CN213515354U - Nonstandard elbow size measurement testing fixture - Google Patents
Nonstandard elbow size measurement testing fixture Download PDFInfo
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- CN213515354U CN213515354U CN202022808829.8U CN202022808829U CN213515354U CN 213515354 U CN213515354 U CN 213515354U CN 202022808829 U CN202022808829 U CN 202022808829U CN 213515354 U CN213515354 U CN 213515354U
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- 238000005259 measurement Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 title description 2
- 238000003825 pressing Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000002310 elbow joint Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an inspection detection device technical field specifically discloses an utensil is examined in measurement of nonstandard return bend class size, including base, support, standard block, locating piece, the support is located the base top to the base can be dismantled with the support and be connected, and the standard block is located the support top and the standard block can be dismantled with the support and be connected, and the standard block top is equipped with the return bend recess, and the locating piece can be dismantled with the support and be connected, is equipped with the through-hole in the locating piece, is equipped with the pipe locating pin in the through. The purpose of this patent is to solve current measurement and examines a device complicacy, the various and not high problem of measurement precision of subassembly.
Description
Technical Field
The utility model relates to an inspection and detection device technical field, in particular to nonstandard return bend class size measurement examines utensil.
Background
External pipelines in the aircraft engine play important roles in oil liquid conveying, hydraulic power transmission, pneumatic power transmission, wire wrapping and the like; because of the particularity of the engine, the pipeline is irregularly shaped in space, so that the pipe needs to be bent into a required space shape, and then pipe joints are welded at two ends of the pipe or connected at the two ends in a flaring mode to connect an output port and a receiving port of the engine.
In order to ensure that the pipeline meets the requirements, the bent space shape and size of the pipeline need to be detected after the pipeline is successfully bent. The existing measuring and checking tool is complex in device, various in assembly and low in measuring precision.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a technical problem provide a nonstandard return bend pipe class size measurement examines utensil, solve current measurement and examine a device complicated, the subassembly is various and measure the problem that the precision is not high.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is: the utility model provides an utensil is examined in measurement of nonstandard return bend class size includes base, support, standard block, locating piece, and the support is located the base top to the base can be dismantled with the support and be connected, and the standard block is located the support top and the standard block can be dismantled with the support and be connected, and the standard block top is equipped with the return bend recess, and the locating piece can be dismantled with the support and be connected, is equipped with the through-hole in the locating piece, is equipped with the pipe locating.
The beneficial effect that this scheme produced is:
1. the method comprises the following steps of carrying out positioning measurement on the displacement of a pipe in a space by establishing a base, a support and a standard block, and measuring the axial positions of two ends of the pipe by a pipe positioning pin; the checking fixture is designed according to the theoretical size of the pipe, the allowable manufacturing tolerance of the pipe is comprehensively considered, the checking fixture can be controlled to measure the tolerance of the bent pipe by adjusting the width of the groove of the bent pipe of the standard block, the measuring precision of the checking fixture can reach +/-0.2, and the product requirement is completely met.
2. The gauge is simple in design structure, the components except for national standard parts can be made of low-price common carbon steel, the manufacturing cost is low, the manufacturing period is short in 1 period, and the assembly is easy. By the method, similar pipeline part detection tools can be designed, and the requirement for measuring the size of the pipeline part can be met. The checking fixture can be used as a spot welding tool during assembly of the assembly besides being used as a checking fixture.
And the pressing plate is positioned above the standard block and is in threaded connection with the standard block. The tube is fixed by the matching of the pressing block and the standard block, and the tube can be properly corrected by the design.
Furthermore, the upper half part of the positioning block is semicircular, and the lower half part of the positioning block is square. The upper half part is designed into a semicircular shape, so that the material space is saved, and the overall weight of the checking fixture is reduced.
Furthermore, a wear-resistant bushing is arranged between the positioning block and the pipe positioning pin. The pipe positioning pin and the positioning block can be prevented from being damaged by back-and-forth friction through the wear-resistant bushing.
Furthermore, the top of the support is an inclined plane, and the included angle between the inclined plane and the horizontal plane is 5-80 degrees. The top is designed into an inclined plane to be better matched with the pipe, so that the detection is convenient.
Further, the base, the support and the pressing plate are all made of No. 45 steel. The manufacturing cost of the checking fixture is saved by manufacturing No. 45 steel.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is an assembly view of the bearing positioning block of FIG. 1;
FIG. 3 is an assembly view of the standard block and the pressure block of FIG. 1;
FIG. 4 is a schematic drawing of a base;
FIG. 5 is a top view of the base;
fig. 6 is the utility model discloses examine a mounting diagram.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the base 10, the slot 11, the support 20, the support groove 21, the standard block 30, the elbow groove 31, the pressure plate 40, the positioning block 50, the wear-resistant bushing 51, the pipe positioning pin 52, the pipe joint 53, the pipe 60 and the bolt 70.
Example 1 is substantially as shown in figures 1 to 3 of the accompanying drawings: the utility model provides an nonstandard return bend class size measurement examines utensil, the on-line screen storage device comprises a base, the support, the standard block, the briquetting, the locating piece, the base is irregular shape, the base is equipped with the bar slot, support the latter half design be with slot clearance fit's T shape, the support top is the inclined plane, contained angle between inclined plane and the horizontal plane is 5 ~ 80, the inclined plane both ends are equipped with the support recess, standard block and support recess clearance fit, the standard block is the crisscross shape with the support, the standard block is the H shape, the standard block top is equipped with the return bend recess. The top of the standard block is provided with a threaded hole, the pressing block is L-shaped, and the pressing block is positioned above the standard block and is in threaded connection with the standard block. The tube is fixed by the matching of the pressing block and the standard block, and the tube can be properly corrected by the design.
The support includes middle part support and afterbody support, and the locating piece is located afterbody support top and the locating piece passes through threaded connection with the afterbody support, and the locating piece is the crisscross shape with the afterbody support, and the locating piece is equipped with two, and the locating piece first is semi-circular, and the lower half is square fixed block, and the locating piece upper end is equipped with the through-hole, and the design has wear-resisting bush between two locating piece through-holes, is equipped with the pipe locating pin in the bush, is equipped with the coupling.
In order to realize the size inspection after the bending of various similar pipes, the utility model discloses a measure and examine utensil and design through following step.
The first step is as follows: and (4) making a three-dimensional diagram of the pipe in three-dimensional software by using the pipe design diagram. And then selecting two sections with the largest sum of the two adjacent sections in the pipe as reference surfaces, namely XOY surfaces, and if the two sections are selected to cause that the height difference between the Z axis and the XOY surfaces is too large and is not beneficial to the design of the support of the checking tool, comprehensively considering, and selecting the shorter two adjacent sections as the XOY surfaces.
The second step is that: after the XOY surface is determined, the XOY surface is used as a reference surface to perform offset to establish a reference surface X1O1Y1The offset distance is 20-100mm based on the overall height and is ensured to be from the lowest point of the pipe to X1O1Y1The distance is not less than 10 mm. With X1O1Y1The base is drawn, and the weight and the size of the base are reduced as much as possible according to needs so as to save the manufacturing cost, as shown in fig. 4.
The third step: as shown in fig. 4 and 5, the vertical direction to X1O1Y1The surface draws slots for the support to insert by taking the projection of each section of the pipe on the base as a boundary, the width of each slot is the same, the length of each slot is determined according to the projection length of each section of the pipe and is not greater than the projection of each section as shown in figure 5. For both ends of the pipe, the outward deflection is 50-100mm, based on the corresponding slots of the end pipe sections, creating a strip-shaped groove parallel to the slots for end support mounting.
The fourth step: in a direction perpendicular to X through the tube projection line1O1Y1The surface establishes a sketch reference surface of each projection section, a support of each section of the pipe is drawn on each sketch reference surface, the lower half part of the support is designed to be T-shaped, the lower half part of the support is in clearance fit with a slot of a corresponding section of the base, the upper part of the support is W-shaped, namely two grooves are formed and matched with a standard block, the top of the support is parallel to the corresponding section of the pipe, and the distance L between the support and the center of the pipe is determined according to the width H of a cross rod of the standard block and the radius R of the pipe (L is H + R).
The fifth step: the tail parts of the two ends of the pipe are placed on the standard blocks of the tail support, and the positioning blocks are arranged on the tail support through bolts at the positions which are about 80mm away from the tail end of the pipe. The positioning block is internally provided with a wear-resistant bush in which a pipe positioning pin is arranged.
And a sixth step: and selecting 2-3 standard blocks positioned on the middle support, and installing a pressing plate on the standard blocks through threads to fix the pipe. The assembly view of the elbow and the checking fixture is shown in fig. 6.
The method comprises the following steps of carrying out positioning measurement on the displacement of a pipe in a space by establishing a base, a support and a standard block, and measuring the axial positions of two ends of the pipe by a positioning pin; the checking fixture is designed according to the theoretical size of the pipe, the allowable manufacturing tolerance of the pipe is comprehensively considered, the tolerance of the checking fixture for measuring the bent pipe can be controlled by adjusting the groove width of the standard block, the measuring precision of the checking fixture can reach +/-0.2, and the product requirement is completely met.
The tail support, the positioning block, the standard block and the pipe positioning pin can be used as a tool for assembling and spot-welding the pipe assembly. When the elbow needs to be connected into the elbow joint, the elbow joint is inserted into the pipe joint positioning pin, and the pipe joint and the tail end of the elbow can be subjected to spot welding at the moment.
The gauge is simple in design structure, the components except for national standard parts can be made of low-price common carbon steel, and the gauge is low in manufacturing cost, short in manufacturing period and easy to assemble. By the method, similar pipeline part detection tools can be designed, and the requirement for measuring the size of the pipeline part can be met. The checking fixture can be used as a spot welding tool during assembly of the assembly besides being used as a checking fixture.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a nonstandard return bend class size measurement examines utensil which characterized in that: including base, support, standard block, locating piece, the support is located the base top to the base can be dismantled with the support and be connected, and the standard block is located the support top and the standard block can be dismantled with the support and be connected, and the standard block top is equipped with the return bend recess, and the locating piece can be dismantled with the support and be connected, is equipped with the through-hole in the locating piece, is equipped with the pipe locating pin in the through-hole.
2. The non-standard bent pipe size measuring gauge according to claim 1, characterized in that: the pressing plate is positioned above the standard block and is in threaded connection with the standard block.
3. The non-standard bent pipe size measuring gauge according to claim 1, characterized in that: the upper half part of the positioning block is semicircular, and the lower half part of the positioning block is square.
4. The non-standard bent pipe size measuring gauge according to claim 3, characterized in that: and a wear-resistant bushing is arranged between the positioning block and the pipe positioning pin.
5. The non-standard bent pipe size measuring gauge according to claim 1, characterized in that: the top of the support is an inclined plane, and the included angle between the inclined plane and the horizontal plane is 5-80 degrees.
6. The non-standard bent pipe size measuring gauge according to claim 2, characterized in that: the base, the support and the pressing plate are all made of No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808829.8U CN213515354U (en) | 2020-11-27 | 2020-11-27 | Nonstandard elbow size measurement testing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808829.8U CN213515354U (en) | 2020-11-27 | 2020-11-27 | Nonstandard elbow size measurement testing fixture |
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| Publication Number | Publication Date |
|---|---|
| CN213515354U true CN213515354U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022808829.8U Active CN213515354U (en) | 2020-11-27 | 2020-11-27 | Nonstandard elbow size measurement testing fixture |
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| CN (1) | CN213515354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701585A (en) * | 2021-07-16 | 2021-11-26 | 贵州航飞精密制造有限公司 | Universal aeroengine external pipeline space size detection and setting device |
-
2020
- 2020-11-27 CN CN202022808829.8U patent/CN213515354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701585A (en) * | 2021-07-16 | 2021-11-26 | 贵州航飞精密制造有限公司 | Universal aeroengine external pipeline space size detection and setting device |
| CN113701585B (en) * | 2021-07-16 | 2023-09-29 | 贵州航飞精密制造有限公司 | Device for detecting and setting space size of external pipeline of general aeroengine |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A non-standard bending pipe size measurement tool Granted publication date: 20210622 Pledgee: Guiyang Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: GUIZHOU HANGFEI PRECISION MANUFACTURING Co.,Ltd. Registration number: Y2024520000001 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |