descending speed of the die holder 3 is slowed down under the buffering action of the tertiary spring 53, so that the large shaking is avoided, the plate is prevented from shifting or falling on the die holder 3, the punching efficiency of the plate is improved, one end of the steel strand 2 is fixedly connected with the fixing ring 32, and the other end of the steel strand sequentially penetrates through the secondary threading hole 651, penetrates through the primary lantern ring 66 and penetrates through the primary threading hole 641 to be fixedly connected with the center position of the lower end face of the movable column 7, thereby make mould seat 3 when removing downwards through the circular arc ceramic gasket of 2 pulling activity posts 7 downstream of steel strand wires drive punch holder 61 and remove downwards and press from both sides four turnings of panel tightly, and then prevent that panel from taking place the skew in stamping process, the convex ceramic gasket of left end play line mouth lower extreme fixedly connected with of tertiary through wires hole 13, the convex ceramic gasket of upper end fixedly connected with of recess 31, thereby reduce the continuous friction loss with the upper end of recess 31 and between the left end play line mouth of tertiary through wires hole 13 among the pulling process of steel strand wires 2, thereby improve the life of steel strand wires 2, thereby steel strand wires 2 moves downwards along with mould seat 3 and pulls pillar 64 and inwards slide along slide bar 65, the equal fixedly connected with slipmat 62 of lower terminal surface of punch holder 61 and the up end of lower plate 63, slipmat 62 and four turning up end and the lower terminal surface in-process and the punch holder 3 internal recess of panel under the punching press effect with punch holder 61 and lower splint 61, thereby prevent that panel from The clamping plates 63 fall off, the clamping degree of the plates is further improved, and the plates are prevented from being deviated in the stamping process.

As an embodiment of the present invention, as shown in fig. 2, 4 and 6, the outer surface of the movable column 7 is a smooth surface stainless steel structure, a threaded cylinder 71 is provided inside the upper end of the movable column 7, a threaded column 72 is screwed in the threaded cylinder 71, the threaded column 72 penetrates through the left side of the lower end surface of the upper clamping plate 61 to be above the upper clamping plate 61, a threaded hole 74 is provided on the left side surface of the upper clamping plate 61, and a fixing bolt 73 is screwed into the threaded hole 74 to fixedly connect the upper clamping plate 61 and the threaded column 72.

During operation, according to the thickness of panel, the fixing bolt 73 of unscrewing, then screw thread post 72 makes thread post 72 rise or descend along a screw thread section of thick bamboo 71, upwards or after sliding the distance between punch holder 61 and the lower plate 63 has been adjusted to punch holder 61 downwards, thereby fixing bolt 73 of screwing once more fixes punch holder 61 and thread post 72, the setting up of this structure has made things convenient for fixture 6 to carry out stable centre gripping to the panel of different thickness, and then prevents that panel from taking place the skew at the punching press in-process.

As an embodiment of the present invention, as shown in fig. 2 and 6, a primary spring 643 is disposed in a cylindrical groove 642 at an upper end of the strut 64, an upper end of the primary spring 643 is fixedly connected to a lower end surface outer edge of the movable column 7, and a lower end of the primary spring 643 is fixedly connected to a lower end surface outer edge of the cylindrical groove 642.

In operation, based on the above-described embodiment, the movable column 7 moves downward when being pulled by the steel strand 2, because the die seat 3 is pressed down rapidly by a large impact force in the process of stamping the sheet material, the steel strand 2 is driven to pull down the movable column 7 suddenly, the upper end of the primary spring 643 is fixedly connected with the outer edge of the lower end surface of the movable column 7, the lower end of the movable column is fixedly connected with the outer edge of the lower end surface of the cylindrical groove 642, so that the movable column 7 is buffered in the process of descending suddenly, the movable column 7 is prevented from directly colliding with the lower end surface in the cylindrical groove 642 to cause damage, thereby prolonging the service life of the clamping mechanism 6, and after the punching is finished, the movable column 7 rebounds under the action of the primary spring 643, thereby drive the punch holder 61 and kick-back to the normal position for four turnings and the fixture 6 of panel break away from, and then make things convenient for follow-up uninstallation to panel.

