Flatness and straightness measuring device for ultra-long aviation plate products

Abstract

A flatness and straightness measuring device for ultra-long aviation plate products comprises a measuring frame body, a dial indicator, a fastening jackscrew, a cross beam, a fastening screw and a supporting rod, the measuring frame body is provided with a cross beam groove, the cross beam groove is matched with the cross beam, the cross beam is connected with the cross beam groove, the cross beam is provided with a fastening screw groove, and the measuring frame body is provided with a screw hole. The screw holes and the fastening screw grooves are matched with the fastening screws, the fastening screws are sequentially connected with the screw holes and the fastening screw grooves through threads, the lower portions of the supporting rods are connected with aviation plate products, the supporting rods are divided into a single supporting rod and a double supporting rod, the measuring frame body is provided with single supporting rod holes, the single supporting rod holes are matched with the single supporting rod, and the single supporting rod penetrates through the single supporting rod holes. The single supporting rod is connected with the measuring frame body, double supporting rod holes are formed in the two sides of the cross beam, the double supporting rod holes are matched with the double supporting rods, and the double supporting rods penetrate through the double supporting rod holes and are connected with the cross beam.

Description

Technical Field

[0001] The utility model relates to the field of aviation product measurement, in particular to a device for measuring the flatness and straightness of super-long aviation plate products. Background Art

[0002] Extra-long aviation aluminum alloy products are widely used accessories in the aerospace field. Such products are prone to deformation during processing. Usually, after processing on the machine tool, they are checked for flatness and straightness by using a gauge or three-coordinate measurement. This is inconvenient to operate, has great limitations, and has high testing costs. In addition, they cannot be tested in places where three-coordinate measurement conditions are not available, which has disadvantages. Summary of the Invention

[0003] In response to the above-mentioned deficiencies in the prior art, the utility model provides a device for measuring the flatness and straightness of ultra-long plate-type aviation aluminum alloy products, which can meet the requirements for detecting the flatness and straightness of the products. The device has a simple and reasonable structure, good stability, convenient operation, and low cost. The number of micrometers to be installed can be selected according to the actual length of the aviation plate products, and the device has a flexible structure.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A device for measuring the flatness and straightness of an extra-long aviation plate product comprises a measuring frame body, a micrometer, a fastening screw, a crossbeam, a fastening screw, and a support rod. The measuring frame body has a crossbeam groove, the crossbeam groove is adapted to the crossbeam, the crossbeam is connected to the crossbeam groove, the crossbeam has a fastening screw groove, the measuring frame body has a screw hole, the screw hole and the fastening screw groove are adapted to the fastening screw, the fastening screw is sequentially connected to the screw hole and the fastening screw groove through a thread, the lower part of the support rod is connected to the aviation plate product, the support rod is divided into a single support rod and a double support rod, the measuring frame body has a single support rod hole, the single support rod hole is adapted to the single support rod, the single support rod passes through the single support rod hole, the single support rod is connected to the measuring frame body, double support rod holes are provided on both sides of the crossbeam, the double support rod holes are adapted to the double support rod, the double support rod passes through the double support rod hole, and the double support rod is connected to the crossbeam.

[0006] The measuring frame body of the utility model is connected to the dial indicator, the measuring frame body has a plurality of mounting holes, the dial indicator has a measuring rod, the measuring rod is connected to aviation plate products, the measuring rod has a mounting block outside, the mounting block is adapted to the mounting hole, and the mounting block is connected to the mounting hole.

[0007] The measuring frame body of the utility model has a plurality of fastening holes, the fastening holes are adapted to fastening top screws, the fastening top screws pass through the fastening holes, the fastening top screws are connected to the mounting blocks, and the fastening top screws are connected to the fastening holes through threads. Beneficial effects

[0008] The utility model can measure the flatness and straightness of aviation plate products. During the flatness inspection, the measuring frame body is first placed on the surface of the aviation plate product to be inspected, with the support rods all in contact with the surface of the aviation plate product. Then, according to the actual length of the aviation plate product to be inspected, the number of dial indicators to be installed is selected, the initial position of the dial indicator is adjusted, and the plate is fixed with a tightening screw. Within the required inspection range, the measuring frame body is moved longitudinally and transversely, and the reading of the dial indicator will change according to the change of the surface flatness. The fluctuation value of the reading is recorded, which is the error value of the flatness. During the straightness inspection, the measuring frame body is first placed horizontally, with the dial indicator close to the surface of the aviation plate product to be inspected. The measuring frame body is moved, and the reading of the dial indicator will change according to the change of the surface flatness. The fluctuation value is the error value of the straightness. The utility model is convenient and quick to use, and the numerical change is intuitive.

[0009] The measuring frame body and crossbeam of the utility model are made of high-strength and stable aluminum alloy, and are processed by precision machine tools and special processes. They have high precision, light weight, stable structure, low cost, and are easy to use. They can meet the requirements for flatness and straightness detection of ultra-long plate aviation aluminum alloy products.

[0010] The utility model can meet the requirements for detecting the flatness and straightness of extra-long plate-type aviation aluminum alloy products. It has a simple and reasonable structure, good stability, easy operation, and low cost. The number of micrometers to be installed can be selected according to the actual length of the aviation plate products, and the structure is flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The present invention is a schematic structural diagram of a device for measuring the flatness and straightness of an ultra-long aviation board product.

[0012] Figure 2 This is a schematic structural diagram of the measuring stand body described in the present utility model.

[0013] Figure 3 This is a schematic structural diagram of the measuring frame body and aviation board products described in the present invention.

[0014] Figure 4 This is a cross-sectional view of the measuring frame body structure described in the present utility model.

[0015] Figure 5 This is a cross-sectional view of the measuring frame body and the crossbeam connection structure described in the present utility model. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments:

[0017] Example 1:

[0018] A device for measuring the flatness and straightness of an extra-long aviation plate product, comprising a measuring frame body 01, a micrometer 03, a fastening screw 07, a crossbeam 09, a fastening screw 11, and a support rod 14. The measuring frame body 01 has a crossbeam groove 10, which is adapted to the crossbeam 09. The crossbeam 09 is connected to the crossbeam groove 10. The crossbeam 09 has a fastening screw groove 13. The measuring frame body 01 has a screw hole 12. The screw hole 12 and the fastening screw groove 13 are adapted to the fastening screw 11. The fastening screw 11 is sequentially connected to the screw hole 12 and the fastening screw groove 13 through a thread. The lower part of the support rod 14 is connected to the aviation plate product 02. The support rod 14 is divided into a single support rod 141 and a double support rod 142. The measuring frame body 01 has a single support rod hole 15, which is adapted to the single support rod 141. The single support rod 141 passes through the single support rod hole 15, and the single support rod 141 is connected to the measuring frame body 01. The crossbeam 09 has double support rod holes 16 on both sides, which are adapted to the double support rod 142. The double support rod 142 passes through the double support rod hole 16, and the double support rod 142 is connected to the crossbeam 09. The measuring frame body 01 and the crossbeam 09 are made of high-strength and stable aluminum alloy, and are processed using precision machine tools and special processes. They have high precision, light weight, stable structure, low cost, and are easy to use. They can meet the requirements for flatness and straightness detection of ultra-long plate aviation aluminum alloy products.

[0019] Example 2:

[0020] The measuring frame body 01 of the utility model is connected to the micrometer 03, the measuring frame body 01 has a plurality of mounting holes 06, the micrometer 03 has a measuring rod 04, the measuring rod 04 is connected to the aviation board product 02, the measuring rod 04 has a mounting block 05 on the outside, the mounting block 05 is adapted to the mounting hole 06, and the mounting block 05 is connected to the mounting hole 06. This device can measure the flatness and straightness of the aviation board product 02. When the plane is detected, the measuring frame body 01 is first placed on the surface of the aviation board product 02 to be detected, and the support rods 14 are in contact with the surface of the aviation board product 02. Then, according to the actual length of the aviation board product 02 to be detected, the measuring frame body 01 is placed on the surface of the aviation board product 02 to be detected. , select the installation quantity of micrometer 03, adjust the initial position of micrometer 03, and fix it with the tightening screw 07. Within the required detection range, move the measuring frame body 01 longitudinally and transversely. The reading of micrometer 03 will change according to the change of surface flatness. Record the fluctuation value of the reading, which is the error value of flatness. When testing straightness, first place the measuring frame body 01 horizontally, and the micrometer 03 close to the surface of the aviation plate product 02 to be tested. Move the measuring frame body 01. The reading of micrometer 03 will change according to the change of surface flatness. Its fluctuation value is the error value of straightness. It is convenient and quick to use, and the numerical change is intuitive.

