Positioning device for stamping machining of medical instruments

Abstract

The invention relates to the technical field of positioning clamps, in particular to a positioning device for stamping medical appliances, which comprises a mounting box, a rotating mechanism is fixedly mounted at the bottom end in the mounting box, a rotating circular plate is rotatably connected in the mounting box, and the rotating mechanism drives the rotating circular plate to rotate. A limiting mechanism capable of limiting the nail abutting base is fixedly installed at the upper end of the rotating circular plate, a punching machine capable of punching the nail abutting base in the limiting mechanism is further fixedly installed in the mounting box, a punching module is fixedly installed at the output end of the punching machine, and a feeding mechanism capable of feeding materials into the limiting mechanism is further fixedly installed in the mounting box. And the nail abutting seat in the inner wall of the limiting pipe is limited through the limiting clamping strip, so that the nail abutting seat is fixed more stably, and the effect of accurate positioning is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning fixtures, in particular to a positioning device for stamping processing of medical instruments. Background Art

[0002] Stamping equipment is often needed in the process of reproducing medical devices. Among them, staplers are medical devices that replace manual suturing. The main working principle is to use titanium staples to separate or staple tissues. Similar to staplers, they are composed of a handle body, a push knife, a staple cartridge seat, and an anvil seat. During the suturing operation, the distance between the anvil seat and the staple cartridge seat is adjusted according to the suture thickness. The process of punching holes for the anvil is cumbersome, as the anvil needs to be manually clamped in the limited limit groove, and then a hole is punched into the outer wall of the anvil. Since the stapler is used in the medical field, the workmanship requirements are very high. Therefore, after the holes in the anvil are punched, the anvil will be embedded in the fixed container, making it very troublesome to remove. The anvils need to be placed in groups for punching, which is a cumbersome process and a waste of manpower.

[0003] Chinese patent (publication number CN217550985U), this patent technology discloses a positioning device for stamping processing of medical instruments, including an interchangeable plate, a accommodating cavity is provided on the interchangeable plate, a plurality of vertical positioning components are provided above the accommodating cavity, a nail support is installed in the accommodating cavity, a plurality of mirror-imaged lateral inclined platforms are provided on both sides of the accommodating cavity, a limiting groove is provided at one end of the accommodating cavity, a supporting profile is provided at the lower end of the accommodating cavity, the vertical positioning component includes two positioning bolts, and a pressure block is provided between the two positioning bolts. The beneficial effects of the utility model are: the interchangeable plate, the accommodating cavity and the vertical positioning component are used in combination to achieve the effect of fast and accurate positioning, and the two ends and the lower end face of the nail support are positioned by the limiting groove and the supporting profile in the accommodating cavity, and the upper end face of the nail support is positioned by the lateral inclined platform, the positioning bolt and the pressure block. The structure is simple, the clamping is fast, the positioning is accurate and without deviation, the coaxiality of the nail groove processing at the lower end of the nail support is ensured, and the production efficiency is improved.

[0004] According to the above scheme, when in use, it is necessary to place the anvil inside the accommodating cavity, and then perform fixed limiting to complete the fixation. However, when in use, since the anvil will be tightly embedded in the accommodating cavity after being punched, it needs to be manually buckled out and fixed in groups, which wastes time and reduces manual work efficiency. In order to solve the problem that the anvil will be tightly embedded in the accommodating cavity after being punched and the problem of wasting time to fix the anvil in groups, we propose a positioning device for stamping processing of medical devices. Summary of the invention

[0005] The object of the present invention is to provide a positioning device for stamping of medical instruments to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A positioning device for stamping processing of medical instruments, comprising an installation box, a rotating mechanism is fixedly installed at the bottom end of the installation box, a rotating circular plate is also rotatably connected inside the installation box, the rotating mechanism drives the rotating circular plate to rotate, and a limiting mechanism capable of limiting the position of an anvil seat is fixedly installed at the upper end of the rotating circular plate; A punching machine capable of punching the anvil seat inside the limiting mechanism is also fixedly installed inside the installation box, a punching module is fixedly installed at the output end of the punching machine, and a feeding mechanism capable of feeding materials into the limiting mechanism is also fixedly installed inside the installation box.