As an embodiment of the present invention, as shown in fig. 2, 4, 5 and 6, a ceramic washer 661 is fixedly connected to an inner side of the primary collar 66, a lower end of a primary threading hole 641 at a central position in the support 64 penetrates through the primary collar 66 and the ceramic washer 661 to communicate with a secondary threading hole 651 below the notch 652, a cushion 653 is fixedly connected to a right side in the notch 652, a secondary spring 4 is sleeved on a left side of the sliding rod 65, a left end of the secondary spring 4 is fixedly connected to a left side surface in the sliding chute 11, and a right end of the secondary spring 4 is fixedly connected to a left side surface of the primary collar 66.

During operation, based on the above embodiment, because the lower end of the supporting column 64 is fixedly connected to the upper end of the first-stage lantern ring 66, the first-stage lantern ring 66 is slidably sleeved on the sliding rod 65, so that the steel strand 2 generates pulling force to the supporting column 64 when the movable column 7 is pulled to move downwards, the first-stage lantern ring 66 slides inwards along the sliding rod 65, the ceramic washer 661 inside the first-stage lantern ring 66 can reduce the friction loss between the first-stage lantern ring 66 and the sliding rod 65, the corner position of the contact position of the ceramic washer 661 and the steel strand 2 is in an arc-shaped structure, the friction loss between the steel strand 2 and the ceramic washer 661 is reduced, meanwhile, the cushion 653 fixedly connected to the right side inside the notch 652 can prevent the steel strand 2 from colliding with the right side inside the notch 652, so as to prolong the service life of the steel strand 2, the left end of the secondary spring 4 is fixedly connected to the left side inside the sliding chute 11, and the right end of the secondary spring is fixedly connected to the left side of the first-stage lantern ring 66, thereby make pillar 64 obtain the buffering of second grade spring 4 when violently moving right, avoid pillar 64 and the inside right side wall of spout 11 to bump and cause the damage to improve fixture 6's life, can pull back fixture 6 normal position after the punching press is ended simultaneously, automatic re-setting, the convenience is fixed to the centre gripping of follow-up panel.

As an embodiment of the present invention, as shown in fig. 2, a movable ring 631 is fixedly connected to a left end of the lower clamp 63, the movable ring 631 is slidably sleeved on an upper end of the pillar 64, a support plate 633 is disposed below the lower clamp 63, a left end of the support plate 633 is fixedly connected to the pillar 64, a four-stage spring 632 is disposed between the lower clamp 63 and the support plate 633, an upper end of the four-stage spring 632 is fixedly connected to a lower end surface of the lower clamp 63, and a lower end of the four-stage spring 632 is fixedly connected to an upper end surface of the support plate 633.

In operation, based on the above-mentioned embodiment, punch holder 61 and lower plate 63 grasp four turnings of panel, move mould seat 3 while lapse when the punching machine punches to panel, make the corner of panel also move down, because lower plate 63 left end fixedly connected with activity ring 631, and activity ring 631 slides the cover and establishes in pillar 64 upper end, thereby lower plate 63 that makes moves down along with panel together under the drive of panel, and simultaneously, because be provided with level four spring 632 between lower plate 63 and the backup pad 633, thereby make lower plate 63 move up thrust all the time, thereby guarantee that lower plate 63 can cooperate punch holder 61 with the turning centre gripping post of panel, be unlikely to take place to take off with panel in the in-process that moves down, thereby guarantee that panel can not take place the skew, improve the punching press effect.

As an embodiment of the present invention, as shown in fig. 3 and 8, the guide mechanism 8 includes a guide groove 81, a guide rod 82, a secondary collar 83, a ceramic pad ring 831, and a crash pad 84, the guide groove 81 is opened at a central position of four front, rear, left, and right sides inside the placement groove 12, the guide rod 82 is fixedly connected to an inner central position of the guide groove 81, a left end of the secondary collar 83 is fixedly connected to lower ends of four front, rear, left, and right sides of the mold base 3, the secondary collar 83 is slidably sleeved on the guide rod 82, an inner side surface of the secondary collar 83 is fixedly connected to the ceramic pad ring 831, and the crash pad 84 is fixedly connected to upper and lower ends inside the guide groove 81.

