CN220625575U - Force measuring jig for switch sheet - Google Patents
Force measuring jig for switch sheet Download PDFInfo
- Publication number
- CN220625575U CN220625575U CN202321847086.2U CN202321847086U CN220625575U CN 220625575 U CN220625575 U CN 220625575U CN 202321847086 U CN202321847086 U CN 202321847086U CN 220625575 U CN220625575 U CN 220625575U
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- switch
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- positioning
- switch sheet
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- 238000012360 testing method Methods 0.000 claims abstract description 106
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a force measuring jig for a switch sheet, which comprises: the device comprises a base, a top cover, a mounting shaft, a test board, a test rod, an opening contact and a closing contact, wherein the top cover is hinged to the base, the mounting shaft penetrates through the base and one end of the top cover, the test board is arranged below the top cover and used for positioning the switch sheet, the test rod penetrates through the top cover and is used for pressing the switch sheet, the switch sheet is provided with the opening contact and the closing contact, a supporting force arm which is positioned between the opening contact and the closing contact and is used for enabling the switch sheet to elastically deform is arranged on the test board, the top cover is provided with an opening test hole for the test rod to penetrate through and press the opening contact to test, and the top cover is also provided with a closing test hole for the test rod to penetrate through and press the closing contact to test; the structure can directly detect the elasticity of the semi-finished switch piece, and meets the requirement of the semi-finished switch piece on detecting the opening and closing forces.
Description
Technical field:
the utility model relates to the technical field of force measuring jigs, in particular to a force measuring jig for a switch sheet.
The background technology is as follows:
the key switch is one of the most common switches, and the elastic value of the key switch is one of the most important factors affecting the functions of the key switch; when the key switch is turned on or off, a force is applied to the key switch, so that the elastic value of the key switch is required to be in a proper interval, otherwise, the normal use of the key switch is affected, and in production, the switch elastic detection equipment is used for detecting whether the elastic value of the key switch is qualified or not, so that the normal use of the switch is prevented from being affected.
Common switch elastic force detection devices include the following:
membrane switch test equipment: the upper layer and the lower layer of circuits are tested separately, and the access, short circuit and open circuit of the membrane switch and the connecting resistance of the membrane switch can be detected.
Elasticity test equipment for silicon rubber key switch: the servo motor is adopted, so that the silicon rubber key switch can be tested.
The touch switch load resilience force tester comprises: different switch fixing seats can be assembled, impedance tests are carried out, and the silicon rubber keys, the electric appliance switches, the film switches and the key switches can be detected; such a device is one of the more versatile detection devices.
For example, chinese patent publication number is: the patent application CN202122109850 discloses a device for detecting the elastic value of a movable contact of a pressure switch, in which a conductive column is inserted into a switch binding post to realize line communication, the movable contact moves forward, a push rod can bear the pressure exerted by the movable contact, the pressure can be measured by a weighing sensor, when the movable contact and the movable contact are separated, the line is disconnected, and the pressure value measured by the weighing sensor at the moment is the elastic value of the movable contact. When detecting the key switch with the built-in switch sheet, the mode can only detect the elasticity of the assembled finished switch, and the existing unqualified key switch can only be reworked and disassembled, so that the mode is very low in efficiency, and the cost is increased due to waste of work materials; meanwhile, the currently produced semi-finished switch sheet (such as an electric toothbrush switch sheet) cannot measure the opening and closing elastic force values, and the switch function can be measured only by assembling the semi-finished switch sheet into a terminal finished product, so that the requirement for detecting the elastic force of the semi-finished switch sheet is met, and the patent cannot meet the requirement.
In view of this, the present inventors have proposed the following means.
The utility model comprises the following steps:
the utility model aims to overcome the defects of the prior art and provides a force measuring jig for a switch sheet.
In order to solve the technical problems, the utility model adopts the following technical scheme: the force measuring jig for the switch sheet comprises a base, a top cover, a mounting shaft, a test board, a test rod, an opening contact and a closing contact, wherein the top cover is hinged to the base, the mounting shaft penetrates through the base and one end of the top cover, the test board is arranged below the top cover and used for positioning the switch sheet, the test rod penetrates through the top cover and is used for pressing the switch sheet, the switch sheet is provided with the opening contact and the closing contact, the test board is provided with a supporting force arm which is positioned between the opening contact and the closing contact and is used for enabling the switch sheet to generate elastic deformation, the top cover is provided with an opening test hole for the test rod to penetrate through and pressing the opening contact to test, and the top cover is also provided with a closing test hole for the test rod to penetrate through and pressing the closing contact to test; when the key switch of the built-in switch sheet is detected, the structure can directly detect the elasticity of the semi-finished switch sheet, and the unqualified switch sheet can be screened out before being unassembled, so that the efficiency is greatly improved, and the requirements of the semi-finished switch sheet on and off strength test are met.
