CN210614812U - Punch for processing medical instrument - Google Patents
Punch for processing medical instrument Download PDFInfo
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- CN210614812U CN210614812U CN201921217547.1U CN201921217547U CN210614812U CN 210614812 U CN210614812 U CN 210614812U CN 201921217547 U CN201921217547 U CN 201921217547U CN 210614812 U CN210614812 U CN 210614812U
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- punch
- machining
- cutter
- recess
- medical instrument
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Abstract
The utility model discloses a drift for processing medical instrument, including cutter arbor, connection the convergent awl of cutter arbor one end, connection the convergent awl is kept away from the die-cut portion of cutter arbor one end, die-cut portion is including connecting the sword core of convergent awl tip, set up in the shaping sword of the radial surface of sword core, the shaping sword is kept away from one side of convergent awl is provided with the tip, the tip radially is provided with 3 ~ 6 anterior angles along the cutter, the tip is provided with 1.5 the relief angle along the cutter axial. The utility model discloses a drift for processing medical instrument improves the machining precision, and reduce cost simultaneously has higher life-span.
Description
Technical Field
The utility model relates to an equipment structure for processing medical instrument, in particular to a punch for processing medical instrument.
Background
In the prior art, medical instruments are mostly made of titanium alloy, so that the strength and the corrosion resistance of the medical instruments are improved.
However, the difficulty of processing titanium alloy is great, the conventional cutter is difficult to meet the precision requirement and the cost requirement, and the conventional cutter is easy to damage and has short service life.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem, provide a drift for processing medical instrument, improve the machining precision, reduce cost simultaneously, has higher life-span.
The utility model discloses a realize through following technical scheme:
the utility model discloses a first aspect provides a drift for processing medical instrument, including cutter arbor, connection the convergent awl of cutter arbor one end, connection the convergent awl is kept away from the die-cut portion of cutter arbor one end, die-cut portion is including connecting the sword core of convergent awl tip, set up in the shaping sword of the radial surface of sword core, the shaping sword is kept away from one side of convergent awl is provided with the tip, the tip is provided with 3 ~ 6 anterior angles along the cutter is radial, the tip is provided with 1.5's relief angle along the cutter axial.
The beneficial effects are that: compared with the prior art, the punch for processing the medical instrument has the advantages that the forming blade is arranged on one side of the forming blade far away from the tapered cone, so that the blade tip can be contacted with a material to be processed in advance when punching processing is carried out, the material to be processed is subjected to pre-punching, the actual thickness of the material to be punched is reduced, and the punching strength is reduced; simultaneously, on the one hand, through making the blade point have 3 ~ 6 anterior angles, ensure that the blade point is enough sharp, do benefit to die-cut processing, on the other hand, still through making the blade point have 1.5 back angles, improve the volume of blade point, increase the intensity of shaping sword, prevent the collapse of shaping sword, the life-span of extension drift.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is preferred, the shaping sword is provided with four, four the shaping sword sets up along the axial extension of cutter.
Beneficially, reasonable setting up the quantity of shaping sword for shaping sword atress is balanced, avoids the drift to buckle.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is further, the tip of refill forms the concave position that curvature radius is 25 millimeters, four are connected to the edge of concave position the preceding of shaping sword.
The concave position is used for storing the excess material, so that the compression of the raw material on the blade tip is reduced, and the abrasion on the blade tip is reduced.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is further, adjacent form the recess between the shaping sword, the tank bottom of recess with shaping sword parallel arrangement.
The forming cutter has the advantages that the grooves are formed between the adjacent forming blades, so that scraps generated by punching can be conveniently discharged, the friction of the scraps on the blade tip is reduced, the abrasion is reduced, and the strength and the service life of the forming blades are ensured.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is further, the degree of depth of recess is 0.17 millimeter, the width of recess is 0.7 millimeter.
The punching die has the advantages that the depth of the groove is small, the size difference deviation of the punched end face is small, the influence on the machining precision is small, and the punching quality can be powerfully guaranteed.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is further, the recess is along the axial extension of cutter, the recess extends to on the conical surface of convergent awl.
Beneficially, the piece can move along the recess, avoids the piece to take place the extrusion with the surface of convergent awl, avoids piece and product surface impression, avoids influencing die-cut appearance quality.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is further, the recess extends to the radial surface of cutter arbor.
The scrap can be conveniently moved to the cutter bar from the groove, the scrap is smoothly discharged, and the scrap is prevented from being accumulated.
According to the first aspect of the present invention, preferably, the punching portion is plated with a silicon-based film layer.
The silicon film layer is arranged, so that the smoothness of the cutting part is improved, the strength is improved, the wear resistance is improved, and the service life of the punch is prolonged.
According to the first aspect of the present invention, preferably, the punching portion is plated with a silicon-based film layer. The total length of drift is 35 millimeters, the length of die-cut portion is 3.5 millimeters, the external diameter of die-cut portion is 2.35 millimeters.
Beneficially, for satisfying the actual processing needs, set up a comparatively tiny drift of a section, be applicable to the die-cut processing of aperture.
According to the utility model discloses a drift for processing medical instrument of first aspect, it is preferred, the radial surface of cutter arbor is provided with the step, the step set up in the cutter arbor is kept away from the one end of convergent awl.
The punching device has the advantages that before improvement, punching acting force is transmitted by means of friction force between the outer surface of the cutter bar and equipment, after improvement, force transmission can be performed by means of steps, the punching device is more reliable, a punch is accurately positioned, and the problem of inaccurate punching depth is solved.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic structural view of a punch for processing a medical instrument according to the present invention;
FIG. 2 is a cross-sectional schematic view of the punch of FIG. 1;
fig. 3 is a partially enlarged schematic view of fig. 2.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
As shown in fig. 1, the present embodiment provides a punch for processing a medical instrument.
Structurally, the drift includes cutter arbor 10, connects the convergent cone 20, the connection of cutter arbor 10 one end the convergent cone 20 is kept away from the die-cut portion 30 of cutter arbor 10 one end, and wherein, the overall length of drift is 35 millimeters, and the length of die-cut portion 30 is 3.5 millimeters, and the tapering of convergent cone 20 is 30, and the length of cutter arbor 10 can be obtained through calculation, and it can to satisfy the installation needs.
Due to the size specification pin of the medical appliance part, the embodiment provides a thinner punch which is suitable for punching small holes.
The above dimensions are a preferred design of the punch and do not represent that they can only be set.
As for the arrangement of the punching portion 30, as shown in fig. 1 and 2, the punching portion 30 includes a core connected to the small end of the tapered cone 20, and a forming blade 40 arranged on the radially outer surface of the core, and a blade tip 60 is arranged on the side of the forming blade 40 away from the tapered cone 20. When punching, the cutting edge 60 contacts with the product to be punched, the material is cut off, and a through hole is formed on the product.
Specifically, as shown in fig. 3, the cutting edge 60 has a rake angle of 3 to 6 ° in the radial direction of the tool, and the cutting edge 60 has a relief angle of 1.5 ° in the axial direction of the tool.
After improvement, in the embodiment, the forming blade 40 is arranged, and the blade tip 60 is arranged on the side of the forming blade 40 away from the tapered cone 20, so that when punching is performed, the blade tip 60 can contact with a material to be processed first, and the material to be processed is subjected to pre-punching, so that the actual thickness of the material to be punched is reduced, and the punching strength is reduced; meanwhile, on one hand, the blade tip 60 is enabled to have a front angle of 3-6 degrees, the blade tip 60 is ensured to be sharp enough, punching processing is facilitated, on the other hand, the blade tip 60 is enabled to have a rear angle of 1.5 degrees, the volume of the blade tip 60 is improved, the strength of the forming blade 40 is increased, the forming blade 40 is prevented from collapsing, and the service life of the punch is prolonged.
With respect to the number of the shaping edges 40, in some embodiments, it is preferable that the shaping edges 40 are provided in four, and four shaping edges 40 are provided along the axial extension of the cutter.
This embodiment is through reasonable quantity that sets up shaping sword 40 for shaping sword 40 atress is balanced, avoids the drift to buckle, simultaneously, avoids setting up too much shaping sword 40, reduces shaping sword 40's intensity.
In some embodiments where four profiled edges 40 are provided, it is also possible to form the ends of the core with a recess having a radius of curvature of 25 mm, the edges of the recess connecting the front faces of the four profiled edges 40.
The embodiment can utilize the concave position to store the excess material, reduce the compression of the raw materials to the blade tip 60 and reduce the abrasion to the blade tip 60.
In some embodiments in which more than one profiled edge 40 is provided, a groove 50 may be formed between adjacent profiled edges 40, the groove base of the groove 50 being arranged parallel to the profiled edge 40.
The present embodiment can facilitate the discharge of the debris generated by the punching by forming the groove 50 between the adjacent forming blades 40, reduce the friction of the debris against the blade tip 60, reduce the wear, and ensure the strength and the life of the forming blades 40.
In addition, the groove bottom of the groove 50 and the blade tip 60 have the same parameters, so that further punching is performed, and the punching quality is improved.
For a specific arrangement of the groove 50, the depth of the groove 50 may be 0.17 mm, and the width of the groove 50 may be 0.7 mm.
Because the depth of the groove 50 is smaller, the size difference deviation of the punched end face is less, the influence on the processing precision is less, and the punching quality can be powerfully ensured.
In some embodiments, the groove 50 may extend along the axial direction of the tool, and the groove 50 extends to the conical surface of the tapered cone 20.
Advantageously, the chips can move along the grooves 50, thereby preventing the chips from being squeezed against the outer surface of the tapered cone 20, and preventing the chips from being imprinted with the surface of the product, thereby preventing the appearance quality of the die cutting from being affected.
Of course, on the basis of the specific embodiment in which the recess 50 is provided, it is also possible to extend the recess 50 to the radially outer surface of the tool shank 10.
Therefore, the scraps can be conveniently moved to the cutter bar 10 from the groove 50, the scraps can be smoothly discharged, and the scraps are prevented from being accumulated.
In order to further improve the performance of the punch, the punching portion 30 may be plated with a silicon-based film layer.
After the silicon film layer passes through, the smoothness of the cutting part is improved, the strength is improved, the wear resistance is improved, and the service life of the punch is prolonged. The silicon-based film layer can be manufactured by Powell coating (Harbin) Co.
To facilitate die cutting, in some embodiments, the radial surface of the shank 10 may also be provided with a step 80, the step 80 being provided at an end of the shank 10 remote from the tapered cone 20.
Before the improvement, the punching acting force is transmitted by means of the friction force between the outer surface of the cutter bar 10 and equipment, after the improvement, the step 80 can be used for transmitting the force, the reliability is higher, in addition, a punch is accurately positioned, and the problem of inaccurate punching depth is avoided.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.
Claims (10)
1. The punch for machining the medical instrument is characterized by comprising a cutter bar (10), a tapered cone (20) connected with one end of the cutter bar (10), and a punching portion (30) connected with one end, far away from the cutter bar (10), of the tapered cone (20), wherein the punching portion (30) comprises a cutter core connected with the small end of the tapered cone (20) and a forming blade (40) arranged on the radial outer surface of the cutter core, one side, far away from the tapered cone (20), of the forming blade (40) is provided with a blade tip (60), the blade tip (60) is provided with a front angle of 3-6 degrees along the radial direction of the cutter, and the blade tip (60) is provided with a rear angle of 1.5 degrees along the axial direction of the cutter.
2. Punch for machining medical instruments according to claim 1, characterised in that the forming edges (40) are provided in four, four forming edges (40) being provided extending in the axial direction of the tool.
3. The punch for machining medical instruments according to claim 2, wherein the end of the core forms a recess with a radius of curvature of 25 mm, the edge of the recess connecting the front faces of the four forming edges (40).
4. The punch for machining a medical instrument according to claim 2, wherein a groove (50) is formed between adjacent forming edges (40), and a groove bottom of the groove (50) is arranged in parallel with the forming edges (40).
5. Punch for machining medical instruments according to claim 4, characterized in that the depth of the recess (50) is 0.17 mm and the width of the recess (50) is 0.7 mm.
6. The punch for machining medical instruments according to claim 4, characterized in that the recess (50) extends in the axial direction of the tool, the recess (50) extending onto the conical surface of the tapered cone (20).
7. Punch for machining medical instruments according to claim 6, characterized in that the recess (50) extends to the radially outer surface of the shank (10).
8. The punch for machining medical devices according to claim 1, wherein the die-cut portion (30) is plated with a silicon-based film layer.
9. The punch for machining a medical instrument according to claim 1, characterized in that the total length of the punch is 35 mm, the length of the blanking portion (30) is 3.5 mm, and the outer diameter of the blanking portion (30) is 2.35 mm.
10. The punch for machining a medical instrument according to claim 1, characterized in that a radial surface of the shank (10) is provided with a step (80), the step (80) being provided at an end of the shank (10) remote from the tapered cone (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217547.1U CN210614812U (en) | 2019-07-29 | 2019-07-29 | Punch for processing medical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217547.1U CN210614812U (en) | 2019-07-29 | 2019-07-29 | Punch for processing medical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210614812U true CN210614812U (en) | 2020-05-26 |
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ID=70764545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921217547.1U Active CN210614812U (en) | 2019-07-29 | 2019-07-29 | Punch for processing medical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210614812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458239A (en) * | 2021-07-15 | 2021-10-01 | 江门市中刀精密科技有限公司 | Plum blossom-shaped punch for processing horizontal RC implant of bone |
| CN113500136A (en) * | 2021-07-15 | 2021-10-15 | 江门市中刀精密科技有限公司 | Square precision punch for processing horizontal RC implant of bone |
-
2019
- 2019-07-29 CN CN201921217547.1U patent/CN210614812U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458239A (en) * | 2021-07-15 | 2021-10-01 | 江门市中刀精密科技有限公司 | Plum blossom-shaped punch for processing horizontal RC implant of bone |
| CN113500136A (en) * | 2021-07-15 | 2021-10-15 | 江门市中刀精密科技有限公司 | Square precision punch for processing horizontal RC implant of bone |
| CN113458239B (en) * | 2021-07-15 | 2023-08-08 | 江门市中刀精密科技有限公司 | Quincuncial punch for processing bone level RC implant |
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