CN108832248B - Manufacturing process of radio frequency cable - Google Patents
Manufacturing process of radio frequency cable Download PDFInfo
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- CN108832248B CN108832248B CN201810588888.3A CN201810588888A CN108832248B CN 108832248 B CN108832248 B CN 108832248B CN 201810588888 A CN201810588888 A CN 201810588888A CN 108832248 B CN108832248 B CN 108832248B
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- radio frequency
- frequency cable
- extrusion molding
- outer sheath
- clamping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
- H01P11/005—Manufacturing coaxial lines
Abstract
The invention discloses a manufacturing process of a radio frequency cable, which comprises the following steps: 1) cooling and drying the radio frequency cable from the extrusion molding mechanism; 2) and detecting defects of the outer sheath of the dried radio frequency cable, and when the outer sheath is detected to have defects: grinding the outer sheath periphery corresponding to the defect area by using a grinding wheel; refilling the abraded area with insulating material by supplementary extrusion; cooling and drying the radio frequency cable subjected to the supplementary extrusion molding again; detecting defects of the outer sheath of the supplementary extrusion molding area; 3) and winding the radio frequency cable. When the manufacturing process detects that the outer sheath has the defect, the defective part of the outer sheath can be polished on line, and then the polished area is supplemented with extrusion molding.
Description
The application is a divisional application with the application date of 2016, 04, 28 and the application number of 201610279064.9, and the name of the invention is 'manufacturing process of radio frequency cable'.
Technical Field
The invention relates to the field of cables, in particular to a manufacturing process of a radio frequency cable.
Background
Radio frequency cables are cables that transmit electromagnetic energy in the radio frequency range, are indispensable components in various radio communication systems and electronic devices, and have wide applications in wireless communication, broadcasting, television, radar, navigation, computers, meters, and the like.
The radio frequency cable sequentially comprises an inner conductor, a foaming layer, an outer conductor and an outer sheath from inside to outside. Wherein, radio frequency cable's oversheath passes through extrusion molding mechanism extrusion molding, extrusion temperature, mould surface cleanliness factor, insulating material's cleanliness factor etc. all can influence insulating material's extrusion performance, all probably cause insulation defect, this kind of defect will seriously influence radio frequency cable's product quality, in the current radio frequency cable production process, can carry out the defect detection to the radio frequency cable that the extrusion molding is good, mark defect area, the later stage is handled finished product radio frequency cable again, the post processing process is as follows: and stretching the radio frequency cable, removing impurities from the defect area, and finally pressing the same kind of insulating material on the defect area through a thermoplastic gun.
The existing treatment mode needs to re-pull out the rolled finished product radio frequency cable for treatment, increases the post-treatment process and has lower efficiency.
Disclosure of Invention
The invention provides a manufacturing process of a radio frequency cable aiming at the problems, which can process the defective area of an outer sheath on line.
The technical scheme adopted by the invention is as follows:
a process for manufacturing a radio frequency cable comprising the steps of:
1) cooling and drying the radio frequency cable from the extrusion molding mechanism;
2) and detecting defects of the outer sheath of the dried radio frequency cable, and when the outer sheath is detected to have defects:
grinding the outer sheath periphery corresponding to the defect area by using a grinding wheel;
refilling the abraded area with insulating material by supplementary extrusion;
cooling and drying the radio frequency cable subjected to the supplementary extrusion molding again;
detecting defects of the outer sheath of the supplementary extrusion molding area;
3) and winding the radio frequency cable.
When the manufacturing process detects that the outer sheath has the defect, the defective part of the outer sheath can be polished on line, and then the polished area is supplemented with extrusion molding.
In order to effectively guarantee the processing quality of the radio frequency cable, the outer sheath of the supplement extrusion molding area is subjected to defect detection, when the defect is detected, recording is carried out, and the area is processed at the later stage.
Optionally, the step 2) is performed by a defect repair apparatus, where the defect repair apparatus includes:
the first defect detection mechanism is used for carrying out defect detection on the outer sheath of the radio frequency cable;
a base;
the moving frame is arranged on the base in a sliding mode;
the driving mechanism is used for driving the moving frame and the radio frequency cable to move at the same speed;
the two groups of clamping mechanisms are arranged on the movable frame and are used for respectively clamping the radio frequency cables on two sides of the defect area;
the two mechanical arms are arranged on the movable frame, the end parts of the mechanical arms are provided with grinding wheels, and the mechanical arms are used for controlling the grinding wheels to grind the outer sheaths of the defect areas;
the supplementary extrusion molding mechanism is used for re-extruding the defective area of the outer sheath;
the secondary cooling mechanism is used for cooling the radio frequency cable;
the secondary drying mechanism is used for drying the outer surface of the radio frequency cable;
and the second defect detection mechanism is used for detecting the defects of the outer sheath in the supplementary extrusion molding area.
When the first defect detection mechanism detects that the outer sheath has a defect, the driving mechanism drives the movable frame to move at the same speed as the radio frequency cable, then the clamping mechanism works to clamp the radio frequency cables on two sides of the defect area respectively, then the two mechanical hands control the grinding wheel to polish the outer sheath of the defect area, the clamping mechanism can ensure that the radio frequency cable is not deformed or bent when being pressed to polish, and the matching of the two mechanical hands can polish the corresponding area for 360 degrees.
The polished radio frequency cable is extruded again through the supplementary extrusion molding mechanism in sequence, secondary cooling and drying are carried out through the secondary cooling mechanism and the secondary drying mechanism, and finally detection is carried out through the second defect detection mechanism, so that defects are eliminated under normal conditions; when the device is out of order, the defect is caused after re-extrusion, at the moment, the second defect detection mechanism records the defect position, and the defect position is processed at the later stage.
In order to ensure that the moving frame and the radio frequency cable move at the same speed, the moving speed of the radio frequency cable needs to be monitored, when the radio frequency cable conveying device is operated, a Hall sensor is arranged on a driving wheel or a rotating wheel of the radio frequency cable in a production line to sense the rotating speed of the driving wheel, the conveying speed of the radio frequency cable can be obtained through conversion, and at the moment, only a driving mechanism needs to be controlled, so that the speed of the moving frame is the same as the conveying speed of the radio frequency cable. In practical application, the transmission speed of the radio frequency cable can be obtained in other modes.
Optionally, the base has a slide rail and a rack, the movable frame is in sliding fit with the slide rail, the driving mechanism is a driving motor, and an output shaft of the driving motor is engaged with the rack through a gear.
Optionally, each group of clamping mechanisms comprises:
the lifting column is arranged on the moving frame;
the two clamping blocks are uniformly distributed along the periphery of the radio frequency cable, the end faces, facing the radio frequency cable, of the clamping blocks are provided with clamping grooves, the length directions of the clamping grooves are parallel to the length direction of the sliding rail, and the cross sections of the clamping grooves are semicircular;
the two cylinders are fixed at the upper ends of the corresponding lifting columns, piston rods of the cylinders are fixed relative to the corresponding clamping blocks, and the two cylinders are matched with each other and used for pushing the two clamping blocks to approach each other and clamp the radio frequency cable.
The cylinder is arranged at the upper end of the lifting column, the heights of the cylinder and the clamping block can be adjusted through the lifting column, and the device can adapt to radio frequency cables with various heights; the clamping grooves of the two clamping blocks are matched with the radio frequency cable, so that the radio frequency cable can be firmly clamped, and the subsequent polishing operation is facilitated; the cross section of centre gripping groove is semi-circular, is cylindrical after two centre gripping grooves cooperate, and this kind of structural style can guarantee that grip block and radio frequency cable have the biggest area of contact.
Optionally, a positioning structure is arranged between the two clamping blocks of each group of clamping mechanisms, and the positioning structure comprises a positioning column arranged on one clamping block and a positioning hole arranged on the other clamping block; the positioning columns are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks, and the positioning holes are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks.
The two clamping blocks can be reliably positioned through the positioning structure, and the clamping effect is ensured.
Optionally, the base has two slide rails that are parallel to each other, removes the frame including distributing left side frame and the right side frame in the radio frequency cable both sides, and left side frame and right side frame cooperate with the slide rail that corresponds respectively, and left side frame and right side frame are through connecting rod relatively fixed.
The structural style of the left frame and the right frame is convenient to maintain, and the left frame and the right frame can be guaranteed to move synchronously through the connecting rod.
Optionally, the supplemental extrusion mechanism includes an extrusion die, the extrusion die including:
a hollow first mold core;
the die sleeve is coaxial with the first die core and comprises a conical inner side wall and a cylindrical inner side wall which are connected with each other, and the small-diameter end of the conical inner side wall is connected with the cylindrical inner side wall; the first mold core is sleeved in the mold sleeve, and an extrusion molding channel is formed between the outer side wall of the first mold core and the conical inner side wall of the mold sleeve;
and the hollow second mold core is coaxially arranged with the mold sleeve and is relatively fixed, and the inner side wall of the second mold core is connected with the cylindrical inner side wall of the mold sleeve.
When the defect area passes through the extrusion molding die, the liquid insulating plastic is pressurized and pressed into the defect area through the extrusion molding channel, and the supplementary extrusion molding process is completed; the size of the supplementary extrusion molding area can be limited by arranging the second mold core, and the precision requirement is ensured.
The invention has the beneficial effects that: when the manufacturing process detects that the outer sheath has the defect, the outer sheath can be polished at the defective position on line and then extruded again, and the manufacturing process can avoid processing the radio frequency cable in the later period and effectively improve the production efficiency of the radio frequency cable.
Description of the drawings:
FIG. 1 is a flow chart of a process for manufacturing the radio frequency cable of the present invention;
FIG. 2 is a schematic structural view of a defect repair apparatus;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of an extrusion die;
fig. 5 is a schematic view of an extrusion die in cooperation with a radio frequency cable.
The figures are numbered:
1. the device comprises a first defect detection mechanism, 2, a radio frequency cable, 3, a base, 4, a moving frame, 5, a clamping mechanism, 6, a manipulator, 7, a rack, 8, a sliding rail, 9, a supplementary extrusion molding mechanism, 10, a secondary cooling mechanism, 11, a secondary drying mechanism, 12, a second defect detection mechanism, 13, a left frame, 14, a connecting rod, 15, a right frame, 16, a lifting column, 17, a cylinder, 18, a clamping block, 19, a clamping groove, 20, a positioning column, 22, a grinding wheel, 23, a first mold core, 24, a mold sleeve, 25, a second mold core, 26, an extrusion molding channel, 27, a conical inner side, 28 and a cylindrical inner side wall.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a manufacturing process of a radio frequency cable includes the following steps:
1) cooling and drying the radio frequency cable from the extrusion molding mechanism;
2) and detecting defects of the outer sheath of the dried radio frequency cable, and when the outer sheath is detected to have defects:
grinding the outer sheath periphery corresponding to the defect area by using a grinding wheel;
refilling the abraded area with insulating material by supplementary extrusion;
cooling and drying the radio frequency cable subjected to the supplementary extrusion molding again;
detecting defects of the outer sheath of the supplementary extrusion molding area;
3) and winding the radio frequency cable.
When the manufacturing process detects that the outer sheath has the defect, the defective part of the outer sheath can be polished on line, and then the polished area is supplemented with extrusion molding.
In order to effectively guarantee the processing quality of the radio frequency cable, the outer sheath of the supplement extrusion molding area is subjected to defect detection, when the defect is detected, recording is carried out, and the area is processed at the later stage.
As shown in fig. 2 and 3, in the present embodiment, the step 2) is performed by a defect repair apparatus including:
the first defect detection mechanism 1 is used for carrying out defect detection on the outer sheath of the radio frequency cable 2;
a base 3;
the movable frame 4 is arranged on the base in a sliding mode;
the driving mechanism is used for driving the movable frame and the radio frequency cable to move at the same speed;
the two groups of clamping mechanisms 5 are arranged on the movable frame 4 and are used for respectively clamping the radio frequency cables on two sides of the defect area;
the two mechanical hands 6 are arranged on the movable frame, the end parts of the mechanical hands are provided with grinding wheels 22, and the mechanical hands are used for controlling the grinding wheels to grind the outer sheaths of the defect areas;
a supplementary extrusion mechanism 9 for re-extruding the defective area of the outer sheath;
a secondary cooling mechanism 10 for cooling the radio frequency cable;
the secondary drying mechanism 11 is used for drying the outer surface of the radio frequency cable;
and the second defect detection mechanism 12 is used for carrying out defect detection on the outer sheath of the supplementary extrusion molding area.
When the first defect detection mechanism detects that the outer sheath has a defect, the driving mechanism drives the movable frame to move at the same speed as the radio frequency cable, then the clamping mechanism works to clamp the radio frequency cables on two sides of the defect area respectively, then the two mechanical hands control the grinding wheel to polish the outer sheath of the defect area, the clamping mechanism can ensure that the radio frequency cable is not deformed or bent when being pressed to polish, and the matching of the two mechanical hands can polish the corresponding area for 360 degrees.
The polished radio frequency cable is extruded again through the supplementary extrusion molding mechanism in sequence, secondary cooling and drying are carried out through the secondary cooling mechanism and the secondary drying mechanism, and finally detection is carried out through the second defect detection mechanism, so that defects are eliminated under normal conditions; when the device is out of order, the defect is caused after re-extrusion, at the moment, the second defect detection mechanism records the defect position, and the defect position is processed at the later stage.
In order to ensure that the moving frame and the radio frequency cable move at the same speed, the moving speed of the radio frequency cable needs to be monitored, during specific operation, a Hall sensor is arranged on a driving wheel or a rotating wheel of the radio frequency cable in a production line to sense the rotating speed of the driving wheel, the conveying speed of the radio frequency cable can be obtained through conversion, and at the moment, only a driving mechanism needs to be controlled, so that the speed of the moving frame is the same as the conveying speed of the radio frequency cable. In practical application, the transmission speed of the radio frequency cable can be obtained in other modes.
As shown in fig. 2 and 3, in the present embodiment, the base 3 has a slide rail 8 and a rack 7, the movable frame 4 is slidably engaged with the slide rail, the driving mechanism is a driving motor, and an output shaft of the driving motor is engaged with the rack through a gear.
As shown in fig. 3, in the present embodiment, each set of clamping mechanisms 5 includes:
a lifting column 16 mounted on the moving frame;
the two clamping blocks 18 are uniformly distributed along the periphery of the radio frequency cable, the end faces, facing the radio frequency cable, of the clamping blocks are provided with clamping grooves 19, the length directions of the clamping grooves are parallel to the length direction of the sliding rail, and the cross sections of the clamping grooves are semicircular;
and the two cylinders 17 are fixed at the upper ends of the corresponding lifting columns, the piston rods of the cylinders are relatively fixed with the corresponding clamping blocks, and the two cylinders are matched with each other and used for pushing the two clamping blocks to mutually approach and clamp the radio frequency cable.
The cylinder is arranged at the upper end of the lifting column, the heights of the cylinder and the clamping block can be adjusted through the lifting column, and the device can adapt to radio frequency cables with various heights; the clamping grooves of the two clamping blocks are matched with the radio frequency cable, so that the radio frequency cable can be firmly clamped, and the subsequent polishing operation is facilitated; the cross section of centre gripping groove is semi-circular, is cylindrical after two centre gripping grooves cooperate, and this kind of structural style can guarantee that grip block and radio frequency cable have the biggest area of contact.
As shown in fig. 3, in the present embodiment, a positioning structure is provided between two clamping blocks of each group of clamping mechanisms, and the positioning structure includes a positioning column 20 disposed on one of the clamping blocks and a positioning hole disposed on the other clamping block; the positioning columns are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks, and the positioning holes are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks. The two clamping blocks can be reliably positioned through the positioning structure, and the clamping effect is ensured.
As shown in fig. 3, in this embodiment, the base 3 has two parallel sliding rails 8, the moving frame includes a left frame 13 and a right frame 15 distributed on two sides of the rf cable, the left frame and the right frame are respectively matched with the corresponding sliding rails, and the left frame and the right frame are relatively fixed by a connecting rod 14. The structural style of the left frame and the right frame is convenient to maintain, and the left frame and the right frame can be guaranteed to move synchronously through the connecting rod.
As shown in fig. 4 and 5, in the present embodiment, the supplementary extrusion mechanism includes an extrusion die including:
a hollow first mold core 23;
the die sleeve 24 is coaxially arranged with the first die core, the die sleeve comprises a conical inner side wall 27 and a cylindrical inner side wall 28 which are connected with each other, and the small-diameter end of the conical inner side wall is connected with the cylindrical inner side wall; the first mold core is sleeved in the mold sleeve, and an extrusion molding channel 26 is formed between the outer side wall of the first mold core and the conical inner side wall of the mold sleeve;
and the hollow second mold core 25 is coaxially arranged with the mold sleeve and is relatively fixed, and the inner side wall of the second mold core is connected with the cylindrical inner side wall of the mold sleeve.
When the defect area passes through the extrusion molding die, the liquid insulating plastic is pressurized and pressed into the defect area through the extrusion molding channel, and the supplementary extrusion molding process is completed; the size of the supplementary extrusion molding area can be limited by arranging the second mold core, and the precision requirement is ensured.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (2)
1. A manufacturing process of a radio frequency cable is characterized by comprising the following steps:
1) cooling and drying the radio frequency cable from the extrusion molding mechanism;
2) and detecting defects of the outer sheath of the dried radio frequency cable, and when the outer sheath is detected to have defects:
grinding the outer sheath periphery corresponding to the defect area by using a grinding wheel;
refilling the abraded area with insulating material by supplementary extrusion;
cooling and drying the radio frequency cable subjected to the supplementary extrusion molding again;
detecting defects of the outer sheath of the supplementary extrusion molding area;
3) winding the radio frequency cable;
the step 2) is performed by a defect repair apparatus including:
the first defect detection mechanism is used for carrying out defect detection on the outer sheath of the radio frequency cable;
a base;
the moving frame is arranged on the base in a sliding mode;
the driving mechanism is used for driving the moving frame and the radio frequency cable to move at the same speed;
the two groups of clamping mechanisms are arranged on the movable frame and are used for respectively clamping the radio frequency cables on two sides of the defect area;
the two mechanical arms are arranged on the movable frame, the end parts of the mechanical arms are provided with grinding wheels, and the mechanical arms are used for controlling the grinding wheels to grind the outer sheaths of the defect areas;
the supplementary extrusion molding mechanism is used for re-extruding the defective area of the outer sheath;
the secondary cooling mechanism is used for cooling the radio frequency cable;
the secondary drying mechanism is used for drying the outer surface of the radio frequency cable;
the second defect detection mechanism is used for carrying out defect detection on the outer sheath of the supplementary extrusion molding area;
the base is provided with a sliding rail and a rack, the moving frame is in sliding fit with the sliding rail, the driving mechanism is a driving motor, and an output shaft of the driving motor is meshed with the rack through a gear;
supplementary extrusion molding mechanism includes the extrusion molding mould, the extrusion molding mould includes:
a hollow first mold core;
the die sleeve is coaxial with the first die core and comprises a conical inner side wall and a cylindrical inner side wall which are connected with each other, and the small-diameter end of the conical inner side wall is connected with the cylindrical inner side wall; the first mold core is sleeved in the mold sleeve, and an extrusion molding channel is formed between the outer side wall of the first mold core and the conical inner side wall of the mold sleeve;
the hollow second mold core is coaxially arranged with the mold sleeve and is relatively fixed, and the inner side wall of the second mold core is connected with the cylindrical inner side wall of the mold sleeve;
every fixture all includes:
the lifting column is arranged on the moving frame;
the two clamping blocks are uniformly distributed along the periphery of the radio frequency cable, the end faces, facing the radio frequency cable, of the clamping blocks are provided with clamping grooves, the length directions of the clamping grooves are parallel to the length direction of the sliding rail, and the cross sections of the clamping grooves are semicircular;
the two cylinders are fixed at the upper ends of the corresponding lifting columns, piston rods of the cylinders are fixed relative to the corresponding clamping blocks, and the two cylinders are matched with each other and used for pushing the two clamping blocks to approach each other and clamp the radio frequency cable.
2. The manufacturing process of the radio-frequency cable according to claim 1, wherein a positioning structure is provided between the two clamping blocks of each group of clamping mechanisms, and the positioning structure comprises a positioning column arranged on one clamping block and a positioning hole arranged on the other clamping block; the positioning columns are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks, and the positioning holes are arranged on the end faces, facing the radio frequency cables, of the corresponding clamping blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588888.3A CN108832248B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279064.9A CN105896017B (en) | 2016-04-28 | 2016-04-28 | The manufacturing process of radio-frequency cable |
| CN201810588888.3A CN108832248B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610279064.9A Division CN105896017B (en) | 2016-04-28 | 2016-04-28 | The manufacturing process of radio-frequency cable |
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| CN108832248A CN108832248A (en) | 2018-11-16 |
| CN108832248B true CN108832248B (en) | 2020-08-18 |
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| CN201810589667.8A Active CN108777346B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
| CN201810588888.3A Active CN108832248B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
| CN201610279064.9A Active CN105896017B (en) | 2016-04-28 | 2016-04-28 | The manufacturing process of radio-frequency cable |
| CN201810326557.2A Active CN108539358B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
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| CN201610279064.9A Active CN105896017B (en) | 2016-04-28 | 2016-04-28 | The manufacturing process of radio-frequency cable |
| CN201810326557.2A Active CN108539358B (en) | 2016-04-28 | 2016-04-28 | Manufacturing process of radio frequency cable |
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| CN110133812B (en) * | 2017-09-20 | 2020-06-12 | 杭州富通通信技术股份有限公司 | Method for manufacturing optical cable |
| CN111796362B (en) * | 2018-08-08 | 2022-06-10 | 杭州富通通信技术股份有限公司 | Grinding equipment for prefabricated tail fiber |
| CN113146378A (en) * | 2021-06-24 | 2021-07-23 | 南通市力行机械制造有限公司 | Integrated equipment is used in production of weight lifting barbell pole |
| CN113539572B (en) * | 2021-07-29 | 2022-11-04 | 淮南文峰光电科技股份有限公司 | Cable outer skin detects prosthetic devices |
| CN113977895B (en) * | 2021-10-26 | 2023-01-10 | 东莞市杰伟机械制造有限公司 | PLA biodegradable sheet extrusion production line |
| CN115663443B (en) * | 2022-10-28 | 2023-07-18 | 珠海汉胜科技股份有限公司 | On-line repair system for metal surface defects of inner conductor of leaky coaxial cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108777346B (en) | 2020-08-18 |
| CN108832248A (en) | 2018-11-16 |
| CN108539358B (en) | 2020-07-03 |
| CN105896017B (en) | 2018-06-26 |
| CN108539358A (en) | 2018-09-14 |
| CN108777346A (en) | 2018-11-09 |
| CN105896017A (en) | 2016-08-24 |
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