CN104406752A - Radio frequency coaxial cable assembly vibration test device and method - Google Patents
Radio frequency coaxial cable assembly vibration test device and method Download PDFInfo
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- CN104406752A CN104406752A CN201410673246.5A CN201410673246A CN104406752A CN 104406752 A CN104406752 A CN 104406752A CN 201410673246 A CN201410673246 A CN 201410673246A CN 104406752 A CN104406752 A CN 104406752A
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Abstract
The invention discloses a radio frequency coaxial cable assembly vibration test device and a method. The radio frequency coaxial cable assembly vibration test device includes a fixture, and the fixture is respectively fixedly connected to RF connectors at both ends of the radio frequency coaxial cable. A vibration source output device is arranged in the middle of the cable, and the vibration source output device is connected with the cable through cable clamps. The method includes: 1, fixing both ends of the radio frequency coaxial cable through the cable clamps; 2, clamping the middle position of the cable by means of the cable clamp; 3, starting the vibration source output device, the cable clamp vibrating up and down through the vibration source output device, wherein, the vibration amplitude and frequency are provided by the vibration source output device. The test device has simple structure, strong operability, and the vibration test can reflect well the assembly and stability performance of the cable and connector.
Description
Technical field
The present invention relates to a kind of radio frequency co-axial cable subassembly vibration testing device and method.
Background technology
Vibration test refers to and is used for the various Environmental Virbration Influences that simulation test product suffers from transportation, installation and use environment determining whether product can bear the ability of various ambient vibration.The important test event that vibration test is electric and electronic product design, shape, must carry out when dispatching from the factory.In process of the test, general electronics work electronic product vibration table and measured piece fixed form are: be first placed in by measured piece in the vibration stationary platform of vibration test machine; Again measured piece is carried out rigidity with shaking platform by various fixtures such as bolt, metal tape, L-type square tabulars to connect, measured piece entirety is moved together with shaking platform.The control device band moving platform of testing machine vibrates with the frequency of regulation, amplitude and other controling parameters, to investigate the resistance to vibration of the structure of tested product, reliability and integrity.
Radio frequency co-axial cable subassembly, as a kind of electronic product, in design typification process, equally also must carry out vibration test.The part but its structural shape and environment for use are very different with general electronic product again, make to adopt the vibration table of platform pattern to carry out vibration test to it and have significant limitation, the structural stability that radio frequency co-axial cable subassembly design is produced and the shock resistance in practical service environment can not be reflected completely.Main cause has following: 1, radio frequency co-axial cable subassembly structure is simple, is coaxial connector (as Fig. 1 shows) in the radio frequency coaxial-cable two ends attaching of certain length; 2, the part relating to physical construction stability in assembly is the part that is connected with cable of coaxial connector mainly.As shown in Figure 2, general production technology is divided into two kinds.One is installation type, the inner wire of cable and the axis part of coaxial connector, and the outer conductor of cable and the housing parts of coaxial connector adopt mechanical type to be connected, and uses the technique of compression or spring leaf contact.Two is welded types, uses scolding tin material the internal and external conductor of cable and the axis of coaxial connector and housing parts to be welded.
No matter which kind of technique, in the case of vibrations, cable assembly should check emphatically the Assembly stability of cable and connector under vibrational state.Therefore, the vibration resistance for assembly is tested, and we mainly investigate the resistance to shock of this part-structure.But, if according to common vibration testing method, on the vibration test machine test platform fixing by radio frequency co-axial cable subassembly two ends, the motion of equidirectional same magnitude done by cable and connector, without relative motion, now cannot reflect the switching performance between cable and connector at all.
Summary of the invention
Technical matters to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of radio frequency co-axial cable subassembly vibration testing device and the method that can reflect the switching performance between cable and connector.
The technical solution adopted in the present invention is: a kind of radio frequency co-axial cable subassembly vibration testing device, it is characterized in that, it comprises stationary fixture, described stationary fixture is fixedly connected with the radio frequency connector at radio frequency coaxial-cable two ends respectively, the centre of cable is provided with vibration source output unit, and described vibration source output unit is connected by cable cleat and cable.
