CN215548129U - Clamp for EMC test - Google Patents

Clamp for EMC test Download PDF

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Publication number
CN215548129U
CN215548129U CN202121873427.4U CN202121873427U CN215548129U CN 215548129 U CN215548129 U CN 215548129U CN 202121873427 U CN202121873427 U CN 202121873427U CN 215548129 U CN215548129 U CN 215548129U
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China
Prior art keywords
fixing
fixed sleeve
clamp
telescopic
fly leaf
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CN202121873427.4U
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Chinese (zh)
Inventor
戴佩刚
李成杰
戴安迪
程辉
曾祥伟
许景涛
李明辉
陈汉生
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Shanghai Shenrui Electrical Co ltd
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Shanghai Shenrui Electrical Co ltd
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Priority to CN202121873427.4U priority Critical patent/CN215548129U/en
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Abstract

The utility model relates to the field of EMC test equipment, in particular to a clamp for an EMC test, which is placed on an operation table and comprises a fixed structure and a plurality of clamping jaw structures arranged on one side of the fixed structure, wherein the clamping jaw structures are used for fixing a piece to be tested in a matching way with the fixed structure, each clamping jaw structure comprises three movable plates which are sequentially hinged, a plurality of abutting columns are arranged on one side of each movable plate, each abutting column is elastically connected with the corresponding movable plate, the movable plate positioned in the middle is connected with a lifting table through a connecting piece, two movable pieces on two sides are correspondingly connected with telescopic pieces arranged on the connecting pieces, the telescopic pieces are used for driving the movable plates to rotate, the bottom of the lifting table is connected with a sliding block on the operation table, and the sliding block is driven to move through a moving assembly, meanwhile, the angle of the movable plate is adjusted by matching with the telescopic piece so as to adapt to fixation of pieces to be detected with different shapes.

