CN110355303B - Rebound-preventing high-precision bending forming device for semi-rigid coaxial radio frequency cable - Google Patents
Rebound-preventing high-precision bending forming device for semi-rigid coaxial radio frequency cable Download PDFInfo
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- CN110355303B CN110355303B CN201910603425.4A CN201910603425A CN110355303B CN 110355303 B CN110355303 B CN 110355303B CN 201910603425 A CN201910603425 A CN 201910603425A CN 110355303 B CN110355303 B CN 110355303B
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- 238000005452 bending Methods 0.000 title claims abstract description 151
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 54
- 238000010438 heat treatment Methods 0.000 claims description 34
- 239000004020 conductor Substances 0.000 claims description 13
- 238000013461 design Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 7
- 238000007906 compression Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012999 compression bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses an anti-rebound high-precision bending forming device for a semi-hard coaxial radio frequency cable, which comprises a base and a rotating part capable of rotating on the base, wherein the rotating part comprises a base body, a base cover and a base cover, wherein the base cover is arranged on the base cover, and the rotating part is arranged on the base cover, and comprises a base cover, a base cover and a base cover: the base and the rotating part are respectively provided with a first bending module and a second bending module which are matched with each other, the surface of the first bending module is provided with a forming groove, and the rotating part can rotate to the position that the surfaces of the first bending module and the second bending module are mutually attached. The bending molding of the semi-rigid coaxial cable can be completed at one time, and the rebound prevention design is added, so that after the semi-rigid coaxial cable is bent, the rebound caused by stress release is avoided, and the bending curvature is not influenced; the press bending modules with different groove radiuses are replaced, so that the press bending module is applicable to double-bending shaping of semi-rigid cables with other diameters; bending of specific shapes of the cable, such as single bend, double bend and other bending shapes, can be achieved by changing the press bending modules of different shapes.
Description
Technical Field
The invention relates to a semi-hard coaxial radio frequency cable processing device, in particular to a rebound-preventing high-precision bending forming device for a semi-hard coaxial radio frequency cable, which can be used for forming single bending, double bending and the like of an ultra-fine (0.86 mm) semi-hard coaxial radio frequency cable.
Background
Along with the continuous updating of the aerospace communication technology, communication equipment is more and more miniaturized, all parts of radio frequency interfaces are more and more small, various single-bent and double-bent extremely-thin and extremely-short semi-hard coaxial cables are required to be connected for multi-signal multi-channel radio frequency transmission equipment, on-board circuits and the like, and the equipment identification degree is improved, so that higher requirements are put forward on the machining size of the equipment.
Because of the diversity of installation environments, most manufacturers adopt a general device and use a manual bending mode to complete bending in batches in order to save cost; however, the error accumulation in the mode is increased, small-radius bending cannot be performed, the forming precision is poor, the batch consistency is poor, cables are easy to break, particularly extremely fine semi-hard cables, the bending resilience of the cables cannot be accurately controlled, the flatness is low, the phase consistency cannot be ensured, great waste is caused, the reliability is extremely low, and great potential safety hazards are caused for a highly reliable aerospace system.
Disclosure of Invention
The invention aims to provide an anti-rebound high-precision bending forming device for a semi-hard coaxial radio-frequency cable, which is suitable for bending forming of shapes such as single bending, double bending and the like for semi-hard coaxial radio-frequency cables with various diameters, particularly superfine diameters, so as to improve the accuracy and consistency of forming.
In order to realize the tasks, the invention adopts the following technical scheme:
The utility model provides a high accuracy bending device that kick-backs is prevented to semi-hard coaxial radio frequency cable, includes the base to and rotatable rotating part on the base, wherein:
The base and the rotating part are respectively provided with a first bending module and a second bending module which are matched with each other, the surface of the first bending module is provided with a forming groove, and the rotating part can rotate to the position that the surfaces of the first bending module and the second bending module are mutually attached.
Further, the two ends of the first bending module are respectively provided with a first positioning groove and a second positioning groove, the central lines of the first positioning groove, the forming groove and the second positioning groove are coplanar and are connected in sequence, and the widths and the depths of the first positioning groove, the forming groove and the second positioning groove are the same.
