CN212674403U - Test fixture and test device - Google Patents
Test fixture and test device Download PDFInfo
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- CN212674403U CN212674403U CN202021326517.7U CN202021326517U CN212674403U CN 212674403 U CN212674403 U CN 212674403U CN 202021326517 U CN202021326517 U CN 202021326517U CN 212674403 U CN212674403 U CN 212674403U
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Abstract
A test fixture comprises a body; and at least one counterweight; the surface of the body is provided with at least one assembling part, and the balancing weight is detachably arranged on the assembling part; at least one installation part is further formed in the surface of the body, and the installation part is used for detachably installing the workpiece. The application of test fixture can simulate real machine state and replace real machine to drop test, compare in the real machine of traditional direct use and test, the disability rate is high and problem with high costs when having solved real machine test. The application simultaneously provides a testing device with the testing jig.
Description
Technical Field
The utility model relates to an industrial test field especially relates to a test fixture and testing arrangement.
Background
In the industrial research and development production process, in order to test whether the designed workpiece meets the actual use requirement, the workpiece needs to be subjected to a drop test; for example: whether the newly designed camera module applied to the mobile phone has enough anti-falling capability or not is tested, and a plurality of falling experiments are required to be carried out on the finished mobile phone.
In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: the workpiece is tested by using a real machine, and the real machine is inevitably damaged by falling for many times; and the current electronic product has high updating speed, the position arrangement of internal components is changed frequently, the rejection rate of real machine experiments is high, and a large amount of cost is consumed.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a testing fixture and a testing apparatus capable of simulating and replacing a real machine for a drop test, so as to solve the above problems.
A test fixture for drop testing a workpiece, the test fixture comprising:
a body; and
at least one weight block;
the surface of the body is provided with at least one assembling part, and the balancing weight is detachably arranged on the assembling part;
at least one installation part is further formed in the surface of the body, and the installation part is used for detachably installing the workpiece.
The test fixture is used for installing the balancing weight and the workpiece respectively through the assembling portion and the installing portion which are arranged on the body. The test fixture can simulate and replace a real machine to carry out drop test, and compared with the traditional method of directly using the real machine to carry out test, the test fixture solves the problems of high rejection rate and high cost of the real machine test.
In some embodiments, the mounting portion and the mounting portion are both recesses formed in the surface of the body.
The assembly part and the installation part are groove-shaped, which is helpful for the installation of the balancing weight or the workpiece without the bulge of the body, so that the test fixture can better simulate the shape of a real machine.
In some embodiments, the test fixture further comprises:
the first locking piece is used for fixing the balancing weight in the assembling part.
The balancing weight is fixed through the first locking piece, the position of the balancing weight is located, and the balancing weight is prevented from being separated in the drop test process.
In some embodiments, a first screw hole is formed in the fitting portion;
the first locking part is a screw and penetrates through the balancing weight to fix the balancing weight to the assembling part.
The counterweight block is fixed by matching the screw with the screw hole, so that the fixing effect is stable and the disassembly is convenient.
In some embodiments, the number of the assembling portions is multiple, and the multiple assembling portions are symmetrically arranged on two opposite surfaces of the body;
the first screw hole penetrates through two opposite surfaces of the body and is simultaneously communicated with the two symmetrically arranged assembling parts;
the first locking piece penetrates through the two balancing weights and the two symmetrically-arranged assembling portions simultaneously, and the two balancing weights are fixed simultaneously.
Through making the screw run through the body for two balancing weights just can be fixed to a screw, have simplified operating procedure.
In some embodiments, the test fixture further comprises:
the cover plate is detachably connected with the body and covers at least one mounting part and at least one workpiece.
The cover plate covers the installation part and the workpiece, so that the workpiece is more stably installed in the installation part, and the workpiece is prevented from being separated in the drop test process.
In some embodiments, the test fixture includes two mounting portions and two cover plates, and the two mounting portions and the two cover plates are disposed on two opposite surfaces of the body.
Two installation parts and cover plates are arranged on two sides of the body, so that one test fixture can test two groups of workpieces simultaneously, the detection efficiency is improved, and the two sides of the body are favorable for keeping the center of gravity of the test fixture not to shift.
In some embodiments, the test fixture further comprises:
and the second locking piece is used for fixing the cover plate.
The cover plate is fixed through the second locking piece, the position of the cover plate is located, and the cover plate is prevented from being separated in the drop test process.
In some embodiments, a second screw hole is formed in the mounting portion;
the second locking part is a screw and penetrates through the cover plate to fix the cover plate on one side of the mounting part.
The cover plate is fixed by matching the screws with the screw holes, so that the obtained fixing effect is stable, and the cover plate is convenient to disassemble.
This application provides a testing arrangement simultaneously, includes:
the test fixture in any one of the above embodiments;
the falling plate is horizontally arranged and is used for colliding with the test fixture; and
and the adjusting mechanism is arranged on one side of the falling plate and used for adjusting the height and the angle of the test fixture.
The utility model provides a test fixture and testing arrangement pass through the shape of the true machine of body simulation, can change test fixture's weight and focus through set up the balancing weight on the body, through the different work pieces of installation department mountable on the body, and then realized replacing the true machine to carry out drop test's function to the work piece. Compare in the current true quick-witted test of direct use, the true machine of multiple specification can be simulated to this application, and has solved and has used true machine to be used for the easy condemned problem of true machine when testing, has saved a large amount of costs. The application also has the characteristics of simple structure, small and exquisite design and convenient use.
Drawings
Fig. 1 is a schematic perspective view of a test fixture according to an embodiment of the present application.
Fig. 2 is an exploded view of the test fixture shown in fig. 1.
Fig. 3 is an exploded view of the test fixture shown in fig. 1 from another angle.
Description of the main elements
Fitting part 12
Receiving portion 144
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 and fig. 2, the present application provides a test fixture 100 for performing a drop test on a workpiece 200, wherein the test fixture 100 includes a body 10 and at least one weight block 20.
The body 10 has at least one mounting portion 12 formed on a surface thereof, and the weight member 20 is detachably mounted to the mounting portion 12. By increasing or decreasing the number of the weight blocks 20 on the body 10, the overall weight of the test fixture 100 can be changed.
The surface of the body 10 is further opened with at least one mounting portion 14, and the mounting portion 14 is used for detachably mounting the workpiece 200.
When the test fixture 100 is used, the workpiece 200 is firstly installed in the installation part 14, and then the proper number of balancing weights 20 are selected according to the required test weight, so that the workpiece 200 can be subjected to the drop test.
The test fixture 100 of the present application is used for mounting the weight member 20 and the workpiece 200 through the mounting portion 12 and the mounting portion 14 provided on the body 10. The test fixture 100 can simulate the real use state of the real machine and replace the real machine to perform drop test, and compared with the traditional method of directly using the real machine to perform test, the test fixture solves the problems of high rejection rate and high cost in the test of the real machine.
Referring to fig. 3, the main body 10 of the present embodiment is designed according to the shape of the mobile phone to simulate the falling scene of the mobile phone, so as to test the falling stability of the workpiece 200 installed in the mobile phone.
It is understood that in other embodiments of the present application, the shape of the body 10 is not limited to a mobile phone, but may also be a tablet computer, a smart wearable device, a Portable Multimedia Player (PMP), a digital camera, and the like.
Further, in the present embodiment, the workpiece 200 is a camera module applied to a mobile phone, and the test fixture 100 performs a drop test on the camera module.
It is to be understood that in other embodiments of the present application, the workpiece 200 is not limited to the camera module, and may also be an electronic component such as a linear motor, a Near field communication chip (NFC chip), a dust screen, a flash lamp, or a distance sensor.
