CN113686232B - Outer diameter measuring tool - Google Patents
Outer diameter measuring tool Download PDFInfo
- Publication number
- CN113686232B CN113686232B CN202110794269.1A CN202110794269A CN113686232B CN 113686232 B CN113686232 B CN 113686232B CN 202110794269 A CN202110794269 A CN 202110794269A CN 113686232 B CN113686232 B CN 113686232B
- Authority
- CN
- China
- Prior art keywords
- hole
- movable
- ruler
- axis direction
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
-
- 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
- G01B21/10—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 diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to an outer diameter measuring tool, which comprises a fixed ruler, a movable ruler and a measuring component, wherein the movable ruler comprises a first movable ruler and a second movable ruler, the first movable ruler and the second movable ruler are respectively connected with the fixed ruler, and the first movable ruler is arranged along the X-axis direction and can generate a first displacement amount in the X-axis direction relative to the fixed ruler; the second movable ruler is arranged along the Y-axis direction, and can generate a second displacement in the Y-axis direction relative to the fixed ruler, and the measuring component is arranged on the fixed ruler and used for measuring the first displacement and the second displacement. When the measuring device is used, when the first displacement is equal to the outer diameter of the object to be measured in the X-axis direction and the second displacement is equal to the outer diameter of the object to be measured in the Y-axis direction, the first displacement and the second displacement are recorded by the measuring component at the same time, the outer diameters of the object to be measured in the X-axis direction and the Y-axis direction can be measured at the same time, the measuring directions are determined to be the numerical values in the X-axis direction and the Y-axis direction, and the measuring accuracy and the measuring efficiency are high.
Description
Technical Field
The invention relates to the technical field of outer diameter measuring tools, in particular to an outer diameter measuring tool.
Background
When the high-voltage cable joint is installed and manufactured, according to the process requirements, after the main insulating outer wall of the cable is polished by abrasive paper, whether the roundness of the outer diameter of the main insulating outer wall meets the requirements or not needs to be detected.
In the prior art, the detection work usually needs two persons to cooperate, data in the X-axis direction and the Y-axis direction perpendicular to the X-axis direction of the same point are respectively measured by using a vernier caliper, then manual recording is carried out, at least three points with certain intervals need to be selected, and finally the deviation of the data in the X, Y axis direction of the three points is compared, so that the cable main insulation outer diameter roundness is obtained.
When the prior art adopts a vernier caliper to measure the cable outer diameter roundness, the outer diameter data in the X-axis and Y-axis directions can be measured only in sequence, the verticality of the two measurement directions cannot be ensured in the measurement process, and the measurement accuracy and efficiency are low.
Disclosure of Invention
Based on this, it is necessary to provide an outer diameter measuring tool to solve the problems of low measurement accuracy and efficiency in the prior art.
An outer diameter measuring tool capable of simultaneously measuring outer diameters in X-axis and Y-axis directions of an object to be measured, comprising:
sizing;
the movable ruler comprises a first movable ruler and a second movable ruler, the first movable ruler and the second movable ruler are respectively connected with the fixed ruler, the length direction of the first movable ruler is arranged along the X-axis direction, the first movable ruler can generate a first displacement amount in the X-axis direction relative to the fixed ruler, and the first displacement amount is used for reflecting the outer diameter of an object to be measured in the X-axis direction; the length direction of the second movable ruler is arranged along the Y-axis direction, the second movable ruler can generate a second displacement amount relative to the fixed ruler in the Y-axis direction, and the second displacement amount is used for reflecting the outer diameter of the object to be measured in the Y-axis direction;
and the measuring component is arranged on the fixed ruler and/or the movable ruler and is used for measuring the first displacement and the second displacement.
In one embodiment, a first through hole and a second through hole are formed in the fixed ruler, the depth direction of the first through hole is formed along the X-axis direction, the depth direction of the second through hole is formed along the Y-axis direction, the first through hole is used for installing the first movable ruler, and the second through hole is used for installing the second movable ruler; the distance between the lower end of the hole wall of the first through hole and the upper end of the hole wall of the second through hole is larger than or equal to zero.
In one embodiment, the first movable rule comprises:
the first straight rod penetrates through the first through hole and can move in the first through hole along the X-axis direction;
the first moving measuring claw is vertically arranged at one end of the first straight rod, which is far away from the first through hole;
the second movable rule includes:
the second straight rod penetrates through the second through hole and can move in the second through hole along the Y-axis direction;
the second dynamic measurement claw is vertically arranged at one end of the second straight rod far away from the second through hole,
the first straight rod, the first dynamic measurement claw, the second dynamic measurement claw and the second straight rod can surround to form a rectangular structure with a hollow interior.
