CN210718946U - Device for measuring diameter and calibrating circle center of round object - Google Patents
Device for measuring diameter and calibrating circle center of round object Download PDFInfo
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- CN210718946U CN210718946U CN201921157240.7U CN201921157240U CN210718946U CN 210718946 U CN210718946 U CN 210718946U CN 201921157240 U CN201921157240 U CN 201921157240U CN 210718946 U CN210718946 U CN 210718946U
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Abstract
The utility model discloses a device for measuring the diameter of a round object and calibrating the circle center, which comprises a main ruler, a fixed clamping pin, a movable clamping pin and a measuring component, wherein the main ruler is provided with continuous scales; the fixed clamp foot is vertically and fixedly connected with one end of the main scale; the movable clamping leg is movably arranged on the main scale, the movable clamping leg is parallel to the fixed clamping leg, and a second clamping edge of the movable clamping leg is vertical to the main scale; the measuring component comprises a first fixing seat, a second fixing seat, a first measuring arm and a second measuring arm, the first fixing seat is arranged at the joint of the main scale and the fixed clamping foot, the first measuring arm is movably arranged on the first fixing seat, an included angle between the first measuring arm and the main scale is 45 degrees, the second fixing seat is arranged on the movable clamping foot, the second measuring arm is movably arranged on the second fixing seat, and the included angle between the first measuring arm and the second measuring arm is 90 degrees. The device can quickly measure the diameter of the round object and calibrate the circle center, thereby improving the processing precision.
Description
Technical Field
The utility model relates to a measuring tool technical field especially relates to a device that is used for circular object diameter to measure and centre of a circle to markd.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
In the processing process of the product, the size of the product is measured, so that the processed product meets the manufacturing requirement. When only the product has no product parameters, if the product needs to be copied, the product parameters need to be obtained by using a measuring tool, so that the product can be copied.
When the product is a circular object (cylinder, disc, wafer, sphere, etc.), if the product parameters are unknown, the diameter of the circular object is measured by a vernier caliper, so as to obtain the diameter of the cylinder or sphere, thereby realizing the reproduction processing of the product.
Because circular object need earlier fix a position the centre of a circle of circular object when duplicating the processing, process the circular object after fixing a position again, but slide caliper generally only can obtain the diameter of circular object, can't mark the centre of a circle of circular object, consequently, cause the circular object to duplicate the processing in-process and can't fix a position the centre of a circle of circular object to the precision of processing can't effectively be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the centre of a circle of centre of a circle object can't be markd and result in the machining precision low at least. The purpose is realized by the following technical scheme:
the utility model discloses a first aspect provides a device that is used for circular object diameter to measure and centre of a circle to mark, include:
the main scale is provided with continuous scales along the length direction;
the fixed clamping pin is vertically and fixedly connected to one end of the main scale, and a first clamping edge of the fixed clamping pin is aligned with the starting point of the continuous scale;
the movable clamping leg is movably arranged on the main scale, the movable clamping leg is parallel to the fixed clamping leg, and a second clamping edge of the movable clamping leg is vertical to the main scale;
measuring component, measuring component includes first fixing base, second fixing base, first measuring arm and second measuring arm, first fixing base sets up the junction of main scale and fixed card foot, first measuring arm sets up with mobilizable mode on the first fixing base, first measuring arm with contained angle between the main scale is 45, the second fixing base sets up on the movable card foot, the second measuring arm sets up with mobilizable mode on the second fixing base, first measuring arm with contained angle between the second measuring arm is 90, the second measuring arm with first measuring arm is connected with the detachable mode.
