CN108051127B - Push-pull force test fixture for lamp strip - Google Patents
Push-pull force test fixture for lamp strip Download PDFInfo
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- CN108051127B CN108051127B CN201711457397.7A CN201711457397A CN108051127B CN 108051127 B CN108051127 B CN 108051127B CN 201711457397 A CN201711457397 A CN 201711457397A CN 108051127 B CN108051127 B CN 108051127B
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- pull force
- light bar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
The invention provides a push-pull force test fixture for a light bar, which comprises a base matched with a push-pull force test instrument, a plurality of grapples arranged on the side surface of the base and a lantern ring detachably connected with the bottom end of the base, wherein the grapples are arranged on the base; the lamp strip plate fixing device comprises a plurality of light strip plates, a plurality of grapples, a lantern ring and a push-pull force testing instrument, wherein the grapples are used for grasping lenses on the light strip plates, the pull force perpendicular to the direction of the light strip plates is tested through the push-pull force testing instrument, the lantern ring is used for sleeving the lenses on the lamp strip, and the push force parallel to the direction of the light strip plates is tested through. The test fixture provided by the invention can be adapted to various push-pull force test instruments to test the push-pull force perpendicular to and parallel to the light bar plate, the test process is simple and convenient, the test result is accurate, and the technical problems that in the prior art, when the push-pull force of the light bar is tested, due to the lack of a corresponding test fixture, the push-pull force test data in the horizontal direction of the light bar is inaccurate, and the push-pull force in the vertical direction of the light bar cannot be tested are effectively solved.
Description
Technical Field
The invention relates to the field of mechanical testing, in particular to a lamp strip push-pull force testing clamp.
Background
For the television backlight source composed of the light bars, because the lenses on the light bars are cured and bonded on the light bar plates through epoxy glue or UV glue, the reliability of glue of different brands is different, and the bonding degree of the lenses can be influenced by the using amount of the glue, the curing conditions, the positions of glue dispensing, the doping agent of the glue and other factors, the sampling test needs to be carried out on the bonding degree of the lenses and the light bar plates.
In order to test the adhesion degree of the lens and the light strip plate, two types of test instruments are mainly adopted at present, one type is a handheld push-pull device, the hand-held push-pull device is displayed through a pointer instrument panel or a digital code, one end of the hand-held push-pull device is provided with a hook, and the other end of the hand-held push-pull device is provided with a rigid straight rod. To the thrust of horizontal direction, can adopt hand-held type push-and-pull power ware to test, but the drawback is difficult to control artifical application of force direction in the horizontal direction, and the adhesive force of lens and lamp slat is too big, operates inconveniently. For a pulling force in a direction perpendicular to the light strip plate, the test cannot be performed because the lens can be firmly gripped without the clamp.
The other is a computer-controlled automatic test platform, and the instrument has the advantages of modular object-oriented programming, accurate control of test distance by using a stepper motor and simple operation. The bolts are adopted to clamp objects mutually, but the structure is very inconvenient for testing the push-pull force of the lamp strip lens, and the test cannot be carried out no matter the push force is parallel to the direction of the lamp strip plate or the pull force is perpendicular to the direction of the lamp strip plate.
At present, most manufacturers only adopt a handheld push-pull force device to test the push force data of the light bars, however, the manual force application direction is not easy to control, so that the precision and the accuracy of peak force recording fluctuate greatly, and the authenticity of the push-pull force data of the light bars of all the manufacturers cannot be accurately compared. Therefore, design a section can be used for testing lamp strip horizontal direction dynamics, and the general type anchor clamps that can test lamp strip vertical direction dynamics again become a necessary trend.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a test fixture for push-pull force of a light bar, which aims to solve the technical problems that when the push-pull force of the light bar is tested in the prior art, due to lack of a corresponding test fixture, the test data of the push-pull force of the light bar in the horizontal direction is inaccurate and the push-pull force of the light bar in the vertical direction cannot be tested.
The technical scheme of the invention is as follows:
a push-pull force test fixture for a light bar comprises a base matched with a push-pull force test instrument, a plurality of grapples arranged on the side face of the base and a lantern ring detachably connected with the bottom end of the base; the lamp strip plate fixing device comprises a plurality of lamp strip plates, a plurality of grapples, a lantern ring and a push-pull force testing instrument, wherein the grapples are used for grasping lenses on the lamp strip plates, the pull force perpendicular to the direction of the lamp strip plates is tested through the push-pull force testing instrument, the lantern ring is used for sleeving the lenses on the lamp strip plates, and the push force parallel to the direction of the lamp strip plates is tested through.
The lamp strip push-pull force test fixture is characterized in that the base comprises a cross structure, a cylinder and a threaded column, wherein the cross structure, the cylinder and the threaded column are integrally formed in sequence; the push-pull force testing instrument is matched with the cross structure, a plurality of grooves with the same number as the grapples are uniformly formed in the side face of the cylinder, a rotating shaft is arranged on each groove, a through hole is formed in the upper end of each grapple, the rotating shaft penetrates through the through holes to enable the grapples to rotate around the rotating shaft, and the lantern ring is in threaded connection with the threaded column.
The light bar push-pull force test fixture is characterized in that the cross structure comprises a transverse plate and a vertical plate which are integrally formed, and a pull ring is fixedly arranged at the top end of the vertical plate.
The lamp strip push-pull force test fixture is characterized in that a plurality of sliding grooves are formed in the positions, located between the pull ring and the transverse plate, of the two side faces of the vertical plate.
The light bar push-pull force test fixture is characterized in that threads are arranged on the side face of the cylinder and the outer side of the grapple, and the grapple is fixed in a groove in the side face of the cylinder through a nut.
The lamp strip push-pull force test fixture is characterized in that the bottom end of the cylinder is further provided with a plurality of separation blades extending to the outer side of the cylinder.
The lamp strip push-pull force test fixture is characterized in that a plurality of lugs with the same number as the grapples are uniformly arranged on the threaded column, the inner sides of the grapples are respectively provided with a lug, and the lugs on the threaded column are connected with the lugs on the corresponding grapples through a spring.
The lamp strip push-pull force test fixture is characterized in that the grapple is an L-shaped grapple, and a reinforcing rib is further arranged on the outer side of the long edge of the L-shaped grapple.
The lamp strip push-pull force test fixture is characterized in that the lantern ring comprises a long rod and a ring sleeve, wherein one end of the long rod is in threaded connection with the threaded column, and the ring sleeve is fixedly connected with the other end of the long rod and used for being sleeved with a lens on the lamp strip.
The lamp strip push-pull power test fixture, wherein, grapple is provided with 3.
Has the advantages that: the invention provides a push-pull force test fixture for a light bar, which comprises a base matched with a push-pull force test instrument, a plurality of grapples arranged on the side surface of the base and a lantern ring detachably connected with the bottom end of the base, wherein the grapples are arranged on the base; when the tensile force perpendicular to the direction of the light bar plate needs to be tested, the light bar plate is fixed, the lens on the light bar plate is grasped by the plurality of grapples, upward traction force is applied to the lens, the lens is separated from the light bar plate, and the tensile force perpendicular to the direction of the light bar plate is tested by a push-pull force testing instrument; when the thrust parallel to the direction of the light bar plate needs to be tested, the light bar plate is fixed, the lens on the light bar plate is sleeved through the lantern ring, upward traction force is applied to the lens, the lens is separated from the light bar plate, and the thrust parallel to the direction of the light bar plate is tested through a push-pull force testing instrument. The test fixture provided by the invention can be adapted to various push-pull force test instruments to test the push-pull force perpendicular to and parallel to the light bar plate, the test process is simple and convenient, the test result is accurate, and the technical problems that in the prior art, when the push-pull force of the light bar is tested, due to the lack of a corresponding test fixture, the push-pull force test data in the horizontal direction of the light bar is inaccurate, and the push-pull force in the vertical direction of the light bar cannot be tested are effectively solved.
Drawings
Fig. 1 is a schematic structural view of a push-pull force testing fixture for a light bar according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of a base of a push-pull force testing fixture for a light bar according to a preferred embodiment of the invention.
Fig. 3 is a schematic structural view of a grapple according to a preferred embodiment of the push-pull test fixture for a light bar of the present invention.
Fig. 4 is a schematic structural view of a collar of a light bar push-pull force test fixture according to a preferred embodiment of the invention.
Fig. 5 is a diagram illustrating a state of the lamp strip push-pull force test fixture in use for testing a pull force perpendicular to a direction of the lamp strip plate.
Fig. 6 is a diagram illustrating a state of the lamp strip push-pull force test fixture in use for testing a pushing force in a direction parallel to the lamp strip plate.
Detailed Description
The invention provides a lamp strip push-pull force test fixture, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2 and 5-6, the push-pull force testing fixture for a light bar provided by the present invention includes a base 10 adapted to a push-pull force testing instrument 01, a plurality of hooks 20 disposed on a side surface of the base, and a collar 30 detachably connected to a bottom end of the base; the plurality of grapples 20 are used for grasping the lens 03 on the light bar plate 02, the pull force perpendicular to the direction of the light bar plate 02 is tested through a push-pull force testing instrument 01, the lantern ring 30 is used for sleeving the lens 03 on the light bar plate 02, and the push force parallel to the direction of the light bar plate 02 is tested through the push-pull force testing instrument 01.
Particularly, most manufacturers test the push-pull force of the light bar plate only by using a handheld push-pull force tester, and due to the lack of corresponding test fixtures, the test data of the push-pull force of the light bar in the horizontal direction is inaccurate, and the push-pull force of the light bar in the vertical direction cannot be tested.
In order to solve the technical problem, the invention provides a lamp strip push-pull force test fixture which comprises a base matched with a push-pull force test instrument, a plurality of grapples arranged on the side surface of the base and a lantern ring detachably connected with the bottom end of the base, wherein the grapples are arranged on the base; the grapple is used for grasping lenses on the light bar plate, the pull force perpendicular to the direction of the light bar plate is tested through the push-pull force testing instrument, the lantern ring is used for sleeving the lenses on the light bar, and the push force parallel to the direction of the light bar plate is tested through the push-pull force testing instrument, so that the technical problems that the push-pull force testing data of the light bar in the horizontal direction is inaccurate and the push-pull force perpendicular to the light bar cannot be tested in the existing light bar push-pull force testing scheme are solved.
Further, in this embodiment, the base 10 includes a cross structure 40, a cylinder 50, and a threaded post 60 with threads at the bottom end; the push-pull force testing instrument is matched with the cross structure, a plurality of grooves 70 with the same number as the grapples are uniformly formed in the side face of the cylinder, a rotating shaft 80 is arranged on each groove, a through hole 90 is formed in the upper end of each grapple, the rotating shaft penetrates through the through holes to enable the grapples to rotate around the rotating shaft, and the lantern ring 30 is in threaded connection with the threaded column 60.
Particularly, be provided with the slot that is used for installing the grapple on the base, the quantity of grapple is the same with the quantity of slot, and the quantity of slot sets up according to actual needs, sets up 2 at least, and is preferred, and the slot is 3, is 120 evenly distributed, and in the same way, the quantity of grapple also is provided with 3. All be provided with a pivot on the slot, the grapple upper end all is provided with a perforation, and the pivot passes the perforation and makes the grapple rotate around the pivot, when testing the pulling force of perpendicular to light slat direction, grasps the lens on the light slat through the grapple, and further, for the convenience of grapple snatchs lens, the grapple can revolute the pivot and outwards rotate certain angle so that the grapple can hook into lens smoothly, to lens apply ascending traction force, make lens and light slat take place to separate, the preferred, the grapple is provided with a fenestrate and serves and still is provided with the grapple of being convenient for and rotates the arc slope around the axle, cuts out an arc slope on the grapple for the grapple can rotate 30 angle range.
Further, in this embodiment, the cross structure includes a horizontal plate and a vertical plate that are integrally formed, a pull ring 100 is fixedly disposed at the top end of the vertical plate, and a plurality of sliding grooves 110 are further disposed on two side surfaces of the vertical plate and located between the pull ring and the horizontal plate.
The cross structure is used for clamping a push-pull force test instrument and can be adapted to three test instruments, the first test instrument is a traditional handheld chest developer, and a hook is inserted through a pull ring on the cross structure; the second type is a flat plate type clamping chest expander, the clamping mode only depends on friction force for clamping and can only be used for push-pull force within a range of several kilograms, a plurality of sliding grooves are further arranged on the two side surfaces of the vertical plate and positioned between the pull ring and the transverse plate, the number of the sliding grooves is more than 2, preferably, the number of the sliding grooves is 3, the sliding grooves are used for preventing skid and increasing the friction force, and the flat plate type clamping chest expander can conveniently carry out tension test; the third is that the computer controls the automatic test platform, after the cross structure is placed in the clamping structure of the test platform for fixing, the test platform is controlled to test the push-pull force of the light strip plate, and the test force range of the automatic test platform can reach dozens of kilograms.
Further, in this embodiment, the side of the cylinder and the outside of the grapple are provided with threads, and the grapple is fixed in the groove of the side of the cylinder by a nut 120.
Specifically, the side face of the cylinder is provided with threads, the outer side of the grapple is provided with threads matched with the threads of the cylinder, when the grapple grabs the lens on the lamp strip plate, the rotating shaft arranged in the groove of the cylinder is easy to be pulled outwards to cause fracture, in order to prevent the rotating shaft from being fractured and prolong the service life of the clamp, the grapple and the cylinder are fixed by arranging a nut matched with the threads on the side face of the cylinder, so that the outward pulling force applied to the rotating shaft is reduced.
Further, in this embodiment, the bottom end of the cylinder is further provided with a plurality of blocking pieces 130 extending to the outside of the cylinder.
The bottom end of the cylinder is provided with a plurality of baffle plates extending to the outer side of the cylinder, in order to achieve a better effect of preventing the nut from excessively screwing in, at least 2 baffle plates are arranged, preferably, the number of the baffle plates is 3, and in order to ensure that the structure is firm, the baffle plates and the cylinder base are integrally formed.
Furthermore, in this embodiment, the threaded post is uniformly provided with a plurality of lugs 140, the number of which is the same as that of the grapple, the inner sides of the grapples are provided with a lug, and the lugs on the threaded post are connected with the corresponding lugs on the grapple through a spring 150.
Particularly, be provided with the hangers on the screw post, the quantity of hangers sets up more than 2, preferably, be 120 evenly provided with 3 hangers around the non-screw region of screw post, the grapple inboard is provided with the hangers the same with screw post quantity, the spring be used for with screw post and grapple between be connected, it is concrete, the both ends of spring are connected with the hangers on the screw post and the hangers on the grapple inboard respectively, the setting of spring has realized the grapple to screw post center elastic shrinkage, the grapple is changeed firmly and is grabbed the lens on the light slat, prevent that the light slat is not hard up and when the grapple is not grabbed the lens, prevent rocking of grapple.
Further, referring to fig. 3, in the present embodiment, the grapple is an "L" shaped grapple, and a reinforcing rib 160 is further disposed on an outer side of a long side of the "L" shaped grapple.
The shape of the grapple of the present invention can be selected according to the shape of the captured lens, and preferably, the grapple is selected to be L-shaped, the leg of the L-shaped grapple is more easily hooked into the gap between the lens and the light strip plate and keeps the stability between the lens and the grapple, and the present invention also enhances the strength of the grapple by providing a reinforcing rib on the outer side of the long side of the grapple in order to improve the life span of the grapple.
Further, referring to fig. 4, in this embodiment, the collar includes a long rod 170 having one end screwed to the threaded post, and a ring sleeve 180 fixedly connected to the other end of the long rod for engaging with a lens on the light bar.
Specifically, referring to fig. 5 and 6, the lantern ring of the present invention is detachable, when a tensile force perpendicular to the direction of the light bar plate needs to be tested, the lantern ring is detached, the lens on the light bar plate is grabbed by the grapple to perform a tensile force test perpendicular to the direction of the light bar plate, when a thrust force parallel to the direction of the light bar plate needs to be tested, the lantern ring is installed, the lens on the light bar plate is sleeved by the lantern ring to perform a thrust force test parallel to the direction of the light bar plate, the lantern ring of the present invention is composed of a long rod and a ring sleeve, one end of the long rod is in threaded connection with the threaded post on the base, and the other end of the long rod is fixedly connected.
In summary, the invention provides a lamp strip push-pull force test fixture, which comprises a base adapted to a push-pull force test instrument, a plurality of grapples arranged on the side surface of the base, and a lantern ring detachably connected with the bottom end of the base; when the tensile force perpendicular to the direction of the light bar plate needs to be tested, the light bar plate is fixed, the lens on the light bar plate is grasped by the plurality of grapples, upward traction force is applied to the lens, the lens is separated from the light bar plate, and the tensile force perpendicular to the direction of the light bar plate is tested by a push-pull force testing instrument; when the thrust parallel to the direction of the light bar plate needs to be tested, the light bar plate is fixed, the lens on the light bar plate is sleeved through the lantern ring, upward traction force is applied to the lens, the lens is separated from the light bar plate, and the thrust parallel to the direction of the light bar plate is tested through a push-pull force testing instrument. The test fixture provided by the invention can be adapted to various push-pull force test instruments to test the push-pull force perpendicular to and parallel to the light bar plate, the test process is simple and convenient, the test result is accurate, and the technical problems that in the prior art, when the push-pull force of the light bar is tested, due to the lack of a corresponding test fixture, the push-pull force test data in the horizontal direction of the light bar is inaccurate, and the push-pull force in the vertical direction of the light bar cannot be tested are effectively solved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A push-pull force test fixture for a light bar is characterized by comprising a base matched with a push-pull force test instrument, a plurality of grapples arranged on the side surface of the base and a lantern ring detachably connected with the bottom end of the base; the plurality of grapples are used for grasping lenses on the light bar plate, a pull force in a direction perpendicular to the light bar plate is tested through a push-pull force testing instrument, the lantern ring is used for sleeving the lenses on the light bar plate, and a push force in a direction parallel to the light bar plate is tested through the push-pull force testing instrument;
the base comprises a cross structure, a cylinder and a threaded column with threads arranged at the bottom end, wherein the cross structure, the cylinder and the threaded column are sequentially and integrally formed; the push-pull force testing instrument is matched with the cross structure, a plurality of grooves with the same number as the grapples are uniformly formed in the side face of the cylinder, a rotating shaft is arranged on each groove, a through hole is formed in the upper end of each grapple, the rotating shaft penetrates through the through holes to enable the grapples to rotate around the rotating shaft, and the lantern ring is in threaded connection with the threaded column.
2. The light bar push-pull force test fixture of claim 1, wherein the cross structure comprises a transverse plate and a vertical plate which are integrally formed, and a pull ring is fixedly arranged at the top end of the vertical plate.
3. The light bar push-pull force test fixture of claim 2, wherein a plurality of sliding grooves are formed in the two side faces of the vertical plate and between the pull ring and the transverse plate.
4. The light bar push-pull force test fixture of claim 1, wherein the side of the cylinder and the outside of the grapple are threaded, and the grapple is secured within a groove in the side of the cylinder by a nut.
5. The light bar push-pull force test fixture of claim 4, wherein the bottom end of the cylinder is further provided with a plurality of blocking pieces extending to the outside of the cylinder.
6. The light bar push-pull force test fixture as claimed in claim 1, wherein a plurality of lugs are uniformly arranged on the threaded column, the number of the lugs is equal to that of the grapples, a lug is arranged on each of the inner sides of the grapples, and the lugs on the threaded column are connected with the lugs on the corresponding grapples through springs.
7. The push-pull force test fixture for the light bar according to any one of claims 1 to 6, wherein the grapple is an "L" -shaped grapple, and a reinforcing rib is further provided on an outer side of a long side of the "L" -shaped grapple.
8. The light bar push-pull force test fixture of any one of claims 1-6, wherein the collar comprises a long rod having one end threadedly coupled to the threaded post, and a collar fixedly coupled to the other end of the long rod for engaging a lens on the light bar.
9. The light bar push-pull force test fixture of any one of claims 1-6, wherein 3 grapples are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457397.7A CN108051127B (en) | 2017-12-28 | 2017-12-28 | Push-pull force test fixture for lamp strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457397.7A CN108051127B (en) | 2017-12-28 | 2017-12-28 | Push-pull force test fixture for lamp strip |
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| CN108051127A CN108051127A (en) | 2018-05-18 |
| CN108051127B true CN108051127B (en) | 2020-02-07 |
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| CN201711457397.7A Active CN108051127B (en) | 2017-12-28 | 2017-12-28 | Push-pull force test fixture for lamp strip |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113757240B (en) * | 2021-11-08 | 2022-01-25 | 龙旗电子(惠州)有限公司 | Terminal pressure maintaining jig and pressure maintaining method |
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| CN102628776A (en) * | 2012-03-20 | 2012-08-08 | 威力盟电子(苏州)有限公司 | Push-pull effort test machine |
| CN205280498U (en) * | 2015-12-14 | 2016-06-01 | 昆山名威精密工业有限公司 | Limit tester that hard lamp tape welding point of LED was broken |
| CN205910190U (en) * | 2016-08-23 | 2017-01-25 | 西安公路研究院 | Rating of merit test device is kept apart to pitch isolating agent |
| CN107464490A (en) * | 2017-09-11 | 2017-12-12 | 广东省职业病防治院 | Hand-transmitted vibration studies analog machine |
| CN206788010U (en) * | 2017-04-14 | 2017-12-22 | 京东方科技集团股份有限公司 | A kind of propulsion test device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1419935A (en) * | 1973-08-07 | 1975-12-31 | Cit Alcatel | Apparatus for checking the tightness of wound connections |
| CN102628776A (en) * | 2012-03-20 | 2012-08-08 | 威力盟电子(苏州)有限公司 | Push-pull effort test machine |
| CN205280498U (en) * | 2015-12-14 | 2016-06-01 | 昆山名威精密工业有限公司 | Limit tester that hard lamp tape welding point of LED was broken |
| CN205910190U (en) * | 2016-08-23 | 2017-01-25 | 西安公路研究院 | Rating of merit test device is kept apart to pitch isolating agent |
| CN206788010U (en) * | 2017-04-14 | 2017-12-22 | 京东方科技集团股份有限公司 | A kind of propulsion test device |
| CN107464490A (en) * | 2017-09-11 | 2017-12-12 | 广东省职业病防治院 | Hand-transmitted vibration studies analog machine |
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| CN108051127A (en) | 2018-05-18 |
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Effective date of registration: 20200527 Address after: 518057 floor a13-16, tower a, Skyworth building, gaoxinnan 1st Road, Nanshan District, Shenzhen City, Guangdong Province Co-patentee after: NANJING SKYWORTH FLAT PANEL DISPLAY TECHNOLOGY Co.,Ltd. Patentee after: SHENZHEN SKYWORTH-RGB ELECTRONIC Co.,Ltd. Address before: 518052, building 13-16, block A, SKYWORTH tower, Shennan Avenue, Shenzhen, Nanshan District, Guangdong Patentee before: SHENZHEN SKYWORTH-RGB ELECTRONIC Co.,Ltd. |