Description

Clamp for EMC test
Technical Field
The utility model relates to the field of EMC test equipment, in particular to a clamp for EMC test.
Background
The EMC test is also called electromagnetic compatibility, refers to the comprehensive evaluation of the interference and the anti-interference capability of electronic products in the aspect of electromagnetic field, is one of the most important indexes of product quality, the measurement of the electromagnetic compatibility is composed of a test field and a test instrument, and the EMC test aims at detecting the influence of electromagnetic radiation generated by the electric products on human bodies, public place power grids and other electric products which normally work.
The piece to be tested needs to be fixed through a clamp in the testing process, the current EMC testing clamp is commonly used for fixing the piece to be tested in a regular shape, and the fixing capability of the piece to be tested in an irregular shape is weaker.
Disclosure of Invention
The utility model aims to provide a clamp for an EMC test, which solves the problem that the fixing capability of the existing clamp for the EMC test to an irregularly-shaped part to be tested is weak.
In order to achieve the purpose, the utility model provides a clamp for an EMC test, wherein the clamp is placed on a workbench and comprises a fixing structure and clamping jaw structures, the fixing structure comprises a fixing part, and the clamping jaw structures are arranged on one side of the fixing part and are used for fixing a to-be-tested part in a matching manner;
the clamping jaw structure includes three articulated fly leaf in proper order, the fly leaf is equipped with a plurality of butt posts towards piece one side that awaits measuring, on the butt post passes through elasticity subassembly elastic connection fly leaf, wherein be located the centre the fly leaf passes through the connecting piece and is connected with the elevating platform, two in both sides the fly leaf corresponds and sets up the extensible member on the connecting piece and is connected, the extensible member will be used for driving the fly leaf and rotates, the elevating platform bottom is connected with the sliding block on the operation platform, the sliding block drives the removal through removing the subassembly.
As a further scheme of the utility model, the fixing part is a fixing plate, the fixing plate is fixedly installed on the operation table, and a soft anti-skid pad is arranged on the side, facing the part to be detected, of the fixing plate.
As a further scheme of the utility model, the elastic component comprises a fixed sleeve and a movable rod, wherein one side of the fixed sleeve is fixedly arranged on the movable plate, the other end of the fixed sleeve is provided with a mounting hole in sliding connection with the movable rod, one end of the movable rod is connected with the abutting column, the other end of the movable rod acts in the fixed sleeve and is connected with one side of a sliding plate in the fixed sleeve, and the other end of the sliding plate is connected with the bottom of the fixed sleeve through a spring.
As a further scheme of the present invention, the telescopic member is a telescopic cylinder, and the telescopic cylinders are independently telescopic and used for adjusting the rotation angle of the corresponding connected movable plate.
As a further scheme of the utility model, the moving assembly comprises a driving bevel gear and a plurality of screw rods, the screw rods are rotationally connected to the operating platform and form thread pair transmission with corresponding sliding blocks, the screw rods are meshed with the driving bevel gear through driven bevel gears arranged at one ends of the screw rods, and the driving bevel gear is used for driving the screw rods to rotate.
As a further aspect of the present invention, a placing seat for placing the object to be tested is provided on the work table, and the placing seat is provided on an upper portion of the moving assembly.
According to the utility model, the plurality of independently compressible abutting columns are designed on the movable plate, when the movable plate is abutted and fixed with the to-be-detected piece, the plurality of abutting columns are contacted with the surface of the irregular to-be-detected piece and are compressed to different degrees, and the angle of the corresponding movable plate is adjusted through the telescopic piece so as to adapt to the fixation of the to-be-detected pieces with different shapes, so that the problem that the fixing capacity of the conventional EMC (electro magnetic compatibility) test fixture for the irregular to-be-detected piece is weaker is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a fixture for EMC testing according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1 according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a moving assembly according to an embodiment of the present invention.
In the figure: 1. an operation table; 101. a sliding groove; 2. a fixing plate; 21. a non-slip mat; 3. a placing seat; 4. a slider; 5. a lifting platform; 6. a connecting seat; 7. a telescopic cylinder; 8. a movable plate; 81. an abutment assembly; 811. a spring; 812. fixing a sleeve; 813. a movable rod; 814. a butting post; 9. a moving assembly; 91. a drive bevel gear; 92. a driven bevel gear; 93. a screw.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
As shown in fig. 1, in an embodiment of the present invention, a jig for EMC test, which is placed on a work table 1, the clamp comprises a fixing structure and clamping jaw structures, the fixing structure comprises a fixing piece, the clamping jaw structures are all arranged on one side of the fixing piece, used for fixing the piece to be measured by matching with a fixing piece, the clamping jaw structure comprises three movable plates 8 which are sequentially hinged, a plurality of abutting columns 814 are arranged on one side of the movable plate 8 facing the object to be measured, the abutting columns 814 are elastically connected to the movable plate 8 through elastic components, wherein the movable plate 8 positioned in the middle is connected with the lifting platform 5 through a connecting piece, two movable plates 8 at two sides are correspondingly connected with a telescopic piece arranged on the connecting piece, the extensible member will be used for driving fly leaf 8 to rotate, elevating platform 5 bottom is connected with sliding block 4 on the operation platform 1, sliding block 4 drives through removal subassembly 9 and removes.
When the device is used, the sliding block 4 is driven to move through the moving assembly 9 to drive the clamping jaw structure to move, the movable plate 8 is driven to rotate through the stretching of the telescopic piece, the abutting columns 814 are close to the surface of a piece to be measured, and in the fixing process, the abutting columns 814 abut against the surface of the piece to be measured and are independently compressed.
As shown in fig. 1, in the embodiment of the present invention, the fixing member is a fixing plate 2, the fixing plate 2 is fixedly installed on the workbench 1, and a soft anti-slip pad 21 is disposed on the fixing plate 2 facing the side of the object to be measured.
As shown in fig. 2, in the embodiment of the present invention, the elastic component and the abutting column 814 form an abutting component 81, wherein the elastic component includes a fixed sleeve 812 and a movable rod 813, one side of the fixed sleeve 812 is fixedly mounted on the movable plate 8, the other end of the fixed sleeve is provided with a mounting hole slidably connected to the movable rod 813, one end of the movable rod 813 is connected to the abutting column 814, the other end of the movable rod acts in the fixed sleeve 812 and is connected to one side of a sliding plate in the fixed sleeve 812, and the other end of the sliding plate is connected to the bottom of the fixed sleeve through a spring 811.
As shown in fig. 1, in the embodiment of the present invention, the telescopic member is a telescopic cylinder 7, the telescopic cylinders 7 are independently telescopic, two ends of the telescopic member are sequentially rotatably connected to a connecting member and a movable plate 8, wherein the connecting member is a connecting seat 6 for adjusting a rotation angle of the correspondingly connected movable plate 8, so that the movable plate 8 can be adapted according to an actual shape of the to-be-measured member.
As shown in fig. 3, in the embodiment of the present invention, the moving assembly 9 includes a driving bevel gear 91 and a plurality of screw rods 93, the plurality of screw rods 93 are rotatably connected to the workbench 1 and form a screw pair transmission with the corresponding sliding block 4, the plurality of screw rods 93 are engaged with the driving bevel gear 91 through a driven bevel gear 92 disposed at one end of the screw rods 93, the driving bevel gear rotates through a rotating motor disposed on the workbench 1 to drive the plurality of screw rods 93 to rotate, and the sliding block 4 is driven to slide along a sliding groove 101 on the workbench 1;
in the utility model discloses simultaneously, sliding block 4 is connected with elevating platform 5, through the lift of elevating platform 5, adjusts the height of clamping jaw structure, elevating platform 5 can select to use and drive actuating cylinder or other parts that have the driving force and so on.
As shown in fig. 1, in the embodiment of the present invention, a placing seat 3 for placing a to-be-tested object is disposed on the working platform 1, and the placing seat 3 is disposed on an upper portion of the moving assembly 9.
Compared with the prior art, the utility model designs the plurality of independently compressible abutting columns 814 on the movable plate 8, when the movable plate is abutted and fixed with the to-be-detected piece, the plurality of abutting columns 814 are contacted with the surface of the irregular to-be-detected piece and are compressed to different degrees, and the angle of the corresponding movable plate 8 is adjusted through the telescopic piece so as to adapt to the fixation of the to-be-detected pieces with different shapes, thereby avoiding the problem that the fixing capability of the existing EMC test clamp for the irregular to-be-detected piece is weaker.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (6)

1. The clamp for the EMC test is placed on an operation table and is characterized by comprising a fixing structure and clamping jaw structures, wherein the fixing structure comprises a fixing part, and the clamping jaw structures are arranged on one side of the fixing part and are used for being matched with the fixing part to fix a to-be-tested part;
the clamping jaw structure includes three articulated fly leaf in proper order, the fly leaf is equipped with a plurality of butt posts towards piece one side that awaits measuring, on the butt post passes through elasticity subassembly elastic connection fly leaf, wherein be located the centre the fly leaf passes through the connecting piece and is connected with the elevating platform, two in both sides the fly leaf corresponds and sets up the extensible member on the connecting piece and is connected, the extensible member will be used for driving the fly leaf and rotates, the elevating platform bottom is connected with the sliding block on the operation platform, the sliding block drives the removal through removing the subassembly.
2. The clamp for the EMC test of claim 1, wherein the fixing member is a fixing plate, the fixing plate is fixedly installed on the workbench, and a soft anti-slip pad is arranged on the fixing plate facing the side of the to-be-tested member.
3. The fixture for EMC testing of claim 1, wherein the elastic member includes a fixed sleeve and a movable rod, wherein one side of the fixed sleeve is fixedly mounted on the movable plate, the other end of the fixed sleeve is provided with a mounting hole slidably connected with the movable rod, one end of the movable rod is connected with the abutting column, the other end of the movable rod acts in the fixed sleeve and is connected with one side of a sliding plate in the fixed sleeve, and the other end of the sliding plate is connected with the bottom of the fixed sleeve through a spring.
4. The clamp for the EMC test of claim 1, wherein the telescopic member is a telescopic cylinder, and a plurality of telescopic cylinders are independently telescopic and used for adjusting a rotation angle of the corresponding connected movable plate.
5. The fixture for EMC testing of claim 1, wherein the moving assembly comprises a driving bevel gear and a plurality of screws, the plurality of screws are rotatably connected to the worktable and form a thread pair transmission with corresponding sliding blocks, the plurality of screws are engaged with the driving bevel gear through a driven bevel gear provided at one end of the plurality of screws, and the driving bevel gear is used for driving the plurality of screws to rotate.
6. The clamp for the EMC test of any one of claims 1-5, wherein a placing seat for placing a to-be-tested object is arranged on the workbench, and the placing seat is arranged at the upper part of the moving assembly.
CN202121873427.4U 2021-08-11 2021-08-11 Clamp for EMC test Active CN215548129U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121873427.4U CN215548129U (en) 2021-08-11 2021-08-11 Clamp for EMC test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121873427.4U CN215548129U (en) 2021-08-11 2021-08-11 Clamp for EMC test

Publications (1)

Publication Number Publication Date
CN215548129U true CN215548129U (en) 2022-01-18

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ID=79834635

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121873427.4U Active CN215548129U (en) 2021-08-11 2021-08-11 Clamp for EMC test

Country Status (1)

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CN (1) CN215548129U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114367850A (en) * 2022-03-04 2022-04-19 贵阳黔江宏宇机械设备有限公司 Processing clamp based on tobacco machinery special-shaped parts
CN117232763A (en) * 2023-11-13 2023-12-15 哈尔滨安宇迪航空工业股份有限公司 Aviation frock vibration testing arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114367850A (en) * 2022-03-04 2022-04-19 贵阳黔江宏宇机械设备有限公司 Processing clamp based on tobacco machinery special-shaped parts
CN117232763A (en) * 2023-11-13 2023-12-15 哈尔滨安宇迪航空工业股份有限公司 Aviation frock vibration testing arrangement

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