CN110031204A - Antifatigue test fixture - Google Patents
Antifatigue test fixture Download PDFInfo
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- CN110031204A CN110031204A CN201910407205.4A CN201910407205A CN110031204A CN 110031204 A CN110031204 A CN 110031204A CN 201910407205 A CN201910407205 A CN 201910407205A CN 110031204 A CN110031204 A CN 110031204A
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- 238000012360 testing method Methods 0.000 title claims abstract description 139
- 230000002929 anti-fatigue Effects 0.000 title claims abstract description 61
- 230000000694 effects Effects 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Antifatigue test fixture provided by the invention, is related to antifatigue the field of test technology.The antifatigue test fixture includes driver, extensible member, fixed pressing part and activity pressing part.Driver is connect with extensible member, and extensible member is connect with activity pressing part, and fixed pressing part and activity pressing part relative spacing are arranged.Fixed pressing part is used to fix one end of test sample, and activity pressing part is used to fix the other end of test sample.Activity pressing part can be under the drive of extensible member close to or far from fixed pressing part movement, to push and pull test sample.The antifatigue test fixture structure is simple, easy to operate, using flexible, can efficiently complete the antifatigue test of test sample, high-efficient, versatility is good.
Description
Technical field
The present invention relates to antifatigue the field of test technology, in particular to a kind of antifatigue test fixture.
Background technique
Currently, the plates such as soft board, Rigid Flex in electronic product using more and more, electronic product is to flexible board area
The requirement of the bending resistance in domain is also higher and higher.If bending resistance can meet product demand, entire mould group will lead to
It scraps, economic loss is big, and can seriously affect customer experience.
Therefore, it is necessary to carry out antifatigue test resistant to bending, especially retractility mould group to plate before factory, it is necessary into
The antifatigue test of the flexible bending of row.Existing test device is only applicable to torsion test mostly or extremely rolls over crooked test, does not have
There is the antifatigue test function of flexible bending.
Summary of the invention
The purpose of the present invention includes providing a kind of antifatigue test fixture, is able to achieve the flexible board area of soft board or Rigid Flex
The antifatigue test of flexible bending in domain, testing efficiency is high, easy to use, can effectively intercept bad products factory, it is good to promote product
Rate.
It is that it is realized by adopting the following technical scheme that the present invention, which improves its technical problem,.
A kind of antifatigue test fixture provided by the invention, including driver, extensible member, fixed pressing part and activity pressing
Part.The driver is connect with the extensible member, and the extensible member is connect with the activity pressing part, the fixed pressing part with
The activity pressing part relative spacing setting.The fixed pressing part is used to fix one end of test sample, the activity pressing
Part is used to fix the other end of the test sample.The activity pressing part can under the drive of the extensible member close to or far from
The fixed pressing part movement, to push and pull the test sample.
Further, the extensible member includes cam mechanism and push-pull shaft, and the cam mechanism is connect with the driver,
One end of the push-pull shaft is connect with the cam mechanism, and the other end is connect with the activity pressing part.
Further, the cam mechanism includes cam and linking arm, the output end company of the cam and the driver
It connects, the linking arm is connect with the cam, and the push-pull shaft and the linking arm are hinged.
Further, the push-pull shaft includes the first linkage section, the second linkage section and adjusting rod, one end of the adjusting rod
It is threadedly coupled with first linkage section, the other end is threadedly coupled with second linkage section, and the adjusting rod is for adjusting institute
State the distance between the first linkage section and second linkage section.
The one end of first linkage section far from the adjusting rod is connect with the cam mechanism, and second linkage section is remote
One end from the adjusting rod is connect with the activity pressing part.
Further, the fixed pressing part includes hold-down support and the first briquetting, and first briquetting is mounted on described
On hold-down support, first briquetting and the hold-down support are for clamping the test sample.
Further, the hold-down support includes main frame, precompressed crossbeam and pre- tabs, and the pre- tabs is set to the master
Body frame extends close to the side of the activity pressing part, and towards the direction of the activity pressing part.The precompressed crossbeam is set to
The top of the pre- tabs described pre-folds on piece for conforming to the test sample precompressed.
Further, the hold-down support further includes pre- press, and the pre- press is set to the main frame close to institute
The side of activity pressing part is stated, and is extended towards the direction of the activity pressing part；The pre- press and the pre- tabs are flat
Row setting, the side positioned at the pre- tabs far from the precompressed crossbeam.