In operation, based on above-mentioned embodiment, drive the second grade lantern ring 83 along guide bar 82 downstream when mould seat 3 moves down, because four sides all around of second grade lantern ring 83 fixed connection is at mould seat 3, so the second grade lantern ring 83 carries out vertical direction's downstream along guide bar 82 all the time, thereby make mould seat 3 move down along vertical direction all the time, avoid mould seat 3 to produce in stamping process and rock and lead to panel skew or drop, the medial surface fixed connection ceramic backing ring 831 of second grade lantern ring 83 can reduce the friction loss between second grade lantern ring 83 and the guide bar 82, the crash pad 84 at both ends about the guide bar 82 can avoid the second grade lantern ring 83 to bump and damage with the inside lower terminal surface and the up end emergence of guide way 81 in the in-process that moves down and kick-back simultaneously.

The working principle is as follows: the plate is placed on the upper end face of the die seat 3, four corners of the plate are respectively placed between the upper clamping plate 61 and the lower clamping plate 63 of the clamping mechanism 6, the fixing bolt 73 is unscrewed according to the thickness of the plate, then the threaded column 72 is rotated to enable the threaded column 72 to ascend or descend along the threaded barrel 71, after the upper clamping plate 61 slides upwards or downwards to adjust the distance between the upper clamping plate 61 and the lower clamping plate 63, the fixing bolt 73 is screwed again to fix the upper clamping plate 61 and the threaded column 72, the structure facilitates the clamping mechanism 6 to stably clamp the plates with different thicknesses, the plates are prevented from being deviated in the stamping process, the stamping machine is started to stamp the plates, the die seat 3 moves downwards along the placing groove 12 under the stamping effect of the stamping machine, and as one end of the steel strand 2 is fixedly connected with the fixing ring 32, and the other end sequentially penetrates through the second-level threading holes 651, Run through the first-level lantern ring 66 and pass through the first-level threading hole 641 to be fixedly connected with the center position of the lower end face of the movable column 7, so that the die holder 3 moves downwards and simultaneously pulls the movable column 7 to move downwards through the steel strand 2 to drive the upper clamping plate 61 to move downwards to clamp four corners of the plate, thereby preventing the plate from shifting in the stamping process, the steel strand 2 moves downwards along with the die holder 3 to pull the pillar 64 to slide inwards along the sliding rod 65, the lower end face of the upper clamping plate 61 and the upper end face of the lower clamping plate 63 are both fixedly connected with the anti-slip pads 62, the anti-slip pads 62 are in close contact with the upper end faces and the lower end faces of the four corners of the plate, thereby preventing the plate from falling off from the upper clamping plate 61 and the lower clamping plate 63 in the process of sinking into the die holder 3 under the stamping action of the stamping machine, further improving the clamping degree of the plate, preventing the plate from shifting in the stamping process, because the left end of the lower clamp 63 is fixedly connected with the movable ring 631, and the movable ring 631 is slidably sleeved on the upper end of the pillar 64, the lower clamp 63 can move downwards along with the plate under the driving of the plate, meanwhile, because the four-stage spring 632 is arranged between the lower clamp 63 and the supporting plate 633, the lower clamp 63 can always move upwards to push the lower clamp 63, so that the lower clamp 63 can be matched with the upper clamp 61 to clamp the corner of the plate to the pillar, the plate is not loosened during the downward movement process, the plate can not be deviated, the stamping effect is improved, because the stamping machine can generate larger stamping force on the die holder 3, the die holder 3 can violently descend, the die holder 3 drives the movable rod 52 to move downwards along the cylindrical hole 51, under the buffer action of the three-stage spring 53, the descending speed of the die holder 3 is slowed down, and thus the generation of larger shaking is avoided, further, the situation that the plate is shifted or dropped on the die holder 3 is avoided, the punching efficiency of the plate is improved, when the die holder 3 moves downwards, the secondary lantern ring 83 is driven to move downwards along the guide rod 82, because the secondary lantern ring 83 is fixedly connected with the front side, the rear side, the left side, the right side and the right side of the die holder 3, the secondary lantern ring 83 always moves downwards along the guide rod 82 in the vertical direction, so that the die holder 3 always moves downwards along the vertical direction, the phenomenon that the plate is shifted or dropped due to shaking of the die holder 3 in the punching process is avoided, the friction loss between the secondary lantern ring 83 and the guide rod 82 can be reduced due to the fact that the ceramic backing ring 831 is fixedly connected with the inner side of the secondary lantern ring 83, meanwhile, the anti-collision pads 84 at the upper end and the lower end of the guide rod 82 can avoid the secondary lantern ring 83 from colliding with the inner lower end face and the upper end face of the guide groove 81 and being damaged in the process of moving downwards and rebounding, and the die holder 3 can be pressed downwards rapidly due to the large impact force in the punching process, thereby driving the steel strand 2 to pull down the movable column 7 suddenly, fixedly connecting the upper end of the primary spring 643 with the outer edge of the lower end face of the movable column 