CN112815888A - Measuring rod structure for measuring profile and thread - Google Patents
Measuring rod structure for measuring profile and thread Download PDFInfo
- Publication number
- CN112815888A CN112815888A CN202110062010.8A CN202110062010A CN112815888A CN 112815888 A CN112815888 A CN 112815888A CN 202110062010 A CN202110062010 A CN 202110062010A CN 112815888 A CN112815888 A CN 112815888A
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- measuring
- measuring rod
- permanent magnet
- electromagnetic coil
- electromagnetic
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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
-
- 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
- G01B21/20—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 contours or curvatures, e.g. determining profile
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a measuring rod structure for measuring profile and thread, comprising: the measuring rod comprises a measuring rod and an electromagnetic adjusting mechanism, wherein the electromagnetic adjusting mechanism comprises an upper electromagnetic coil and a lower electromagnetic coil which are symmetrically arranged, an electromagnetic field is formed between the upper electromagnetic coil and the lower electromagnetic coil, a fulcrum bearing is installed in the middle of the measuring rod, the measuring rod generates angle change by taking the fulcrum bearing as a center, a permanent magnet is installed at the tail end of the measuring rod, and the permanent magnet is columnar and the end part of the permanent magnet extends into the electromagnetic field. The invention balances the permanent magnet after electrifying the upper and lower electromagnetic coils, and drives the permanent magnet to push the measuring rod, thereby adjusting the detection force of the measuring head on the detected contour, the end part of the measuring rod generates angle change by taking a rotating fulcrum as a center when contacting the detected contour, the displacement sensor detects the angle change generated by the measuring rod when detecting a detected object, and adjusts the current of the upper and lower electromagnetic coils according to the detection result, thereby controlling the force value of the measuring head.
Description
Technical Field
The invention relates to the technical field of thread measurement, in particular to a measuring rod structure for measuring a profile and a thread.
Background
The thread is a type of mechanical parts which are most widely applied in the mechanical industry, and the main purposes are fastening, sealing, power transmission and displacement transmission, so that the measurement reliability of the thread is very important as common mechanical parts. Besides the mechanical properties of the threaded part are related to materials and processing techniques, the processing quality of geometric parameters is also an important factor influencing the properties of the threaded part. Therefore, the detection of the geometrical parameters of the threads is an important link in the production process of the threaded parts. The thread is measured, analyzed and evaluated, so that the use of unqualified threads can be effectively reduced, and the connection failure is prevented.
At present, the existing profile and thread measuring device adopts a measuring rod to detect the profile and the thread, the measuring rod is fixed during detection, the detection force of the measuring rod cannot be adjusted and measured, and the detection effect is poor. For this reason, a new scheme needs to be designed to give improvements.
Disclosure of Invention
The invention aims to provide a measuring rod structure for measuring a profile and a thread, solves the problems in the background art, and meets the actual use requirements.
In order to achieve the purpose, the invention provides the following technical scheme: a profile and thread measuring spindle structure comprising: the measuring rod comprises a measuring rod and an electromagnetic adjusting mechanism, wherein the electromagnetic adjusting mechanism comprises an upper electromagnetic coil and a lower electromagnetic coil which are symmetrically arranged, an electromagnetic field is formed between the upper electromagnetic coil and the lower electromagnetic coil, a fulcrum bearing is installed in the middle of the measuring rod, the measuring rod generates angle change by taking the fulcrum bearing as a center, a permanent magnet is installed at the tail end of the measuring rod, the permanent magnet is columnar, the end part of the permanent magnet extends into the electromagnetic field, and after the upper electromagnetic coil and the lower electromagnetic coil are electrified, a magnetic field is generated in the electromagnetic field and pushes the permanent magnet to move in the vertical direction.
In a preferred embodiment of the present invention, the measuring bar is made of a carbon fiber material, and measuring pins are respectively installed on both sides of the front end of the measuring bar, and the measuring bar generates an angle change to adjust the force of the measuring pins.
As a preferred embodiment of the present invention, a displacement sensor is disposed on one side of the permanent magnet, and the displacement sensor detects a distance at which the permanent magnet generates a vertical displacement, and measures a detection force of the measuring needle with respect to the object to be measured.
As a preferred embodiment of the present invention, a sensor mounting seat is sleeved at a joint of the permanent magnet and the measuring rod, and the sensor mounting seat is fixedly connected with the displacement sensor.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, after the upper and lower electromagnetic coils are electrified, the permanent magnet is balanced, and the permanent magnet is driven to push the measuring rod, so that the detection force of the measuring head on the detected contour (thread) is adjusted, the end part of the measuring rod generates angle change by taking a rotating fulcrum as a center when contacting the detected contour, the displacement sensor detects the angle change generated by the measuring rod when detecting a detected object, and the current of the upper and lower electromagnetic coils is adjusted according to the detection result, so that the force value of the measuring head is controlled.
Drawings
FIG. 1 is a block diagram of a profile and thread measuring spindle configuration according to the present invention;
FIG. 2 is a front view of a profile and thread measuring spindle configuration according to the present invention.
In the figure, 1, a measuring rod; 2. a fulcrum bearing; 3. a permanent magnet; 4. a sensor mount; 5. a displacement sensor; 6. an upper electromagnetic coil; 7. a lower electromagnetic coil; 8. and (6) measuring the needle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a profile and thread measuring spindle structure comprising: the measuring rod comprises a measuring rod 1 and an electromagnetic adjusting mechanism, wherein the electromagnetic adjusting mechanism comprises an upper electromagnetic coil 6 and a lower electromagnetic coil 7 which are symmetrically arranged, an electromagnetic field is formed between the upper electromagnetic coil 6 and the lower electromagnetic coil 7, a fulcrum bearing 2 is installed in the middle of the measuring rod 1, the measuring rod 1 generates angle change by taking the fulcrum bearing 2 as a center, a permanent magnet 3 is installed at the tail end of the measuring rod 1, the permanent magnet 3 is columnar, the end part of the permanent magnet 3 extends into the electromagnetic field, a magnetic field is generated in the electromagnetic field after the upper electromagnetic coil 6 and the lower electromagnetic coil 7 are electrified and pushes the permanent magnet 3 to perform vertical displacement, the measuring rod 1 is driven to rotate after the end part of the permanent magnet 3 generates displacement, the measuring rod 1 rotates and adjusts by taking the fulcrum bearing 2 as the center.
Further improved, the measuring rod 1 is made of carbon fiber materials, the carbon fibers have excellent performances such as light weight, high strength, high friction resistance and corrosion resistance, the service life of the measuring rod 1 is prolonged, electric energy consumed during adjustment of the angle of the measuring rod 1 is increased, the measuring pins 8 are respectively installed on two sides of the front end of the measuring rod 1, the measuring rod 1 generates angle change to adjust the force of the measuring pins 8, the end parts of the measuring pins 8 are in contact with the measured profile and the threads, and the angle of the measuring rod 1 is adjusted to adjust the detection force of the measuring pins 8 on the profile and the threads.
In a further improvement, a displacement sensor 5 is arranged on one side of the permanent magnet 3, the displacement sensor 5 detects the distance of the vertical displacement generated by the permanent magnet 3, the detection force of the measuring needle 8 on the object to be detected is measured, and the displacement sensor 5 is used for measuring the displacement and can be replaced by a grating, a capacitive grating, a magnetic grating and the like.
Specifically, a sensor mounting seat 4 is sleeved at the joint of the permanent magnet 3 and the measuring rod 1, the sensor mounting seat 4 is fixedly connected with the displacement sensor 5, and the sensor mounting seat 4 is sleeved from the end of the permanent magnet 3, moves to the joint of the permanent magnet 3 and the measuring rod 1 and is fixed.
When the measuring head is used, the upper electromagnetic coil 7 and the lower electromagnetic coil 7 are electrified to balance the permanent magnet 3, and the permanent magnet 3 is driven to push the measuring rod 1, so that the detection force of the measuring head on a detected contour (thread) is adjusted, the end part of the measuring rod 1 generates angle change by taking a rotating fulcrum as a center when contacting the detected contour, the displacement sensor 5 detects the angle change generated when the measuring rod 1 detects a detected object, and the current magnitude of the upper electromagnetic coil 7 and the lower electromagnetic coil 7 is adjusted according to a detection result, so that the force value of the measuring head is controlled.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A profile and thread measuring spindle structure comprising: measuring staff (1) and electromagnetic adjusting mechanism, its characterized in that: the electromagnetic adjusting mechanism comprises an upper electromagnetic coil (6) and a lower electromagnetic coil (7) which are symmetrically arranged, an electromagnetic field is formed between the upper electromagnetic coil (6) and the lower electromagnetic coil (7), a fulcrum bearing (2) is installed in the middle of the measuring rod (1), the measuring rod (1) generates angle change by taking the fulcrum bearing (2) as a center, a permanent magnet (3) is installed at the tail end of the measuring rod (1), the permanent magnet (3) is columnar, the end part of the permanent magnet extends into the electromagnetic field, and the upper electromagnetic coil (6) and the lower electromagnetic coil (7) generate a magnetic field in the electromagnetic field after being electrified and push the permanent magnet (3) to move in the vertical direction.
2. A profile and thread measuring staff structure according to claim 1 and characterized in that: the measuring rod (1) is made of carbon fiber materials, measuring pins (8) are respectively installed on two sides of the front end of the measuring rod (1), and the measuring rod (1) generates angle changes to adjust the force of the measuring pins (8).
3. A profile and thread measuring staff structure according to claim 1 and characterized in that: one side of permanent magnet (3) is provided with displacement sensor (5), and displacement sensor (5) detect permanent magnet (3) and produce the distance of vertical displacement, measure probe (8) to the measuring object's detection dynamics.
4. A profile and thread measuring staff structure according to claim 1 and characterized in that: the sensor mounting seat (4) is sleeved at the joint of the permanent magnet (3) and the measuring rod (1), and the sensor mounting seat (4) is fixedly connected with the displacement sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110062010.8A CN112815888A (en) | 2021-01-18 | 2021-01-18 | Measuring rod structure for measuring profile and thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110062010.8A CN112815888A (en) | 2021-01-18 | 2021-01-18 | Measuring rod structure for measuring profile and thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112815888A true CN112815888A (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110062010.8A Pending CN112815888A (en) | 2021-01-18 | 2021-01-18 | Measuring rod structure for measuring profile and thread |
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| Country | Link |
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| CN (1) | CN112815888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045797A (en) * | 2023-01-13 | 2023-05-02 | 山东中科普锐检测技术有限公司 | Stylus type contour measuring instrument |
-
2021
- 2021-01-18 CN CN202110062010.8A patent/CN112815888A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045797A (en) * | 2023-01-13 | 2023-05-02 | 山东中科普锐检测技术有限公司 | Stylus type contour measuring instrument |
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