CN212300156U - Micrometer measuring structure and micrometer - Google Patents
Micrometer measuring structure and micrometer Download PDFInfo
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- CN212300156U CN212300156U CN202022038388.8U CN202022038388U CN212300156U CN 212300156 U CN212300156 U CN 212300156U CN 202022038388 U CN202022038388 U CN 202022038388U CN 212300156 U CN212300156 U CN 212300156U
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- 230000020347 spindle assembly Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 241001422033 Thestylus Species 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910045601 alloy Inorganic materials 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a micrometer measuring structure and a micrometer, relating to the technical field of measuring tools, wherein the micrometer measuring structure comprises a measuring rod component, a fixed sleeve and a rotating part; the end part of the measuring rod assembly extends into the fixed sleeve and is connected with the fixed sleeve in a sliding manner, and the sliding direction is parallel to the axial direction of the fixed sleeve; the rotating part is provided with a spiral groove in sliding fit with the measuring rod assembly, and the rotating part is rotatably arranged in the fixed sleeve and drives the measuring rod assembly to slide relative to the fixed sleeve through the spiral groove. The micrometer measuring structure provided by the utility model converts the rotary motion of the rotating part into the linear motion of the measuring rod component, the measuring rod component only carries out the front and back linear motion, and the measured part can not be damaged by the rotation during the measurement; meanwhile, the rotating piece has the function of amplifying the stroke, the stroke of the measuring rod assembly which rotates for one circle is several times that of a traditional micrometer, and the rapid measurement can be realized.
Description
Technical Field
The utility model belongs to the technical field of measuring tool technique and specifically relates to a micrometer measurement structure and micrometer are related to.
Background
At present, the micrometer adopts screw thread drive, the nut rotates for one circle, the measuring rod moves for one screw pitch, and the moving distance of the measuring rod along the axial direction can be represented by the reading on the circumference of the nut.
Typically the thread pitch between the spindle and the fixed scale is 0.5mm, i.e. 0.5mm forward or backward for each rotation of the knob. The scale on the nut sleeve is 50 equal parts, and the screw micrometer moves forward or backward 0.01mm when rotating a small grid, namely the precision of the screw micrometer is 0.01 mm.
The existing micrometer has the following defects:
1) if the precision of the micrometer needs to be improved, the pitch needs to be reduced, the measuring speed can be obviously reduced if the pitch is reduced, and the existing micrometer transmission mechanism is difficult to realize quick high-precision measurement;
2) because in the measuring process, the measuring rod is always in a rotating state, the measuring rod can damage the surface of the part.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a micrometer measures structure and micrometer, it can not cause the damage to the part of being surveyed, and can realize the rapid survey.
In order to achieve the above object, the utility model provides a following technical scheme:
in a first aspect, the utility model provides a micrometer measuring structure, which comprises a measuring rod component, a fixed sleeve and a rotating component;
the end part of the measuring rod assembly extends into the fixed sleeve and is connected with the fixed sleeve in a sliding manner, and the sliding direction is parallel to the axial direction of the fixed sleeve;
the rotating part is provided with a spiral groove in sliding fit with the measuring rod assembly, and the rotating part is rotatably arranged in the fixed sleeve and drives the measuring rod assembly to slide relative to the fixed sleeve through the spiral groove.
Further, the rotating part is a spiral rod, the spiral rod is spirally formed into the spiral groove and an insertion hole used for inserting the measuring rod assembly, the spiral groove is communicated with the insertion hole, and the axis of the insertion hole is parallel to the axis of the spiral rod.
Further, the measuring rod assembly comprises a measuring rod and a connecting piece;
the end part of the measuring rod is inserted into the insertion hole;
the fixed sleeve is provided with a limit notch, the extending direction of the limit notch is parallel to the axis of the screw rod, and the connecting piece penetrates through the limit notch and the spiral groove and is connected with the measuring rod.
Further, the fixed sleeve comprises an inner sleeve and a limiting assembly, the limiting assembly is installed at two ends of the inner sleeve, and the limiting assembly is used for limiting the axial position of the rotating piece.
Furthermore, the micrometer measuring structure further comprises an outer driving mechanism, wherein the outer driving mechanism is sleeved outside the fixed sleeve and is in transmission connection with the rotating piece so as to drive the rotating piece to rotate relative to the fixed sleeve.
Further, outer actuating mechanism includes activity sleeve and universal driving shaft, the universal driving shaft is located the activity sleeve with rotate between the piece, the universal driving shaft is used for with the power transmission of activity sleeve arrives rotate the piece.
Furthermore, the external driving mechanism further comprises a force measuring component for overload protection, and two ends of the force measuring component are connected with the inner wall of the movable sleeve and the linkage shaft respectively so as to transmit the power of the movable sleeve to the linkage shaft.
In a second aspect, the utility model provides a micrometer, including main part and above-mentioned scheme the micrometer measure the structure, fixed sleeve with main part fixed connection, the measuring staff subassembly runs through the main part and with main part sliding connection, the measuring staff subassembly is kept away from fixed sleeve's tip with form the measurement gap between the main part.
Further, the micrometer further comprises a displacement sensor and a receiver, wherein the displacement sensor and the receiver are installed in the main body, the displacement sensor is fixed on the measuring rod assembly, the receiver is connected with the fixed sleeve, and the receiver is used for monitoring the movement of the displacement sensor and acquiring displacement data.
Further, an anvil is mounted at a position of the main body opposite to the end of the measuring rod assembly away from the fixed sleeve.
The utility model provides a drive arrangement and micrometer of micrometer can produce following beneficial effect:
when using above-mentioned micrometer to measure structure, make and rotate the piece and rotate for fixed sleeve, because measuring staff subassembly and the helicla flute sliding fit on rotating the piece, measuring staff subassembly slides for fixed sleeve under the drive of helicla flute for the tip that the measuring staff subassembly was kept away from fixed sleeve is close to the part of being surveyed gradually, until with the part contact of being surveyed. Compared with the prior art, the micrometer measuring structure provided by the utility model converts the rotary motion of the rotating part into the linear motion of the measuring rod assembly, the measuring rod assembly only carries out the front and back linear motion, and the measured part cannot be damaged due to the rotation during the measurement; meanwhile, the spiral groove in the rotating part has the function of stroke amplification, the stroke of the measuring rod assembly moving in a circle of rotation is several times that of a traditional micrometer, and rapid measurement can be realized.
Compared with the prior art, the utility model provides a micrometer includes main part and above-mentioned micrometer measurement structure, is surveyed the part and places in measuring the clearance when using, rotates the rotation piece for the measuring staff subassembly is kept away from fixed sleeve's tip and is close to gradually being surveyed the part, offsets with main part and measuring staff subassembly respectively until being surveyed the both ends of part, realizes the measurement to being surveyed the part size. The micrometer can effectively protect the measured part when in use, and can realize the rapid measurement of the dimension of the measured part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded view of a micrometer according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a micrometer according to an embodiment of the present invention.
Icon: 1-a measuring rod assembly; 11-measuring rod; 12-a connector; 2-fixing the sleeve; 21-an inner sleeve; 211-limit notch; 22-a stop assembly; 221-a limit sleeve; 222-a fixation sleeve; 3-a screw rod; 4-an external drive mechanism; 41-a movable sleeve; 411-an outer sleeve; 412-end cap; 42-linkage shaft; 5-a force measuring component; 6-a body; 61-a battery; 7-a displacement sensor; 8-a receiver; 9-testing the anvil; 10-sealing the fixing member.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
An embodiment of the first aspect of the present invention is to provide a micrometer measuring structure, as shown in fig. 1 and 2, including a measuring bar assembly 1, a fixed sleeve 2 and a rotating member; the end part of the measuring rod assembly 1 extends into the fixed sleeve 2 and is connected with the fixed sleeve 2 in a sliding mode, and the sliding direction is parallel to the axial direction of the fixed sleeve 2; the rotating piece is provided with a spiral groove which is matched with the measuring rod assembly 1 in a sliding mode, is rotatably arranged in the fixed sleeve 2 and drives the measuring rod assembly 1 to slide relative to the fixed sleeve 2 through the spiral groove.
Taking fig. 2 as an example to explain specifically, in use, the rotating part is made to rotate relative to the fixed sleeve, the spiral groove on the rotating part rotates along with the rotating part, and the measuring rod assembly 1 slides leftwards relative to the fixed sleeve until contacting with the measured part under the pushing of the spiral groove; after the measurement is finished, the rotating part is rotated reversely, the measuring rod assembly 1 slides rightwards under the pushing of the spiral groove, and the measured part is released. In the process, the measuring rod assembly only moves linearly, the surface of a measured part cannot be damaged, the rotating part rotates for one circle, the stroke of the measuring rod assembly 1 is multiple times of that of a traditional micrometer, and rapid measurement can be achieved.