7, fixedly connecting the lower end of the primary spring 643 with the outer edge of the lower end face of the cylindrical groove 642, buffering the movable column 7 in the sudden descending process, avoiding the damage caused by the collision of the movable column 7 with the inner lower end face of the cylindrical groove 642 directly, further prolonging the service life of the clamping mechanism 6, after the punching is finished, the movable column 7 rebounds under the action of the primary spring 643 to drive the upper clamping plate 61 to rebound to the original position, separating the four corners of the plate from the clamping mechanism 6, further facilitating the subsequent unloading of the plate, because the lower end of the support column 64 is fixedly connected with the upper end of the primary lantern ring 66, the primary lantern ring 66 is slidably sleeved on the sliding rod 65, and leading the steel strand 2 to generate pulling force to the support column 64 when pulling the movable column 7 to move downwards, so that the primary lantern ring 66 slides inwards along the sliding rod 65, the ceramic washer 661 on the inner side of the primary lantern ring 66 can reduce the friction loss between the primary lantern ring 66 and the sliding rod 65, the corner position of the contact position of the ceramic washer 661 and the steel strand 2 is in an arc-shaped structure, the friction loss between the steel strand 2 and the ceramic washer 661 is reduced, thereby prolonging the service life of the steel strand 2, the left end of the secondary spring 4 is fixedly connected with the left side surface inside the chute 11, the right end of the supporting column is fixedly connected with the left side surface of the first-level lantern ring 66, so that the supporting column 64 is buffered by the second-level spring 4 when moving rightwards suddenly, the supporting column 64 is prevented from colliding with the right side wall inside the sliding chute 11 to cause damage, thereby improve fixture 6's life, can pull back fixture 6 normal position after the punching press simultaneously, automatic re-setting makes things convenient for the centre gripping of follow-up panel to be fixed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a numerical control punching machine punching press platform, includes punching press platform body (1), its characterized in that: the stamping platform comprises a stamping platform body (1), wherein a placing groove (12) is formed in the center of the upper end face of the stamping platform body (1), a die seat (3) is arranged in the placing groove (12), sliding grooves (11) are respectively formed in positions, close to corners, of two diagonal lines of the upper end face of the stamping platform body (1), a clamping mechanism (6) is arranged in each sliding groove (11), each clamping mechanism (6) comprises an upper clamping plate (61), an anti-skid pad (62), a lower clamping plate (63), a supporting column (64), a primary threading hole (641), a cylindrical groove (642), a sliding rod (65), a secondary threading hole (651), a notch (652) and a primary lantern ring (66), the supporting column (64) is arranged in each sliding groove (11), the cylindrical groove (642) is formed in the upper end face of the supporting column (64), a movable column (7) is connected to the cylindrical groove (642) in an internal thread manner, and the upper clamping plate (61) is fixedly connected to the upper end of the movable column (7), the lower splint (63) is arranged below the upper splint (61), the first-level threading hole (641) is arranged in the center position in the interior of the strut (64), the lower end of the strut (64) is fixedly connected to the upper end of the first-level lantern ring (66), the first-level lantern ring (66) is sleeved on the slide bar (65), the outer surface of the slide bar (65) is of a smooth surface stainless steel structure, the notch (652) is arranged in the upper end of the slide bar (65), the second-level threading hole (651) is arranged in the center position in the interior of the slide bar (65), the notch (652) penetrates through the position of the second-level threading hole (651), the lower ends of the sideline positions of the front side, the rear side, the left side and the right side of the mold base (3) are respectively provided with a groove (31), the inner fixedly connected with a fixing ring (32) of the groove (31) and the second-level threading hole (651) are provided with a third-level threading hole (13), and a steel strand (2) is arranged in the third-level threading hole (13), one end of the steel strand (2) is fixedly connected with the fixing ring (32), the other end of the steel strand (2) sequentially penetrates through the second-stage threading hole (651), penetrates through the first-stage lantern ring (66) and penetrates through the first-stage threading hole (641) to be fixedly connected with the center of the lower end face of the movable column (7), a buffer mechanism (5) is arranged below the mold base (3), the buffer mechanism (5) comprises a cylindrical hole (51), a movable rod (52) and a third-stage spring (53), the upper end of the movable rod (52) is respectively and fixedly connected to the positions, close to four corners, of the lower end face of the mold base (3), the cylindrical hole (51) is correspondingly formed in the inner part of the placing groove (12), the positions, close to the four corners, of the lower end face of the movable rod (52) are inserted into the cylindrical hole (51), the third-stage spring (53) is sleeved on the outer surface of the movable rod (52), the upper end of the third-stage spring (53) is fixedly connected to the lower end face of the mold base (3), and the lower end of the three-level spring (53) is fixedly connected to the lower end face in the placing groove (12), and the center positions of four side faces in the placing groove (12) are provided with guide mechanisms (8).

