CN210570392U

CN210570392U - Diameter-variable inspection device

Info

Publication number: CN210570392U
Application number: CN201921142617.1U
Authority: CN
Inventors: 陶西慧; 冯绍红; 成靖
Original assignee: Chengdu Aircraft Industrial Group Co Ltd
Current assignee: Chengdu Aircraft Industrial Group Co Ltd
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-05-19
Anticipated expiration: 2029-07-20

Abstract

The utility model belongs to aircraft assembly detection area especially relates to a variable diameter inspection device, and it includes advancing device, accurate adjustment device, casing and guide ring, accurate adjustment device and advancing device are located inside the casing, just advancing device can reciprocate in the casing, and the accurate adjustment device is located advancing device, and the work piece is located the middle part of casing, the bottom of casing is provided with the guide ring. The application uses a general device to replace a series of special pins, and can quickly finish the aperture detection; meanwhile, the device is more convenient and effective to use in the porous deviation measurement process, the inspection precision is improved, and the manufacturing and management cost is reduced. The measuring and reading values of different apertures and positioning hole deviations can be rapidly completed through the self-adjusting function, and the variable-diameter linear continuous measuring function is realized. The method is simple and convenient to use, and can realize quick engineering measurement.

Description

Diameter-variable inspection device

Technical Field

The application belongs to the field of aircraft assembly detection, and particularly relates to a diameter-variable inspection device.

Background

In aircraft assembly, pins are used in large numbers for positioning and inspection work between parts or between parts and tooling. Since the deformation after assembly cannot be determined, in order to inspect the deviation of one positioning hole, a series of inspection pins are generally customized to achieve the inspection target. However, the deformation is too large and the inspection pin is not available, or the span of the series of pins is too large, so that the uncertainty of the inspection is too large and the problem cannot be determined.

Currently, there are two main types of inspection pins: straight pins and stepped pins. Both pins can only be "spot checked", i.e. only one or more (typically 2-3) fixed diameters can be checked (pass or fail), cannot be read accurately, and both require a series of pins to achieve the inspection goal. In this way, the manufacturing and management costs of the pin are high, and the inspection accuracy is poor.

In recent years, inspection pins of "step pin + bush" have also appeared in the industry, i.e. the addition of bushes of different outer diameters on the step pin increases the inspection range. It is merely a series bushing instead of a series pin and all of the problems described above still remain.

Disclosure of Invention

In order to solve the defects of the prior art, the variable diameter inspection device capable of rapidly completing measurement readings of different apertures and positioning hole deviations through a self-adjusting function and realizing a variable diameter linear continuous measurement function is provided.

In order to achieve the technical effects, the technical scheme of the application is as follows:

a variable diameter inspection apparatus, characterized in that: including advancing device, accurate adjusting device, casing and guide ring, accurate adjusting device and advancing device are located inside the casing, just advancing device can reciprocate in the casing, and accurate adjusting device is located advancing device, and the work piece is located the middle part of casing, the bottom of casing is provided with the guide ring.

The propelling device comprises a propelling rod and a propelling handle, the middle part of the propelling rod is of a conical structure, a sliding groove is formed in the outer conical surface of the conical structure, the working block is arranged in the sliding groove, and the working block can slide up and down in the shell.

The sliding grooves are symmetrically and uniformly distributed, and the motion center lines of all the sliding grooves are on the same conical surface.

The sliding groove is arranged in a T shape or a wedge shape.

Be provided with the gear notch on the pushing ram, the accurate adjustment device includes driving gear, connecting rod and accurate adjustment handle, and the driving gear is located the gear notch, and connecting rod and driving gear connection, connecting rod and accurate adjustment handle link to each other, and locking bolt passes casing and pushing ram contact.

The push rod comprises a cylindrical surface positioned on the upper portion, the gear notch is arranged on the cylindrical surface, a conical structure, a limiting block and a scale section are sequentially arranged below the cylindrical surface, and an avoiding groove is formed between the cylindrical surface and the conical structure.

