阅读说明：本技术 一种异形零件空间尺寸的检测系统及方法 (System and method for detecting space size of special-shaped part ) 是由 陈师平 刘宏刚 于 2019-11-05 设计创作，主要内容包括：本发明公开了一种异形零件空间尺寸的检测系统及方法,包括异形零件、基准工作平台、基座、芯轴、垫块和尺寸检测组件,异形零件包括异形零件板面,基准工作平台顶部左侧设有基座,尺寸检测组件包括支撑滑动座和百分表,支撑滑动座滑动安装于基准工作平台顶部右侧,垫块设于基准工作平台顶部；位于两个轴套部之间的芯轴配合定位安装于基座的半圆形槽中,异形零件板面的板面边缘接触放置于垫块顶部,百分表的测针端部与异形零件板面表面对应接触。本发明通过基座、芯轴、垫块、基准工作平台标准化地定位异形零件,然后通过移动支撑滑动座并带动百分表移动实现对异形零件的异形零件板面的外表面空间尺寸检测。(The invention discloses a system and a method for detecting the space size of a special-shaped part, and the system and the method comprise the special-shaped part, a reference working platform, a base, a mandrel, a cushion block and a size detection assembly, wherein the special-shaped part comprises a special-shaped part plate surface, the left side of the top of the reference working platform is provided with the base, the size detection assembly comprises a supporting sliding seat and a dial indicator, the supporting sliding seat is slidably arranged on the right side of the top of the reference working platform, and the cushion block is arranged on the top of; the mandrel between the two shaft sleeve parts is matched, positioned and installed in the semicircular groove of the base, the edge of the plate surface of the special-shaped part plate is placed at the top of the cushion block in a contact mode, and the end part of the measuring pin of the dial indicator is in corresponding contact with the surface of the plate surface of the special-shaped part. According to the invention, the special-shaped part is positioned in a standardized manner through the base, the mandrel, the cushion block and the reference working platform, and then the detection of the space size of the outer surface of the special-shaped part plate surface of the special-shaped part is realized by moving the support sliding seat and driving the dial indicator to move.)

1. The utility model provides a special-shaped part space dimension's detecting system, includes special-shaped part, special-shaped part includes special-shaped part face (1), both ends position is equipped with axle sleeve portion (2) respectively about special-shaped part face (1) first side, axle sleeve portion (2) middle part is run through to open has shaft hole (21), special-shaped part face (1) second side edge is face edge (11), its characterized in that: the device is characterized by further comprising a reference working platform (6), a base (3), a mandrel (4), a cushion block (5) and a size detection assembly, wherein the base (3) is arranged on the left side of the top of the reference working platform (6), a semicircular groove (31) for positioning the mandrel (4) is formed in the top of the base (3), the size detection assembly comprises a supporting sliding seat and a dial indicator (10) installed on the supporting sliding seat, the supporting sliding seat is installed on the right side of the top of the reference working platform (6) in a sliding mode, and the cushion block (5) is arranged on the top of the reference working platform (6) and located between the base (3) and the supporting sliding seat; two axle sleeve portions (2) of special-shaped part are passed in the cooperation of dabber (4), and dabber (4) cooperation location that is located between two axle sleeve portions (2) is installed in semicircle groove (31) of base (3), the face edge (11) contact of special-shaped part face (1) is placed in cushion (5) top, percentage table (10) have probe (101), probe (101) tip and the corresponding contact in special-shaped part face (1) surface of percentage table (10).

2. A system for detecting the dimensional space of a profiled element as claimed in claim 1, wherein: the support sliding seat comprises a sliding gauge stand (7), a vertical support rod (8) and an adjustable cross rod (9), the sliding gauge stand (7) is slidably mounted on the right side of the top of the reference working platform (6), the vertical support rod (8) is vertically fixed at the top of the sliding gauge stand (7), one end of the adjustable cross rod (9) is connected to the top end of the vertical support rod (8) through a locking adjusting knob A, and the other end of the adjustable cross rod (9) is connected with a dial indicator (10).

3. A system for detecting the dimensional space of a profiled element as claimed in claim 2, wherein: the device also comprises a sliding driving system, wherein the sliding driving system is used for driving a sliding meter seat (7) supporting the sliding seat to horizontally slide on the top of the reference working platform (6).

4. A system for detecting the dimensional size of a profiled element as claimed in claim 3, wherein: the top of the reference working platform (6) is provided with a sliding groove corresponding to the sliding gauge stand (7), and the bottom of the sliding gauge stand (7) is in limited sliding installation in the sliding groove of the reference working platform (6).

5. A system for detecting the dimensional space of a profiled element as claimed in claim 2, wherein: the other end of the adjustable cross rod (9) is connected with a dial indicator (10) through a locking adjusting knob B.

6. A system for detecting the spatial dimension of a profiled element as claimed in claim 3 or 4, wherein: the sliding driving system is a cylinder.

7. A system for detecting the dimensional space of a profiled element as claimed in claim 1, wherein: the base (3) is arranged at the top of the reference working platform (6) in a left-right sliding mode.

8. A method for detecting the space size of a special-shaped part is characterized by comprising the following steps: the method comprises the following steps:

A. determining the detection position of a special-shaped part plate surface (1) of the special-shaped part, wherein the detection position is a straight line from a first vertex (12) to a second vertex (13) of the special-shaped part plate surface (1); detecting the external straightness of the mandrel (4) to ensure that the external straightness of the mandrel (4) is less than 0.01 mm;

B. the mandrel (4) is matched and penetrates through two shaft sleeve parts (2) of the special-shaped part, the mandrel (4) positioned between the shaft sleeve parts (2) is matched, positioned and installed in a semicircular groove (31) of a base (3), then the plate surface edge (11) of the plate surface (1) of the special-shaped part is placed at the top of a cushion block (5) in a contact manner, the inclination angle of the adjustable cross rod (9) is adjusted through a locking adjusting knob A until the end part of a measuring pin (101) of a dial indicator (10) is correspondingly contacted with the surface of the plate surface (1) of the special-shaped part, and the inclination angle position of the adjustable cross rod (9) is locked through the locking adjusting knob A;

C. moving the sliding meter seat (7), enabling the end part of a measuring pin (101) of the dial indicator (10) to slide to a first vertex (12), and zeroing the reading of the dial indicator (10) at the position of a detection point of the first vertex (12);

D. and moving the sliding gauge seat (7) to enable the end part of the measuring pin (101) of the dial indicator (10) to slide from the first vertex (12) to the second vertex (13), and recording the reading of the dial indicator (10) in the sliding process to obtain the spatial parallelism of the plate surface (1) of the special-shaped part between the first vertex (12) and the second vertex (13).

Technical Field

The invention relates to the technical field of special-shaped part detection, in particular to a system and a method for detecting the space size of a special-shaped part.

Background

In the machining industry, with the continuous development of aviation and aerospace industries, the requirements on the precision of parts and the complexity of machining are higher and higher, the machining of a numerical control machine tool is good, the required shape can be machined only by a three-dimensional mathematical model, but special-shaped parts which are difficult to find out a detection reference, in particular to parts (space size: the size without direct measurement reference) related to space size, such as a tail seat of an airplane wing, three-coordinate detection equipment also has great defects, and 1) the investment is large and the efficiency is low; 2) the detection reference is not easy to determine, and once the reference is inaccurate, the detected data are also inaccurate. The lack of processing and detecting means of the space size of the special-shaped part becomes the bottleneck of the space size detection of the special-shaped part.

As shown in fig. 1, the tail seat of the aircraft wing includes a special-shaped part panel 1, two end positions of the first side and the right side of the special-shaped part panel 1 are respectively provided with a shaft sleeve portion 2, the middle of the shaft sleeve portion 2 is penetrated and opened with a shaft hole 21, the second side edge of the special-shaped part panel 1 is a panel edge 11, and an extrados bus of the special-shaped part panel 1 of the aircraft wing tail seat needs to be parallel to the space technical requirement of a reference E (namely, the extrados bus of the special-shaped part panel 1 and the flatness of the extrados have higher size requirement, and whether the processed product is qualified or not needs to be checked. In a conventional situation, because the part in the shape has no detection reference, the common measuring tool cannot measure at all and has no need to go down; because the tail seat of the airplane wing is in a special shape, the reference is not easy to determine during detection, and the detection data is inaccurate and unstable.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a system and a method for detecting the space size of a special-shaped part.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a special-shaped part space dimension's detecting system, includes special-shaped part, benchmark work platform, base, dabber, cushion and size detection subassembly, special-shaped part includes the special-shaped part face, the special-shaped part face is the arc face, both ends position is equipped with axle sleeve portion respectively about the first side of special-shaped part face, axle sleeve portion middle part runs through to open there is the shaft hole, special-shaped part face second side reason is the face edge. The size detection assembly comprises a supporting sliding seat and a dial indicator arranged on the supporting sliding seat, the supporting sliding seat is slidably arranged on the right side of the top of the reference working platform, and the cushion block is arranged on the top of the reference working platform and is positioned between the base and the supporting sliding seat; the core shaft is matched with and penetrates through two shaft sleeve parts of the special-shaped part, the core shaft between the two shaft sleeve parts is matched with and positioned in a semicircular groove of the base, the edge of the plate surface of the special-shaped part plate is placed at the top of the cushion block in a contact mode, the dial indicator is provided with a measuring pin, and the end portion of the measuring pin of the dial indicator is in corresponding contact with the surface of the plate surface of the special-shaped part.

