Stamping and slitting die for scalpel head after milling

Abstract

The utility model discloses a stamping and slitting die for a milled scalpel head, and relates to the technical field of stamping and slitting devices.The stamping and slitting die for the milled scalpel head comprises a first stamping and shearing die, a limiting groove is formed in the first stamping and shearing die, and a plurality of first stamping blocks are evenly arranged in the limiting groove in the length direction in an array mode; the slitting seat is detachably connected with the first punching and shearing die, a plurality of slitting openings are evenly formed in the slitting seat, a plurality of surgical knife heads to be slit are arranged on the slitting seat, and the surgical knife heads correspond to the slitting openings one to one; and a plurality of second punching blocks are evenly arranged on one side of the second punching and shearing die, the second punching blocks can penetrate through the cutting openings, punching grooves are formed in the second punching blocks, and one ends of the first punching blocks can block the punching grooves. By the adoption of the technical scheme, slitting of the multiple scalpel heads is achieved through stamping, and then the quality of the slitting faces of the adjacent scalpel heads is improved.

Description

Technical Field

[0001] This application relates to the field of stamping and slitting device technology, and in particular to a stamping and slitting die after milling a surgical scalpel head. Background Technology

[0002] The stamping and slitting technology following milling of surgical scalpel tips is a processing technique in the medical device field, primarily used to improve the precision and quality of surgical scalpel blades to meet the needs of minimally invasive surgery. Minimally invasive surgery is popular with patients due to its small incision, less pain, and faster recovery, but it requires high precision from surgical instruments.

[0003] Furthermore, due to the small size of surgical blades, they are generally produced in batches. After milling the surgical blades, multiple blades need to be cut separately. To address this, existing technology proposes a pneumatic shearing blade and cutting device, which includes a blade holder assembly and a blade head assembly. The blade holder assembly includes a stroke adjustment unit and a blade holder base. The stroke adjustment unit includes a connecting rod that passes through the blade holder base and is detachably connected to the blade head assembly. It also includes a sleeve that fits onto the connecting rod, with the outer surface of the sleeve interlocking with the inner wall of the blade holder base. This design primarily solves the problem of friction between the connecting rod and the shearing blade wall by connecting the blade head and the blade holder base via a sleeve.

[0004] While existing cutting tools can grind and divide multiple blades, this results in burrs on the cutting surface of the surgical blade, which in turn leads to the technical problem of needing to perform secondary finishing on the cutting surface after the grinding and dividing process is completed. Utility Model Content

[0005] The purpose of this utility model is to provide a stamping and slitting mold after milling surgical scalpel heads, so as to solve the technical problem of poor slitting surface quality when slitting multiple surgical scalpel heads after milling.

[0006] This application provides a stamping and slitting die for milling surgical blade heads, comprising:

[0007] The first punching and shearing die has a limiting groove, and multiple first punching blocks are uniformly arranged in an array along the length direction inside the limiting groove.

[0008] The slitting seat is detachably connected to the first punching and shearing mold. Multiple slitting openings are evenly provided on the slitting seat. Multiple surgical blades to be slitted are arranged on the slitting seat, and the surgical blades are arranged one-to-one with the slitting openings.

[0009] The second punching and shearing die has a plurality of second punch blocks evenly arranged on one side. The second punch blocks can pass through the cutting opening. The second punch blocks are provided with punch grooves. One end of the first punch block can block the punch grooves.

[0010] Preferably, the limiting groove includes a mounting groove and a retaining groove, the retaining groove is formed at both ends of the mounting groove, the first punch is disposed in the mounting groove, the depth of the retaining groove is greater than that of the mounting groove, and the mounting groove and the retaining groove are interconnected; the cutting seat includes a support part and a cutting part, the support part is located on both sides of the cutting part, the support part can be inserted and cooperated with the retaining groove, and the cutting part is used to install the surgical blade head to be cut.

[0011] Preferably, the bottom of the cutting seat has evenly distributed threaded holes, and the surgical blade to be cut is detachably connected to the cutting seat by bolts.

[0012] Preferably, it further includes a linear drive component, which is disposed on the second punching and shearing die for driving the second punching and shearing die to move closer to or away from the first punching and shearing die.

[0013] Preferably, there are clearance grooves on both sides of the upper part of the first punch block.

[0014] Preferably, the first punching and shearing die includes:

[0015] The base has a fixing groove;

[0016] The punching and shearing body is detachably installed in the fixed groove.

[0017] Preferably, the punching and shearing body is provided with spherical protrusions, and the second punching and shearing die is provided with spherical grooves.

[0018] Preferably, the base is provided with limiting blocks, which are located on both sides of the punching and shearing body, and the two limiting blocks form a clamping space, which is used to limit and clamp the slitting seat.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. By using the first and second punch-scissor dies, precise positioning and cutting of multiple surgical blades are achieved; the detachable connection between the cutting seat and the first punch-scissor die, as well as the one-to-one correspondence between the cutting opening and the surgical blade, ensures the accuracy and consistency during the cutting process, thereby reducing the possibility of burrs appearing on the cutting surfaces of adjacent surgical blades and improving the cutting quality.

[0021] 2. The structure of the mounting groove and the retaining groove in the limiting groove allows the first punch block to be securely installed in the mounting groove, while the support part of the cutting seat can be inserted and matched with the retaining groove, providing good structural stability. At the same time, the scalpel head is detachably connected to the cutting seat by bolts, which is convenient for replacement and adjustment and improves the flexibility of operation. The design of the avoidance grooves on both sides of the upper part of the first punch block helps to reduce friction and stress concentration during the cutting process, further protecting the scalpel head from damage and maintaining the precision and integrity of the scalpel head. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the first punching and shearing die in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the second punching and shearing die and the slitting seat of this application;

[0025] Figure 4 This is a schematic diagram showing the state of the slitting seat installed in the first punching and shearing die.

[0026] In the figure: 1. First punching and shearing die; 11. First punch block; 111. Alternating groove; 12. Base; 121. Limiting block; 13. Punching and shearing body; 14. Slot; 131. Spherical protrusion; 2. Cutting seat; 21. Cutting opening; 22. Support part; 23. Cutting part; 24. Threaded hole; 3. Second punching and shearing die; 31. Second punch block; 311. Punching groove; 4. Surgical blade head to be cut; 5. Linear drive component. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0028] Example:

[0029] Reference Figures 1-4 A stamping and slitting die for milling surgical blades includes a first punching and shearing die 1, a slitting seat 2, a second punching and shearing die 3, and a linear drive component 5.

[0030] The first punching and shearing mold 1 includes a base 12 and a punching and shearing body 13. A fixing groove is formed in the middle of the base 12, and the punching and shearing body 13 is detachably mounted within the fixing groove. The fixing groove provides a stable foundation, facilitating the replacement and maintenance of the punching and shearing body 13. Furthermore, since the volume of surgical blades may vary, the first punching and shearing mold 1 is configured as two parts: the base 12 and the punching and shearing body 13, making it easy to replace punching and shearing bodies 13 of different sizes. In this embodiment, the punching and shearing body 13 is threadedly connected to the base 12 via bolts on its upper and lower sides.

[0031] In addition, the first punching and shearing die 1 has punching grooves at its four corners, and the second punching and shearing die 3 has cylindrical punching blocks at its bottom four corners. The first punching and shearing die 1 also has a limiting groove, in which multiple first punch blocks 11 are evenly arranged along the length direction, and each first punch block 11 can be slidably installed in the limiting groove. The limiting groove is composed of an installation groove and retaining grooves 14 located at both ends thereto. The depth of the retaining grooves 14 is greater than that of the installation groove, and the installation groove and retaining grooves 14 are interconnected. The first punch blocks 11 are securely installed through the retaining grooves 14, providing positioning and stability during the cutting process. The upper two sides of the first punch blocks 11 are provided with relief grooves 111. The design of the relief grooves 111 helps to reduce friction and stress concentration during the cutting process, thereby further protecting the surgical blade from damage.

[0032] To further improve the connection stability between the slitting seat 2 and the first punching and shearing die 1, spherical protrusions 131 are provided on the punching and shearing body 13. There are two spherical protrusions 131, which are provided on the left and right sides of the punching and shearing body 13. Spherical grooves are also provided on the second punching and shearing die 3, and the spherical grooves can be inserted and matched with the spherical protrusions 131.

[0033] In other embodiments, the base 12 is provided with two limiting blocks 121, which are rectangular blocks located on both sides of the punching and shearing body 13. One side of each limiting block 121 is parallel to the slitting seat 2 and just able to abut against the side of the slitting seat 2. The two limiting blocks form a clamping space for clamping and limiting the slitting seat 2.

[0034] The slitting seat 2 is detachably connected to the first punching and shearing die 1 via a spherical protrusion 131. Multiple slitting openings 21 are evenly distributed along the length of the slitting seat 2, and multiple surgical blades 4 to be slitted are disposed on the slitting seat 2, corresponding one-to-one with the slitting openings 21. Threaded holes 24 are evenly distributed at the bottom of the slitting seat 2, and the surgical blades 4 to be slitted are threadedly connected to the slitting seat 2 via bolts. More preferably, to prevent damage to the blades from the bolts during the punching process, a buffer pad is provided between the bolts and the blades.

[0035] The cutting base 2 includes a support portion 22 and a cutting portion 23. The support portion 22 is located on both sides of the cutting portion 23 and can be inserted into the slot 14. The cutting portion 23 is used to fix the surgical blade head 4 to be cut. The bottom of the cutting base 2 has a threaded hole 24. The surgical blade head is detachably connected to the cutting base 2 by bolts, which ensures that the blade head is firmly fixed during cutting and avoids displacement of the blade head.

[0036] The second punching and shearing die 3 has multiple second punch blocks 31 evenly arranged on one side. The second punch blocks 31 can pass through the cutting opening 21 and have punch grooves 311 on them. During the cutting process, the second punch blocks 31 pass through the cutting opening 21 under the drive of the linear drive 5 to punch and cut the surgical blade head. One end of the first punch block 11 can block the punch grooves 311 on the second punch block 31. The design of the punch grooves 311 further stabilizes the position of the blade head and prevents the blade head from shifting or shaking during the cutting process.

