CN113857318A

CN113857318A - A accurate stamping device for medical instrument makes

Info

Publication number: CN113857318A
Application number: CN202111185806.9A
Authority: CN
Inventors: 钱菊
Original assignee: Nantong Changjin Medical Technology Co ltd
Current assignee: Nantong Changjin Medical Technology Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of stamping of medical instrument parts, and discloses a precise stamping device for manufacturing medical instruments, which can play an effective pressing role before and in the stamping process of a workpiece to be stamped through the arrangement of a lifting column and a lifting disc, avoid the accidental deviation of the whole workpiece to be stamped due to error contact or the extrusion action of an upper die table, further influence the stamping effect, improve the stamping effect of the medical instruments, ensure that the top end of a compression spring pulls the lifting disc to drive the lifting column to move downwards for a certain height in a natural state through changing the connecting position of the lifting column and the lifting disc, further change the vertical height of a rubber disc in the natural state so as to meet the follow-up pre-pressing requirements on workpieces to be stamped with different thicknesses, realize precise adsorption through the arrangement of a branch valve and the like, and improve the fixing effect of the workpiece to be stamped, further improve the stability of treating the punching press work piece, ensure accurate punching press.

Description

A accurate stamping device for medical instrument makes

Technical Field

The invention relates to the technical field of stamping of medical instrument parts, in particular to an accurate stamping device for manufacturing medical instruments.

Background

The medical device part is a device mechanical part used in medical operation, and generally has the characteristics of high precision, high strength and wear resistance, so that special strict requirements are required for processing, stamping and forming of the medical device part.

In the prior art, a stamping device for processing medical apparatus parts is proposed in Chinese patent publication No. CN213256494U, when the device is used, the clamping block driven by the threaded rod limits and fixes the lower die to prevent displacement in the stamping process, then the connecting rod is driven to move downwards when the upper die is pressed downwards to push the push block and the baffle inwards to protect splashed scraps in the stamping process, although the accurate punching of the medical instrument has a certain auxiliary effect, the accurate punching still has unstable factors when in actual use, wherein, in the initial stage of stamping, the plate to be stamped is easy to slide accidentally due to the reasons of unstable contact or artificial error contact between the upper die and the workpiece to be stamped, and the like, so that the subsequent stamping effect is influenced, therefore, we disclose a precise stamping device for manufacturing medical instruments to meet the requirement of precise stamping of medical instruments.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the accurate stamping device for manufacturing the medical instrument, which has the advantages of high stability and the like, and solves a series of problems that the stamping deviation is easy to cause by unstable workpieces in the stamping process in the prior art.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an accurate stamping device for manufacturing medical instruments comprises a stamping machine, wherein an upper die table and a lower die table which are matched with each other are arranged on the stamping machine, a driving part for driving the upper die table to vertically lift is further arranged on the stamping machine, a workpiece to be stamped for stamping is located at the top of the lower die table, a pre-processing assembly for pre-pressing the workpiece to be stamped is further arranged on the stamping machine, the pre-processing assembly can be hidden and contained in the upper die table along with the stamping process, the pre-processing assembly comprises a lifting column and a rubber disc which are connected with each other, and the lifting disc is connected onto the lifting column through a lifting groove and a limiting clamping block in a sliding and clamping mode;

the pretreatment assembly is also provided with an adjusting assembly capable of adjusting the compression degree of the pretreatment assembly, the adjusting assembly comprises a limiting bolt for limiting the limiting fixture block, the limiting bolt matched with the lifting groove is rotatably sleeved in the lifting groove, the outer wall of the limiting bolt is provided with two matching grooves which correspond to each other in position and are respectively matched with the corresponding limiting fixture block, and the surface of the limiting bolt is also provided with a plurality of circular shaft clamping grooves which are uniformly distributed and have the same thickness as the limiting fixture block;

the top end of the limit bolt extends to the outside of the top of the lifting column and is fixedly connected with a hand wheel used for rotating the limit bolt.

Preferably, the workpiece to be punched is positioned between the upper die table and the lower die table, and the width of the workpiece to be punched is smaller than that of the lower die table;

an upper die and a lower die for punch forming are respectively arranged on the upper die table and the lower die table, and the driving part is driven in a hydraulic or pneumatic mode;

the punching machine is further fixedly provided with a controller electrically connected with the assemblies, and the controller can control the driving part to drive the upper die table to realize lifting operation.

