CN204177373U - A kind of digital vernier clearance ruler - Google Patents
A kind of digital vernier clearance ruler Download PDFInfo
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- CN204177373U CN204177373U CN201420673269.1U CN201420673269U CN204177373U CN 204177373 U CN204177373 U CN 204177373U CN 201420673269 U CN201420673269 U CN 201420673269U CN 204177373 U CN204177373 U CN 204177373U
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- vernier
- distance rod
- clearance ruler
- pin
- digital
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Abstract
The utility model relates to a kind of digital vernier clearance ruler, it is characterized in that: described digital vernier clearance ruler comprises vernier scale assembly, pressure measuring assemblies, coupling arrangement; Vernier scale assembly and pressure measuring assemblies link together by coupling arrangement; Described vernier scale assembly comprises vernier, main scale, trip bolt; Described pressure measuring assemblies comprises pressure transducer, distance rod, linear bearing, fastening bolt; Described coupling arrangement comprises oblique connecting link, pin, master link, coupling bolt.The utility model has following beneficial effect: structure is simply easy to process, the accurate measurement that achieves minim gap value, and improves measuring accuracy, highly versatile, and assembling easily.
Description
Technical field
The utility model relates to a kind of digital vernier clearance ruler that can be used for gap width and accurately measure.
Background technology
In mechanical system, for ensureing that part assembles the proper motion with kinematic pair smoothly, it is inevitable for there is suitable gap between each part.But due to the impact of the factors such as wearing and tearing in the mismachining tolerance that exists in manufacture process and part under arms process, thermal effect and local deformation, gap length will depart from rational range of control gradually.Irrational gap, not only have an impact in mechanical system physical dimension, and the contact-impact power that causes of gap also can the dynamic response of influential system widely, makes it depart from perfect condition, and then cause the problems such as the abnormal vibration of mechanical system, sealing are not good, service life reduction.Therefore the measurement studying gap width has practical significance.People have invented the size that the structure of a series of exquisiteness and mode carry out measurement clearance value.Such as, utilize the combination of gap clearance gauge can accurate measurement clearance value; Utilize triangle clearance gauge can the size of measurement clearance value easily; Even there is now the clearance meter of some electronic types, comprise capacitance gap instrument and laser clearance meter etc.Disclose a kind of clearance measurement tool in Chinese patent CN202582447U, before it adopts the rectangular parallelepiped or right cylinder increased gradually, latter linked mode forms stair-stepping clearance measurement tool, can be advantageously used in automobile production.
At present, more for clearance measurement mode, but main gap measuring apparatus and mode have following deficiency: gap clearance gauge combination operation is complicated, can bring error in the process of combination; Triangle clearance gauge, in the process filled in, can introduce the power perpendicular to gap direction, and the gap width measurement formed for soft material can introduce error; Clearance measurement tool disclosed in CN202582447U is all stepped due to both sides, is difficult to alignment gap, thus can not insert in gap easily, and measuring error is comparatively large, can not accurately measure.
Utility model content
The utility model discloses a kind of digital vernier clearance ruler, this clearance ruler overcomes the deficiencies in the prior art, achieves the accurate measurement of mechanical system intermediate gap size.
The technical solution adopted in the utility model is: a kind of digital vernier clearance ruler, comprises vernier scale assembly, pressure measuring assemblies, coupling arrangement; Vernier scale assembly and pressure measuring assemblies link together by coupling arrangement; Described vernier scale assembly comprises vernier (2), main scale (1), trip bolt (3); Described pressure measuring assemblies comprises pressure transducer (6), distance rod (8), linear bearing (5), fastening bolt (7); Described coupling arrangement comprises oblique connecting link (4), pin (9), master link (10), coupling bolt (11).This clearance ruler range is 50mm, and precision is 0.002mm.
Be preferably: described main scale (1) right-hand member is connected by coupling bolt (11) with master link (10) lower end; Described vernier (2) is enclosed within main scale (1); Described trip bolt (3) is for realizing vernier (2) fixing in main scale (1) optional position; Described distance rod (8) left end is connected with pressure transducer (6), and right-hand member is connected by pin with oblique connecting link (4); Described linear bearing (5) is connected with master link (10) by fastening bolt (7), and is enclosed within the requirement for the tangential movement and measuring accuracy that ensure distance rod (8) on distance rod (8); Described oblique connecting link (4) is connected by pin (9) with master link (10), tiltedly connects the upper and lower two ends of (4) bar and has two gathering sills in order to connect vernier scale assembly and pressure measuring assemblies.
Be preferably: described vernier (2) can in the upper tangential movement of main scale (1), being provided with spring leaf between the two abuts against on main scale (1) to make vernier (2), and its rear end is provided with pin to realize the motion of vernier (2) in the gathering sill of oblique chain extension bar (4) lower end; Described distance rod (8) moves in the gathering sill of oblique connecting link (4) upper end by right-hand member pin; Described oblique connecting link (4) can rotate around pin (9); Described coupling arrangement structure is proportional makes the measured value of vernier scale assembly be five times of distance rod (8) displacement.
Be preferably: described vernier scale modular construction is divided into mechanical part, Sensor section; Capacitive displacement transducer is provided with in order to realize the measurement of displacement in vernier (2).
Be preferably: surveyed parameter is transferred to data acquisition equipment by data line by described pressure transducer (6) and vernier (2), and by computer by image data process, to realize digitized measurement.
Be preferably: described master link (10) measure time and tested mechanism surface keeping parallelism; Tested mechanism outside surface is close to by pressure transducer (6).
The present invention has following beneficial effect and progress significantly:
1) adopt conditional electronic vernier caliper as measurement main scale, structure is simply easy to process.
2) described digital vernier clearance ruler is by coupling arrangement by displacement equations small for distance rod (8), achieves the accurate measurement of minim gap value, and improves measuring accuracy.
3) described digital vernier clearance ruler can to the clearance measurement of the different size of diverse location, simple to operation.
4) described digital vernier clearance ruler is compared with slope or leg-of-mutton clearance ruler, and measuring process will make gap length change because of human factor.
5) described digital vernier clearance ruler does not need to carry out stack combinations compared with the clearance gauge of gap.
6) compact conformation, highly versatile, and process and assemble is easy, simple to operate.
Accompanying drawing explanation
Accompanying drawing illustrates embodiment of the present utility model, it should be noted that, accompanying drawing only for illustrating principle of the present utility model, do not limit its scope, and accompanying drawing is not necessarily drawn in proportion.
Fig. 1 is the overall diagram of the utility model digital vernier clearance ruler;
Fig. 2 is the vernier scale assembly normal axomometric drawing of the utility model digital vernier clearance ruler;
Fig. 3 is the pressure measuring assemblies normal axomometric drawing of the utility model digital vernier clearance ruler.
1, main scale; 2, vernier; 3, trip bolt; 4, oblique connecting link; 5, linear bearing; 6, pressure transducer; 7, fastening bolt; 8, distance rod; 9, pin; 10, master link; 11, coupling bolt.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and principle of work are described in further details.
It should be noted that, the embodiment in the utility model is only in order to know-why is described, and unrestricted scope of the present utility model.When not departing from the utility model spirit and scope, by reading the utility model, those skilled in the art will recognize that various modification of the present utility model and change, these modification and change are also within the protection domain of the application.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of digital vernier clearance ruler, is comprised vernier scale assembly, measurement components, coupling arrangement etc., is realized the measurement of mechanism's internal clearance size by vernier clearance ruler.
Wherein vernier scale assembly is divided into mechanical mechanism and sensor two parts, and mechanical mechanism part is made up of vernier 2, main scale 1, trip bolt 3; Vernier 2 is enclosed within main scale 1, and vernier 2 upper end trip bolt 3 is for realizing vernier 2 fixing in main scale 1 optional position; Be provided with spring leaf between main scale 1 and vernier 2, make vernier 2 be close to main scale 1; Be provided with in vernier 2 to hold and delete sensor to realize the measurement of displacement; Vernier 2 can tangential movement thus realize the measurement of gap width on main scale 1.
Pressure measuring assemblies is made up of linear bearing 5, pressure transducer 6, fastening bolt 7, distance rod 8; Linear bearing 5 is enclosed within distance rod 8 to ensure tangential movement and the clearance ruler measuring accuracy of distance rod 8.Pressure transducer 6 is arranged on distance rod 8 left end, to realize pressure survey.
Coupling arrangement is made up of oblique connecting link 4, pin 9, master link 10, coupling bolt 11; Main scale 1 is fixed by coupling bolt 11 by master link 10, and vernier scale assembly is connected with pressure measuring assemblies by upper and lower two ends gathering sill by oblique connecting link 4; By oblique connecting link 4 around the rotation of pin 9 to realize the tangential movement of distance rod 8 and vernier 2; By the position proportional between oblique connecting link 4 and master link 10 is effective must by distance rod displacement equations, to realize the accurate measurement of gap length.
Concrete operation step is:
Step one, by vernier 2 upper end trip bolt 3, vernier 2 is fixed on main scale 1, and vernier 2 zero graduation line is alignd with main scale 1 zero graduation line.
Step 2, gap width measuring process: according to described in step one by the zeroing of described vernier clearance ruler and by distance rod 8 left end adjacent tested mechanism outside surface, unclamp trip bolt 3, driving vernier 2 and distance rod 8 to move by slowly rotating oblique connecting link 4, by the capacitor grid transducer in distance rod 8 forefront pressure sensor 6 and vernier 2, the pressure experienced being passed to data acquisition equipment.
The Acquire and process step of step 3, data comprises: the appearance gathering pressure transducer 6 and vernier 2 by data acquisition equipment deletes the measurement numerical value of sensor.Distance rod 8 displacement is calculated by computer, and using the ratio of force value and shift value as equivalent stiffness; Gap-closing state and corresponding gap length is obtained according to equivalent stiffness change.
Above digital vernier clearance ruler provided by the utility model is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a digital vernier clearance ruler, comprises vernier scale assembly, pressure measuring assemblies, coupling arrangement; It is characterized in that: described vernier scale assembly comprises vernier (2), main scale (1), trip bolt (3); Described pressure measuring assemblies comprises pressure transducer (6), distance rod (8), linear bearing (5), fastening bolt (7); Described coupling arrangement comprises oblique connecting link (4), pin (9), master link (10), coupling bolt (11).
2. digital vernier clearance ruler according to claim 1, is characterized in that: described main scale (1) right-hand member is connected by coupling bolt (11) with master link (10) lower end; Described vernier (2) is enclosed within main scale (1); Described trip bolt (3) is for realizing vernier (2) fixing in main scale (1) optional position; Described distance rod (8) left end is connected with pressure transducer (6), and right-hand member is connected by pin with oblique connecting link (4); Described linear bearing (5) is connected with master link (10) by fastening bolt (7), and is enclosed within the requirement for the tangential movement and measuring accuracy that ensure distance rod (8) on distance rod (8); Described oblique connecting link (4) is connected by pin (9) with master link (10), tiltedly connects the upper and lower two ends of (4) bar and has two gathering sills in order to connect vernier scale assembly and pressure measuring assemblies.
3. digital vernier clearance ruler according to claim 1, it is characterized in that: described vernier (2) can in the upper tangential movement of main scale (1), being provided with spring leaf between the two abuts against on main scale (1) to make vernier (2), and its rear end is provided with pin to realize the motion of vernier (2) in the gathering sill of oblique chain extension bar (4) lower end; Described distance rod (8) moves in the gathering sill of oblique connecting link (4) upper end by right-hand member pin; Described oblique connecting link (4) can rotate around pin (9); Described coupling arrangement structure is proportional makes the measured value of vernier scale assembly be five times of distance rod (8) displacement.
4. digital vernier clearance ruler according to claim 1, is characterized in that: described vernier scale modular construction is divided into mechanical part, Sensor section; Capacitive displacement transducer is provided with in order to realize the measurement of displacement in vernier (2).
5. digital vernier clearance ruler according to claim 1, it is characterized in that: surveyed parameter is transferred to data acquisition equipment by data line by described pressure transducer (6) and vernier (2), and by computer by image data process, to realize digitized measurement.
6. digital vernier clearance ruler according to claim 1, is characterized in that: when described master link (10) is measured and tested mechanism surface keeping parallelism; Tested mechanism outside surface is close to by pressure transducer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673269.1U CN204177373U (en) | 2014-11-12 | 2014-11-12 | A kind of digital vernier clearance ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673269.1U CN204177373U (en) | 2014-11-12 | 2014-11-12 | A kind of digital vernier clearance ruler |
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| Publication Number | Publication Date |
|---|---|
| CN204177373U true CN204177373U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420673269.1U Expired - Fee Related CN204177373U (en) | 2014-11-12 | 2014-11-12 | A kind of digital vernier clearance ruler |
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| CN (1) | CN204177373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359378A (en) * | 2014-11-12 | 2015-02-18 | 西安交通大学 | Digital vernier gap gauge and application method thereof |
-
2014
- 2014-11-12 CN CN201420673269.1U patent/CN204177373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359378A (en) * | 2014-11-12 | 2015-02-18 | 西安交通大学 | Digital vernier gap gauge and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20181112 |