CN217394489U - Floating mechanism of numerical control measuring head - Google Patents
Floating mechanism of numerical control measuring head Download PDFInfo
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- CN217394489U CN217394489U CN202220796211.0U CN202220796211U CN217394489U CN 217394489 U CN217394489 U CN 217394489U CN 202220796211 U CN202220796211 U CN 202220796211U CN 217394489 U CN217394489 U CN 217394489U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
A float mechanism for a numerically controlled measurement head, comprising: the device comprises a measuring pin, a swinging core, a base, metal balls, metal rods and a floating assembly, wherein three metal rods arranged on the periphery of the swinging core are respectively in contact with two metal balls below the swinging core to form electric communication; the advantages are as follows: the roundness in the 360-degree detection process is improved, and the measurement precision is improved; the floating mechanism has simple structure and low modification cost; the diameter size of the measuring end of the measuring head is reduced, and the measuring head is suitable for embedded measuring operation of deep groove parts.
Description
Technical Field
The utility model relates to a digit control machine tool processing, measurement technical field specifically are a relocation mechanism of numerical control measuring head.
Background
A numerically controlled machine tool is an automated machine tool equipped with a program control system, which is capable of operating the machine tool and machining parts according to a programmed program. The numerical control machine tool integrates the latest technologies of machinery, automation, computers, measurement, microelectronics and the like, and uses various sensors, wherein a measuring head is combined with a three-coordinate system to realize automatic size measurement. The measuring needle is a structure used for contact measurement in the measuring head, and can swing after contacting with a tested part, so that the output of an electric signal is completed in the swinging process, and the measuring operation of the measuring head is completed. The survey probe is connected with the swing mechanism in the gauge head, is provided with three electrically conductive metal pole and metal pole among the swing mechanism and is located between two electrically conductive metal balls among the prior art, and the circuit switches on through contacting between metal pole and the metal ball when the survey probe is at 360 within range rotations, and the defect is as follows:
the three metal rods are respectively positioned at the vertexes of the equilateral triangle, and the forces required by swinging in the vertex direction and the bottom edge direction are different, so that the roundness is poor when the equilateral triangle rotates by 360 degrees, and the measurement precision is triangular;
secondly, when the measuring pin is subjected to ejection force, only rigid ejection is performed, and the measuring head is easy to damage;
thirdly, the measuring head can not solve the problems and can meet the detection requirement of the bottom wall of the deep groove;
the utility model provides a floating machanism of numerical control measuring head solves above-mentioned one or more technical problem.
SUMMERY OF THE UTILITY MODEL
A float mechanism for a numerically controlled measurement head, comprising: the measuring probe is connected with the swinging core, the swinging core is directly or indirectly connected with the measuring head shell through a spring, three groups of metal ball accommodating holes are processed on the upper plate surface of the base, each group of metal ball accommodating hole comprises two metal ball accommodating holes which are arranged at intervals, one metal ball is installed in each metal ball accommodating hole, three metal rod installing holes which are arranged at equal angles are processed on the swinging core along the direction of a central axis, and one metal rod which is parallel to the horizontal plane is installed in each metal rod installing hole; in the non-working state: the other end of the metal rod is positioned above the two metal balls in an inclined mode and is in contact with the two metal balls, and a circuit is connected; under the working state, at least one metal rod is separated from at least one metal ball obliquely below the metal rod, the circuit is disconnected, a floating assembly is arranged between the swinging core and the base, and the floating assembly is arranged to improve the measuring precision within the range of 360 degrees or/and form floating force to avoid rigid ejection or/and reduce the diameter size of the measuring head.
Preferably, the floating mechanism of the numerical control measuring head comprises 6N auxiliary metal balls and 3N auxiliary springs, auxiliary spring mounting holes with the same number as the auxiliary springs are machined in the swinging core, the auxiliary springs are mounted in the auxiliary spring mounting holes, and the N auxiliary springs are arranged between every two adjacent metal rods; 3N groups of auxiliary metal ball accommodating holes are correspondingly processed on the surface of the base plate, each group of auxiliary metal ball accommodating holes comprises two auxiliary metal ball accommodating holes arranged at intervals, and the auxiliary metal balls are arranged in the auxiliary metal ball accommodating holes; in the non-working state: the auxiliary spring is in contact with two auxiliary metal balls at the oblique lower part, and N is a positive natural number.