Further, in the present embodiment, seven mounting portions 12 are respectively formed on two opposite sides of the mobile phone-shaped body 10, and the two opposite sides are two main front and back appearance surfaces of the mobile phone, both of which are substantially square and are rounded at corners. The assembling portion 12 is substantially a square groove, and the weight balancing blocks 20 are installed in different assembling portions 12, so that the overall weight and the gravity center position of the test fixture 100 can be changed, mobile phones of different specifications can be simulated, and the falling stability of the workpiece 200 in mobile phones of different specifications can be tested.
It will be appreciated that the plurality of weights 20 are of the same size, but may vary in weight. When the balancing weight 20 is used, the balancing weight 20 with proper weight and quantity is selected according to the weight of the simulated real machine.
Specifically, seven mounting portions 12 are provided on two sides of the body 10, four mounting portions 12 are provided on each side at the center of the side and are symmetrically disposed with respect to the body 10, and the other three mounting portions 12 are provided on each side at three corners of the side.
Further, the weight member 20 is substantially square, the weight members 20 have the same weight, and the size of the weight member 20 is adapted to the assembling portion 12.
Further, the testing fixture 100 further includes a first locking member 30, and the first locking member 30 is used for fixing the weight block 20 in the assembling portion 12.
Further, the first locking member 30 is a screw, a through hole is formed in the middle of the counterweight block 20, a first screw hole 122 is further formed in the assembling portion 12, and the first locking member 30 is screwed into the first screw hole 122 through the through hole penetrating through the counterweight block 20, so that the counterweight block 20 is fixed in the assembling portion 12.
Specifically, each weight 20 and the mounting portion 12 corresponds to two first locking members 30, i.e., two screws for fixing one weight 20.
Further, in some embodiments, eight symmetrically disposed mounting portions 12 are disposed at the middle of two opposite surfaces of the body 10, and a first screw hole 122 formed inside the mounting portion 12 penetrates the body 10, that is, the first screw hole 122 penetrates two opposite surfaces of the body 10 and simultaneously communicates with two symmetrically disposed mounting portions 12. In the locking process, a screw penetrates through the two balancing weights 20 and the first screw hole 122, so that the two balancing weights 20 on the two sides of the body 10 can be fixed at the same time.
In addition, the three corners of the body 10 opposite to each other have six assembling portions 12, and because of the incomplete symmetrical design, the first screw hole 122 penetrating the body 10 is not opened, and when the assembling portion 12 needs to be installed with the counterweight 20, the installation can be realized by other methods, for example: the weight 20 is adhered in the fitting portion 12 by an adhesive tape.
Further, the mount portion 14 is used for mounting the workpiece 200, and the workpiece 200 can be taken out from the mount portion 14. In the present embodiment, since the workpiece 200 is a camera module, the mounting portion 14 is a groove corresponding to the main board of the mobile phone.
Further, an accommodating portion 144 is further disposed in the mounting portion 14, the accommodating portion 144 is used for accommodating a lens group protruding from the camera module, and the accommodating portion 144 corresponds to a position where the camera module is mounted on the mobile phone.
It is understood that in other embodiments of the present application, the receiving portion 144 may be omitted in the case where the workpiece 200 is not a camera module.
Further, the test fixture 100 further includes a cover plate 40, wherein the cover plate 40 is detachably connected to the body 10 and covers the at least one workpiece 200 and the at least one mounting portion 14.
Specifically, the cover plate 40 is used for covering the workpiece 200 to fix the position of the workpiece 200, and simulate the real scene of the workpiece 200 when being installed on a mobile phone and the mobile phone falls.
Further, the testing fixture 100 further includes a second locking member 50, and the second locking member 50 is used for fixing the cover plate 40 on the body 10 to position the cover plate 40.
Specifically, in the present embodiment, the second locking member 50 is a screw, a second screw hole 142 is further formed in the mounting portion 14, and a through hole is further formed in the cover plate 40. The screws pass through the through holes of the cover plate 40 and are screwed into the second screw holes 142, so as to fix the cover plate 40 to the body 10.
