CN211043449U - Electromagnetic compatibility test fixture - Google Patents
Electromagnetic compatibility test fixture Download PDFInfo
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- CN211043449U CN211043449U CN201921610893.6U CN201921610893U CN211043449U CN 211043449 U CN211043449 U CN 211043449U CN 201921610893 U CN201921610893 U CN 201921610893U CN 211043449 U CN211043449 U CN 211043449U
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Abstract
The utility model discloses an electromagnetic compatibility test fixture, including bottom plate, profile modeling support piece, support frame and first cylinder, the support frame is fixed with the bottom plate, and profile modeling support piece is fixed with the bottom plate, is equipped with the constant head tank with the product adaptation on the profile modeling support piece, and first cylinder setting is fixed in profile modeling support piece top and with the support frame, and the telescopic link of first cylinder is used for pressing down the button on the product. The utility model provides a device and a method for disassembling and assembling an energy storage spring of a trolley type circuit breaker, which has the advantages of simple structure of a disassembling and assembling tool and low manufacturing cost; the disassembling and assembling method has the advantages of simplicity, high disassembling and assembling efficiency, no damage to the outer surface of the spring and the like.
Description
Technical Field
The utility model relates to an electromagnetic compatibility test domain especially relates to an electromagnetic compatibility test fixture.
Background
The EMC test is also called electromagnetic compatibility (EMC), refers to the comprehensive evaluation of the interference level (EMI) and the anti-interference capability (EMS) of electronic products in the aspect of electromagnetic field, and is one of the most important indexes of product quality, and the measurement of the EMC consists of a test site and a test instrument. The EMC test aims at detecting the influence of electromagnetic radiation generated by an electrical product on a human body, a public place power grid and other electrical products which normally work. Electromagnetic compatibility is a subject of research that various electric equipment can coexist under the condition of limited space, time and spectrum resources without causing degradation. The electromagnetic interference test is to measure the size of electromagnetic wave signals generated and emitted outwards by the tested equipment in a normal working state to reflect the strength of interference on surrounding electronic equipment. The electromagnetic sensitivity test is used for measuring the anti-interference capability of the tested equipment to electromagnetic disturbance. During the electromagnetic compatibility test, the product needs to be fixed and operated according to certain actions, and the test fixture is not allowed to have metal elements, such as an actuating element of the test fixture, namely an air cylinder, a self-made plastic air cylinder, a locking element, namely a screw, a nylon screw, including some motion mechanisms, are made of plastic materials. However, in the prior art, the number of special fixtures is small, common fixtures are mostly adopted for clamping, the positioning is inaccurate, only a clamping function is provided, and no additional action can be performed, so that a test fixture needs to be designed for a product, and the test can be directly performed on the fixture.
Chinese patent application publication No. CN208443929U, published as 2019, 29.01.9 entitled "test system for electromagnetic compatibility test", discloses a test system for electromagnetic compatibility test, which is connected between a power supply of a device under test and the device under test, and comprises: the test instrument is connected with the power supply of the tested equipment and used for transmitting the electromagnetic compatibility test information to the tested equipment and receiving the feedback information of the tested equipment aiming at the electromagnetic compatibility test information; the upper computer is used for sending a test instruction to the test instrument so that the test instrument outputs electromagnetic compatibility test information according to the test instruction and receives feedback information; the control module is used for generating a driving signal according to the switching instruction; and the matrix switch is used for selecting the type of the matrix switch according to the driving signal so as to switch on or switch off the test instrument to output the electromagnetic compatibility test information to the tested equipment through the selected matrix switch. The utility model provides a test system for electromagnetic compatibility test has configured the matrix switch of multiple different grade type, can satisfy the electromagnetic compatibility test demand of different voltage and current environment. This patent only discloses a systematic approach to electromagnetic compatibility testing and does not disclose a specific test fixture.