Preferably, in the floating mechanism of the numerical control measuring head, N auxiliary springs are arranged between two adjacent metal rods; when N is an odd number, the (N + 1)/2 th auxiliary spring and the opposite metal rod are in the same diameter direction, and the rest (N-1) auxiliary springs are symmetrically arranged at two sides of the auxiliary spring at the central position; when N is an even number, the N auxiliary springs are symmetrically arranged on two sides of the diameter of the metal rod opposite to the N auxiliary springs.
Preferably, in the floating mechanism of the numerical control measuring head, the diameter of the auxiliary metal ball is smaller than that of the metal ball.
Preferably, in the floating mechanism of the numerical control measuring head, the auxiliary springs are installed in parallel to a horizontal plane where the three metal rods are located, and the installation heights of the three auxiliary springs are lower than the installation height of the metal rod.
Preferably, in the floating mechanism of the numerical control measuring head, the auxiliary spring is arranged obliquely downwards along the direction of the swing core and the auxiliary metal ball.
Moreover, when the probe is subjected to pushing force in the operation process, the floating component can generate floating component force on the lifting plane through the auxiliary spring, so that the rigidity effect is avoided, the measuring head is protected, and the service life is prolonged.
The advantages are as follows:
(1) the utility model relates to a numerical control measuring head floating mechanism improves the roundness of a measuring head in the 360-degree detection process by arranging a floating assembly, and improves the measurement precision;
(2) the utility model relates to a floating mechanism of a numerical control measuring head, which has simple structure and low transformation cost;
(3) the utility model relates to a numerical control measuring head relocation mechanism can reduce the volume of measuring head on guaranteeing measurement accuracy's basis according to the size that reduces supplementary metal ball, change auxiliary spring's size and assembly direction, is applicable to the embedded measurement operation of degree of depth groove spare part.
Drawings
The embodiments are further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic overall view of a floating mechanism of a digital control measuring head corresponding to embodiment 1;
FIG. 2 is a top view of a floating mechanism of the NC measuring head in accordance with embodiment 1;
FIG. 3 is a top view of a floating mechanism of the numerically controlled measuring head according to embodiment 2;
fig. 4 is a partial structural plan view of the floating mechanism of the corresponding numerical control measuring head when N =1 in embodiment 3;
FIG. 5 is a plan view of the structure in which the installation height of the auxiliary spring is lower than that of the metal rod;
the specific structure corresponding to the number is as follows:
a measuring probe 1, a swing core 2, a base 3, a metal ball 4, a metal rod 5, an auxiliary metal ball 6, an auxiliary spring 7,
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
a float mechanism for a numerically controlled measurement head, comprising: the measuring device comprises a measuring pin 1, a swinging core 2, a base 3, metal balls 4, metal rods 5 and a floating assembly, wherein the measuring pin 1 is connected with the swinging core 2, the swinging core 2 is directly or indirectly connected with a measuring head shell through a spring, three groups of metal ball accommodating holes are processed on the upper plate surface of the base 3, each group of metal ball accommodating holes comprises two metal ball accommodating holes which are arranged at intervals, one metal ball 4 is installed in each metal ball accommodating hole, three metal rod installing holes which are arranged at equal angles are processed on the swinging core 2 along the direction of a central axis, and one metal rod 5 which is parallel to the horizontal plane is installed in each metal rod installing hole; in the non-working state: the other end of the metal rod 5 is positioned above the two metal balls 4 at the corresponding position and contacts with the two metal balls 4, and the circuit is switched on; under the working state, at least one metal rod 5 is separated from at least one metal ball 4 below the metal rod in an inclined mode, a circuit is disconnected, a floating assembly is arranged between the swing core 2 and the base 3, the floating assembly is arranged to improve the measuring precision within the range of 360 degrees, and floating force is formed to avoid rigid ejection.
The floating assembly comprises 6 auxiliary metal balls 6 and 3 auxiliary springs 7, auxiliary spring mounting holes with the same number as the auxiliary springs 7 are machined in the swing core 2, the auxiliary springs 7 are mounted in the auxiliary spring mounting holes, and 1 auxiliary spring is arranged between every two adjacent metal rods 5; 3 groups of auxiliary metal ball accommodating holes are correspondingly processed on the surface of the base 3, and the auxiliary metal balls 6 are arranged in the auxiliary metal ball accommodating holes; in a non-working state: the auxiliary spring 7 is in contact with two auxiliary metal balls obliquely below.
