CN115752133A - Micrometer for positioning inner and outer diameters - Google Patents
Micrometer for positioning inner and outer diameters Download PDFInfo
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- CN115752133A CN115752133A CN202211626777.XA CN202211626777A CN115752133A CN 115752133 A CN115752133 A CN 115752133A CN 202211626777 A CN202211626777 A CN 202211626777A CN 115752133 A CN115752133 A CN 115752133A
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- micrometer
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- frame
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Abstract
The invention provides a micrometer for positioning inner and outer diameters, which comprises a micrometer frame, wherein one end of the micrometer frame is rotatably connected with a measuring anvil, the measuring anvil is provided with an outer diameter anvil block and an inner diameter anvil block which are limited in opposite directions, the other end of the micrometer frame is connected with a fixed sleeve, a micrometer screw rod is slidably arranged in the fixed sleeve and is coaxially arranged with the measuring anvil, the micrometer screw rod is in threaded connection with a micro-adjusting knob through a micro-cylinder which is rotatably arranged on the outer side of the fixed sleeve to carry out axial driving, and the front end of the micrometer screw rod is provided with a thimble facing one side of the micro-cylinder.
Description
Technical Field
The invention relates to the field of measuring instruments, in particular to a micrometer for positioning inner and outer diameters.
Background
Micrometer is a tool for measuring length more precisely than vernier caliper, and its length can be accurately measured to 0.01mm, and its measuring range is several centimeters. A part of the device is processed into a thread with the thread pitch of 0.5mm, and a measured object is clamped by rotating in a threaded sleeve of the fixed sleeve so as to realize measurement.
The micrometer divide into external micrometer and internal micrometer usually, is used for the measurement of part internal and external diameter respectively to not have the commonality, when external diameter in needs simultaneous measurement, then need be equipped with corresponding two kinds of micrometers, increased instrument quantity, improved purchase cost and accomodate the cost.
There is a need for a micrometer that can measure both inside and outside diameters.
Disclosure of Invention
The invention aims to provide a micrometer for positioning inner and outer diameters.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a micrometer of external diameter in location, includes the chi frame, the one end of chi frame is rotated and is connected with the anvil block, be provided with spacing external diameter hammering block and the internal diameter hammering block of opposite direction on the anvil block, the other end of chi frame is connected with fixed sleeve pipe, fixed cover intraductal slip is provided with the micrometer screw rod, micrometer screw rod and the coaxial setting of anvil block, the micrometer screw rod rotates the micro-section of thick bamboo that sets up through the fixed sleeve pipe outside and carries out axial drive with fine setting knob threaded connection, the front end of micrometer screw rod is provided with the thimble towards micro-section of thick bamboo one side.
As a further scheme of the invention: the ruler frame comprises a U-shaped frame and a screw rod, the screw rod is arranged at one end of the U-shaped frame, the anvil is connected with the screw rod in a threaded mode and is arranged on the U-shaped frame in a rotating mode, and the anvil rotates and moves axially along the circumferential direction of the screw rod.
As a further scheme of the invention: the outer sides of the joints of the two sides of the U-shaped frame and the screw are provided with circumferential limiting blocks, and the anvil is provided with corresponding abutting blocks and the limiting blocks for circumferential limiting to carry out limiting control on the stroke of the anvil.
As a further scheme of the invention: the measuring anvil comprises a stud, an outer diameter anvil block and an inner diameter anvil block, the stud is rotatably connected with the ruler frame, the outer diameter anvil block and the inner diameter anvil block are arranged on the stud in an angle mode, and the outer diameter anvil block and the inner diameter anvil block are respectively kept in a coaxial and vertical state with the micrometer screw when the stud rotates to the positions of the two ends of the stroke.
As a further scheme of the invention: the contact surface of the front end of the outer diameter anvil block and the object to be measured is provided with a V-shaped groove structure.
As a further scheme of the invention: the surface of the inner diameter anvil block, which is contacted with a measured object, is embedded with a part of protruding balls, and when the measuring anvil rotates to a state that the inner diameter resisting block is vertical to the micrometric screw, the balls face to one side far away from the micro-drum.
As a further scheme of the invention: the outer diameter anvil block and the inner diameter anvil block are arranged at the positions deviating from the center of the stud and are arranged towards one side far away from the corresponding limiting direction.
As a further scheme of the invention: the micrometer screw rod comprises a push rod and a thimble, the push rod is a rod-shaped main body in sliding connection with the fixed sleeve, a correcting frame is vertically arranged at the front end of the rod body in a rotating mode, and the thimble facing one side of the micro-cylinder is connected to one side of the correcting frame.
As a further scheme of the invention: the fixed sleeve and the micro-drum are provided with a positive and a negative number indicating numbers correspondingly.
As a further scheme of the invention: the two sets of the readings on the fixed sleeve are arranged in a staggered mode, and the staggered distance is consistent with the farthest distance from the tip of the thimble to the ball.
Advantageous effects
1. The measuring anvil is provided with the outer diameter anvil block and the inner diameter anvil block which are limited in opposite directions, the bidirectional positioning of the inner side and the outer side is realized by matching with a thimble structure on the micrometer screw, the switching between the inner micrometer and the outer micrometer is realized by matching with bidirectional scale reading, the use is convenient, and the purchase and storage cost is also reduced.
2. The anvil and the micrometer screw structure are rotatably arranged, so that the angle can be adjusted, the problem that the measuring structure is possibly collided with a measured object and cannot be used after the measuring mode is switched is solved, and the applicability is improved.
3. The fixed sleeve and the micro-cylinder are provided with a positive index and a negative index corresponding to the scales on the fixed sleeve and the micro-cylinder, so that the readings in two states are convenient, the two indexes on the micro-cylinder are arranged in a staggered mode, the staggered distance is consistent with the farthest distance from the tip of the thimble to the ball, and the distance error between the thimble and the ball during the inner diameter measurement is corrected by utilizing the deviation of the indexes.
4. The inner diameter measurement of the invention is carried out on the measured object through the ball and the thimble, and the thimble on one side can be fixedly matched with the ball on the other side to roll, so that the maximum inner diameter value can be found in a self-adaptive manner in the expansion process, and the measurement error is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the anvil installation of the present invention.
FIG. 3 is a schematic view of the structure of the ruler frame of the present invention.
Fig. 4 is a schematic diagram of the anvil structure of the present invention.
Fig. 5 is a schematic view of an anvil according to another aspect of the present invention.
FIG. 6 is a schematic view of a micrometer screw according to the present invention.
Fig. 7 is a schematic view of the structure of the fixing sleeve of the present invention.
In FIGS. 1-7: 1-rule frame, 11-U-shaped frame, 12-screw rod, 13-limiting block, 2-measuring anvil, 21-stud, 22-abutting block, 23-outer diameter anvil block, 24-inner diameter anvil block, 25-ball, 3-fixing sleeve, 4-micrometer screw rod, 41-ejector rod, 42-correction frame, 43-ejector pin, 5-micro-cylinder and 6-micro-adjustment knob.
Detailed Description
The following will clearly and completely describe the specific technical scheme of the invention with reference to fig. 1-7 in the attached drawings of the specification of the invention;
referring to fig. 1-7, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention; FIG. 2 is a schematic view of the anvil installation of the present invention; FIG. 3 is a schematic view of the structure of the ruler frame of the present invention; FIG. 4 is a schematic view of the anvil structure of the present invention; FIG. 5 is a schematic view of an anvil according to another aspect of the present invention; FIG. 6 is a schematic view of a micrometer screw according to the present invention; fig. 7 is a schematic view of the structure of the fixing sleeve of the present invention.
The micrometer of external diameter in location that this embodiment provided, including ruler frame 1, ruler frame 1's one end is rotated and is connected with survey anvil 2, be provided with the spacing external diameter hammering block 23 of opposite direction and internal diameter hammering block 24 on the survey anvil 2, ruler frame 1's the other end is connected with fixed sleeve 3, it is provided with micrometer screw rod 4 to slide in the fixed sleeve 3, micrometer screw rod 4 and the coaxial setting of survey anvil 2, micrometer screw rod 4 rotates the micro-section of thick bamboo 5 and the fine setting knob 6 threaded connection who sets up through the fixed sleeve 3 outside and carries out axial drive, micrometer screw rod 4's front end is provided with towards the thimble 43 of micro-section of thick bamboo one side.
The ruler frame 1 comprises a U-shaped frame 11 and a screw 12, the screw 12 is arranged at one end of the U-shaped frame 11, the anvil 2 and the screw 12 are in threaded connection and are rotatably arranged on the U-shaped frame 11, and the anvil rotates and moves axially along the circumferential direction of the screw 12.
Specifically, the outer side of the joint of the two sides of the U-shaped frame 11 and the screw 12 is provided with a circumferential limiting block 13, and the anvil 2 is provided with a corresponding abutting block 22 which circumferentially limits the limiting block 13 to control the limiting of the stroke of the anvil 2.
The measuring anvil 2 comprises a stud 21, an outer diameter anvil block 23 and an inner diameter anvil block 24, the stud 21 is rotatably connected with the ruler frame 1, the outer diameter anvil block 23 and the inner diameter anvil block 24 are arranged at the upper angle of the stud 21, and the outer diameter anvil block 23 and the inner diameter anvil block 24 are respectively kept in a coaxial and vertical state with the micrometer screw 4 when the stud 21 rotates to the positions at the two ends of the stroke;
through the rotary connection of the measuring anvil 2 and the arrangement of the outer diameter anvil block 23 and the inner diameter anvil block 24 on the measuring anvil 2, the contact between the measured object from different directions can be realized through the outer diameter anvil block 23 and the inner diameter anvil block 24 respectively through the connection angle of the rotary measuring anvil 2, and further the measurement switching between the inner diameter and the outer diameter is realized;
the abutting blocks 22 and the limiting blocks 13 on the two sides realize the positioning of the measuring state of the inner diameter and the outer diameter by limiting the rotation angle of the measuring anvil 2, and simultaneously play a role in limiting and locking.
Specifically, the contact surface between the front end of the outer diameter anvil block 23 and the object to be measured has a V-shaped groove structure, and the V-shaped groove is utilized to guide the object to be measured, so that the clamping stability and precision are improved, and the measurement precision is improved.
Specifically, a partially protruding ball 25 is embedded in the surface of the inner diameter anvil block 23, which is in contact with the object to be measured, and when the measuring anvil 2 rotates to a state that the inner diameter resisting block 24 is perpendicular to the micrometer screw 4, the ball 25 faces to the side away from the micro-cylinder 5;
by means of the arrangement of the ball, the ball moves under the reaction force of the inner wall of the measured object, so that the measuring anvil can automatically move to the position with the maximum inner diameter, and the inner diameter can be conveniently measured.
Specifically, the outer diameter anvil block 23 and the inner diameter anvil block 24 are arranged at positions deviated from the center of the stud 21 and are arranged towards one side away from the corresponding limiting direction, and displacement generated during axial movement of the measuring anvil 2 is corrected by utilizing the eccentric arrangement of the outer diameter anvil block 23 and the inner diameter anvil block 24, so that the contact points of the two sides of the measured object and the measured object are ensured to be positioned on the same straight line parallel to the micro-drum 5, and errors are prevented.
The micrometer screw 4 comprises a push rod 41 and a thimble 43, the push rod 41 is a rod-shaped main body in sliding connection with the fixed sleeve 3, the front end of the rod body is vertically and rotatably provided with a correction frame 42, and one side of the correction frame 42 is connected with the thimble 43 facing one side of the micro-cylinder 5;
the correcting frame 42 is used for correcting, position errors caused by changes of contact points are eliminated, the thimble 43 is arranged, the contact precision and the stabilizing effect of the end of the micrometer screw rod 4 and a measured object are improved, the measuring precision is improved, the correcting frame 42 and the measuring anvil 2 are arranged in a rotating mode, the deflection effect on the contact point structure can be achieved after mode switching, and the conflict influence of the measuring structure in different modes is avoided.
Wherein, the fixed sleeve 3 and the micro-drum 5 are provided with a positive and a negative two sets of readings corresponding to the scales, which is convenient for reading in two states.
Specifically, two sets of indices are arranged on the fixed sleeve 3 in a staggered manner, the staggered distance is consistent with the farthest distance from the tip end of the thimble 43 to the ball 25, and the distance error between the thimble 43 and the ball 25 during the inner diameter measurement is corrected by using the offset of the indices.
When the technical scheme described in the embodiment is implemented, when the outer diameter is measured, a measured object is placed in the V-shaped groove of the outer diameter anvil block 13 of the measuring anvil 2, the inner thread drives the front end of the micrometer screw 4 to extend out by rotating the differential cylinder 5 and the fine adjustment knob 6, the measured object is clamped from the other side, and finally reading is carried out according to the surface readings of the fixed sleeve 3 and the differential cylinder 5;
when measuring the inner diameter, the measuring anvil 2 is rotated to move the measuring anvil 2 to the limit position of the other end along the screw 12, the micro-cylinder 5 and the fine adjustment knob 6 are rotated to drive the front end of the micro-screw 4 to extend to the tail end of the stroke, the ball 25 and the thimble 43 are partially inserted into the inner side of the measured object, the micro-cylinder 5 and the fine adjustment knob 6 are rotated reversely, the measured object is clamped reversely from the inner side of the measured object, and the measurement reading of the inner diameter is performed through the reversed reading.
Claims (10)
1. A micrometer for positioning inner and outer diameters, comprising:
the micrometer frame (1) is used for grabbing the micrometer and is linked with all parts in charge;
the measuring anvil (2) is rotatably connected to one end of the ruler frame (1), and an outer diameter anvil block (23) and an inner diameter anvil block (24) which are limited in opposite directions are arranged on the measuring anvil (2) and used for abutting and fixing one end of a measured object;
the micrometer screw rod (4), the other end of the ruler frame (1) is connected with a fixed sleeve (3), the micrometer screw rod (4) is arranged in the fixed sleeve (3) in a sliding mode, the micrometer screw rod (4) and the measuring anvil (2) are coaxially arranged, the micrometer screw rod (4) is connected with a fine adjustment knob thread (6) through a micro-cylinder (5) rotatably arranged on the outer side of the fixed sleeve (3) to carry out axial driving, and the measuring anvil (2) is matched from the other side to carry out clamping measurement on a measured object;
the thimble (43) is arranged at the front end of the micrometer screw (4) and faces towards one side of the micro-cylinder (5) and is used for measuring the inner diameter of the measured object.
2. A micrometer for positioning inner and outer diameters according to claim 1, wherein: the ruler frame (1) comprises a U-shaped frame (11) and a screw rod (12), the screw rod (12) is arranged at one end of the U-shaped frame (11), the anvil (2) and the screw rod (12) are connected in a threaded mode and are arranged on the U-shaped frame (11) in a rotating mode, and the anvil and the screw rod (12) rotate in the circumferential direction and move in the axial direction.
3. A micrometer for positioning inside and outside diameters according to claim 2, wherein said frame (1) further comprises:
the limiting block (13) is arranged in the circumferential direction on the outer side of the joint of the two sides of the U-shaped frame (11) and the screw (12), and the corresponding abutting block (22) and the limiting block (13) are arranged on the anvil (2) and are circumferentially limited to limit the stroke of the anvil (2).
4. A micrometer for positioning inner and outer diameters according to claim 1, wherein the anvil (2) comprises:
the stud (21), the stud (21) is connected with the ruler frame (1) in a rotating way, and is an internal thread cylinder;
the outer diameter anvil block (23) and the inner diameter anvil block (24) are arranged on the stud (21) in an angle mode, and when the stud (21) rotates to the positions of the two ends of the stroke, the outer diameter anvil block (23) and the inner diameter anvil block (24) are respectively kept in a coaxial and vertical state with the micrometer screw (4).
5. A micrometer for positioning inner and outer diameters according to claim 4, wherein: the contact surface of the front end of the outer diameter anvil block (23) and the object to be measured is provided with a V-shaped groove structure.
6. A micrometer for positioning inner and outer diameters according to claim 4, wherein: the inner diameter anvil block (24) is embedded with a partially protruding ball (25) on the surface contacted with a measured object, and when the measuring anvil (2) rotates to the state that the inner diameter abutting block (24) is perpendicular to the micrometer screw (4), the ball (25) faces to the side far away from the micro-drum (5).
7. A micrometer for positioning inner and outer diameters according to claim 4, wherein: the outer diameter anvil block (23) and the inner diameter anvil block (24) are arranged at positions deviating from the center of the stud (21) and are arranged towards one side far away from the corresponding limiting direction.
8. A micrometer for positioning inner and outer diameters according to claim 1, wherein: the micrometer screw (4) comprises:
the ejector rod (41), the ejector rod (41) is a rod-shaped main body which is connected with the fixed sleeve (3) in a sliding way, and the front end of the rod body (41) is vertically and rotatably provided with a correction frame (42);
the thimble (43) is connected with one side of the correction frame (42) and faces to the thimble (43) of the micro-cylinder (5).
9. A micrometer for positioning inner and outer diameters according to claim 1, wherein: the fixed sleeve (3) and the micro-drum (5) are provided with a positive and a negative number in a scale corresponding manner.
10. A micrometer for positioning inner and outer diameters according to claim 8 and 9, wherein: the two sets of the registers on the fixed sleeve (3) are arranged in a staggered mode, and the staggered distance is consistent with the farthest distance from the tip of the thimble (43) to the ball (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626777.XA CN115752133A (en) | 2022-12-17 | 2022-12-17 | Micrometer for positioning inner and outer diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626777.XA CN115752133A (en) | 2022-12-17 | 2022-12-17 | Micrometer for positioning inner and outer diameters |
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| Publication Number | Publication Date |
|---|---|
| CN115752133A true CN115752133A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211626777.XA Pending CN115752133A (en) | 2022-12-17 | 2022-12-17 | Micrometer for positioning inner and outer diameters |
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| CN (1) | CN115752133A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB419678A (en) * | 1933-06-15 | 1934-11-16 | Ambrose Shardlow & Company Ltd | Improvements in or relating to micrometer screw gauges |
| CN2108268U (en) * | 1990-12-24 | 1992-06-24 | 雷树北 | Multifunctional outside diameter micrometer |
| CN2725842Y (en) * | 2004-09-22 | 2005-09-14 | 合肥工业大学 | Internal and external diameter microcalipers |
| WO2013037190A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州蓝王机床工具科技有限公司 | Inner diameter micrometer |
| CN104457476A (en) * | 2014-12-25 | 2015-03-25 | 苏州莱测检测科技有限公司 | Multifunctional micrometer |
| CN204268994U (en) * | 2014-12-25 | 2015-04-15 | 苏州莱测检测科技有限公司 | A kind of multi-functional milscale |
| CN107702614A (en) * | 2017-10-13 | 2018-02-16 | 威海职业学院 | A kind of micrometer |
| CN208860225U (en) * | 2018-10-26 | 2019-05-14 | 西安市科创人防工程防护设备质量检测有限公司 | A kind of multi-functional micrometer |
| CN209310662U (en) * | 2019-02-20 | 2019-08-27 | 广州市全昌机电设备有限公司 | Set the detection internal-and external diameter micrometer of error range alarm prompt function |
| CN210004894U (en) * | 2019-06-28 | 2020-01-31 | 长春市宝成伟业汽车零部件有限公司 | multifunction micrometer |
| CN217005558U (en) * | 2022-04-02 | 2022-07-19 | 葛有君 | Multipurpose micrometer with replaceable measuring head |
| CN217585600U (en) * | 2022-03-07 | 2022-10-14 | 华能(浙江)能源开发有限公司长兴分公司 | Inner diameter and outer diameter measuring tool with horizontal display function |
-
2022
- 2022-12-17 CN CN202211626777.XA patent/CN115752133A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB419678A (en) * | 1933-06-15 | 1934-11-16 | Ambrose Shardlow & Company Ltd | Improvements in or relating to micrometer screw gauges |
| CN2108268U (en) * | 1990-12-24 | 1992-06-24 | 雷树北 | Multifunctional outside diameter micrometer |
| CN2725842Y (en) * | 2004-09-22 | 2005-09-14 | 合肥工业大学 | Internal and external diameter microcalipers |
| WO2013037190A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州蓝王机床工具科技有限公司 | Inner diameter micrometer |
| CN104457476A (en) * | 2014-12-25 | 2015-03-25 | 苏州莱测检测科技有限公司 | Multifunctional micrometer |
| CN204268994U (en) * | 2014-12-25 | 2015-04-15 | 苏州莱测检测科技有限公司 | A kind of multi-functional milscale |
| CN107702614A (en) * | 2017-10-13 | 2018-02-16 | 威海职业学院 | A kind of micrometer |
| CN208860225U (en) * | 2018-10-26 | 2019-05-14 | 西安市科创人防工程防护设备质量检测有限公司 | A kind of multi-functional micrometer |
| CN209310662U (en) * | 2019-02-20 | 2019-08-27 | 广州市全昌机电设备有限公司 | Set the detection internal-and external diameter micrometer of error range alarm prompt function |
| CN210004894U (en) * | 2019-06-28 | 2020-01-31 | 长春市宝成伟业汽车零部件有限公司 | multifunction micrometer |
| CN217585600U (en) * | 2022-03-07 | 2022-10-14 | 华能(浙江)能源开发有限公司长兴分公司 | Inner diameter and outer diameter measuring tool with horizontal display function |
| CN217005558U (en) * | 2022-04-02 | 2022-07-19 | 葛有君 | Multipurpose micrometer with replaceable measuring head |
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