CN114111667B - A screw lead instrument measuring head mechanism and measuring method - Google Patents
A screw lead instrument measuring head mechanism and measuring method Download PDFInfo
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- CN114111667B CN114111667B CN202111462998.3A CN202111462998A CN114111667B CN 114111667 B CN114111667 B CN 114111667B CN 202111462998 A CN202111462998 A CN 202111462998A CN 114111667 B CN114111667 B CN 114111667B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 5
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
本发明涉及一种丝杠导程仪测量头机构及测量方法，该机构包括圆柱测杆、测杆座、测角轴、轴锁紧单元、角度调整单元、上滑座、下滑座、滑座移动单元、测角反馈单元、阻尼单元，所述上滑座通过滑座移动单元安装在下滑座上，所述测角轴安装在上滑座内，所述测角轴与上滑座之间设有轴锁紧单元，所述测角轴前端通过测杆座连接圆柱测杆，后部连接角度调整单元，后端穿过上滑座后连接测角反馈单元；所述下滑座安装在底板上，所述底板前端设有阻尼单元。本发明具有测量接触可靠、传递刚性高特点，且机构体积明显缩小，制造配套难度低，并能解决丝杠导程仪传统测量头的缺陷，为此类仪器提供了一条有效的解决途径。
The present invention relates to a screw lead gauge measuring head mechanism and a measuring method, the mechanism comprises a cylindrical measuring rod, a measuring rod seat, an angle measuring shaft, a shaft locking unit, an angle adjustment unit, an upper slide, a lower slide, a slide moving unit, an angle measuring feedback unit, and a damping unit, wherein the upper slide is installed on the lower slide via the slide moving unit, the angle measuring shaft is installed in the upper slide, a shaft locking unit is provided between the angle measuring shaft and the upper slide, the front end of the angle measuring shaft is connected to the cylindrical measuring rod via the measuring rod seat, the rear end is connected to the angle adjusting unit, and the rear end is connected to the angle measuring feedback unit after passing through the upper slide; the lower slide is installed on a bottom plate, and a damping unit is provided at the front end of the bottom plate. The present invention has the characteristics of reliable measurement contact and high transmission rigidity, and the volume of the mechanism is significantly reduced, the difficulty of manufacturing and matching is low, and it can solve the defects of the traditional measuring head of the screw lead gauge, providing an effective solution for such instruments.
Description
Technical Field
The invention relates to a lead screw lead gauge, in particular to a lead screw lead gauge measuring head mechanism and a measuring method.
Background
At present, a minimum measuring lead screw lead meter for measuring the pitch of 0.3mm is required to be embedded into a thread groove, and is reliably attached to the side surface of a thread, a mechanism is required to be capable of transmitting certain side load, and the lead screw lead meter has high performance requirements on a measuring head mechanism. The conventional ruby measuring needle can only be adopted in the conventional method, the diameter of the ruby head ball is required to be smaller than 0.15mm under the condition of measuring the small pitch, the manufacturing difficulty and the cost are high, the small-diameter measuring needle has poor rigidity, the lateral load transmission capability is extremely poor, the measurement error is easy to cause, and an effective solving way is required to be provided for the conditions.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide a measuring head mechanism and a measuring method for a lead screw lead meter, which are mainly used for the lead screw lead meter and ensure the reliable, high-rigidity and high-precision operation of the lead screw lead meter.
The technical scheme of the invention for solving the problems is as follows:
The screw lead instrument measuring head mechanism comprises a cylindrical measuring rod, a measuring rod seat, an angle measuring shaft, a shaft locking unit, an angle adjusting unit, an upper sliding seat, a lower sliding seat, a sliding seat moving unit, an angle measuring feedback unit and a damping unit, wherein the upper sliding seat is arranged on the lower sliding seat through the sliding seat moving unit, the angle measuring shaft is arranged in the upper sliding seat, the shaft locking unit is arranged between the angle measuring shaft and the upper sliding seat, the front end of the angle measuring shaft is connected with the cylindrical measuring rod through the measuring rod seat, the rear end of the angle measuring shaft is connected with the angle adjusting unit, the rear end of the angle measuring shaft penetrates through the upper sliding seat and then is connected with the angle measuring feedback unit, the lower sliding seat is arranged on a bottom plate, and the damping unit is arranged at the front end of the bottom plate.