Disclosure of Invention
The utility model discloses an it is less to overcome special test fixture among the prior art, and the function is simple not enough, provides an electromagnetic compatibility test fixture, and the location is accurate, can provide simultaneously to press down and try on the product performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electromagnetic compatibility test fixture, includes bottom plate, profile modeling support piece, support frame and first cylinder, and the support frame is fixed with the bottom plate, and profile modeling support piece is fixed with the bottom plate, is equipped with the constant head tank with the product adaptation on the profile modeling support piece, and first cylinder setting is fixed in profile modeling support piece top and with the support frame, and the telescopic link of first cylinder is used for pressing the button on the product.
In the technical scheme, the used cylinder is made of plastic materials, and other structures are made of non-metal materials. The telescopic rod of the first cylinder is provided with a pressing piece for pressing a button on a product, and the telescopic rod of the first cylinder presses the button through the pressing piece. The profiling supporting piece and the product can be fixed through bolts or clamped through a clamping structure. When the fixture is used, the product can be accurately clamped in the positioning groove and accurately positioned, then the product is fixed with the profiling support piece, and the performance of the product is tested by starting the first cylinder.
Preferably, the support frame is provided with a fixing groove and a pressing piece, the first cylinder portion is arranged in the fixing groove, and the pressing piece is fixed with the support frame and presses the first cylinder. The structure can adjust the key stroke by adjusting the position of the first air cylinder.
Preferably, the rotary knob sleeve is sleeved on a first rotary knob of a product and fixed with the first rotary knob, a torsion bulge is arranged on the outer circumference of the rotary knob sleeve, a second cylinder is arranged on the supporting frame, a telescopic rod of the second cylinder is perpendicular to a telescopic rod of the first cylinder, the telescopic rod of the second cylinder is in contact with the torsion bulge, and the telescopic rod of the second cylinder pushes the rotary knob sleeve to rotate in the forward direction. The structure can realize the rotation test of the first knob, is driven only by the second cylinder and is the same as the pressing test driving piece, the control structure is relatively simpler, the types of control elements are reduced, and the control difficulty is reduced.
Preferably, the center of the knob sleeve is provided with a connecting through hole, the connecting through hole is matched with the first knob, and the connecting through hole is provided with a conical hole. The structure can enable the knob sleeve to be matched and fixed with the first knob, and the tapered hole is convenient for sleeving the knob sleeve on the first knob.
Preferably, the support frame is provided with a third cylinder, a telescopic rod of the third cylinder is perpendicular to a telescopic rod of the first cylinder, the telescopic rod of the third cylinder is in contact with the torsion protrusion, and the telescopic rod of the third cylinder pushes a first knob of a product to rotate reversely. The third cylinder can realize the reverse rotation of the first knob, so that the reciprocating rotation test is carried out.
Preferably, the third cylinder and the second cylinder are arranged on the same side of the product, and the telescopic rod of the third cylinder and the telescopic rod of the second cylinder are respectively contacted with the torsion protrusions arranged on the two opposite sides of the knob sleeve. The third cylinder and the second cylinder are arranged on the same side of the product, so that the structure is more compact, one side of the product is left, the product is convenient to install, the arrangement of a driving pipeline is also convenient, and the manufacturing cost is reduced. The structure can realize a rotation angle of 67.5 degrees, and the motion mode is that when the 2-position 5-way electromagnetic valve supplies air to the second cylinder, the rod of the second cylinder extends outwards, the piston rod of the third cylinder retracts under the power-off state of the electromagnetic valve, and vice versa, and the knob kit is continuously driven to swing in a reciprocating mode.
Preferably, the gear sleeve is further included, the gear sleeve is sleeved on a second knob of the product and fixed with the second knob, a fourth cylinder and a rack are arranged on the supporting frame, the rack is connected with the supporting frame in a sliding mode, a telescopic rod connected with the fourth cylinder is fixed with the rack, and the rack is meshed with the gear sleeve. The structure can realize large-angle rotation of the second knob by the principle of gear and rack meshing, repeated tests can be carried out, the control element is a pneumatic element and is consistent with other control elements, and the control structure is simple.
