CN114414221B - Acceleration test device and method for surface-mounted component - Google Patents
Acceleration test device and method for surface-mounted component Download PDFInfo
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- CN114414221B CN114414221B CN202111455891.6A CN202111455891A CN114414221B CN 114414221 B CN114414221 B CN 114414221B CN 202111455891 A CN202111455891 A CN 202111455891A CN 114414221 B CN114414221 B CN 114414221B
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- base
- movable carrier
- movable
- carrying disc
- upper cover
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000001133 acceleration Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000013585 weight reducing agent Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The application discloses table subsides components and parts acceleration test device, including base, upper cover, the base is connected with centrifugal test machine transmission, upper cover and base upper surface detachable fixed connection still include movable carrying disc, movable carrying disc's quotation is used for placing table subsides components and parts, the base upper surface is opened there is rectangular groove for hold movable carrying disc. The method for using the device is that the surface-mounted components are placed on a movable carrying disc; stacking a plurality of movable carrier plates for carrying the surface-mounted components together, wherein the movable carrier plate without the surface-mounted components is arranged on the uppermost layer; a movable carrying disc fixedly stacked together by rubber bands; put into the strip-shaped groove of the base, and one side of the disk surface faces the center of the base. The acceleration test can be carried out on the surface-mounted components with the quantity being tens of times higher than that of the conventional device at one time. And the stability of the device in the test process can be ensured. The working efficiency and the safety of the surface mounted component acceleration test are improved.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a device and a method for testing acceleration of a surface-mounted component.
Background
The acceleration test is a screening test which must be performed on a crystal component specified by the national army standard. In the test, centrifugal force generated by high-speed rotation acts on the components, and defective products are removed according to the detection of the sample after the test. At present, the acceleration test of the small-sized surface-mounted components is completed by means of an acceleration dial. The conventional acceleration dial is disc-shaped, a plurality of small grooves are uniformly distributed at the circumferential position (the radius of the circumference is called as centrifugal radius) with a certain fixed diameter, a surface-mounted product is placed in the small grooves, the acceleration dial is arranged on a centrifugal testing machine, and then an upper cover is covered, so that the acceleration test of the components can be performed. With the improvement of the reliability requirements of components, the magnitude of the required acceleration test is continuously increased, and in this case, the requirement can be met only by increasing the rotating speed or increasing the centrifugal radius, while the rotating speed of the centrifugal testing machine is limited, and only the centrifugal radius can be increased. The diameter of the inner cavity of the centrifugal testing machine is fixed, so that the diameter of the acceleration dial is limited, and after the centrifugal radius is increased, the number of components which can be placed on the acceleration dial is small, so that the testing efficiency is reduced, and the production efficiency of the conventional small-sized surface-mounted component acceleration testing disc is low.
Disclosure of Invention
The embodiment of the application provides an acceleration test device and method for surface-mounted components, which solve the problems of small quantity and low efficiency of the small-sized surface-mounted components processed by one-time acceleration test in the prior art.
The embodiment of the application also provides a surface-mounted component acceleration experimental device, which comprises a base and an upper cover, wherein the base is in transmission connection with a centrifugal testing machine, the upper cover is fixedly connected with the upper surface of the base in a detachable manner, the surface-mounted component acceleration experimental device further comprises a movable carrying disc, the disc surface of the movable carrying disc is used for placing the surface-mounted component, and the upper surface of the base is provided with a strip-shaped groove for accommodating the movable carrying disc.
Further, the rectangular groove is a plurality of, and rectangular groove perpendicular to base upper surface downwardly extending, and the central point is fixed with the base upper surface central point distance.
Preferably, the movable tray surface is rectangular, and the short side is a vertical side when the movable tray is placed in the rectangular groove.
Further, the width of the strip-shaped groove is the thickness of the movable carrier plates.
Further, the depth of the strip-shaped groove is smaller than the length of the short side of the movable carrying disc, the lower end of the upper cover is provided with a concave for accommodating the movable carrying disc, and the sum of the concave depth and the depth of the strip-shaped groove is slightly larger than the short side of the movable carrying disc.
Preferably, the upper plane and the lower plane of the base are provided with weight reducing grooves.
Preferably, the outer side of the base is provided with a concave buckle for facilitating taking and placing from the centrifugal testing machine.
Preferably, the upper cover is fixedly connected with the base through a mounting screw.
Preferably, the movable carrier plate is made of an antistatic plastic material.
The embodiment of the application also provides a method for testing the acceleration of the surface-mounted component, which comprises the following steps of:
placing the surface mount component on a movable carrier plate;
stacking a plurality of movable carrier plates for carrying the surface-mounted components together, wherein the movable carrier plate without the surface-mounted components is arranged on the uppermost layer;
a movable carrying disc fixedly stacked together by rubber bands;
put into the strip-shaped groove of the base, and one side of the disk surface faces the center of the base.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:
according to the method, acceleration tests can be carried out on a plurality of surface-mounted components at one time on the basis that the equipment load is not exceeded, and the number of products tested at one time is increased by tens of times compared with that of the existing device. And the stability of the device in the test process can be ensured. The device can improve the working efficiency of the surface-mounted component acceleration test and ensure the safety of the test.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a perspective view of an embodiment of the present application;
FIG. 2 is a perspective view of a base according to an embodiment of the present application;
FIG. 3 is a perspective view of a removable carrier tray according to an embodiment of the present application;
fig. 4 is a flowchart of a method for testing acceleration of a surface mount device.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
The invention relates to an acceleration experimental device for surface-mounted components, as shown in fig. 1, comprising a base 11 and an upper cover 13, wherein the base is in transmission connection with a centrifugal testing machine, the upper cover is in detachable fixed connection with the upper surface of the base, the acceleration experimental device further comprises a movable carrying disc 12, the disc surface of the movable carrying disc is used for placing the surface-mounted components, and the upper surface of the base is provided with a strip-shaped groove for accommodating the movable carrying disc.
As shown in FIG. 2, the plurality of elongated slots on the base extend downwards perpendicular to the upper surface of the base, so that the distance between the center point of the surface mounted component on the movable carrier plate and the center axis of the base is approximately the same, the distance between the center point of the surface mounted component and the center point of the upper surface of the base is fixed, the acceleration test of the surface mounted component is performed in a centrifugal tester, the speed of the centrifugal tester is limited, and the centrifugal radius of the surface mounted component is within a fixed range under the premise of fixed speed, so that the distance between the center point of the elongated slot and the center point of the upper surface of the base is fixed to be the centrifugal radius.
The movable carrying disc is rectangular, and when the movable carrying disc is placed in the rectangular groove, the short side is used as the vertical side. The width of the strip-shaped groove is 5 movable carrier discs. The depth of the strip-shaped groove is about 2/3 of the length of the short side of the movable carrying disc, so that the movable carrying disc can be stably placed in a test, the thickness of the base can be reduced, and the weight of the whole device is reduced. In order to accommodate the movable carrier plate entirely, the lower end of the upper cover is provided with a concave, the depth is about 1/3 of the depth of the movable carrier plate and is used for accommodating the upper end of the movable carrier plate, the sum of the concave depth and the depth of the strip-shaped groove is slightly larger than the short side of the movable carrier plate, and when the upper cover is combined with the base, the inner space is enough to accommodate.
The base is circular, and the diameter is about equal to the diameter of centrifugal test machine, so after the centrifugal test machine is put into to the base, take out comparatively difficultly, consequently set up the handle 113 of indent on the base, conveniently place the base in the wall body of centrifugal test machine.
The centrifugal testing machine has limited working load, in order to ensure that the weight of the whole device is lower than the upper limit of the working load of the centrifugal testing machine, the upper surface and the lower surface of the base are provided with weight reducing grooves, and the base is circular, so that the upper surface and the lower surface of the base are preferably provided with annular weight reducing grooves, and the weight can be reduced to a greater extent.
The upper cover is detachably and fixedly connected with the base, and the upper cover and the base are preferably fixedly connected by screws because the centrifugal testing machine needs to rotate at a high speed.
As shown in fig. 3, the movable carrier tray has a surface-mounted component placement groove 121 on the tray surface side for placing the surface-mounted component, and the movable carrier tray is placed in the elongated groove with the tray surface side facing the center of the base.
The movable carrier plate is injection molded from a non-metallic material to reduce the weight of the movable carrier plate, and is preferably made of an antistatic plastic material.
The upper cover is made of organic glass, so that the weight of the upper cover can be reduced, and the internal condition of the device can be observed at any time.
As shown in fig. 4, an acceleration test method for a surface mounted component, using the acceleration test device for a surface mounted component, includes the following steps:
step 41, placing the surface-mounted components on a movable carrying disc;
and placing the surface-mounted components in a surface-mounted component placing groove on the surface of the movable carrier plate.
Step 42, stacking a plurality of movable carrier plates for carrying the surface mount components together, wherein the uppermost layer is the movable carrier plate without the surface mount components;
after the surface-mounted component placing groove of one movable carrying disc is filled, the movable carrying disc of the other movable carrying disc is replaced for continuous placement, the movable carrying discs with the surface-mounted components placed are stacked together, the bottom surface of the movable carrying disc of the upper layer seals the disc surface of the movable carrying disc of the next layer, the surface-mounted components are prevented from leaving the surface-mounted component placing groove, and the movable carrying disc without the surface-mounted components is arranged at the uppermost layer and is only used for sealing the movable carrying disc of the next layer.