[0021] Example 3:

[0022] The measuring frame body 01 of the utility model has a plurality of fastening holes 08, the fastening holes 08 are adapted to the fastening top screws 07, the fastening top screws 07 pass through the fastening holes 08, the fastening top screws 07 are connected to the mounting block 05, and the fastening top screws 07 are connected to the fastening holes 08 through threads. This device can meet the requirements for detecting the flatness and straightness of super-long plate-type aviation aluminum alloy products, has a simple and reasonable structure, good stability, easy operation, and low cost, and can select the number of micrometers 03 to be installed according to the actual length of the aviation plate product 02, with a flexible structure.

[0023] Example 4:

[0024] Installation steps: First, place the beam 09 into the beam groove 10, and the fastening screw groove 13 corresponds to the position of the screw hole 12, then connect the fastening screw 11 to the screw hole 12 and the fastening screw groove 13 in sequence to fix the beam 09 to the measuring frame body 01, then pass the single support rod 141 and the double support rod 142 through the single support rod hole 15 and the double support rod hole 16 respectively, and fix them to the measuring frame body 01 and the beam 09 respectively, and the support height of the support rods 14 is consistent, then place the dial indicator 03 on the upper part of the measuring frame body 01, and the mounting block 05 passes through the mounting hole 06, and the measuring rod 04 and the bottom of the support rod 14 are at the same height, finally pass the fastening top screw 07 through the fastening hole 08, and tighten the mounting block 05, and the fastening top screw 07 is fastened to the measuring frame body 01 through the thread to complete the installation.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for measuring the flatness and straightness of super-long aviation plate products, characterized by: : It includes a measuring frame body (01), a micrometer (03), a fastening screw (07), a crossbeam (09), a fastening screw (11), and a support rod (14). The measuring frame body (01) has a crossbeam groove (10), the crossbeam groove (10) is adapted to the crossbeam (09), the crossbeam (09) is connected to the crossbeam groove (10), the crossbeam (09) has a fastening screw groove (13), the measuring frame body (01) has a screw hole (12), the screw hole (12) and the fastening screw groove (13) are adapted to the fastening screw (11), the fastening screw (11) is connected to the screw hole (12) and the fastening screw groove (13) in sequence through a thread, and the support rod (14) The lower part is connected to an aviation board product (02), the support rod (14) is divided into a single support rod (141) and a double support rod (142), the measuring frame body (01) has a single support rod hole (15), the single support rod hole (15) is adapted to the single support rod (141), the single support rod (141) passes through the single support rod hole (15), and the single support rod (141) is connected to the measuring frame body (01), the crossbeam (09) has double support rod holes (16) on both sides, the double support rod holes (16) are adapted to the double support rod (142), the double support rod (142) passes through the double support rod holes (16), and the double support rod (142) is connected to the crossbeam (09).

2. The device for measuring the flatness and straightness of an ultra-long aviation board product according to claim 1 is characterized in that The measuring frame body (01) is connected to the micrometer (03), the measuring frame body (01) has a plurality of mounting holes (06), the micrometer (03) has a measuring rod (04), the measuring rod (04) is connected to the aviation board product (02), the measuring rod (04) has a mounting block (05) outside, the mounting block (05) is adapted to the mounting hole (06), and the mounting block (05) is connected to the mounting hole (06).

3. The device for measuring the flatness and straightness of an ultra-long aviation board product according to claim 2 is characterized in that The measuring frame body (01) has a plurality of fastening holes (08), the fastening holes (08) are adapted to the fastening top screws (07), the fastening top screws (07) pass through the fastening holes (08), the fastening top screws (07) are connected to the mounting block (05), and the fastening top screws (07) are connected to the fastening holes (08) through threads.

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