[0007] As a further feature of the present invention, the loading mechanism includes a movable plate, which is slidably mounted on the bottom end of the installation box, and two groups of tension springs are fixedly connected between the movable plate and the inner wall of the installation box; a plurality of material storage tubes are also fixedly connected to the upper end of the movable plate; a first elastic telescopic rod with a reset function is fixedly connected to the inner wall of the material storage tube; an abutment block is fixedly mounted on the output end of the first elastic telescopic rod; a rubber pad is fixedly mounted on the outer wall of the abutment block; and the end of the abutment block away from the first elastic telescopic rod is rotatably connected to a first abutment wheel.

[0008] As a further feature of the present invention, a connecting arm is fixedly connected to the upper end of the abutment block, a second abutment wheel is rotatably connected to the outer wall of the connecting arm, a limit cover with a reset function is rotatably installed on the upper end of the storage tube, a second abutment bar is fixedly connected to the inner wall of the installation box, a group of outer walls of the second abutment wheel abut against the second abutment bar, a first abutment bar is also fixedly connected to the inner wall of the installation box, a discharge port is provided inside the first abutment bar, and the outer wall of the first abutment bar abuts against all the limit covers.

[0009] As a further feature of the present invention, the rotating mechanism includes a fixed column, which is fixedly installed on the bottom end of the inner wall of the installation box, and the upper end of the fixed column is rotatably connected to the rotating circular plate. A driving motor is fixedly installed inside the installation box, and the output end of the driving motor is fixedly connected to a first gear. The outer wall of the fixed column is rotatably connected to a second gear, and the second gear and the first gear are meshed with each other. The outer wall of the fixed column is also rotatably connected to a matching tube, and the bottom of the matching tube is fixedly connected to the second gear. The outer wall of the fixed column is rotatably connected to a movable circular plate, and the bottom of the movable circular plate is rotatably connected to the matching tube, and the upper end of the movable circular plate is fixedly connected to the rotating circular plate.

[0010] As a further feature of the present invention, a card interface is provided on the outer wall of the movable circular plate, a pulling arm is fixedly connected to the outer wall of the matching tube, a pulling spring is also fixedly connected between the pulling arm and the movable circular plate, the outer wall of the movable circular plate is also rotatably connected to a fixed circular plate, and the fixed circular plate is fixedly connected to the inner wall of the installation box, and a plurality of card blocks with a reset function are slidably connected to the bottom of the fixed circular plate, and one group of the card blocks is carded in the inner wall of the card interface.

[0011] As a further feature of the present invention, the limiting mechanism includes a plurality of limiting tubes, and the plurality of limiting tubes are fixedly mounted on the upper end of the rotating circular plate, two sets of disengagement openings are provided on the outer walls of the limiting tubes, a second elastic telescopic rod is fixedly connected to the inner walls of the limiting tubes, an abutment plate is rotatably connected to the output end of the second elastic telescopic rod, a rubber pad is also fixedly mounted on the outer wall of the abutment plate, and a limiting strip with a reset function is fixedly connected to the inside of the limiting tubes.

[0012] As a further feature of the present invention, the upper end of the limit clamping strip is fixedly connected to a connecting rod, and the upper end of the connecting rod is rotatably connected to a third abutment wheel. An abutment ring is provided directly above the rotating circular plate, and the bottom of the abutment ring is fixedly connected to the inner wall of the installation box. The outer wall of each group of the third abutment wheels abuts against the upper end of the abutment ring, and the outer wall of the abutment ring is provided with a matching slope, and one group of the third abutment wheel outer walls abuts against the matching slope.

[0013] As a further feature of the present invention, a fixing ring is fixedly mounted on the upper end of the rotating circular plate, a plurality of openings are formed on the outer wall of the fixing ring, and each group of openings is matched with a corresponding limiting tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, the nail seat is pushed into the interior of the limiting tube by the first elastic telescopic rod, and the shapes of the interior of the limiting tube and the interior of the storage tube can fit well with the outer wall of the nail seat. The nail seat in the inner wall of the limiting tube is limited by the limiting clip, so that the nail seat is fixed more firmly, achieving the effect of precise positioning.

