CN113884046A - Cylindrical product outer diameter measuring device and method - Google Patents
Cylindrical product outer diameter measuring device and method Download PDFInfo
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- CN113884046A CN113884046A CN202010627795.4A CN202010627795A CN113884046A CN 113884046 A CN113884046 A CN 113884046A CN 202010627795 A CN202010627795 A CN 202010627795A CN 113884046 A CN113884046 A CN 113884046A
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- 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
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Abstract
The embodiment of the application belongs to the technical field of cylindrical product measurement, and relates to a cylindrical product outer diameter measuring device and method. The technical scheme provided by the application comprises a base, a product shaft, a swing rod assembly and an angle sensor; the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected onto the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be abutted against and sleeved on a product on the product shaft, the angle sensor detects an angle between a state that the swing rod assembly is abutted against and sleeved on the product shaft and a preset state of the swing rod assembly, and therefore the outer diameter of the product is obtained. The device for measuring the outer diameter of the cylindrical product is not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also is suitable for flexible material roll cylindrical products. Under the condition of ensuring the precision, the method has the advantages of high measurement efficiency, lower cost and obvious cost advantage.
Description
Technical Field
The application relates to a cylindrical product measuring technology, in particular to a cylindrical product outer diameter measuring device and method.
Background
With the development of modern industry, cylindrical products are diversified, but the outer diameter of the cylindrical products is one of important dimensions, and measuring methods thereof are diversified, but the scheme effects of high precision, high effect and low cost are always difficult to satisfy. According to the technical scheme of measuring the outer diameter of the cylinder through the linear displacement sensor and the area laser sensor in the prior art, the cost is high, and the application scene is limited.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the outer diameter of a cylindrical product, which are not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also applicable to flexible material roll cylindrical products. Under the condition of ensuring the precision, the method has the advantages of high measurement efficiency, lower cost and obvious cost advantage.
In order to solve the above-mentioned problems, embodiments of the present invention provide the following technical solutions:
a cylindrical product outer diameter measuring device comprises a base, a product shaft, a swing rod assembly and an angle sensor;
the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected onto the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be abutted against and sleeved on a product on the product shaft, the angle sensor detects an angle between a state that the swing rod assembly is abutted against and sleeved on the product shaft and a preset state of the swing rod assembly, and therefore the outer diameter of the product is obtained.
Furthermore, the swing rod assembly comprises a swing rod shaft, a floating swing rod and a swing rod pressing roller, the swing rod shaft is rotatably connected with the angle sensor, one end of the floating swing rod is fixedly connected to the swing rod shaft, the other end of the floating swing rod is fixedly connected with the swing rod pressing roller, and the swing rod pressing roller can be abutted against and pressed on a product sleeved on the product shaft.
Further, the angle sensor obtains a first angle of the swing rod assembly when the swing rod pressing roller abuts against the product shaft, the angle sensor obtains a second angle of the swing rod assembly when the swing rod pressing roller abuts against a product sleeved on the product shaft, the product can rotate on the product shaft or keep static, and the outer diameter of the product can be unchanged or dynamically changed.
Further, the first angle is an angle between a state that the swing rod pressing roller is in abutting pressure on the product shaft and a preset state of the swing rod pressing roller, the second angle is an angle between a state that the swing rod pressing roller is in abutting pressure on a product sleeved on the product shaft and the preset state of the swing rod pressing roller, and the first angle and the second angle are obtained through angle digital quantity or analog quantity calculation.
Further, when the swing rod pressing roller abuts against the product shaft, the outer diameter of the product shaft is D1, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is a, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R1, the first angle is θ 1, and the outer diameter D1 of the product shaft is calculated according to the following formula:
R12＝A2+L2－2ALcosθ1；
D1＝2＊(R1－d/2)。
further, when the swing rod pressing roller abuts against and presses a product sleeved on the product shaft, the outer diameter of the product is D2, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is a, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R2, the second angle is θ 2, and the outer diameter D2 of the product is calculated according to the following formula:
R22＝A2+L2－2ALcosθ2；
D2＝2＊(R2－d/2)。
furthermore, a torsion spring is arranged on the swing rod shaft, so that the swing rod press roller rotates towards the direction of the product sleeved on the product shaft.
