CN112186449A - Wiring harness slip ring structure, rotary disc ground wire slip ring device and rotary disc equipment - Google Patents
Wiring harness slip ring structure, rotary disc ground wire slip ring device and rotary disc equipment Download PDFInfo
- Publication number
- CN112186449A CN112186449A CN202011035452.5A CN202011035452A CN112186449A CN 112186449 A CN112186449 A CN 112186449A CN 202011035452 A CN202011035452 A CN 202011035452A CN 112186449 A CN112186449 A CN 112186449A
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- slip ring
- wire harness
- wire
- rotary disk
- ground wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
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- Motor Or Generator Current Collectors (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a wire harness slip ring structure, a rotary disk ground wire slip ring device and rotary disk equipment, which comprise a rotary disk base, a driving device and at least one set of rotary disk ground wire slip ring device, wherein the rotary disk ground wire slip ring device comprises a rotary disk kit, a kit fixing plate, a transmission structure, a rotating shaft and a wire harness slip ring structure; at least a set of wire harness assembly is connected with the wire harness mounting plate, and the sliding ring outer wall is equipped with the annular groove, and at least a set of wire harness assembly places in the annular groove. The wire harness slip ring structure, the rotary disk ground wire slip ring device and the rotary disk equipment solve the technical problems that the ground wire conduction connection of a rotary disk device on the existing test sorting machine is mostly in a spring plate and conductive bearing mode, the spring plate is easy to deform and wear when used, and the service life of the spring plate and the conductive bearing is short.
Description
Technical Field
The invention belongs to the technical field of chip testing, and particularly relates to a wire harness slip ring structure, a rotary disk ground wire slip ring device and rotary disk equipment.
Background
The current vigorous market demand for seal testing puts new demands on the production capacity and production stability of seal testing enterprises.
However, the existing sealing and testing equipment (such as an automatic detection and sorting machine) is difficult to meet the production requirements. The main reason is that the automatic performance of the existing encapsulation equipment is poor, manual or semi-automatic equipment is generally adopted, and the actual requirements of the existing chip encapsulation form and the model for rapidity and variability are difficult to meet.
The ground wire conduction connecting structure of the rotary disc device on the existing test sorting machine is mostly an elastic sheet and a conductive bearing, however, the elastic sheet is easy to deform and wear when used, and the service life is short. The conductive bearing has the advantages of short service life, larger grounding resistance value in operation, resistance value of more than 20 omega, incapability of meeting the requirement of high-requirement chip test grounding resistance value of 1 omega, high replacement time cost, direct standby maintenance time of equipment, influence on productivity and the like.
Disclosure of Invention
In view of the above, the present invention is directed to a wire harness slip ring structure, a rotating disk ground slip ring device and a rotating disk apparatus, which solve the technical problems that the ground wire conduction connection of the rotating disk device on the existing test separator is mostly in the form of a spring plate and a conductive bearing, however, the spring plate is easy to deform and wear when used, and the service life of the spring plate and the conductive bearing is short;
the ground wire conductive connection structure of the rotary disc device on the existing test sorting machine is further solved, in the using process, the ground resistance value is larger and larger in the operation process, the resistance value is more than 20 omega, the high-requirement chip test ground resistance value can not be met for 1 omega, the replacement time cost is high, the standby maintenance time of equipment is long, and the productivity is affected.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a wiring harness slip ring structure comprises a slip ring, a wiring harness mounting plate and at least one group of wiring harness components;
at least one group of wire harness assembly is connected with the wire harness mounting plate, an annular groove is formed in the outer wall of the slip ring, and at least one group of wire harness assembly is placed in the annular groove.
Furthermore, the wire harness assemblies are divided into two groups, the two groups of wire harness assemblies are connected with the wire harness mounting plate, and each wire harness assembly is in contact with the annular groove.
Furthermore, the wire harness assembly comprises at least 5 monofilament wire harnesses, the monofilament wire harnesses form a cylindrical structure, and two adjacent monofilament wire harnesses are arranged in parallel.
Further, the pressure of the wire harness assembly on the annular groove is greater than or equal to 0.25N.
