CN112809103A - High-precision machining device for minimally invasive surgical instrument - Google Patents
High-precision machining device for minimally invasive surgical instrument Download PDFInfo
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- CN112809103A CN112809103A CN201911124482.0A CN201911124482A CN112809103A CN 112809103 A CN112809103 A CN 112809103A CN 201911124482 A CN201911124482 A CN 201911124482A CN 112809103 A CN112809103 A CN 112809103A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
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Abstract
The invention discloses a high-precision machining device for minimally invasive surgical instruments, which comprises a first support, a rotating seat arranged on the first support, a positioning seat used for fixing an outer tube, a motor and a cylinder, wherein an output shaft of the motor is connected with the rotating seat through a coupler and used for driving the rotating seat to rotate, and a piston rod of the cylinder is connected with the positioning seat and used for driving the positioning seat to move on a track; the outer pipe of the thread groove is sleeved on the mandrel, a strip-shaped groove is formed in the mandrel and located at the joint of the clamping portion and the thread portion, the groove is arranged along the axial direction of the mandrel, and one end of the groove penetrates through the first thread groove close to the clamping portion. According to the invention, the positioning precision of the spring on the mandrel and the outer pipe in the processing process is ensured through the matching arrangement of the groove on the mandrel and the two grooves on the outer pipe, so that the position precision of the spring in the outer pipe is obviously improved, namely the precision of the processed inner thread of the outer pipe and the consistency of the threads processed for many times are ensured.
Description
Technical Field
The invention relates to a high-precision machining device for minimally invasive surgical instruments, and belongs to the field of internal thread machining.
Background
In minimally invasive surgery, medical materials for treatment need to be placed at a wound site due to internal tissue trauma, while such degradable medical materials are fixed in muscle tissue using degradable nails. In the operation process, the nail needs to be screwed out of an operation gun provided with a plurality of nails to be driven into a human body, in order to ensure that the nail smoothly enters a designated position, the precision of a sleeve for placing the nail in the operation gun is required to be very high, and because the nail and the sleeve are fixed in the sleeve in a thread matching mode, the thread pitch inside the sleeve is required to be consistent, but because the pipe wall of the sleeve is thin, an internal thread with very high precision cannot be processed, the operation is seriously influenced, and therefore, how to develop the processing device with the high-precision internal thread sleeve becomes the research direction of technicians in the field.
Disclosure of Invention
The invention aims to provide a high-precision machining device for minimally invasive surgical instruments, which ensures the positioning precision of a spring on a mandrel and an outer tube in the machining process, particularly the precision of the spring on the mandrel and the outer tube in the circumferential direction by matching the groove on the mandrel and two grooves on the outer tube, and further remarkably improves the position precision of the spring in the outer tube, namely the precision of the machined inner threads of the outer tube and the consistency of the threads machined for multiple times.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-precision machining device for minimally invasive surgical instruments is used for machining a threaded pipe, and the threaded pipe comprises an outer pipe and threads located on the inner wall of the outer pipe;
the processing device comprises a first support, a rotating seat arranged on the first support, a positioning seat used for fixing the outer tube, a motor and an air cylinder, wherein an output shaft of the motor is connected with the rotating seat through a coupler and used for driving the rotating seat to rotate, the positioning seat is slidably arranged on a track, and a piston rod of the air cylinder is connected with the positioning seat and used for driving the positioning seat to move on the track;
the clamping fixture is connected to the rotating seat and further comprises a mandrel, a first sleeve, a second sleeve and a clamping jaw, the first sleeve and the second sleeve are sequentially sleeved on the clamping jaw, and one end of the clamping jaw extends out of the second sleeve;
the mandrel further comprises a clamping part and a threaded part continuously provided with a threaded groove, the clamping part is embedded into the clamping jaw, the threaded groove of the threaded part is used for embedding a spring, and the central axes of the mandrel arranged on the rotating seat and the outer tube arranged on the positioning seat are positioned on the same straight line;
the outer pipe of the thread groove is sleeved on the mandrel, the spring is connected with the inner wall of the outer pipe to form a thread, and one end of the outer pipe is embedded into a chuck extending out of the second sleeve;
a strip-shaped groove is formed in the mandrel and positioned at the joint of the clamping part and the threaded part, the groove is arranged along the axial direction of the mandrel, and one end of the groove penetrates through a first thread groove close to the clamping part;
the positioning seat comprises a movable plate connected with the rail and a mounting plate mounted on the movable plate, and a mounting groove for embedding one end of the outer pipe is formed in the mounting plate;
at least one side wall of the mounting groove is provided with a first positioning block, and the pipe wall of the outer pipe is provided with a plurality of first positioning grooves for the first positioning blocks to be embedded in;
a second positioning groove is formed in the end face, close to the tail end of the outer tube, of the first positioning groove, and a second positioning block matched with the second positioning groove is arranged in the mounting groove;
a supporting frame is arranged between the first support and the positioning seat, the supporting frame further comprises a base, a second air cylinder and two movably arranged supporting seats, the second air cylinder is installed on the base and used for driving the two supporting seats to loosen or clamp, one supporting wheel is installed on one supporting seat, two supporting wheels are installed on the other supporting seat, and a circular area for embedding one end of the outer pipe is formed between the three supporting wheels.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the rotating base is mounted on the first support through a bearing seat.
2. In the above scheme, one end of the thread part, which is opposite to the clamping part, is provided with an end head part.
3. In the above scheme, the spring is connected with the inner wall of the outer tube through laser welding.
4. In the above scheme, the ratio of the depth of the groove to the diameter of the mandrel is 1: 3 to 6.
5. In the above scheme, one end of the clamping jaw for clamping the outer tube is provided with a notch corresponding to the groove.
6. In the above scheme, the number of the first positioning grooves is 3.
7. In the scheme, the supporting wheel is coated with the elastic ring.
8. In the above scheme, the supporting wheel is rotatably arranged on the supporting seat through a rotating shaft.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the high-precision machining device for the minimally invasive surgical instrument, disclosed by the invention, has the advantages that the spring is connected to the inner wall of the outer tube, so that the purpose of machining threads on the thin and soft tube wall is realized, the machining is convenient, the outer tube cannot be damaged, the machining precision can be ensured, and the thread pitch of internal threads and the like are ensured to have good consistency; and through the motor, the cylinder cooperation roating seat and positioning seat, realized the full automatization of processing basically, realized placing the spring inside the outer tube with accuracy, both practiced thrift the manpower, can avoid human error and error again, guarantee the precision of processing.
2. The invention relates to a high-precision processing device for minimally invasive surgical instruments, wherein a strip-shaped groove is formed in a mandrel and is positioned at the joint of a clamping part and a threaded part, the groove is arranged along the axial direction of the mandrel, one end of the groove penetrates through a first threaded groove close to the clamping part, and the arrangement of the groove provides a stop surface on the circumferential direction for the end surface of a spring while cutting off the threaded groove, so that the position of the spring on the mandrel is completely consistent during each processing, the processed threads have good consistency, further, a nail in a threaded pipe cannot fall off in advance, the nail cannot be clamped in the threads when the nail needs to fall off, the precision of guiding the nail by surgical equipment is ensured, and the success of an operation is guaranteed.
3. The invention relates to a high-precision processing device for minimally invasive surgical instruments, wherein a second positioning groove is arranged on the end surface of the outer tube close to a first positioning groove, a second positioning block matched with the second positioning groove is arranged in the mounting groove, the arrangement of the second positioning groove or the first positioning groove can play a positioning role in clamping the outer tube, the consistency of the position of the outer tube in each processing process is ensured, thereby ensuring the processing precision, and the combined arrangement of the two positioning grooves further plays a role in preventing the outer tube from generating circumferential rotation deviation in the processing process to influence the precision, further improves the processing precision, and further ensures the positioning precision of a spring on a mandrel and the outer tube in the processing process, particularly can ensure the circumferential precision of the spring on the mandrel and the outer tube in the processing process through the matched arrangement of the groove on the mandrel and the two grooves on the outer tube, and the position precision of the spring in the outer pipe is obviously improved, namely the precision of the processed inner thread of the outer pipe and the consistency of the threads processed for many times are ensured.
4. The invention relates to a high-precision processing device for minimally invasive surgical instruments, wherein a support frame is arranged between a first support and a positioning seat, the support frame further comprises a base, a second air cylinder and two movably arranged supporting seats, the second air cylinder is arranged on the base and used for driving the two supporting seats to loosen or clamp, one supporting seat is provided with a supporting wheel, the other supporting seat is provided with two supporting wheels, a circular area for embedding one end of an outer tube is formed between the three supporting wheels, the arrangement of the supporting seats is ingenious in structure, and stable support is provided for the middle part of the outer tube in the processing process so as to maintain the stability of the outer tube in the movement process towards a mandrel, thereby ensuring the processing precision.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision machining device for minimally invasive surgical instruments according to the present invention;
FIG. 2 is a schematic view of a positioning seat in the high-precision machining device for minimally invasive surgical instruments according to the present invention;
FIG. 3 is a schematic structural view of a clamping jig of the high-precision machining device of the invention;
FIG. 4 is a partial structural view of a high-precision machining device for minimally invasive surgical instruments according to the present invention;
FIG. 5 is a partial structural cross-sectional view of a threaded tube of the high-precision machining apparatus for minimally invasive surgical instruments according to the present invention;
FIG. 6 is a schematic structural diagram of a mandrel of the high-precision machining device for the minimally invasive surgical instrument according to the present invention;
FIG. 7 is a schematic view of a support seat structure in the high-precision machining apparatus for minimally invasive surgical instruments according to the present invention.
In the above drawings: 1. a mandrel; 101. a clamping portion; 102. a thread groove; 103. a threaded portion; 104. an end portion; 105. a groove; 2. a first sleeve; 3. a second sleeve; 4. a clamping jaw; 401. a notch; 5. a spring; 10. a threaded pipe; 11. an outer tube; 12. a first positioning groove; 13. a second positioning groove; 14. a support frame; 15. a base; 16. a second cylinder; 17. a supporting seat; 18. a support wheel; 21. a first bracket; 22. a rotating base; 23. positioning seats; 24. a motor; 25. a cylinder; 26. a track; 27. a movable plate; 28. mounting a plate; 29. mounting grooves; 30. a first positioning block; 31. and a second positioning block.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a high-precision processing device for minimally invasive surgical instruments is used for processing a threaded pipe 10, wherein the threaded pipe 10 comprises an outer pipe 11 and threads positioned on the inner wall of the outer pipe 11;
the processing device comprises a first support 21, a rotating seat 22 arranged on the first support 21, a positioning seat 23 used for fixing the outer tube 11, a motor 24 and an air cylinder 25, wherein an output shaft of the motor 24 is connected with the rotating seat 22 through a coupler and used for driving the rotating seat 22 to rotate, the positioning seat 23 is slidably arranged on a track 26, and a piston rod of the air cylinder 25 is connected with the positioning seat 23 and used for driving the positioning seat 23 to move on the track 26;
the rotating base 22 is connected with a clamping jig, the clamping jig further comprises a mandrel 1, a first sleeve 2, a second sleeve 3 and clamping jaws 4, the first sleeve 2 and the second sleeve 3 are sequentially sleeved on the clamping jaws 4, one end of each clamping jaw 4 extends out of the second sleeve 3, the clamping jaw 4 area positioned in the first sleeve 2 is used for clamping the mandrel 1, and the clamping jaw 4 area extending out of the second sleeve 3 is used for clamping the outer pipe 11 of the threaded pipe 10;
the mandrel 1 further comprises a clamping part 101 and a threaded part 103 continuously provided with a threaded groove 102, the clamping part 101 is embedded into the clamping jaw 4, the threaded groove 102 of the threaded part 103 is used for embedding a spring 5, and the central axes of the mandrel 1 arranged on the rotating seat 22 and the outer tube 11 arranged on the positioning seat 23 are positioned on the same straight line;
an outer tube 11 of the thread groove 102 is sleeved on the mandrel 1, the spring 5 is connected with the inner wall of the outer tube 11 to form a thread, and one end of the outer tube 11 is embedded into a chuck 4 extending out of the second sleeve 3;
a strip-shaped groove 105 is formed in the mandrel 1 at the joint of the clamping part 101 and the threaded part 103, the groove 105 is arranged along the axial direction of the mandrel 1, and one end of the groove 105 penetrates through a first thread groove 102 close to the clamping part 101;
the positioning seat 23 comprises a movable plate 27 connected with the rail 26 and a mounting plate 28 mounted on the movable plate 27, wherein a mounting groove 29 for embedding one end of the outer tube 11 is formed in the mounting plate 28;
at least one side wall of the mounting groove 29 is provided with a first positioning block 30, and the pipe wall of the outer pipe 11 is provided with a plurality of first positioning grooves 12 for the first positioning blocks 30 to be embedded;
a second positioning groove 13 is formed in the end face, close to the end face of the outer tube 11 of the first positioning groove 12, of the outer tube, and a second positioning block 31 matched with the second positioning groove 13 is arranged in the mounting groove 29;
a supporting frame 14 is arranged between the first support 21 and the positioning seat 23, the supporting frame 14 further comprises a base 15, a second cylinder 16 and two movably arranged supporting seats 17, the second cylinder 16 is mounted on the base 15 and used for driving the two supporting seats 17 to loosen or clamp, one supporting wheel 18 is mounted on one supporting seat 17, two supporting wheels 18 are mounted on the other supporting seat 17, and a circular area for embedding one end of the outer tube 11 is formed between the three supporting wheels 18.