2. A stamping platform for a numerically controlled press as claimed in claim 1, wherein: activity post (7) surface is smooth surface stainless steel construction, the inside screw thread section of thick bamboo (71) of seting up in activity post (7) upper end, and threaded cylinder (71) internal screw joint has screw thread post (72), screw thread post (72) run through the lower terminal surface left side of punch holder (61) to punch holder (61) top, punch holder (61) left surface set up threaded hole (74), and fixing bolt (73) twist screw hole (74) in with punch holder (61) and screw thread post (72) fixed connection.

3. A stamping platform for a numerically controlled press as claimed in claim 1, wherein: a primary spring (643) is arranged in a cylindrical groove (642) at the upper end of the strut (64), the upper end of the primary spring (643) is fixedly connected with the outer edge of the lower end face of the movable column (7), and the lower end of the primary spring (643) is fixedly connected with the outer edge of the lower end face of the cylindrical groove (642).

4. A stamping platform for a numerically controlled press as claimed in claim 1, wherein: inboard fixedly connected with ceramic washer (661) of one-level lantern ring (66), and one-level through wires hole (641) lower extreme that pillar (64) inside central point put runs through one-level lantern ring (66) and ceramic washer (661) and second grade through wires hole (651) intercommunication of notch (652) below, the inside right side fixedly connected with blotter (653) of notch (652), slide bar (65) left side cover is equipped with second grade spring (4), and the left end of second grade spring (4) and the inside left surface fixed connection of spout (11) to the right-hand member of second grade spring (4) and the left surface fixed connection of one-level lantern ring (66).

5. A stamping platform for a numerically controlled press as claimed in claim 1, wherein: lower plate (63) left end fixedly connected with activity ring (631), and activity ring (631) slip cap establishes in pillar (64) upper end, lower plate (63) below is provided with backup pad (633), and backup pad (633) left end and pillar (64) fixed connection, be provided with level four spring (632) between lower plate (63) and backup pad (633), terminal surface fixed connection under the upper end of level four spring (632) and lower plate (63), and level four spring (632) lower extreme and backup pad (633) up end fixed connection.

6. A stamping platform for a numerically controlled press as claimed in claim 1, wherein: guiding mechanism (8) are including guide way (81), guide bar (82), the second grade lantern ring (83), ceramic backing ring (831) and crashproof pad (84), the central point that sets up four sides all around in standing groove (12) inside is put in guide way (81), and guide bar (82) fixed connection puts at the inside central point of guide way (81), the second grade lantern ring (83) left end respectively with mould seat (3) all around the lower extreme fixed connection of four sides, and second grade lantern ring (83) slip cap is established on guide bar (82), the medial surface fixedly connected with ceramic backing ring (831) of second grade lantern ring (83), both ends about crashproof pad (84) fixed connection is in the inside of guide way (81) respectively.