By technique scheme, described vibration source output unit comprises motor, the fixing montant of the excentric shaft be connected by shaft coupling bias with motor output shaft, the Bearning mechanism configured with excentric shaft, the vertical support bar be connected with Bearning mechanism, the support bar fixture be sleeved on outside support bar, fixed support rod chucking appliance, described support bar can along the upper and lower slippage of support bar fixture, and the upper end of described support bar is connected with cable cleat.
By technique scheme, described cable cleat comprise segmental mandrel, lower segmental mandrel, for compressing the gland of upper segmental mandrel and lower segmental mandrel, multiple semicylindrical opening is provided with in described upper segmental mandrel, the multiple semicylindrical openings corresponding with upper segmental mandrel are provided with in lower segmental mandrel, tested cable is arranged in the cylindrical hole of upper and lower segmental mandrel formation, compressed by gland, described gland is connected with vertical support bar.
By technique scheme, described stationary fixture comprises pedestal, vertical support frame is respectively arranged with in the both sides of pedestal, each vertical support frame is provided with the horizontal erecting frame that can be connected with tested cable socket, described horizontal erecting frame along vertical support frame horizontal sliding, vertical support frame can be provided with the fixture for fixed lateral erecting frame.
By technique scheme, described horizontal erecting frame is T-shaped erecting frame, and one end of T-shaped erecting frame is provided with multiple threaded block, is fixedly installed square tube in the upper end of vertical support frame, and described square tube is sleeved on outside the square termination of horizontal erecting frame.
A kind of radio frequency co-axial cable subassembly vibration testing method, is characterized in that: it comprises the steps:
Step one: a kind of radio frequency co-axial cable subassembly vibration testing device as claimed in claim 1 is provided;
Step 2: by the two ends of stationary fixture fixed RF concentric cable;
Step 3: the centre position of cable cleat being clamped cable;
Step 4: Vibration on Start-up source output unit, cable cleat is by vibration source output unit up-down vibration, and the amplitude of vibration and frequency are provided by vibration source output unit.
By technique scheme, described stationary fixture comprises pedestal, vertical support frame is respectively arranged with in the both sides of pedestal, each vertical support frame is provided with the horizontal erecting frame that can be connected with tested cable socket, described horizontal erecting frame can along vertical support frame horizontal sliding, vertical support frame is provided with the fixture for fixed lateral erecting frame, described step 2 is specially: mobile horizontal erecting frame, is threaded connection with the threaded block of corresponding horizontal erecting frame respectively by the connector of tested cable assembly termination.
By technique scheme, described cable cleat comprise segmental mandrel, lower segmental mandrel, for compressing the gland of upper segmental mandrel and lower segmental mandrel, multiple semicylindrical opening is provided with in described upper segmental mandrel, the multiple semicylindrical openings corresponding with upper segmental mandrel are provided with in lower segmental mandrel, tested cable is arranged in the cylindrical hole of upper and lower segmental mandrel formation, compressed by gland, described gland is connected with vertical support bar; Described step 3 is specially: open segmental mandrel and lower segmental mandrel, be sandwiched in distinguish nib in the centre position of the cable of tested cable assembly, clamped by cable by gland, and pulls fixture and fixed by horizontal erecting frame.
Beneficial effect acquired by the present invention is: simple, the strong operability of test unit structure in the present invention, by vibration-testing, well can react the Assembly stability energy of cable and connector.
Accompanying drawing explanation
Fig. 1 is the front view of test unit in the present invention.
Fig. 2 is the structural drawing of vibration source output unit in the present invention.
Fig. 3 is the cable cleat structural drawing of test unit in the present invention.
Fig. 4 is the stereographic map of test unit in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Present embodiments provide a kind of radio frequency co-axial cable subassembly vibration testing device, it comprises stationary fixture, described stationary fixture is fixedly connected with the radio frequency connector at radio frequency coaxial-cable two ends respectively, the centre of cable is provided with vibration source output unit, and described vibration source output unit is connected by cable cleat and cable.
Described stationary fixture comprises pedestal 14, vertical support frame 8,10 is respectively arranged with in the both sides of pedestal, each vertical support frame is provided with the horizontal erecting frame 2,7 that can be connected with tested cable connector 3,6, described horizontal erecting frame along vertical support frame horizontal sliding, vertical support frame can be provided with the fixture 1,14 for fixed lateral erecting frame.Described horizontal erecting frame is T-shaped erecting frame, and one end of T-shaped erecting frame is provided with multiple threaded block, and for being threaded with tested cable connector, be fixedly installed sleeve pipe in the upper end of vertical support frame, described casing pipe sleeve is contained in outside the termination of horizontal erecting frame.Wherein, fixture is thread handle.
Described vibration source output unit comprises motor 12, the fixing montant 16 of the excentric shaft 11 be connected by shaft coupling 24 bias with motor 12 output shaft, the Bearning mechanism configured with excentric shaft, the vertical support bar 9 be connected with Bearning mechanism, the support bar fixture 15 be sleeved on outside support bar, fixed support rod chucking appliance, described support bar 9 can along support bar fixture about 15 slippage, and the upper end of described support bar 16 is connected with cable cleat 4.Bearning mechanism comprises bearing seat 23, bearing 22, bearing holder (housing, cover) 21.Control box 13 for control motor export vibration frequency and the time.
Described cable cleat 4 comprise segmental mandrel 17, lower segmental mandrel 18, for compressing the gland 19 of upper segmental mandrel and lower segmental mandrel, multiple semicylindrical opening is provided with in described upper segmental mandrel, the multiple semicylindrical openings corresponding with upper segmental mandrel are provided with in lower segmental mandrel, tested cable is arranged in the cylindrical hole of upper and lower segmental mandrel formation, compressed by gland 19, and tightened by round end key-bolt 20, described gland 19 is connected with vertical support bar 9.
The vibration testing method undertaken by above device is comprised the steps:
1), mobile T-shaped erecting frame 4, the threaded block of tested cable assembly 5 Belt connectors 3,6 and T-shaped erecting frame 4 is threaded connection, and ensures certain moment of torsion;
2), turn key-bolt 20 opens segmental mandrel 17 and lower segmental mandrel 18, is sandwiched in distinguish nib by the centre position of the cable 5 of tested cable assembly;
3), cable clamped by gland 19 by turn key-bolt 20, and pulls fixed handle and fixed by T-shaped erecting frame 4;
3), vibration frequency and the time of regulation are set on control box 13, start running button;
4) motor 12 brings into operation, and drives tested cable assembly cable centre position to vibrate with the vibration frequency of regulation by orthogonal strut 9, and adjustment vibration frequency realizes by control box; Adjustment Oscillation Amplitude realizes by the eccentric throw d changing excentric shaft, tests various different model radio frequency co-axial cable subassembly realize by replacing segmental mandrel and T-shaped support threaded block as needs;
5), can automatically stop or manually stopping after off-test.
Claims (8)
1. a radio frequency co-axial cable subassembly vibration testing device, it is characterized in that, it comprises stationary fixture, described stationary fixture is fixedly connected with the radio frequency connector at tested cable two ends respectively, the centre of cable is provided with vibration source output unit, and described vibration source output unit is connected by cable cleat and cable.
2. radio frequency co-axial cable subassembly vibration testing device according to claim 1, it is characterized in that, described vibration source output unit comprises motor, the fixing montant of the excentric shaft be connected by shaft coupling bias with motor output shaft, the Bearning mechanism configured with excentric shaft, the vertical support bar be connected with Bearning mechanism, the support bar fixture be sleeved on outside support bar, fixed support rod chucking appliance, described support bar can along the upper and lower slippage of support bar fixture, and the upper end of described support bar is connected with cable cleat.
3. radio frequency co-axial cable subassembly vibration testing device according to claim 1 and 2, it is characterized in that, described cable cleat comprise segmental mandrel, lower segmental mandrel, for compressing the gland of upper segmental mandrel and lower segmental mandrel, multiple semicylindrical opening is provided with in described upper segmental mandrel, the multiple semicylindrical openings corresponding with upper segmental mandrel are provided with in lower segmental mandrel, tested cable is arranged in the cylindrical hole of upper and lower segmental mandrel formation, and compressed by gland, described gland is connected with vertical support bar.