Preferably, the supporting frame is provided with a mechanical limiting plate, and the mechanical limiting plate is fixed with the supporting frame. The mechanical limiting plate can limit the tail position of the rack, and then the rotation angle of the gear kit is controlled.
Preferably, the telescopic rod and the rack of the fourth cylinder are fixed through a floating joint. The flexible connection of the telescopic link that the structure can realize fourth cylinder and rack avoids the telescopic link card of fourth cylinder to die.
The utility model has the advantages that: (1) the test of two actions of pressing and rotating can be realized; (2) the control elements are unified and are all cylinders, so that the control structure is simpler, the types of the control elements are reduced, and the control difficulty is reduced; (3) repeated rotation at a large angle can be realized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of a partial structure of the present invention.
In the figure: the device comprises a bottom plate 1, a profiling supporting piece 2, a positioning groove 2.1, a supporting frame 3, a fixing groove 3.1, a first air cylinder 4, a pressing piece 5, a knob suite 6, a torsion bulge 6.1, a connecting through hole 6.2, a second air cylinder 7, a third air cylinder 8, a gear suite 9, a fourth air cylinder 10, a rack 11, a mechanical limiting plate 12, a floating joint 13, a product 14, a first knob 14.1 and a second knob 14.2.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example (b):
as shown in fig. 1 and 2, an electromagnetic compatibility test fixture comprises a bottom plate 1, a profiling support member 2, a support frame 3, a first cylinder 4, a knob kit 6 and a gear kit 9, wherein the support frame 3 is fixed with the bottom plate 1, the profiling support member 2 is fixed with the bottom plate 1, a positioning groove 2.1 matched with a product 14 is formed in the profiling support member 2, the first cylinder 4 is arranged above the profiling support member 2 and fixed with the support frame 3, and a pressing piece used for pressing a button on the product 14 is arranged on a telescopic rod of the first cylinder 4.
Be equipped with fixed slot 3.1 on the support frame 3 and compress tightly piece 5, first cylinder 4 part sets up in fixed slot 3.1, compresses tightly 5 and support frame 3 fixed and compress tightly first cylinder 4.
A connecting through hole 6.2 is formed in the center of the knob sleeve 6, the connecting through hole 6.2 is matched with the first knob 14.1, and a tapered hole is formed in the connecting through hole 6.2; the knob suite 6 is sleeved on a first knob 14.1 of a product 14 and fixed with the first knob 14.1, a torsion bulge 6.1 is arranged on the outer circumference of the knob suite 6, a second cylinder 7 and a third cylinder 8 are arranged on the support frame 3, the third cylinder 8 and the second cylinder 7 are arranged on the same side of the product 14, and a telescopic rod of the third cylinder 8 and a telescopic rod of the second cylinder 7 are respectively contacted with the torsion bulges 6.1 arranged on two opposite sides of the knob suite 6;
the telescopic rod of the second cylinder 7 is vertical to the telescopic rod of the first cylinder 4, and the telescopic rod of the second cylinder 7 pushes the knob sleeve 6 to rotate in the positive direction; the telescopic rod of the third cylinder 8 is vertical to the telescopic rod of the first cylinder 4, and the telescopic rod of the third cylinder 8 pushes the first knob 14.1 of the product 14 to rotate reversely;
the gear sleeve 9 is sleeved on a second knob 14.2 of a product 14 and fixed with the second knob 14.2, a fourth cylinder 10, a rack 11 and a floating joint 13 are arranged on the support frame 3, the rack 11 is connected with the support frame 3 in a sliding manner, a telescopic rod of the fourth cylinder 10 is fixed with the rack 11 through the floating joint 13, and the rack 11 is meshed with the gear sleeve 9; the supporting frame 3 is provided with a mechanical limiting plate 12, and the mechanical limiting plate 12 is fixed with the supporting frame 3.