[0015] 2. When the present invention is used, multiple groups of material storage tubes are provided to store multiple groups of nail anvils. The nail anvils are pushed into the interior of the limiting tubes by the first elastic telescopic rod. No manual installation is required. When in use, the present invention is suitable for small processing plants or laboratories, has a small size, and is easy to operate.

[0016] 3. When the present invention is used, when the punching opening of the anvil seat inside the limiting tube is completed, the anvil seat will be embedded in the inner wall of the limiting tube after the punching is completed, causing damage to the anvil seat when the staff is disassembling it. When the third abutment wheel inside the limiting tube abuts with the matching slope, the third abutment wheel pulls the connecting rod to move upward, and the connecting rod drives the limiting card strip to retract upward, and the second elastic telescopic rod pushes the anvil seat inside the limiting tube to the inside of the collection box, completing the unloading and collection of the anvil seat, and can also perform rapid material collection without manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a front view of a positioning device for stamping medical instruments.

[0018] Figure 2 The present invention is a schematic diagram of the internal structure of a mounting box in a positioning device for stamping processing of medical instruments.

[0019] Figure 3 The present invention is a structural schematic diagram of a feeding mechanism in a positioning device for stamping processing of medical instruments.

[0020] Figure 4 The present invention is a schematic diagram of the internal structure of a material storage tube in a positioning device for stamping processing of medical instruments.

[0021] Figure 5 The present invention is a schematic diagram of the structure of a rotating mechanism in a positioning device for stamping processing of medical instruments.

[0022] Figure 6 The present invention is a schematic diagram of the position structure of a driving motor in a positioning device for stamping processing of medical instruments.

[0023] Figure 7 The present invention is a schematic diagram of the internal structure of a material storage tube in a positioning device for stamping processing of medical instruments.

[0024] Figure 8 The present invention is a schematic diagram of the position structure of the third abutment wheel in a positioning device for stamping processing of medical instruments.

[0025] Fig. 9 The present invention is a schematic diagram of the position structure of a matching slope in a positioning device for stamping processing of medical instruments.

[0026] In the figure: 1. installation box; 2. matching pipe; 3. cabinet door; 4. fixing ring; 5. tension spring; 6. punching machine; 7. punching module; 8. display screen; 9. collection box; 10. rotating circular plate; 11. sliding rod; 12. moving plate; 13. discharge port; 14. first abutment wheel; 15. first abutment strip; 16. material storage tube; 17. second abutment bar; 18. second abutment wheel; 19. connecting arm; 20. first elastic telescopic rod; 21. limit cover; 22. driving motor; 23. first gear; 24. pulling spring; 25. pulling arm; 26. fixed circular plate; 27. movable circular plate; 28. clamping block; 29. ​​second gear; 30. clamping interface; 31. The third abutment wheel; 32. The abutment ring; 33. The connecting rod; 34. The abutment plate; 35. The second elastic telescopic rod; 36. The limiting tube; 37. The return spring; 38. The limiting clamping strip; 39. The matching slope; 40. The disengagement port; 41. The connecting column; 101. The feeding mechanism; 201. The rotating mechanism; 301. The limiting mechanism. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1 , 2 In an embodiment of the present invention, a positioning device for stamping processing of medical instruments includes an installation box 1, the outer wall of the installation box 1 is rotatably connected to a cabinet door 3 through a rotating shaft, and the outer walls of the installation box 1 and the cabinet door 3 are both installed with glass covers, and the staff can observe the situation inside the installation box 1 through the glass cover. A rotating mechanism 201 is fixedly installed at the bottom end of the installation box 1, and a rotating circular plate 10 is also rotatably connected to the inner wall of the installation box 1. The rotating mechanism 201 drives the rotating circular plate 10 to rotate, and a limit stop that can limit the position of the anvil is fixedly installed on the upper end of the rotating circular plate 10. Mechanism 301, a punching machine 6 for punching the anvil seat inside the limiting mechanism 301 is fixedly installed inside the installation box 1, a punching module 7 is fixedly installed at the output end of the punching machine 6, the punching module 7 is located above the rotating circular plate 10, and a feeding mechanism 101 for feeding materials into the limiting mechanism 301 is also fixedly installed inside the installation box 1, a display screen 8 for displaying data is also fixedly installed inside the installation box 1, and a collecting box 9 is also fixedly installed inside the installation box 1, and the collecting box 9 can collect the anvil seat inside the limiting mechanism 301.

[0029] Example 2: Please refer to Figure 3 , 4As shown, the feeding mechanism 101 includes a moving plate 12, which is slidably mounted on the bottom end of the installation box 1. Specifically, two groups of sliding rods 11 are fixedly connected to the bottom end of the installation box 1, and the two groups of sliding rods 11 are symmetrically distributed at the bottom end of the installation box 1. The moving plate 12 is slidably mounted on the outer surfaces of the two groups of sliding rods 11. Lubricating oil is applied to the outer walls of the sliding rods 11. When the moving plate 12 slides on the outer walls of the sliding rods 11, the sliding rods 11 will guide the moving plate 12, thereby improving the stability of the moving plate 12 when moving, and the lubricating oil can reduce the friction between the moving plate 12 and the sliding rods 11, thereby extending the service life of the moving plate 12 and the sliding rods 11. Two groups of tension springs 5 ​​are fixedly connected between the moving plate 12 and the inner wall of the installation box 1. The two groups of tension springs 5 ​​are symmetrically distributed, and a plurality of material storage tubes 16 are fixedly connected to the upper end of the movable plate 12, and the plurality of material storage tubes 16 are distributed in an array at the upper end of the movable plate 12. The cross section of the material storage tube 16 is semicircular, which can better fit with the anvil seat. The inner wall of the material storage tube 16 is fixedly connected to a first elastic telescopic rod 20 with a reset function (it is worth noting that the first elastic telescopic rod 20 in the figure is in a squeezed state), and an abutment block is fixedly installed at the output end of the first elastic telescopic rod 20, and the abutment block is also semicircular, and a rubber pad is fixedly installed on the outer wall of the abutment block, which can well reduce the abutment force with the anvil seat and reduce the squeezing force on the anvil seat, and the end of the abutment block away from the first elastic telescopic rod 20 is rotatably connected to the first abutment wheel 14; A connecting arm 19 is fixedly connected to the upper end of the abutment block, and the connecting arm 19 is "L"-shaped. The outer wall of the connecting arm 19 is rotatably connected to the second abutment wheel 18 through a rotating shaft. A limit cover 21 with a reset function is rotatably installed on the upper end of the storage tube 16, and a reset torsion spring is installed between the limit cover 21 and the storage tube 16. The limit cover 21 can prevent the abutment seat inside the storage tube 16 from jumping out and limit the abutment seat inside the storage tube 16. A second abutment bar 17 is fixedly connected to the inner wall of the installation box 1, and the second abutment bar 17 and all the limit covers 21 are parallel to the same horizontal plane, and the outer wall of one group of second abutment wheels 18 abuts against the second abutment bar 17. The inner wall of the installation box 1 is also fixedly connected to the first abutment bar 15, and a discharge port 13 is opened inside the first abutment bar 15. The outer wall of the first abutment bar 15 abuts against all the limit covers 21, and the discharge port 13 is connected to a corresponding group of storage tubes 16.

[0030] See also Figure 5 , 6As shown, the rotating mechanism 201 includes a fixed column, which is fixedly installed at the bottom end of the inner wall of the installation box 1, and the upper end of the fixed column is rotatably connected to the rotating circular plate 10 through a rotating shaft. A driving motor 22 is fixedly installed inside the installation box 1, and the output end of the driving motor 22 is fixedly connected to a first gear 23. The outer wall of the fixed column is rotatably connected to a second gear 29, and the second gear 29 is meshed with the first gear 23. The outer wall of the fixed column is also rotatably connected to a matching tube 2, and the bottom of the matching tube 2 is fixedly connected to the second gear 29. The outer wall of the fixed column is rotatably connected to a moving circular plate 27, and the bottom of the moving circular plate 27 is rotatably connected to the matching tube 2. The upper end of the moving circular plate 27 is fixedly connected to the rotating circular plate 10, and a card interface 30 is provided on the outer wall of the moving circular plate 27. A pulling arm 25 is fixedly connected to the outer wall of the matching tube 2, and a curved surface is provided at one end of the pulling arm 25 away from the matching tube 2, and a pulling spring 2 is also fixedly connected between the pulling arm 25 and the moving circular plate 27. 4. The outer wall of the movable circular plate 27 is also rotatably connected to a fixed circular plate 26, which is located between the movable circular plate 27 and the rotating circular plate 10, and a connecting column 41 is fixedly connected to the bottom of the fixed circular plate 26, and the connecting column 41 is fixedly connected to the inner wall of the installation box 1. A plurality of clamping blocks 28 with a reset function are slidably connected to the bottom of the fixed circular plate 26. The clamping blocks 28 are triangular in shape, and each group of clamping blocks 28 is adapted to the clamping interface 30, wherein one group of clamping blocks 28 is clamped in the inner wall of the clamping interface 30. Specifically, a plurality of sliding frames are fixedly connected to the bottom of the fixed circular plate 26, and each group of clamping blocks 28 is slidably connected to the inner wall of the corresponding sliding frame. An elastic spring is fixedly connected between the clamping blocks 28 and the inner wall of the sliding frame. Since the outer wall of the pulling arm 25 is provided with a curved surface, when the curved surface on the outer wall of the pulling arm 25 abuts against the clamping block 28, the curved surface can greatly reduce the friction between the pulling arm 25 and each group of clamping blocks 28.

[0031] See also Figure 7 , 8As shown in Figure 9, the limiting mechanism 301 includes a plurality of limiting tubes 36, and the plurality of limiting tubes 36 are fixedly mounted on the upper end of the rotating circular plate 10, and the plurality of limiting tubes 36 are distributed in a circle on the upper end of the rotating circular plate 10, and the outer wall of the limiting tube 36 is provided with two groups of disengagement openings 40, the inner wall of the limiting tube 36 is fixedly connected with the second elastic telescopic rod 35, the output end of the second elastic telescopic rod 35 is rotatably connected with the abutment plate 34, and the outer wall of the abutment plate 34 is also fixedly mounted with a rubber pad, and the specific function is the same as the rubber pad on the outer wall of the abutment block, which will not be described in detail here, one group of the limiting tubes 36 is communicated with the corresponding material storage tube 16, and the limiting tube 36 is fixedly connected with a limiting card strip 38 with a reset function inside, The limiting tube 36 is provided with an installation cavity, and a plurality of return springs 37 are installed in the installation cavity. The limit clamping strip 38 is slidably installed on the inner wall of the installation cavity. The end of the return spring 37 away from the installation cavity is fixedly connected to the limit clamping strip 38. When the anvil seat enters the limiting tube 36, it will first abut against the limit clamping strip 38. Since the cross section of the limit clamping strip 38 is a triangle, when the anvil seat and the limit clamping strip 38 abut against each other, the inclined surface of the limit clamping strip 38 can greatly reduce the friction between the limit clamping strip 38 and the anvil seat. When the anvil seat is separated from the abutment with the limit clamping strip 38, the second elastic telescopic rod 35 will push the anvil seat to abut against the limit clamping strip 38 again, thereby completing the limitation of the anvil seat. The upper end of the limit clamping strip 38 is fixedly connected to a connecting rod 33, and the upper end of the connecting rod 33 is rotatably connected to a third abutting wheel 31. An abutting ring 32 is arranged just above the rotating circular plate 10, and the bottom of the abutting ring 32 is fixedly connected to the inner wall of the installation box 1 (please refer to Figure 2 ), the outer wall of each group of third abutment wheels 31 abuts against the upper end of the abutment ring 32, the outer wall of the abutment ring 32 is provided with a matching slope 39, all the third abutment wheels 31 are adapted to the matching slope 39, and the outer wall of one group of third abutment wheels 31 abuts against the matching slope 39.

[0032] See also Figure 7 As shown, a fixing ring 4 is fixedly mounted on the upper end of the rotating circular plate 10 , and a plurality of openings are formed on the outer wall of the fixing ring 4 , and each group of openings is matched with a corresponding limiting tube 36 .

