CN209416539U - A kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated - Google Patents
A kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated Download PDFInfo
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- CN209416539U CN209416539U CN201822264382.5U CN201822264382U CN209416539U CN 209416539 U CN209416539 U CN 209416539U CN 201822264382 U CN201822264382 U CN 201822264382U CN 209416539 U CN209416539 U CN 209416539U
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Abstract
The utility model discloses a kind of devices of qualitative assessment conductive hairspring residual stress variation, it is characterised in that: the device includes pedestal, installs feed mechanism on the base, conductive hairspring fixture and strain induction rubber；Conductive hairspring fixture includes moveable jaw and stationary fixture, and moveable jaw is connected with feed mechanism, and stationary fixture is connected with strain induction rubber, and strain induction rubber is fixed on pedestal；Moveable jaw and stationary fixture clamp the both ends of conductive hairspring respectively, and rubber is having the same to change direction for conductive hairspring and strain induction.Conductive hairspring residual stress situation of change is quantitatively evaluated using the method for pre-stretching in the present apparatus, can be used for analyzing the effect that distinct methods eliminate conductive hairspring residual stress, while structure is simple, easy to use, high-efficient.
Description
Technical field
The utility model relates to a kind of devices of qualitative assessment conductive hairspring residual stress variation.
Background technique
Conductive hairspring is a kind of special conducting wire in inertia type instrument, and effect is realized between fixation member and movable part
Electrical connection provides electric energy input and signal output for internal movable part.Conductive hairspring is used in highly sophisticated device instrument
The main element of signal transmitting, conductive hairspring is in addition to the function that should meet transmission electric current, to reduce as far as possible to internal movable part
Part interferes torque, is also required to be designed not only thin but also soft, the conductive good, elasticity modulus of the material usually selected it is low and
And the lesser feature of size, frequently with the very thin copper wire of diameter.Conductive hairspring is extremely tiny, and operator can only be under the microscope
Various operations are carried out to conductive hairspring using tweezers.Because conductive hairspring is not only thin but also soft, this mechanical grip easily makes conductive hairspring
Flexible deformation occurs even to be permanently deformed；In addition, ought elapse any one of conductive hairspring two-end-point endpoint respectively makes in fact
When being now accurately positioned, another endpoint because the presence of frictional force be it is motionless, these can all be caused between conductive hairspring two-end-point
Distance deviates its original value, i.e. conductive hairspring shape changes, deviates its nature and generate internal stress；In addition, filling
Balance spring is fixed with the method for generalling use spot welding in the process, therefore the shape of balance spring can change.All factors above are all
Residual stress can be generated inside balance spring, and this residual stress will cause the disturbance torque to instrument, influence accuracy of instrument.It is special
It is not that the stress can also constantly change in use, to further influence the stability of instrument.
Since balance spring diameter is too small, common residual stress measuring method cannot be effectively measuring, such as boring method, X are penetrated
Line diffraction approach etc. is unable to measure conductive hairspring residual stress.The prior art had both been unable to measure the practical residual stress number of conductive hairspring
Value is also unable to characterize various residual stress minimizing technologies to the effect quality of conductive hairspring removal residual stress.
Utility model content
The purpose of this utility model is to provide one kind can quantitatively characterizing be various goes residual stress method to conductive hairspring
Effect after going residual stress accurately assesses the device of conductive hairspring internal residual stress variation.
To achieve the goals above, the utility model uses following technical scheme: a kind of qualitative assessment conductive hairspring is remaining
The device of stress variation, it is characterised in that: the device includes pedestal, installs feed mechanism on the base, conductive hairspring fixture
Rubber is incuded with strain；Conductive hairspring fixture includes moveable jaw and stationary fixture, and moveable jaw is connected with feed mechanism, fixed
Fixture is connected with strain induction rubber, and strain induction rubber is fixed on pedestal；Moveable jaw and stationary fixture are respectively due to clamping
One end of conductive hairspring, rubber is having the same to change direction with strain induction for conductive hairspring.
Further, strain induction rubber is block uniform in material and regular shape, clamping of the conductive hairspring in moveable jaw
Portion and conductive hairspring are conllinear in the clamping part of stationary fixture and the center of strain induction rubber；Substance uniformly refers to reality
That thinks in engineering is uniform, not the absolute uniform of mathematical meaning or microcosmic meaning.
Further, strain induction rubber includes rubber block and foil gauge, and foil gauge is set to the side of rubber block, rubber block
Uniform in material and regular shape.Rubber block deformation under the effect of external force, foil gauge incude the strain of rubber block.