[0037] A linear drive component 5 is mounted on the second punching and shearing die 3 to drive the second punching and shearing die 3 closer to or further away from the first punching and shearing die 1. By controlling the linear drive component 5, the position of the second punching and shearing die 3 can be precisely adjusted, thereby ensuring the accuracy and consistency of each punching and cutting operation. In this embodiment, the second drive component is driven by a hydraulic cylinder. Using a hydraulic cylinder to drive the movement of the second punching and shearing die 3, thereby driving the second punch block 31 to punch and cut, provides a stable and precise power source.

[0038] The insertion fit between the support part 22 of the slitting seat 2 and the slot 14 is tighter to ensure the stability of the slitting seat 2 during the slitting process. The linear drive 5 can be adjusted by a precision control device, so that the second punching and shearing die 3 can accurately control the depth and position of each punching and slitting, thereby ensuring slitting accuracy and consistency.

[0039] The implementation principle of the embodiments in this application is as follows:

[0040] First, the surgical blade 4 to be cut is fixed to the cutting base 2 with bolts. The support part 22 of the cutting base 2 is inserted into the slot 14 of the first punching and shearing die 1, ensuring the stable positioning of the blade. Furthermore, the fit between the spherical protrusion 131 and the spherical groove between the cutting base 2 and the first punching and shearing die 1 further improves the stability of the connection. During the cutting process, multiple second punch blocks 31 on the second punching and shearing die 3 pass through the cutting opening 21 under the drive of the linear drive 5, punching and cutting the blade. The precise fit between the punch blocks and the punch groove 311 ensures the stability of the blade during the cutting process, preventing displacement. The design of the stamping groove and limiting groove structure on the first punching and shearing die 1 ensures the accuracy of the stamping process, reduces burrs and stress concentration that may occur during the cutting process, thereby avoiding damage to the blade and the need for secondary processing. This design significantly improves production efficiency and blade quality.

[0041] It should be noted that the hydraulic cylinder in this embodiment is a commercially available device. The model can be selected or customized according to actual needs. In this application, we only use it and have not improved its structure and function. Its setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art in accordance with the requirements of its instruction manual, and will not be described in detail here.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamping and slitting die for milling a surgical scalpel head, characterized in that, include: The first punching and shearing die (1) has a limiting groove, and a plurality of first punch blocks (11) are uniformly arranged in the limiting groove along the length direction. The slitting seat (2) is detachably connected to the first punching and shearing mold (1). Multiple slitting openings (21) are evenly provided on the slitting seat (2). Multiple surgical blades to be slitrated are arranged on the slitting seat (2), and the surgical blades are arranged one-to-one with the slitting openings (21). The second punching and shearing die (3) has a plurality of second punch blocks (31) evenly arranged on one side. The second punch blocks (31) can pass through the cutting opening (21). The second punch blocks (31) are provided with punch grooves (311). One end of the first punch block (11) can block the punch grooves (311).

2. The stamping and slitting die for milling a surgical scalpel head according to claim 1, characterized in that, The limiting groove includes an installation groove and a slot (14). The slot (14) is opened at both ends of the installation groove. The first punch (11) is disposed in the installation groove. The depth of the slot (14) is greater than that of the installation groove. The installation groove and the slot (14) are interconnected. The cutting seat (2) includes a support part (22) and a cutting part (23). The support part (22) is located on both sides of the cutting part (23). The support part (22) can be inserted and cooperated with the slot (14). The cutting part (23) is used to install the surgical blade head (4) to be cut.

3. The stamping and slitting die for milling a surgical scalpel head according to claim 2, characterized in that, The bottom of the cutting seat (2) is evenly provided with threaded holes (24), and the surgical blade (4) to be cut is detachably connected to the cutting seat (2) by bolts.

4. The stamping and slitting die for milling a surgical scalpel head according to claim 1, characterized in that, It also includes a linear drive (5), which is disposed on the second punching and shearing die (3) for driving the second punching and shearing die (3) to move closer to or away from the first punching and shearing die (1).

5. The stamping and slitting die for milling a surgical scalpel head according to claim 1, characterized in that, The first punch (11) has clearance grooves (111) on both sides of its upper part.

6. The stamping and slitting die for milling a surgical scalpel head according to claim 2, characterized in that, The first punching and shearing die (1) includes: The base (12) has a fixing groove; The punching and shearing body (13) is detachably installed in the fixed groove.

7. The stamping and slitting die for milling a surgical scalpel head according to claim 6, characterized in that, The punching and shearing body (13) is provided with a spherical protrusion (131), and the second punching and shearing die (3) is provided with a spherical groove.

8. A stamping and slitting die for milling a surgical scalpel head according to claim 6, characterized in that, The base (12) is provided with a limiting block (121), which is located on both sides of the punching and shearing body (13). The two limiting blocks form a clamping space, which is used to limit and clamp the slitting seat (2).

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