In the technical scheme, the used cylinder is made of plastic materials, and other structures are made of non-metal materials. The profile support 2 and the product 14 may be bolted or clamped by a clamping arrangement. When the clamp is used, the product 14 can be accurately clamped in the positioning groove 2.1 and positioned accurately, then the product 14 is fixed with the profiling support 2, and the performance of the product 14 is tested by starting each air cylinder.
The utility model has the advantages that: the test of two actions of pressing and rotating can be realized; the control elements are unified and are all cylinders, so that the control structure is simpler, the types of the control elements are reduced, and the control difficulty is reduced; repeated rotation at a large angle can be realized.
Claims (8)
1. The utility model provides an electromagnetic compatibility test fixture, characterized by, includes bottom plate, profile modeling support piece, support frame and first cylinder, and the support frame is fixed with the bottom plate, and profile modeling support piece is fixed with the bottom plate, is equipped with the constant head tank with the product adaptation on the profile modeling support piece, and first cylinder setting is equipped with the pressing part that is used for pressing button on the product in profile modeling support piece top and fixed with the support frame, on the telescopic link of first cylinder.
2. The test fixture of claim 1, wherein the support frame has a retaining groove and a compression member, the first cylinder portion is disposed in the retaining groove, and the compression member is secured to the support frame and compresses the first cylinder.
3. The test fixture of claim 1, further comprising a knob kit, wherein the knob kit is sleeved on and fixed to a first knob of a product, a torsion protrusion is provided on an outer circumference of the knob kit, a second cylinder is provided on the support frame, a telescopic rod of the second cylinder is perpendicular to a telescopic rod of the first cylinder, a telescopic rod of the second cylinder contacts with the torsion protrusion, and the telescopic rod of the second cylinder pushes the knob kit to rotate in a forward direction.
4. The test fixture for electromagnetic compatibility tests according to claim 3, wherein the knob kit has a connection through hole at the center thereof, the connection through hole being adapted to the first knob, the connection through hole having a tapered hole.
5. The test fixture for the electromagnetic compatibility test according to claim 3, wherein a third cylinder is arranged on the supporting frame, a telescopic rod of the third cylinder is perpendicular to a telescopic rod of the first cylinder, the telescopic rod of the third cylinder is in contact with the torsion protrusion, and the telescopic rod of the third cylinder pushes the first knob of the product to rotate reversely.
6. The test fixture for the electromagnetic compatibility test according to any one of claims 1 to 5, further comprising a gear kit, wherein the gear kit is sleeved on the second knob of the product and fixed with the second knob, the support frame is provided with a fourth cylinder and a rack, the rack is slidably connected with the support frame, the telescopic rod and the fourth cylinder are fixed with the rack, and the rack is engaged with the gear kit.
7. The test fixture for the electromagnetic compatibility test according to claim 6, wherein the support frame is provided with a mechanical limiting plate, and the mechanical limiting plate is fixed with the support frame.
8. The test fixture for electromagnetic compatibility tests as claimed in claim 6, wherein the fourth cylinder and the telescopic rod are fixed with the rack by a floating joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921610893.6U CN211043449U (en) | 2019-09-25 | 2019-09-25 | Electromagnetic compatibility test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921610893.6U CN211043449U (en) | 2019-09-25 | 2019-09-25 | Electromagnetic compatibility test fixture |
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| Publication Number | Publication Date |
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| CN211043449U true CN211043449U (en) | 2020-07-17 |
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| CN201921610893.6U Active CN211043449U (en) | 2019-09-25 | 2019-09-25 | Electromagnetic compatibility test fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806500A (en) * | 2019-09-25 | 2020-02-18 | 杭州广安汽车电器有限公司 | Electromagnetic compatibility test fixture |
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2019
- 2019-09-25 CN CN201921610893.6U patent/CN211043449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806500A (en) * | 2019-09-25 | 2020-02-18 | 杭州广安汽车电器有限公司 | Electromagnetic compatibility test fixture |
| CN110806500B (en) * | 2019-09-25 | 2021-10-26 | 杭州广安汽车电器有限公司 | Electromagnetic compatibility test fixture |
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