Further, moveable jaw and stationary fixture respectively include respective briquetting, fixture supporting plate and reel, moveable jaw
Fixture supporting plate connect with spiral micrometer head by block, the fixture supporting plate of stationary fixture incudes rubber and connect with straining；Coiling
Wheel is mounted on respective fixture supporting plate, and briquetting is mounted on reel, and one end of conductive hairspring is fixed with corresponding reel,
Conductive hairspring winding and reel, briquetting are set to conductive hairspring from the position that reel is drawn, and briquetting is for clamping conductive hairspring.
That is, clamping part of the position that is contacted with conductive hairspring of briquetting as conductive hairspring.
Further, pedestal includes upper supporting plate, lower bottom base and support plate, and lower bottom base is fixedly connected with support plate, and upper supporting plate is logical
It crosses two strip holes to connect with support plate, can be adjusted according to the needs the height of upper supporting plate.
It further, is screwfeed mechanism into mechanism is crossed, screwfeed mechanism includes spiral micrometer head and block, and spiral is surveyed
Micro- head is mounted on upper supporting plate, and block is mounted in spiral micrometer head.The structure of spiral micrometer head is surveyed using the spiral of micrometer
The precision of micro- header structure, feeding is high, and the pulling force precision of application is controllable.
In conclusion when the utility model is used, the first height for regulating upper supporting plate as needed, then passes through fixture
Copper wire briquetting clamp conductive hairspring, it is then by the fixed conductive hairspring of upper reel and lower reel, conductive hairspring is exceptionally straight
And guarantee that conductive hairspring remains vertical state, then conductive hairspring is tensed by rotation sctew feeder, to conductive hairspring
Apply a tensile stress to simulate the residual stress of conductive hairspring, this analog residue stress can be surveyed by strain induction rubber
Out, Processing for removing is carried out to the residual stress of conductive hairspring later, after treatment measures place again according to strain induction rubber
The analog residue stress of conductive hairspring after reason, finally by front and back data comparison, the change of available conductive hairspring residual stress
Change situation.
The utility model has the beneficial effects that:
1, due to conductive hairspring and strain induction rubber serial connection, so acting on conductive hairspring and strain induction rubber
On drawing force it is identical, straining the strain of induction rubber surface by measurement, can to calculate the force value on strained rubber block big
It is small, and then obtain the stress inside conductive hairspring.Destressing side is applied to conductive hairspring in the case where conductive hairspring handles tensional state
Method, such as electric pulse advocate approach, so as to obtain before going residual stress and go conductive hairspring internal stress after residual stress to become
Change situation, thus to evaluate the effect that the conductive hairspring goes residual stress method.
2. reel can be by the rotation of reel so that conductive hairspring is stretched tight as a part of conductive hairspring fixture
Directly, extra conductive hairspring can be stored into reel, more convenient, quickly conductive hairspring can be made to be in vertical configuration
State.
3, pulling force is applied to conductive hairspring using screwfeed mechanism, the feed accuracy of spiral micrometer head is high, thus real
Existing high-precision control pulling force applies, and avoids overexerting.
4, conductive hairspring residual stress situation of change is quantitatively evaluated using the method for pre-stretching, can be used for analyzing not Tongfang
Method eliminates the effect of conductive hairspring residual stress, while structure is simple, easy to use, high-efficient.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the positive structure schematic of the utility model.
Fig. 3 is the side structure schematic diagram of the utility model.
Specific embodiment
In order to make those skilled in the art better understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described.
As shown in Figure 1-3, the device includes pedestal, the feed mechanism 6 being mounted on pedestal 1 and is answered at conductive hairspring fixture 9
Become induction rubber 2；Conductive hairspring fixture 9 includes moveable jaw 91 and stationary fixture 92, moveable jaw 91 and 6 phase of feed mechanism
Even, it is connected at the top of stationary fixture 92 and strain induction rubber 2, pedestal 1 is fixed in strain induction 2 bottom of rubber；Moveable jaw 91
Clamp the both ends of conductive hairspring 3, conductive hairspring 3 and the strain induction stress side having the same of rubber 2 respectively with stationary fixture 92
To.It ensure that conductive hairspring 3 and the strain induction stress size having the same of rubber 2, test strain induction rubber 2 can be passed through
The strain variation situation of side indirectly learns 3 internal stress situation of change of conductive hairspring.
In order to ensure strain induction rubber 2 can be accurately calculated in the strain variation situation of strain induction 2 side of rubber
On stress situation of change, strain induction rubber 2 is block uniform in material and regular shape in the present invention, and substance is uniform
It refers to thinking uniform in Practical Project, not the absolute uniform of mathematical meaning or microcosmic meaning, conductive hairspring 3 is can
The clamping part and conductive hairspring of dynamic fixture 91 are conllinear in the clamping part of stationary fixture 92 and the center of strain induction rubber 2,
This 3 points ensure that drawing force suffered on conductive hairspring and strain induction rubber 2 is identical in line.
Strain induction rubber includes rubber block and foil gauge 21, and foil gauge is set to the side of rubber block, rubber stock material
Uniform and regular shape.Rubber block deformation under the effect of external force, foil gauge incude the strain of rubber block.Incude the dynamometry of rubber
Principle is that foil gauge is bonded to the surface of induction rubber, acts on sense by the strain of measurement induction rubber surface to calculate
Answer the power on rubber.
In addition, moveable jaw 91 and stationary fixture 92 respectively include respective briquetting, fixture supporting plate and reel, it is movable to press from both sides
The fixture supporting plate 912 of tool 91 is connect by block 62 with spiral micrometer head 61, and the fixture supporting plate 922 of stationary fixture 92 and strain are felt
It answers and is connected at the top of rubber 2；Reel is mounted on respective fixture supporting plate, and briquetting is mounted on reel, and the two of conductive hairspring 3
End is respectively wound around on corresponding reel, and the briquetting on reel is set to conductive hairspring 3 from the position that reel is drawn, briquetting
For clamping conductive hairspring 3.
Preferably, moveable jaw 91 includes upper copper wire briquetting 911, upper fixture supporting plate 912 and upper reel 913, Gu
Clamp tool 92 includes lower copper wire briquetting 921, lower fixture supporting plate 922 and lower reel 923, first passes through the winding of reel 913 and leads
Electric balance spring 3, then 3 one end of conductive hairspring is clamped by upper copper wire briquetting 911, conductive hairspring 3 introduces after the extraction of upper reel 913
In lower reel 923, the other end of conductive hairspring 3 is also to first pass through lower reel 923 conductive hairspring 3 is wrapped in stationary fixture
It on 92, then is clamped by lower copper wire briquetting 921, tie point, conductive hairspring 3 and the lower copper of conductive hairspring 3 and upper copper wire briquetting 911
The tie point of silk briquetting 921 and the center of strain induction rubber 2 are conllinear, that is, this 3 points in same vertical straight line
On, it also ensures that the strain variation situation of strain induction 2 side of rubber in the present invention can be accurately calculated and answers
Become the stress situation of change on induction rubber 2.
Pedestal 1 includes upper supporting plate 4, lower bottom base 11 and support plate 12, and lower bottom base 11 is fixedly connected with support plate 12, upper supporting plate
4 are connect by two strip holes 13 with support plate 12, can be adjusted according to the needs the height of upper supporting plate.It is also set up in support plate 12
Have two in the vertical direction and the strip hole 13 that is parallel to each other, upper supporting plate 4 is installed on strip hole 13, upper supporting plate 4 can be along two
Strip hole 13 translates in the vertical direction, that is, upper supporting plate 4 is connect by two strip holes 13 with upper supporting plate 5, can basis
It needs to adjust the height of upper supporting plate 4 along two strip holes 13 and remains the level of upper supporting plate 4.
The assessment device of conductive hairspring residual stress variation further includes the feed mechanism 6 being mounted on pedestal 1, feed mechanism
6 be screwfeed mechanism, and screwfeed mechanism includes spiral micrometer head 61 and block 62, and spiral micrometer head is mounted on upper supporting plate 4
On, block 62 is mounted in spiral micrometer head 61, and moveable jaw 91 is connect with feed mechanism 6, further, upper fixture supporting plate
912 are connect by block 62 with spiral micrometer head 61, and stationary fixture 92 is connect with strain induction rubber 2, further, lower fixture
Supporting plate 922 is connect with strain induction rubber 2, preferably, upper fixture supporting plate 912 and upper fixture supporting plate 912 are L shape, is led to
Crossing screwfeed mechanism enables to conductive hairspring 3 to generate internal stress, while also energy band dynamic strain induction rubber 2 generates strain
Power, the structure of spiral micrometer head use the spiral micrometer head structure of micrometer, and the precision of feeding is high, and the pulling force precision of application can
Control.The position for being just adjustable upper fixture supporting plate 912 by adjusting screwfeed mechanism, i.e. screwfeed mechanism give upper fixture branch
When the upward pulling force of plate 912, conductive hairspring 3 can generate internal stress, while straining induction rubber 2 and can also generate and answering accordingly
Variable force.
When the utility model is used, first regulating the height of upper supporting plate 4 as needed, then pass through conductive hairspring fixture
9 upper reel 913 and lower reel 923 wind conductive hairspring 3, and upper copper wire briquetting 911 and lower copper wire briquetting 921 are clamped and led
Electric balance spring 3, then spiral micrometer head 61 is rotated to tense conductive hairspring 3, a tensile stress is applied to conductive hairspring 3 to simulate conduction
The residual stress of balance spring 3, this analog residue stress can be measured by strain induction rubber 2, later to the residual of conductive hairspring 3
Residue stress carry out Processing for removing, after treatment again according to strain induction rubber 2 measure processing after conductive hairspring 3 simulation it is residual
Residue stress, finally by front and back data comparison, the situation of change of available 3 residual stress of conductive hairspring.
For example, first fixing the present apparatus, conductive hairspring 3 is tensed by spiral micrometer head 61, and conductive hairspring 3 is applied
One tensile stress eliminates residual stress to simulate the residual stress of conductive hairspring 3, then by a variety of methods, passes through observation strain
Induction 2 side surface of rubber strain variation come obtain which kind of mode eliminate residual stress effect it is more preferable, that is, strain induction
The variation of 2 side surface of rubber strain is bigger, except the effect of residual stress is more preferable, observes strain induction by utility model device
The variation etc. of 2 side surface of rubber strain show which kind of eliminates the mode method that is more preferable, that is, using pre-stretching of residual stress
3 residual stress situation of change of conductive hairspring is quantitatively evaluated, can be used for analyzing distinct methods and eliminate conductive hairspring residual stress
Effect, meanwhile, present apparatus structure is simple, easy to use, high-efficient.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in every other embodiment.
Claims (6)
1. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated, it is characterised in that: the device includes pedestal, is mounted on
Feed mechanism on pedestal, conductive hairspring fixture and strain induction rubber；Conductive hairspring fixture includes moveable jaw and fixing clamp
Tool, moveable jaw are connected with feed mechanism, and stationary fixture is connected with strain induction rubber, and strain induction rubber is fixed on pedestal；
Moveable jaw and stationary fixture clamp the both ends of conductive hairspring, conductive hairspring and strain induction rubber strain having the same respectively
Direction.
2. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated according to claim 1, it is characterised in that: institute
Stating strain induction rubber is block uniform in material and regular shape, clamping part and conductive hairspring of the conductive hairspring in moveable jaw
It is conllinear in the clamping part of stationary fixture and the center of strain induction rubber.
3. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated according to claim 2, it is characterised in that: answer
Becoming induction rubber includes rubber block and foil gauge, and foil gauge is set to the side of rubber block, and rubber block is uniform in material and shape is advised
Then.
4. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated according to claim 1, it is characterised in that: institute
It states moveable jaw and stationary fixture respectively includes respective briquetting, fixture supporting plate and reel, the fixture supporting plate of moveable jaw is logical
It crosses block to connect with spiral micrometer head, the fixture supporting plate of stationary fixture is connect with strain induction rubber；Reel is mounted on respectively
Fixture supporting plate on, briquetting is mounted on reel, and one end of conductive hairspring is fixed with corresponding reel, conductive hairspring winding
With reel, briquetting is set to conductive hairspring from the position that reel is drawn, and briquetting is for clamping conductive hairspring.
5. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated according to claim 1, it is characterised in that: institute
Stating pedestal includes upper supporting plate, lower bottom base and support plate, and lower bottom base is fixedly connected with support plate, upper supporting plate by two strip holes with
Support plate connection, can be adjusted according to the needs the height of upper supporting plate.
6. a kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated according to claim 1, it is characterised in that: institute
Stating feed mechanism is screwfeed mechanism, and screwfeed mechanism includes spiral micrometer head and block, and spiral micrometer head is mounted on
On supporting plate, block is mounted in spiral micrometer head.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264382.5U CN209416539U (en) | 2018-12-31 | 2018-12-31 | A kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264382.5U CN209416539U (en) | 2018-12-31 | 2018-12-31 | A kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416539U true CN209416539U (en) | 2019-09-20 |
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| CN201822264382.5U Active CN209416539U (en) | 2018-12-31 | 2018-12-31 | A kind of device that the variation of conductive hairspring residual stress is quantitatively evaluated |
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| Country | Link |
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| CN (1) | CN209416539U (en) |
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2018
- 2018-12-31 CN CN201822264382.5U patent/CN209416539U/en active Active
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