In the above technical scheme, a first positioning needle and a second positioning needle are arranged on the test board, and the tops of the first positioning needle and the second positioning needle extend out of the upper end face of the test board and are used for positioning the switch sheet; the tops of the first positioning needle and the second positioning needle penetrate through the switch sheet to position the switch sheet on the test bench.
In the technical scheme, the top cover comprises a top plate part for the installation shaft to pass through and a cover plate part positioned above the test bench, and a pressing block which corresponds to the first positioning needle and the second positioning needle and is used for pressing and fixing the switch sheet is arranged on the lower end surface of the cover plate part; when the pressing block is pressed against the first positioning needle and the second positioning needle, the switch sheet is positioned on the test bench.
In the above technical solution, the pressing block is provided with a first positioning hole and a second positioning hole for the first positioning needle and the second positioning needle to be inserted and matched to fix the switch sheet; when the first positioning needle and the second positioning needle are inserted into the first positioning hole and the second positioning hole, the switch sheet is fixed on the test bench, and when the first positioning needle and the second positioning needle are separated from the first positioning hole and the second positioning hole, the switch sheet can be detached from the test bench.
In the technical scheme, a spring which is positioned between the top cover and the base and used for floatingly supporting the top cover is sleeved on the mounting shaft; the spring provides support for the top cover when rotating, avoids the top cover with the base contact friction.
In the above technical solution, the mounting shaft is a bolt, the bolt passes through the base and the top plate from bottom to top, the upper end of the bolt is provided with a threaded section passing through the top cover, and the threaded section is provided with a tightening nut for locking and loosening the top cover; the elastic nut is matched with the spring 6 to enable the top cover to rotate conveniently, so that the jig is faster when the switch piece is replaced in practice.
Furthermore, in the above technical scheme, the elastic nut is provided with vertical lines uniformly distributed thereon, and the vertical lines are used for increasing the rotating friction force of the elastic nut, so that the fixture can replace the switch piece more quickly in actual operation.
Furthermore, in the above technical solution, a positioning column for limiting the top cover is provided on the base 1, and the positioning column is located at a side of the test bench; the top cover rotates to the upper side of the test board, the positioning column limits the top cover, so that the opening test hole and the closing test hole accurately correspond to the opening contact and the closing contact, and the test rod can be correctly pressed to the corresponding position of the switch sheet to obtain an effective detection result during testing.
Furthermore, in the above technical solution, a receiving hole is provided on a side surface of the base, and the receiving hole is used for receiving the test stick; the lower end part of the test rod is provided with a contact protruding downwards from top to bottom, and the contact is made of soft materials so as to avoid rigid damage to the switch sheet; the utility model discloses a test rod, including the test rod, the test rod upper end is equipped with from inside to outside cap form body, when cap form body was used for the dynamometry, the dynamometer can be better support the pressure the test rod, and conveniently dismantle and install the test rod.
Furthermore, in the above technical solution, a first slot for positioning the spring is provided between the top plate and the base.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the functions of the utility model include: when detecting the key switch of built-in switch shell fragment, can directly carry out elasticity detection to half switch piece, can just will disqualified before not assemble the switch piece sieves out, has not only promoted efficiency, has still satisfied the demand of half switch piece measurement opening, closing dynamics.
Description of the drawings:
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a schematic view of the top cover of the present utility model;
FIG. 3 is a schematic diagram of a test station according to the present utility model;
FIG. 4 is a top view of the present utility model;
fig. 5 is a perspective view of the present utility model.
The specific embodiment is as follows:
the utility model will be further described with reference to specific examples and figures.
Referring to fig. 1 to 5, the force measuring jig for a switch sheet comprises a base 1, a top cover 2 hinged to the base 1, a mounting shaft 3 penetrating through the base 1 and one end of the top cover 2, a test board 11 arranged below the top cover 2 and used for positioning the switch sheet 4, and a test bar 5 penetrating through the top cover 2 and used for pressing the switch sheet 4, wherein the switch sheet 4 is provided with an opening contact 41 and a closing contact 42, a supporting arm 101 arranged between the opening contact 41 and the closing contact 42 and used for enabling the switch sheet 4 to generate elastic deformation is arranged on the test board 11, the top cover 2 is provided with an opening test hole 221 for allowing the test bar 5 to penetrate through and be pressed against the opening contact 41 for testing, and the top cover 2 is also provided with a closing test hole 222 for allowing the test bar 5 to penetrate through and be pressed against the closing contact 42 for testing. In the product, the on state of the switch sheet 4 is that one end of the switch sheet is tilted downwards and is propped against the contact motor to conduct a circuit, and the off state of the switch sheet 4 is that one end of the switch sheet is tilted upwards and is separated from the contact motor to disconnect the circuit; the jig simulates the shape in a product to ensure that the opening and closing force of a semi-finished switch sheet can be tested, when in test, the switch sheet 4 in the closed state is sleeved into the test board 11, the support arm 101 supports the switch sheet 4, the top cover 2 is covered, the nut 7 is locked, the test rod 5 is inserted into the opening test hole 221, then the jig is placed into an automatic tester, the knob is rocked to enable the test rod 5 to move downwards and press the opening contact 41 to drive the switch sheet 4 to spring to the open state, and then the opening force value is obtained; the test bar 5 is inserted into the closing test hole 222, then the jig is put into the automatic tester, the knob is rocked to enable the test bar 5 to move downwards and press the closing contact 41 to drive the switch piece 4 to spring to a closing state, and then a closing force value is obtained.