[0033] The working principle of the present invention is as follows: when in use, it is only necessary to arrange the anvil seats inside each group of material storage tubes 16, and use the first elastic telescopic rod 20 to abut the anvil seats. At this time, all the anvil seats will be subjected to the squeezing force from the first elastic telescopic rod 20, and the anvil seats will abut against the first abutment strip 15. The anvil seats inside the material storage tube 16 connected to the discharge port 13 will be pushed into the corresponding limiting tube 36 by the first elastic telescopic rod 20. Since the limiting tube 36 and the inner wall of the material storage tube 16 can be well fitted with the outer wall of the anvil seats, when the first abutment wheel 14 on the first elastic telescopic rod 20 pushes the anvil seats into the inner wall of the limiting tube 36, (based on the above) the anvil seats in the inner wall of the limiting tube 36 will be limited by the limiting clamping strip 38; At this time, the drive motor 22 is started, and the drive motor 22 drives the second gear 29 to rotate through the first gear 23, and the second gear 29 drives the matching tube 2 and the pulling arm 25 to rotate together. Since the card interface 30 inside the movable circular plate 27 is engaged with one group of the card blocks 28, the pulling spring 24 will be stretched at this time and the movable circular plate 27 is in a stationary state. When the pulling arm 25 abuts against the card block 28 inside the card interface 30, the card block 28 contracts, and the corresponding card block 28 will be disengaged from the card interface 30. At this time, the pulling spring 24 recovers its deformation and pulls the movable circular plate 27 to rotate in the process. The card interface 30 inside the movable circular plate 27 will be engaged with the inside of the next group of card blocks 28. When the movable circular plate 27 rotates, it will also drive the rotating circular plate 10 to complete a rotation. The rotating circular plate 10 will drive the next group of limiting tubes 36 to be connected to the discharge port 13. It is worth noting that when the limiting tube 36 moves, the next group of abutting A part of the nail seat will be located inside the corresponding limiting tube 36. At this time, the limiting tube 36 rotates, and the next set of nail seats will pass through the escape port 40. At this time, the fixing ring 4 will abut against the nail seat, and the nail seat will enter the next set of limiting tube 36 from the opening of the fixing ring 4. When a set of nail seats is not lost inside the storage tube 16, the first elastic telescopic rod 20 will drive the second abutment wheel 18 to abut against the outer wall of the second abutment strip 17 through the abutment block. When the nail seats inside the storage tube 16 are used up, the first elastic telescopic rod 20 will drive the second abutment wheel 18 to abut against the outer wall of the second abutment strip 17. A part of an abutting wheel 14 will be located inside the corresponding limiting tube 36. At this time, since the second abutting wheel 18 is separated from the abutment with the second abutting strip 17, the tension spring 5 will drive the first abutting wheel 14 to move through the moving plate 12, and the first abutting wheel 14 will slide with the edge of the limiting tube 36 to reduce friction, and the next group of second abutting wheels 18 will continue to abut with the second abutting strip 17, and the punching machine 6 will be started to drive the punching module 7 to punch the nail seat inside the limiting tube 36; When the third abutment wheel 31 inside the limiting tube 36 abuts against the matching slope 39, the third abutment wheel 31 pulls the connecting rod 33 to move upward, and the connecting rod 33 drives the limiting clamping strip 38 to retract upward, and the second elastic telescopic rod 35 pushes the nail seat inside the limiting tube 36 into the collection box 9, completing the unloading and collection of the nail seat.

[0034] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning device for medical device stamping processing, comprising a mounting box (1), characterized in that: A rotating mechanism (201) is fixedly installed at the bottom end of the installation box (1), and a rotating circular plate (10) is also rotatably connected to the installation box (1). The rotating mechanism (201) drives the rotating circular plate (10) to rotate, and a limiting mechanism (301) capable of limiting the position of the nail support is fixedly installed at the upper end of the rotating circular plate (10); A punching machine (6) capable of punching a pin holder inside the limiting mechanism (301) is also fixedly installed inside the installation box (1), a punching module (7) is fixedly installed at the output end of the punching machine (6), and a feeding mechanism (101) capable of feeding materials into the limiting mechanism (301) is also fixedly installed inside the installation box (1).

2. A positioning device for medical device stamping according to claim 1, characterized in that: The feeding mechanism (101) comprises a movable plate (12), the movable plate (12) being slidably mounted on the bottom end of the installation box (1), two groups of tension springs (5) being fixedly connected between the movable plate (12) and the inner wall of the installation box (1), a plurality of material storage tubes (16) being fixedly connected to the upper end of the movable plate (12), the inner wall of the material storage tube (16) being fixedly connected to a first elastic telescopic rod (20) having a reset function, an abutment block being fixedly mounted on the output end of the first elastic telescopic rod (20), a rubber cushion being fixedly mounted on the outer wall of the abutment block, and a first abutment wheel (14) being rotatably connected to one end of the abutment block away from the first elastic telescopic rod (20).

