阅读说明：本技术 一种钛合金螺钉的加工控制方法和装置 (Processing control method and device for titanium alloy screw ) 是由 刘治辉 仉凤梧 郝枰 张成伟 蔡子嫣 于 2020-05-14 设计创作，主要内容包括：本申请公开了一种钛合金螺钉的加工控制方法和装置,该方法和装置具体为获取加工初始参数；基于加工初始参数依次对钛合金螺钉的螺纹的右侧、左侧和底部进行仿形螺纹加工。由于针对完整的螺纹不是采取一次加工成型,而是采用右侧、左侧和底部依次分段加工,刀具与工件的接触面积不会像传统加工方法那样越来越大,而是始终保持较小的接触面积,因此在切削过程中切削力不会增大,使工艺系统刚性一直保持较低水平,从而提高了钛合金螺钉的螺纹精度。(The application discloses a processing control method and a device of a titanium alloy screw, which particularly aim to obtain processing initial parameters; and (4) carrying out contour thread machining on the right side, the left side and the bottom of the thread of the titanium alloy screw in sequence based on the machining initial parameters. Because the complete thread is not formed by one-time machining, but the right side, the left side and the bottom are sequentially processed in a segmented mode, the contact area between the cutter and the workpiece is not larger and larger than that of the traditional machining method, but is always kept smaller, the cutting force is not increased in the cutting process, the rigidity of a process system is always kept at a lower level, and therefore the thread precision of the titanium alloy screw is improved.)

1. A processing control method of a titanium alloy screw is applied to a longitudinal cutting processing machine tool and is characterized by comprising the following steps:

acquiring initial processing parameters;

firstly, carrying out contour thread machining on the right side of the thread of the titanium alloy screw based on the machining initial parameters;

then carrying out copying thread machining on the left side of the thread based on the machining initial parameters;

and finally, carrying out profile thread machining on the bottom of the thread based on the machining initial parameters.

2. The machining control method according to claim 1, wherein the machining initial parameter includes:

the device comprises a longitudinal cutting machine tool, a tool to be machined, a distance between the tool and the major diameter of a thread of the titanium alloy screw to be machined, a distance between the tool and the base diameter of the titanium alloy screw to be machined, a left angle of a thread profile of the thread, a width of the base diameter of the thread, a width of a nose of the tool of the longitudinal cutting machine tool, a thread pitch of the thread, the base diameter of the thread, a right angle of the thread profile, a length of the thread and a cutting depth of each nose.

3. The machining control method according to claim 1, wherein the profiling thread machining of the right side of the thread of the titanium alloy screw based on the machining initial parameter includes the steps of:

acquiring right side processing parameters;

profiling the right side of the thread based on the initial machining parameters and the right side machining parameters.

4. The machining control method according to claim 3, wherein the right-side machining parameter includes a Z-feed amount per cutting of the right-side machining and a Z-feed amount of an overall cutting of the right-side machining.

5. The machining control method according to claim 1, wherein the profiling thread machining of the left side of the thread of the titanium alloy screw based on the machining initial parameter includes the steps of:

acquiring left side processing parameters;

profiling the left side of the thread based on the initial machining parameters and the left side machining parameters.

6. The machining control method according to claim 5, wherein the left-side machining parameters include a Z-feed amount per cutting of the left-side machining and a Z-feed amount of the total cutting of the left-side machining.

7. The machining control method according to claim 1, wherein the profiling thread machining of the bottom of the thread of the titanium alloy screw based on the machining initial parameter includes the steps of:

acquiring bottom processing parameters;

profiling the thread based on the initial machining parameters and the bottom machining parameters.

8. The process control method of claim 7, wherein the bottom processing parameters comprise:

z-feed of bottom machining.

9. The utility model provides a processing controlling means of titanium alloy screw, is applied to the rip cutting machine tool which characterized in that, processing controlling means includes:

the parameter acquisition module is used for acquiring initial processing parameters;

the first execution module is used for carrying out contour thread machining on the right side of the thread of the titanium alloy screw based on the machining initial parameters;

the second execution module is used for carrying out copying thread machining on the left side of the thread based on the machining initial parameters;

and the third execution module is used for carrying out profile thread machining on the bottom of the thread based on the machining initial parameters.

10. A processing control device of titanium alloy screw is applied to a longitudinal cutting processing machine tool, and is characterized in that the processing control device comprises at least one processor and a memory in signal connection with the processor, wherein:

the memory is used for storing macro programs;

the processor is adapted to execute the macro program to cause the machining control apparatus to execute the machining control method according to any one of claims 1 to 8.

Technical Field

The application relates to the technical field of medical instruments, in particular to a processing control method and device for a titanium alloy screw.

Background

Many medical appliance products need titanium alloy screws for fastening, and particularly, high-quality titanium alloy screws are needed for fastening internal implants such as pacemakers and orthopedic steel plates. The titanium alloy material belongs to a difficult-to-machine material, and particularly for titanium alloy screws with small size and long length, the titanium alloy screws are small in threads, small in diameter and long in screwing length, so that the rigidity of a process system is poor when the titanium alloy screws are machined by a common machining method, the thread accuracy of the obtained titanium alloy screws is poor, and the quality of implants in a body is poor.

Disclosure of Invention

In view of this, the present application provides a method and an apparatus for controlling the machining of a titanium alloy screw, which are used to improve the thread precision of the titanium alloy screw.

In order to achieve the above object, the following solutions are proposed:

a processing control method of a titanium alloy screw is applied to a longitudinal cutting processing machine tool and comprises the following steps:

acquiring initial processing parameters;

firstly, carrying out contour thread machining on the right side of the thread of the titanium alloy screw based on the machining initial parameters;

then carrying out copying thread machining on the left side of the thread based on the machining initial parameters;

and finally, carrying out profile thread machining on the bottom of the thread based on the machining initial parameters.

Optionally, the processing initial parameters include:

the device comprises a longitudinal cutting machine tool, a tool to be machined, a distance between the tool and the major diameter of a thread of the titanium alloy screw to be machined, a distance between the tool and the base diameter of the titanium alloy screw to be machined, a left angle of a thread profile of the thread, a width of the base diameter of the thread, a width of a nose of the tool of the longitudinal cutting machine tool, a thread pitch of the thread, the base diameter of the thread, a right angle of the thread profile, a length of the thread and a cutting depth of each nose.

Optionally, the profiling thread machining is performed on the right side of the thread of the titanium alloy screw based on the machining initial parameters, and the method includes the following steps:

acquiring right side processing parameters;

profiling the right side of the thread based on the initial machining parameters and the right side machining parameters.

Optionally, the right-side processing parameters include a Z-feed amount of each cut of the right-side processing and a Z-feed amount of the total cut of the right-side processing.

Optionally, the profiling thread machining is performed on the left side of the thread of the titanium alloy screw based on the machining initial parameters, and the method includes the following steps:

acquiring left side processing parameters;

profiling the left side of the thread based on the initial machining parameters and the left side machining parameters.

Optionally, the left side processing parameters include a Z-feed amount of each cut of the left side processing and a Z-feed amount of the total cut of the left side processing.

Optionally, the profiling thread machining is performed on the bottom of the thread of the titanium alloy screw based on the machining initial parameters, and the profiling thread machining method includes the following steps:

acquiring bottom processing parameters;

profiling the thread based on the initial machining parameters and the bottom machining parameters.

Optionally, the bottom processing parameters include:

z-feed of bottom machining.

The utility model provides a processing controlling means of titanium alloy screw, is applied to the rip cutting machine tool, processing controlling means includes:

the parameter acquisition module is used for acquiring initial processing parameters;

the first execution module is used for carrying out contour thread machining on the right side of the thread of the titanium alloy screw based on the machining initial parameters;

the second execution module is used for carrying out copying thread machining on the left side of the thread based on the machining initial parameters;

and the third execution module is used for carrying out profile thread machining on the bottom of the thread based on the machining initial parameters.

A processing control device of a titanium alloy screw is applied to a longitudinal cutting processing machine tool and comprises at least one processor and a memory in signal connection with the processor, wherein:

the memory is used for storing macro programs;

the processor is adapted to execute the macro program to cause the machining control apparatus to execute the machining control method according to any one of claims 1 to 8.

According to the technical scheme, the application discloses a method and a device for processing and controlling a titanium alloy screw, and the method and the device are used for acquiring processing initial parameters; and (4) carrying out contour thread machining on the right side, the left side and the bottom of the thread of the titanium alloy screw in sequence based on the machining initial parameters. Because the complete thread is not formed by one-time machining, but the right side, the left side and the bottom are sequentially processed in a segmented mode, the contact area between the cutter and the workpiece is not larger and larger than that of the traditional machining method, but is always kept smaller, the cutting force is not increased in the cutting process, the rigidity of a process system is always kept at a lower level, and therefore the thread precision of the titanium alloy screw is improved.

In the application, the machining control method is programmed by adopting a macro program, and in the implementation process, the corresponding machine tool can be controlled to machine the titanium alloy screws with different sizes by adjusting part of parameters.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart of a method for controlling machining of a titanium alloy screw according to an embodiment of the present disclosure;

fig. 2 is a schematic machining diagram of a slitting machine according to an embodiment of the present application;

FIG. 3 is a schematic view of a tool of a slitting machine according to an embodiment of the present application;

FIG. 4 is a schematic view of a conventional cutting tool;

FIG. 5 is a schematic view of a titanium alloy screw according to an embodiment of the present application;

FIG. 6 is an enlarged partial view of a titanium alloy screw according to an embodiment of the present application;

FIG. 7 is a schematic illustration of a right-side profile thread forming operation according to an embodiment of the present application;

FIG. 8 is a schematic view of a left-hand profiled thread forming operation in accordance with an embodiment of the present application;

FIG. 9 is a schematic view of a bottom profiling thread machining of an embodiment of the present application;

fig. 10 is a block diagram of a processing control apparatus for a titanium alloy screw according to an embodiment of the present application;

fig. 11 is a block diagram of another titanium alloy screw machining control device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.