Further, the activity pressing part includes movable bearing support and the second briquetting, and second briquetting is mounted on described
On movable bearing support, second briquetting and the movable bearing support are for clamping the test sample.
Further, the movable bearing support is equipped with connecting bracket, and the extensible member is connect with the connecting bracket.
It further, further include rack, the rack is equipped with linear guide, and the movable bearing support is mounted on the straight line
It can move on guide rail and along the linear guide.
Antifatigue test fixture provided by the invention have the following aspects the utility model has the advantages that
Antifatigue test fixture provided by the invention, fixed pressing part are used to fix one end of test sample, activity pressing
Part is used to fix the other end of test sample.Activity pressing part moves reciprocatingly under the drive of driver and extensible member, to push away
Test sample is drawn, so that the circulation action that test sample is stretched, bent, realizes antifatigue test.The antifatigue test is controlled
Have easy to operate, testing efficiency height, can effectively intercept bad products, the quality of raising factory product.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram at the first visual angle of the antifatigue test fixture that the specific embodiment of the invention provides；
Fig. 2 is a kind of structural schematic diagram of the test sample for the antifatigue test fixture that the specific embodiment of the invention provides；
Fig. 3 is the structural schematic diagram at the second visual angle of the antifatigue test fixture that the specific embodiment of the invention provides；
Fig. 4 is the motion principle schematic diagram of the extensible member for the antifatigue test fixture that the specific embodiment of the invention provides；
Fig. 5 is the second briquetting of the antifatigue test fixture that the specific embodiment of the invention provides and a kind of company of movable bearing support
Connect structural schematic diagram；
Fig. 6 is a kind of structural schematic diagram of the hold-down support for the antifatigue test fixture that the specific embodiment of the invention provides.
Icon: the antifatigue test fixture of 100-；101- rack；103- linear guide；105- handrail；110- driver；
111- cam；113- linking arm；115- cam mechanism；120- extensible member；121- push-pull shaft；The first linkage section of 123-；124-
Two linkage sections；125- adjusting rod；The first hinge hole of 1231-；The second hinge hole of 1241-；140- fixes pressing part；141- first is pressed
Block；150- hold-down support；151- main frame；The pre- tabs of 152-；The pre- press of 153-；155- precompressed crossbeam；156- first is bent
Space；157- second bends space；160- activity pressing part；161- movable bearing support；The first elastic component of 1611-；1613- pivot joint
Axis；163- connecting bracket；164- fixed plate；165- link block；166- connecting rod；The second briquetting of 170-；171- first end；
173- the second end；191- start button；192- stop button；193- reset button；194- display screen；200- test sample；
210- fixing end；230- test zone；The first bending section of 231-；The second bending section of 233-；235- third bending section.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings or product of the present invention using when the orientation or positional relationship usually put, or
Person is the orientation or positional relationship that those skilled in the art usually understand, is merely for convenience of description of the present invention and simplification of the description,
Rather than the equipment or element of indication or suggestion meaning must have a particular orientation, is constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
" first " of the invention, " second " etc., are only used to distinguish between description, have no special meaning.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
It is connected directly, it can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Fig. 1 is the structural schematic diagram at the first visual angle of the antifatigue test fixture 100 that the specific embodiment of the invention provides, and is asked
Referring to Fig.1.
Antifatigue test fixture 100 provided in an embodiment of the present invention, including rack 101 and the drive being mounted in rack 101
Dynamic device 110, extensible member 120, fixed pressing part 140 and activity pressing part 160.Driver 110 is connect with extensible member 120, is stretched
Part 120 is connect with activity pressing part 160, and fixed pressing part 140 is arranged with 160 relative spacing of activity pressing part.Fixed pressing part
140 for fixing one end of test sample 200, and activity pressing part 160 is used to fix the other end of test sample 200.Activity pressure
Component 160 can move under the drive of extensible member 120 close to or far from fixed pressing part 140, to push and pull test sample 200, make
Test sample 200 back and forth stretched, bending action.It is tired that the antifatigue test fixture 100 can be used for resisting for flexible circuit board
Labor test, to improve the factory yield of flexible circuit board.Certainly, it is not limited to that, can be used for the soft of Rigid Flex
The antifatigue test of plate part.
Fig. 2 is that a kind of structure of the test sample 200 for the antifatigue test fixture 100 that the specific embodiment of the invention provides is shown
It is intended to, referring to figure 2..Specifically, test sample 200 with soft board, i.e., for flexible circuit board, the both ends of flexible circuit board are non-
Bent area, i.e. fixing end 210, both ends are separately fixed on jig；Middle section is bent area, i.e., antifatigue test zone 230.
In the antifatigue test of flexible circuit board, the test zone 230 of flexible circuit board is back and forth stretched, bending action, when
When bending flexible circuit board, flexible circuit board can be bent to Z-shape structure, as shown in Fig. 2, zigzag configuration includes the first bending section
231, the second bending section 233 and third bending section 235.
Referring to Fig. 1, fixed pressing part 140 includes hold-down support 150 and the first briquetting 141, the first briquetting 141 is mounted on
On hold-down support 150, a fixing end 210 of holding test samples 200 is used between the first briquetting 141 and hold-down support 150.
Activity pressing part 160 includes movable bearing support 161 and the second briquetting 170, and the second briquetting 170 is mounted on movable bearing support 161, and second
Another fixing end 210 of holding test samples 200 is used between briquetting 170 and movable bearing support 161.First briquetting, 141 position
It is corresponding with the position of the second briquetting 170, setting is spaced between the first briquetting 141 and the second briquetting 170, stayed gap is for holding
Set the test zone 230 of test sample 200.
Fig. 3 is the structural schematic diagram at the second visual angle of the antifatigue test fixture 100 that the specific embodiment of the invention provides, figure
The motion principle schematic diagram of the extensible member 120 of the 4 antifatigue test fixtures 100 provided for the specific embodiment of the invention, please refers to
Fig. 3 and Fig. 4.Extensible member 120 includes push-pull shaft 121 and cam mechanism 115, and driver 110 is connect with cam mechanism 115, cam
Mechanism 115 is connect with one end of push-pull shaft 121, and the other end of push-pull shaft 121 is connect with movable bearing support 161.Driver 110 starts
Energy band moving cam mechanism 115 rotates, and the rotation of cam mechanism 115 drives push-pull shaft 121 to move back and forth, to drive movable bearing support
161 and movable bearing support 161 on the second briquetting 170 move back and forth back and forth together, make the second briquetting 170 far from or close to the first pressure
Block 141.When the second briquetting 170 is moved close to the first briquetting 141, the test zone 230 of test sample 200 is bent, when
When two briquettings 170 are moved far from the first briquetting 141, the test zone 230 of test sample 200 is stretched.In activity pressing part 160
During moving back and forth, the test zone 230 of test sample 200 is repeatedly stretched, is bent, and realizes antifatigue test.
In the present embodiment, driver 110 uses rotating electric machine.Cam mechanism 115 includes cam 111, linking arm 113 and protects
Shield (not shown), cam 111 are set on the output shaft of driver 110, and linking arm 113 is mounted on cam 111, linking arm
113 connect with push-pull shaft 121.Driver 110 is rotated with moving cam 111, is mounted on the linking arm 113 on cam 111 with convex
Wheel 111 rotates together, and push-pull shaft 121 and activity pressing part 160 is driven to move reciprocatingly together.Optionally, cam 111, which is set to, protects
In shield, protective cover plays protective action to cam 111, prevents the foreign matters such as dust, particle from falling into cam 111.
The entire length of push-pull shaft 121 is adjustable, in order to adjust the extreme position that activity pressing part 160 can reach.
Specifically, push-pull shaft 121 include the first linkage section 123, the second linkage section 124 and adjusting rod 125, the one of the first linkage section 123
End is equipped with the first hinge hole 1231, and the other end is equipped with internal screw thread.One end of second linkage section 124 is equipped with the second hinge hole 1241,
The other end is equipped with internal screw thread.The both ends of adjusting rod 125 are equipped with external screw thread, and the external screw thread is respectively and in the first linkage section 123
Screw thread, the second linkage section 124 internal screw thread match.First linkage section 123 is equipped with one end of the first hinge hole 1231 by the
One hinge hole 1231 is set on linking arm 113, realizes that the first linkage section 123 and linking arm 113 are hinged, the first linkage section 123
The other end connect with the threaded one end of adjusting rod 125.One end of second linkage section 124 passes through the second hinge hole 1241 and activity
Support 161 is hinged, and the other end is threadedly coupled with the other end of adjusting rod 125.First linkage section 123 and the second linkage section 124 are logical
Toning pole 125 connects, and respectively with adjusting rod 125 using being threadedly coupled, can adjust push-pull shaft 121 by adjusting rod 125
Entire length, it is final to adjust test sample 200 during the test to adjust the mobile extreme position of movable bearing support 161
Suffered drawing, pressure, i.e. bending degree and level of stretch.Certainly, be not limited to that, the entire length of push-pull shaft 121 in addition to
Using above-mentioned screw thread regulative mode, other structures can also be used.For example, push-pull shaft 121 is multisection type sleeve socket structure, phase
It may be implemented to slide relatively between adjacent two sleeves, to adjust the entire length of push-pull shaft 121.By opposite sliding by push-pull shaft
After 121 entire length regulates, sleeve is fixed using fasteners such as screw or pins, prevents sleeve in reciprocatory movement
Middle displacement.It in addition, there are also other length adjustment modes, can be used for adjusting the entire length of push-pull shaft 121, do not make here specific
It limits.
Optionally, connecting bracket 163, connecting bracket are equipped with close to one end of the second linkage section 124 on movable bearing support 161
163 include fixed plate 164 and two link blocks 165 being oppositely arranged in fixed plate 164, fixed plate 164 and movable bearing support 161
It is fixedly connected, connecting rod 166 is equipped between two link blocks 165.Second hinge hole 1241 is set in connecting rod 166, is realized
Second linkage section 124 of push-pull shaft 121 is hinged with movable bearing support 161.In order to ensure each stress of test sample 200 is uniform
Property, rack 101 is equipped with linear guide 103, and movable bearing support 161 is mounted in linear guide 103, the edge in reciprocatory movement
Linear guide 103 is mobile, it is ensured that movable bearing support 161 is along straight reciprocating motion.
It should be noted that the linear reciprocating motion of movable bearing support 161 is realized in the present embodiment, using cam mechanism
115 and push-pull shaft 121 combination, in other embodiments, can also using slider-crank mechanism, rack and pinion assembly,
Straight line cylinder or feed screw nut's assembly etc. are realized, are not especially limited here.
Fig. 5 is the second briquetting 170 and movable bearing support for the antifatigue test fixture 100 that the specific embodiment of the invention provides
A kind of 161 attachment structure schematic diagram, please refers to Fig. 5.In the present embodiment, the second briquetting 170 is connect with movable bearing support 161.It can
Selection of land, using articulated manner, movable bearing support 161 is equipped with drive-connecting shaft 1613, and the second briquetting 170 is set on drive-connecting shaft 1613.
Second briquetting 170 includes opposite first end 171 and the second end 173, is used between first end 171 and movable bearing support 161
In the fixing end 210 of holding test samples 200.When applying downward external force to the second end 173, first end 171 is far from living
Dynamic support 161, so that form grasping part between first end 171 and movable bearing support 161, in order to by test sample 200
One end is inserted into the grasping part.When the external force of the second end 173 disappears, first end 171 will be surveyed close to movable bearing support 161
Test agent 200 clamps.Optionally, the first mounting groove is opened up in the second end 173, the second installation is opened up on movable bearing support 161
The position of slot, the position of the second mounting groove and the first mounting groove is corresponding, sets between the second briquetting 170 and movable bearing support 161
The first elastic component 1611 is set, one end of the first elastic component 1611 supports in the first mounting groove, and the other end is supported in the second installation
In slot.First elastic component 1611 can be compressed spring, in this way, can be after the disappearance of 173 external force of the second end, first end
Test sample 200 is clamped stronger by portion 171 under the restoring force effect of the first elastic component 1611.Certainly, and not only limit
In this, one end of test sample 200 is fixed, in addition to using above-mentioned method of clamping, can also by being bonded, be bolted or
The modes such as clamping, are not especially limited here.
Similarly, the first briquetting 141 uses hinged with hold-down support 150, between the first briquetting 141 and hold-down support 150
Another fixing end 210 for holding test samples 200.Its folder for clamping principle and the second briquetting 170 and movable bearing support 161
It is identical to hold principle, which is not described herein again.Certainly, fixed pressing part 140 to the fixation of test sample 200 can also by bonding,
It the modes such as is bolted or is clamped, be not especially limited here.