Step 43, fixing the stacked movable carrier plates by using rubber bands;
the movable carrying disc can be detachably fixed together by any method, and is preferably fixed by using rubber bands, so that the movable carrying disc is simple and convenient to detach.
Step 44, placing the plate into the strip-shaped groove of the base, and enabling one side of the plate surface to face the center of the base.
And placing the fixed stack of movable carrier plates into the strip-shaped groove of the base, covering the upper cover, starting the centrifugal testing machine, and starting to perform acceleration test on the surface-mounted components.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (9)
1. The surface-mounted component acceleration experiment device comprises a base and an upper cover, wherein the base is in transmission connection with a centrifugal testing machine, and the upper cover is in detachable fixed connection with the upper surface of the base;
the width of the strip-shaped groove is the thickness of the movable carrier plates.
2. The surface mount component acceleration testing device of claim 1, wherein the plurality of elongated grooves extend downward perpendicular to the upper surface of the base, and the center point is at a fixed distance from the center point of the upper surface of the base.
3. The surface mount component acceleration testing device of claim 2, wherein the movable carrier plate has a rectangular shape, and the short side is a vertical side when the movable carrier plate is placed in the elongated slot.
4. The surface mount component acceleration test apparatus according to any one of claims 1 to 3, wherein the depth of the elongated groove is smaller than the length of the short side of the movable carrier, the lower end of the upper cover has a recess for accommodating the movable carrier, and the sum of the depth of the recess and the depth of the elongated groove is slightly larger than the short side of the movable carrier.
5. The surface mount component acceleration test apparatus of claim 1, wherein the upper and lower base surfaces have weight reduction grooves.
6. The surface mount component acceleration test apparatus of claim 1, wherein the base has a concave clasp on the outside.
7. The surface mount component acceleration test apparatus of claim 1, wherein the upper cover is fixedly connected to the base by mounting screws.
8. The surface mount component acceleration testing device of claim 1, wherein the movable carrier plate is made of an antistatic plastic material.
9. The method for testing the acceleration of the surface-mounted component is characterized by comprising the following steps of:
placing the surface mount component on a movable carrier plate;
stacking a plurality of movable carrier plates for carrying the surface-mounted components together, wherein the movable carrier plate without the surface-mounted components is arranged on the uppermost layer;
a movable carrying disc fixedly stacked together by rubber bands;
put into the strip-shaped groove of the base, and one side of the disk surface faces the center of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455891.6A CN114414221B (en) | 2021-12-01 | 2021-12-01 | Acceleration test device and method for surface-mounted component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455891.6A CN114414221B (en) | 2021-12-01 | 2021-12-01 | Acceleration test device and method for surface-mounted component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114414221A CN114414221A (en) | 2022-04-29 |
| CN114414221B true CN114414221B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111455891.6A Active CN114414221B (en) | 2021-12-01 | 2021-12-01 | Acceleration test device and method for surface-mounted component |
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| Country | Link |
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| CN (1) | CN114414221B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201974186U (en) * | 2010-12-13 | 2011-09-14 | 华东光电集成器件研究所 | Flat package acceleration centrifugal test fixture of integrated circuit |
| CN104515690A (en) * | 2013-09-27 | 2015-04-15 | 西北机器有限公司 | Centrifugal testing machine for inertial control devices |
| CN207487709U (en) * | 2017-11-23 | 2018-06-12 | 西安微电子技术研究所 | Glass cover-plate PGA package images sensor acceleration centrifugal test fixture |
| CN212059393U (en) * | 2020-06-03 | 2020-12-01 | 广东欧可检测仪器有限公司 | Steady state acceleration centrifugal testing machine |
| CN214288820U (en) * | 2021-08-20 | 2021-09-28 | 西安环宇芯微电子有限公司 | Multifunctional clamp based on centrifugal testing machine |
-
2021
- 2021-12-01 CN CN202111455891.6A patent/CN114414221B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201974186U (en) * | 2010-12-13 | 2011-09-14 | 华东光电集成器件研究所 | Flat package acceleration centrifugal test fixture of integrated circuit |
| CN104515690A (en) * | 2013-09-27 | 2015-04-15 | 西北机器有限公司 | Centrifugal testing machine for inertial control devices |
| CN207487709U (en) * | 2017-11-23 | 2018-06-12 | 西安微电子技术研究所 | Glass cover-plate PGA package images sensor acceleration centrifugal test fixture |
| CN212059393U (en) * | 2020-06-03 | 2020-12-01 | 广东欧可检测仪器有限公司 | Steady state acceleration centrifugal testing machine |
| CN214288820U (en) * | 2021-08-20 | 2021-09-28 | 西安环宇芯微电子有限公司 | Multifunctional clamp based on centrifugal testing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114414221A (en) | 2022-04-29 |
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