A connecting part used for being connected with the pushing handle is arranged above the cylindrical surface.

The application has the advantages that:

the application uses a general device to replace a series of special pins, and can quickly finish the aperture detection; meanwhile, the device is more convenient and effective to use in the porous deviation measurement process, the inspection precision is improved, and the manufacturing and management cost is reduced. The measuring and reading values of different apertures and positioning hole deviations can be rapidly completed through the self-adjusting function, and the variable-diameter linear continuous measuring function is realized. The method is simple and convenient to use, and can realize quick engineering measurement.

Drawings

Fig. 1 is an external view.

Fig. 2 is a structural view.

3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 a 3- 3 a 3. 3

Fig. 4 is a sectional view B-B.

Fig. 5 is a view showing the structure of the push rod.

Fig. 6 is a diagram of motion analysis, initial position and change of position after motion, and X is the distance of change.

In the drawings: 1-a propelling rod, 2-a driving gear, 3-a fine adjustment handle, 4-a connecting rod, 5-a shell, 6-a working block, 7-a guide ring, 8-a locking bolt, 9-a propelling handle, 11-a connecting part, 12-a cylindrical surface, 13-a gear notch, 14-an avoiding groove, 15-an outer conical surface, 16-a sliding groove, 17-a limiting block and 18-a scale section.

Detailed Description

Example 1

The variable-diameter inspection device comprises a propelling device, a fine adjustment device, a shell 5 and a guide ring 7, wherein the fine adjustment device and the propelling device are located inside the shell 5, the propelling device can move up and down in the shell 5, the fine adjustment device is located on the propelling device, a working block 6 is located in the middle of the shell 5, and the guide ring 7 is arranged at the bottom of the shell 5. The application uses a general device to replace a series of special pins, and can quickly finish the aperture detection; meanwhile, the device is more convenient and effective to use in the porous deviation measurement process, the inspection precision is improved, and the manufacturing and management cost is reduced. The measuring and reading values of different apertures and positioning hole deviations can be rapidly completed through the self-adjusting function, and the variable-diameter linear continuous measuring function is realized. The method is simple and convenient to use, and can realize quick engineering measurement.

Example 2

The variable-diameter inspection device comprises a propelling device, a fine adjustment device, a shell 5 and a guide ring 7, wherein the fine adjustment device and the propelling device are located inside the shell 5, the propelling device can move up and down in the shell 5, the fine adjustment device is located on the propelling device, a working block 6 is located in the middle of the shell 5, and the guide ring 7 is arranged at the bottom of the shell 5. When the propelling device advances, the conical structure moves to drive the working block 6 to move along the radial direction of the shell, and then the diameter of a cylinder formed by the center line of the outermost end of the working block 6 is changed. The diameter of the hole can be checked by contacting the cylindrical surface 12 with the hole.

The propelling device comprises a propelling rod 1 and a propelling handle 9, the middle part of the propelling rod 1 is of a conical structure, a sliding groove 16 is formed in an outer conical surface 15 of the conical structure, the working block 6 is installed in the sliding groove 16, and the working block 6 can slide up and down in the shell 5. The sliding grooves 16 are symmetrically and uniformly distributed, and the moving center lines of all the sliding grooves 16 are on the same conical surface. The sliding groove 16 is provided in a T-shape or wedge shape.

Be provided with gear notch 13 on the pushing ram 1, the accurate adjustment device includes driving gear 2, connecting rod 4 and accurate adjustment handle 3, and driving gear 2 is located gear notch 13, and connecting rod 4 is connected with driving gear 2, and connecting rod 4 links to each other with accurate adjustment handle 3, and locking bolt 8 passes

casing

5 and 1 contacts of pushing ram. The push rod 1 comprises a cylindrical surface 12 positioned on the upper portion, a gear notch 13 is formed in the cylindrical surface 12, a conical structure, a limiting block 17 and a scale section 18 are sequentially arranged below the cylindrical surface 12, and an avoiding groove 14 is formed between the cylindrical surface 12 and the conical structure. Above the cylindrical surface 12, a connecting portion 11 for connection to the propulsion handle 9 is provided.