4. radio frequency co-axial cable subassembly vibration testing device according to claim 1 and 2, it is characterized in that, described stationary fixture comprises pedestal, vertical support frame is respectively arranged with in the both sides of pedestal, each vertical support frame is provided with the horizontal erecting frame that can be connected with tested cable socket, described horizontal erecting frame along vertical support frame horizontal sliding, vertical support frame can be provided with the fixture for fixed lateral erecting frame.
5. radio frequency co-axial cable subassembly vibration testing device according to claim 4, it is characterized in that, described horizontal erecting frame is T-shaped erecting frame, one end of T-shaped erecting frame is provided with multiple threaded block, be fixedly installed sleeve pipe in the upper end of vertical support frame, described casing pipe sleeve is contained in outside the termination of horizontal erecting frame.
6. a radio frequency co-axial cable subassembly vibration testing method, is characterized in that: it comprises the steps:
Step one: a kind of radio frequency co-axial cable subassembly vibration testing device as claimed in claim 1 is provided;
Step 2: by the two ends of stationary fixture fixed RF concentric cable;
Step 3: the centre position of cable cleat being clamped cable;
Step 4: Vibration on Start-up source output unit, cable cleat is by vibration source output unit up-down vibration, and the amplitude of vibration and frequency are provided by vibration source output unit.
7. a kind of radio frequency co-axial cable subassembly vibration testing method according to claim 6, it is characterized in that: described stationary fixture comprises pedestal, vertical support frame is respectively arranged with in the both sides of pedestal, each vertical support frame is provided with the horizontal erecting frame that can be connected with tested cable socket, described horizontal erecting frame can along vertical support frame horizontal sliding, vertical support frame is provided with the fixture for fixed lateral erecting frame, described step 2 is specially: mobile horizontal erecting frame, the connector of tested cable assembly termination is threaded connection with the threaded block of corresponding horizontal erecting frame respectively.
8. a kind of radio frequency co-axial cable subassembly vibration testing method according to claim 7, it is characterized in that: described cable cleat comprise segmental mandrel, lower segmental mandrel, for compressing the gland of upper segmental mandrel and lower segmental mandrel, multiple semicylindrical opening is provided with in described upper segmental mandrel, the multiple semicylindrical openings corresponding with upper segmental mandrel are provided with in lower segmental mandrel, tested cable is arranged in the cylindrical hole of upper and lower segmental mandrel formation, compressed by gland, described gland is connected with vertical support bar; Described step 3 is specially: open segmental mandrel and lower segmental mandrel, be sandwiched in distinguish nib in the centre position of the cable of tested cable assembly, clamped by cable by gland, and pulls fixture and fixed by horizontal erecting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410673246.5A CN104406752A (en) | 2014-11-21 | 2014-11-21 | Radio frequency coaxial cable assembly vibration test device and method |
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| CN201410673246.5A CN104406752A (en) | 2014-11-21 | 2014-11-21 | Radio frequency coaxial cable assembly vibration test device and method |
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Cited By (4)
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| CN107340113A (en) * | 2017-07-03 | 2017-11-10 | 通快电梯（苏州）有限公司 | A kind of test machine for testing step intensity |
| CN109342083A (en) * | 2018-11-08 | 2019-02-15 | 深圳市检验检疫科学研究院 | Fixing means and fixture for the test of two wheeled electric balance car security performance |
| CN113533797A (en) * | 2021-06-25 | 2021-10-22 | 西安富士达线缆有限公司 | Anchor clamps suitable for cable subassembly vibration environment simulation test |
| CN113701974A (en) * | 2021-09-13 | 2021-11-26 | 安徽中邦特种电缆科技有限公司 | Cable assembly vibration test device |
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| CN113533797A (en) * | 2021-06-25 | 2021-10-22 | 西安富士达线缆有限公司 | Anchor clamps suitable for cable subassembly vibration environment simulation test |
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Application publication date: 20150311 |
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