Furthermore, four corners of each cover plate 40 are respectively provided with a through hole, and four corners inside the mounting portion 14 are respectively provided with a second screw hole 142 corresponding to four second locking members 50, that is, four screws are used to fix one cover plate 40.
Further, in the present embodiment, the number of the mounting portions 14 and the cover plates 40 is two, two sets of the mounting portions 14 and the cover plates 40 are disposed on two opposite surfaces of the body 10, and the two mounting portions 14 are respectively provided with the second screw holes 142 and the receiving portions 144.
It can be understood that the test fixture 100 can test two workpieces 200 at the same time, and the two workpieces are respectively disposed in the two mounting portions 14, so as to improve the testing efficiency of the test fixture 100 in a single drop test.
Furthermore, two sets of mounting portions 14 and cover plates 40 are disposed on two sides of the body 10 and are close to the edge of the body 10, so that the center of gravity of the whole test fixture 100 is not excessively deviated from the center of the body 10, and the phenomenon of "heavy head and light foot" during testing can be avoided. When the end of the test fixture 100 is heavier, the weight member 20 is only required to be installed in the mounting portion 12 near the end.
It should be noted that, in the present embodiment, the number of the workpieces 200 to be tested is one, that is, the test fixture 100 only tests one workpiece 200, and one of the mounting portions 14 is empty.
It is understood that in other embodiments of the present application, the implementation manners of the first locking member 30 and the second locking member 50 are not limited to the screws in the above embodiments, and the fixing effect can also be achieved by other manners, such as: the first locking member 30 is a hook connected to the body 10, and the weight 20 is placed at the position of the assembling portion 12 and then the weight 20 is locked by the hook, so as to fix the position relationship between the weight 20 and the body 10.
It is understood that the first and second screw holes 122 and 142 may be omitted when the first and second locking members 30 and 50 are not fixed by means of screws.
It is understood that in the case where the mount portion 14 can directly fix the workpiece 200, for example: workpiece 200 is a chip and is secured by insertion directly into mounting portion 14, in which case cover 40 may be omitted.
The present application also provides a testing apparatus, which includes the testing fixture 100, a drop plate (not shown) and an adjusting mechanism (not shown).
Specifically, the falling plate is horizontally disposed, and the test fixture 100 falls downward from above the falling plate and collides with the falling plate. The adjusting mechanism is disposed on one side of the falling plate and is used for adjusting the height and angle of the test fixture 100 relative to the falling plate.
When the weight balancing device is used, the workpiece 200 is firstly installed in the installation part 14, the cover plate 40 covers the workpiece 200 and one side, far away from the body 10, of the installation part 14, and then the proper assembly part 12 is selected on the body 10 and the balancing weight 20 with proper weight is installed on the body 10 according to the weight and the gravity center of a simulated real machine. After the test fixture 100 simulates a real machine, the test fixture 100 is mounted on the adjusting mechanism, and the adjusting mechanism can drive the test fixture 100 to move to adjust the height and the orientation angle of the test fixture 100. The test fixture 100 is then released and the test fixture 100 falls freely and impacts the drop-off plate below. After the height and the angle are adjusted to perform a plurality of tests, the workpiece 200 can be taken out to judge the condition of the workpiece 200, so that the falling stability of the workpiece 200 can be obtained.
It is understood that in some embodiments, the testing apparatus further includes a pressure sensor (not shown) connected to the dropping plate for measuring the pressure or pressure intensity applied to the dropping plate when the testing fixture 100 collides with the dropping plate.
The test fixture 100 and the test device of the application simulate the shape of a real machine through the body 10, can change the weight and the gravity center of the test fixture 100 by arranging the balancing weight 20 on the body 10, can install different workpieces 200 through the installation part 14 on the body 10, and further realize the function of replacing the real machine to drop the workpieces 200. Compare in the current true quick-witted test of direct use, the true machine of multiple specification can be simulated to this application, and has solved and has used true machine to be used for the easy condemned problem of true machine when testing, has saved a large amount of costs. The application also has the characteristics of simple structure, small and exquisite design and convenient use.
