CN215003365U - Blind hole measuring device - Google Patents
Blind hole measuring device Download PDFInfo
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- CN215003365U CN215003365U CN202121356575.9U CN202121356575U CN215003365U CN 215003365 U CN215003365 U CN 215003365U CN 202121356575 U CN202121356575 U CN 202121356575U CN 215003365 U CN215003365 U CN 215003365U
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- blind hole
- fixed
- hole
- bushing
- bolt
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- 238000003754 machining Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a blind hole measuring device, include: the device comprises a bushing (1), a measuring scale (2) and a fixed drill jig (3); the bushing (1) is in a hollow cylindrical shape, and the top of the bushing (1) is provided with a flanging; the fixed drill jig (3) is fixed on a workpiece with a blind hole, a fixed hole of the bush (1) is formed in the fixed drill jig (3), and the bush (1) is inserted into the fixed hole and is tightly matched with the fixed hole; the measuring scale (2) penetrates through a lining hole of the lining (1) and is inserted into the blind hole, the measuring scale (2) is tightly matched with the lining hole, and the measuring scale (2) is tangent to the blind hole; the axis of the fixing hole is parallel to the axis of the blind hole. The blind hole depth measuring device accurately measures the blind hole depth, overcomes the defects of inaccurate measurement and large error of the original caliper, is simple to operate, convenient to disassemble and assemble, and fast and accurate in measurement, and effectively improves the production efficiency and the product quality.
Description
Technical Field
The utility model belongs to the technical field of the aerial survey, a blind hole measuring device is related to.
Background
In the manufacturing process of the airplane, the butt joint parts of the airplane are in a blind hole and blind hole-like connection mode, and the parts have higher requirements on the effective depth dimension of the hole straight-line section. The traditional blind hole depth measuring method mainly comprises a micrometer measuring method and a caliper measuring method.
The two methods have long measuring time, large process operation error and non-visual reading, and can not accurately measure the effective depth dimension of the straight line section of the blind hole.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blind hole measuring device provides an easy operation, practical efficient measuring tool.
The utility model provides a blind hole measuring device, include: the device comprises a bush 1, a measuring scale 2 and a fixed drill jig 3; wherein,
the bushing 1 is in a hollow cylindrical shape, and the top of the bushing 1 is provided with a flanging;
the fixed drill jig 3 is fixed on a workpiece with a blind hole, a fixed hole of the bush 1 is formed in the fixed drill jig 3, and the bush 1 is inserted into the fixed hole and is tightly matched with the fixed hole;
the measuring scale 2 penetrates through a lining hole of the lining 1 and is inserted into the blind hole, the measuring scale 2 is tightly matched with the lining hole, and the measuring scale 2 is tangent to the blind hole;
the axis of the fixing hole is parallel to the axis of the blind hole.
Optionally, the blind hole measuring device further includes: a fixing bolt 4;
the fixed drill jig 3 is fixed on the workpiece through a fixing bolt 4.
Optionally, when the aperture of the blind hole is equal to the aperture of the bushing hole of the bushing 1, the fixed jig 3 is a fixed jig for processing the blind hole.
Optionally, the size of the end fillet at one end of the measuring scale 2, which extends into the blind hole, is smaller than the size of the R corner of the blind hole to be measured.
Optionally, the fixed jig 3 is L-shaped;
the first side edge of the fixed drill jig 3 is vertical to the axis of the blind hole, and a fixed hole is formed in the first side edge;
the second side of the fixed jig 3 is connected with a workpiece through a fixing bolt 4.
Optionally, the fixing bolt 4 comprises a bolt, a bushing and a handle nut;
the bolt is inserted into the bolt hole of the second side edge and the workpiece, a bushing is arranged in the bolt hole of the workpiece, and the handle nut is sleeved on the bolt and is adjacent to the workpiece.
The utility model provides a blind hole measuring device, include: the device comprises a bush 1, a measuring scale 2 and a fixed drill jig 3; the bushing 1 is in a hollow cylindrical shape, and the top of the bushing 1 is provided with a flanging; the fixed drill jig 3 is fixed on a workpiece with a blind hole, a fixed hole of the bush 1 is formed in the fixed drill jig 3, and the bush 1 is inserted into the fixed hole and is tightly matched with the fixed hole; the measuring scale 2 penetrates through a lining hole of the lining 1 and is inserted into the blind hole, the measuring scale 2 is tightly matched with the lining hole, and the measuring scale 2 is tangent to the blind hole; the axis of the fixing hole is parallel to the axis of the blind hole. The cylindrical measuring scale is tangent to the measured hole, so that the operation is simple, the disassembly and the assembly are convenient, and the measurement is rapid and accurate.
Drawings
Fig. 1 is a schematic structural diagram of a blind hole measuring device provided by the present invention;
fig. 2 is a first schematic structural diagram of a bushing provided by the present invention;
fig. 3 is a schematic structural diagram ii of the bushing provided by the present invention;
fig. 4 is a schematic structural diagram of a measuring scale provided by the present invention;
description of reference numerals:
1-a bushing; 2-measuring the scale; 3, fixing the drill jig; and 4, fixing the bolt.
