CN212145645U

CN212145645U - Tool for preventing operation errors in numerical control machining

Info

Publication number: CN212145645U
Application number: CN202020642052.XU
Authority: CN
Inventors: 段永军; 刘国平
Original assignee: Xi'an Huahang Machinery Co ltd
Current assignee: Xi'an Huahang Machinery Co ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-12-15
Anticipated expiration: 2030-04-25

Abstract

The utility model discloses a be used for numerical control processing to prevent mistake in operation frock, including the technology boss, standard check surface has been seted up to technology boss one corner, the standing groove has been seted up to the inboard of standard check surface, the part has been placed to the inner chamber of standing groove, standard check surface is seted up to equilateral inclined plane triangle, triangle-shaped's length of side 30-50mm, the benchmark hole has been seted up to the one corner inboard that standard check surface was seted up to the technology boss, the benchmark hole is initial point to there are X axle, Y axle and Z axle. The utility model can accurately, quickly and early prevent and find the use problem of the cutter through the standard check surface, and can realize the verification of the geometric parameters of the cutter, the alignment of the workpiece and the coordinate system by simple program calling, thereby avoiding the economic loss caused by misoperation in the numerical control processing; the standard check surface is designed according to a three-dimensional space, the operation is completed in a line cutting mode, and the using condition of the cutter is accurately and early known.

Description

Tool for preventing operation errors in numerical control machining

Technical Field

The utility model relates to a numerical control processing technology field specifically is a be used for numerical control processing to prevent mistake in operation frock.

Background

With the development of numerical control processing technology and the improvement of user requirements, the standard of product quality is higher and higher. Meanwhile, due to the fact that the operating errors of operators cause the products to be out of tolerance and scrapped, enterprises suffer huge economic losses, the operators cannot accurately and early prevent the cutter from causing the conditions, and errors caused by human negligence, forgetfulness and the like cannot be solved only by a traditional error prevention method combining training, punishment, warning and education. Aiming at the reason that the manual error of an aviation product production line is high, on the basis of researching the error-proof technical principle, the tool for preventing the operation error in numerical control machining is provided, the error-proof technology is set as a core, the purpose of reducing the manual operation error of a part production line is achieved, and the yield of products is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for numerical control processing to prevent operation mistake frock to when solving the numerical control processing part that proposes in the above-mentioned background art, operating personnel causes the part out of tolerance, scrap because of misoperation easily, and the problem that the prevention cutter that operating personnel can not be accurate, early used.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a be used for numerical control processing to prevent operation mistake frock, includes the technology boss, standard check surface has been seted up to technology boss one corner, the standing groove has been seted up to the inboard of standard check surface, the part has been placed to the inner chamber of standing groove.

Preferably, the standard calibration surface is provided with an equilateral inclined triangle, the side length of the triangle is 30-50mm, and a reference hole is formed in the inner side of one corner of the process boss provided with the standard calibration surface.

Preferably, the reference hole is an initial point and has an X-axis, a Y-axis, and a Z-axis.

Preferably, the inner wall of the placing groove is provided with a corner groove clamped with the corner of the part.

Preferably, the standard calibration surface is a spatial equilateral triangle inclined surface forming an included angle of 45 degrees with the right-angle side and the bottom plane of the process boss.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can accurately, quickly and early prevent and find the use problem of the cutter through the standard check surface, and can realize the verification of the geometric parameters, the workpiece alignment and the coordinate system of the cutter by simple program calling, thereby avoiding the economic loss caused by misoperation in the numerical control processing; the standard check surface is designed according to a three-dimensional space, so that the cutter executes a simulation check program on the standard check surface, the path of the program cutter is attached to the check surface, the operation is completed in a cutting mode, the use condition of the cutter is accurately and early known, the product quality of parts is greatly improved through an error-proof program of the standard check surface, the program operation is simple, safe, reliable and strong in practicability, and the requirement of the current numerical control processing development is met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the structure at the position B of the present invention.

In the figure: 1. a process boss; 2. a standard check surface; 3. a placement groove; 31. a corner groove; 4. a part; 5. a reference hole.

Detailed Description

In order to solve the numerical control processing part time, operating personnel causes the part out of tolerance, scrap because of misoperation easily, and operating personnel can not be accurate, the problem that early prevention cutter used, the embodiment of the utility model provides a be used for numerical control processing to prevent the operation mistake frock. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the embodiment provides a tool for preventing operation errors in numerical control machining, which comprises a process boss 1, wherein a standard check surface 2 is arranged at one corner of the process boss 1, a placing groove 3 is arranged on the inner side of the standard check surface 2, a part 4 is placed in an inner cavity of the placing groove 3, after numerical control preparation work, namely clamping and alignment, a tool verification program is executed before the part 4 is machined, the standard check surface 2 is subjected to simulated milling, whether the selected tool specification, a workpiece coordinate system, alignment and clamping are correct and reasonable is effectively and visually checked through the contact condition of a tool tip and the standard check surface 2, abnormal phenomena in the machining of the part 4 are prevented as early as possible, the core is the reason for identifying and controlling defects, the production line can be ensured to continuously produce qualified products through prevention and detection, and the operation sense organ dependence of an operator can be eliminated by the method, the operator can obviously find errors during operation or make up errors in time once the operation is wrong, and can prevent the product from generating errors in the manufacturing process and improve the one-time qualification rate of the product.

The standard check surface 2 is provided with an equilateral inclined plane triangle, the side length of the triangle is 30-50mm, a reference hole 5 is formed in the inner side of one corner of the process boss 1, which is provided with the standard check surface 2, the reference hole 5 is an initial point and is provided with an X axis, a Y axis and a Z axis, the standard check surface 2 is a spatial equilateral triangle inclined plane which forms an included angle of 45 degrees with the right-angle side and the bottom plane of the process boss 1, an error-proofing program takes a phi 20R2-L60 cutter as an example, the error-proofing program can be suitable for other different cutter specifications according to the processing requirements of an actual part 4, a coordinate system is established on the center of the reference hole 5, a programming software contour area milling module is used, the triangular inclined plane is designed by adopting a layered cutting path, a finish machining milling method is adopted, the allowance of the inclined plane is kept to be 0.03 mm.

Numerical control cutting parameters in the process of simulating the triangular inclined plane: the spindle is rotated at 3000 rpm and fed at 800 mm/min. The method can also be used for directly measuring the high-precision part 4 during processing, and comprises the following steps: the cutter is moved to the inclined plane, the machine tool spindle is closed to stop the machine tool for detection, the clearance value between the cutter and the triangular inclined plane is rechecked by manually rotating the cutter handle through a feeler gauge, whether the quality requirement of the part 4 is met or not is judged, and the abrasion condition of the cutting edge of the cutter is timely checked.

In order to enable an operator to find out the deviation of a procedure and a cutter in a working procedure before the cutter cuts into the part 4, a standard checking surface 2 is arranged on the allowance of a process boss 1 of the part 4 by adopting a mistake-proof action principle. The three-dimensional checking tool is designed according to three-dimensional space, a tool executes a simulation checking program on a standard checking surface 2, the path of the tool is attached to the checking surface, and the operation is finished by cutting in a line mode. If the cutter successfully passes through the error-proof standard check surface 2, the coordinate value is correct; if cutting interference or other phenomena occur, then the operator can immediately stop the machine to judge, check whether the specifications of the tool, namely the geometric dimensions, such as length, diameter, tool nose R, angle, and the like, are taken by mistake, find the initial point of the value of the coordinate coefficient of the workpiece, and modify the error commands of the X-axis, Y-axis and Z-axis feed programs.

Production practices prove that the error-proofing program is used, the cutter is in contact with 3 directions of 2X-axis, Y-axis and Z-axis coordinates of a standard check surface, the distances are guaranteed to be consistent, closed detection is formed in the process, 4 coordinate values of the part are truly reflected, the effects of prevention, error proofing and detection are achieved, the possibility of human errors is avoided, potential hazards of numerical control machining quality are eliminated, and the product quality of the part 4 is well guaranteed.

The inner wall of standing groove 3 is provided with the corner groove 31 with 4 corner joints of part, can assist the better fixed of part 4 through corner groove 31 for prevent that part 4 from rocking in standing groove 3, reduce the error of part 4 processing.

The mistake-proofing design method comprises the following steps:

all tool specifications used for machining the numerical control part 4 are classified, then a first program which is used firstly for numerical control machining of the same tool specification is extracted, and a section of inspection program is added before the first program. Namely: before the material of the part 4 is cut, firstly, an inspection program is operated, if an incorrect tool or an incorrect coordinate value is used, the inspection program can cause the tool to generate interference and abnormal phenomena with a standard check surface, an operator can easily perceive through an observation window of a machining center, the program operation is immediately stopped, and a tool path driven by the inspection program becomes the key of error prevention.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and their specific meanings in the present application will be understood by those skilled in the art according to the specific situation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for numerical control processing to prevent operation mistake frock, includes technology boss (1), its characterized in that: the technical scheme is that a standard checking surface (2) is arranged at one corner of the technical boss (1), a placing groove (3) is arranged on the inner side of the standard checking surface (2), and a part (4) is placed in an inner cavity of the placing groove (3).

2. The tool for preventing the operation error in the numerical control machining according to claim 1, is characterized in that: the standard checking surface (2) is provided with an equilateral inclined plane triangle, the side length of the triangle is 30-50mm, and the inner side of one corner of the process boss (1) provided with the standard checking surface (2) is provided with a reference hole (5).

3. The tool for preventing the operation error in the numerical control machining according to claim 2, is characterized in that: the reference hole (5) is an initial point and has an X axis, a Y axis and a Z axis.

4. The tool for preventing the operation error in the numerical control machining according to claim 1, is characterized in that: the inner wall of the placing groove (3) is provided with a corner groove (31) which is clamped with the corner of the part (4).

5. The tool for preventing the operation error in the numerical control machining according to claim 2, is characterized in that: the standard check surface (2) is a space equilateral triangle inclined surface which forms an included angle of 45 degrees with the right-angle side and the bottom plane of the process boss (1).