In one embodiment, the outer diameter measuring tool further comprises:
one end of the first fixed measuring claw is connected with the fixed length, the first fixed measuring claw comprises a first retaining edge, the length direction of the first retaining edge is arranged along the X-axis direction, and the second movable measuring claw can be attached to the first retaining edge by moving the second straight rod;
one end of the second fixed measuring claw is connected with the fixed length, the second fixed measuring claw comprises a second flange, the length direction of the second flange is arranged along the Y-axis direction, and the first straight rod can enable the first movable measuring claw to be attached to the second flange.
In one embodiment, at least a first threaded hole and a second threaded hole are formed in the fixed length, the first threaded hole is communicated with the first through hole, and the second threaded hole is communicated with the second through hole;
the outer diameter measuring tool further comprises a first bolt and a second bolt, wherein the first bolt penetrates through the hole wall of the first through hole and is used for being abutted against the first movable ruler so as to lock the first movable ruler; and the second bolt penetrates through the hole wall of the second through hole and is used for being abutted against the second movable ruler so as to lock the second movable ruler.
In one embodiment, the measurement assembly includes a measurement portion comprising:
the capacitive grating sensor comprises a first metal grating pole piece and a second metal grating pole piece, wherein the first metal grating pole piece is arranged in the fixed ruler, and the second metal grating pole piece is arranged on the movable ruler;
the circuit board is arranged in the fixed length and is electrically connected with the capacitive grating sensor;
and the display screen is arranged on the surface of the fixed length and is electrically connected with the circuit board.
In one embodiment, the measuring assembly further comprises scale marks, and the scale marks are arranged on both the first movable ruler and the second movable ruler.
In one embodiment, the outer diameter measuring tool further comprises:
the hanging rod is used for hanging the fixed length;
and at least two clamps are arranged at two ends of the hanging rod respectively and used for supporting the hanging rod.
In one embodiment, the hanging rod is provided with scale marks.
In one embodiment, the clamp is a caliper, the caliper comprises a first clamping rod, a second clamping rod and a spring, the first clamping rod and the second clamping rod are hinged to each other to form an X-shaped structure, and the spring is arranged on one side of the first clamping rod and one side of the second clamping rod, which are used for clamping an object to be measured.
Foretell external diameter measuring tool, through setting up scale and movable ruler, the movable ruler includes first movable ruler and second movable ruler, when using, keep the scale motionless, through removing first movable ruler and second movable ruler, thereby make first movable ruler produce first displacement for the scale, the second movable ruler produces second displacement for the scale, when actual test, when first displacement equals the external diameter of determinand in the X axle side, when second displacement equals the external diameter of determinand in the Y axle side, simultaneously take notes first displacement and second displacement through measuring component, can measure the external diameter of determinand in X axle and Y axle side simultaneously, and measuring direction is fixed to the numerical value in X axle and Y axle side, measure rate of accuracy and efficient.
Drawings
FIG. 1 is a schematic view of an embodiment of an outer diameter measurement tool;
FIG. 2 is an exploded view of FIG. 1;
reference numerals: 100-sizing; 110 — a first via; 120-a second via; 130-first fixed measuring jaw; 131-a first rib; 140-a second assay jaw; 141-a first rib; 150-a display screen; 151-on/off key; 152-confirmation key; 153-return to zero key; 170-first threaded hole; 181-first bolt; 182-a second bolt; 190-hanging ears;
200-moving ruler; 210-a first movable rule; 211-a first straight bar; 212-a first motion measurement jaw; 220-a second movable ruler; 221-a second straight rod; 222-a second motion measurement jaw;
300-a caliper; 310-a first clamping bar; 320-a second clamping bar; 330-a spring;
400-hanging the rod; 410-middle section; 420-head and tail sections; 430-plug cover.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating an outer diameter measuring tool according to an embodiment of the present invention, and an embodiment of the present invention provides an outer diameter measuring tool capable of simultaneously measuring outer diameters of an object to be measured in X-axis and Y-axis directions, including: the movable ruler 200 comprises a first movable ruler 210 and a second movable ruler 220, the first movable ruler 210 and the second movable ruler 220 are respectively connected with the fixed ruler 100, the length direction of the first movable ruler 210 is arranged along the X-axis direction, the first movable ruler 210 can generate a first displacement amount in the X-axis direction relative to the fixed ruler 100, and the first displacement amount is used for reflecting the outer diameter of an object to be measured in the X-axis direction; the length direction of the second movable ruler 220 is arranged along the Y-axis direction, and the second movable ruler 220 can generate a second displacement amount in the Y-axis direction relative to the fixed ruler 100, and the second displacement amount is used for reflecting the outer diameter of the object to be measured in the Y-axis direction. The measuring component is arranged on the fixed ruler 100 and/or the movable ruler and is used for measuring the first displacement and the second displacement.
It should be noted that the object to be measured can be any object that needs to detect the roundness of the outer diameter, such as a high-voltage cable joint. In use, the fixed scale 100 is held stationary and the first movable scale 210 and the second movable scale 220 are moved so that the first movable scale 210 is displaced in the X-axis direction by a first displacement amount relative to the fixed scale 100 and the second movable scale 220 is displaced in the Y-axis direction by a second displacement amount relative to the fixed scale 100.
During actual testing, the high-voltage cable connector is provided with a first end and a second end along the radial direction and the X-axis direction, and when the end part of the first movable ruler 210 far away from the fixed ruler 100 moves from the position aligned with the first end to the position aligned with the second end, the first displacement is equal to the outer diameter of an object to be tested in the X-axis direction; the high-voltage cable joint has third end and fourth end along radial and along Y axle direction, when the tip that the second movable ruler 220 kept away from scale 100 moved to the position with fourth end alignment from the position of aligning with the third end, the second displacement equals the external diameter of determinand in Y axle direction promptly, namely through removing first movable ruler 210 and second movable ruler 220 simultaneously, and measure first displacement volume and second displacement volume simultaneously through the measuring component, can measure the external diameter of determinand in X axle and Y axle direction simultaneously, and the measuring direction is X axle and Y axle direction respectively, measurement accuracy and efficient.
Specifically, the measuring component may be a manual measuring meter, or may be a digital display measuring instrument provided with a linear displacement sensor, a magnetostrictive displacement sensor, a laser displacement sensor, a resistance-type displacement sensor, an inductance-type displacement sensor, and the like.
With reference to fig. 2, in some embodiments, a first through hole 110 and a second through hole 120 are formed in the fixed ruler 100, a depth direction of the first through hole 110 is formed along an X-axis direction, a depth direction of the second through hole 120 is formed along a Y-axis direction, the first through hole 110 is used for mounting the first movable ruler 210, and the second through hole 120 is used for mounting the second movable ruler 220; the distance between the lower end of the hole wall of the first through hole 110 and the upper end of the hole wall of the second through hole 120 is greater than or equal to zero.
In order to fix the first movable ruler 210 and the second movable ruler 220 and record the relative displacement between the first movable ruler 210 and the second movable ruler 220 and the fixed ruler 100, a first through hole 110 and a second through hole 120 are formed in the fixed ruler 100 and are perpendicular to each other, the first movable ruler 210 can move along the depth direction of the first through hole 110, and the second movable ruler 220 moves along the depth direction of the second through hole 120. In order to prevent the first movable scale 210 and the second movable scale 220 from interfering with each other during the movement, the first through hole 110 and the second through hole 120 are disposed to be staggered in the Z-axis direction.
Specifically, the distance between the lower end of the hole wall of the first through hole 110 and the upper end of the hole wall of the second through hole 120 is greater than or equal to zero, when the distance between the lower end of the hole wall of the first through hole 110 and the upper end of the hole wall of the second through hole 120 is equal to zero, the first through hole 110 is communicated with the second through hole 120, and when the first movable ruler 210 and the second movable ruler 220 are inserted into the fixed ruler 100 at the same time, the first movable ruler 210 and the second movable ruler 220 are tangent but do not interfere with each other; when the distance between the lower end of the hole wall of the first through hole 110 and the upper end of the hole wall of the second through hole 120 is greater than zero, an interlayer is further arranged between the first through hole 110 and the second through hole 120, the interlayer is used for spacing the first through hole 110 and the second through hole 120 apart, when the first movable ruler 210 and the second movable ruler 220 are inserted into the fixed ruler 100 at the same time, the first movable ruler 210 and the second movable ruler 220 move in respective through holes without mutual interference, the arrangement of the first through hole 110 and the second through hole 120 can improve the compactness of the measuring tool, and the stability is good.