Further, the cylindrical measuring rod is connected with the measuring rod seat in a bonding mode.
Further, the measuring rod seat comprises a plurality of diameter measuring rod seats, and the measuring rod seats can be respectively fixed with the end faces of the angle measuring shafts.
Further, the rotation degree of the angle measuring shaft is rotationally adjusted by the angle adjusting unit, and the rotation parameters according to the spiral angle of the threads are controlled and displayed through the angle measuring feedback unit, and the angle measuring shaft is reliably locked through the shaft locking unit.
The upper slide seat is driven by the slide seat moving unit to move on the lower slide seat, and the upper slide seat is used for realizing connection or disconnection of the damping unit so as to control the measuring head to move stably.
Further, during measurement, the cylindrical measuring rod is embedded into the thread groove and is contacted with the unilateral tooth surface.
The measuring method adopting the lead screw lead meter measuring head mechanism specifically comprises the following steps:
selecting a corresponding cylindrical measuring rod and a measuring rod seat according to the thread pitch, and fixing the measuring rod and the measuring rod seat on an angle measuring shaft;
step two, according to the spiral angle of the screw thread, an angle measuring shaft and a measuring rod seat are adjusted to corresponding angles through an angle adjusting unit and an angle measuring feedback unit, and are locked;
Thirdly, adjusting the lower sliding seat to the corresponding position according to different thread diameters, and reserving a movement adjusting space of the upper sliding seat;
Driving and adjusting the upper sliding seat through the moving unit, controlling the cylindrical measuring rod to be embedded into the threaded tooth groove, and ensuring that an axial gap exists between the cylindrical measuring rod and the threaded tooth groove so as to ensure that the cylindrical measuring rod cannot simultaneously contact with the side surface of the threaded tooth groove;
Fifthly, connecting a measuring head motion damping unit;
And step six, after the measurement is finished, the upper slide plate is controlled to move outwards, the cylindrical measuring rod is withdrawn from the threaded tooth groove, and the measuring head mechanism of the lead screw lead meter can move freely and axially.
The invention has the beneficial effects that the mechanism and the measuring method are adopted, so that the following aims are achieved:
1) The cylindrical measuring rod is a standard matched piece, has multiple diameter specifications, can be straight for 0.1mm at minimum, can adapt to threads with different pitches, and is convenient to purchase, short in matched time and low in cost.
2) After the cylindrical measuring rod is worn, the cylindrical measuring rod is fixed by adopting a bonding method, and the cylindrical measuring rod is fast and convenient to replace.
3) The cylindrical measuring rod is integrally arranged on the measuring seat, has high rigidity and high lateral bearing capacity, and can stably transmit measuring force.
4) Through angle measurement adjustment, the cylindrical surface of the cylindrical measuring rod is in tangential contact with the threaded teeth, so that the contact is reliable, and the measurement accuracy is high.
5) And the damping unit is adopted to control the whole movement of the measuring head mechanism to be stable.
Therefore, the invention can solve the defects of the traditional measuring head of the lead screw lead instrument, and provides an effective solving way for the instrument.
Drawings
FIG. 1 is a view showing the constitution of a measuring head mechanism of a lead screw lead meter according to the present invention;
figure 2 is a schematic view of a cylindrical spindle head of a lead screw lead meter measuring head of the present invention.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
As shown in fig. 1, a measuring head mechanism of a lead screw lead meter of the present embodiment includes a cylindrical measuring rod 1, a measuring rod seat 2, an angle measuring shaft 3, a shaft locking unit 4, an angle adjusting unit 5, an upper slide 6, an angle measuring feedback unit 7, a slide moving unit 8, a lower slide 9, a bottom plate 10, and a damping unit 11.
The upper slide seat 6 is arranged on the lower slide seat 9 through the slide seat moving unit 8, the upper slide seat 6 is provided with the angle measuring shaft 3, a shaft locking unit 4 is arranged between the angle measuring shaft 3 and the upper slide seat 6, the front end of the angle measuring shaft 3 is connected with the cylindrical measuring rod 1 through the measuring rod seat 2, the rear end is connected with the angle adjusting unit 5, and the rear end is connected with the angle measuring feedback unit 7 after passing through the upper slide seat 6. The lower slide 9 is mounted on a bottom plate 10, and a damping unit 11 is arranged at the front end of the bottom plate 10.
The cylindrical measuring rod 1 is connected with the measuring rod seat 2 by adopting a bonding method. The measuring rod seat 2 comprises measuring rod seats with various diameters, and can be respectively fixed with the end face of the angle measuring shaft 3, the angle measuring shaft 3 can rotate, the angle of the angle measuring shaft is controlled and displayed by the angle adjusting unit 5 and the angle measuring feedback unit 7, the rotation parameters are reliably locked by the shaft locking unit 4 according to the spiral angle of threads, the upper sliding seat 6 can be driven by the moving unit 8 to move on the lower sliding seat 9, and the measuring head can be controlled to stably move by connecting and disconnecting the damping unit 11.
As shown in figure 2, the cylindrical measuring rod head structure is that a cylindrical measuring rod 1 is connected with a measuring rod seat 2, is embedded into a thread groove and is contacted with a single-side tooth surface during measurement.
A measuring method adopting a lead screw lead meter measuring head mechanism comprises the following steps:
Firstly, selecting a corresponding cylindrical measuring rod 1 and a measuring rod seat 2 according to the thread pitch, and fixing the corresponding cylindrical measuring rod and measuring rod seat on the front end surface of an angle measuring shaft 3.
Secondly, according to the screw thread helix angle, the angle measuring shaft 3 and the measuring rod seat 2 are adjusted to corresponding angles through the angle adjusting unit 5 and the angle measuring feedback unit 7, and are reliably locked through the shaft locking unit 4.
Thirdly, according to different thread diameters, the lower slide seat 9 is adjusted to the corresponding position, and the movement allowance of the upper slide seat 6 is reserved.
Fourth, drive adjustment upper slide 6 through mobile unit 8, control cylinder measuring staff 1 imbeds the screw thread tooth groove, need make cylinder measuring staff 1 and screw thread tooth groove leave the axial clearance to ensure that cylinder measuring staff 1 can not contact simultaneously with the screw thread side simultaneously.
Fifth, a measuring head motion damping unit 11 is connected.
And sixthly, after the measurement is finished, the upper sliding seat 6 is controlled to move outwards, the measuring head 1 is withdrawn from the thread, and the measuring head mechanism of the lead screw lead meter can move freely and axially.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The measuring head mechanism of the lead screw lead meter comprises a cylindrical measuring rod, a measuring rod seat, an angle measuring shaft, a shaft locking unit, an angle adjusting unit, an upper sliding seat, a lower sliding seat, a sliding seat moving unit, an angle measuring feedback unit and a damping unit, wherein the upper sliding seat is arranged on the lower sliding seat through the sliding seat moving unit, the angle measuring shaft is arranged in the upper sliding seat, the shaft locking unit is arranged between the angle measuring shaft and the upper sliding seat, the front end of the angle measuring shaft is connected with the cylindrical measuring rod through the measuring rod seat, the rear end of the angle measuring shaft is connected with the angle adjusting unit, and the rear end of the angle measuring shaft passes through the upper sliding seat and is connected with the angle measuring feedback unit; the lower sliding seat is arranged on the bottom plate, and the front end of the bottom plate is provided with a damping unit, and the measuring method is characterized by specifically comprising the following steps of:
selecting a corresponding cylindrical measuring rod and a measuring rod seat according to the thread pitch, and fixing the measuring rod and the measuring rod seat on an angle measuring shaft;
step two, according to the spiral angle of the screw thread, an angle measuring shaft and a measuring rod seat are adjusted to corresponding angles through an angle adjusting unit and an angle measuring feedback unit, and are locked;
Thirdly, adjusting the lower sliding seat to the corresponding position according to different thread diameters, and reserving a movement adjusting space of the upper sliding seat;
Driving and adjusting the upper sliding seat through the moving unit, controlling the cylindrical measuring rod to be embedded into the threaded tooth groove, and ensuring that an axial gap exists between the cylindrical measuring rod and the threaded tooth groove so as to ensure that the cylindrical measuring rod cannot simultaneously contact with the side surface of the threaded tooth groove;
Fifthly, connecting a measuring head motion damping unit;
And step six, after the measurement is finished, the upper slide plate is controlled to move outwards, the cylindrical measuring rod is withdrawn from the threaded tooth groove, and the measuring head mechanism of the lead screw lead meter can move freely and axially.
2. The method of claim 1, wherein the cylindrical measuring rod is connected with the measuring rod seat by bonding.
3. The method of claim 1, wherein the spindle holder comprises a plurality of diameter spindle holders capable of being fixed to the end surfaces of the spindle.
4. The method of claim 1, wherein the rotation angle of the angular shaft is adjusted by the angle adjusting unit, and the rotation parameters according to the screw pitch angle are controlled and displayed by the angular feedback unit, and the angular shaft is locked by the shaft locking unit.
5. The method of claim 1, wherein the upper carriage is driven to move on the lower carriage by a carriage moving unit, and the upper carriage is used for connecting or disconnecting a damping unit to control the stable movement of the measuring head.
6. The method of claim 1, wherein the cylindrical measuring rod is inserted into the thread groove and contacts with the single-sided tooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462998.3A CN114111667B (en) | 2021-12-02 | 2021-12-02 | A screw lead instrument measuring head mechanism and measuring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462998.3A CN114111667B (en) | 2021-12-02 | 2021-12-02 | A screw lead instrument measuring head mechanism and measuring method |
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| Publication Number | Publication Date |
|---|---|
| CN114111667A CN114111667A (en) | 2022-03-01 |
| CN114111667B true CN114111667B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111462998.3A Active CN114111667B (en) | 2021-12-02 | 2021-12-02 | A screw lead instrument measuring head mechanism and measuring method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116295177A (en) * | 2022-12-14 | 2023-06-23 | 中国船舶集团有限公司第七〇四研究所 | Floating measuring head mechanism of lead screw lead meter and measuring method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907441A (en) * | 2009-06-03 | 2010-12-08 | 上海莱恩精密机床附件有限公司 | Laser Pitch Measuring Instrument for Ball Screw and Its Measuring Method |
| CN102788543A (en) * | 2011-05-17 | 2012-11-21 | 瓦房店光阳轴承集团有限公司 | Lathed solid retainer measuring instrument and measuring method |
| CN217541852U (en) * | 2021-12-02 | 2022-10-04 | 中国船舶重工集团公司第七0四研究所 | Measuring head mechanism of lead screw lead gauge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005016972A (en) * | 2003-06-23 | 2005-01-20 | Tokyo Seimitsu Co Ltd | Measuring head |
| CN203908487U (en) * | 2014-06-12 | 2014-10-29 | 国家电网公司 | Portable measuring device for cable thickness measurement |
| CN109556512B (en) * | 2018-11-20 | 2020-03-17 | 西安交通大学 | Pipe thread is measuring device at piece |
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- 2021-12-02 CN CN202111462998.3A patent/CN114111667B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907441A (en) * | 2009-06-03 | 2010-12-08 | 上海莱恩精密机床附件有限公司 | Laser Pitch Measuring Instrument for Ball Screw and Its Measuring Method |
| CN102788543A (en) * | 2011-05-17 | 2012-11-21 | 瓦房店光阳轴承集团有限公司 | Lathed solid retainer measuring instrument and measuring method |
| CN217541852U (en) * | 2021-12-02 | 2022-10-04 | 中国船舶重工集团公司第七0四研究所 | Measuring head mechanism of lead screw lead gauge |
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