CN112421343B - Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector - Google Patents

Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector Download PDF

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Publication number
CN112421343B
CN112421343B CN202011238940.6A CN202011238940A CN112421343B CN 112421343 B CN112421343 B CN 112421343B CN 202011238940 A CN202011238940 A CN 202011238940A CN 112421343 B CN112421343 B CN 112421343B
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hole
closing
inner conductor
centering mechanism
metal
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CN112421343A (en
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刘长春
赵建波
张洁
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40th Institute Of China Electronics Technology Corp
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40th Institute Of China Electronics Technology Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention discloses a closing-up clamp of a conductor in a slotted hole of a radio frequency coaxial connector, which comprises a guiding closing-up mechanism and a centering mechanism, wherein the guiding closing-up mechanism is arranged on the guiding closing-up mechanism; the guide closing-in mechanism comprises a metal base body and a through hole which vertically penetrates through the metal base body, the through hole is divided into a cylindrical guide hole, an inverted conical closing-in hole and a centering mechanism mounting hole from top to bottom, the centering mechanism mounting hole is divided into an upper part and a lower part, the upper part of the centering mechanism mounting hole is a metal pin inserting hole, and the lower part of the centering mechanism mounting hole is an internal thread hole; centering mechanism is including metal connecting screw and the metal contact pin that is fixed in metal connecting screw top, and centering mechanism mounting hole, back taper throat are passed in proper order and are located the bottom of cylindrical guiding hole in the top of metal contact pin, and metal connecting screw threaded connection is in the lower part of centering mechanism mounting hole. The guiding closing-in mechanism and the centering mechanism are matched for closing in, so that four lobes of the conductor in the opening with four grooves are deformed uniformly and consistently, and the closing-in consistency and the qualification rate are improved.

Description

Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector
Technical Field
The invention relates to the technical field of radio frequency coaxial connectors, in particular to a closing-up clamp for a conductor in a slotted radio frequency coaxial connector.
Background
The conductor in the groove of the radio frequency coaxial connector adopts a groove closing method to ensure elastic contact during connection, and the jack requires large contact area and small contact pressure, and generally adopts a two-groove or four-groove structure. Compared with the slotted inner conductor with two slots, the slotted inner conductor with four slots causes less nonlinear matching damage during assembly, so that the current high-performance radio frequency coaxial connector adopts the slotted inner conductor with four slots.
The size of the opening of the conductor is one of the main factors influencing the insertion and extraction force of the inner conductor. The magnitude of the insertion and extraction force is inversely proportional to the service life of the adapter, and the larger the insertion and extraction force is, the shorter the service life of the adapter is; the smaller the insertion and extraction force, the longer the service life of the adapter. However, if the insertion and extraction force of the inner conductor is too small, the probability of electrical failure of the rf coaxial connector is high. Therefore, a reasonable insertion and extraction force of the conductor in the slot is required to meet the requirements of the service life and the electrical performance of the adapter, and the insertion and extraction force of the conductor in the slot is directly related to the size of the opening.
At present, the closing-in of the conductor in the slotted hole is generally realized by adopting a manual closing-in mode or a trapezoidal groove clamp closing-in mode. The manual closing-in technology is that an operator directly uses tools such as tweezers to act on the conductor in the open groove to deform the conductor, and then the conductor is placed into heat treatment equipment to carry out heat treatment. The closing-in technology can not accurately control the closing-in of the conductor in the slotted hole, so that the deformation of each flap is uneven, the closing-in precision is poor, and the closing-in consistency is difficult to guarantee. The trapezoidal groove clamp necking technology is characterized in that a trapezoidal necking groove and a sheet centering device are adopted, a conductor in an opening groove is pressed into the trapezoidal groove, and centering is carried out by the sheet centering device, so that necking can be realized; and taking out the conductor in the open groove after the closing is finished, and putting the conductor in heat treatment equipment for heat treatment. For conductors in the two grooves, closing up can be completed by one-time operation; for the conductors in the grooves with the four grooves, the closing-in can be completed by carrying out two operations. Because the dovetail groove clamp closing-in technology has no guide device, all the flaps formed after slotting are not uniformly deformed during closing-in, and closing-in consistency is poor; in addition, after the conductor in the slot is closed, the conductor needs to be separated from the clamp for heat treatment, and the conductor in the slot can generate a rebound phenomenon, so that the closing consistency is poor.
Disclosure of Invention
The invention aims to provide a closing-in clamp for a slotted inner conductor of a radio frequency coaxial connector, which improves the closing-in consistency and qualification rate of the slotted inner conductor.
The technical scheme of the invention is as follows:
a closing-in clamp for a conductor in a slotted hole of a radio frequency coaxial connector comprises a guiding closing-in mechanism and a centering mechanism; the guide closing-in mechanism comprises a metal base body and a perforation which vertically penetrates through the metal base body, the perforation is divided into three parts from top to bottom, namely a cylindrical guide hole, an inverted cone-shaped closing-in hole and a centering mechanism mounting hole, the aperture value of the cylindrical guide hole is larger than the maximum outer diameter value of the slotted inner conductor and is adjacent to the maximum outer diameter value of the slotted inner conductor, the aperture value of the top end of the inverted cone-shaped closing-in hole is equal to the aperture value of the cylindrical guide hole, the aperture value of the bottom end of the inverted cone-shaped closing-in hole is equal to the outer aperture value of the slotted inner conductor after closing in, the hole depth of the inverted cone-shaped closing-in hole is equal to the length of a closing-in deformation part of the slotted inner conductor, the centering mechanism mounting hole is divided into an upper part and a lower part, the upper part of the centering mechanism mounting hole is a metal inserting hole, and the lower part of the centering mechanism mounting hole is an inner threaded hole; centering mechanism including metal connecting screw and the metal contact pin that is fixed in metal connecting screw top, metal connecting screw's external diameter value be greater than metal contact pin's external diameter value, metal contact pin's top passes centering mechanism mounting hole, back taper binding off hole in proper order and is located the bottom of cylindrical guiding hole, metal contact pin's external diameter equals the interior hole diameter value after the slotted inner conductor binding off, metal connecting screw threaded connection in the lower part of centering mechanism mounting hole.
The necking-in clamp further comprises a metal cover plate, the metal cover plate is provided with jacks, the slotted inner conductor is divided into an upper part and a lower part, the slotted necking-in part of the slotted inner conductor is positioned at the lower part of the slotted inner conductor, the outer diameter of the upper part of the slotted inner conductor is smaller than that of the lower part of the slotted inner conductor, a step surface is formed between the upper part of the slotted inner conductor and the lower part of the slotted inner conductor, and the jacks on the metal cover plate penetrate through the upper part of the slotted inner conductor and the lower end surface of the metal cover plate to be in contact with the step surface of the slotted inner conductor.
The bottom end face of the centering mechanism is provided with a wrench groove, so that the positioning wrench can drive the metal connecting screw to be connected in the lower part of the mounting hole of the centering mechanism in a threaded manner.
The top of the metal contact pin of the centering mechanism is of a conical boss structure, so that the conductor in the slotted hole can be conveniently inserted into the metal contact pin.
The metal base body of the guiding closing-in mechanism is provided with a plurality of through holes which are communicated up and down, each through hole comprises a cylindrical guiding hole, an inverted cone-shaped closing-in hole and a centering mechanism mounting hole, each through hole is connected with a corresponding centering mechanism, the metal cover plate is provided with a plurality of jacks, and when the conductor is closed in the groove, the jacks on the metal cover plate and the through holes on the metal base body of the guiding closing-in mechanism are overlapped one by one.
The invention has the advantages that:
(1) the guide closing-in mechanism is arranged to axially position the closing-in of the conductor in the slotted hole, the centering mechanism centers the closing-in of the conductor in the slotted hole, and the guide closing-in mechanism and the centering mechanism are matched to close the opening, so that four lobes of the conductor in the slotted hole with four slots are deformed uniformly and consistently, and the closing-in consistency and the qualification rate are improved;
(2) the guide closing-in mechanism is provided with the cylindrical guide hole, so that the phenomenon of deflection when the slotted inner conductor is pressed in is avoided, the shape and the size of the closed-in part of the slotted inner conductor are limited by the shape and the size of the inverted conical closing-in hole and the shape and the size of the contact pin, and the closing-in precision is ensured;
(3) the centering mechanism and the guide closing mechanism are of detachable connection structures, and when the guide closing mechanism or the centering mechanism is damaged, the damaged part can be replaced, so that the utilization rate of the clamp is improved, and the cost is reduced;
(4) after the conductors in the slotted holes are pressed into the closing-in clamp, the conductors in the slotted holes and the closing-in clamp are jointly placed into the heat treatment equipment, the rebound phenomenon generated when the conductors in the slotted holes are placed into the heat treatment equipment independently is avoided, and the closing-in consistency of the conductors in the slotted holes is improved.
Drawings
Fig. 1 is a diagram of the structure of the conductor in the slotted channel after crimping.
Fig. 2 is a schematic diagram of the structure of the invention for closing the conductors in the slots.
Fig. 3 is a schematic structural diagram of the guiding closing-in mechanism of the invention.
Fig. 4 is a schematic structural view of the centering mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the slotted inner conductor 1 of the radio frequency coaxial connector is divided into an upper part 11 and a lower part 12, the slotted closing part of the slotted inner conductor is positioned at the lower part 12 of the slotted inner conductor, the outer diameter of the upper part 11 of the slotted inner conductor is smaller than that of the lower part 12 of the slotted inner conductor, and a step surface is formed between the upper part 11 of the slotted inner conductor and the lower part 12 of the slotted inner conductor.
Referring to fig. 2-4, a necking clamp for a slotted inner conductor of a radio frequency coaxial connector comprises a guiding necking mechanism 2, a centering mechanism 3 and a metal cover plate 4;
the guide closing-in mechanism 2 comprises a metal base body 21 and a perforation vertically penetrating through the metal base body 21, the perforation is divided into three parts from top to bottom, namely a cylindrical guide hole 22, an inverted cone-shaped closing-in hole 23 and a centering mechanism mounting hole, the aperture value of the cylindrical guide hole 22 is larger than the maximum outer diameter value of the slotted inner conductor 1 and is adjacent to the maximum outer diameter value of the slotted inner conductor 1, the aperture value of the top end of the inverted cone-shaped closing-in hole 23 is equal to the aperture value of the cylindrical guide hole 22, the aperture value of the bottom end of the inverted cone-shaped closing-in hole 23 is equal to the outer aperture value of the slotted inner conductor 1 after closing in, the hole depth of the inverted cone-shaped closing-in hole 23 is equal to the length of the closing-in deformation part of the slotted inner conductor 1, the centering mechanism mounting hole is divided into an upper part and a lower part, the upper part of the centering mechanism mounting hole is a metal pin insertion hole 24, and the lower part of the centering mechanism mounting hole is an internal threaded hole 25;
the centering mechanism 3 comprises a metal connecting screw rod 31 and a metal contact pin 32 fixed at the top end of the metal connecting screw rod 31, the top of the metal contact pin 32 is a conical boss structure 33, so that the slotted inner conductor 1 can be conveniently inserted into the metal contact pin 32, the outer diameter value of the metal connecting screw rod 31 is larger than the outer diameter value of the metal contact pin 32, the top of the metal contact pin 32 sequentially penetrates through a centering mechanism mounting hole and an inverted cone-shaped closing hole 23 and is positioned at the bottom of the cylindrical guide hole 22, the maximum outer diameter of the metal contact pin 32 is equal to the inner diameter value of the closed slotted inner conductor 1, a wrench groove 34 is formed in the bottom end surface of the centering mechanism, and a positioning wrench is convenient to drive the metal connecting screw rod 31 to be in the inner threaded hole 25 in a threaded manner;
the metal cover plate 4 is provided with a jack, the jack on the metal cover plate 4 penetrates through the upper part 11 of the slotted inner conductor 1, and the lower end face of the metal cover plate 4 is in contact with the step face of the slotted inner conductor 1.
The metal base body 21 of the guiding closing-in mechanism 2 is provided with a plurality of through holes which are communicated up and down, each through hole comprises a cylindrical guiding hole 22, an inverted conical closing-in hole 23 and a centering mechanism mounting hole, each through hole is connected with a corresponding centering mechanism 3, the metal cover plate 4 is provided with a plurality of jacks, and when the conductor 1 in the slotted hole is closed, the jacks on the metal cover plate 4 and the through holes on the metal base body 21 of the guiding closing-in mechanism are overlapped up and down one by one; the structure is convenient for putting the plurality of slotted inner conductors 1 in the closing-up clamp into heat treatment equipment for heat treatment, and closing-up treatment is completed.
When the slotted inner conductor 1 is closed up, the metal connecting screw 31 of the centering mechanism 3 is in threaded connection with the internal threaded hole 25 by using a wrench, then the slotted inner conductor 3 is inserted into the cylindrical guide hole 22, then the closed-up part of the lower part 12 of the slotted inner conductor 3 is completely pressed into the inverted cone-shaped closed-up hole 23 for closing up, and meanwhile, the slotted inner conductor 1 is fixed by using the metal cover plate 4. After the fixing is finished, the whole closing-in clamp and the conductor 1 in the groove after the extrusion closing-in are put into heat treatment equipment together for heat treatment, and the closing-in is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a close up anchor clamps of radio frequency coaxial connector fluting inner conductor which characterized in that: comprises a guiding closing mechanism and a centering mechanism; the guide closing-in mechanism comprises a metal base body and a perforation which vertically penetrates through the metal base body, the perforation is divided into three parts from top to bottom, namely a cylindrical guide hole, an inverted cone-shaped closing-in hole and a centering mechanism mounting hole, the aperture value of the cylindrical guide hole is larger than the maximum outer diameter value of the slotted inner conductor and is adjacent to the maximum outer diameter value of the slotted inner conductor, the aperture value of the top end of the inverted cone-shaped closing-in hole is equal to the aperture value of the cylindrical guide hole, the aperture value of the bottom end of the inverted cone-shaped closing-in hole is equal to the outer aperture value of the slotted inner conductor after closing in, the hole depth of the inverted cone-shaped closing-in hole is equal to the length of a closing-in deformation part of the slotted inner conductor, the centering mechanism mounting hole is divided into an upper part and a lower part, the upper part of the centering mechanism mounting hole is a metal inserting hole, and the lower part of the centering mechanism mounting hole is an inner threaded hole; centering mechanism including metal connecting screw and the metal contact pin that is fixed in metal connecting screw top, metal connecting screw's external diameter value be greater than metal contact pin's external diameter value, metal contact pin's top passes centering mechanism mounting hole, back taper closing hole in proper order and is located the bottom of cylindrical guiding hole, metal contact pin's external diameter equals the hole diameter value after the slotted inner conductor closes up, metal connecting screw threaded connection in centering mechanism mounting hole's lower part.
2. The necking clamp for the slotted inner conductor of the radio frequency coaxial connector according to claim 1, wherein: the necking-in clamp further comprises a metal cover plate, the metal cover plate is provided with jacks, the slotted inner conductor is divided into an upper part and a lower part, the slotted necking-in part of the slotted inner conductor is positioned at the lower part of the slotted inner conductor, the outer diameter of the upper part of the slotted inner conductor is smaller than that of the lower part of the slotted inner conductor, a step surface is formed between the upper part of the slotted inner conductor and the lower part of the slotted inner conductor, and the jacks on the metal cover plate penetrate through the upper part of the slotted inner conductor and the lower end surface of the metal cover plate to be in contact with the step surface of the slotted inner conductor.
3. The necking clamp for the slotted inner conductor of the radio frequency coaxial connector according to claim 1, wherein: the bottom end face of the centering mechanism is provided with a wrench groove, so that the positioning wrench can drive the metal connecting screw to be connected in the lower part of the mounting hole of the centering mechanism in a threaded manner.
4. The necking clamp for the slotted inner conductor of the radio frequency coaxial connector according to claim 1, wherein: the top of the metal contact pin of the centering mechanism is of a conical boss structure, so that the conductor in the slotted hole can be conveniently inserted into the metal contact pin.
5. The necking clamp for the slotted inner conductor of the radio frequency coaxial connector according to claim 2, wherein: the metal base body of the guiding closing-in mechanism is provided with a plurality of through holes which are communicated up and down, each through hole comprises a cylindrical guiding hole, an inverted cone-shaped closing-in hole and a centering mechanism mounting hole, each through hole is connected with a corresponding centering mechanism, the metal cover plate is provided with a plurality of jacks, and when the conductor is closed in the groove, the jacks on the metal cover plate and the through holes on the metal base body of the guiding closing-in mechanism are overlapped one by one.
CN202011238940.6A 2020-11-09 2020-11-09 Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector Active CN112421343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011238940.6A CN112421343B (en) 2020-11-09 2020-11-09 Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011238940.6A CN112421343B (en) 2020-11-09 2020-11-09 Closing-in clamp for conductor in slotted groove of radio frequency coaxial connector

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CN112421343A CN112421343A (en) 2021-02-26
CN112421343B true CN112421343B (en) 2022-06-07

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557548A (en) * 1983-12-14 1985-12-10 Amp Incorporated Edge connector for chip carrier
CN102761045A (en) * 2012-07-19 2012-10-31 镇江步云电子有限公司 Insertion core manufacturing process for radiofrequency coaxial connector
CN202977951U (en) * 2012-08-07 2013-06-05 贵州航天电子科技有限公司 Hot shell nosing tool for electric connector jack
CN103887682B (en) * 2013-12-10 2016-05-25 中国电子科技集团公司第四十一研究所 A kind of fixture and closing method of realizing the accurate centering closing in of fluting center conductor

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