In some embodiments, the fixed length defines at least a first threaded aperture 170 and a second threaded aperture (not labeled), the first threaded aperture 170 being in communication with the first through-hole 110, the second threaded aperture being in communication with the second through-hole 120; the outer diameter measuring tool further comprises a first bolt 181 and a second bolt 182, wherein the first bolt 181 penetrates through the hole wall of the first through hole 110 and is used for abutting against the first movable ruler 210 so as to lock the first movable ruler 210; the second bolt 182 passes through the hole wall of the second through hole 120 for abutting against the second movable ruler 220, so as to lock the second movable ruler 220.
Specifically, the fixed scale 100 may be in various shapes such as a circle, a rectangle, a triangle, etc., in this embodiment, the rectangle is taken as an example, the first through hole 110 is a rectangular through hole, the first movable scale 210 is also in a rectangle matched with the first through hole 110, the first threaded hole 170 penetrates through the side perpendicular to the side wall of the first through hole 110, one end of the first threaded hole 170 is communicated with the outside, the other end is communicated with the first through hole 110, and the first bolt 181 can be abutted to the first movable scale 210 by screwing the first bolt 181 matched with the first threaded hole, so as to fix the first movable scale 210. According to the same mode of locking first movable ruler 210, also can fix second movable ruler 220 through second bolt 182, when measuring each time, first movable ruler 210 and second movable ruler 220 can be fixed, make things convenient for staff's reading.
In some embodiments, the first movable scale 210 comprises a first straight bar 211 and a first movable measuring jaw 212; the first straight bar 211 is arranged in the first through hole 110 in a penetrating way and can move in the first through hole 110 along the X-axis direction; the first dynamic measurement jaw 212 is vertically arranged at one end of the first straight rod 211 far away from the first through hole 110; the second movable ruler 220 comprises a second straight rod 221 and a second movable measuring claw 222, wherein the second straight rod 221 is arranged in the second through hole 120 in a penetrating mode and can move in the second through hole 120 along the Y-axis direction; the second movable measuring jaw 222 is vertically arranged at one end of the second straight rod 221 far from the second through hole 120, and the first straight rod 211, the first movable measuring jaw 212, the second movable measuring jaw 222 and the second straight rod 221 can enclose a rectangular structure with a hollow interior.
Specifically, the first movable measuring jaw 212 and the second movable measuring jaw 222 may be in a right-angled triangle structure, one right-angled side of the first movable measuring jaw 212 is attached to the first straight rod 211, and the other right-angled side of the first movable measuring jaw 212 is used as a first side of the rectangular structure; similarly, one right-angle side of the second movable measuring jaw 222 is attached to the second straight rod 221, the other right-angle side of the second movable measuring jaw 222 serves as a second side of the rectangular structure, the first side and the second side are two adjacent sides, the first straight rod 211 can serve as a third side of the rectangular structure, and the second straight rod 221 can serve as a fourth side of the rectangular structure, so that the first straight rod 211, the first movable measuring jaw 212, the second straight rod 221 and the second movable measuring jaw 222 can enclose a regular quadrilateral structure with a hollow interior. During measurement, the first straight rod 211 and the second straight rod 221 can be moved respectively, so that the first movable measuring claw 212 and the second movable measuring claw 222 are driven to move, namely, the first straight rod 211 and the second movable measuring claw 222 can be tightly attached to an object to be measured in the Y-axis direction, the second straight rod 221 and the first movable measuring claw 212 are tightly attached to the object to be measured in the X-axis direction, and then the outer diameters of the object to be measured in the X-axis direction and the Y-axis direction can be obtained by reading the first displacement generated by the first straight rod 211 and the fixed ruler 100 and the second displacement generated by the second straight rod 221 and the fixed ruler 100, so that the roundness of the object to be measured can be judged.
In some embodiments, the measurement assembly includes a measurement portion including a capacitive sensor including a first metal gate piece disposed within the fixed scale 100 and a second metal gate piece disposed on the movable scale 200, a circuit board, and a display screen 150; the circuit board is arranged in the fixed length 100 and is electrically connected with the capacitive grating sensor; the display 150 is disposed on the surface of the scale 100, and the display 150 is electrically connected to the circuit board.