Further, the three auxiliary springs are respectively located at the middle position of two adjacent metal rods 5, namely, at the two end parts of the same diameter of the metal rod 5 opposite to the middle position.
Further, the diameter of the auxiliary metal ball 6 is smaller than that of the metal ball 4.
Further, the auxiliary springs 7 are installed in parallel to the horizontal plane where the three metal rods 5 are located, and the installation height of the three auxiliary springs 7 is lower than that of the metal rods 5.
Reduce supplementary metal ball 6's diameter, the area that occupies base 3 that can still be less, accomplish the installation of the subassembly that floats under the condition that does not increase the base area (do not increase the test head volume promptly), the mounting height of auxiliary spring 7 is less than metal pole 5, measure the swing in-process when the survey probe, the more effective balanced pendulum power of auxiliary spring among the floating assembly, guarantee the effect of the subassembly that floats under the prerequisite of the less measurement head volume of trying to the greatest extent promptly, make measurement accuracy be hexagon distribution, improve the overall measurement precision.
Specific embodiment example 2:
a float mechanism for a numerically controlled measurement head, comprising: the measuring device comprises a measuring pin 1, a swinging core 2, a base 3, metal balls 4, metal rods 5 and a floating assembly, wherein the measuring pin 1 is connected with the swinging core 2, the swinging core 2 is directly or indirectly connected with a measuring head shell through a spring, three groups of metal ball accommodating holes are processed on the upper plate surface of the base 3, each group of metal ball accommodating holes comprises two metal ball accommodating holes which are arranged at intervals, one metal ball 4 is installed in each metal ball accommodating hole, three metal rod installing holes which are arranged at equal angles are processed on the swinging core 2 along the direction of a central axis, and one metal rod 5 which is parallel to the horizontal plane is installed in each metal rod installing hole; in the non-working state: the other end of the metal rod 5 is positioned above the two metal balls 4 at the corresponding position and contacts with the two metal balls 4, and the circuit is switched on; under the operating condition, at least one metal rod 5 breaks away from at least one metal ball 4 below rather than the slope, the circuit disconnection, swing core 2 with be provided with the subassembly that floats between the base 3, through setting up the subassembly that floats improves 360 measuring precision within ranges, forms the floating force and avoids rigid ejection or reduce the diameter size of measuring head, makes the measuring head make things convenient for whole or partial entering accomplish measurement work in the deep troughed structure.
Further, the floating assembly comprises 12 auxiliary metal balls 6 and 6 auxiliary springs 7, auxiliary spring mounting holes with the same number as the auxiliary springs 7 are machined in the swing core 2, the auxiliary springs 7 are mounted in the auxiliary spring mounting holes, and 2 auxiliary springs are arranged between every two adjacent metal rods 5; 6 groups of auxiliary metal ball accommodating holes are correspondingly processed on the surface of the base 3, and the auxiliary metal balls 6 are arranged in the auxiliary metal ball accommodating holes; in the non-working state: the auxiliary spring 7 is in contact with two auxiliary metal balls obliquely below.
Furthermore, two auxiliary springs 7 between two adjacent metal rods 5 are symmetrically distributed on two sides of the diameter of the metal rod 5 opposite to the two auxiliary springs.
Further, the diameter of the auxiliary metal ball 6 is smaller than that of the metal ball 4.
Further, the auxiliary spring 7 is installed in parallel to a horizontal plane where the three metal rods 5 are located, and the installation height of the three auxiliary springs 7 is lower than that of the metal rods 5.
Reduce the diameter of supplementary metal ball 6, the area that occupies base 3 that can still be less, the installation of the subassembly that floats is accomplished under the condition that does not increase the base area (do not increase the test head volume promptly), the mounting height of auxiliary spring 7 is less than metal pole 5, measure the swing in-process when the survey needle, the more effective balanced pendulum power of auxiliary spring in the subassembly that floats, guarantee the effect of subassembly that floats under the prerequisite of the less measurement head volume of trying to get to the greatest extent promptly, make measurement accuracy be hexagon distribution, improve whole measurement accuracy.
Specific embodiment example 3:
the utility model provides a floating machanism of numerical control measuring head, includes that measuring stylus 1, swing core 2, base 3, metal ball 4, metal pole 5, the subassembly that floats, through setting up the subassembly that floats improves 360 within ranges measuring precision, forms the floating force and avoids rigidity ejection or reduce the diameter size of measuring head, makes the convenient whole or partial completion measurement work that gets into in the deep trouth structure of measuring head.
The auxiliary spring 7 is obliquely arranged downwards along the directions of the swing core 2 and the auxiliary metal ball 6, and the corresponding auxiliary spring mounting hole is also an inclined hole. After the auxiliary spring 7 is obliquely arranged, the diameter of the base 3 can be further reduced, the diameter of the measuring head is further reduced, the whole measuring head is of a slender structure, the slender measuring head can partially or completely enter the depth groove to perform measuring operation, and meanwhile, the measuring precision of the measuring head for the depth groove can be further improved.
Other technical means are the same as those of embodiment 1 or embodiment 2 in whole or in part.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a relocation mechanism of numerical control measuring head which characterized in that: the measuring probe is connected with the swinging core, the swinging core is directly or indirectly connected with the measuring head shell through a spring, three groups of metal ball accommodating holes are processed on the upper plate surface of the base, each group of metal ball accommodating hole comprises two metal ball accommodating holes which are arranged at intervals, one metal ball is installed in each metal ball accommodating hole, three metal rod installing holes which are arranged at equal angles are processed on the swinging core along the direction of a central axis, and one metal rod which is parallel to the horizontal plane is installed in each metal rod installing hole; in the non-working state: the other end of the metal rod is positioned above the two metal balls in an inclined mode and is in contact with the two metal balls, and a circuit is connected; under the working state, at least one metal rod is separated from at least one metal ball obliquely below the metal rod, the circuit is disconnected, a floating assembly is arranged between the swinging core and the base, and the floating assembly is arranged to improve the measuring precision within the range of 360 degrees or/and form floating force to avoid rigid ejection or/and reduce the diameter size of the measuring head.
2. A floating mechanism for a numerically controlled measuring head as recited in claim 1, wherein: the floating assembly comprises 6N auxiliary metal balls and 3N auxiliary springs, auxiliary spring mounting holes with the same number as the auxiliary springs are machined in the swing core, the auxiliary springs are mounted in the auxiliary spring mounting holes, and the N auxiliary springs are arranged between every two adjacent metal rods; 3N groups of auxiliary metal ball accommodating holes are correspondingly processed on the surface of the base plate, each group of auxiliary metal ball accommodating holes comprises two auxiliary metal ball accommodating holes arranged at intervals, and the auxiliary metal balls are arranged in the auxiliary metal ball accommodating holes; in the non-working state: the auxiliary spring is in contact with two auxiliary metal balls at the oblique lower part, and N is a positive natural number.
3. A floating mechanism for a numerically controlled measuring head as recited in claim 2, wherein: n auxiliary springs are arranged between two adjacent metal rods; when N is an odd number, the (N + 1)/2 th auxiliary spring and the opposite metal rod are in the same diameter direction, and the rest (N-1) auxiliary springs are symmetrically arranged at two sides of the auxiliary spring at the central position; when N is an even number, the N auxiliary springs are symmetrically arranged on two sides of the diameter of the metal rod opposite to the N auxiliary springs.
4. A floating mechanism for a numerically controlled measuring head as recited in claim 2, wherein: the diameter of the auxiliary metal ball is smaller than that of the metal ball.
5. A floating mechanism of a numerically controlled measuring head as claimed in any one of claims 2 to 4, wherein: the auxiliary springs are arranged in parallel to the horizontal plane where the three metal rods are located, and the installation height of the three auxiliary springs is lower than that of the metal rods.
6. A floating mechanism of a numerically controlled measuring head as claimed in any one of claims 2 to 4, wherein: the auxiliary spring is obliquely arranged downwards along the directions of the swing core and the auxiliary metal ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220796211.0U CN217394489U (en) | 2022-04-08 | 2022-04-08 | Floating mechanism of numerical control measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220796211.0U CN217394489U (en) | 2022-04-08 | 2022-04-08 | Floating mechanism of numerical control measuring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217394489U true CN217394489U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220796211.0U Active CN217394489U (en) | 2022-04-08 | 2022-04-08 | Floating mechanism of numerical control measuring head |
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| Country | Link |
|---|---|
| CN (1) | CN217394489U (en) |
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2022
- 2022-04-08 CN CN202220796211.0U patent/CN217394489U/en active Active
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