Further, the surface of the first bending module is sequentially provided with a first bending section, a plane section and a second bending section from top to bottom, and the bending directions of the first bending section and the second bending section are opposite; the surface of the second bending module is matched with the surface shape of the first bending module.
Further, the forming groove is located in the middle of the surface of the first bending module, the depth of the forming groove is identical to that of the machined semi-hard coaxial radio-frequency cable.
Further, a plurality of heating holes which are communicated with the lower part of the forming groove are distributed on the side face of the first bending module, a heating device is arranged on the heating holes, the heating device comprises a heating rod and a temperature controller for controlling the temperature of the heating rod, and the heating rod is inserted into the heating holes.
Further, the base comprises a base, a rotary boss, a first positioning boss and a second positioning boss are sequentially arranged on the upper surface of the base from the front end to the rear end, a first inner concave surface for assembling an anti-compression positioning block is arranged between the rotary boss and the first positioning boss, and a second inner concave surface for assembling the first compression bending module is arranged between the first positioning boss and the second positioning boss;
The first positioning boss is lower than the second positioning boss, and the first positioning groove and the second positioning groove are respectively positioned on the upper surfaces of the first positioning boss and the second positioning boss.
Further, a plurality of positioning graduation marks are arranged in the first inner concave surface and close to the first positioning boss, and the rear end face of the anti-pressing positioning block assembled in the first inner concave surface is aligned with one graduation mark in the plurality of positioning graduation marks;
The middle part of the upper surface of the anti-pressing positioning block is provided with an anti-pressing groove, the rear end of the anti-pressing groove penetrates out of the rear end surface of the anti-pressing positioning block, and the width of the anti-pressing groove is larger than the diameter of an inner conductor of the processed semi-hard coaxial radio-frequency cable but smaller than the diameter of an outer conductor; the midline of the anti-pressing groove is coplanar with the midline of the forming groove.
Further, the rotating part comprises a pressing plate, and one side of the pressing plate is provided with a mounting table; the rotary bosses are arranged in a pair, the mounting table is positioned between the pair of rotary bosses, and movable connection between the rotary bosses and the mounting table is realized through the connecting shaft;
the other side of the pressing plate is provided with a pressing table, and the second bending module is assembled between the pressing table and the mounting table.
Further, the connecting axle include interior pivot and the outside outer pivot of suit including the pivot outside, the length of outer pivot is less than the internal rotation axle, a pair of rotatory boss on seted up first through-hole, second through-hole respectively, the mount pad on seted up the third through-hole, wherein:
The two ends of the inner rotating shaft are respectively positioned in the first through hole and the second through hole, the outer rotating shaft is positioned in the third through hole, a clamping groove is arranged in the third through hole, and a clamping block matched with the clamping groove is arranged on the outer rotating shaft; the two ends of the inner rotating shaft are provided with split groove threaded holes along the axial direction, and the two ends of the inner rotating shaft are fastened with the first through hole and the second through hole by screwing locking screws into the split groove threaded holes.
The invention has the following technical characteristics:
1. The press-fit curved surface and the groove body of the base and the rotating part are of hyperboloid structural design, one-time bending forming can be realized, and error accumulation caused by two-time bending respectively is reduced.
2. The base station can rotate 180 degrees around the axial through hole of the base, has a large adjusting space, can prevent cables from being damaged, can realize 100% complete pressing, and ensures the bending radius of semi-rigid cables.
3. The left and right positions of the anti-pressing positioning block are adjusted through positioning scale marks which are drawn on a T-shaped plane, and the position of each positioning scale mark represents the length of a model product, so that the measurement error caused by different batches of production is greatly reduced.
4. The groove on the first bending module is a semicircular groove body and is completely attached to the circular semi-hard cable, so that the semi-hard cable is prevented from being damaged by pressing; the heating device under the first bending module can heat the bending part after bending, eliminate metal stress, prevent rebound after shaping, ensure that the curvature of the cable is not deformed, and control the length precision of the cable within 0.03 mm.
5. The connecting shaft adopts a double-layer separated design, so that dislocation movement of the base and the rotating part after long-term work can be prevented; meanwhile, the structure can slide relatively in the radial direction, and the rotating friction force is small, so that the bending operation is time-saving and labor-saving;
6. the device is suitable for the ultra-fine semi-hard cable with the diameter of 0.86mm, can complete the bending molding of the ultra-fine semi-hard coaxial cable at one time, and is added with a special rebound prevention design, so that after the semi-hard cable is bent, rebound caused by stress release is avoided, and the bending curvature is not influenced. The length precision after bending can be controlled within 0.03mm, the horizontal flatness is less than 3 degrees, the phase consistency of the processed cable batch is controlled within 5 degrees when the phase consistency is 23GHz, and the qualification rate is up to more than 90 percent; the bending module with different groove radiuses is replaced, so that the bending module is applicable to double-bending shaping of semi-rigid cables with other diameters; bending of specific shapes of the cable, such as single bend, double bend and other bending shapes, can be achieved by changing the press bending modules of different shapes.
Drawings
FIG. 1 is a schematic view of the overall structure of the device of the present invention;
FIG. 2 is a schematic diagram of a press bending operation;
FIG. 3 is a schematic view of a semi-rigid coaxial cable bent using the present apparatus;
FIG. 4 is a schematic elevational view;
FIG. 5 is a schematic top view of the base;
FIG. 6 is a left side schematic view of the base;
The left and right diagrams of fig. 7 are respectively a top view and a left side structural schematic diagram of the pressure-proof positioning block;
FIG. 8 is a schematic diagram of the front structure of the first press bending module;
FIG. 9 is a schematic top view of a first press bending module;
FIG. 10 is a left side schematic view of the first press bending module;
FIG. 11 is a schematic view of the structure of the heating device;
FIG. 12 is a schematic diagram of the front structure of the rotating part;
FIG. 13 is a schematic top view of the rotary part;
FIG. 14 is a schematic diagram of the front structure of a second press bending module;
FIG. 15 is a schematic view of the overall structure of the connecting shaft;
the left and right diagrams of fig. 16 are respectively a front structural schematic view and a side structural schematic view of the outer rotating shaft;
The left and right diagrams of fig. 17 are schematic diagrams of the front and side structures of the inner rotary shaft, respectively.
The reference numerals in the figures illustrate:
100 base, 110 base, 111 first through hole, 112 second through hole, 113 positioning scale mark, 114 first positioning slot, 115 first fixed hole, 116 second positioning slot, 117 second fixed hole, 118 guiding slot, 120 first fastening screw, 121 rotating boss, 122 first concave surface, 123 first positioning boss, 124 second concave surface, 125 second positioning boss, 130 first bending module, 131 forming groove, 132 first positioning hole, 133 heating hole, 140 anti-pressing positioning block, 141 anti-pressing slot, 142 guiding rail, 143 rear end surface, 150 heating device, 151 temperature controller, 152 heating rod, 160 second fastening screw;
200 rotating part, 210 pressing plate, 211 third through hole, 212 third fixing hole, 213 clamping groove, 220 third fastening screw, 230 second bending module, 231 third positioning hole and 232 pressing table.
300 Connecting shafts, 310 outer rotating shafts, 311 clamping blocks, 320 inner rotating shafts, 321 split groove threaded holes and 330 locking screws;
400 semi-rigid coaxial radio frequency cable, 410 inner conductor, 420 outer conductor.
Detailed Description
As shown in fig. 1 to 17, the present invention discloses a rebound prevention high precision bending forming device for a semi-rigid coaxial radio frequency cable, comprising a base 100, and a rotating part 200 rotatable on the base 100, wherein:
The base 100 and the rotating part 200 are respectively provided with a first bending module 130 and a second bending module 230 which are matched with each other, the surface of the first bending module 130 is provided with a forming groove 131, and the rotating part 200 can rotate until the surfaces of the first bending module 130 and the second bending module 230 are mutually attached.