According to the utility model discloses a device that is used for circular object diameter to measure and centre of a circle to mark, when measuring known circular object, explain with the cylinder spare as an example, block the radial outside of cylinder spare with main scale and fixing clip foot, to the direction removal movable clip foot that is close to the fixing clip foot for the second card of movable clip foot is held the limit and is leaned on the surface at the cylinder spare, and at this moment, reads the second card and holds the numerical value that the limit corresponds on the continuous scale, thereby obtains the diameter of cylinder spare. When the circle center of the cylindrical part is calibrated, the first measuring arm and the second measuring arm move to the space between the fixed clamping foot and the movable clamping foot respectively until the end parts of the first measuring arm and the second measuring arm are contacted and matched fixedly, because the included angle between the first measuring arm and the main ruler is 45 degrees, the included angle between the first measuring arm and the second measuring arm is 90 degrees, at the moment, the first measuring arm, the second measuring arm and the main ruler are encircled to form an equilateral right-angled triangle, and the matching point of the first measuring arm and the second measuring arm is the circle center of the cylindrical part.
Through the device for measuring the diameter of the round object and calibrating the circle center, the diameter of the round object can be quickly measured, the circle center of the round object can be quickly calibrated, and the machining precision of the round object is improved.
Additionally, according to the utility model discloses a device that is used for circular object diameter to measure and centre of a circle demarcation still can have following additional technical characterstic:
in some embodiments of the present invention, the one end of the main scale away from the fixed clip is provided with a first extension arm, and the one end of the main scale away from the movable clip is provided with a second extension arm.
In some embodiments of the present invention, the first extension arm includes a first rod and a second rod, an end of the first rod is fixedly connected to the fixing clip foot, and the other end of the first rod is hinged to an end of the second rod.
In some embodiments of the present invention, the second extension arm includes a third rod and a fourth rod, an end of the third rod is fixedly connected to the movable clamping foot and is far away from the one end of the main scale, and the other end of the third rod is hinged to one end of the fourth rod.
In some embodiments of the present invention, the measuring assembly further includes a first fastening member, a first through hole is opened on the first fixing base, the first measuring arm is inserted into the first through hole, and the first fastening member can be engaged with the first fixing base, so that the position of the first measuring arm is fixed.
In some embodiments of the present invention, the first through hole is vertically perforated in the first fixing base, the first fastening member is a first jackscrew, the first jackscrew is matched with the first threaded hole, and a free end of the first jackscrew can enter the first through hole and abut against the surface of the first measuring arm to fix the first measuring arm.
In some embodiments of the present invention, the measuring assembly further includes a second fastening member, a second through hole is opened on the second fixing base, the second measuring arm is inserted into the second through hole, and the second fastening member can be engaged with the second fixing base, so that the second measuring arm is fixed in position.
In some embodiments of the present invention, the second through hole is vertically perforated in the second fixing base, the second fastening member is a second jackscrew, the second jackscrew is matched with the second threaded hole, and the free end of the second jackscrew can enter the second through hole and abut against the surface of the second measuring arm to fix the second measuring arm.
In some embodiments of the present invention, the first measuring arm and the second measuring arm are provided with a first mating end, the second measuring arm and the first measuring arm are provided with a second mating end, the first mating end can mate with the second mating end, so that the first measuring arm is perpendicular to the second measuring arm.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a schematic structural diagram of a first view angle of an apparatus for measuring the diameter and calibrating the center of a circle for a circular object according to an embodiment of the present invention;
fig. 2 schematically shows a schematic structural diagram of a second viewing angle of a device for measuring the diameter of a circular object and calibrating the center of a circle according to an embodiment of the present invention
Fig. 3 is a schematic structural view of the device for measuring the diameter and calibrating the circle center of a circular object according to the present invention, which is used for measuring a cylindrical member;
fig. 4 is a measurement schematic diagram of the device for measuring the diameter and calibrating the circle center of a circular object according to the present invention;
FIG. 5 is a schematic structural diagram of a measuring assembly of the apparatus for measuring the diameter and calibrating the center of a circle shown in FIG. 3;
FIG. 6 is an enlarged view of a portion A of the measuring assembly shown in FIG. 5 (the first measuring arm and the second measuring arm are engaged);
fig. 7 is an enlarged view of a portion a of the measuring assembly shown in fig. 5 (the first measuring arm and the second measuring arm are separated).
10 is a cylindrical member;
1 is a main ruler;
2 is a fixing clamp pin, 21 is a first extension arm, 211 is a first rod, and 212 is a second rod;
3 is a movable clamping pin, 31 is a second extension arm, 311 is a third rod, and 312 is a fourth rod;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, according to an embodiment of the present invention, a device for measuring the diameter and calibrating the center of a circle of a circular object is provided, which includes a main scale 1, a fixed clip 2, a movable clip 3 and a measuring assembly 4, wherein the main scale 1 is provided with continuous scales along the length direction thereof; the fixed clamping pin 2 is vertically and fixedly connected with one end of the main scale 1, and the first clamping edge of the fixed clamping pin 2 is aligned with the starting point of the continuous scale; the movable clamping leg 3 is movably arranged on the main scale 1, the movable clamping leg 3 is parallel to the fixed clamping leg 2, and a second clamping edge of the movable clamping leg 3 is vertical to the main scale 1; the measuring component 4 comprises a first fixing seat 41, a second fixing seat 44, a first measuring arm 42 and a second measuring arm 43, the first fixing seat 41 is arranged at the joint of the main scale 1 and the fixed clamping foot 2, the first measuring arm 42 is movably arranged on the first fixing seat 41, the included angle between the first measuring arm 42 and the main scale 1 is 45 degrees, the second fixing seat 44 is arranged on the movable clamping foot 3, the second measuring arm 43 is movably arranged on the second fixing seat 44, the included angle between the first measuring arm 42 and the second measuring arm 43 is 90 degrees, and the second measuring arm 43 is detachably connected with the first measuring arm 42.
According to the utility model discloses a device that is used for circular object diameter to measure and centre of a circle to mark, when measuring known circular object, explain with cylinder 10 as an example, block the radial outside of cylinder 10 with main scale 1 and fixed card foot 2, remove movable card foot 3 to the direction that is close to fixed card foot 2, make movable card foot 3's second card hold the limit and lean on the surface at cylinder 10, at this moment, read the second card and hold the numerical value that the limit corresponds on the continuous scale, thereby obtain the diameter of cylinder 10. When the circle center of the cylindrical member 10 is calibrated, the first measuring arm 42 and the second measuring arm 43 respectively move to the space between the fixed clamping leg 2 and the movable clamping leg 3 until the end parts of the first measuring arm 42 and the second measuring arm 43 contact and are matched and fixed, because the included angle between the first measuring arm 42 and the main ruler 1 is 45 degrees and the included angle between the first measuring arm 42 and the second measuring arm 43 is 90 degrees, at this time, an equilateral right-angled triangle is formed by the first measuring arm 42, the second measuring arm 43 and the main ruler 1 in a surrounding manner, wherein the matching point of the first measuring arm 42 and the second measuring arm 43 is the circle center of the cylindrical member 10.
Through the device for measuring the diameter of the round object and calibrating the circle center, the diameter of the round object can be quickly measured, the circle center of the round object can be quickly calibrated, and the machining precision of the round object is improved.
It should be understood that the length of the first measuring arm 42 between the fixed clamping leg 2 and the movable clamping leg 3 is equal to the length of the second measuring arm 43 between the fixed clamping leg 2 and the movable clamping leg 3, since the first measuring arm 42 is perpendicular to the second measuring arm 43, and at this time, an equilateral right triangle is defined between the first measuring arm 42, the second measuring arm 43 and the main scale 1, meanwhile, the distance from the point where the connection point of the first measuring arm 42 and the second measuring arm 43 is projected to the fixed clamping leg 2 to the main scale 1 is the radius of the circular object, the distance from the point where the connection point of the first measuring arm 42 and the second measuring arm 43 is projected to the movable clamping leg 3 to the main scale 1 is also the radius of the circular object, and the distance from the connection point of the first measuring arm 42 and the second measuring arm 43 to the main scale 1 is also the radius of the circular object, so that the accuracy of the circle center of the circular object determined by the connection point of the first connecting arm and the second connecting arm can be ensured to be more accurate, thereby ensuring the processing precision of the round object.
Referring to fig. 4, a circle is a circular object, point a is a clamping point of a fixed clamping pin, point B is a clamping point of a movable clamping pin, point C is a position of a second fixed seat, point D is a position of a first fixed seat, point O is a center of the circular object, line DO is a first measuring arm, and line CO is a second measuring arm, the device for measuring the diameter and calibrating the center of the circular object in the present application is described in principle with reference to fig. 4, specifically, parallel line segments AD and BC are tangent to the circle at A, B points, it can be known from the nature of the circle that line segment AB is a diameter of the circle, AB must pass through center O of the circle, and both line segments AD and BC are perpendicular to line segment AB, perpendicular to center O, and the circle at P point, line segment OP is a radius of the circle, and diameter is parallel to line segments AD and BC, tangent to line at P point DC (ruler surface of the main ruler), line segments AD, BC and OP, OP and line segments AD, BC are perpendicular to each other length of the rectangle, and the length of the diagonal lines AD, cp, obdo is equal to length of the rectangle, and the length of the rectangle of the octagon, ∠, and the length of the octagon, and the octagon, ∠, which are equal to each other length.
It should be noted that the fixed clip 2 has the same length as the movable clip 3 (from the position intersecting the circle to the main scale 2) (the two clips are two parallel tangents of a certain diameter, the plane (straight line) of the main scale 2 is tangent to the cylinder at this time, and is parallel to the straight line of the diameter above, so the distance from the intersection point (intersecting straight line) of the two clips and the circle to the main scale 2 is the same).
It will be further appreciated that the end of the fixed calliper 2 remote from the main scale 1 is provided with a first elongate arm 21 and the end of the movable calliper remote from the main scale 1 is provided with a second elongate arm 31. Specifically, the first extension arm 21 and the second extension arm 31 are both foldable structures, when the lengths of the fixed clamping leg 2 and the movable clamping leg 3 are greater than or equal to the radius of the round object, the first extension arm 21 and the second extension arm 31 are both in a retracted state, the round object can be measured only through the cooperation between the fixed clamping leg 2 and the movable clamping leg 3, when the lengths of the fixed clamping leg 2 and the movable clamping leg 3 are less than the radius of the round object, the first extension arm 21 and the second extension arm 31 are both in an unfolded state, and the round object can be measured through the cooperation of the first extension arm 21 and the second extension arm 31 on the round object.
Through setting up first extension arm 21 and second extension arm 31, can effectively increase the card scope of holding between fixed calorie of foot 2 and the movable calorie of foot 3, can effectively increase measuring device's measuring range promptly.
Further, the first extension arm 21 includes a first rod 211 and a second rod 212, one end of the first rod 211 is fixed to one end of the fixing clip 2 away from the main scale 1, and the other end of the first rod 211 is hinged to one end of the second rod 212. For articulated between first pole 211 and the second pole 212, can realize effective folding and the expansion of first extension arm 21 to the volume is littleer when making first extension arm 21 fold, and then portable.
It should be pointed out that the connection mode between the first rod 211 and the fixing clip 2 can also be hinged, and the first rod 211 can be folded relative to the fixing clip 2 in a hinged mode, so that the volume of the measuring device is further reduced, and the carrying and the use are more facilitated.
Further, the second extension arm 31 includes a third rod 311 and a fourth rod 312, one end of the third rod 311 is fixed to one end of the movable clamping foot 3 away from the main scale 1, and the other end of the third rod 311 is hinged to one end of the fourth rod 312. For articulated between third pole 311 and the fourth pole 312, can realize effective folding and the expansion of second extension arm 31 to the volume is littleer when making second extension arm 31 fold, and then portable.
It should be noted that the connection mode between the third rod 311 and the movable latch 3 may also be an articulated connection mode, and the third rod 311 can be folded relative to the movable latch 3 by the articulated connection mode, so that the volume of the measuring device is further reduced, and the carrying and the use are more facilitated.
Further, the measuring assembly 4 further includes a first fastening member, a first through hole is formed in the first fixing seat 41, the first measuring arm 42 is arranged in the first through hole in a penetrating manner, and the first fastening member can be matched with the first fixing seat 41, so that the position of the first measuring arm 42 is fixed. Specifically, when the circle center of the circular object needs to be calibrated, the circular object is clamped between the fixed clamping leg 2 and the movable clamping leg 3, the first measuring arm 42 is moved between the fixed clamping leg 2 and the movable clamping leg 3, and after the first measuring arm 42 is matched with the second measuring arm 43, the first measuring arm 42 is fixed with the first fixing seat 41 by using the first fastening piece, so that the position of the first measuring arm 42 is effectively maintained, and the calibration precision of the circle center of the circular object is effectively improved.
It should be noted that the first measuring arm 42 may be a rod-shaped member or a bar-shaped member, and the description thereof is omitted here.
Further, a first threaded hole through which the first through hole is vertically communicated is formed in the first fixing seat 41, the first fastener is a first jackscrew, the first jackscrew is matched with the first threaded hole, and the free end of the first jackscrew can enter the first through hole and abut against the surface of the first measuring arm 42 to fix the first measuring arm 42. First screw hole and first through-hole link up perpendicularly, when the free end of first jackscrew did not enter into first through-hole, first measuring arm 42 can remove first through-hole relatively to the adjustment of first measuring arm 42 position is realized, when the position of first measuring arm 42 needs to be fixed, screws first jackscrew, makes the free end of first jackscrew enter into first through-hole, supports the surface that leans on first measuring arm 42 until the free end of first jackscrew, thereby effectively fixes the position of first measuring arm 42. The structure is simple, the fixing strength is high, and the operation in the using process is convenient.
It is specifically understood that the measuring assembly 4 further includes a second fastening member, a second through hole is opened on the second fixing seat 44, the second measuring arm 43 is inserted into the second through hole, and the second fastening member can be matched with the second fixing seat 44, so that the position of the second measuring arm 43 is fixed. Specifically, when the circle center of the circular object needs to be calibrated, the circular object is clamped between the fixed clamping leg 2 and the movable clamping leg 3, the second measuring arm 43 is moved between the fixed clamping leg 2 and the movable clamping leg 3, and after the second measuring arm 43 is matched with the first measuring arm 42, the second measuring arm 43 is fixed with the second fixing seat 44 by using the second fastening piece, so that the position of the second measuring arm 43 is effectively maintained, and the calibration precision of the circle center of the circular object is effectively improved.
It should be noted that the second measuring arm 43 may be a rod-shaped member or a bar-shaped member, and the description thereof is omitted here.
Specifically, a second threaded hole vertically penetrating through the second through hole is formed in the second fixing seat 44, the second fastener is a second jackscrew, the second jackscrew is matched with the second threaded hole, and the free end of the second jackscrew can enter the second through hole and abut against the surface of the second measuring arm 43 to fix the second measuring arm 43. The second threaded hole is vertically communicated with the second through hole, when the free end of the second jackscrew does not enter the second through hole, the second measuring arm 43 can move relative to the second through hole, so that the position of the second measuring arm 43 can be adjusted, when the position of the second measuring arm 43 needs to be fixed, the second jackscrew is screwed, so that the free end of the second jackscrew enters the second through hole, until the free end of the second jackscrew abuts against the surface of the second measuring arm 43, and therefore the position of the second measuring arm 43 is effectively fixed. The structure is simple, the fixing strength is high, and the operation in the using process is convenient.
Specifically, one end of the first measuring arm 42, which is matched with the second measuring arm 43, is provided with a first matching end 421, one end of the second measuring arm 43, which is matched with the first measuring arm 42, is provided with a second matching end 431, and the first matching end 421 can be matched with the second matching end 431 so that the first measuring arm 42 is perpendicular to the second measuring arm 43. The first matching end 421 has a 45-degree first inclined plane, the second matching end has a 45-degree second inclined plane, and when the first measuring arm 42 is matched with the second measuring arm 43, the first inclined plane is attached to the second inclined plane, so that the first measuring arm 42 is perpendicular to the second measuring arm 43, the center of a circle of a circular object is calibrated by using the connecting point of the first measuring arm 42 and the second measuring arm 43, and the calibration precision is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A device for measuring the diameter and calibrating the circle center of a round object is characterized by comprising:
the main scale is provided with continuous scales along the length direction;
the fixed clamping pin is vertically and fixedly connected to one end of the main scale, and a first clamping edge of the fixed clamping pin is aligned with the starting point of the continuous scale;
the movable clamping leg is movably arranged on the main scale, the movable clamping leg is parallel to the fixed clamping leg, and a second clamping edge of the movable clamping leg is vertical to the main scale;
measuring component, measuring component includes first fixing base, second fixing base, first measuring arm and second measuring arm, first fixing base sets up the junction of main scale and fixed card foot, first measuring arm sets up with mobilizable mode on the first fixing base, first measuring arm with contained angle between the main scale is 45, the second fixing base sets up on the movable card foot, the second measuring arm sets up with mobilizable mode on the second fixing base, first measuring arm with contained angle between the second measuring arm is 90, the second measuring arm with first measuring arm is connected with the detachable mode.
2. The device for diameter measurement and circle center calibration of a circular object according to claim 1, wherein a first extension arm is arranged at one end of the fixed clamping leg far away from the main ruler, and a second extension arm is arranged at one end of the movable clamping leg far away from the main ruler.
3. The device for diameter measurement and circle center calibration of a circular object according to claim 2, wherein the first extension arm comprises a first rod and a second rod, one end of the first rod is fixedly connected to one end of the fixing clamp foot away from the main ruler, and the other end of the first rod is hinged to one end of the second rod.
4. The device for diameter measurement and circle center calibration of a circular object according to claim 2, wherein the second extension arm comprises a third rod and a fourth rod, one end of the third rod is fixedly connected to one end of the movable clamping foot away from the main ruler, and the other end of the third rod is hinged to one end of the fourth rod.
5. The device for diameter measurement and circle center calibration of a circular object according to claim 1, wherein the measuring assembly further comprises a first fastening member, the first fixing base is provided with a first through hole, the first measuring arm is inserted into the first through hole, and the first fastening member can be matched with the first fixing base so as to fix the position of the first measuring arm.
6. The device for diameter measurement and circle center calibration of a circular object according to claim 5, wherein the first fixing seat is provided with a first threaded hole through which the first through hole vertically penetrates, the first fastening member is a first jackscrew, the first jackscrew is matched with the first threaded hole, and a free end of the first jackscrew can enter the first through hole and abut against the surface of the first measuring arm to fix the first measuring arm.
7. The device for diameter measurement and circle center calibration of a circular object according to claim 5, wherein the measuring assembly further comprises a second fastening member, the second fixing base is provided with a second through hole, the second measuring arm is inserted into the second through hole, and the second fastening member can be matched with the second fixing base so as to fix the position of the second measuring arm.
8. The device for diameter measurement and circle center calibration of a circular object according to claim 7, wherein a second threaded hole is formed in the second fixing seat, the second through hole is vertically through, the second fastening member is a second jackscrew, the second jackscrew is matched with the second threaded hole, and a free end of the second jackscrew can enter the second through hole and abut against the surface of the second measuring arm to fix the second measuring arm.
9. The device for diameter measurement and circle center calibration of a circular object according to claim 7, wherein the end of the first measuring arm engaged with the second measuring arm is provided with a first engaging end, the end of the second measuring arm engaged with the first measuring arm is provided with a second engaging end, and the first engaging end can engage with the second engaging end to make the first measuring arm perpendicular to the second measuring arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157240.7U CN210718946U (en) | 2019-07-23 | 2019-07-23 | Device for measuring diameter and calibrating circle center of round object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157240.7U CN210718946U (en) | 2019-07-23 | 2019-07-23 | Device for measuring diameter and calibrating circle center of round object |
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| Publication Number | Publication Date |
|---|---|
| CN210718946U true CN210718946U (en) | 2020-06-09 |
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| CN201921157240.7U Active CN210718946U (en) | 2019-07-23 | 2019-07-23 | Device for measuring diameter and calibrating circle center of round object |
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