Specifically, the fixed scale 100 is further provided with a battery for supplying power to the measuring part, the first metal grid pieces at least comprise two pieces and are respectively arranged on the side wall of the first through hole 110 and the side wall of the second through hole 120 in the fixed scale 100, the second metal grid pieces at least comprise two pieces and are respectively arranged on the first straight rod 211 and the second straight rod 221 of the movable scale 200, the second metal grid piece on the first straight rod 211 corresponds to the first metal grid piece on the side wall of the first through hole 110 in position, and a capacitor can be generated between the first metal grid piece and the second metal grid piece; the second metal grid electrode piece on the second straight rod 221 corresponds to the first metal grid electrode piece on the sidewall of the second through hole 120, and a capacitor can be generated between the second metal grid electrode piece and the first metal grid electrode piece, and after the conversion processing of the circuit on the circuit board, a displacement value can be output on the display screen 150. In addition, the fixed scale 100 is further provided with a power switch key 151, an X-axis and Y-axis arbitrary position zero-returning key 153 and a measurement confirmation key 152, and when the confirmation key 152 is pressed, the measuring instrument automatically calculates the data difference of the measuring point in the X-axis and Y-axis directions, and simultaneously displays the X-direction numerical value, the Y-direction numerical value and the data difference of the X-axis and Y-axis directions of the measuring point on the LED display 150.
In some embodiments, the measuring assembly further comprises scale marks, and the scale marks are arranged on both the first movable ruler and the second movable ruler.
In practical use, the first straight rod 211 and the second straight rod 221 are provided with scale marks along the length direction, the scale marks are equivalent to a manual measuring meter and can be used in combination with the measuring part, and when a capacitive grating sensor or a display screen 150 in the measuring part fails, the outer diameters of the object to be measured in the X-axis direction and the Y-axis direction can be measured and read through the manual measuring meter; alternatively, the manual gauge may be used alone to perform the measurement.
Specifically, when the distance between the second straight bar 221 and the first movable measuring jaw 212 is the smallest in the X-axis direction, the position of the first movable ruler 210 at this time is defined as the initial position in the X-axis direction, and the scale mark on the first straight bar 211 at this time is recorded. Similarly, when the distance between the first straight bar 211 and the second movable measuring jaw 222 is the smallest along the Y-axis direction, the position of the second movable scale 220 at this time is defined as the initial position in the Y-axis direction, and the scale mark on the second straight bar 221 at this time is recorded. Then, by moving the first straight rod 211 and the second straight rod 221, when the first straight rod 211, the second movable measuring claw 222, the second straight rod 221 and the first movable measuring claw 212 are respectively attached to the object to be measured in the Y-axis direction and the X-axis direction, the scale mark on the first straight rod 211 at the initial position is subtracted from the scale mark on the first straight rod 211 at the time of attachment, and the obtained result is the outer diameter of the object to be measured in the X-axis direction; the scale mark on the second straight rod 221 at the initial position is subtracted from the scale mark on the second straight rod 221 when the scale marks are attached to each other, so that the outer diameter of the object to be measured in the Y-axis direction is obtained.
In some embodiments, the outer diameter measuring tool further includes a first fixed measuring jaw 130 and a second fixed measuring jaw 140, one end of the first fixed measuring jaw 130 is connected to the fixed scale 100, the first fixed measuring jaw 130 includes a first rib 131, a length direction of the first rib 131 is arranged along the X-axis direction, and the second straight rod 221 is moved to enable the second movable measuring jaw 222 to be attached to the first rib 131; one end of the second fixed measuring jaw 140 is connected to the fixed scale 100, the second fixed measuring jaw 140 includes a second rib 141, the length direction of the second rib 141 is arranged along the Y-axis direction, and the first straight bar 211 is moved to enable the first movable measuring jaw 212 to be attached to the second rib 141.
Specifically, since the first straight bar 211 is disposed in the first through hole 110 and the second straight bar 221 is disposed in the second through hole 120, when the first straight bar 211 is completely retracted to the fixed scale 100, a gap exists between the first movable measuring jaw 212 and the second straight bar 221. Therefore, if the first straight bar 211 is completely retracted to the rear end of the scale 100 as the initial position during manual measurement, the initial position cannot be regarded as the zero point, and a gap for subtracting the initial position from the test value is also required during actual calculation, so that direct reading is not facilitated, and the same problem exists between the second movable measuring jaw 222 and the first straight bar 211. Therefore, in order to eliminate the gap between the initial positions, the first fixed measuring jaw 130 and the second fixed measuring jaw 140 are arranged on the fixed scale 100, and at the initial position, the first rib 131 of the first fixed measuring jaw 130 can be attached to the second movable measuring jaw 222, and the second rib 141 of the second fixed measuring jaw 140 can be attached to the first movable measuring jaw 212, that is, the initial position is a zero point, which facilitates direct reading during manual measurement.
In some embodiments, the outer diameter measuring tool further comprises a hanging rod 400 and a clamp, the hanging rod 400 is used for hanging the set length 100; the number of the clamps is at least two, and the clamps are respectively arranged at two ends of the hanging rod 400 and used for supporting the hanging rod 400 on an object to be measured.
Specifically, a hanging lug 190 is arranged at one end of the fixed length 100, which is far away from the first fixed measuring jaw 130 and the second fixed measuring jaw 140, the hanging lug 190 is of a circular ring structure, and the hanging rod 400 can penetrate through the hanging lug 190, so as to hang the fixed length 100.
The hanging rod 400 comprises a rod body section 410 and an end-to-end section 420, the outer diameter of the end-to-end section 420 is smaller than that of the rod body section 410, so that a clamp can penetrate through the end-to-end section 420 and cannot penetrate through the rod body section 410, and after the end-to-end section 420 penetrates through the clamp, a plug cover 430 can be installed at one end, far away from the rod body section 410, of the end-to-end section 420 to prevent the clamp from falling off. Optionally, the hanging rod 400 is made of metal, and is not easy to damage, and meanwhile, in order to reduce the weight of the measuring tool, the metal rod is a hollow rod.
During actual measurement, in order to guarantee the uniformity of the roundness of the object to be measured, a plurality of measuring points need to be selected on the object to be measured, the outer diameters of the measuring points in the X-axis direction and the Y-axis direction are measured simultaneously, each point needs to be kept in one direction in the X-axis direction, the outer diameters of the measuring points in the Y-axis direction are in one direction, and therefore the fixed ruler 100 is suspended through the hanging rod 400, so that the fixed ruler 100 and the movable ruler 200 are directionally measured, one direction is guaranteed in the X-axis direction of all the measuring points, and one direction is guaranteed in the Y-axis direction.
In some embodiments, in order to conveniently and uniformly set a plurality of measuring points on the hanging rod 400 and ensure the accuracy of the measurement, the hanging rod 400 is provided with scale marks.
In some embodiments, the clamp is a clamp 300, the clamp 300 includes a first clamping bar 310, a second clamping bar 320, and a spring 330, the first clamping bar 310 and the second clamping bar 320 are hinged to each other to form an X-shaped structure, and the spring 330 is disposed on one side of the first clamping bar 310 and the second clamping bar 320 for clamping the object.
Taking the roundness of the outer diameter of the main insulation of the measuring cable as an example, when the measuring cable is used, the first movable measuring claw 212 is moved to be attached to the first flange 131 of the first fixed measuring claw 130, the second movable measuring claw 222 is moved to be attached to the second flange 141 of the second fixed measuring claw 140, then the power switch 151 on the fixed scale 100 is turned on, the zero-returning keys 153 in the X-axis direction and the Y-axis direction are pressed, and at this time, the displacement values in the X-axis direction and the Y-axis direction are both zero;
stretching the first movable ruler 210 and the second movable ruler 220 to enable the first fixed measuring jaw 130, the first movable measuring jaw 212, the second movable measuring jaw 222 and the second fixed measuring jaw 140 to surround the main insulating outer wall of the cable to be measured;
clamping two calipers 300 on the main insulating outer wall of the cable, wherein the clamping heights of the two calipers 300 are kept consistent, so that the hanging rod 400 is parallel to the cable;
moving the fixed ruler 100 to the position of the scale mark of the first point to be measured on the hanging rod 400 along the hanging rod 400, adjusting the angle of the fixed ruler 100, and contracting the first movable ruler 210 and the second movable ruler 220 to ensure that the first fixed measuring jaw 130, the first movable measuring jaw 212, the second movable measuring jaw 222 and the second fixed measuring jaw 140 are respectively tangent to the main insulating outer wall of the cable, so that the data of the main insulating outer wall of the cable at the scale mark point in the X-axis direction and the Y-axis direction can be measured;
pressing the enter key 152 on the scale 100, the circuit module in the scale 100 will automatically calculate the difference between the outer diameters of the cable main insulation outer wall at the scale mark point in the X-axis and Y-axis directions according to the preset software program, and then simultaneously display the data of the outer diameters of the cable main insulation outer wall at the scale mark point in the X-axis and Y-axis directions and the difference between the X-axis and Y-axis directions on the display screen 150;
the fixed scale 100 is moved to the next graduation line point on the hanging rod 400, the next graduation line point is measured repeatedly, and when the fixed scale moves, in order to avoid the measuring claw scratching the main insulating outer wall of the cable, the first movable scale 210 and the second movable scale 220 can be pulled open, so that the fixed scale 100 is moved to the next measuring point after the measuring claw is separated from the main insulating outer wall of the cable.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides an external diameter measuring tool which characterized in that can measure the external diameter in X axle and the Y axle direction of determinand simultaneously, includes:
sizing;
the movable ruler comprises a first movable ruler and a second movable ruler, the first movable ruler and the second movable ruler are respectively connected with the fixed ruler, the length direction of the first movable ruler is arranged along the X-axis direction, the first movable ruler can generate a first displacement amount in the X-axis direction relative to the fixed ruler, and the first displacement amount is used for reflecting the outer diameter of an object to be measured in the X-axis direction; the length direction of the second movable ruler is arranged along the Y-axis direction, the second movable ruler can generate a second displacement amount relative to the fixed ruler in the Y-axis direction, and the second displacement amount is used for reflecting the outer diameter of the object to be measured in the Y-axis direction;
the measuring component is arranged on the fixed ruler and/or the movable ruler and is used for measuring the first displacement and the second displacement;
the fixed ruler is provided with a first through hole and a second through hole, the depth direction of the first through hole is arranged along the X-axis direction, the depth direction of the second through hole is arranged along the Y-axis direction, the first through hole is used for installing the first movable ruler, and the second through hole is used for installing the second movable ruler; the distance between the lower end of the hole wall of the first through hole and the upper end of the hole wall of the second through hole is larger than or equal to zero.
2. The outer diameter measurement tool of claim 1,
the first movable rule includes:
the first straight rod penetrates through the first through hole and can move in the first through hole along the X-axis direction;
the first movable measuring claw is vertically arranged at one end of the first straight rod, which is far away from the first through hole;
the second movable rule includes:
the second straight rod penetrates through the second through hole and can move in the second through hole along the Y-axis direction;
the second dynamic measurement claw is vertically arranged at one end of the second straight rod far away from the second through hole,
the first straight rod, the first dynamic measurement claw, the second dynamic measurement claw and the second straight rod can surround to form a rectangular structure with a hollow interior.
3. The outer diameter measurement tool of claim 2, further comprising:
one end of the first fixed measuring claw is connected with the fixed length, the first fixed measuring claw is provided with a first retaining edge, the length direction of the first retaining edge is arranged along the X-axis direction, and the second movable measuring claw can be attached to the first retaining edge by moving the second straight rod;
one end of the second fixed measuring claw is connected with the fixed length, the second fixed measuring claw is provided with a second flange, the length direction of the second flange is arranged along the Y-axis direction, and the first straight rod can enable the first movable measuring claw to be attached to the second flange.
4. The outer diameter measuring tool according to claim 1, wherein the scale is provided with at least a first threaded hole and a second threaded hole, the first threaded hole is communicated with the first through hole, and the second threaded hole is communicated with the second through hole;
the outer diameter measuring tool further comprises a first bolt and a second bolt, and the first bolt penetrates through the hole wall of the first through hole and is used for being abutted to the first movable ruler so as to lock the first movable ruler; and the second bolt penetrates through the hole wall of the second through hole and is used for being abutted to the second movable ruler so as to lock the second movable ruler.
5. The outer diameter measurement tool of claim 1, wherein the measurement assembly includes a measurement portion comprising:
the capacitive grating sensor comprises a first metal grating pole piece and a second metal grating pole piece, wherein the first metal grating pole piece is arranged in the fixed ruler, and the second metal grating pole piece is arranged on the movable ruler;
the circuit board is arranged in the fixed length and is electrically connected with the capacitive grating sensor;
and the display screen is arranged on the surface of the fixed length and is electrically connected with the circuit board.
6. The outer diameter measuring tool of claim 1, wherein the measuring assembly includes scale marks, the scale marks being disposed on both the first and second movable rulers.
7. The outer diameter measurement tool of claim 1, further comprising:
the hanging rod is used for hanging the fixed length;
and at least two clamps are arranged at two ends of the hanging rod respectively and used for supporting the hanging rod.
8. The outer diameter measuring tool of claim 7, wherein the hanging rod is provided with scale marks.
9. The outer diameter measuring tool as claimed in claim 7, wherein the clamp is a caliper, the caliper includes a first clamping bar, a second clamping bar and a spring, the first clamping bar and the second clamping bar are hinged to each other to form an X-shaped structure, and the spring is disposed on one side of the first clamping bar and the second clamping bar for clamping the object to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794269.1A CN113686232B (en) | 2021-07-14 | 2021-07-14 | Outer diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794269.1A CN113686232B (en) | 2021-07-14 | 2021-07-14 | Outer diameter measuring tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113686232A CN113686232A (en) | 2021-11-23 |
| CN113686232B true CN113686232B (en) | 2023-01-24 |
Family
ID=78576995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110794269.1A Active CN113686232B (en) | 2021-07-14 | 2021-07-14 | Outer diameter measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113686232B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202048882U (en) * | 2011-05-09 | 2011-11-23 | 湖北省三胜工程机械有限公司 | Special digital display calipers for floating seal chamber |
| CN203651280U (en) * | 2013-12-28 | 2014-06-18 | 徐延超 | Teaching ruler |
| KR101415912B1 (en) * | 2013-04-30 | 2014-07-14 | 주식회사 부경 | Apparatus for measuring inside and outside diameter |
| CN204881427U (en) * | 2015-05-12 | 2015-12-16 | 浙江师范大学 | Size measurement device |
| CN205102741U (en) * | 2015-05-18 | 2016-03-23 | 四川农业大学 | Thick measuring caliper of stem of plant |
| CN206803916U (en) * | 2017-04-26 | 2017-12-26 | 苏交科集团股份有限公司 | A kind of easy detection equipment of scaffold shape deviation |
-
2021
- 2021-07-14 CN CN202110794269.1A patent/CN113686232B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202048882U (en) * | 2011-05-09 | 2011-11-23 | 湖北省三胜工程机械有限公司 | Special digital display calipers for floating seal chamber |
| KR101415912B1 (en) * | 2013-04-30 | 2014-07-14 | 주식회사 부경 | Apparatus for measuring inside and outside diameter |
| CN203651280U (en) * | 2013-12-28 | 2014-06-18 | 徐延超 | Teaching ruler |
| CN204881427U (en) * | 2015-05-12 | 2015-12-16 | 浙江师范大学 | Size measurement device |
| CN205102741U (en) * | 2015-05-18 | 2016-03-23 | 四川农业大学 | Thick measuring caliper of stem of plant |
| CN206803916U (en) * | 2017-04-26 | 2017-12-26 | 苏交科集团股份有限公司 | A kind of easy detection equipment of scaffold shape deviation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113686232A (en) | 2021-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202158818U (en) | Simple and convenient multipurpose detection platform | |
| CN204881427U (en) | Size measurement device | |
| CN109211055A (en) | A kind of combination instrument cubing | |
| CN211085078U (en) | Ruler for detecting quality of constructional engineering | |
| CN113686232B (en) | Outer diameter measuring tool | |
| CN102759322A (en) | Testing device for checking verticality of workpieces | |
| CN211121016U (en) | Axial dimension qualification degree testing fixture for crankshaft | |
| CN111551099A (en) | Caliper system for measuring contour dimension of bucket tooth | |
| CN107153183B (en) | Vehicle-mounted laser range finder | |
| CN204018382U (en) | Testing apparatus for verticality installed by memorial archway | |
| CN203586993U (en) | spatial positioning device | |
| CN203964833U (en) | A kind of annular corrugated inner diameter gauge | |
| CN205561726U (en) | Leading truck of keeping in inspection tool | |
| CN216081202U (en) | External micrometer with protective structure for detecting part size | |
| CN213688308U (en) | Engineering measuring device | |
| CN214010163U (en) | Special measuring device for guaranteeing residual deformation of load test by bolts | |
| CN209927045U (en) | Gearbox center height gauge | |
| CN211060806U (en) | Verticality measuring device | |
| CN203824467U (en) | Outer arc intersection point position and bounce measuring tester | |
| CN210014746U (en) | Belt pulley system coplanarity detection tool | |
| CN216115811U (en) | Horizontal lathe bed guide rail precision detection frock | |
| CN212482356U (en) | Inner groove checking fixture | |
| CN220507929U (en) | Detection device for roundness of cylinder | |
| CN213932338U (en) | Groove symmetry measuring instrument | |
| CN212007041U (en) | Caliper system for measuring contour dimension of bucket tooth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |