CN-121977441-A - Aviation barrel clamping detection equipment

CN121977441ACN 121977441 ACN121977441 ACN 121977441ACN-121977441-A

Abstract

The invention discloses aviation barrel clamping detection equipment which comprises a base seat, self-adaptive supporting units, axial positioning units and integrated detection units, wherein the self-adaptive supporting units are symmetrically and fixedly arranged on the upper surface of the base seat in a left-right two-group mode, the axial positioning units are fixedly arranged at one end of the upper surface of the base seat, the integrated detection units are arranged above the base seat, each self-adaptive supporting unit comprises at least four independent units which are arranged along the length direction of the base seat, each independent unit comprises a contact end, a two-dimensional swinging mechanism, a six-dimensional force sensor and a radial sliding table, the contact ends are sequentially arranged from top to bottom, the lower surfaces of the contact ends are fixedly connected with the upper surface of the two-dimensional swinging mechanism, and the active control and the passive adaptation of the two-dimensional swinging are combined through the six-dimensional force sensor, so that the supporting force is uniform and the direction is pure and radial, barrel deformation caused by traditional rigid clamping is fundamentally avoided, workpieces are protected, and a premise is provided for real measurement.

Inventors

WANG FENG
Lei Zehang
YAO SHIGANG

Assignees

四川航空工业川西机器有限责任公司

Dates

Publication Date: 20260505
Application Date: 20251226

Claims (10)

1. Aviation barrel clamping check out test set, its characterized in that includes: A base; the self-adaptive supporting units are symmetrically and fixedly arranged on the upper surface of the foundation base in a left group and a right group; The axial positioning unit is fixedly arranged at one end of the upper surface of the foundation base; the integrated detection unit is arranged above the foundation base; wherein each group of the self-adaptive support units comprises at least four independent units which are arranged along the length direction of the foundation base; Each independent unit comprises a contact end, a two-dimensional swing mechanism, a six-dimensional force sensor and a radial sliding table which are sequentially arranged from top to bottom, wherein the lower surface of the contact end is fixedly connected with the upper surface of the two-dimensional swing mechanism, the lower surface of the two-dimensional swing mechanism is fixedly connected with the upper surface of the six-dimensional force sensor, the lower surface of the six-dimensional force sensor is fixedly connected with the upper surface of a sliding block of the radial sliding table, the lower surface of a base of the radial sliding table is fixedly connected with the upper surface of a base, and the working surfaces of the left and right groups of contact ends are oppositely arranged.
2. The aviation barrel clamping detection device of claim 1, wherein the contact end is made of a nonmetallic material, and a working surface facing the barrel is a V-shaped groove or a large-radius arc surface.
3. The aviation barrel clamping detection device according to claim 1, wherein the two-dimensional swinging mechanism comprises a U-shaped base, a cross shaft and a U-shaped swinging frame, the upper surface of the U-shaped swinging frame is fixedly connected with the lower surface of the contact end, the lower surface of the U-shaped base is fixedly connected with the upper surface of the six-dimensional force sensor, the cross shaft is provided with a first journal and a second journal which are mutually perpendicular, two ends of the first journal are rotatably connected with two side plates of the U-shaped base through bearings, and two ends of the second journal are rotatably connected with two side plates of the U-shaped swinging frame through bearings.
4. The aviation barrel clamping detection device according to claim 3, wherein the radial sliding table is a precise linear module, and the moving direction of the sliding block is horizontally arranged and perpendicular to the axis direction of the aviation barrel.
5. The aviation barrel clamping detection device according to claim 1, wherein the axial positioning unit comprises a mounting support, a transverse adjustment sliding table and an end cover plate, the lower surface of the mounting support is fixedly connected with the upper surface of the base, the base of the transverse adjustment sliding table is fixedly connected with the mounting support, the back surface of the end cover plate is fixedly connected with the front surface of a sliding block of the transverse adjustment sliding table, and a plurality of positioning pins which can stretch along the axis direction of the barrel are arranged on the front surface of the end cover plate.
6. The aviation barrel clamping detection device according to claim 1, wherein the integrated detection unit comprises an upright post, an annular track, a moving platform, a vertical lifting sliding table, a sensor mounting plate and a measuring sensor, wherein the lower ends of the two upright posts are fixedly connected with the upper surface of the foundation base, are respectively positioned on the outer sides of the left and right groups of self-adaptive support units, the two ends of the annular track are respectively fixedly connected with the upper ends of the two upright posts, the moving platform is in sliding connection with the annular track, the back surface of the base of the vertical lifting sliding table is fixedly connected with the front surface of the moving platform, the back surface of the sensor mounting plate is fixedly connected with the front surface of the sliding block of the vertical lifting sliding table, and the measuring sensor is fixedly mounted on the front surface of the sensor mounting plate.
7. The aviation barrel clamping detection device of claim 6, wherein the measuring sensor comprises a laser displacement sensor and a vision camera.
8. A clamping and detecting method of the aviation barrel clamping and detecting device according to any one of 1-7 is characterized by comprising the following steps that S1, an aviation barrel is hoisted between a left group of self-adaptive supporting units and a right group of self-adaptive supporting units; s2, driving a positioning pin of the axial positioning unit to extend until the positioning pin contacts the end surface of the cylinder body, and finishing axial positioning; s3, driving the sliding blocks of all the radial sliding tables to synchronously move towards the cylinder body direction, and pushing the contact end to contact the surface of the cylinder body; s4, based on real-time feedback of the six-dimensional force sensor, performing independent closed-loop force control on each radial sliding table until the radial force of each contact point reaches a set value and the lateral force and moment tend to be zero, and in the process, the two-dimensional swing mechanism passively adapts to the shape of the surface of the cylinder; S5, controlling a moving platform of the integrated detection unit to move along the annular track, and simultaneously controlling a sliding block of the vertical lifting sliding table to lift so as to drive the measuring sensor to scan and measure the surface of the cylinder; And S6, processing the measurement data to generate a form and position tolerance report of the cylinder.
9. The method for clamping and detecting an aviation barrel clamping and detecting device according to claim 8, wherein after step S6, further comprises: s7, calculating shape deviation according to the shape and position tolerance report; and S8, generating an adjustment instruction based on the shape deviation, and driving the designated radial sliding table to conduct position fine adjustment so as to actively correct the shape of the cylinder.
10. The method for clamping and detecting the aviation barrel clamping detection device according to claim 9, wherein in the step S5, the movement of the moving platform is linked with the lifting movement of the vertical lifting sliding table, so that the scanning path of the measuring sensor is a spiral line covering the area of the barrel to be detected.

Description

Aviation barrel clamping detection equipment Technical Field The invention relates to the technical field of aerospace manufacturing and precise measurement, in particular to aviation barrel clamping detection equipment. Background The large thin-wall aviation cylinder body, such as rocket fuel storage tank section and aircraft fuselage section, has the characteristics of large size, thin wall, weak rigidity and easy deformation. In the manufacturing and assembly process, two major core difficulties are faced: firstly, the traditional clamping mode adopts a rigid clamp or a multi-point rigid support, so that the assembly stress or clamping deformation is easily generated in the cylinder due to over-positioning or uneven distribution of clamping force, and the deformation can directly influence the subsequent processing precision or mask the real shape error of the workpiece. Secondly, the geometric accuracy detection generally needs to hoist the cylinder from the tool to off-line detection equipment such as a three-coordinate measuring machine. This process is inefficient and handling may introduce secondary deformation or collision risks. If the manual handheld measuring equipment is adopted to detect on a station, the problems of complex operation, long period, dependence on personnel skills in precision, discrete data and the like exist. . Disclosure of Invention The invention aims to provide aviation barrel clamping detection equipment so as to solve the problems in the prior art. The technical aim of the invention is achieved by the following technical scheme that the aviation barrel clamping detection device comprises a base seat, an adaptive supporting unit, an axial positioning unit, an integrated detection unit and a control unit, wherein the adaptive supporting unit is divided into a left group and a right group and is symmetrically and fixedly arranged on the upper surface of the base seat; Each independent unit comprises a contact end, a two-dimensional swing mechanism, a six-dimensional force sensor and a radial sliding table which are sequentially arranged from top to bottom, wherein the lower surface of the contact end is fixedly connected with the upper surface of the two-dimensional swing mechanism, the lower surface of the two-dimensional swing mechanism is fixedly connected with the upper surface of the six-dimensional force sensor, the lower surface of the six-dimensional force sensor is fixedly connected with the upper surface of a sliding block of the radial sliding table, the lower surface of a base of the radial sliding table is fixedly connected with the upper surface of a base, and the working surfaces of the left and right groups of contact ends are oppositely arranged. The invention further provides that the contact end is made of non-metal materials, and the working surface facing the cylinder body is a V-shaped groove or a large-radius arc surface. The two-dimensional swinging mechanism further comprises a U-shaped base, a cross shaft and a U-shaped swinging frame, wherein the upper surface of the U-shaped swinging frame is fixedly connected with the lower surface of the contact end head, the lower surface of the U-shaped base is fixedly connected with the upper surface of the six-dimensional force sensor, the cross shaft is provided with a first shaft neck and a second shaft neck which are mutually perpendicular, two ends of the first shaft neck are rotatably connected with two side plates of the U-shaped base through bearings, and two ends of the second shaft neck are rotatably connected with two side plates of the U-shaped swinging frame through bearings. The invention is further characterized in that the radial sliding table is a precise linear module, and the moving direction of the sliding block is horizontally arranged and perpendicular to the axis direction of the aviation barrel. The axial positioning unit comprises a mounting support, a transverse adjustment sliding table and an end cover plate, wherein the lower surface of the mounting support is fixedly connected with the upper surface of the base, the base of the transverse adjustment sliding table is fixedly connected with the mounting support, the back surface of the end cover plate is fixedly connected with the front surface of a sliding block of the transverse adjustment sliding table, and a plurality of positioning pins which can stretch along the axial direction of the cylinder are arranged on the front surface of the end cover plate. The integrated detection unit comprises upright posts, annular tracks, a moving platform, a vertical lifting sliding table, a sensor mounting plate and a measuring sensor, wherein the lower ends of the two upright posts are fixedly connected with the upper surface of the base seat, the two upright posts are respectively positioned on the outer sides of the left and right groups of self-adaptive support units, the two ends of the annular tracks are respectively fixedly connected