The rotary seat 22 is mounted on the first bracket 21 through a bearing seat; the end of the thread part 103 opposite to the clamping part 101 is provided with an end head part 104; the spring 5 is connected with the inner wall of the outer tube 11 through laser welding; the ratio of the depth of the groove 105 to the diameter of the mandrel 1 is 1: 4; the end of the clamping jaw 4 for clamping the outer tube 11 is provided with a notch 401 corresponding to the groove 105.
Example 2: a high-precision processing device for minimally invasive surgical instruments is used for processing a threaded pipe 10, wherein the threaded pipe 10 comprises an outer pipe 11 and threads positioned on the inner wall of the outer pipe 11;
the processing device comprises a first support 21, a rotating seat 22 arranged on the first support 21, a positioning seat 23 used for fixing the outer tube 11, a motor 24 and an air cylinder 25, wherein an output shaft of the motor 24 is connected with the rotating seat 22 through a coupler and used for driving the rotating seat 22 to rotate, the positioning seat 23 is slidably arranged on a track 26, and a piston rod of the air cylinder 25 is connected with the positioning seat 23 and used for driving the positioning seat 23 to move on the track 26;
the rotating base 22 is connected with a clamping jig, the clamping jig further comprises a mandrel 1, a first sleeve 2, a second sleeve 3 and clamping jaws 4, the first sleeve 2 and the second sleeve 3 are sequentially sleeved on the clamping jaws 4, one end of each clamping jaw 4 extends out of the second sleeve 3, the clamping jaw 4 area positioned in the first sleeve 2 is used for clamping the mandrel 1, and the clamping jaw 4 area extending out of the second sleeve 3 is used for clamping the outer pipe 11 of the threaded pipe 10;
the mandrel 1 further comprises a clamping part 101 and a threaded part 103 continuously provided with a threaded groove 102, the clamping part 101 is embedded into the clamping jaw 4, the threaded groove 102 of the threaded part 103 is used for embedding a spring 5, and the central axes of the mandrel 1 arranged on the rotating seat 22 and the outer tube 11 arranged on the positioning seat 23 are positioned on the same straight line;
an outer tube 11 of the thread groove 102 is sleeved on the mandrel 1, the spring 5 is connected with the inner wall of the outer tube 11 to form a thread, and one end of the outer tube 11 is embedded into a chuck 4 extending out of the second sleeve 3;
a strip-shaped groove 105 is formed in the mandrel 1 at the joint of the clamping part 101 and the threaded part 103, the groove 105 is arranged along the axial direction of the mandrel 1, and one end of the groove 105 penetrates through a first thread groove 102 close to the clamping part 101;
the positioning seat 23 comprises a movable plate 27 connected with the rail 26 and a mounting plate 28 mounted on the movable plate 27, wherein a mounting groove 29 for embedding one end of the outer tube 11 is formed in the mounting plate 28;
at least one side wall of the mounting groove 29 is provided with a first positioning block 30, and the pipe wall of the outer pipe 11 is provided with a plurality of first positioning grooves 12 for the first positioning blocks 30 to be embedded;
a second positioning groove 13 is formed in the end face, close to the end face of the outer tube 11 of the first positioning groove 12, of the outer tube, and a second positioning block 31 matched with the second positioning groove 13 is arranged in the mounting groove 29;
a supporting frame 14 is arranged between the first support 21 and the positioning seat 23, the supporting frame 14 further comprises a base 15, a second cylinder 16 and two movably arranged supporting seats 17, the second cylinder 16 is mounted on the base 15 and used for driving the two supporting seats 17 to loosen or clamp, one supporting wheel 18 is mounted on one supporting seat 17, two supporting wheels 18 are mounted on the other supporting seat 17, and a circular area for embedding one end of the outer tube 11 is formed between the three supporting wheels 18.
The spring 5 is connected with the inner wall of the outer tube 11 through laser welding; the number of the first positioning grooves 12 is 3; the supporting wheel 18 is covered with an elastic ring; the supporting wheel 18 is rotatably mounted on the supporting seat 17 through a rotating shaft; the end of the clamping jaw 4 for clamping the outer tube 11 is provided with a notch 401 corresponding to the groove 105.
When the high-precision machining device for the minimally invasive surgical instrument is adopted, the spring is connected to the inner wall of the outer tube, so that the purpose of machining threads on the thin and soft tube wall is achieved, machining is facilitated, the outer tube cannot be damaged, machining precision can be guaranteed, and good consistency of the thread pitch of internal threads and the like is guaranteed; the motor and the air cylinder are matched with the rotating seat and the positioning seat, so that the full automation of processing is basically realized, the spring is accurately placed in the outer tube, the labor is saved, human errors and errors can be avoided, and the processing precision is ensured; in addition, the arrangement of the groove provides a circumferential stop surface for the end surface of the spring while cutting off the thread groove, so that the position of the spring on the mandrel is completely consistent during each processing, the processed thread has good consistency, further, a nail in the threaded pipe cannot fall off in advance, and the nail cannot be thrown and clamped in the thread when needing to fall off, thereby ensuring the guiding precision of the nail by surgical equipment and providing guarantee for the success of the surgery;
in addition, the arrangement of the second positioning groove or the arrangement of the first positioning groove can play a role in positioning the outer pipe, and the consistency of the position of the outer pipe in each machining process is ensured, so that the machining precision is ensured; in addition, the supporting seat is ingenious in structure, stable support is provided for the middle of the outer tube in the machining process, stability of the outer tube in the movement process of the mandrel is maintained, and machining precision is guaranteed.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. A high-precision processing device for minimally invasive surgical instruments is characterized in that: the method is used for machining a threaded pipe (10), wherein the threaded pipe (10) comprises an outer pipe (11) and threads located on the inner wall of the outer pipe (11);
the processing device comprises a first support (21), a rotating seat (22) arranged on the first support (21), a positioning seat (23) used for fixing the outer tube (11), a motor (24) and an air cylinder (25), wherein an output shaft of the motor (24) is connected with the rotating seat (22) through a coupler and used for driving the rotating seat (22) to rotate, the positioning seat (23) is slidably arranged on a track (26), and a piston rod of the air cylinder (25) is connected with the positioning seat (23) and used for driving the positioning seat (23) to move on the track (26);
the clamping fixture is connected to the rotating seat (22), the clamping fixture further comprises a mandrel (1), a first sleeve (2), a second sleeve (3) and a clamping jaw (4), the first sleeve (2) and the second sleeve (3) are sequentially sleeved on the clamping jaw (4), and one end of the clamping jaw (4) extends out of the second sleeve (3);
the mandrel (1) further comprises a clamping part (101) and a threaded part (103) with a threaded groove (102) continuously formed, the clamping part (101) is embedded into the clamping jaw (4), the threaded groove (102) of the threaded part (103) is used for embedding a spring (5), and the central axes of the mandrel (1) installed on the rotating seat (22) and the outer tube (11) installed on the positioning seat (23) are located on the same straight line;
an outer pipe (11) of the thread groove (102) is sleeved on the mandrel (1), the spring (5) is connected with the inner wall of the outer pipe (11) to form a thread, and one end of the outer pipe (11) is embedded into a chuck (4) extending out of the second sleeve (3);
a strip-shaped groove (105) is formed in the mandrel (1) and is positioned at the joint of the clamping part (101) and the threaded part (103), the groove (105) is arranged along the axial direction of the mandrel (1), and one end of the groove (105) penetrates through a first thread groove (102) close to the clamping part (101);
the positioning seat (23) comprises a movable plate (27) connected with the rail (26) and a mounting plate (28) mounted on the movable plate (27), and a mounting groove (29) for embedding one end of the outer pipe (11) is formed in the mounting plate (28);
at least one side wall of the mounting groove (29) is provided with a first positioning block (30), and the pipe wall of the outer pipe (11) is provided with a plurality of first positioning grooves (12) for the first positioning blocks (30) to be embedded;
a second positioning groove (13) is formed in the end face of the tail end of the outer tube (11) close to the first positioning groove (12), and a second positioning block (31) matched with the second positioning groove (13) is arranged in the mounting groove (29);
be provided with a support frame (14) between first support (21) and positioning seat (23), this support frame (14) further includes base (15), second cylinder (16) and two movable supporting seats (17) that set up, second cylinder (16) are installed on base (15) for drive two supporting seats (17) and loosen or press from both sides tightly, install a supporting wheel (18) on one supporting seat (17), install two supporting wheels (18) on another supporting seat (17), form a circular region that supplies outer tube (11) one end embedding between this three supporting wheel (18).
2. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the rotating seat (22) is arranged on the first bracket (21) through a bearing seat.
3. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: one end of the threaded part (103), which is opposite to the clamping part (101), is provided with an end head part (104).
4. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the spring (5) is connected with the inner wall of the outer tube (11) through laser welding.
5. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the ratio of the depth of the groove (105) to the diameter of the mandrel (1) is 1: 3 to 6.
6. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: one end of the clamping jaw (4) used for clamping the outer tube (11) is provided with a notch (401) corresponding to the groove (105).
7. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the number of the first positioning grooves (12) is 3.
8. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the supporting wheel (18) is covered with an elastic ring.
9. The high precision machining device for minimally invasive surgical instruments according to claim 1, characterized in that: the supporting wheel (18) is rotatably arranged on the supporting seat (17) through a rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124482.0A CN112809103B (en) | 2019-11-18 | 2019-11-18 | High-precision machining device for minimally invasive surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124482.0A CN112809103B (en) | 2019-11-18 | 2019-11-18 | High-precision machining device for minimally invasive surgical instrument |
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| Publication Number | Publication Date |
|---|---|
| CN112809103A true CN112809103A (en) | 2021-05-18 |
| CN112809103B CN112809103B (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911124482.0A Active CN112809103B (en) | 2019-11-18 | 2019-11-18 | High-precision machining device for minimally invasive surgical instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB953838A (en) * | 1962-02-16 | 1964-04-02 | Bosch Gmbh Robert | Improvements in or relating to apparatus for forming screwthreads |
| CN105215480A (en) * | 2015-09-29 | 2016-01-06 | 张义勇 | A kind of self-tapping method |
| CN105643019A (en) * | 2016-01-05 | 2016-06-08 | 浙江大学 | Whirlwind forming method and device for internal thread |
| CN106077846A (en) * | 2016-06-20 | 2016-11-09 | 北京精密机电控制设备研究所 | A kind of long nut female thread grinding fixture |
| CN208132142U (en) * | 2018-03-12 | 2018-11-23 | 江阴市东杰纺机专件有限公司 | A kind of tool structure for processing roller inner hole internal screw thread |
-
2019
- 2019-11-18 CN CN201911124482.0A patent/CN112809103B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB953838A (en) * | 1962-02-16 | 1964-04-02 | Bosch Gmbh Robert | Improvements in or relating to apparatus for forming screwthreads |
| CN105215480A (en) * | 2015-09-29 | 2016-01-06 | 张义勇 | A kind of self-tapping method |
| CN105643019A (en) * | 2016-01-05 | 2016-06-08 | 浙江大学 | Whirlwind forming method and device for internal thread |
| CN106077846A (en) * | 2016-06-20 | 2016-11-09 | 北京精密机电控制设备研究所 | A kind of long nut female thread grinding fixture |
| CN208132142U (en) * | 2018-03-12 | 2018-11-23 | 江阴市东杰纺机专件有限公司 | A kind of tool structure for processing roller inner hole internal screw thread |
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| Publication number | Publication date |
|---|---|
| CN112809103B (en) | 2023-07-11 |
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