The test bench 11 is provided with a first positioning needle 102 and a second positioning needle 103, and the tops of the first positioning needle 102 and the second positioning needle 103 extend out of the upper end face of the test bench 11 and are used for positioning the switch sheet 4. The top cover 2 comprises a top plate part 21 for the installation shaft 3 to pass through and a cover plate part 22 positioned above the test bench 11, wherein a pressing block 200 which corresponds to the first positioning needle 102 and the second positioning needle 103 and is used for pressing and fixing the switch sheet 4 is arranged on the lower end surface of the cover plate part 22. When the pressing block 200 is pressed against the first positioning needle 102 and the second positioning needle 103, the switch sheet 4 is positioned on the test table 11.
The press block 200 is provided with a first positioning hole 201 and a second positioning hole 202 for the first positioning needle 102 and the second positioning needle 103 to be inserted into and matched with to fix the switch sheet 4. When the first positioning pin 102 and the second positioning pin 103 are inserted into the first positioning hole 201 and the second positioning hole 202, the switch sheet 4 is fixed on the test board 11, and when the first positioning pin 102 and the second positioning pin 103 are separated from the first positioning hole 201 and the second positioning hole 202, the switch sheet 4 can be removed from the test board 11.
The mounting shaft 3 is sleeved with a spring 6 which is positioned between the top cover 2 and the base 1 and is used for floatingly supporting the top cover 2. The mounting shaft 3 is a bolt, the bolt passes through the base 1 and the top plate part 21 from bottom to top, the upper end part of the bolt is provided with a thread section 31 passing through the top cover 2, and the thread section 31 is provided with a tightening nut 7 for locking and loosening the top cover 2. The elastic nuts 7 are uniformly distributed with vertical lines. The vertical lines are used for increasing the rotating friction force of the elastic nut 7, and the spring 6 floats and props up the top cover 2, so that the top cover can smoothly rotate away from the upper part of the test board 11, and an operator can change the switch piece 4 more quickly.
A positioning column 12 used for limiting the top cover 2 is arranged on the base 1, and the positioning column 12 is positioned beside the test bench 11; the positioning column 12 limits the top cover 2 when the top cover 2 rotates above the test board 11, so that the opening test hole 221 and the closing test hole 222 accurately correspond to the opening contact 41 and the closing contact 42, and the test rod 5 can be correctly pressed to the corresponding position of the switch sheet 4 to obtain an effective detection result during testing.
The side of the base 1 is provided with a storage hole 13, and the storage hole 13 is used for storing the test rod 5. The lower end part of the test rod 5 is provided with a contact protruding downwards from top to bottom, and the contact is made of soft materials so as to avoid rigid damage to the switch sheet 4; the upper end of the test rod 5 is provided with a cap-shaped body from inside to outside, and the cap-shaped body enables the dynamometer to better resist and press the test rod 5, so that the test rod 5 is convenient to detach and install.
A first slot 211 for positioning the spring 6 is provided between the top plate 21 and the base 1.
In summary, the present utility model is used: firstly, the elastic nut 7 is loosened to enable the spring 6 to float and prop up the top cover 2, so that the top cover can smoothly rotate away from the upper side of the test bench 11. And secondly, manually installing the switch sheet 4 on the test bench 11, and aligning two small holes on the switch sheet 4 with the first positioning needle 102 and the second positioning needle 103 when the switch sheet is installed, wherein the supporting arm 101 just abuts against the middle of the opening contact 41 and the closing contact 42 and plays a role of supporting the switch sheet. And thirdly, manually turning the top cover 2 back above the test board 11, wherein when the top cover is turned back, the positioning column 12 limits the top cover 2, so that the opening test hole 221 can accurately correspond to the opening contact 41, and then the elastic nut 7 is locked, and the top cover 2 is pressed against and fixed to the switch sheet 4. Fourth, the test bar 5 is inserted into the opening test hole 221 and the test bar 5 is made to abut against the opening contact, then the jig is put into the automatic tester, the automatic tester pushes the test bar 5 downwards, the switch 4 is driven to spring from the closed state to the open state, and then the opening force value is read. And fifthly, inserting the test rod into the closed test hole 221, enabling the test rod 5 to prop against the closed contact, then placing the jig into an automatic tester, pushing the test rod 5 downwards by the automatic tester, driving the switch sheet 4 to spring from an open state to a closed state, and then reading the closing force value.
The utility model also has the following characteristics: the coverage is wide: the principle covers that all electric toothbrush switch piece force measuring functions completely simulate the glue piece, data validity, and the force measuring process from opening to closing force completely simulate the glue piece.
Innovative force measurement jig: not only can the force monitoring before the assembly of the switch sheet of the electric toothbrush be solved, but also the force measuring requirements of various products can be met according to the force measuring data.
The high-simulation force measuring jig is simple to operate: the opening and closing force of the semi-finished electric toothbrush switch piece can be freely tested without assembling a finished product, and the requirement of the semi-finished switch piece for detecting the opening and closing force test is met.
Convenient, fast and effective: the electric toothbrush switch piece dynamics function can be monitored in real time, and the product dynamics quality is ensured fast.
Professional construction: the principle is suitable for testing the strength of all electric toothbrush switch plates, and the quality is guaranteed.
It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Claims (10)
1. A force measurement tool for switch piece, its characterized in that includes: base (1), articulated set up in top cap (2) on base (1), run through set up in base (1) with installation axle (3) of top cap (2) one end, set up in top cap (2) below and be used for testboard (11) of locating switch piece (4), run through set up in on top cap (2) and be used for the butt test stick (5) of switch piece (4), switch piece (4) are provided with opening contact (41) and closing contact (42), be provided with on testboard (11) be located opening contact (41) with closing contact (42) between and be used for making switch piece (4) can produce elastic deformation's support arm (101), top cap (2) be provided with supply test stick (5) pass in order to right opening hole (221) of opening contact (41) butt test, top cap (2) still are provided with supply test stick (5) pass in order to right closing contact (42) butt test hole (222).
2. The force measuring jig for a switch sheet according to claim 1, wherein: the test bench (11) is provided with a first positioning needle (102) and a second positioning needle (103), and the upper tops of the first positioning needle (102) and the second positioning needle (103) extend out of the upper end face of the test bench (11) and are used for positioning the switch sheet (4).
3. The force measuring jig for a switch sheet according to claim 2, wherein: the top cover (2) comprises a top plate part (21) for the installation shaft (3) to pass through and a cover plate part (22) positioned above the test bench (11), wherein a pressing block (200) which corresponds to the first positioning needle (102) and the second positioning needle (103) and is used for pressing and fixing the switch sheet (4) is arranged on the lower end surface of the cover plate part (22).
4. The force measuring jig for a switch sheet according to claim 3, wherein: the pressing block (200) is provided with a first positioning hole (201) and a second positioning hole (202) which are used for the first positioning needle (102) and the second positioning needle (103) to be inserted into and matched with the switch sheet (4) to be fixed.
5. The force measuring jig for a switch sheet according to claim 3, wherein: the mounting shaft (3) is sleeved with a spring (6) which is positioned between the top cover (2) and the base (1) and is used for floatingly supporting the top cover (2).
6. The force measuring jig for a switch blade of claim 5, wherein: the mounting shaft (3) is a bolt, the bolt passes through the base (1) and the top plate part (21) from bottom to top, the upper end part of the bolt is provided with a threaded section (31) passing through the top cover (2), and the threaded section (31) is provided with a tightening nut (7) for locking and loosening the top cover (2).
7. The force measuring jig for a switch blade of claim 6, wherein: vertical lines are uniformly distributed on the elastic nuts (7).
8. The force measuring jig for a switch sheet according to any one of claims 1 to 7, wherein: the base (1) is provided with a positioning column (12) used for limiting the top cover (2), and the positioning column (12) is located at the side of the test bench (11).
9. The force measuring jig for a switch blade of claim 8, wherein: the side of the base (1) is provided with a storage hole (13), and the storage hole (13) is used for storing the test rod (5).
10. The force measuring jig for a switch blade of claim 5, wherein: a first groove (211) for positioning the spring (6) is arranged between the top plate (21) and the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321847086.2U CN220625575U (en) | 2023-07-13 | 2023-07-13 | Force measuring jig for switch sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321847086.2U CN220625575U (en) | 2023-07-13 | 2023-07-13 | Force measuring jig for switch sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220625575U true CN220625575U (en) | 2024-03-19 |
Family
ID=90226249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321847086.2U Active CN220625575U (en) | 2023-07-13 | 2023-07-13 | Force measuring jig for switch sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220625575U (en) |
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2023
- 2023-07-13 CN CN202321847086.2U patent/CN220625575U/en active Active
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