Furthermore, the outer surfaces of each monofilament wire harness and the slip ring of the wire harness assembly are surfaces treated by a gold plating process.
A rotary disk ground wire slip ring device comprises a rotary disk kit, a kit fixing plate, a transmission structure, a rotating shaft and the wire harness slip ring structure;
the rotary disk kit is provided with a central groove capable of being matched with a chip, the rotary disk kit is connected with the rotating shaft through the kit fixing plate, and the transmission structure is detachably connected with the rotating shaft;
and a slip ring in the wire harness slip ring structure is detachably connected with the rotating shaft.
A rotary disk device comprises a rotary disk base, a driving device and at least one set of the rotary disk ground wire slip ring device;
the rotating shaft penetrates through the rotating shaft base, the rotating shaft of each rotating disc ground wire slip ring device is matched with the rotating shaft base through a bearing, and the transmission structure of each rotating disc ground wire slip ring device is connected with the driving device.
Furthermore, the number of the rotary disc ground wire slip rings is even, the even rotary disc ground wire slip ring devices are arranged on the rotating shaft base in a bilateral symmetry mode, a wire harness mounting plate in one rotary disc ground wire slip ring device is connected with a wire harness mounting plate in the other rotary disc ground wire slip ring device through a connecting structure, and the connecting structure is detachably connected with the rotating shaft base.
Furthermore, the connection structure is a wire harness fixing plate, the section of the wire harness fixing plate is C-shaped, the wire harness mounting plate on the same side is connected with one end of the wire harness fixing plate through a bolt, and the wire harness fixing plate is connected with the rotating shaft base through a bolt.
Further, the driving device comprises a motor and a belt, and the output end of the motor is connected with the transmission structure of each rotating disk ground wire slip ring device through the belt.
Compared with the prior art, the wire harness slip ring structure, the rotary disk ground wire slip ring device and the rotary disk equipment have the following advantages:
according to the wire harness sliding ring structure, the rotary disk ground wire sliding ring device and the rotary disk equipment, through the contact between the wire harness assembly in the wire harness sliding ring structure and the sliding ring, excessive abrasion of the wire harness assembly in the rotating process of the sliding ring can be effectively avoided, the service life of the whole structure can be effectively prolonged, the conductivity value of a chip is small, the space occupation of the wire harness sliding ring structure is small, and the replacement cost is low.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of an explosion structure of a rotating disc device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a rotating disk apparatus according to an embodiment of the present invention when the rotating disk apparatus is stationary and rotating;
fig. 3 is a schematic structural diagram of a wire harness slip ring according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rotating disk apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic view of another angular structure of a rotating disk apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a ground slip ring device of a rotating disk according to an embodiment of the present invention.
Description of reference numerals:
1. rotating the disk kit; 2. kit fixation plates; 3. a rotating disk base; 4. a motor; 5. a belt; 6. a transmission structure; 7. a bearing; 8. a rotating shaft; 9. a wire harness assembly; 10. a slip ring; 11. a wire harness fixing plate; 12. fixing screws; 13. fixing screws; 20. and (3) a chip.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
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.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A wire harness slip ring structure is shown in fig. 3 and comprises a slip ring 10, a wire harness mounting plate and at least one group of wire harness components 9;
at least a set of wire harness assembly 9 is connected with the pencil mounting panel, and the sliding ring 10 outer wall is equipped with the annular groove, and at least a set of wire harness assembly 9 is placed in the annular groove, and in this embodiment, wire harness assembly 9 is two sets ofly, and each wire harness assembly 9 of group all is connected with the pencil mounting panel through the installation cover, and under the natural state, each wire harness assembly 9 all blocks and puts in the annular groove. The wire harness assembly 9 comprises at least 5 monofilament wire harnesses, the at least 5 monofilament wire harnesses form a cylindrical structure, two adjacent monofilament wire harnesses are arranged in parallel, and the pressure of the wire harness assembly 9 on the annular groove is larger than or equal to 0.25N. The outer surfaces of each monofilament wire harness and the slip ring 10 of the wire harness assembly 9 are surfaces processed by a gold plating process, so that the wire harness assembly can achieve good friction resistance and have a contact value smaller than 1 omega in the rotary friction for a long time, and the wire harness assembly and the slip ring 10 in the wire harness slip ring structure are in contact with each other, so that the slip ring 10 can be effectively prevented from generating excessive abrasion to the wire harness assembly 9 in the rotating process, the service cycle of the whole structure can be effectively prolonged, the conductivity value of the chip 20 is small, the space of the wire harness slip ring structure occupies a small space, and the replacement cost is low.
The diameter of the single wire harness is 0.12mm, the two groups of the harness assemblies 9 have certain elasticity in a natural state, the distance between the two groups of the harness assemblies 9 is smaller than the diameter of the annular groove, the closer the sliding ring 10 is to the root of the two groups of the harness assemblies 9 in the middle of the two groups of the harness assemblies 9, the larger the contact force between the harness assemblies 9 and the sliding ring 10 is, and the smaller the contact force between the harness assemblies 9 and the sliding ring 10 is, the closer the end of the two groups of the harness assemblies 9 is. According to the above dimensional parameters, the installation distance between the slip ring 10 and the root parts of the two groups of wire harness assemblies 9 is 10.5-11.5 mm, and the contact force is 0.25N. The gold plating process surface improves the defects of the composite metal brush, has small abrasive dust, small volume and good signal transmission stability so as to keep multi-point contact with the metal ring body, and has excellent conductivity and high current density.
A rotary disk ground wire slip ring device is shown in figure 6 and comprises a rotary disk kit1, a kit fixing plate 2, a transmission structure 6, a rotating shaft 8 and the wire harness slip ring structure;
the rotary disk kit1 is provided with a central groove capable of being matched with the chip 20, when the rotary disk kit1 is used, the chip 20 is placed in the central groove of the rotary disk kit1, the direction required by the test is realized through software control rotation, the rotary disk kit1 is connected with the rotary shaft 8 through the kit fixing plate 2, the transmission structure 6 is detachably connected with the rotary shaft 8, and in the embodiment, the transmission structure 6 is a belt wheel;
the slip ring 10 in the wire harness slip ring structure is detachably connected with the rotating shaft 8, and in the embodiment, the slip ring 10 is connected with the rotating shaft 8 through a fixing screw 13.
A rotary disk device, as shown in FIG. 1, comprises a rotary disk base 3, a driving device and at least one set of the above-mentioned rotary disk ground wire slip ring device;
the rotating shaft 8 penetrates through the rotating shaft base 3, the rotating shaft 8 of each rotating disc ground wire slip ring device is matched with the rotating shaft base 3 through a bearing 7, the bearing 7 is fixed on an inner hole of the rotating disc base 3, and the transmission structure 6 of each rotating disc ground wire slip ring device is connected with a driving device.
The number of the rotary disk ground wire slip rings 10 is two, the two rotary disk ground wire slip ring devices are arranged on the rotary shaft base 3 in a bilateral symmetry mode, and a wire harness mounting plate in one rotary disk ground wire slip ring device is connected with a wire harness mounting plate in the other rotary disk ground wire slip ring device through a connecting structure. The connecting structure is a wire harness fixing plate 11, the section of the wire harness fixing plate 11 is C-shaped, a wire harness mounting plate on the same side is connected with the end part of one end of the wire harness fixing plate 11 through a bolt, and the wire harness fixing plate 11 is connected with the rotating shaft base 3 through a bolt.
The driving device comprises a motor 4 and a belt 5, and the output end of the motor 4 is connected with the transmission structure 6 of the ground wire slip ring device of each rotating disk through the belt 5.
Working mode of the example
In production, by test sorting arm, put into the central slot of rotary disk kit1 chip 20, according to software system control, rotatory required direction of realization test, in this embodiment, it is along with rotating to drive the band pulley through belt 5 by motor 4, and then drive the kit fixed plate 2 of rotation axis 8 upper end and also rotate simultaneously, finally rotary disk kit1 also rotates thereupon, chip 20 is put in rotary disk kit1 central slot, according to the rotatory required direction of realization test of software control, rotation axis 8 rotates in-process and drives slip ring 10 and rotate, and then realized installing and carry out kinematic connection at rotary kit1 and pencil subassembly 1 of rotation axis 8 upper end, guarantee chip 20 and the 3 intercommunication of rotating base of splendid attire on the rotary disk kit1 and prevent static ground connection below 1 omega in the rotation, realize preventing because the damage function of static accumulation to chip 20 internal circuit.
In the embodiment, the wire harness is naturally clamped in the sliding ring middle groove, and the surfaces of the wire harness and the sliding ring are subjected to special surface treatment, so that the wire harness and the sliding ring can achieve good friction resistance and contact value in the rotating friction process for a long time
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wire harness slip ring structure is characterized in that: the slip ring structure comprises a slip ring (10), a wiring harness mounting plate and at least one group of wiring harness components (9);
at least one group of wiring harness components (9) are connected with the wiring harness mounting plate, an annular groove is formed in the outer wall of the sliding ring (10), and at least one group of wiring harness components (9) are placed in the annular groove.
2. The wire harness slip ring structure of claim 1, wherein: the wire harness assemblies (9) are divided into two groups, the two groups of wire harness assemblies (9) are connected with the wire harness mounting plate, and each wire harness assembly (9) is in contact with the annular groove.
3. The wire harness slip ring structure of claim 1, wherein: the harness assembly (9) comprises at least 5 monofilament harnesses, the monofilament harnesses form a cylindrical structure, and two adjacent monofilament harnesses are arranged in parallel.
4. A wire harness slip ring structure as claimed in any one of claims 1 to 3, wherein: the pressure of the wire harness assembly (9) against the annular groove is greater than or equal to 0.25N.
5. The wire harness slip ring structure of claim 4, wherein: the outer surfaces of each monofilament wire harness and the slip ring (10) of the wire harness assembly (9) are surfaces treated by a gold plating process.
6. A rotary disk ground wire slip ring device is characterized in that: comprises a rotating disk kit (1), a kit fixing plate (2), a transmission structure (6), a rotating shaft (8) and the wiring harness slip ring structure of any one of claims 1-3 and 5;
the rotary disk kit (1) is provided with a central groove capable of being matched with a chip (20), the rotary disk kit (1) is connected with the rotating shaft (8) through the kit fixing plate (2), and the transmission structure (6) is detachably connected with the rotating shaft (8);
and a slip ring (10) in the wire harness slip ring structure is detachably connected with the rotating shaft (8).
7. A rotating disk apparatus, characterized in that: comprising a turntable base (3), a driving means and at least one set of turntable ground slip ring means as claimed in claim 6;
the rotating shaft (8) penetrates through the rotating shaft base (3), the rotating shaft (8) of each rotating disc ground wire slip ring device is matched with the rotating shaft base (3) through a bearing (7), and a transmission structure (6) of each rotating disc ground wire slip ring device is connected with the driving device.
8. A rotating disk apparatus according to claim 7, wherein: the number of the rotary disc ground wire slip rings (10) is even, the even rotary disc ground wire slip ring devices are arranged on the rotary shaft base (3) in a bilateral symmetry mode, a wire harness mounting plate in the rotary disc ground wire slip ring device on one side is connected with a wire harness mounting plate in the rotary disc ground wire slip ring device on the other side through a connecting structure, and the connecting structure is detachably connected with the rotary shaft base (3).
9. A rotating disk apparatus according to claim 8, wherein: the connecting structure is a wire harness fixing plate (11), the section of the wire harness fixing plate (11) is C-shaped, the wire harness mounting plate on the same side is connected with the end of one end of the wire harness fixing plate (11) through a bolt, and the wire harness fixing plate (11) is connected with the rotating shaft base (3) through a bolt.
10. A rotating disk apparatus according to claim 8, wherein: the driving device comprises a motor (4) and a belt (5), and the output end of the motor (4) is connected with a transmission structure (6) of each rotary disk ground wire slip ring device through the belt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035452.5A CN112186449B (en) | 2020-09-27 | 2020-09-27 | Wiring harness slip ring structure, rotary disc ground wire slip ring device and rotary disc equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035452.5A CN112186449B (en) | 2020-09-27 | 2020-09-27 | Wiring harness slip ring structure, rotary disc ground wire slip ring device and rotary disc equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112186449A true CN112186449A (en) | 2021-01-05 |
| CN112186449B CN112186449B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011035452.5A Active CN112186449B (en) | 2020-09-27 | 2020-09-27 | Wiring harness slip ring structure, rotary disc ground wire slip ring device and rotary disc equipment |
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| CN (1) | CN112186449B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1591985A (en) * | 1977-10-05 | 1981-07-01 | Sodeco Compteurs De Geneve | Coin tester |
| JP2002108037A (en) * | 2000-09-29 | 2002-04-10 | Ricoh Co Ltd | Image forming device |
| CN202395287U (en) * | 2011-12-09 | 2012-08-22 | 杭州驰宏科技有限公司 | Novel electric brush |
| CN103551319A (en) * | 2013-10-24 | 2014-02-05 | 大连华工创新科技股份有限公司 | Detection and cutting equipment for diaphragm material |
| CN205985696U (en) * | 2016-08-30 | 2017-02-22 | 四川汉威电气有限责任公司 | Basic carbon brush of silver adds communication sliding ring of fine brush |
| CN108551064A (en) * | 2018-04-26 | 2018-09-18 | 陕西旋星电子科技有限公司 | Fiber brush bundle slip ring assembly |
| CN109794430A (en) * | 2019-03-14 | 2019-05-24 | 苏州紫宏智能物流装备系统有限公司 | A kind of rotational automatic sorter |
| CN209692514U (en) * | 2019-03-14 | 2019-11-26 | 苏州紫宏智能物流装备系统有限公司 | A kind of rotational automatic sorter center of turntable rotary drive structure |
| CN110508500A (en) * | 2019-09-20 | 2019-11-29 | 深圳市标王工业设备有限公司 | Multistation chip testing sorting machine |
-
2020
- 2020-09-27 CN CN202011035452.5A patent/CN112186449B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1591985A (en) * | 1977-10-05 | 1981-07-01 | Sodeco Compteurs De Geneve | Coin tester |
| JP2002108037A (en) * | 2000-09-29 | 2002-04-10 | Ricoh Co Ltd | Image forming device |
| CN202395287U (en) * | 2011-12-09 | 2012-08-22 | 杭州驰宏科技有限公司 | Novel electric brush |
| CN103551319A (en) * | 2013-10-24 | 2014-02-05 | 大连华工创新科技股份有限公司 | Detection and cutting equipment for diaphragm material |
| CN205985696U (en) * | 2016-08-30 | 2017-02-22 | 四川汉威电气有限责任公司 | Basic carbon brush of silver adds communication sliding ring of fine brush |
| CN108551064A (en) * | 2018-04-26 | 2018-09-18 | 陕西旋星电子科技有限公司 | Fiber brush bundle slip ring assembly |
| CN109794430A (en) * | 2019-03-14 | 2019-05-24 | 苏州紫宏智能物流装备系统有限公司 | A kind of rotational automatic sorter |
| CN209692514U (en) * | 2019-03-14 | 2019-11-26 | 苏州紫宏智能物流装备系统有限公司 | A kind of rotational automatic sorter center of turntable rotary drive structure |
| CN110508500A (en) * | 2019-09-20 | 2019-11-29 | 深圳市标王工业设备有限公司 | Multistation chip testing sorting machine |
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| CN112186449B (en) | 2022-06-24 |
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Address after: 300384 A106, No.8 Wuhua Road, Huayuan Industrial Zone, Binhai New Area, Tianjin Applicant after: Tianjin jinhaitong Semiconductor Equipment Co.,Ltd. Address before: 300384 industrial incubation-2, North 2-504, No. 18, Haitai West Road, Huayuan Industrial Zone, hi tech Zone, Binhai New Area, Tianjin Applicant before: JHT DESIGN Co.,Ltd. |
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