Optionally, hold-down support 150 is equipped with multiple first briquettings 141, and movable bearing support 161 is equipped with multiple second briquettings
170, the quantity of the first briquetting 141 is identical as the quantity of the second briquetting 170, and position is corresponding.It in this way can be simultaneously to multiple
Test sample 200 carries out antifatigue test, improves testing efficiency.In the present embodiment, the quantity and the second briquetting of the first briquetting 141
170 quantity is respectively six, it can while antifatigue test is carried out to six test samples 200.It can certainly be five
A, eight or ten etc., are not especially limited here.
In order to during the test, it is ensured that realize zigzag configuration bending, Z can be carried out to test sample 200 before experimental test
Font pre-folded.Also, it is provided with precompressed guide structure on hold-down support 150, realizes zigzag configuration in the process in order to test
Bending.
Fig. 6 is that a kind of structure of the hold-down support 150 for the antifatigue test fixture 100 that the specific embodiment of the invention provides is shown
It is intended to, please refers to Fig. 6.Optionally, hold-down support 150 includes main frame 151, precompressed crossbeam 155, pre- press 153 and pre-folds
Piece 152.Pre- press 153 and pre- tabs 152 are set to main frame 151 close to the side of movable bearing support 161, and towards close to activity
The direction of support 161 extends.Precompressed crossbeam 155 and main frame 151 are detachably connected, in the present embodiment, precompressed crossbeam 155
One end is connect by bolt with the side of main frame 151, and the other end of precompressed crossbeam 155 passes through the another of bolt and main frame 151
Side connection.Precompressed crossbeam 155 is arranged in parallel close to pre- tabs 152, and with pre- tabs 152, and precompressed crossbeam 155, which is located at, to be pre-folded
The top of piece 152 forms the first bending space 156 between precompressed crossbeam 155 and pre- tabs 152.After installing flexible circuit board,
Precompressed crossbeam 155 is pressed in the test zone 230 of flexible circuit board, is bonded a part of flexible circuit board with pre- tabs 152,
I.e. pre- tabs 152 and precompressed crossbeam 155 guide the first bending section 231 of flexible circuit board formation zigzag configuration.Due to precompressed crossbeam
155 both ends are connected by screw bolts with main frame 151 respectively, can be adjusted by bolt precompressed crossbeam 155 and pre- tabs 152 it
Between distance, so as to adjust the precompressed dynamics to test sample 200.
Pre- press 153 is located at pre- side of the tabs 152 far from precompressed crossbeam 155, pre- press 153 and pre- tabs 152
It is opposite to be arranged in parallel.The second bending space 157 is formed between pre- press 153 and pre- tabs 152.In compressed flexible circuit board
In the process, a part of flexible circuit board enters the second bending space 157, and pre- tabs 152 and pre- press 153 guide flexible electrical
Road plate forms the second bending section 233 and third bending section 235, makes flexible circuit board Z-shape structure bending during the test.
In addition, the antifatigue test fixture 100 further includes counter, operation button, display screen are additionally provided in rack 101
194 and stroke sensing chip.Operation button include the start button 191 being connect with driver 110, stop button 192 and reset by
Button 193, after pressing start button 191, driver 110, which powers on, to start operation.After pressing stop button 192, driver 110
Power supply is disconnected, it is out of service.Reset button 193 is pressed, movable bearing support 161 moves to initial position, is easily installed or dismantles survey
Test agent 200.Stroke sensing chip is mounted on movable bearing support 161, and stroke sensing chip is connect with counter, and counter is for recording
The reciprocating motion number of movable bearing support 161 to record the test number (TN) of antifatigue test, and test number (TN) real-time display is existed
On display screen 194.
Optionally, handrail 105, rack 101 easy to remove, so that the antifatigue test fixture 100 are additionally provided in rack 101
Use more flexible, more convenient operation.
Antifatigue test fixture 100 provided by the invention, working principle is as follows:
One fixing end 210 of test sample 200 is fixed between the first briquetting 141 and hold-down support 150, will be tested
Another fixing end 210 of sample 200 is fixed between the second briquetting 170 and movable bearing support 161.Precompressed crossbeam 155 is pressed in
On pre- tabs 152, precompressed is carried out to the test sample 200 on pre- tabs 152.Opening driver 110, driver 110 drive convex
Mechanism 115 to be taken turns to rotate, cam mechanism 115 drives linking arm 113 to rotate, and linking arm 113 drives push-pull shaft 121 to move reciprocatingly,
Push-pull shaft 121 drives movable bearing support 161 to move back and forth along linear guide 103 by connecting bracket 163.Test sample 200
The one end for being fixed on the second briquetting 170 and movable bearing support 161 is moved back and forth with movable bearing support 161, to realize test sample 200
Cyclic tension, compression.Due to being provided with precompressed crossbeam 155, pre- tabs 152 and pre- press 153, test sample 200 is in quilt
Z-shape structure bending, completes antifatigue testing experiment during compression.Movable bearing support 161 is equipped with stroke sensing chip, stroke
Sensing chip is connect with counter, is able to record the reciprocating motion number of movable bearing support 161, to record the test of antifatigue test
Number.