In this scheme, the rotating part 200 can rotate 180 ° on the base 100, and the rotation can make the first bending module 130 and the second bending module 230100% fit; the forming groove 131 is a groove to be processed according to the requirement, for example, when the cable is subjected to single-bending processing, the forming groove 131 is a single-bending groove; in the drawings of the present embodiment, the forming grooves 131 are double-bending grooves, that is, the forming grooves 131 have two bending portions, so that two bending portions are formed on the cable after the processing, as shown in fig. 3. The curvature required for the machining, as well as the shape of the bending, can be achieved by different designs of the forming groove 131. I.e. what shape of the cable is to be processed, the shaped recess 131 is designed to be of a corresponding shape.
Correspondingly, the shape of the first bending module 130 should be adapted to the forming groove 131, that is, as shown in fig. 1, when the first bending module 130 is cut in the longitudinal cross-section view of the first bending module 130, the shape and trend of the cutting line formed on the upper surface of the first bending module 130 are consistent with those of the forming groove 131, so that the surfaces of the first bending module 130 and the second bending module 230 are mutually adhered. The surface shape of the second bending module 230 is adapted to the first bending module 130, for example, the surface shape of the second bending module 230 may be the same as the surface shape of the first bending module 130, but the two are arranged in opposite directions, so that the two can be attached to each other by rotating, as shown in fig. 1.
When the device is used, the semi-hard coaxial radio frequency cable 400 to be processed is placed above the forming groove 131, and then the rotating part 200 is pressed down, so that the cable is pressed into the forming groove 131, and the bending forming can be realized.
As a further optimization of the above technical solution:
The two ends of the first bending module 130 are respectively provided with a first positioning groove 114 and a second positioning groove 116, the central lines of the first positioning groove 114, the forming groove 131 and the second positioning groove 116 are coplanar and connected in sequence, and the widths and the depths of the first positioning groove 114, the forming groove 131 and the second positioning groove 116 are the same. The cable has the advantages that the cable plays a role in positioning the central line, and the levelness is prevented from being deviated when the cable is bent; meanwhile, when the cable is bent by pressing down, the flatness of the cable is prevented from shifting, and the bending flatness of the whole cable is ensured to be less than or equal to 3 degrees;
The forming groove 131 is located in the middle of the surface of the first bending module 130, and the depth of the forming groove 131 is identical to the diameter of the machined semi-hard coaxial radio-frequency cable 400.
The first positioning groove 114 and the second positioning groove 116 are used for placing two ends of a cable to be processed respectively, so that the cable can be clamped at the upper part of the forming groove 131 between the cables to be processed, as shown in fig. 2. The first positioning groove 114, the forming groove 131 and the second positioning groove 116 are sequentially continuous groove bodies, the depth and the diameter are consistent, and the depth of the first positioning groove is equal to the diameter of the cable, so that the cable is completely attached to the groove bodies during bending processing, and the cable is prevented from being damaged during pressing. In the cable bending forming process, the first positioning groove 114 and the second positioning groove 116 also play an auxiliary forming role; as shown in fig. 2, the first positioning groove 114 and the second positioning groove 116 are parallel to each other, and after the cable is bent and formed, the portions of the cable located in the first positioning groove 114 and the second positioning groove 116 are flat, as shown in fig. 3, so that the bent cable can better meet the actual use requirement.
Preferably, as shown in fig. 8 to 10, the surface of the first bending module 130 is sequentially provided with a first bending section, a plane section and a second bending section from top to bottom, and the bending directions of the first bending section and the second bending section are opposite; the surface of the second press bending module 230 is adapted to the surface shape of the first press bending module 130. The first bending module 130 shown in this embodiment is a module for performing double bending molding processing on the cable, and the surface shape of the first bending module corresponds to the molding groove 131.
In order to solve the problem that the shape of the cable rebounds after the bending and forming caused by metal elastic memory, in the scheme:
The side surface of the first bending module 130 is distributed with a plurality of heating holes 133 which are led to the lower part of the forming groove 131, the heating holes 133 are provided with heating devices 150, the heating devices 150 comprise heating rods 152 and temperature controllers 151 for controlling the temperature of the heating rods 152, and the heating rods 152 are inserted into the heating holes 133. Specifically, the heating holes 133 are distributed below the forming grooves 131 on the first bending section and the second bending section.
After the cable is bent by being pressed down, the heating device 150 is powered on, the heating rod 152 can heat the bent part of the cable, so that the bending stress of the metal outer conductor 420 of the cable is released, and the bending part is prevented from being restored due to the elastic memory of the metal after the device is opened. Before use, the heating temperature of the heating rod 152 is regulated by the temperature controller 151, so that damage to cables caused by overheating is prevented.
As shown in fig. 4 to 6, the base 100 includes a base 110, a rotating boss 121, a first positioning boss 123 and a second positioning boss 125 are sequentially disposed on an upper surface of the base 110 from a front end to a rear end, a first inner groove surface 122 for assembling the anti-pressing positioning block 140 is disposed between the rotating boss 121 and the first positioning boss 123, and a second inner concave surface 124 for assembling the first press bending module 130 is disposed between the first positioning boss 123 and the second positioning boss 125;
the first positioning boss 123 is lower than the second positioning boss 125, the first positioning groove and the second positioning groove are respectively located on the upper surfaces of the first positioning boss 123 and the second positioning boss 125, and the upper surfaces of the first positioning boss 123 and the second positioning boss 125 are respectively in smooth transition with the lower end and the upper end of the first bending module 130, namely, the contact part has no height difference.
Preferably, a plurality of positioning graduation marks 113 are provided in the first inner groove surface 122 near the first positioning boss 123, and the rear end surface 143 of the anti-pressing positioning block 140 assembled in the first inner groove surface 122 is aligned with one of the plurality of positioning graduation marks 113; in this embodiment, the positioning graduation mark 113 is composed of 5 parallel graduation marks, and the distance between each graduation mark and the rear end face 143 of the base 110 is fixed to mark a fixed length of a type of cable; when a certain type of cable is processed, the anti-compression positioning block 140 with proper specification is selected, so that the anti-compression positioning block 140 is aligned with the scale mark corresponding to the fixed length of the type of cable after being installed, and the positioning function is realized.
The middle part of the upper surface of the anti-pressing positioning block 140 is provided with an anti-pressing groove 141, the rear end of the anti-pressing groove 141 penetrates out of the rear end face 143 of the anti-pressing positioning block 140, and the width of the anti-pressing groove 141 is larger than the diameter of the inner conductor 410 of the processed semi-hard coaxial radio frequency cable 400 but smaller than the diameter of the outer conductor 420; the midline of the anti-compression groove 141 is coplanar with the midline of the molding groove 131. As shown in fig. 2 and 7, before the cable is processed, a section of the outer conductor 420 at the front end of the cable is stripped to expose the inner conductor 410, and then the inner conductor 410 exposed at the front end of the cable is inserted into the anti-press groove 141 to prevent the cable from being damaged or scratched in the bending operation, and meanwhile, the end of the outer conductor 420 is propped against the rear end face 143 of the anti-press positioning block 140, so that the axial position of the cable is effectively positioned; the cable is clamped in the first positioning groove and the second positioning groove by lightly pressing down, and then the pressing down operation can be started.
As shown in fig. 12 and 13, the rotating part 200 includes a pressing plate 210, one side of the pressing plate 210 is provided with a mounting table, and the surface of the mounting table is a plane; the rotating bosses 121 are provided with a pair, the mounting table is positioned between the pair of rotating bosses, and movable connection between the rotating bosses and the mounting table is realized through the connecting shaft 300;
The other side of the pressing plate 210 is provided with a pressing table 232, and the second bending module 230 is assembled between the pressing table 232 and the mounting table; after the rotating part 200 is completely pressed down, the mounting table is in contact fit with the upper surface of the first positioning boss 123, the pressing table 232 is in contact fit with the upper surface of the second positioning boss 125, and the surfaces of the first bending module 130 and the second bending module 230 are in contact fit, so that the surfaces of the base 100 and the rotating part 200 are completely fit, and the processing precision is effectively improved.
The specific installation mode between the rotating part 200 and the base 100 is as follows:
The connecting shaft 300 includes an inner rotating shaft 320 and an outer rotating shaft 310 sleeved outside the inner rotating shaft 320, the length of the outer rotating shaft 310 is smaller than that of the inner rotating shaft 320, the pair of rotating bosses 121 are respectively provided with a first through hole 111 and a second through hole 112, and the mounting platform is provided with a third through hole 211, wherein:
The two ends of the inner rotating shaft 320 are respectively located in the first through hole 111 and the second through hole 112, the outer rotating shaft 310 is located in the third through hole 211, a clamping groove 213 is arranged in the third through hole 211, and a clamping block 311 matched with the clamping groove 213 is arranged on the outer rotating shaft 310; the rotation part 200 and the outer rotating shaft 310 synchronously rotate through the matching of the clamping groove 213 and the clamping block 311; the two ends of the inner shaft 320 are provided with split groove threaded holes 321 along the axial direction, and the locking screws 330 are screwed into the split groove threaded holes 321 to fasten the two ends of the inner shaft 320 with the first through hole 111 and the second through hole 112. The split groove threaded hole 321 is to process a split groove on the side wall of the threaded hole along the axial direction, so that the split groove threaded hole 321 can expand towards the periphery to play a locking role when the locking screw 330 is screwed in; through the structure, the inner rotating shaft 320 is tightly fixed with the base 100, so that the inner rotating shaft 320 is prevented from radial sliding with the base when being pressed down and bent, and the device is prevented from being pressed down and not attached; the inner rotating shaft 320 and the outer rotating shaft 310 are not fixed in the radial direction, and can rotate freely and relatively, so that the rotating friction force is small, and the bending operation is time-saving and labor-saving.
In this embodiment, for example, in this embodiment, the second concave surface 124 is provided with the first fixing hole 115, and correspondingly, the first bending module 130 is provided with the first positioning hole 132, and the first bending module 130 is fixed in the second concave surface 124 by the first fastening screw 120, so as to prevent the first bending module 130 from moving during the bending operation and affecting the processing precision; similarly, a third fixing hole 212 is formed in the platen 210 between the platen 232 and the mounting table, a third positioning hole 231 is formed in the second press bending module 230, and the second press bending module 230 is fixedly mounted by the third fastening screw 220.
As shown in fig. 5 to 7, for the anti-pressing positioning block 140, a guide groove 118 for guiding the insertion of the anti-pressing positioning block 140 is machined on the side surface of one rotation boss 121, a guide rail 142 matched with the guide groove 118 is machined on the side surface of the anti-pressing positioning block 140, and the guide rail 142 and the guide groove 118 are both in trapezoid structures, so that the anti-pressing positioning block 140 can only move along the direction of the guide groove 118, and meanwhile, the anti-pressing positioning block 140 is prevented from moving in the pressing process. In addition, a second fixing hole 117 is formed in the other rotating boss 121, and a second fastening screw 160 passes through the second fixing hole 117 to fix the position-adjusted anti-compression positioning block 140.
Claims (5)
1. The utility model provides a high accuracy bending device that kick-backs is prevented to semi-hard coaxial radio frequency cable which characterized in that includes base (100) and rotatable rotating part (200) on base (100), wherein:
The base (100) and the rotating part (200) are respectively provided with a first bending module (130) and a second bending module (230) which are matched with each other, the surface of the first bending module (130) is provided with a forming groove (131), and the rotating part (200) can rotate until the surfaces of the first bending module (130) and the second bending module (230) are mutually attached;
a plurality of heating holes (133) which are communicated with the lower part of the forming groove (131) are distributed on the side face of the first bending module (130), a heating device (150) is arranged on the heating holes (133), the heating device (150) comprises a heating rod (152) and a temperature controller (151) for controlling the temperature of the heating rod (152), and the heating rod (152) is inserted into the heating holes (133);
The base (100) comprises a base (110), a rotary boss (121), a first positioning boss (123) and a second positioning boss (125) are sequentially arranged on the upper surface of the base (110) from the front end to the rear end, a first inner groove surface (122) for assembling an anti-pressing positioning block (140) is arranged between the rotary boss (121) and the first positioning boss (123), and a second inner concave surface (124) for assembling the first bending module (130) is arranged between the first positioning boss (123) and the second positioning boss (125);
The first positioning boss (123) is lower than the second positioning boss (125), and the first positioning groove (114) and the second positioning groove (116) are respectively positioned on the upper surfaces of the first positioning boss (123) and the second positioning boss (125);
The rotating part (200) comprises a pressing plate (210), and one side of the pressing plate (210) is provided with a mounting table; the rotary bosses (121) are arranged in a pair, the mounting table is positioned between the two rotary bosses (121), and movable connection between the rotary bosses (121) and the mounting table is realized through the connecting shaft (300);
a pressing table (232) is arranged on the other side of the pressing plate (210), and the second bending module (230) is assembled between the pressing table (232) and the mounting table;
The connecting shaft (300) include interior pivot (320) and suit including the outside outer pivot (310) of pivot (320), the length of outer pivot (310) is less than interior pivot (320), two rotatory boss (121) on seted up first through-hole (111), second through-hole (112) respectively, the mount pad on seted up third through-hole (211), wherein:
Two ends of the inner rotating shaft (320) are respectively positioned in the first through hole (111) and the second through hole (112), the outer rotating shaft (310) is positioned in the third through hole (211), a clamping groove (213) is formed in the third through hole (211), and a clamping block (311) matched with the clamping groove (213) is arranged on the outer rotating shaft (310); the two ends of the inner rotating shaft (320) are provided with split groove threaded holes (321) along the axial direction, and the locking screws (330) are screwed into the split groove threaded holes (321) to fasten the two ends of the inner rotating shaft (320) with the first through holes (111) and the second through holes (112).
2. The device for forming the rebound-preventing high-precision bend of the semi-rigid coaxial radio-frequency cable according to claim 1, wherein the two ends of the first bending module (130) are respectively provided with a first positioning groove (114) and a second positioning groove (116), the central lines of the first positioning groove (114), the forming groove (131) and the second positioning groove (116) are coplanar and are sequentially connected, and the widths and the depths of the three are the same.
3. The rebound-preventing high-precision bending device for the semi-rigid coaxial radio-frequency cable according to claim 1, wherein the surface of the first bending module (130) is sequentially provided with a first bending section, a plane section and a second bending section from top to bottom, and the bending directions of the first bending section and the second bending section are opposite; the surface of the second press bending module (230) is adapted to the surface shape of the first press bending module (130).
4. The device for forming the semi-rigid coaxial radio-frequency cable into the rebound prevention high-precision bending according to claim 1, wherein the forming groove (131) is positioned in the middle of the surface of the first bending module (130), the depth of the forming groove (131) is identical, and the depth is identical to the diameter of the processed semi-rigid coaxial radio-frequency cable (400).
5. The rebound-preventing high-precision bending forming device for the semi-rigid coaxial radio-frequency cable according to claim 1, wherein a plurality of positioning graduation marks (113) are arranged in the first inner groove surface (122) at positions close to the first positioning boss (123), and the rear end surface (143) of the compression-preventing positioning block (140) assembled in the first inner groove surface (122) is aligned with one graduation mark of the plurality of positioning graduation marks (113);
The middle part of the upper surface of the anti-pressing positioning block (140) is provided with an anti-pressing groove (141), the rear end of the anti-pressing groove (141) penetrates out of the rear end face (143) of the anti-pressing positioning block (140), and the width of the anti-pressing groove (141) is larger than the diameter of an inner conductor (410) of the processed semi-hard coaxial radio-frequency cable (400) but smaller than the diameter of an outer conductor (420); the midline of the anti-pressing groove (141) is coplanar with the midline of the forming groove (131).
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| CN112864774B (en) * | 2020-12-31 | 2022-02-11 | 南京航空航天大学 | Intelligent forming equipment for semi-rigid radio frequency coaxial cable and working method |
| CN115255194B (en) * | 2022-06-27 | 2024-10-18 | 国网山东省电力公司邹城市供电公司 | Stay wire maker |
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