CN211668395U - Detection apparatus for unsmooth volume of fastener pin fin - Google Patents
Detection apparatus for unsmooth volume of fastener pin fin Download PDFInfo
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- CN211668395U CN211668395U CN202020218264.5U CN202020218264U CN211668395U CN 211668395 U CN211668395 U CN 211668395U CN 202020218264 U CN202020218264 U CN 202020218264U CN 211668395 U CN211668395 U CN 211668395U
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Abstract
The utility model discloses a detection apparatus for unsmooth volume of fastener pin fin, including school piece, working head, fastening pin and amesdial, the amesdial includes gauge outfit probe, tip cylinder and dial plate, the working head includes a body coupling's go-between and supporting part, the tip cylinder passes the working head, the tip cylinder with go-between fixed connection, the lower extreme parallel and level of supporting part and with the contact of school piece, the protruding under the gauge outfit probe natural state the lower extreme of supporting part. The utility model provides a pair of detection device of unsmooth volume of fastener pin fin, the precision is high, easy and simple to handle, detection efficiency is high and can detect pin fin protrusion volume and sunken volume.
Description
Technical Field
The utility model relates to a detection apparatus for unsmooth volume of fastener pin fin belongs to the pneumatic surface fastener installation quality of airborne vehicle and detects technical field.
Background
In the field of aerospace manufacturing, the control of the quality of the aerodynamic surface of an airplane has very important significance on the flight performance of the airplane. The majority of the connection modes of the aircraft skin are fixedly connected in a riveting mode, and the fasteners are all countersunk so that the nail heads of the fasteners are flush with the aircraft skin.
The skin fasteners of a common aircraft are tens of thousands, and have great influence on the surface quality of the aircraft. In the aircraft assembly technology, the concave-convex amount of the nail head is controlled by controlling the dimple depth of the mounting hole of the countersunk head fastener. After installation of the countersunk head fastener, it is still necessary to check the amount of relief of the fastener head relative to the aircraft skin to ensure that the fastener is installed properly. In the prior art, the protruding amount of a nail head of a fastener is detected by adopting a method of matching a straight steel ruler with a feeler gauge. The method is that a straight steel ruler is attached to the nail head plane, and a clearance value between the straight steel ruler and the surface of the skin is measured by a filler gauge. The amount of the dent of the nail head was determined empirically by visual observation and hand feeling.
However, the detection method can only measure the protrusion amount of the nail head of the fastener, and the recess amount of the nail head of the fastener cannot be measured; in addition, the measurement efficiency is low, and the detection requirements of tens of thousands of fasteners cannot be met; in addition, the feeler gauge is inconvenient to use and low in precision, and the cooperation of the straight ruler and the feeler gauge is greatly influenced by manual operation, so that errors are large.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome prior art's defect, provide a precision height, easy and simple to handle, detection efficiency height and can detect the unsmooth measuring instrument of fastener pin fin of pin fin protrusion volume and sunken volume.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides a detection apparatus for unsmooth volume of fastener pin fin, includes school piece, working head, fastening pin and amesdial, the amesdial includes gauge outfit probe, tip cylinder and dial plate, the working head includes go-between and supporting part of body coupling, the tip cylinder passes the working head, the tip cylinder with go-between fixed connection, the lower extreme parallel and level of supporting part and with the contact of school piece, the protruding under the gauge outfit probe natural state the lower extreme of supporting part.
The end cylinder is provided with a mounting blind hole, the connecting ring is provided with a pin hole, and the fastening pin penetrates through the pin hole and is fixed with the mounting blind hole.
The number of the pin holes, the number of the mounting blind holes and the number of the fastening pins are all 2.
Two fastening pins are symmetrically distributed.
The supporting parts are of three-claw structures and are uniformly distributed along the circumference of the connecting ring.
The zero calibration block is of a disc structure.
The fastening pin is in interference fit with the pin hole and the mounting blind hole.
The utility model has the advantages that: the utility model discloses a detection device for the concave-convex amount of a fastener pin head, which can measure both the convex amount and the concave amount of rivet installation; the measuring operation process is simple, convenient and quick, the production efficiency can be improved, and the detection requirements of a large number of countersunk fasteners can be met; the measurement precision is high, and the operation error is small; the detection device has simple structure and is durable.
Drawings
Fig. 1 is an exploded view of the detecting device for detecting the concave-convex amount of the fastener head of the present invention;
fig. 2 is a schematic view of the overall structure of the device for detecting the concave-convex amount of the fastener head according to the present invention;
fig. 3 is a schematic working diagram of the detecting device for detecting the concave-convex amount of the fastener pin head of the present invention.
The reference numbers in the figures are as follows: 1-a zero calibration block; 2-working head; 3-fastening pins; 4-dial indicator; 5-the surface of the product; 6-countersunk head fasteners; 21-a connecting ring; 22-a support; 211-pin holes; 41-a gauge head probe; 42-end cylinder; 43-dial plate; 421-mounting blind hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and 2, the utility model provides a detection device for unsmooth volume of fastener pin fin, including zero calibration piece 1, working head 2, fastening pin 3 and amesdial 4. The zero calibration block 1 is of a disc structure. The dial gauge 4 adopts a structure existing in the prior art and comprises a gauge head probe 41, an end cylinder 42 and a dial 43. The end portion cylinder 42 is machined to be provided with a mounting blind hole 421, and the depth of the mounting blind hole 421 can ensure that the fastening pin 3 can be firmly mounted without influencing the normal shrinkage of the gauge outfit probe 41.
The working head 2 comprises a connecting ring 21 and a supporting part 22 which are integrally connected, an end cylinder 42 penetrates through the connecting ring 21, and the inner circle of the upper end of the connecting ring 21 is coaxial with and closely attached to the end cylinder 42 of the dial indicator. The supporting portions 22 are of a three-claw structure and are uniformly distributed along the circumference of the connecting ring 21, and the lower ends of the supporting portions 22 are flush and contact with the zero calibration block 1.
The connecting ring 21 is provided with pin holes 211, the fastening pins 3 penetrate through the pin holes 211 and are fixed with the mounting blind holes 421, the number of the pin holes 211, the mounting blind holes 421 and the number of the fastening pins 3 are 2, and the two fastening pins 3 are symmetrically distributed. The fastening pin 3 is in interference fit with the pin hole 211 and the mounting blind hole 421.
The utility model discloses a working process does: firstly, mounting the working head 2 on the end part cylinder 42 of the dial indicator by using a fastening pin 3, and ensuring the coaxiality of the working head 2 and the end part cylinder 42; when the nail head is sunken relative to the surface of a product after the countersunk head fastener 6 is installed, the gauge head probe 41 of the dial gauge needs to be inserted into the sunken part to contact with the nail head to measure the sunken amount, so the gauge head probe 41 of the dial gauge needs to be protruded out of the working surface of the working head 2 in a natural state, and the protruded amount is larger than the sunken amount allowed by the installation of the countersunk head fastener 6. The utility model discloses on placing the laminating to school zero block 1 plane with the working face of working head 2 earlier, the gauge outfit probe 41 of amesdial 4 withstands school zero block 1 plane, carries out the school zero to amesdial 4.
As shown in fig. 3, the working surface of the working head 2 is placed on the product surface 5 attached to the periphery of the countersunk head fastener, the gauge head probe 41 of the dial gauge abuts against the position of the countersunk head fastener 6 to be detected, and the value of the dial 43 of the dial gauge is read, namely the mounting concave-convex amount of the countersunk head fastener 6.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a detection apparatus for unsmooth volume of fastener pin fin which characterized in that: including zeroing block (1), work head (2), fastening pin (3) and amesdial (4), amesdial (4) are including gauge outfit probe (41), tip cylinder (42) and dial plate (43), work head (2) are including go-between (21) and supporting part (22) of body coupling, tip cylinder (42) are passed work head (2), tip cylinder (42) with go-between (21) fixed connection, the lower extreme parallel and level of supporting part (22) and with zeroing block (1) contact, protrusion under gauge outfit probe (41) natural state the lower extreme of supporting part (22).
2. A device for detecting the amount of irregularity of a head of a fastener according to claim 1, wherein: the end portion cylinder (42) is provided with a mounting blind hole (421), the connecting ring (21) is provided with a pin hole (211), and the fastening pin (3) penetrates through the pin hole (211) and the mounting blind hole (421) to be fixed.
3. A device for detecting the amount of crown of a fastener according to claim 2, wherein: the number of the pin holes (211), the number of the mounting blind holes (421) and the number of the fastening pins (3) are all 2.
4. A device for detecting the amount of crown of a fastener according to claim 3, wherein: the two fastening pins (3) are symmetrically distributed.
5. A device for detecting the amount of irregularity of a head of a fastener according to claim 1, wherein: the supporting parts (22) are of three-claw structures and are uniformly distributed along the circumference of the connecting ring (21).
6. A device for detecting the amount of irregularity of a head of a fastener according to claim 1, wherein: the zero calibration block (1) is of a disc structure.
7. A device for detecting the amount of crown of a fastener according to claim 2, wherein: the fastening pin (3) is in interference fit with the pin hole (211) and the mounting blind hole (421).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218264.5U CN211668395U (en) | 2020-02-27 | 2020-02-27 | Detection apparatus for unsmooth volume of fastener pin fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218264.5U CN211668395U (en) | 2020-02-27 | 2020-02-27 | Detection apparatus for unsmooth volume of fastener pin fin |
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| Publication Number | Publication Date |
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| CN211668395U true CN211668395U (en) | 2020-10-13 |
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| CN202020218264.5U Active CN211668395U (en) | 2020-02-27 | 2020-02-27 | Detection apparatus for unsmooth volume of fastener pin fin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3115592A1 (en) * | 2020-10-23 | 2022-04-29 | Lisi Aerospace | Method of probing a curved surface to determine a corrected drilling depth |
-
2020
- 2020-02-27 CN CN202020218264.5U patent/CN211668395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3115592A1 (en) * | 2020-10-23 | 2022-04-29 | Lisi Aerospace | Method of probing a curved surface to determine a corrected drilling depth |
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