In conclusion antifatigue test fixture 100 provided by the invention have the following aspects the utility model has the advantages that
Antifatigue test fixture 100 provided by the invention drives cam mechanism 115 to rotate, thus band by driver 110
Dynamic push-pull shaft 121 and movable bearing support 161 move back and forth, and realize the anti-fatigue test of test sample 200, and can be simultaneously to more
A test sample 200 is tested, and test efficiency is high, the effective guarantee yield of factory product.Secondly, the antifatigue test is controlled
Tool 100 is applicable not only to the antifatigue test of flexible circuit board, Rigid Flex, can be used for the test of other products, fits
Wide with range, versatility is high.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of antifatigue test fixture, which is characterized in that including driver, extensible member, fixed pressing part and activity pressing part；
The driver is connect with the extensible member, and the extensible member is connect with the activity pressing part, the fixed pressing part
It is arranged with the activity pressing part relative spacing；The fixed pressing part is used to fix one end of test sample, the activity pressure
Component is used to fix the other end of the test sample；
The activity pressing part can move under the drive of the extensible member close to or far from the fixed pressing part, to push and pull
State test sample.
2. antifatigue test fixture according to claim 1, which is characterized in that the extensible member includes cam mechanism and pushes away
Pulling shaft, the cam mechanism are connect with the driver, and one end of the push-pull shaft is connect with the cam mechanism, the other end with
The activity pressing part connection.
3. antifatigue test fixture according to claim 2, which is characterized in that the cam mechanism includes cam and connection
Arm, the cam are connect with the output end of the driver, and the linking arm is connect with the cam, the push-pull shaft with it is described
Linking arm is hinged.
4. antifatigue test fixture according to claim 2, which is characterized in that the push-pull shaft include the first linkage section,
Second linkage section and adjusting rod, one end of the adjusting rod are threadedly coupled with first linkage section, the other end and described second
Linkage section is threadedly coupled, and the adjusting rod is for adjusting the distance between first linkage section and second linkage section；
The one end of first linkage section far from the adjusting rod is connect with the cam mechanism, and second linkage section is far from institute
The one end for stating adjusting rod is connect with the activity pressing part.
5. antifatigue test fixture according to claim 1, which is characterized in that the fixed pressing part includes hold-down support
With the first briquetting, first briquetting is mounted on the hold-down support, and first briquetting and the hold-down support are for pressing from both sides
Hold the test sample.
6. antifatigue test fixture according to claim 5, which is characterized in that the hold-down support includes main frame, pre-
Crossbeam and pre- tabs are pressed, the pre- tabs is set to the main frame close to the side of the activity pressing part, and towards the work
The direction of dynamic pressure component extends；The precompressed crossbeam is set to the top of the pre- tabs, for overlaying the test sample in advance
On piece is pre-folded described in being bonded to.
7. antifatigue test fixture according to claim 6, which is characterized in that the hold-down support further includes precompressed bottom
Plate, the pre- press are set to the main frame close to the side of the activity pressing part, and towards the activity pressing part
Direction extends；The pre- press is arranged in parallel with the pre- tabs, positioned at the pre- tabs far from the precompressed crossbeam one
Side.
8. antifatigue test fixture according to claim 1, which is characterized in that the activity pressing part includes movable bearing support
With the second briquetting, second briquetting is mounted on the movable bearing support, and second briquetting is with the movable bearing support for pressing from both sides
Hold the test sample.
9. antifatigue test fixture according to claim 8, which is characterized in that the movable bearing support is equipped with connection branch
Frame, the extensible member are connect with the connecting bracket.
10. antifatigue test fixture according to claim 8, which is characterized in that further include rack, the rack is equipped with
Linear guide, the movable bearing support are mounted in the linear guide and can move along the linear guide.
Priority Applications (1)
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