Preferably, the top of the upper die table is provided with a vertical sliding hole, the bottom of the upper die table is provided with a telescopic groove communicated with the vertical sliding hole, the diameter of the telescopic groove is larger than that of the vertical sliding hole, the telescopic groove and the vertical sliding hole are sleeved with the same lifting column in a sliding manner, two ends of the lifting column respectively penetrate through the corresponding vertical sliding hole and the telescopic groove and respectively extend to the two sides of the vertical sliding hole or the telescopic groove, and the bottom end of the lifting column is fixedly connected with the rubber disc matched with the telescopic groove.

Preferably, the lifting column is connected with a lifting disc in a clamping manner, the lifting column is further sleeved with a compression spring, two ends of the compression spring are respectively and fixedly connected to the top of the lifting disc and the top of the upper die table, and the compression spring can enable the rubber disc to be located at the bottom end of the upper die in a natural state.

Preferably, the adjusting assembly comprises an adjusting groove and a limiting fixture block which are matched, the lifting groove is formed in the top end of the lifting column, the adjusting groove corresponding to the two positions and communicated with the lifting groove is formed in the outer wall of the lifting column, the limiting fixture block corresponding to the two positions is fixedly connected to the inner wall of the lifting disc, and the two limiting fixture blocks are respectively sleeved in the corresponding adjusting groove in a sliding mode and extend into the lifting groove.

Preferably, the punching machine is further provided with an adsorption assembly adapted to the pretreatment assembly, and the adsorption assembly can adsorb and fix the bottom of the workpiece to be punched by using the bernoulli chuck principle.

Preferably, the adsorption assembly comprises a plurality of adsorption holes and through holes which are communicated with each other, a plurality of adsorption grooves which are uniformly distributed are formed in the top of the lower die table, a plurality of adsorption holes which are uniformly distributed are formed in the inner wall of the bottom side of each adsorption groove, the through holes which are communicated with the corresponding adsorption holes are formed in the two sides of the punch, the adsorption holes in the two sides of the same straight line are respectively communicated with the through holes in the corresponding sides, and the through holes in the same side are communicated with the same suction pipe;

and an air supply mechanism communicated with the suction pipes at the two ends is also arranged in the punching machine, and the suction pipes at the two sides are fixedly sleeved in the corresponding mounting discs.

Preferably, the adsorption assembly further comprises a branch valve capable of controlling whether the corresponding adsorption hole is ventilated, the suction pipe is provided with a plurality of branch valves, and the branch valves are respectively used for controlling whether the corresponding through hole is communicated with the suction pipe;

the bottom of the upper die table is also provided with a scanner for detecting the external characteristics of the workpiece to be punched, and the scanner is electrically connected with the controller.

(III) advantageous effects

Compared with the prior art, the invention provides the accurate stamping device for manufacturing the medical instrument, which has the following beneficial effects:

1. this an accurate stamping device for medical instrument makes, through the operation of controller control drive part, then make the perpendicular downstream of last mould, it contacts before the top of treating the punching press work piece to contact at last mould, the rubber disc is preferred to contact with the top of treating the punching press work piece, along with the continuous decline of last mould platform, hold-down spring takes place elastic deformation, then through the effect of lift post and lifter plate, make the rubber disc treat the punching press work piece and play abundant compressing effect, until following complete punching press, the rubber disc wholly gets into flexible inslot, then realized treating before the punching press work piece punching press and in the punching press process, the homoenergetic plays effectual effect that compresses tightly, avoid touching or the squeezing action of last mould because of the mistake, make whole punching press work piece of treating take place unexpected skew, and then influence the punching press effect, the punching press effect to medical instrument has been improved.

2. This an accurate stamping device for medical instrument makes, through rotating the hand wheel, make the spacing bolt rotate, and make the spacing fixture block that corresponds be located corresponding adaptation inslot, at this moment, oscilaltion lifting disk to suitable height, the antiport hand wheel, make the spacing bolt reversal, the spacing fixture block joint that corresponds is to corresponding round axle draw-in groove in, then accomplish the height spacing to spacing fixture block, the height of lifting disk has been confirmed promptly, thereby change the hookup location of lifting column and lifting disk, make the top of pressure spring pull the lifting disk under natural state and drive the lifting column certain height downwards, then change the vertical height of rubber dish under the natural state, in order to adapt to follow-up the pre-compaction demand of treating the punching press work piece to different thickness.

3. This an accurate stamping device for medical instrument makes, air supply mechanism operation in through controller control punching machine, then make strong wind pass through the straw by the outside blowout in a plurality of absorption holes, because the bottom gas flow rate of treating the punching press work piece is bigger, then the pressure that the top of treating the punching press work piece received is bigger, thereby treat the punching press work piece and realize contactless effect that compresses tightly, and simultaneously, can also confirm the concrete position of treating the punching press work piece through the effect of scanner, then open or close through the branch valve that controller control corresponds on the position, thereby under the certain prerequisite of wind-force, realize accurate "absorption", the improvement is treated the fixed effect of punching press work piece, further improve the stability of treating the punching press work piece, ensure accurate punching press.

Drawings

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a perspective view of a second embodiment of the present invention;

FIG. 3 is a schematic perspective view of an upper mold table according to the present invention;

FIG. 4 is a schematic view of another perspective structure of the mold loading table according to the present invention;

FIG. 5 is a schematic perspective view of a pre-processing assembly according to the present invention;

FIG. 6 is a schematic view of a disassembled three-dimensional structure of the pretreatment module of the present invention;

FIG. 7 is a schematic perspective view of a lower mold table according to the present invention;

FIG. 8 is a schematic side view of the present invention.

In the figure: 1. a punch press; 2. a drive member; 3. feeding a die table; 4. a lower die table; 5. a workpiece to be punched; 6. a controller; 7. a vertical slide hole; 8. a telescopic groove; 9. a lifting column; 10. a lifting plate; 11. a compression spring; 12. a rubber disc; 13. a lifting groove; 14. an adjustment groove; 15. a limiting clamping block; 16. a limit bolt; 17. an adaptation groove; 18. a circular shaft clamping groove; 19. a hand wheel; 20. a scanner; 21. an adsorption tank; 22. an adsorption hole; 23. a through hole; 24. mounting a disc; 25. a straw; 26. and a branch valve.

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.

As described in the background, the prior art is deficient, and in order to solve the above technical problems, the present application provides a precise stamping device for manufacturing a medical device.

In a typical embodiment of the present application, as shown in fig. 1 to 8, an accurate punching device for manufacturing a medical apparatus comprises a punching machine 1, wherein an upper die table 3 and a lower die table 4 are arranged on the punching machine 1, the upper die table 3 and the lower die table 4 are matched, a driving part 2 for driving the upper die table 3 to vertically lift is further arranged on the punching machine 1, a workpiece 5 to be punched for punching is located on the top of the lower die table 4, and the accurate punching device is characterized in that: the punching machine 1 is also provided with a pretreatment assembly for pre-compressing a workpiece 5 to be punched, the pretreatment assembly can be hidden and contained in the upper die table 3 along with the punching process, the pretreatment assembly comprises a lifting column 9 and a rubber disc 12 which are connected, and a lifting disc 10 is slidably clamped on the lifting column 9 through a lifting groove 13 and a limiting clamping block 15;

the pretreatment assembly is also provided with an adjusting assembly capable of adjusting the compression degree of the pretreatment assembly, the adjusting assembly comprises a limiting bolt 16 for limiting the limiting fixture block 15, the adaptive limiting bolt 16 is rotatably sleeved in the lifting groove 13, the outer wall of the limiting bolt 16 is provided with two adaptive grooves 17 which correspond to each other in position and are respectively adaptive to the corresponding limiting fixture block 15, and the surface of the limiting bolt 16 is also provided with a plurality of circular shaft clamping grooves 18 which are uniformly distributed and have the same thickness as the limiting fixture block 15;

the top end of the limit bolt 16 extends to the outside of the top of the lifting column 9 and is fixedly connected with a hand wheel 19 for rotating the limit bolt 16.

As an implementation manner in the present embodiment, the workpiece 5 to be punched is located between the upper die table 3 and the lower die table 4, and the width of the workpiece 5 to be punched is smaller than the width of the lower die table 4;

in the embodiment, an upper die and a lower die for punch forming are respectively arranged on the upper die table 3 and the lower die table 4, and the driving part 2 is driven in a hydraulic or pneumatic mode;

in this embodiment, still fixed mounting has the controller 6 with the equal electric connection of a plurality of subassemblies on the punching machine 1, and the controller 6 can control drive part 2 and drive the realization lift operation of last mould platform 3, through setting up controller 6, is convenient for make between each subassembly collaborative operation.

As an implementation manner in this embodiment, a vertical sliding hole 7 is opened at the top of the upper die table 3, and a telescopic slot 8 communicated with the vertical sliding hole 7 is opened at the bottom of the upper die table 3, the diameter of the telescopic slot 8 is greater than that of the vertical sliding hole 7, the same lifting column 9 is slidably sleeved in the telescopic slot 8 and the vertical sliding hole 7, two ends of the lifting column 9 respectively penetrate through the corresponding vertical sliding hole 7 and the telescopic slot 8 and respectively extend to the two sides of the vertical sliding hole 7 or the telescopic slot 8, and a rubber disc 12 matched with the telescopic slot 8 is fixedly connected to the bottom end of the lifting column 9, and by arranging the rubber disc 12, the pressing workpiece 5 is conveniently and elastically clamped.

As an implementation manner in this embodiment, the lifting column 9 is connected to a lifting plate 10 in a clamping manner, the lifting column 9 is further connected to a compression spring 11 in a sleeving manner, two ends of the compression spring 11 are respectively and fixedly connected to the top of the lifting plate 10 and the top of the upper mold table 3, and the compression spring 11 can enable the rubber disc 12 to be located at the bottom end of the upper mold in a natural state.

As an implementation manner in this embodiment, the adjusting component includes the adjustment tank 14 and the spacing fixture block 15 of looks adaptation, lift groove 13 has been seted up on the top of lift post 9, and the outer wall of lift post 9 sets up the adjustment tank 14 that two positions are corresponding and all are linked together with lift groove 13, two spacing fixture blocks 15 that the position is corresponding of fixedly connected with on the inner wall of lifter plate 10, and two spacing fixture blocks 15 slide respectively and cup joint in the adjustment tank 14 that corresponds and all extend to in the lift groove 13, through setting up adjustment tank 14, be convenient for change the fixed height of lifter plate 10, in order to change pressure spring 11's compressive strength.

As an implementation manner in this embodiment, the stamping machine 1 is further provided with an adsorption component adapted to the pretreatment component, the adsorption component can adsorb and fix the bottom of the workpiece to be stamped 5 by using the bernoulli chuck principle, and adsorb the workpiece by using the bernoulli chuck principle, so that non-contact fixation can be achieved, and strong adsorption can be achieved under the action of air pressure difference.

As an implementation manner in this embodiment, the adsorption assembly includes a plurality of adsorption holes 22 and through holes 23 that are communicated with each other, a plurality of adsorption grooves 21 that are uniformly distributed are formed in the top of the lower die table 4, a plurality of adsorption holes 22 that are uniformly distributed are formed in the inner wall of the bottom side of the adsorption grooves 21, through holes 23 that are communicated with the corresponding adsorption holes 22 are further formed in both sides of the punch press 1, the adsorption holes 22 on both sides of the same straight line are respectively communicated with the through holes 23 on the corresponding side, and the same suction pipe 25 is communicated with the through holes 23 on the same side;

in this embodiment, the inside of the punch 1 is further provided with an air supply mechanism communicated with the suction pipes 25 at the two ends, the suction pipes 25 at the two sides are fixedly sleeved in the corresponding mounting discs 24, the air is blown outwards through the plurality of adsorption holes 22 by the air supply mechanism, and the adsorption grooves 21 can indirectly play an effective adsorption role in the bottom of the workpiece 5 to be punched according to the relationship between the flow rate and the pressure of the bernoulli fluid.

As an implementation manner in this embodiment, the adsorption assembly further includes a branch valve 26 capable of controlling whether the corresponding adsorption hole 22 is ventilated, the suction pipe 25 is provided with a plurality of branch valves 26, and the plurality of branch valves 26 are respectively used for controlling whether the corresponding through hole 23 is communicated with the suction pipe 25;

in this embodiment, the bottom of the upper die table 3 is further provided with a scanner 20 for detecting external characteristics of the workpiece 5 to be punched, the scanner 20 is electrically connected with the controller 6, the scanner 20 can be used for detecting external characteristics of the workpiece 5 to be punched by setting, and then the controller 6 determines the size of the area to be adsorbed so as to change the opening and closing states of the different branch valves 26.

The working principle of the invention is as follows: when a workpiece 5 to be punched is required to be punched, the workpiece 5 to be punched is placed on the lower die table 4 at a relatively central position, a part to be punched on the workpiece 5 to be punched corresponds to the positions of dies on the upper die table 3 and the lower die table 4, the driving part 2 is controlled to operate through the controller 6, so that the upper die table 3 vertically moves downwards, the rubber disc 12 is preferentially contacted with the top of the workpiece 5 to be punched before the upper die is contacted with the top of the workpiece 5 to be punched, the upper die table 3 continuously descends along with the rubber disc, the compression spring 11 elastically deforms, the rubber disc 12 is fully compressed through the functions of the lifting column 9 and the lifting disc 10 until the whole rubber disc 12 enters the telescopic groove 8 along with complete punching, and then the effect of effective compression before and during punching of the workpiece 5 to be punched is realized, avoid because of the extrusion effect of mistake touching or last moulding stage 3 for whole 5 unexpected squints of treating the punching press work piece, and then influence the punching press effect, improved the punching press effect to medical instrument.

In the stamping process, an operator can also adjust the pressing force of the pressing spring 11 in real time according to parameters such as the specific thickness of the workpiece 5 to be stamped, rotate the hand wheel 19 to rotate the limit bolt 16, and the corresponding limit clamping blocks 15 are positioned in the corresponding adaptive grooves 17, at the moment, the lifting disc 10 is lifted up and down to a proper height, the hand wheel 19 is rotated reversely, the limit bolts 16 are rotated reversely, the corresponding limiting clamping block 15 is clamped into the corresponding round shaft clamping groove 18, so that the height limitation of the limiting clamping block 15 is completed, i.e., the height of the lifting plate 10, is determined, thereby changing the coupling position of the lifting column 9 and the lifting plate 10, the top end of the compression spring 11 pulls the lifting disc 10 to drive the lifting column 9 to move downwards for a certain height in a natural state, and then the vertical height of the rubber disc 12 in the natural state is changed to meet the follow-up pre-compression requirements on workpieces 5 to be stamped with different thicknesses.

Similarly, treat the fixed in-process of punching press work piece 5, still can be through the operation of the air supply mechanism in the controller 6 control punching machine 1, then make the strong wind pass through the straw 25 by a plurality of absorption holes 22 outwards blowout, because the bottom gas flow rate of treating punching press work piece 5 is bigger, then the pressure that the top of treating punching press work piece 5 received is bigger, thereby treat punching press work piece 5 and realize contactless compress tightly the effect, and simultaneously, can also confirm the concrete position of treating punching press work piece 5 through the effect of scanner 20, then open or close through branch valve 26 on the controller 6 control corresponding position, thereby under the certain prerequisite of wind-force, realize accurate "absorption", improve the fixed effect of treating punching press work piece 5, further improve the stability of treating punching press work piece 5, ensure accurate punching press.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an accurate stamping device for medical instrument makes, includes punching machine (1), be equipped with last mould platform (3) and lower mould platform (4) of looks adaptation on punching machine (1), just still be equipped with on punching machine (1) and be used for the drive go up mould platform (3) vertical lift's drive part (2), be used for the punching press treat that punching press work piece (5) are located the top of lower mould platform (4), its characterized in that: the punching machine (1) is further provided with a preprocessing assembly for pre-pressing the workpiece (5) to be punched, the preprocessing assembly can be hidden and contained in the upper die table (3) along with the punching process, the preprocessing assembly comprises a lifting column (9) and a rubber disc (12) which are connected, and the lifting disc (10) is slidably clamped on the lifting column (9) through a lifting groove (13) and a limiting clamping block (15);

the pretreatment assembly is also provided with an adjusting assembly capable of adjusting the compression degree of the pretreatment assembly, the adjusting assembly comprises a limiting bolt (16) used for limiting the limiting fixture block (15), the limiting bolt (16) matched with the lifting groove (13) is rotatably sleeved in the lifting groove, the outer wall of the limiting bolt (16) is provided with two matching grooves (17) which correspond to each other in position and are respectively matched with the corresponding limiting fixture block (15), and the surface of the limiting bolt (16) is also provided with a plurality of circular shaft clamping grooves (18) which are uniformly distributed and are consistent with the thickness of the limiting fixture block (15);

the top end of the limit bolt (16) extends to the outside of the top of the lifting column (9) and is fixedly connected with a hand wheel (19) used for rotating the limit bolt (16).