3. A positioning device for medical device stamping according to claim 2, characterized in that: The upper end of the abutment block is fixedly connected to a connecting arm (19), and the outer wall of the connecting arm (19) is rotatably connected to a second abutment wheel (18). The upper end of the material storage tube (16) is rotatably mounted with a limit cover (21) having a reset function. The inner wall of the installation box (1) is fixedly connected to a second abutment bar (17), wherein a group of outer walls of the second abutment wheel (18) abut against the second abutment bar (17). The inner wall of the installation box (1) is also fixedly connected to a first abutment bar (15), wherein a material discharge port (13) is provided inside the first abutment bar (15), and the outer wall of the first abutment bar (15) abuts against all the limit covers (21).

4. A positioning device for medical device stamping according to claim 1, characterized in that: The rotating mechanism (201) comprises a fixed column, the fixed column is fixedly mounted on the bottom end of the inner wall of the installation box (1), the upper end of the fixed column is rotatably connected to the rotating circular plate (10), a driving motor (22) is fixedly mounted inside the installation box (1), the output end of the driving motor (22) is fixedly connected to a first gear (23), the outer wall of the fixed column is rotatably connected to a second gear (29), the second gear (29) and the first gear (23) are meshed with each other, the outer wall of the fixed column is also rotatably connected to a matching tube (2), the bottom of the matching tube (2) is fixedly connected to the second gear (29), the outer wall of the fixed column is rotatably connected to a moving circular plate (27), the bottom of the moving circular plate (27) is rotatably connected to the matching tube (2), and the upper end of the moving circular plate (27) is fixedly connected to the rotating circular plate (10).

5. A positioning device for stamping of medical instruments according to claim 4, characterized in that: The outer wall of the movable circular plate (27) is provided with a card interface (30), the outer wall of the matching tube (2) is fixedly connected with a pulling arm (25), a pulling spring (24) is also fixedly connected between the pulling arm (25) and the movable circular plate (27), the outer wall of the movable circular plate (27) is also rotatably connected with a fixed circular plate (26), and the fixed circular plate (26) is fixedly connected to the inner wall of the installation box (1), and a plurality of card blocks (28) with a reset function are slidably connected to the bottom of the fixed circular plate (26), wherein a group of the card blocks (28) is card-engaged in the inner wall of the card interface (30).

6. A positioning device for stamping of medical instruments according to claim 1, characterized in that: The limiting mechanism (301) comprises a plurality of limiting tubes (36), and the plurality of limiting tubes (36) are fixedly mounted on the upper end of the rotating circular plate (10); the outer wall of the limiting tube (36) is provided with two sets of disengagement openings (40); the inner wall of the limiting tube (36) is fixedly connected to a second elastic telescopic rod (35); the output end of the second elastic telescopic rod (35) is rotatably connected to an abutment plate (34); a rubber cushion is also fixedly mounted on the outer wall of the abutment plate (34); and the interior of the limiting tube (36) is fixedly connected to a limiting clamping strip (38) having a reset function.

7. A positioning device for medical device stamping according to claim 6, characterized in that: The upper end of the limit clamping strip (38) is fixedly connected to a connecting rod (33), and the upper end of the connecting rod (33) is rotatably connected to a third abutting wheel (31). An abutting ring (32) is provided directly above the rotating circular plate (10), and the bottom of the abutting ring (32) is fixedly connected to the inner wall of the installation box (1). The outer wall of each group of the third abutting wheels (31) abuts against the upper end of the abutting ring (32). The outer wall of the abutting ring (32) is provided with a matching slope (39), and the outer wall of one group of the third abutting wheels (31) abuts against the matching slope (39).

8. A positioning device for medical device stamping according to claim 1, characterized in that: A fixing ring (4) is fixedly mounted on the upper end of the rotating circular plate (10), and a plurality of openings are formed on the outer wall of the fixing ring (4), and each group of openings is matched with a corresponding limiting tube (36).

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