The fine adjustment device is driven by a gear and a gear groove of the propelling device, the measuring outer diameter can be accurately adjusted at any time through the fine adjustment handle 3, and the position is fixed through the locking nut after the adjustment is in place. And a measurement value scale is set according to the measuring range of the inspection pin, and the inspection outer diameter can be read at any time in the measuring process.

The cylindrical surface 12 plays a guiding role, and the gear notch 13 is meshed with the driving gear 2 for accurate adjustment. Avoiding grooves 14 for avoiding interference during the installation of the work block 6. The outer conical surface 15 is provided with sliding grooves 16 which are designed with 12 notches, and the number of the notches can be increased or decreased (4 notches in one group), and can be not less than 8. The sliding lines of the sliding grooves 16 need to be ensured on the same conical surface, and the conical degree of the conical surface is equal to that of the outer conical surface 15; to ensure that the work piece 6 does not come out of the slide groove 16, the slide groove 16 may be provided with a "micro-T" or micro-wedge shape. The figure is according to a micro wedge design. And the limiting block 17 limits the stroke of the push rod 1, the highest end of the push rod is contacted with the working block 6, and the lowest end of the push rod is contacted with the guide ring 7. The scale section 18 is used for guiding and scaling.

As shown in fig. 1-5, the propelling rod 1 and the propelling handle 9 form a propelling device; the driving gear 2, the connecting rod 4 and the fine adjustment handle 3 form a fine adjustment device. The outermost of the working blocks 6) is the main working surface.

The using method comprises the following steps: the check pin is inserted into the hole, so that the measuring position is positioned on the main working surface of the working block 6, the adjustment is completed by matching the advancing pushing handle 9 and the rotating fine adjustment handle 3 (the check pin can be rotated to ensure the measuring accuracy in the measuring process), then the locking nut is screwed, and the measured value is read at the tail end.

Claims

1. A variable diameter inspection apparatus, characterized in that: including advancing device, accurate adjustment device, casing (5) and guide ring (7), accurate adjustment device and advancing device are located inside casing (5), just advancing device can reciprocate in casing (5), and the accurate adjustment device is located advancing device, and work piece (6) are located the middle part of casing (5), the bottom of casing (5) is provided with guide ring (7).

2. A variable diameter inspection apparatus according to claim 1, wherein: the propelling device comprises a propelling rod (1) and a propelling handle (9), the middle part of the propelling rod (1) is of a conical structure, a sliding groove (16) is formed in an outer conical surface (15) of the conical structure, the working block (6) is installed in the sliding groove (16), and the working block (6) can slide up and down in the shell (5).

3. A variable diameter inspection apparatus according to claim 2, wherein: the sliding grooves (16) are symmetrically and uniformly distributed, and the moving center lines of all the sliding grooves (16) are on the same conical surface.

4. A variable diameter inspection apparatus according to claim 2, wherein: the sliding groove (16) is arranged in a T shape or a wedge shape.

5. A variable diameter inspection apparatus according to claim 2, wherein: be provided with gear notch (13) on pushing ram (1), the accurate adjustment device includes driving gear (2), connecting rod (4) and accurate adjustment handle (3), and driving gear (2) are located gear notch (13), and connecting rod (4) are connected with driving gear (2), and connecting rod (4) link to each other with accurate adjustment handle (3), and locking bolt (8) pass casing (5) and push ram (1) contact.

6. A variable diameter inspection apparatus according to claim 2, wherein: the push rod (1) comprises a cylindrical surface (12) located on the upper portion, a gear notch (13) is formed in the cylindrical surface (12), a conical structure, a limiting block (17) and a scale section (18) are sequentially arranged below the cylindrical surface (12), and an avoiding groove (14) is formed between the cylindrical surface (12) and the conical structure.

7. A variable diameter inspection apparatus according to claim 6, wherein: a connecting part (11) used for being connected with the pushing handle (9) is arranged above the cylindrical surface (12).