Further, the angle sensor is an angle resistor, an angle capacitance regulator, or an angle encoder.
Further, the cylindrical product outer diameter measuring device further comprises a controller connected with the angle sensor, wherein the controller acquires the first angle and the second angle of the swing rod assembly from the angle sensor and calculates the outer diameter of the product according to the first angle and the second angle.
In order to solve the technical problem mentioned above, an embodiment of the present invention further provides a method for measuring an outer diameter of a cylindrical product, which adopts the following technical solutions:
the method for measuring the outer diameter of the cylindrical product is applied to the device for measuring the outer diameter of the cylindrical product, and the device for measuring the outer diameter of the cylindrical product comprises a base, a product shaft, a swing rod assembly and an angle sensor; the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected to the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be pressed against a product sleeved on the product shaft, and the angle sensor detects an angle between a state that the swing rod assembly is pressed against the product sleeved on the product shaft and a preset state of the swing rod assembly so as to obtain the outer diameter of the product;
the method for measuring the outer diameter of the cylindrical product comprises the following steps:
sleeving a product on a product shaft;
detecting the angle between the state that the swing rod assembly is pressed against a product sleeved on the product shaft and the preset state of the swing rod assembly;
and obtaining the outer diameter of the product.
Compared with the prior art, the embodiment of the invention mainly has the following beneficial effects:
when the swing rod compression roller is pressed against a product sleeved on the product shaft, the swing rod compression roller is in a state of being pressed against the product and rotates by a second angle relative to the swing rod compression roller in a vertically downward state, the distance between the swing rod shaft and the center of the product shaft is obtained according to the second angle, the outer diameter of the swing rod compression roller, the distance between the swing rod shaft and the center of the product shaft, and the distance between the product shaft and the center of the swing rod compression roller, and finally the outer diameter of the product shaft is obtained. The device for measuring the outer diameter of the cylindrical product is not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also is suitable for the outer diameter detection of the cylindrical products such as adhesive tapes, metal foils and textiles. Compared with the technical scheme that the linear displacement sensor and the area laser sensor measure the outer diameter of the cylinder, the measuring efficiency is high, the cost is low, and the cost advantage is obvious under the condition of ensuring the precision.
Drawings
In order to illustrate the solution of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a front view of an outer diameter measuring apparatus for a cylindrical product according to an embodiment of the present invention;
FIG. 2 is an isometric view of an outer diameter measuring device for a cylindrical product in an embodiment of the invention;
FIG. 3 is a schematic view illustrating angle measurement of an initial state of the rocker assembly according to an embodiment of the present invention;
fig. 4 is a schematic angle measurement diagram of the end state of the swing link assembly in the embodiment of the present invention.
Description of reference numerals:
1. a product shaft; 2. producing a product; 3. an angle sensor; 4. a swing rod shaft; 5. a floating swing rod; 6. a swing rod press roll; 7. rolling the rotation direction; 8. and the pressing direction of the swing rod pressing roller is controlled.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the description and claims of the present invention and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the application provides a cylindrical product outer diameter measuring device which comprises a base, a product shaft, a swing rod assembly and an angle sensor, wherein the swing rod assembly is arranged on the base; the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected onto the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be abutted against and sleeved on a product on the product shaft, the angle sensor detects an angle between a state that the swing rod assembly is abutted against and sleeved on the product shaft and a preset state of the swing rod assembly, and therefore the outer diameter of the product is obtained.
The embodiment of the present application further provides a method for measuring an outer diameter of a cylindrical product, where the method for measuring an outer diameter of a cylindrical product is applied to the device for measuring an outer diameter of a cylindrical product, and the method for measuring an outer diameter of a cylindrical product includes the following steps:
sleeving a product on a product shaft;
detecting the angle between the state that the swing rod assembly is pressed against a product sleeved on the product shaft and the preset state of the swing rod assembly;
and obtaining the outer diameter of the product.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the relevant drawings.
Examples
A cylindrical product outer diameter measuring device is shown in figures 1 and 2 and comprises a base, a product shaft 1, a swing rod assembly and an angle sensor 3; product axle 1 and angle sensor 3 locate on the base, the pendulum rod subassembly rotate connect in on the base, pendulum rod subassembly one end with angle sensor 3 is connected, and the other end can support to press to overlap and establish on the epaxial product 2 of product, angle sensor 3 detects the pendulum rod subassembly is in to support to press to overlap and establish on product axle 1 state on the product 2 and the angle between the pendulum rod subassembly is in when the predetermined condition, in order to acquire the external diameter of product 2.
The device for measuring the outer diameter of the cylindrical product, provided by the embodiment of the invention, is not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also applicable to the outer diameter detection of the cylindrical products such as adhesive tapes, metal foils, textiles and the like. Compared with the technical scheme that the linear displacement sensor and the area laser sensor measure the outer diameter of the cylinder, the measuring efficiency is high, the cost is low, and the cost advantage is obvious under the condition of ensuring the precision.
The swing rod assembly comprises a swing rod shaft 4, a floating swing rod 5 and a swing rod pressing roller 6, the swing rod shaft 4 is rotatably connected with the angle sensor 3, one end of the floating swing rod 5 is fixedly connected to the swing rod shaft 4, the other end of the floating swing rod is fixedly connected with the swing rod pressing roller 6, and the swing rod pressing roller 6 can be abutted to and pressed on a product 2 sleeved on the product shaft 1. Since the floating swing link 5 is fixed to the swing link pressing roller 6, when the swing link pressing roller 6 rotates by a certain angle, the angle sensor 3 can detect the angle between the swing link shaft 4 and a predetermined state.
The angle sensor 3 acquires a first angle of the swing rod assembly when the swing rod pressing roller 6 abuts against the product shaft 1, and the angle sensor 3 acquires a second angle of the swing rod assembly when the swing rod pressing roller 6 abuts against the product 2 sleeved on the product shaft 1. The product 2 may be rotated or held stationary on the product shaft 1, and the outer diameter of the product 2 may be constant or dynamically varied. In the embodiment of the present invention, the product 2 is a rolled product 2, and the rolled product 2 can rotate on the product shaft 1 to form a rolling rotation direction 7.
The first angle is an angle between a state that the swing rod pressing roller 6 is in abutting contact with the product shaft 1 and a preset state of the swing rod pressing roller 6, and the second angle is an angle between a state that the swing rod pressing roller 6 is in abutting contact with the product 2 sleeved on the product shaft 1 and the preset state of the swing rod pressing roller 6.
In the embodiment of the present invention, the predetermined state may be that the swing link pressing roller 6 is in a vertically downward state, when the swing link pressing roller 6 is in a state of being pressed against the product shaft 1, an angle of rotation in the vertically downward state with respect to the swing link pressing roller 6 is a first angle, and when the swing link pressing roller 6 is in a state of being pressed against the product shaft 1, an angle of rotation in the vertically downward state with respect to the swing link pressing roller 6 is a second angle.
In other embodiments, the predetermined state may be a vertically upward state of the swing link pressing roller 6 or other states.
The first angle and the second angle are calculated by angle digital quantity or analog quantity. The angle sensor 3 is able to sense the measured angle and convert it into a usable output signal. The angle sensor 3 has a hole in it which can cooperate with the rocker shaft 4 of the present invention, and the angle sensor 3 counts once per rotation of the shaft through a certain angle when the angle sensor 3 is attached to the controller. When rotating in a predetermined direction, the count increases, when the direction of rotation is changed, the count decreases, the count is related to the initial position of the angle sensor 3, when the angle sensor 3 is initialized, its count value is set to 0, and it can be reset programmatically, if necessary. In the embodiment of the invention, the initial position of the angle sensor 3, namely the swing rod press roller 6, is in a vertical downward preset state.
With reference to fig. 3 and 4, when the swing link assembly is pressed against the product shaft 1 by the swing link pressing roller 6, an outer diameter of the product shaft 1 is D1, an outer diameter of the swing link pressing roller 6 is D, a distance between the swing link shaft 4 and a circle center of the product shaft 1 is a, a distance between the swing link shaft 4 and a circle center of the swing link pressing roller 6 is L, a distance between the product shaft 1 and a circle center of the swing link pressing roller 6 is R1, the first angle is θ 1, and an outer diameter D1 of the product shaft 1 is calculated by the following formula:
R12＝A2+L2－2ALcosθ1；
D1＝2＊(R1－d/2)。
when the swing rod pressing roller 6 abuts against and presses the product 2 sleeved on the product shaft 1, the outer diameter of the product 2 is D2, the outer diameter of the swing rod pressing roller 6 is D, the distance between the swing rod shaft 4 and the circle center of the product shaft 1 is A, the distance between the swing rod shaft 4 and the circle center of the swing rod pressing roller 6 is L, the distance between the product shaft 1 and the circle center of the swing rod pressing roller 6 is R2, the second angle is theta 2, and the outer diameter D2 of the product 2 is calculated according to the following formula:
R22＝A2+L2－2ALcosθ2；
D2＝2＊(R2－d/2)。
it should be noted that, during the measurement process, the initial state and the final state of the pendulum rod assembly can be measured. In the embodiment of the invention, the initial state of the swing rod assembly is a state that the swing rod press roller 6 is pressed against the product shaft 1, and the termination state of the swing rod assembly is a state that the swing rod press roller 6 is pressed against the product 2 sleeved on the product shaft 1. It will be appreciated that in the end state of the pendulum assembly, the product 2 may rotate on said product shaft 1 or remain stationary, and the outer diameter of the product 2 may be constant or dynamically varying. In the measurement of the initial state of the swing rod assembly, the swing rod compression roller 6 is pressed against the product shaft 1 and is rotated by a first angle relative to the swing rod compression roller 6 in a vertically downward state, and the distance between the center of the product shaft 1 and the center of the swing rod compression roller 6 is obtained according to the first angle, the outer diameter of the swing rod compression roller 6, the distance between the center of the product shaft 4 and the center of the product shaft 1, and the distance between the center of the swing rod shaft 4 and the center of the swing rod compression roller 6, so that the outer diameter of the product shaft 1 is finally obtained. The measured outer diameter of the product shaft 1 is compared with the predetermined outer diameter of the product shaft 1, and the measurement accuracy can be tested. And then measuring the termination state of the swing rod assembly. In the measurement of the termination state of the swing rod assembly, the swing rod pressing roller 6 is in a state of abutting against and pressing on the product 2 sleeved on the product shaft 1, and is rotated by a second angle relative to the swing rod pressing roller 6 in a vertically downward state, and the distance between the center of the product shaft 1 and the center of the swing rod shaft 4 is obtained according to the second angle, the outer diameter of the swing rod pressing roller 6, the distance between the center of the product shaft 4 and the center of the product shaft 1, and the distance between the center of the swing rod shaft 4 and the center of the swing rod pressing roller 6, so that the outer diameter of the product 2 is finally obtained.
And a torsion spring is arranged on the swing rod shaft 4, so that the swing rod press roller 6 rotates towards the direction of the product 2 sleeved on the product shaft 1 to form the pressing direction of the swing rod press roller 6. Under the various conditions that the product 2 rotates or keeps static and the outer diameter of the product 2 is unchanged or dynamically changes, the fit between the swing rod compression roller 6 and the product 2 in the measuring process is effectively ensured, and the measuring error is effectively reduced.
The angle sensor 3 is an angle resistor, an angle capacitance regulator or an angle encoder. Under the condition that the basic structure of the measuring device for the outer diameter of the cylindrical product is not changed, the angle sensors 3 with different precision grades can be selected.
The device for measuring the outer diameter of the cylindrical product further comprises a controller connected with the angle sensor 3, wherein the controller acquires the first angle and the second angle of the swing rod assembly from the angle sensor 3 and calculates the outer diameter of the product 2 according to the first angle and the second angle.
Specifically, when the swing rod pressing roller 6 abuts against and presses the product shaft 1, the outer diameter of the product shaft 1 is D1, the outer diameter of the swing rod pressing roller 6 is D, the distance between the swing rod shaft 4 and the center of the product shaft 1 is a, the distance between the swing rod shaft 4 and the center of the swing rod pressing roller 6 is L, the distance between the product shaft 1 and the center of the swing rod pressing roller 6 is R1, the first angle is θ 1, and the first angle is R12＝A2+L2-2 ALcos θ 1, R1, and then D1 ═ 2 h (R1-D/2), the outer diameter D1 of the product shaft 1.
When the swing rod pressing roller 6 abuts against and presses the product 2 sleeved on the product shaft 1, the outer diameter of the product 2 is D2, the outer diameter of the swing rod pressing roller 6 is D, the distance between the swing rod shaft 4 and the circle center of the product shaft 1 is A, the distance between the swing rod shaft 4 and the circle center of the swing rod pressing roller 6 is L, the distance between the product shaft 1 and the circle center of the swing rod pressing roller 6 is R2, the second angle is theta 2, and the second angle is R22＝A2+L2R2 from 2ALcos θ 2, and D2 from D2 ═ 2 h (R2-D/2) the outside diameter of product 2.
According to the device for measuring the outer diameter of the cylindrical product, provided by the embodiment of the invention, when the swing rod pressing roller 6 is pressed against the product 2 sleeved on the product shaft 1, the swing rod pressing roller 6 is in a state of pressing against the product 2 and rotates by a second angle relative to the swing rod pressing roller 6 in a vertically downward state, and according to the second angle, the outer diameter of the swing rod pressing roller 6, the distance between the swing rod shaft 4 and the circle center of the product shaft 1 and the distance between the product shaft 1 and the circle center of the swing rod pressing roller 6, the distance between the swing rod shaft 4 and the circle center of the swing rod pressing roller 6 is obtained, and finally the outer diameter of the product 2 is obtained. The device for measuring the outer diameter of the cylindrical product is not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also is suitable for the outer diameter detection of the cylindrical products such as adhesive tapes, metal foils and textiles. Compared with the technical scheme that the linear displacement sensor and the area laser sensor measure the outer diameter of the cylinder, the measuring efficiency is high, the cost is low, and the cost advantage is obvious under the condition of ensuring the precision.
In order to solve the technical problem mentioned above, an embodiment of the present invention further provides a method for measuring an outer diameter of a cylindrical product, which adopts the following technical solutions:
the method for measuring the outer diameter of the cylindrical product is applied to the device for measuring the outer diameter of the cylindrical product, and the device for measuring the outer diameter of the cylindrical product comprises a base, a product shaft, a swing rod assembly and an angle sensor; the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected to the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be pressed against a product sleeved on the product shaft, and the angle sensor detects an angle between a state that the swing rod assembly is pressed against the product sleeved on the product shaft and a preset state of the swing rod assembly so as to obtain the outer diameter of the product;
the method for measuring the outer diameter of the cylindrical product comprises the following steps:
sleeving a product on a product shaft;
detecting the angle between the state that the swing rod assembly is pressed against a product sleeved on the product shaft and the preset state of the swing rod assembly;
and obtaining the outer diameter of the product.
The swing rod assembly comprises a swing rod shaft, a floating swing rod and a swing rod pressing roller, the swing rod shaft is rotatably connected with the angle sensor, one end of the floating swing rod is fixedly connected to the swing rod shaft, the other end of the floating swing rod is fixedly connected with the swing rod pressing roller, and the swing rod pressing roller can be abutted and pressed on a product sleeved on the product shaft.
The angle sensor acquires a first angle of the oscillating bar component when the oscillating bar pressing roller abuts against and presses the product shaft, and acquires a second angle of the oscillating bar component when the oscillating bar pressing roller abuts against and presses the product sleeved on the product shaft.
The first angle is an angle between a state that the swing rod pressing roller is in abutting pressure on the product shaft and a preset state of the swing rod pressing roller, and the second angle is an angle between a state that the swing rod pressing roller is in abutting pressure on a product sleeved on the product shaft and the preset state of the swing rod pressing roller. The first angle and the second angle are calculated by angle digital quantity or analog quantity.
When the swing rod pressing roller is pressed on the product shaft, the outer diameter of the product shaft is D1, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is A, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R1, the first angle is theta 1, and the first angle is R12＝A2+L2R1 was obtained at-2 ALcos θ 1, and then the outer diameter D1 of the product shaft was obtained from D1 ═ 2 h (R1-D/2).
When the swing rod pressing roller abuts against and presses a product sleeved on the product shaft, the outer diameter of the product is D2, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is A, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R2, and the second swing rod assembly is arranged on the product shaft and is in contact with the center of the swing rod pressing rollerAngle θ 2, from R22＝A2+L2R2 from 2ALcos θ 2, and D2 from D2 ═ 2 h (R2-D/2) the outer diameter of the product.
According to the method for measuring the outer diameter of the cylindrical product, provided by the embodiment of the invention, when the swing rod pressing roller is pressed against the product sleeved on the product shaft, the swing rod pressing roller is in a state of pressing against the product and rotates by a second angle relative to the swing rod pressing roller in a vertically downward state, and the distance between the swing rod shaft and the circle center of the product shaft is obtained according to the second angle, the outer diameter of the swing rod pressing roller, the distance between the swing rod shaft and the circle center of the swing rod pressing roller and the distance between the product shaft and the circle center of the swing rod pressing roller, so that the outer diameter of the product shaft is finally obtained. The device for measuring the outer diameter of the cylindrical product is not only applied to the fields of lathe tool setting, dynamic size detection and the like in the manufacturing industry, but also is suitable for the outer diameter detection of the cylindrical products such as adhesive tapes, metal foils and textiles. Compared with the technical scheme that the linear displacement sensor and the area laser sensor measure the outer diameter of the cylinder, the measuring efficiency is high, the cost is low, and the cost advantage is obvious under the condition of ensuring the precision.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. 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 various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
Claims (10)
1. A device for measuring the outer diameter of a cylindrical product is characterized in that,
comprises a base, a product shaft, a swing rod component and an angle sensor;
the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected onto the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be abutted against and sleeved on a product on the product shaft, the angle sensor detects an angle between a state that the swing rod assembly is abutted against and sleeved on the product shaft and a preset state of the swing rod assembly, and therefore the outer diameter of the product is obtained.
2. The cylindrical product outer diameter measuring device according to claim 1,
the swing rod assembly comprises a swing rod shaft, a floating swing rod and a swing rod pressing roller, the swing rod shaft is rotatably connected with the angle sensor, one end of the floating swing rod is fixedly connected to the swing rod shaft, the other end of the floating swing rod is fixedly connected with the swing rod pressing roller, and the swing rod pressing roller can be abutted and pressed on a product sleeved on the product shaft.
3. The cylindrical product outer diameter measuring device according to claim 2,
the angle sensor obtains a first angle of the swing rod assembly when the swing rod pressing roller abuts against and presses the product shaft, the angle sensor obtains a second angle of the swing rod assembly when the swing rod pressing roller abuts against and presses the product sleeved on the product shaft, the product can rotate or keep static on the product shaft, and the outer diameter of the product can be unchanged or dynamically changed.
4. The cylindrical product outer diameter measuring device according to claim 3,
the first angle is an angle between a state that the swing rod pressing roller is in abutting pressure on the product shaft and a preset state of the swing rod pressing roller, the second angle is an angle between a state that the swing rod pressing roller is in abutting pressure on a product sleeved on the product shaft and the preset state of the swing rod pressing roller, and the first angle and the second angle are obtained through angle digital quantity or analog quantity calculation.
5. The cylindrical product outer diameter measuring device according to claim 4,
when the swing rod pressing roller is pressed on the product shaft, the outer diameter of the product shaft is D1, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is A, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R1, the first angle is theta 1, and the outer diameter D1 of the product shaft is calculated according to the following formula:
R12＝A2+L2－2ALcosθ1；
D1＝2＊(R1－d/2)。
6. the cylindrical product outer diameter measuring device according to claim 4,
when the swing rod pressing roller abuts against and presses a product sleeved on the product shaft, the outer diameter of the product is D2, the outer diameter of the swing rod pressing roller is D, the distance between the swing rod shaft and the center of the product shaft is A, the distance between the swing rod shaft and the center of the swing rod pressing roller is L, the distance between the product shaft and the center of the swing rod pressing roller is R2, the second angle is theta 2, and the outer diameter D2 of the product is calculated according to the following formula:
R22＝A2+L2－2ALcosθ2；
D2＝2＊(R2－d/2)。
7. the cylindrical product outer diameter measuring device according to claim 2,
and a torsion spring is arranged on the swing rod shaft, so that the swing rod compression roller rotates towards the direction of the product sleeved on the product shaft.
8. The cylindrical product outer diameter measuring device according to claim 1,
the angle sensor is an angle resistor adjuster, an angle capacitance adjuster or an angle encoder.
9. The cylindrical product outer diameter measuring device according to claim 3,
the device for measuring the outer diameter of the cylindrical product further comprises a controller connected with the angle sensor, wherein the controller acquires the first angle and the second angle of the swing rod assembly from the angle sensor and calculates the outer diameter of the product according to the first angle and the second angle.
10. The method for measuring the outer diameter of the cylindrical product is characterized by being applied to a device for measuring the outer diameter of the cylindrical product, wherein the device for measuring the outer diameter of the cylindrical product comprises a base, a product shaft, a swing rod assembly and an angle sensor; the product shaft and the angle sensor are arranged on the base, the swing rod assembly is rotatably connected to the base, one end of the swing rod assembly is connected with the angle sensor, the other end of the swing rod assembly can be pressed against a product sleeved on the product shaft, and the angle sensor detects an angle between a state that the swing rod assembly is pressed against the product sleeved on the product shaft and a preset state of the swing rod assembly so as to obtain the outer diameter of the product;
the method for measuring the outer diameter of the cylindrical product comprises the following steps:
sleeving a product on a product shaft;
detecting the angle between the state that the swing rod assembly is pressed against a product sleeved on the product shaft and the preset state of the swing rod assembly;
and obtaining the outer diameter of the product.
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| CN102506792A (en) * | 2011-10-25 | 2012-06-20 | 南京林业大学 | Method and device for measuring thickness of slab of medium density fiberboard |
| CN106441201A (en) * | 2016-09-27 | 2017-02-22 | 中南大学 | Roller crown measurement device |
| JP2019100841A (en) * | 2017-12-01 | 2019-06-24 | ニシム電子工業株式会社 | Tree diameter measurement device and measurement method |
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| JPH08122049A (en) * | 1994-10-25 | 1996-05-17 | Kyowa Kikai Seisakusho:Kk | Diameter measuring instrument |
| JPH1151635A (en) * | 1997-07-31 | 1999-02-26 | Hitachi Ltd | Method for measuring cylinder |
| JPH11160061A (en) * | 1997-11-28 | 1999-06-18 | Nisshin Steel Co Ltd | Method and apparatus for measuring outer diameter of traveling tubular body, columnar body and the like |
| US20110208476A1 (en) * | 2010-02-24 | 2011-08-25 | Francesco Braghiroli | Method and apparatus for determining geometrical dimensions of a wheel |
| CN102455177A (en) * | 2010-10-20 | 2012-05-16 | 徐州重型机械有限公司 | Wheeled crane and wheel turn angle measuring device thereof |
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