Specifically, as shown in fig. 1, the rotating member is a spiral rod 3, the spiral rod 3 is spirally formed with a spiral groove and an insertion hole for inserting the measuring rod assembly 1, the spiral groove is communicated with the insertion hole, so that a part of the structure of the measuring rod assembly 1 can extend into or penetrate through the spiral groove from the insertion hole to be in sliding fit with the spiral groove, and the axis of the insertion hole is parallel to the axis of the spiral rod 3.
The tip of measuring staff subassembly 1 stretches into in the fixed sleeve and inserts the dress to the cartridge hole, and with helicla flute sliding fit, the cartridge hole plays spacing effect to measuring staff subassembly 1, avoids measuring staff subassembly 1 to rock for the radial emergence of hob.
In at least one embodiment, the axis of the insertion hole coincides with the axis of the screw rod 3.
The insertion hole may be a blind hole, and the spiral groove is located on the inner surface of the screw rod 3 forming the insertion blind hole, or as shown in fig. 1, the outer surface of the screw rod 3 is recessed to form the spiral groove.
In some embodiments, to facilitate assembly of the stylus assembly 1, as shown in fig. 1 and 2, the stylus assembly 1 comprises a stylus 11 and a connector 12; the end part of the measuring rod 11 is inserted into the insertion hole; the fixed sleeve 2 is provided with a limit notch 211, the extending direction of the limit notch 211 is parallel to the axis of the screw rod 3, and the connecting piece 12 penetrates through the limit notch 211 and the spiral groove to be connected with the measuring rod 11.
Spacing notch 211 plays the effect of direction to connecting piece 12 to avoid measuring staff 11 to follow and rotate a rotation, connecting piece 12 runs through the helicla flute and is connected with measuring staff 11 and can guarantee measuring staff subassembly 1 and helicla flute sliding fit's stability, the phenomenon of slippage can not appear.
Specifically, the spindle 11 and the connecting member 12 are detachably connected. During specific assembly, the screw rod 3 can be installed in the fixing sleeve 2, the measuring rod 11 is inserted into the screw rod 3, and finally the connecting piece 12 penetrates through the limiting notch 211 and the spiral groove to be connected with the measuring rod 11.
The connecting element can be a fastening bolt, a pin, etc.
In some embodiments, as shown in fig. 1, the fixed sleeve 2 includes an inner sleeve 21 and a limiting assembly 22, the limiting assembly 22 is installed at both ends of the inner sleeve 21, and the limiting assembly 22 is used for limiting the axial position of the rotating member.
The rotating member is mounted in the inner sleeve 21, and the limiting component 22 limits the axial position of the rotating member on one hand and can support the rotating member on the other hand.
Specifically, as shown in fig. 2, the position limiting assembly 22 includes a position limiting sleeve 221 and a fixing sleeve 222, and the position limiting sleeve 221 and the fixing sleeve 222 are respectively located at two sides of the inner sleeve 21; the fixed sleeve 222 is fixed at the left end of the fixed sleeve 2, the fixed sleeve 222 is rotationally connected with the left end of the rotating part and limits the axial position of the left end of the rotating part; the stop collar 221 is fixed at the right end of the fixed sleeve 2, the stop collar 221 is directly or indirectly abutted against the right end of the rotating part to axially limit the right end of the rotating part, and the stop collar 221 and the fixed sleeve 222 are matched to jointly ensure the stability of the rotating part in the rotating process.
In some embodiments, as shown in fig. 1, the micrometer measuring structure further includes an external driving mechanism 4, and the external driving mechanism 4 is sleeved outside the fixed sleeve 2 and is in transmission connection with the rotating member to drive the rotating member to rotate relative to the fixed sleeve 2.
When the device is used, a measurer can rotate the rotating part by rotating the outer driving mechanism 4, so that the operation of the measurer is more convenient.
Specifically, as shown in fig. 1 and fig. 2, the external driving mechanism 4 includes a movable sleeve 41 and a linkage shaft 42, the linkage shaft 42 is located between the movable sleeve 41 and the rotating member, and the linkage shaft 42 is used to transmit the power of the movable sleeve 41 to the rotating member, that is, when the measuring staff rotates the movable sleeve 41, the linkage shaft 42 rotates synchronously with the movable sleeve 41, and at the same time, drives the rotating member to rotate. The external driving mechanism 4 has a simple structure and can protect the measuring rod assembly 1 and the fixed sleeve 2.
In at least one embodiment, as shown in fig. 1, the external driving mechanism 4 further includes a force measuring unit 5 for overload protection, and two ends of the force measuring unit 5 are respectively connected with the inner wall of the movable sleeve 41 and the linkage shaft 42 to transmit the power of the movable sleeve 41 to the linkage shaft 42.
When the movable sleeve 41 is rotated, when the torque applied to the force measuring component 5 is smaller than the rated torque, the force measuring component 5 can transmit the torque to the linkage shaft 42, and when the torque applied to the force measuring component 5 is larger than the rated torque, the force measuring component can slip and cannot transmit the torque, so that the overload protection effect is achieved.
Specifically, facing the direction of fig. 1, the left and right sides of the force measuring unit 5 are both provided with a limiting slot, the left limiting slot is clamped with a boss on the linkage shaft 42 to transmit torque, the inner wall of the movable sleeve 41 is provided with a boss, and the boss is clamped with the limiting slot on the right side of the force measuring unit 5 to transmit torque.
The movable sleeve 41 includes an outer sleeve 411 and an end cap 412 covering the end of the outer sleeve, the end cap 412 is provided with a connecting shaft, and the force measuring unit 5 is sleeved outside the connecting shaft.
The utility model discloses the embodiment of the second aspect lies in providing a micrometer, the utility model discloses the micrometer that the embodiment of the second aspect provided includes main part 6 and above-mentioned micrometer measurement structure, fixed sleeve 2 and 6 fixed connection of main part, measuring staff subassembly 1 run through main part 6 and with 6 sliding connection of main part, measuring staff subassembly 1 keeps away from between the tip of fixed sleeve 2 and the main part 6 and forms the measurement gap.
Compared with the prior art, the utility model provides a micrometer includes main part 6 and above-mentioned micrometer measurement structure, is surveyed the part and places in measuring the clearance when using, rotates the rotation piece for the tip that fixed sleeve 2 was kept away from to measuring staff subassembly 1 is close to gradually being surveyed the part, offsets with main part 6 and measuring staff subassembly 1 respectively until being surveyed the both ends of part, realizes the measurement to being surveyed the part size. The micrometer can effectively protect the measured part when in use, and can realize the rapid measurement of the dimension of the measured part.
In some embodiments, the micrometer further comprises a displacement sensor 7 and a receiver 8 which are arranged in the main body 6, wherein the displacement sensor 7 is fixed on the measuring rod assembly 1, the receiver 8 is connected with the fixed sleeve 2, and the receiver 8 is used for monitoring the movement of the displacement sensor 7 and acquiring displacement data.
When the measuring rod component 1 moves, the displacement sensor 7 moves synchronously along with the measuring rod component 1 in a reciprocating mode, meanwhile, the receiver 8 acquires moving data of the measuring rod component 1 by monitoring the displacement of the displacement sensor 7 and displays the data on the screen of the main body 6, and a user can easily obtain size data of a measured part.
The installation cavity has on the main part 6, and the installation cavity has import and export, and the installation cavity is worn out from the export through import entering installation cavity to measuring staff 11, and displacement sensor 7 and receiver 8 all are located the installation cavity, and displacement sensor 7 fixes on measuring staff 11, and measuring staff 11 runs through receiver 8.
The exit of installation cavity is equipped with sealing fixed part 10, and sealing fixed part 10 is located between main part 6 and measuring staff 11 to reach waterproof dustproof effect.
As shown in fig. 2, a battery 61 for supplying power to the displacement sensor 7 and the receiver 8 is also provided in the mounting cavity.
In some embodiments, as shown in figure 2, an anvil 9 is mounted to the body 6 opposite the end of the stylus assembly 1 remote from the fixed sleeve 2. The anvil 9 can cooperate with the end of the measuring rod 11 far from the fixed sleeve 2 to clamp a measured part, the material of the anvil is generally hard and wear-resistant tungsten carbide steel or tungsten-containing hard alloy, the main body 6 is protected, and the measurement accuracy after long-time use is ensured.
Specifically, the anvil 9 is inserted into the main body 6.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A micrometer measuring structure is characterized by comprising a measuring rod assembly (1), a fixed sleeve (2) and a rotating part;
the end part of the measuring rod assembly (1) extends into the fixed sleeve (2) and is in sliding connection with the fixed sleeve (2), and the sliding direction is parallel to the axial direction of the fixed sleeve (2);
the rotating part is provided with a spiral groove in sliding fit with the measuring rod assembly (1), and the rotating part is rotatably arranged in the fixed sleeve (2) and drives the measuring rod assembly (1) to slide relative to the fixed sleeve (2) through the spiral groove.
2. The micrometer measuring structure according to claim 1, wherein the rotating member is a screw rod (3), the screw rod (3) is screwed to form the spiral groove and an insertion hole for inserting the measuring rod assembly (1), the spiral groove is communicated with the insertion hole, and the axis of the insertion hole is parallel to the axis of the screw rod (3).
3. Micrometer measuring arrangement according to claim 2, characterized in that the measuring bar assembly (1) comprises a measuring bar (11) and a connecting piece (12);
the end part of the measuring rod (11) is inserted into the insertion hole;
spacing notch (211) have been seted up in fixed sleeve (2), the extending direction of spacing notch (211) is on a parallel with the axis of hob (3), connecting piece (12) run through spacing notch (211) and the helicla flute with measuring staff (11) are connected.
4. The micrometer measuring structure according to claim 1, wherein the fixed sleeve (2) comprises an inner sleeve (21) and a limiting assembly (22), the limiting assembly (22) is mounted at two ends of the inner sleeve (21), and the limiting assembly (22) is used for limiting the axial position of the rotating member.
5. The micrometer measuring structure according to claim 1, further comprising an external driving mechanism (4), wherein the external driving mechanism (4) is sleeved outside the fixed sleeve (2) and is in transmission connection with the rotating member to drive the rotating member to rotate relative to the fixed sleeve (2).
6. The micrometer measuring structure according to claim 5, wherein the outer driving mechanism (4) comprises a movable sleeve (41) and a linkage shaft (42), the linkage shaft (42) is located between the movable sleeve (41) and the rotating member, and the linkage shaft (42) is used for transmitting the power of the movable sleeve (41) to the rotating member.
7. The micrometer measuring structure according to claim 6, wherein the external driving mechanism (4) further comprises a force measuring part (5) for overload protection, and two ends of the force measuring part (5) are respectively connected with the inner wall of the movable sleeve (41) and the linkage shaft (42) so as to transmit the power of the movable sleeve (41) to the linkage shaft (42).
8. A micrometer, characterized by comprising a main body (6) and the micrometer measuring structure of any one of claims 1-7, wherein the fixing sleeve (2) is fixedly connected with the main body (6), the measuring rod assembly (1) penetrates through the main body (6) and is slidably connected with the main body (6), and a measuring gap is formed between the end part of the measuring rod assembly (1) far away from the fixing sleeve (2) and the main body (6).
9. The micrometer of claim 8, further comprising a displacement sensor (7) and a receiver (8) mounted in the main body (6), wherein the displacement sensor (7) is fixed on the spindle assembly (1), the receiver (8) is connected with the fixed sleeve (2), and the receiver (8) is used for monitoring the movement of the displacement sensor (7) and acquiring displacement data.
10. A micrometer according to claim 8, wherein an anvil (9) is mounted to the body (6) opposite the end of the spindle assembly (1) remote from the fixed sleeve (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022038388.8U CN212300156U (en) | 2020-09-17 | 2020-09-17 | Micrometer measuring structure and micrometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022038388.8U CN212300156U (en) | 2020-09-17 | 2020-09-17 | Micrometer measuring structure and micrometer |
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| CN212300156U true CN212300156U (en) | 2021-01-05 |
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| CN202022038388.8U Active CN212300156U (en) | 2020-09-17 | 2020-09-17 | Micrometer measuring structure and micrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981929A (en) * | 2020-09-17 | 2020-11-24 | 青海量具刃具有限责任公司 | Micrometer Measuring Structure and Micrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981929A (en) * | 2020-09-17 | 2020-11-24 | 青海量具刃具有限责任公司 | Micrometer Measuring Structure and Micrometer |
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Address after: No.81037, Xining Economic and Technological Development Zone, Qinghai Province Patentee after: Qinghai Measuring & Cutting Tools Co.,Ltd. Patentee after: Qingliang Technology (Shenzhen) Co.,Ltd. Address before: No.81037, Xining Economic and Technological Development Zone, Qinghai Province Patentee before: Qinghai Measuring & Cutting Tools Co.,Ltd. Patentee before: SHENZHEN DONGYE PRECISION INSTRUMENT Co.,Ltd. |
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