Detailed Description
This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.
Fig. 1 is the utility model provides a blind hole measuring device's structural schematic diagram, as shown in fig. 1, the utility model provides a blind hole measuring device, include: the device comprises a bush 1, a measuring scale 2 and a fixed drill jig 3; wherein,
as shown in fig. 2 and 3, the bushing 1 is hollow and cylindrical, and the top of the bushing 1 is provided with a flanging; the fixed drill jig 3 is fixed on a workpiece with a blind hole, a fixed hole of the bush 1 is formed in the fixed drill jig 3, and the bush 1 is inserted into the fixed hole and is tightly matched with the fixed hole; the measuring scale 2 penetrates through a lining hole of the lining 1 and is inserted into the blind hole, the measuring scale 2 is tightly matched with the lining hole, and the measuring scale 2 is tangent to the blind hole; the axis of the fixing hole is parallel to the axis of the blind hole.
Illustratively, the bushing has an outer diameter of 50-100mm and an inner diameter of 10-50 mm. The diameter of the blind hole is not more than 50 mm.
Optionally, referring to fig. 1, the blind hole measuring apparatus further includes: a fixing bolt 4;
the fixed drill jig 3 is fixed on the workpiece through a fixing bolt 4.
Alternatively, as shown in fig. 4, when the bore diameter of the blind hole is equal to the bore diameter of the bushing bore of the bushing 1, the fixed jig 3 is a fixed jig for blind hole machining.
Optionally, the size of the end fillet at one end of the measuring scale 2, which extends into the blind hole, is smaller than the size of the R corner of the blind hole to be measured.
Optionally, the fixed jig 3 is L-shaped; the first side edge of the fixed drill jig 3 is vertical to the axis of the blind hole, and a fixed hole is formed in the first side edge; the second side of the fixed jig 3 is connected with a workpiece through a fixing bolt 4.
The fixed jig 3 may also have a flat plate shape, for example, when the blind hole is a blind hole in an airplane wing, the fixed jig 3 may have a plate shape.
Optionally, the fixing bolt 4 comprises a bolt, a bushing and a handle nut; the bolt is inserted into the bolt hole of the second side edge and the workpiece, a bushing is arranged in the bolt hole of the workpiece, and the handle nut is sleeved on the bolt and is adjacent to the workpiece.
Claims (6)
1. A blind hole measuring device, comprising: the device comprises a bushing (1), a measuring scale (2) and a fixed drill jig (3); wherein,
the bushing (1) is in a hollow cylindrical shape, and a flanging is arranged at the top of the bushing (1);
the fixed drill jig (3) is fixed on a workpiece with a blind hole, a fixed hole of the bushing (1) is formed in the fixed drill jig (3), and the bushing (1) is inserted into the fixed hole and is tightly matched with the fixed hole;
the measuring scale (2) penetrates through a lining hole of the lining (1) and is inserted into the blind hole, the measuring scale (2) is tightly matched with the lining hole, and the measuring scale (2) is tangent to the blind hole;
the axis of the fixing hole is parallel to the axis of the blind hole.
2. The blind hole measuring device according to claim 1, further comprising: a fixing bolt (4);
the fixed drill jig (3) is fixed on the workpiece through the fixed bolt (4).
3. Blind hole measuring device according to claim 1, characterized in that the fixed jig (3) is a fixed jig for the blind hole machining when the bore diameter of the blind hole is equal to the bore diameter of the bushing bore of the bushing (1).
4. Blind hole measuring device according to claim 1, characterized in that the dimension of the end fillet of the measuring rule (2) at the end deep into the blind hole is smaller than the R-angle dimension of the blind hole to be measured.
5. Blind hole measuring device according to claim 2, characterized in that the fixed jig (3) is L-shaped;
the first side edge of the fixed drill jig (3) is vertical to the axis of the blind hole, and a fixed hole is formed in the first side edge;
and the second side edge of the fixed drill jig (3) is connected with the workpiece through a fixing bolt (4).
6. Blind hole measuring device according to claim 5, characterized in that the fixing bolt (4) comprises a bolt, a bushing and a handle nut;
the bolt is inserted into the second side edge and the bolt hole of the workpiece, a lining is arranged in the bolt hole of the workpiece, and the handle nut is sleeved on the bolt and is adjacent to the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121356575.9U CN215003365U (en) | 2021-06-17 | 2021-06-17 | Blind hole measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121356575.9U CN215003365U (en) | 2021-06-17 | 2021-06-17 | Blind hole measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215003365U true CN215003365U (en) | 2021-12-03 |
Family
ID=79129093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121356575.9U Active CN215003365U (en) | 2021-06-17 | 2021-06-17 | Blind hole measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215003365U (en) |
-
2021
- 2021-06-17 CN CN202121356575.9U patent/CN215003365U/en active Active
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