CN111975296B - Machining method of drill guide with eccentric teeth in knee joint operation - Google Patents
Machining method of drill guide with eccentric teeth in knee joint operation Download PDFInfo
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- CN111975296B CN111975296B CN202010801139.1A CN202010801139A CN111975296B CN 111975296 B CN111975296 B CN 111975296B CN 202010801139 A CN202010801139 A CN 202010801139A CN 111975296 B CN111975296 B CN 111975296B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
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Abstract
The invention discloses a processing method of a drill guide with eccentric teeth in knee joint surgery, which comprises the following steps: turning and processing the guide hole and the appearance and cutting off to form a rough blank; straightening the turned blank material to ensure straightness; clamping the straightened blank material, drilling an eccentric center hole on one side of a guide hole of the blank material, and milling an eccentric clamping position and a plane on the other side of the blank material; clamping an eccentric clamping position by using a numerical control lathe chuck and propping an eccentric center hole to turn an eccentric tooth by using a tail frame; deburring the eccentric teeth; straightening the straightness; turning off an eccentric center hole and turning a conical surface by a numerical control lathe, and then reversely clamping and turning off an eccentric clamping position; drilling a clearance hole in the deep hole; and milling saw teeth on one side of the guide hole and chamfering the hole opening on the other side to obtain the formed drill guide. The invention has the advantages that the cutter back-off phenomenon in the processing process can be effectively improved, and the relative position of the plane of the boss and the eccentric tooth and the coaxiality of the guide hole and the excircle are easy to control.
Description
Technical Field
The invention relates to a processing method of a drill guide with eccentric teeth in knee joint surgery.
Background
The anterior cruciate ligament of a human body is torn due to the reason that the direction is suddenly changed in sports, the torque of the knee (football, skiing and the like) is generated, or the tibia is directly impacted from the front and the back or is suddenly rotated, and the like, so that the anterior cruciate ligament reconstruction operation is required. During the implementation of the anterior cruciate ligament reconstruction operation, a hollow drill guide with eccentric teeth with relative position requirements is used for guiding a drill so as to open a tibial tunnel.
The traditional technological process for machining the drill guide in a machining mode comprises the following two processes:
the first method comprises the following steps: blanking (the blanking length is longer than the finished product length by one clamping part), drilling a step hole in a deep hole, correcting an outer circle by double jacking of a numerical control lathe, turning the appearance by the numerical control lathe in a mode of clamping one jack, milling a plane on one side of a boss by a machining center, milling an eccentric clamping part, clamping an eccentric clamping part of a product by the numerical control lathe, sleeving an eccentric clamp on the other end of the product, turning eccentric teeth by the mode of clamping one jack, milling the eccentric clamping part on one side of the boss by the machining center by a special tool, and milling sawteeth on the other end;
and the second method comprises the following steps: the method comprises the steps of machining eccentric teeth and other shapes except for sawtooth features by a longitudinal cutting lathe → deburring → straightening → drilling a guide hole after the digital control lathe is used for calibrating jumping of a surface, and then drilling a deep hole and drilling a clearance hole → milling the sawtooth by special tools in a machining center → deburring → cleaning → heat treatment → straightening.
For the first method, when the numerical control lathe clamps a top lathe in shape, because the inner step hole is machined, a cutter back-off phenomenon can occur in the machining process, and the excircle cylindricity of the drill guide is difficult to control; in addition, when the eccentric teeth of the numerical control car are turned, the phenomenon of cutter back-off can also occur, the design difficulty of the eccentric tool is high, the tool and the drill guider are not integrated, the tool is easy to clamp and unstable after being subjected to cutting torque, and the size of the tooth shape of the eccentric teeth is difficult to control.
For the second method, a slitting lathe is required to have the function of turning eccentric teeth, and the requirement on equipment is high. And the eccentric teeth need to be processed preferentially in the processing process, the tool consumption is large, and the tool is easy to wear.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a machining method of a drill guide with eccentric teeth in knee joint surgery, which can effectively improve the cutter back-off phenomenon in the machining process, is easy to control the relative position of a boss plane and the eccentric teeth and the coaxiality of a guide hole and an excircle, has small tool consumption in machining the eccentric teeth, does not waste tools, and can realize the economical and stable machining of the hollow drill guide.
In order to achieve the above object, the present invention adopts the following technical solutions:
a processing method of a drill guide with eccentric teeth in knee joint surgery comprises the following steps:
turning and processing the guide hole and the appearance and cutting off to form a rough blank;
straightening the turned blank material to ensure straightness;
clamping the straightened blank material, drilling an eccentric center hole on one side of a guide hole of the blank material, and milling an eccentric clamping position and a plane on the other side of the blank material;
clamping an eccentric clamping position by using a numerical control lathe chuck and propping an eccentric center hole to turn an eccentric tooth by using a tail frame;
deburring the eccentric teeth;
straightening the straightness;
turning off an eccentric center hole and turning a conical surface by a numerical control lathe, and then reversely clamping and turning off an eccentric clamping position;
drilling a clearance hole in the deep hole;
and milling saw teeth on one side of the guide hole and chamfering the hole opening on the other side to obtain the formed drill guide.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and deburring the formed drill guide.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and cleaning the drill guide after deburring to remove surface stains.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: the cleaned drill guide was electropolished to remove scale.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and carrying out integral passivation treatment on the drill guide after removing the oxide skin.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and (5) carrying out laser marking on the passivated drill guide.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and locally passivating the marking digital area of the drill guide.
Further, the processing method of the drill guide with eccentric teeth in the knee joint operation further comprises the following steps: and cleaning the drill bit guide after the marking digital area is locally passivated to remove the passivating liquid.
The invention has the advantages that the cutter back-off phenomenon in the machining process can be effectively improved, the relative position of the plane of the boss and the eccentric tooth and the coaxiality of the guide hole and the excircle are easy to control, the tool consumption for machining the eccentric tooth is small, no tool is wasted, and the hollow drill guide can be economically and stably machined.
Drawings
FIG. 1 is a flow chart of a method of manufacturing an eccentric toothed drill guide for knee surgery of the present invention;
FIG. 2 is a schematic view of the method of machining the eccentric toothed drill guide in the knee joint procedure of FIG. 1 for turning the guide hole and profile and severing the resulting blank;
FIG. 3 is a schematic illustration of a blank after eccentric center point hole drilling and eccentric clamping and plane milling of the method of machining the eccentric toothed drill guide of FIG. 1 for knee surgery;
FIG. 4 is a schematic view of a blank material after turning eccentric teeth for the method of machining the eccentric-toothed drill guide in the knee joint operation of FIG. 1;
FIG. 5 is a schematic view of a blank after machining an eccentric apex hole and beveling in a beveling process of the method for machining the drill guide with eccentric teeth in the knee joint operation of FIG. 1;
FIG. 6 is a schematic view of a blank after turning off an eccentric clamping position in a taper turning process of the method for machining the drill guide with eccentric teeth in the knee joint operation in FIG. 1;
FIG. 7 is a schematic illustration of a deep drilled blank of the method of machining the eccentric toothed drill guide of FIG. 1 in knee surgery;
FIG. 8 is a schematic view of milled sawtooth and bore chamfered blank of the method of machining the eccentric toothed drill guide in the knee joint procedure of FIG. 1.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 8, a method for processing a drill guide with eccentric teeth in knee joint surgery includes the following steps:
turning: turning and processing the guide hole and the appearance and cutting the guide hole and the appearance to form a rough blank, wherein when the rough blank is cut off, one end of the left guide hole is provided with a margin of a center hole, one end of the right boss is provided with a margin of a clamping compensation position, the guide hole and the appearance are processed at one time, the coaxiality is good, the rigidity of subsequent processing of the processing avoiding hole is good, and the cutter avoiding phenomenon is reduced;
straightening: straightening the turned blank material to ensure straightness;
milling: clamping the straightened blank material, drilling an eccentric center hole on one side of a guide hole of the blank material, milling an eccentric clamping position and a plane on the other side of the blank material, wherein two ends of the blank material are respectively provided with an eccentric part, a subsequent eccentric gear turning does not need a special tool, assembly errors cannot exist between the subsequent eccentric gear turning and the special tool, the plane which has the requirement on the relative position with the eccentric gear and the eccentric clamping position are processed together, and the relative position is determined when the eccentric gear is subsequently processed;
turning an eccentric gear: the numerical control lathe chuck is adopted to clamp the eccentric clamping position and the tailstock is used to support the eccentric center hole to turn the eccentric teeth, the eccentric position and the product are integrated, the rigidity is good, and the processing is stable;
deburring: deburring the eccentric teeth;
straightening: straightening the straightness;
turning a conical surface: turning off an eccentric center hole and turning a conical surface by a numerical control lathe, and then reversely clamping and turning off an eccentric clamping position;
deep hole drilling: drilling a clearance hole in the deep hole;
milling: milling sawteeth on one side of the guide hole and chamfering an orifice on the other side to obtain a molded drill guide;
deburring: deburring the formed drill guide;
cleaning: cleaning the drill guide after deburring to remove surface stains;
electropolishing: electropolishing the cleaned drill guide to remove oxide scale;
passivation: carrying out integral passivation treatment on the drill guide with the oxide skin removed;
marking: marking the passivated drill guide with a number by laser;
local passivation: locally passivating the marking digital area of the drill guide;
cleaning: and cleaning the drill bit guide after the marking digital area is locally passivated to remove the passivating liquid.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (8)
1. A processing method of a drill guide with eccentric teeth in knee joint surgery is characterized by comprising the following steps:
turning and processing the guide hole and the appearance and cutting off to form a rough blank;
straightening the turned blank material to ensure straightness;
clamping the straightened blank material, drilling an eccentric center hole on one side of a guide hole of the blank material, and milling an eccentric clamping position and a plane on the other side of the blank material;
clamping an eccentric clamping position by using a numerical control lathe chuck and propping an eccentric center hole to turn an eccentric tooth by using a tail frame;
deburring the eccentric teeth;
straightening the straightness;
turning off an eccentric center hole and turning a conical surface by a numerical control lathe, and then reversely clamping and turning off an eccentric clamping position;
drilling a clearance hole in the deep hole;
and milling saw teeth on one side of the workpiece with the guide hole, and chamfering the hole opening on the other side of the workpiece to obtain the formed drill guide.
2. The method for manufacturing an eccentric toothed drill guide for knee joint surgery according to claim 1, further comprising the steps of:
and deburring the formed drill guide.
3. The method for manufacturing an eccentric toothed drill guide for knee joint surgery according to claim 2, further comprising the steps of:
and cleaning the drill guide after deburring to remove surface stains.
4. The method for manufacturing an eccentric toothed drill guide for knee joint surgery according to claim 3, further comprising the steps of:
the cleaned drill guide was electropolished to remove scale.
5. The method for manufacturing an eccentric toothed drill guide for knee joint surgery according to claim 4, further comprising the steps of:
and carrying out integral passivation treatment on the drill guide after removing the oxide skin.
6. The method for manufacturing an eccentric toothed drill guide for knee joint surgery according to claim 5, further comprising the steps of:
and (5) carrying out laser marking on the passivated drill guide.
7. The method of manufacturing an eccentric toothed drill guide for knee surgery as set forth in claim 6, further comprising the steps of:
and locally passivating the marking digital area of the drill guide.
8. The method of manufacturing an eccentric toothed drill guide for knee surgery as set forth in claim 7, further comprising the steps of:
and cleaning the drill bit guide after the marking digital area is locally passivated to remove the passivating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801139.1A CN111975296B (en) | 2020-08-11 | 2020-08-11 | Machining method of drill guide with eccentric teeth in knee joint operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801139.1A CN111975296B (en) | 2020-08-11 | 2020-08-11 | Machining method of drill guide with eccentric teeth in knee joint operation |
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| CN111975296A CN111975296A (en) | 2020-11-24 |
| CN111975296B true CN111975296B (en) | 2022-03-18 |
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| CN202010801139.1A Active CN111975296B (en) | 2020-08-11 | 2020-08-11 | Machining method of drill guide with eccentric teeth in knee joint operation |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001042615A3 (en) * | 1999-12-10 | 2002-01-24 | Ingersoll Rand Co | Drill rod |
| CN104308480A (en) * | 2014-10-25 | 2015-01-28 | 陕西天财工程造价咨询有限公司 | Eccentric sleeve machining method |
| CN104400336A (en) * | 2014-10-25 | 2015-03-11 | 陕西天财工程造价咨询有限公司 | Eccentric shaft machining method |
| CN104434281A (en) * | 2014-12-27 | 2015-03-25 | 雷俊虎 | Bone tunnel cross pin positioning tool used in department of orthopaedics and application thereof |
| CN204797941U (en) * | 2015-06-05 | 2015-11-25 | 上海微创骨科医疗科技有限公司 | Medical operation guider |
| CN105537889A (en) * | 2016-02-18 | 2016-05-04 | 山东金辰机械股份有限公司 | Synchronous machining method of left and right eccentric gears |
| KR20190140764A (en) * | 2018-06-12 | 2019-12-20 | 박정원 | Method and device for processing the stator shaft which having different diameter |
-
2020
- 2020-08-11 CN CN202010801139.1A patent/CN111975296B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001042615A3 (en) * | 1999-12-10 | 2002-01-24 | Ingersoll Rand Co | Drill rod |
| CN104308480A (en) * | 2014-10-25 | 2015-01-28 | 陕西天财工程造价咨询有限公司 | Eccentric sleeve machining method |
| CN104400336A (en) * | 2014-10-25 | 2015-03-11 | 陕西天财工程造价咨询有限公司 | Eccentric shaft machining method |
| CN104434281A (en) * | 2014-12-27 | 2015-03-25 | 雷俊虎 | Bone tunnel cross pin positioning tool used in department of orthopaedics and application thereof |
| CN204797941U (en) * | 2015-06-05 | 2015-11-25 | 上海微创骨科医疗科技有限公司 | Medical operation guider |
| CN105537889A (en) * | 2016-02-18 | 2016-05-04 | 山东金辰机械股份有限公司 | Synchronous machining method of left and right eccentric gears |
| KR20190140764A (en) * | 2018-06-12 | 2019-12-20 | 박정원 | Method and device for processing the stator shaft which having different diameter |
Non-Patent Citations (1)
| Title |
|---|
| 空心导向钻头;杜小平;《骨与关节损伤》;19901231;第5卷(第4期);全文 * |
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