2. The precision stamping device for medical device manufacturing of claim 1, wherein: the workpiece (5) to be punched is positioned between the upper die table (3) and the lower die table (4), and the width of the workpiece (5) to be punched is smaller than that of the lower die table (4);

an upper die and a lower die for punch forming are respectively arranged on the upper die table (3) and the lower die table (4), and the driving part (2) is driven in a hydraulic or pneumatic mode;

the punching machine (1) is further fixedly provided with a controller (6) electrically connected with the multiple assemblies, and the controller (6) can control the driving part (2) to drive the upper die table (3) to realize lifting operation.

3. The precision stamping device for medical device manufacturing of claim 2, wherein: go up the top of mould platform (3) and seted up perpendicular slide opening (7), just go up the bottom of mould platform (3) seted up with flexible groove (8) that perpendicular slide opening (7) are linked together, the diameter of flexible groove (8) is greater than the diameter of perpendicular slide opening (7), flexible groove (8) and perpendicular slide opening (7) are interior to slide and to be cup jointed same lift post (9), the both ends of lift post (9) run through respectively corresponding perpendicular slide opening (7) and flexible groove (8) and extend to respectively perpendicular slide opening (7) or outside the both sides of flexible groove (8), just the bottom fixedly connected with of lift post (9) with flexible groove (8) looks adaptation rubber disc (12).

4. The precision stamping device for medical device manufacturing of claim 3, wherein: the rubber plate mould is characterized in that a lifting disc (10) matched with the lifting column (9) is clamped on the lifting column (9), a compression spring (11) is further sleeved on the lifting column (9), two ends of the compression spring (11) are respectively and fixedly connected to the lifting disc (10) and the top of the upper mould table (3), and the compression spring (11) can enable the rubber plate (12) to be located at the bottom end of the upper mould in a natural state.

5. The precision stamping device for medical device manufacturing of claim 4, wherein: the adjusting assembly comprises an adjusting groove (14) and a limiting fixture block (15) which are matched, a lifting groove (13) is formed in the top end of the lifting column (9), the outer wall of the lifting column (9) is provided with the adjusting groove (14) which is corresponding in position and communicated with the lifting groove (13), the inner wall of the lifting disc (10) is fixedly connected with the limiting fixture block (15) which is corresponding in position, and the limiting fixture block (15) is respectively sleeved in the adjusting groove (14) in a sliding mode and extends to the lifting groove (13).

6. The precision stamping device for medical device manufacturing of claim 1, wherein: the punching machine (1) is further provided with an adsorption component adaptive to the pretreatment component, and the adsorption component can adsorb and fix the bottom of the workpiece (5) to be punched by utilizing the Bernoulli chuck principle.

7. The precision stamping device for medical device manufacturing of claim 6, wherein: the adsorption assembly comprises a plurality of adsorption holes (22) and through holes (23) which are communicated with each other, a plurality of adsorption grooves (21) which are uniformly distributed are formed in the top of the lower die table (4), a plurality of adsorption holes (22) which are uniformly distributed are formed in the inner wall of the bottom side of the adsorption grooves (21), the through holes (23) which are communicated with the corresponding adsorption holes (22) are formed in the two sides of the punch press (1), the adsorption holes (22) in the two sides on the same straight line are respectively communicated with the through holes (23) in the corresponding side, and the through holes (23) in the same side are communicated with the same suction pipe (25);

an air supply mechanism communicated with the suction pipes (25) at the two ends is further arranged in the punch (1), and the suction pipes (25) at the two sides are fixedly sleeved in the corresponding mounting discs (24).

8. The precision stamping device for medical device manufacturing according to claim 2 or 7, wherein: the adsorption assembly further comprises a branch valve (26) which can control whether the corresponding adsorption hole (22) is ventilated or not, the suction pipe (25) is provided with a plurality of branch valves (26), and the plurality of branch valves (26) are respectively used for controlling whether the corresponding through hole (23) is communicated with the suction pipe (25) or not;

the bottom of the upper die table (3) is also provided with a scanner (20) for detecting the external characteristics of the workpiece (5) to be punched, and the scanner (20) is electrically connected with the controller (6).