In addition, those skilled in the art should recognize that the above embodiments are illustrative only, and not limiting, and that suitable modifications and variations to the above embodiments are within the spirit and scope of the invention as claimed.
Claims (10)
1. A test fixture for drop testing a workpiece, the test fixture comprising:
a body; and
at least one weight block;
the surface of the body is provided with at least one assembling part, and the balancing weight is detachably arranged on the assembling part;
at least one installation part is further formed in the surface of the body, and the installation part is used for detachably installing the workpiece.
2. The test fixture of claim 1, wherein the mounting portion and the mounting portion are both recesses formed in the surface of the body.
3. The test fixture of claim 1, wherein the test fixture further comprises:
the first locking piece is used for fixing the balancing weight on the assembling part.
4. The testing fixture of claim 3, wherein the mounting portion has a first screw hole formed therein;
the first locking part is a screw and penetrates through the balancing weight to fix the balancing weight to the assembling part.
5. The testing fixture of claim 4, wherein the number of the assembling portions is plural, and the plural assembling portions are symmetrically disposed on two opposite surfaces of the body;
the first screw hole penetrates through two opposite surfaces of the body and is simultaneously communicated with the two symmetrically arranged assembling parts;
the first locking piece penetrates through the two balancing weights and the two symmetrically-arranged assembling portions simultaneously, and the two balancing weights are fixed simultaneously.
6. The test fixture of claim 1, wherein the test fixture further comprises:
the cover plate is detachably connected with the body and covers at least one mounting part and at least one workpiece.
7. The test fixture of claim 6, wherein the test fixture includes two of the mounting portions and two of the cover plates, and the two mounting portions and the two cover plates are disposed on opposite sides of the body.
8. The test fixture of claim 6, further comprising:
and the second locking piece is used for fixing the cover plate.
9. The test fixture of claim 8, wherein the mounting portion has a second threaded hole formed therein;
the second locking part is a screw and penetrates through the cover plate to fix the cover plate on one side of the mounting part.
10. A test apparatus, comprising:
the test fixture of any one of claims 1-9;
the falling plate is horizontally arranged and is used for colliding with the test fixture; and
and the adjusting mechanism is arranged on one side of the falling plate and used for adjusting the height and the angle of the test fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021326517.7U CN212674403U (en) | 2020-07-08 | 2020-07-08 | Test fixture and test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021326517.7U CN212674403U (en) | 2020-07-08 | 2020-07-08 | Test fixture and test device |
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| Publication Number | Publication Date |
|---|---|
| CN212674403U true CN212674403U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021326517.7U Active CN212674403U (en) | 2020-07-08 | 2020-07-08 | Test fixture and test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390599A (en) * | 2021-07-29 | 2021-09-14 | 业成科技（成都）有限公司 | Falling ball test fixture and method |
| CN114089164A (en) * | 2021-11-23 | 2022-02-25 | 东莞记忆存储科技有限公司 | GPU card test fixture with adjustable balance weight and balance weight adjusting method |
-
2020
- 2020-07-08 CN CN202021326517.7U patent/CN212674403U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390599A (en) * | 2021-07-29 | 2021-09-14 | 业成科技（成都）有限公司 | Falling ball test fixture and method |
| CN113390599B (en) * | 2021-07-29 | 2022-11-29 | 业成科技（成都）有限公司 | Falling ball test fixture and method |
| CN114089164A (en) * | 2021-11-23 | 2022-02-25 | 东莞记忆存储科技有限公司 | GPU card test fixture with adjustable balance weight and balance weight adjusting method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510000 Shenzhou Road, science and Technology Town, Guangzhou high tech Industrial Development Zone, Guangdong 7 Patentee after: Guangzhou delta Imaging Technology Co.,Ltd. Address before: 510000 Shenzhou Road, science and Technology Town, Guangzhou high tech Industrial Development Zone, Guangdong 7 Patentee before: O-FILM IMAGE TECHNOLOGY (GUANGZHOU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |