CN110539264A - Rotatable test fixture of reliable location - Google Patents
Rotatable test fixture of reliable location Download PDFInfo
- Publication number
- CN110539264A CN110539264A CN201910856292.1A CN201910856292A CN110539264A CN 110539264 A CN110539264 A CN 110539264A CN 201910856292 A CN201910856292 A CN 201910856292A CN 110539264 A CN110539264 A CN 110539264A
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- CN
- China
- Prior art keywords
- ratchet wheel
- connecting shaft
- double
- test fixture
- fixed support
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- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a reliably-positioned rotatable test fixture, which relates to the technical field of communication engineering tests and comprises a fixed support, wherein a connecting shaft penetrates through the fixed support, and one end of the connecting shaft is provided with a test frame for clamping a tested piece; a first ratchet wheel, a double-end-face toothed pulley and a second ratchet wheel are coaxially arranged outside the connecting shaft in sequence, the first ratchet wheel is connected to the connecting shaft in a sliding manner along the length direction of the connecting shaft, the double-end-face toothed pulley is connected to the connecting shaft in a sliding manner only along the length direction of the connecting shaft, and two end faces of the double-end-face toothed pulley are respectively meshed with the end faces of the first ratchet wheel and the second ratchet wheel; the fixed support is provided with a first pawl used for limiting the rotation direction of the first ratchet wheel and a second pawl used for limiting the rotation direction of the second ratchet wheel, the first pawl is connected in the fixed support in a sliding mode along the direction far away from the first ratchet wheel, and the first ratchet wheel and the second ratchet wheel are arranged in a mode that the limited unidirectional rotation directions are opposite. The effects of rotating the tested piece, positioning conveniently and reliably and improving the testing efficiency are achieved.
Description
Technical Field
The invention relates to the technical field of communication engineering testing, in particular to a rotatable testing clamp capable of being reliably positioned.
Background
In the technical field of communication engineering testing, a tested piece needs to be assembled, debugged, maintained and the like in a testing state in various devices, for example, a power distribution network needs to be placed on a testing frame, under the condition that the power distribution network is not detached, the front and back cavities of the power distribution network need to be uncapped, debugged, maintained and the like, and a side interface end of the power distribution network can also be assembled, tested and maintained. Meanwhile, in the communication antenna test, the problem that the pitching angle of the antenna needs to be flexibly changed can be solved, the precision of the manual rotation method is not high, and although the precision of the motor driving method can be achieved, the whole design cost is higher.
Disclosure of Invention
The invention aims to provide a reliably-positioned rotatable test fixture, which can conveniently rotate a tested piece, is reliably positioned and improves the test efficiency.
The technical purpose of the invention is realized by the following technical scheme:
A reliably positioned rotatable test fixture comprises a fixed support, wherein a connecting shaft penetrates through the fixed support, and one end of the connecting shaft is provided with a test frame for clamping a tested piece;
The connecting shaft is coaxially provided with a first ratchet wheel, a double-end-face toothed pulley and a second ratchet wheel in sequence, the first ratchet wheel is connected to the connecting shaft in a sliding manner along the length direction of the connecting shaft, the double-end-face toothed pulley is connected to the connecting shaft in a sliding manner only along the length direction of the connecting shaft, and two end faces of the double-end-face toothed pulley are respectively meshed with end faces of the first ratchet wheel and the second ratchet wheel;
The fixed support is provided with a first pawl used for limiting the rotation direction of the first ratchet wheel and a second pawl used for limiting the rotation direction of the second ratchet wheel, the first pawl is connected in the fixed support in a sliding mode along the direction far away from the first ratchet wheel, and the first ratchet wheel and the second ratchet wheel are arranged in the opposite mode in the limited unidirectional rotation direction.
furthermore, a sliding plate which only slides along the length direction of the connecting shaft is connected in the fixed support, and the first pawl is connected to one side, close to the first ratchet wheel, of the sliding plate.
Furthermore, the connecting shaft comprises an outer spline section, and the double-end-face toothed pulley is matched with the spline section and connected with the outer spline section in a sliding mode.
Furthermore, the connecting shaft penetrates through the sliding plate.
Furthermore, a sleeve is arranged on one side, close to the double-end-face toothed pulley, of the sliding plate and sleeved outside the connecting shaft, and the first ratchet wheel is sleeved outside the sleeve.
furthermore, a plurality of sliding rods penetrating through the sliding plate are connected in the fixed support, and the sliding rods are arranged in parallel to the connecting shaft.
furthermore, the sliding plate is connected with a first torsion spring which is used for driving the first pawl to rotate and is abutted to the outside of the first ratchet wheel, and the fixed support is connected with a second torsion spring which is used for driving the second pawl to rotate and is abutted to the outside of the second ratchet wheel.
Furthermore, one end of the testing frame is provided with a rotating shaft, one end of the connecting shaft is sleeved outside the rotating shaft of the testing frame, and the connecting shaft and the rotating shaft of the testing frame are fixed through bolts.
Furthermore, one end of the connecting shaft, which is far away from the test frame, is connected with a rocker perpendicular to the connecting shaft.
furthermore, rectangular teeth are arranged on the peripheries of the two end faces of the double-end-face toothed pulley, and one end faces, close to the double-end-face toothed pulley, of the first ratchet wheel and the second ratchet wheel are meshed with the rectangular teeth.
In conclusion, the invention has the following beneficial effects:
The invention realizes the rotary motion of the device, avoids the inconvenience of continuously adjusting the orientation of the test piece in the operation process of disassembling the tested piece, greatly improves the test and maintenance efficiency, and can better adapt to the operation environment of maintenance at any time. The device is designed into a separable structure, so that the clockwise rotation and the anticlockwise rotation of a tested piece can be realized, the angle can be fixed as required, the overhaul and the maintenance of the tested piece are convenient, and the problem that a common test fixture cannot rotate freely is solved; the meshing module of the device is organized by three parts, and the rotating size range can be adjusted through gear meshing; meanwhile, the device is simple to process, wide in application range, high in efficiency, accurate in positioning, wide in application range, convenient to operate and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a double-ended toothed pulley segment according to the present invention;
FIG. 3 is a schematic view of the first ratchet portion of the present invention;
FIG. 4 is a schematic view of the second ratchet portion of the present invention.
In the figure, 1, a fixed bracket; 2. a connecting shaft; 3. a first ratchet wheel; 4. a double-end-face toothed pulley; 5. a second ratchet wheel; 6. a first pawl; 7. a second pawl; 8. a slide bar; 9. a rocker; 10. a test jig; 11. a slide plate; 12. a second torsion spring; 13. a second suspension post; 14. a first suspension post; 15. a first torsion spring.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, and the present embodiment is not to be construed as limiting the invention.
The utility model provides a rotatable test fixture of reliable location, as shown in figure 1, includes fixed bolster 1, and fixed bolster 1 is n shape, includes the both sides board of connecting on bottom plate and the bottom plate, runs through in the both sides curb plate of fixed bolster 1 and has rather than vertically connecting axle 2, and connecting axle 2 one end is connected with the test jig 10 that is used for the centre gripping to be surveyed.
As shown in fig. 1, a rotating shaft is arranged at one end of the testing jig 10, one end of the connecting shaft 2 is open and sleeved outside the rotating shaft of the testing jig 10, and the connecting shaft 2 and the rotating shaft of the testing jig 10 are fixed through a radially penetrating bolt; one end of the connecting shaft 2 far away from the test frame 10 is in threaded connection with a rocker 9 vertical to the connecting shaft.
As shown in fig. 1, a first ratchet wheel 3, a double-end-face toothed pulley 4 and a second ratchet wheel 5 are coaxially arranged on the outer edge of the connecting shaft 2 in sequence in the direction close to the test jig 10, the first ratchet wheel 3 is connected to the connecting shaft 2 in a sliding manner in the length direction of the connecting shaft 2, the double-end-face toothed pulley 4 is connected to the connecting shaft 2 in a sliding manner only in the length direction of the connecting shaft 2, and two end faces of the double-end-face toothed pulley 4 are respectively meshed with the end faces of the first ratchet wheel 3 and the second ratchet wheel.
As shown in fig. 1 and 2, the connecting shaft 2 includes an outer spline section, the double-end-face toothed pulley 4 is matched with the spline section and is connected to the outer spline section in a sliding manner, the diameters of the optical axis portions on two sides of the spline section are respectively equal to the major diameter and the minor diameter of the spline section, and the second ratchet wheel 5 is only rotatably connected outside the optical axis with the diameter equal to the major diameter of the spline section.
As shown in fig. 1, a sliding plate 11 sliding along the length direction of the connecting shaft 2 is connected in the fixing bracket 1, and the connecting shaft 2 vertically penetrates through the sliding plate 11; one side of the sliding plate 11, which is close to the double-end-face toothed pulley 4, is provided with a sleeve, the inner diameter and the outer diameter of the sleeve are respectively equal to the small diameter and the large diameter of the spline section, the sleeve is sleeved outside the connecting shaft 2, and the first ratchet wheel 3 is rotationally connected outside the sleeve.
As shown in fig. 1, in order to guide the sliding of the sliding plate 11, two sliding rods 8 penetrating through the sliding plate 11 are connected in the fixing bracket 1, the sliding rods 8 are arranged parallel to the connecting shaft 2, in this embodiment, after the sliding rods 8 penetrate through one side plate of the fixing bracket 1, the sliding rods 8 are connected in the other side plate in a threaded manner, and the length of the sliding rods 8 is equal to that of the fixing bracket 1.
As shown in fig. 1, rectangular teeth are uniformly distributed on the periphery of two end faces of the double-end-face toothed pulley 4, and one end faces of the first ratchet wheel 3 and the second ratchet wheel 5, which are close to the double-end-face toothed pulley 4, are meshed with the rectangular teeth.
as shown in fig. 1, the fixed bracket 1 is provided with a first pawl 6 for limiting the rotation direction of the first ratchet wheel 3 and a second pawl 7 for limiting the rotation direction of the second ratchet wheel 5, the first pawl 6 is connected in the fixed bracket 1 in a sliding manner along the direction away from the first ratchet wheel 3, and the first ratchet wheel 3 and the second ratchet wheel 5 are arranged in opposite directions of limited unidirectional rotation. In this embodiment, the first pawl 6 is located above the first ratchet wheel 3 and is rotatably connected to the slide plate 11, and the second pawl 7 is located directly above the second ratchet wheel 5.
As shown in fig. 1, a first suspension column 14 is integrally connected to one side of the sliding plate 11 close to the first ratchet wheel 3, and the first pawl 6 is rotatably connected to the first suspension column 14; a second suspension column 13 is integrally connected to the fixed support 1, the second suspension column 13 is located on a side plate, close to the test frame 10, of the fixed support 1, and the second pawl 7 is rotatably connected to the second suspension column 13.
As shown in fig. 3, compared with the simple gravity abutment, in order to improve the stability of the pawl, the sliding plate 11 is connected with a first torsion spring 15 which is used for driving the first pawl 6 to rotate and abuts against the outside of the first ratchet 3, the first torsion spring 15 is sleeved outside the first suspension post 14, one end of the first torsion spring is connected with the sliding plate 11, and the other end of the first torsion spring is connected with the first pawl 6.
As shown in fig. 4, the fixing bracket 1 is connected to a second torsion spring 12 for driving the second pawl 7 to rotate and abutting against the outside of the second ratchet 5, the second torsion spring 12 is sleeved outside the second suspension post 13, and one end of the second torsion spring is connected to the fixing bracket 1 while the other end is connected to the second pawl 7.
The operation step of rotating the measured piece comprises the following steps:
(1) The double-end-face toothed pulley 4 slides to be meshed with the second ratchet wheel 5 and separated from the first ratchet wheel 3, the rocker 9 is pulled to realize the one-way rotation of the test frame 10, when the test frame rotates to a required position, the sliding plate 11 is moved to enable the first ratchet wheel 3 on the sliding plate to be meshed with the double-end-face toothed pulley 4, the circumferential rotation of the spline shaft 2 is limited due to the action of the ratchet wheels, and finally the test frame 10 is reliably stopped at the corresponding position. If it is desired to continue rotation in this direction, the slide 11 is again moved to disengage the first ratchet wheel 3 from the double-ended toothed pulley 4.
(2) Similarly, if the test rack 10 needs to rotate in the other direction in one direction, the sliding of the double-end-face toothed pulley 4 can be realized only by meshing connection with the first ratchet wheel 3, and when the test rack is rotated to a required position, the sliding plate 11 is moved until the double-end-face toothed pulley 4 is meshed with the second ratchet wheel 5 at the same time, so that the test rack can be stopped at the position.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a rotatable test fixture of reliable location which characterized in that: the device comprises a fixed support (1), wherein a connecting shaft (2) penetrates through the fixed support (1), and one end of the connecting shaft (2) is provided with a test frame (10) for clamping a tested piece;
A first ratchet wheel (3), a double-end-face toothed pulley (4) and a second ratchet wheel (5) are coaxially arranged outside the connecting shaft (2) in sequence, the first ratchet wheel (3) is connected to the connecting shaft (2) in a sliding mode along the length direction of the connecting shaft (2), the double-end-face toothed pulley (4) is connected to the connecting shaft (2) in a sliding mode only along the length direction of the connecting shaft (2), and two end faces of the double-end-face toothed pulley (4) are meshed with end faces of the first ratchet wheel (3) and the second ratchet wheel (5) respectively;
the fixed support (1) is provided with a first pawl (6) used for limiting the rotation direction of the first ratchet wheel (3) and a second pawl (7) used for limiting the rotation direction of the second ratchet wheel (5), the first pawl (6) is connected to the fixed support (1) in a sliding mode along the direction away from the first ratchet wheel (3), and the first ratchet wheel (3) and the second ratchet wheel (5) are arranged in the opposite direction of the limited unidirectional rotation direction.
2. A positively positionable, rotatable test fixture according to claim 1, wherein: the fixed support (1) is connected with a sliding plate (11) which only slides along the length direction of the connecting shaft (2), and the first pawl (6) is connected to one side, close to the first ratchet wheel (3), of the sliding plate (11).
3. A positively positionable, rotatable test fixture, according to claim 2, wherein: the connecting shaft (2) comprises an outer spline section, and the double-end-face toothed pulley (4) is matched with the spline section and is connected with the outer spline section in a sliding mode.
4. A positively positionable, rotatable test fixture, according to claim 3, wherein: the connecting shaft (2) penetrates through the sliding plate (11).
5. a positively positionable, rotatable test fixture, according to claim 4, wherein: one side of the sliding plate (11) close to the double-end-face toothed pulley (4) is provided with a sleeve, the sleeve is sleeved outside the connecting shaft (2), and the first ratchet wheel (3) is sleeved outside the sleeve.
6. A positively positionable, rotatable test fixture, according to claim 2, wherein: a plurality of sliding rods (8) penetrating through the sliding plate (11) are connected in the fixed support (1), and the sliding rods (8) are arranged in parallel to the connecting shaft (2).
7. a positively positionable, rotatable test fixture, according to claim 2, wherein: the sliding plate (11) is connected with a first torsion spring (15) which is used for driving the first pawl (6) to rotate and abuts against the outside of the first ratchet wheel (3), and the fixed support (1) is connected with a second torsion spring (12) which is used for driving the second pawl (7) to rotate and abuts against the outside of the second ratchet wheel (5).
8. A positive positioning rotatable test fixture according to claim 1 or 2, wherein: the testing jig is characterized in that a rotating shaft is arranged at one end of the testing jig (10), one end of the connecting shaft (2) is sleeved outside the rotating shaft of the testing jig (10), and the connecting shaft (2) and the rotating shaft of the testing jig (10) are fixed through bolts.
9. a positive positioning rotatable test fixture according to claim 1 or 2, wherein: one end of the connecting shaft (2) far away from the test frame (10) is connected with a rocker (9) vertical to the connecting shaft.
10. A positive positioning rotatable test fixture according to claim 1 or 2, wherein: the periphery of two end faces of the double-end-face toothed pulley (4) is provided with rectangular teeth, and one end faces, close to the double-end-face toothed pulley (4), of the first ratchet wheel (3) and the second ratchet wheel (5) are meshed with the rectangular teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856292.1A CN110539264B (en) | 2019-09-11 | 2019-09-11 | Rotatable test fixture of reliable location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856292.1A CN110539264B (en) | 2019-09-11 | 2019-09-11 | Rotatable test fixture of reliable location |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110539264A true CN110539264A (en) | 2019-12-06 |
| CN110539264B CN110539264B (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910856292.1A Active CN110539264B (en) | 2019-09-11 | 2019-09-11 | Rotatable test fixture of reliable location |
Country Status (1)
| Country | Link |
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| CN (1) | CN110539264B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900489A (en) * | 2019-12-12 | 2020-03-24 | 株洲广锐电气科技有限公司 | Fixing device for manufacturing vehicle accessories |
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| CN209045746U (en) * | 2018-12-20 | 2019-06-28 | 中车长春轨道客车股份有限公司 | A kind of antenna pitching fixture |
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| CN209329131U (en) * | 2018-12-29 | 2019-08-30 | 鹤壁天海电子信息系统有限公司 | A kind of bidirectional self-locking apparatus and antenna lifter |
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| JP2004304462A (en) * | 2003-03-31 | 2004-10-28 | Clarion Co Ltd | On-vehicle antenna |
| JP2012060338A (en) * | 2010-09-08 | 2012-03-22 | Nec Access Technica Ltd | Antenna holding structure |
| JP2015093327A (en) * | 2013-11-08 | 2015-05-18 | トヨタ車体株式会社 | Rotary jig for assembly |
| CN206764288U (en) * | 2017-04-27 | 2017-12-19 | 重庆森迈汽车配件有限公司 | Assembly parts assembling rotating mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110900489A (en) * | 2019-12-12 | 2020-03-24 | 株洲广锐电气科技有限公司 | Fixing device for manufacturing vehicle accessories |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110539264B (en) | 2020-11-03 |
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Application publication date: 20191206 Assignee: Nanjing University of Engineering Science Park Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980001093 Denomination of invention: A reliable and rotatable testing fixture for positioning Granted publication date: 20201103 License type: Common License Record date: 20240122 |
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Application publication date: 20191206 Assignee: Nanjing Jinxi Yunchuang Technology Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980001805 Denomination of invention: A reliable and rotatable testing fixture for positioning Granted publication date: 20201103 License type: Common License Record date: 20240202 |
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Application publication date: 20191206 Assignee: Nanjing Institute of Engineering Technical Service Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980002478 Denomination of invention: A reliable and rotatable testing fixture for positioning Granted publication date: 20201103 License type: Common License Record date: 20240305 |
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