In order to better realize the invention, the supporting sliding seat comprises a sliding gauge stand, a vertical supporting rod and an adjustable cross rod, the sliding gauge stand is slidably arranged on the right side of the top of the reference working platform, the vertical supporting rod is vertically fixed on the top of the sliding gauge stand, one end of the adjustable cross rod is connected to the top end of the vertical supporting rod through a locking adjusting knob A, and the other end of the adjustable cross rod is connected with a dial indicator.

Preferably, the invention further comprises a sliding driving system, wherein the sliding driving system is used for driving the sliding meter seat supporting the sliding seat to horizontally slide on the top of the reference working platform.

Preferably, the top of the reference working platform is provided with a sliding groove corresponding to the sliding gauge stand, and the bottom of the sliding gauge stand is in limited sliding installation in the sliding groove of the reference working platform.

Preferably, the other end of the adjustable cross rod is connected with the dial indicator through a locking adjusting knob B.

Preferably, the sliding driving system is a cylinder.

Preferably, the base is installed on the top of the reference working platform in a left-right sliding mode.

A method for detecting the space size of a special-shaped part comprises the following steps:

A. determining the detection position of the plate surface of the special-shaped part, wherein the detection position is a straight line from a first vertex to a second vertex of the plate surface of the special-shaped part; detecting the external straightness of the mandrel, and ensuring that the external straightness of the mandrel is less than 0.01mm (acquiring left, middle and right three-point data on the mandrel by using a dial indicator, and confirming that the external straightness or levelness of the mandrel is less than 0.01 mm); detecting a reference horizontal plane of the reference working platform, and detecting the horizontal straightness of a semicircular groove of a base arranged on the left side of the reference working platform;

B. the core shaft is matched and penetrates through two shaft sleeve parts of the special-shaped part, the core shaft positioned between the shaft sleeve parts is matched, positioned and installed in a semicircular groove of the base, then the edge of the plate surface of the special-shaped part is placed at the top of the cushion block in a contact manner, the inclination angle of the adjustable cross rod is adjusted through the locking adjusting knob A until the end part of the measuring pin of the dial indicator is correspondingly contacted with the surface of the plate surface of the special-shaped part, and the inclination angle position of the adjustable cross rod is locked through the locking adjusting knob A;

C. moving the sliding meter seat to enable the end part of the measuring pin of the dial indicator to slide to a first vertex, and zeroing the reading of the dial indicator at the position of a detection point of the first vertex;

D. and moving the sliding meter seat to enable the end part of the measuring pin of the dial indicator to slide from the first vertex to the second vertex, and recording the reading of the dial indicator in the sliding process to obtain the space parallelism of the plate surface of the special-shaped part between the first vertex and the second vertex.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the invention has the advantages of low cost investment, simple and easily mastered detection work, higher efficiency compared with other detection forms, and easier popularization and promotion.

(2) According to the invention, the special-shaped part is positioned in a standardized manner through the base, the mandrel, the cushion block and the reference working platform, and then the detection of the space size of the outer surface of the special-shaped part plate surface of the special-shaped part is realized by moving the support sliding seat and driving the dial indicator to move, so that the special-shaped part detection device has the advantages of simple structure, convenience in operation and no need of occupying other detection resources.

(3) The dial indicator can adopt a digital display dial indicator, then the dial indicator is connected with a computer through a lead, a statistical system is arranged in the computer, and the real-time reading of the dial indicator is recorded through the statistical system and is corrected and judged according to the standard space parallelism data of the special-shaped part.

Drawings

FIG. 1 is a side view schematic diagram of the special-shaped part of the present invention;

FIG. 2 is a schematic structural diagram of a special-shaped part according to the invention in a top view direction;

FIG. 3 is a schematic view of the base, mandrel, and spacer assembly of the present invention;

FIG. 4 is a schematic side view of the inspection apparatus of the present invention;

fig. 5 is a schematic structural view in a top view of fig. 4.

Wherein, the names corresponding to the reference numbers in the drawings are:

the method comprises the following steps of 1-a special-shaped part plate surface, 2-a shaft sleeve portion, 21-a shaft hole, 3-a base, 31-a semicircular groove, 4-a mandrel, 5-a cushion block, 6-a reference working platform, 7-a sliding gauge seat, 8-a vertical supporting rod, 9-an adjustable cross rod, 10-a dial indicator, 101-a measuring pin, 11-a plate surface edge, 12-a first vertex, 13-a second vertex and 14-a measuring pin route line.

Detailed Description

The present invention will be described in further detail with reference to the following examples: